@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@400;500;600;700;800&family=Noto+Serif+SC:wght@500;600;700&display=swap");

:root {
  color-scheme: light;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #10243e;
  background: #f5f6f3;
  font-synthesis: none;
  --ivory: #f5f3ed;
  --paper: #fffefa;
  --navy: #061b38;
  --navy-2: #0a2d54;
  --blue: #0c4eb5;
  --blue-2: #1568d8;
  --teal: #19b6ac;
  --teal-soft: #dcf5f1;
  --cyan: #77dcd2;
  --ink: #10243e;
  --muted: #687789;
  --line: #dbe1e3;
  --line-soft: #e9edec;
  --success: #08795f;
  --warning: #a66a00;
  --danger: #a83845;
  --shadow: 0 24px 70px rgba(14, 42, 73, .10);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --ivory: #08111f;
  --paper: #111c2b;
  --navy: #061426;
  --navy-2: #9bc9ff;
  --blue: #64a3ff;
  --blue-2: #7bb1ff;
  --teal: #42d4c5;
  --teal-soft: #103934;
  --cyan: #73ded4;
  --ink: #e8eef7;
  --muted: #9babbc;
  --line: #2d3b4e;
  --line-soft: #223044;
  --success: #59d7b5;
  --warning: #f1b85c;
  --danger: #ff8492;
  --shadow: 0 24px 70px rgba(0, 0, 0, .34);
}
[hidden] { display: none !important; }

* { box-sizing: border-box; }
html { width: 100%; max-width: 100%; scroll-behavior: smooth; overflow-x: clip; }
body { width: 100%; max-width: 100%; min-width: 0; margin: 0; min-height: 100vh; overflow-x: clip; background: var(--ivory); color: var(--ink); -webkit-font-smoothing: antialiased; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
button:disabled { opacity: .55; cursor: wait; }
button, a, input, textarea, select { outline: none; }
button:focus-visible, a:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 3px solid rgba(25,182,172,.28); outline-offset: 2px; }
[hidden] { display: none !important; }
svg { flex: 0 0 auto; }
.muted { color: var(--muted); }

.theme-toggle { position: fixed; z-index: 160; right: 20px; bottom: 20px; min-height: 42px; padding: 0 15px; display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid rgba(98,125,151,.28); border-radius: 23px; background: rgba(255,254,250,.92); color: #173454; box-shadow: 0 12px 32px rgba(6,27,56,.18); backdrop-filter: blur(16px); font-size: 11px; font-weight: 700; transition: transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease; }
.theme-toggle:hover { transform: translateY(-2px); border-color: var(--teal); }
:root[data-theme="dark"] .theme-toggle { border-color: rgba(126,166,204,.28); background: rgba(16,28,43,.94); color: #edf5ff; box-shadow: 0 12px 32px rgba(0,0,0,.42); }

.button { min-height: 42px; border: 1px solid var(--line); border-radius: 7px; padding: 0 18px; display: inline-flex; align-items: center; justify-content: center; gap: 9px; background: white; color: var(--ink); font-weight: 650; transition: transform .18s ease, background .18s ease, border-color .18s ease, box-shadow .18s ease; }
.button:hover { transform: translateY(-1px); border-color: #a9b6bf; }
.button--primary { background: var(--blue); border-color: var(--blue); color: white; box-shadow: 0 10px 22px rgba(12,78,181,.2); }
.button--primary:hover { background: #083c8c; border-color: #083c8c; box-shadow: 0 14px 28px rgba(12,78,181,.25); }
.button--dark { background: var(--navy); border-color: var(--navy); color: white; }
.button--ghost { background: transparent; border-color: #bdc8cb; }
.button--light { background: white; border-color: white; color: var(--navy); box-shadow: 0 15px 35px rgba(0,0,0,.2); }
.button--glass { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.34); color: white; backdrop-filter: blur(10px); }
.button--large { min-height: 58px; padding: 0 25px; border-radius: 8px; font-size: 16px; }
.icon-button { width: 38px; height: 38px; padding: 0; border-radius: 50%; display: inline-grid; place-items: center; border: 1px solid var(--line); background: white; color: var(--navy); }
.icon-button:hover { color: var(--teal); border-color: var(--teal); }
.back-button { border: 0; background: transparent; color: var(--muted); padding: 8px 0; }
.back-button:hover { color: var(--blue); }

.brand { border: 0; background: transparent; padding: 0; display: inline-flex; align-items: center; gap: 12px; color: inherit; text-align: left; }
.brand-symbol { width: 43px; height: 43px; position: relative; display: block; transform: rotate(-7deg); }
.brand-symbol i { position: absolute; display: block; width: 18px; height: 30px; border-radius: 50% 50% 58% 42%; background: var(--teal); transform: rotate(35deg); }
.brand-symbol i:nth-child(1) { left: 2px; top: 7px; opacity: .72; }
.brand-symbol i:nth-child(2) { left: 14px; top: 1px; background: var(--blue-2); opacity: .9; }
.brand-symbol i:nth-child(3) { left: 22px; top: 12px; height: 23px; background: #6cd5ca; }
.brand-copy { display: flex; flex-direction: column; gap: 2px; }
.brand-copy strong { font-family: "Noto Serif SC", serif; font-size: 22px; letter-spacing: .08em; }
.brand-copy small { font-size: 8px; letter-spacing: .17em; opacity: .64; }
.brand--compact .brand-symbol { width: 34px; height: 34px; transform: scale(.78) rotate(-7deg); transform-origin: left center; margin-right: -4px; }
.brand--compact .brand-copy strong { font-size: 18px; }
.brand--compact .brand-copy small { font-size: 7px; }
.home-brand-lockup { display: inline-flex; align-items: center; gap: 13px; min-width: 0; }
.home-brand-divider { width: 1px; height: 29px; flex: 0 0 auto; background: currentColor; opacity: .15; }
.home-company-logo { width: 112px; height: auto; display: block; object-fit: contain; background: transparent; }

/* Public homepage */
.public-header { height: 88px; padding: 0 clamp(26px, 4.4vw, 74px); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 28px; background: rgba(245,243,237,.94); border-bottom: 1px solid rgba(16,36,62,.1); position: sticky; top: 0; z-index: 20; backdrop-filter: blur(18px); }
.public-header nav { display: flex; align-items: center; gap: 6px; }
.public-header nav button { border: 0; background: transparent; color: #526276; font-size: 13px; padding: 12px 15px; }
.public-header nav button:hover { color: var(--blue); }
.header-actions { justify-self: end; display: flex; align-items: center; gap: 9px; }
.home-page { min-height: 100vh; background: var(--ivory); }
.academy-hero { min-height: min(840px, calc(100vh - 88px)); position: relative; overflow: hidden; display: grid; grid-template-columns: minmax(520px, 48%) 1fr; background: radial-gradient(circle at 73% 44%, #164f91 0, #0b3768 26%, #07284e 49%, var(--navy) 82%); color: white; }
.academy-hero::before { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(6,27,56,.95) 0%, rgba(6,27,56,.83) 42%, rgba(6,27,56,.12) 72%); }
.academy-hero::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, transparent 0 49.9%, rgba(137,227,217,.09) 50%, transparent 50.1%), linear-gradient(25deg, transparent 0 69.9%, rgba(255,255,255,.055) 70%, transparent 70.1%); background-size: 190px 190px, 270px 270px; mask-image: linear-gradient(90deg, transparent 35%, #000); }
.hero-grain { position: absolute; inset: 0; opacity: .12; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.75' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.3'/%3E%3C/svg%3E"); mix-blend-mode: screen; pointer-events: none; }
.hero-copy { position: relative; z-index: 5; padding: clamp(100px, 13vh, 140px) 20px 100px clamp(36px, 5.5vw, 90px); animation: hero-rise .75s cubic-bezier(.22,.8,.32,1) both; }
.eyebrow { display: flex; align-items: center; gap: 11px; margin: 0 0 24px; color: #8be2d8; font-size: 13px; font-weight: 700; letter-spacing: .14em; }
.eyebrow span { width: 34px; height: 1px; background: currentColor; }
.hero-copy h1 { margin: 0; width: min(790px, 58vw); color: white; font-family: "Noto Serif SC", serif; font-size: clamp(48px, 4.65vw, 76px); line-height: 1.28; letter-spacing: -.055em; font-weight: 600; }
.hero-copy h1 em { color: #9ce6df; font-style: normal; }
.hero-lead { width: min(630px, 88%); margin: 30px 0 32px; color: rgba(255,255,255,.74); font-size: 17px; line-height: 1.9; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }
.hero-trust { margin-top: 46px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,.16); width: min(680px, 90%); display: flex; flex-wrap: wrap; gap: 22px; color: rgba(255,255,255,.58); font-size: 12px; }
.hero-trust span { display: flex; align-items: center; gap: 7px; }
.hero-lab { position: relative; z-index: 3; min-height: 750px; animation: hero-lab-in 1s .08s cubic-bezier(.22,.8,.32,1) both; }
.hero-lab::after { content: ""; position: absolute; width: 680px; height: 680px; border-radius: 50%; right: -70px; top: 35px; background: radial-gradient(circle, rgba(46,183,212,.18), rgba(25,99,173,.06) 48%, transparent 70%); border: 1px solid rgba(132,210,230,.2); }
.orbital { position: absolute; z-index: 1; border: 1px solid rgba(150,227,235,.25); border-radius: 50%; transform: rotate(-19deg); }
.orbital--one { width: 660px; height: 340px; right: -60px; top: 160px; }
.orbital--two { width: 560px; height: 560px; right: 30px; top: 80px; border-style: dashed; opacity: .6; animation: spin 36s linear infinite; }
@keyframes spin { to { transform: rotate(341deg); } }
.droplet-field { position: absolute; inset: 0; z-index: 2; }
.droplet-field i { --x: calc((var(--i) * 47) % 83); --y: calc((var(--i) * 73) % 78); position: absolute; left: calc(var(--x) * 1%); top: calc(var(--y) * 1%); width: calc(7px + (var(--i) % 4) * 3px); height: calc(9px + (var(--i) % 4) * 4px); border-radius: 52% 48% 58% 42%; background: rgba(112,226,218,.45); box-shadow: 0 0 18px rgba(78,218,209,.7); transform: rotate(28deg); animation: float 4s ease-in-out infinite alternate; animation-delay: calc(var(--i) * -.23s); }
@keyframes float { to { translate: 0 -13px; opacity: .35; } }
.glass-console { position: absolute; z-index: 5; width: min(470px, 72%); right: 7vw; top: 145px; padding: 29px; background: linear-gradient(145deg, rgba(13,71,128,.78), rgba(7,35,72,.63)); border: 1px solid rgba(183,235,243,.32); border-radius: 26px 5px 26px 5px; box-shadow: 0 45px 90px rgba(0,8,28,.42), inset 0 1px rgba(255,255,255,.18); backdrop-filter: blur(22px); transform: perspective(1100px) rotateY(-8deg) rotateX(3deg); }
.console-head { display: flex; justify-content: space-between; color: rgba(255,255,255,.54); font-size: 9px; letter-spacing: .18em; }
.console-head b { color: #89e3d9; font-weight: 600; }
.console-title { margin: 48px 0 35px; display: flex; flex-direction: column; gap: 8px; }
.console-title small { color: rgba(255,255,255,.62); }
.console-title strong { font-family: "Noto Serif SC", serif; font-size: 45px; letter-spacing: .02em; }
.matrix-bars { display: grid; gap: 13px; }
.matrix-bars i { width: var(--w); height: 7px; border-radius: 10px; background: linear-gradient(90deg, var(--teal), #56a6ff); box-shadow: 0 0 16px rgba(76,204,217,.3); }
.console-metric { margin-top: 44px; padding-top: 25px; border-top: 1px solid rgba(255,255,255,.18); display: grid; grid-template-columns: auto 1fr auto 1fr; gap: 10px; align-items: baseline; }
.console-metric strong { font-size: 24px; color: #8fe2da; }
.console-metric span { font-size: 10px; color: rgba(255,255,255,.52); }
.float-card { position: absolute; z-index: 6; min-width: 250px; display: grid; grid-template-columns: 45px 1fr; gap: 13px; align-items: center; padding: 15px 18px; border: 1px solid rgba(255,255,255,.22); background: rgba(7,43,82,.72); backdrop-filter: blur(14px); box-shadow: 0 18px 45px rgba(0,10,34,.28); }
.float-card > span { width: 39px; height: 39px; border-radius: 50%; display: grid; place-items: center; background: rgba(26,185,175,.22); border: 1px solid rgba(117,226,219,.5); color: #a4eee7; font-size: 10px; }
.float-card div { display: flex; flex-direction: column; gap: 3px; }
.float-card b { font-size: 14px; }
.float-card small { font-size: 10px; color: rgba(255,255,255,.53); letter-spacing: .05em; }
.float-card--a { right: 3vw; top: 475px; }.float-card--b { right: 22vw; top: 565px; }.float-card--c { right: 5vw; top: 655px; }
.hero-index { position: absolute; z-index: 7; left: clamp(36px, 5.5vw, 90px); bottom: 26px; display: flex; gap: 30px; color: rgba(255,255,255,.3); font-size: 8px; letter-spacing: .16em; }
.metrics-strip { display: grid; grid-template-columns: repeat(4,1fr); padding: 0 clamp(32px, 7vw, 112px); background: var(--paper); border-bottom: 1px solid var(--line); }
.metrics-strip > div { min-height: 126px; display: flex; flex-direction: column; justify-content: center; padding: 20px 35px; border-right: 1px solid var(--line); }
.metrics-strip > div:first-child { border-left: 1px solid var(--line); }
.metrics-strip strong { font-family: "Noto Serif SC", serif; color: var(--blue); font-size: 38px; }
.metrics-strip strong.metric-ready { animation: metric-pop .45s cubic-bezier(.22,.8,.32,1) both; }
.metrics-strip span { color: var(--muted); font-size: 12px; }
.domain-section { padding: 110px clamp(32px,7vw,112px) 120px; background: #f1f0ea; border-bottom: 1px solid var(--line); }
.domain-intro { display: grid; grid-template-columns: minmax(0,1.35fr) minmax(320px,.65fr); gap: clamp(45px,8vw,130px); align-items: end; margin-bottom: 52px; }
.domain-intro h2 { max-width: 760px; margin: 0; color: var(--navy-2); font: 600 clamp(36px,3.6vw,55px)/1.35 "Noto Serif SC",serif; letter-spacing: -.035em; }
.domain-intro > div:last-child > p { margin: 0 0 25px; color: var(--muted); font-size: 13px; line-height: 1.9; }
.domain-intro > div:last-child > span { display: inline-flex; align-items: center; gap: 7px; margin: 0 18px 6px 0; color: #6f7d85; font-size: 8px; letter-spacing: .14em; }
.domain-intro > div:last-child > span i { width: 7px; height: 7px; border-radius: 50%; background: var(--teal); box-shadow: 0 0 0 4px rgba(25,182,172,.1); }
.domain-intro > div:last-child > span:last-child i { background: var(--blue); box-shadow: 0 0 0 4px rgba(12,78,181,.1); }
.domain-map { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); grid-auto-rows: minmax(188px,auto); border-left: 1px solid #cfd6d5; border-top: 1px solid #cfd6d5; box-shadow: 0 28px 70px rgba(16,36,62,.08); }
.domain-card { min-width: 0; position: relative; padding: 28px; overflow: hidden; background: rgba(255,254,250,.9); border-right: 1px solid #cfd6d5; border-bottom: 1px solid #cfd6d5; transition: transform .22s ease, background .22s ease, box-shadow .22s ease; }
.domain-card:not(.domain-card--core):hover { z-index: 2; transform: translateY(-5px); background: #fff; box-shadow: 0 20px 45px rgba(10,45,84,.12); }
.domain-card > span { position: absolute; right: 20px; top: 17px; color: #a4afb3; font-size: 9px; }
.domain-card > svg { color: var(--blue); margin: 5px 0 29px; }
.domain-card h3 { margin: 0 0 9px; color: var(--navy-2); font: 600 21px "Noto Serif SC",serif; }
.domain-card p { margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; }
.domain-card > small { position: absolute; left: 28px; bottom: 22px; color: #9ba5a9; font-size: 7px; letter-spacing: .16em; }
.domain-card--core { grid-column: span 2; grid-row: span 2; min-height: 410px; padding: 0; background: radial-gradient(circle at 55% 45%,#105e92 0,#093c6f 32%,#061d3b 76%); color: white; }
.domain-card--core::before { content: ""; position: absolute; inset: 0; opacity: .15; background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 120 120' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)' opacity='.28'/%3E%3C/svg%3E"); }
.domain-orbit { position: absolute; width: 255px; height: 255px; left: 50%; top: 46%; translate: -50% -50%; display: flex; flex-direction: column; align-items: center; justify-content: center; border-radius: 50%; border: 1px solid rgba(148,230,224,.34); box-shadow: 0 0 0 35px rgba(84,196,200,.045),0 0 0 75px rgba(84,196,200,.028); }
.domain-orbit::before,.domain-orbit::after { content: ""; position: absolute; width: 340px; height: 138px; border-radius: 50%; border: 1px dashed rgba(151,225,225,.22); rotate: -22deg; }
.domain-orbit::after { rotate: 28deg; }
.domain-orbit i { position: absolute; width: 12px; height: 16px; border-radius: 55% 45% 58% 42%; background: #66d9cf; box-shadow: 0 0 20px #42bdb9; }
.domain-orbit i:first-child { left: 9px; top: 51px; rotate: 30deg; }.domain-orbit i:nth-child(2) { right: 3px; bottom: 62px; rotate: -20deg; background: #55aaf8; }
.domain-orbit strong { font: 600 61px "Noto Serif SC",serif; letter-spacing: .04em; }.domain-orbit span { color: #8de3da; font-size: 13px; letter-spacing: .18em; }
.domain-card--core footer { position: absolute; left: 30px; right: 30px; bottom: 25px; display: flex; align-items: end; justify-content: space-between; border-top: 1px solid rgba(255,255,255,.16); padding-top: 17px; }
.domain-card--core footer b { color: rgba(255,255,255,.48); font-size: 8px; letter-spacing: .15em; }.domain-card--core footer p { color: rgba(255,255,255,.66); }
.domain-card--wide { grid-column: span 2; background: linear-gradient(125deg,#f9fcfb,#e6f3f1); }
.domain-card--wide::after { content: "dPCR"; position: absolute; right: -10px; bottom: -30px; color: rgba(12,78,181,.055); font: 700 92px "Noto Serif SC",serif; }
.domain-card--clinical { background: rgba(250,249,244,.92); }
.domain-card--clinical > b { display: block; margin: 3px 0 28px; color: var(--teal); font: 600 24px "Noto Serif SC",serif; letter-spacing: .08em; }
.domain-card--clinical h3 { font-size: 18px; }.domain-card--clinical p { font-size: 10px; }
.path-section { padding: 100px clamp(32px, 7vw, 112px) 110px; background: var(--paper); }
.section-intro { max-width: 840px; margin-bottom: 48px; }
.section-kicker { margin: 0 0 16px; color: var(--teal); font-size: 11px; letter-spacing: .2em; font-weight: 800; }
.section-intro h2 { margin: 0; color: var(--navy-2); font-family: "Noto Serif SC", serif; font-size: clamp(34px,3.4vw,50px); font-weight: 600; }
.section-intro > p:last-child { color: var(--muted); line-height: 1.8; }
.path-grid { display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.path-grid article { position: relative; min-height: 310px; padding: 42px 28px 30px; border-right: 1px solid var(--line); transition: background .18s ease, transform .18s ease; }
.path-grid article:first-child { border-left: 1px solid var(--line); }
.path-grid article:hover { background: #f4f8f7; transform: translateY(-4px); }
.path-grid article > span { position: absolute; right: 20px; top: 18px; color: #a9b4bb; font-size: 10px; }
.path-grid svg { color: var(--blue); margin-bottom: 40px; }
.path-grid h3 { margin: 0 0 14px; font-family: "Noto Serif SC", serif; font-size: 23px; color: var(--navy-2); }
.path-grid p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.8; }
.audience-section { display: grid; grid-template-columns: 1fr 1fr; background: var(--navy); }
.audience-card { min-height: 580px; padding: 75px clamp(38px,6vw,92px); color: white; position: relative; overflow: hidden; transition: filter .25s ease; }
.audience-card::after { content: ""; position: absolute; width: 410px; height: 410px; border: 1px solid rgba(255,255,255,.15); border-radius: 50%; right: -140px; bottom: -170px; }
.audience-card::before { content: ""; position: absolute; inset: 0; opacity: 0; background: radial-gradient(circle at 82% 72%,rgba(119,220,210,.18),transparent 38%); transition: opacity .25s ease; }
.audience-card:hover::before { opacity: 1; }
.audience-card--channel { background: linear-gradient(135deg,#07274e,#0d4c89); }
.audience-card--doctor { background: linear-gradient(135deg,#0a3b49,#0a776e); }
.audience-card > p { margin: 0 0 20px; color: rgba(255,255,255,.55); font-size: 10px; letter-spacing: .2em; }
.audience-card h2 { margin: 0 0 10px; font-family: "Noto Serif SC", serif; font-size: 48px; font-weight: 600; }
.audience-card > span { color: #9be7df; font-size: 13px; }
.audience-card ul { list-style: none; margin: 55px 0 60px; padding: 0; display: grid; gap: 18px; }
.audience-card li { padding-bottom: 16px; border-bottom: 1px solid rgba(255,255,255,.16); color: rgba(255,255,255,.75); }
.audience-card button { border: 0; border-bottom: 1px solid rgba(255,255,255,.5); background: transparent; color: white; padding: 0 0 12px; display: flex; gap: 12px; align-items: center; font-weight: 650; }
.public-footer { min-height: 115px; padding: 24px clamp(32px,7vw,112px); display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; color: var(--muted); font-size: 11px; }
.public-footer > span { justify-self: end; }

@keyframes hero-rise { from { opacity: 0; transform: translateY(24px); } }
@keyframes hero-lab-in { from { opacity: 0; transform: translateX(35px); } }
@keyframes metric-pop { from { opacity: 0; transform: translateY(8px); } }

/* Auth */
.auth-shell { min-height: 100vh; display: grid; grid-template-columns: minmax(520px,56%) minmax(430px,44%); }
.auth-visual { position: relative; overflow: hidden; min-height: 100vh; padding: 46px 5.5vw 70px; background: linear-gradient(145deg,#061b38 0,#0a3c6d 62%,#0b7a70 135%); color: white; display: flex; flex-direction: column; justify-content: center; }
.auth-brand { position: absolute; left: 5.5vw; top: 36px; color: white; }
.auth-visual > div:nth-of-type(2) { position: relative; z-index: 2; max-width: 650px; }
.auth-visual h1 { margin: 0 0 24px; font-family: "Noto Serif SC", serif; font-size: clamp(48px,5vw,72px); font-weight: 600; letter-spacing: -.04em; }
.auth-visual p:not(.eyebrow) { width: min(560px,85%); color: rgba(255,255,255,.65); line-height: 1.9; font-size: 16px; }
.auth-visual > small { position: absolute; bottom: 35px; color: rgba(255,255,255,.32); font-size: 9px; letter-spacing: .18em; }
.auth-visual-grid { position: absolute !important; inset: 0 0 0 auto; width: 55%; opacity: .42; }
.auth-visual-grid::before, .auth-visual-grid::after { content: ""; position: absolute; border: 1px solid rgba(143,231,222,.3); border-radius: 50%; }
.auth-visual-grid::before { width: 580px; height: 580px; right: -250px; top: 12%; }
.auth-visual-grid::after { width: 380px; height: 380px; right: -100px; top: 32%; border-style: dashed; }
.auth-visual-grid i { position: absolute; width: 13px; height: 17px; border-radius: 50%; background: #62d8ce; box-shadow: 0 0 22px #32b8c1; transform: rotate(30deg); }
.auth-visual-grid i:nth-child(1){right:18%;top:24%}.auth-visual-grid i:nth-child(2){right:34%;top:45%}.auth-visual-grid i:nth-child(3){right:12%;top:62%}.auth-visual-grid i:nth-child(4){right:43%;top:72%}
.auth-panel { min-height: 100vh; position: relative; background: var(--paper); padding: 44px clamp(42px,6vw,90px); display: flex; flex-direction: column; justify-content: center; }
.auth-panel > .back-button { position: absolute; top: 35px; left: clamp(42px,6vw,90px); white-space: nowrap; }
.auth-heading { margin: 40px 0 30px; }
.auth-heading > span, .micro-label { color: var(--teal); font-size: 10px; font-weight: 800; letter-spacing: .18em; }
.auth-heading h2 { margin: 9px 0 8px; color: var(--navy-2); font-family: "Noto Serif SC", serif; font-size: 39px; font-weight: 600; }
.auth-heading p { margin: 0; color: var(--muted); font-size: 13px; line-height: 1.7; }
.auth-form, .modal-form { display: grid; gap: 17px; }
.auth-form label, .modal-form label { display: grid; gap: 8px; color: #33485d; font-size: 12px; font-weight: 650; }
.auth-form label small { color: #8a969f; font-size: 10px; font-weight: 400; }
.auth-field-note { margin: -3px 0 1px; padding: 10px 12px; border: 1px solid rgba(12,176,160,.18); border-radius: 6px; color: #64747d; background: rgba(12,176,160,.05); font-size: 10px; line-height: 1.6; }
.auth-form input, .auth-form select, .modal-form input, .modal-form select, .modal-form textarea { width: 100%; min-height: 49px; border: 1px solid #ccd6d9; border-radius: 6px; background: white; color: var(--ink); padding: 10px 13px; transition: border-color .16s ease, box-shadow .16s ease; }
.auth-form input:focus, .auth-form select:focus, .modal-form input:focus, .modal-form select:focus, .modal-form textarea:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(12,78,181,.07); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.role-switch { display: grid; grid-template-columns: 1fr 1fr; border: 1px solid var(--line); border-radius: 7px; padding: 4px; background: #f2f4f4; }
.role-switch button { min-height: 39px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); }
.role-switch button.active { background: white; color: var(--blue); box-shadow: 0 3px 10px rgba(20,46,75,.08); font-weight: 700; }
.button--submit { min-height: 55px; margin-top: 5px; }
.auth-switch { text-align: center; color: var(--muted); font-size: 12px; }
.auth-switch button { border: 0; background: transparent; color: var(--blue); padding: 0; font-weight: 700; }
.security-note { color: #8a959f; font-size: 10px; display: flex; align-items: center; gap: 7px; justify-content: center; }
.email-code-control { display: grid; grid-template-columns: minmax(0,1fr) 118px; gap: 9px; }
.email-code-control input { width: 100%; min-width: 0; min-height: 49px; border: 1px solid #ccd6d9; border-radius: 6px; background: white; color: var(--ink); padding: 10px 13px; }
.email-code-control input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(12,78,181,.07); }
.email-code-control > button { min-height: 49px; border: 1px solid rgba(12,78,181,.24); border-radius: 6px; background: #edf4fd; color: var(--blue); font-size: 12px; font-weight: 700; }
.email-code-control > button:hover { background: #e2edfb; }
.email-service-pending { display: grid; justify-items: center; gap: 9px; padding: 30px 22px; border: 1px dashed #cbd5d8; border-radius: 9px; background: #f5f7f6; color: var(--muted); text-align: center; }
.email-service-pending svg { color: var(--blue); }.email-service-pending b { color: var(--navy-2); }.email-service-pending p { margin: 0; font-size: 12px; line-height: 1.7; }

/* Portal */
.portal-body-bg { background: #f2f4f3; }
.portal-shell { min-height: 100vh; display: grid; grid-template-columns: 234px minmax(0,1fr); grid-template-rows: 74px minmax(0,1fr); }
.portal-header { grid-column: 1 / -1; display: flex; align-items: center; justify-content: space-between; padding: 0 28px; background: var(--paper); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 20; }
.portal-user { display: flex; align-items: center; gap: 13px; }
.portal-user > div { display: flex; flex-direction: column; min-width: 130px; }
.portal-user strong { font-size: 13px; }.portal-user small { color: var(--muted); font-size: 10px; }
.role-badge { padding: 5px 9px; color: var(--success); background: #e4f4ef; border-radius: 20px; font-size: 10px; }
.portal-sidebar { grid-row: 2; background: var(--navy); color: white; padding: 35px 19px 24px; display: flex; flex-direction: column; position: sticky; top: 74px; height: calc(100vh - 74px); }
.nav-caption { margin: 0 11px 18px; color: rgba(255,255,255,.34); font-size: 9px; letter-spacing: .18em; }
.portal-sidebar nav { display: grid; gap: 5px; }
.portal-sidebar nav button { min-height: 45px; border: 0; background: transparent; color: rgba(255,255,255,.56); border-radius: 6px; display: flex; align-items: center; gap: 12px; padding: 0 13px; text-align: left; font-size: 13px; }
.portal-sidebar nav button:hover { color: white; background: rgba(255,255,255,.06); }
.portal-sidebar nav button.active { color: white; background: linear-gradient(90deg,rgba(25,182,172,.27),rgba(25,182,172,.06)); box-shadow: inset 3px 0 var(--teal); }
.sidebar-help { margin-top: auto; padding: 18px 13px; border: 1px solid rgba(255,255,255,.12); border-radius: 7px; display: flex; gap: 10px; color: rgba(255,255,255,.55); }
.sidebar-help div { display: flex; flex-direction: column; gap: 4px; }.sidebar-help b { color: white; font-size: 11px; }.sidebar-help button { border: 0; background: transparent; color: #89ddd5; font-size: 10px; padding: 0; text-align: left; }
.portal-main { grid-column: 2; grid-row: 2; width: min(1340px,100%); padding: 46px clamp(26px,4vw,60px) 80px; }
.page-heading, .admin-page-heading { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 34px; }
.page-heading > div > span, .admin-page-heading > div > span { color: var(--teal); font-size: 9px; letter-spacing: .18em; font-weight: 800; }
.page-heading h1, .admin-page-heading h1 { margin: 6px 0 7px; color: var(--navy-2); font-family: "Noto Serif SC", serif; font-size: 34px; font-weight: 600; }
.page-heading p, .admin-page-heading p { margin: 0; color: var(--muted); font-size: 12px; }
.overview-hero { min-height: 235px; background: linear-gradient(120deg,#09284e,#0c568b 64%,#0b887e); border-radius: 10px 10px 38px 10px; color: white; padding: 42px 48px; display: flex; justify-content: space-between; align-items: center; position: relative; overflow: hidden; box-shadow: 0 25px 55px rgba(6,42,80,.18); }
.overview-hero::after { content: ""; width: 310px; height: 310px; position: absolute; right: -80px; top: -115px; border-radius: 50%; border: 1px solid rgba(255,255,255,.2); box-shadow: 0 0 0 48px rgba(255,255,255,.025),0 0 0 95px rgba(255,255,255,.02); }
.overview-hero > div:first-child { position: relative; z-index: 2; }.overview-hero > div:first-child > span { color: #8fe3da; font-size: 11px; letter-spacing: .1em; }.overview-hero h2 { margin: 10px 0 4px; font-family: "Noto Serif SC", serif; font-size: 32px; }.overview-hero p { margin: 0; color: rgba(255,255,255,.6); font-size: 12px; }
.overview-tags { margin-top: 30px; display: flex; gap: 7px; }.overview-tags i { border: 1px solid rgba(255,255,255,.25); border-radius: 20px; padding: 5px 10px; color: rgba(255,255,255,.63); font-style: normal; font-size: 8px; letter-spacing: .1em; }
.progress-ring { --value: calc(var(--progress) * 3.6deg); width: 130px; height: 130px; border-radius: 50%; background: conic-gradient(#78ded4 var(--value),rgba(255,255,255,.13) 0); display: grid; place-items: center; position: relative; z-index: 2; }
.progress-ring::before { content: ""; position: absolute; inset: 9px; border-radius: 50%; background: #0b4979; }.progress-ring strong,.progress-ring span { position: relative; z-index: 1; }.progress-ring strong { grid-area: 1/1; margin-top: -12px; font-size: 28px; }.progress-ring span { grid-area: 1/1; margin-top: 33px; color: rgba(255,255,255,.55); font-size: 9px; }
.overview-level-badge { width: 150px; min-height: 150px; padding: 22px 13px; position: relative; z-index: 2; display: grid; place-content: center; justify-items: center; gap: 5px; border: 1px solid rgba(255,255,255,.32); border-radius: 50%; background: rgba(255,255,255,.075); color: white; box-shadow: 0 0 0 13px rgba(255,255,255,.025); cursor: pointer; transition: transform .18s ease,background .18s ease; }
.overview-level-badge:hover,.overview-level-badge:focus-visible { transform: translateY(-2px); background: rgba(255,255,255,.13); outline: 2px solid rgba(126,224,214,.6); outline-offset: 3px; }
.overview-level-badge span { color: #7fe1d7; font-size: 8px; letter-spacing: .15em; }
.overview-level-badge strong { color: white; font: 600 23px "Noto Serif SC",serif; line-height: 1.3; text-align: center; }
.overview-level-badge small { color: rgba(255,255,255,.58); font-size: 8px; }
.metric-cards { display: grid; grid-template-columns: repeat(4,1fr); gap: 14px; margin: 18px 0; }
.metric-cards article { min-height: 126px; padding: 22px; background: var(--paper); border: 1px solid var(--line); border-radius: 8px; display: grid; grid-template-columns: auto 1fr; align-items: start; gap: 12px; }
.metric-cards svg { color: var(--teal); }.metric-cards span { color: var(--muted); font-size: 11px; }.metric-cards strong { grid-column: 1/-1; color: var(--navy-2); font-family: "Noto Serif SC", serif; font-size: 30px; }.metric-cards strong small { color: var(--muted); font: 12px "Noto Sans SC"; }.metric-cards .metric-duration { font-family: "Noto Sans SC",sans-serif; font-size: 21px; }
.dashboard-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: 18px; }
.dashboard-panel { min-height: 320px; padding: 28px; background: var(--paper); border: 1px solid var(--line); border-radius: 9px; }
.dashboard-panel > header { display: flex; justify-content: space-between; align-items: center; }.dashboard-panel h2 { margin: 0; font-family: "Noto Serif SC",serif; font-size: 22px; }.dashboard-panel header button { border: 0; background: transparent; color: var(--blue); font-size: 11px; }
.mini-list { margin-top: 20px; display: grid; }.overview-material-button { position: relative; width: 100%; min-height: 67px; display: grid; grid-template-columns: 43px minmax(0,1fr) auto; align-items: center; gap: 12px; padding: 4px 2px; border: 0; border-top: 1px solid var(--line-soft); background: transparent; color: inherit; text-align: left; cursor: pointer; transition: background .16s ease,transform .16s ease; }.overview-material-button:hover,.overview-material-button:focus-visible { background: #f3f8f7; transform: translateX(2px); outline: none; }.overview-material-button > span:nth-child(2) { min-width: 0; }.overview-material-button em { display: inline-flex; align-items: center; gap: 3px; color: var(--blue); font-size: 9px; font-style: normal; font-weight: 700; }.file-glyph { width: 34px; height: 42px; border-radius: 4px; display: grid; place-items: center; color: white; background: var(--blue); font-size: 8px; }.mini-list b { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 12px; }.mini-list small { color: var(--muted); font-size: 10px; }.mini-list i { position: absolute; left: 57px; bottom: 8px; width: calc((100% - 57px) * var(--p) / 100); max-width: calc(100% - 57px); height: 2px; background: var(--teal); }
.dashboard-panel--dark { background: var(--navy); color: white; border-color: var(--navy); display: flex; flex-direction: column; }.dashboard-panel--dark > span { color: #73d8cf; font-size: 8px; letter-spacing: .18em; }.dashboard-panel--dark h2 { margin-top: 45px; font-size: 25px; line-height: 1.65; }.dashboard-panel--dark p { color: rgba(255,255,255,.52); font-size: 11px; line-height: 1.7; }.dashboard-panel--dark button { margin-top: auto; width: fit-content; border: 0; border-bottom: 1px solid rgba(255,255,255,.45); background: transparent; color: white; padding: 0 0 9px; display: flex; gap: 9px; }
.filter-row { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 24px; }.filter-row button,.ranking-tabs button { min-height: 36px; border: 1px solid var(--line); background: white; color: var(--muted); padding: 0 14px; border-radius: 18px; font-size: 11px; }.filter-row button.active,.ranking-tabs button.active { color: white; background: var(--blue); border-color: var(--blue); }
.material-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 18px; }
.material-card { min-width: 0; display: grid; grid-template-rows: auto minmax(0,1fr); background: var(--paper); border: 1px solid var(--line); border-radius: 9px; overflow: hidden; transition: transform .2s ease,box-shadow .2s ease; }.material-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.material-load-more { min-height: 54px; display: flex; align-items: center; justify-content: center; }.material-load-more button { min-width: 220px; }
.material-browser { margin-bottom: 22px; overflow: hidden; border: 1px solid #d4dddd; border-radius: 10px; background: var(--paper); box-shadow: 0 18px 48px rgba(16,36,62,.06); }
.material-browser > header { min-height: 90px; padding: 19px 22px; display: flex; align-items: center; justify-content: space-between; gap: 22px; background: linear-gradient(115deg,#07264a,#0b4f83 72%,#0b7a72); color: white; }
.material-browser > header span { display: block; color: #7de0d6; font-size: 8px; font-weight: 700; letter-spacing: .17em; }
.material-browser > header h2 { margin: 4px 0 0; font: 600 20px "Noto Serif SC",serif; }
.material-browser > header label { width: min(340px,42%); min-height: 41px; padding: 0 13px; display: flex; align-items: center; gap: 9px; border: 1px solid rgba(255,255,255,.23); border-radius: 6px; background: rgba(255,255,255,.1); color: #8ee3dc; }
.material-browser > header input { width: 100%; border: 0; background: transparent; color: white; font-size: 11px; }
.material-browser > header input::placeholder { color: rgba(255,255,255,.52); }
.material-category-level { min-height: 74px; padding: 14px 20px; display: grid; grid-template-columns: 145px 1fr; gap: 16px; align-items: start; border-bottom: 1px solid var(--line-soft); }
.material-category-level--secondary { background: #f4f8f7; }
.category-level-label { padding: 7px 0 0 2px; display: grid; gap: 3px; }
.category-level-label b { color: var(--navy-2); font-size: 11px; }
.category-level-label small { color: #8a989e; font-size: 8px; }
.category-choice-list { display: flex; flex-wrap: wrap; gap: 7px; }
.category-choice-list button { min-height: 37px; padding: 0 13px; border: 1px solid #d5dddf; border-radius: 19px; background: white; color: #62727d; font-size: 10px; transition: .18s ease; }
.category-choice-list button:hover { border-color: #9bbab9; color: var(--success); }
.category-choice-list button b { margin-left: 5px; color: #99a4aa; font-size: 8px; }
.category-choice-list button.active { border-color: var(--blue); background: var(--blue); color: white; box-shadow: 0 7px 15px rgba(12,78,181,.16); }
.category-choice-list button.active b { color: #bcd6ff; }
.material-browser > footer { min-height: 43px; padding: 0 22px; display: flex; align-items: center; justify-content: space-between; color: #61747e; font-size: 9px; }
.material-browser > footer small { color: #9aa6ab; }
.material-cover { height: 145px; padding: 20px; position: relative; background: linear-gradient(135deg,#07264a,#0c528e 70%,#10a398); color: white; overflow: hidden; }.material-cover::after { content: ""; position: absolute; width: 180px; height: 180px; right: -70px; top: -70px; border-radius: 50%; border: 1px solid rgba(255,255,255,.25); box-shadow: 0 0 0 25px rgba(255,255,255,.025),0 0 0 50px rgba(255,255,255,.018); }.material-cover span { width: 42px; height: 55px; display: grid; place-items: center; background: rgba(255,255,255,.94); color: var(--blue); border-radius: 4px; font-size: 9px; font-weight: 800; box-shadow: 0 12px 28px rgba(0,0,0,.2); }.material-cover i { position: absolute; left: 75px; top: 26px; max-width: calc(100% - 110px); color: rgba(255,255,255,.78); font-style: normal; font-size: 11px; font-weight: 600; }.material-cover i small { display: block; margin-top: 6px; color: rgba(255,255,255,.52); font-size: 9px; font-weight: 400; }.material-cover b { position: absolute; right: 18px; bottom: 15px; color: rgba(255,255,255,.35); font-size: 30px; font-family: serif; }
.material-info { min-width: 0; display: flex; flex-direction: column; padding: 22px; }.material-meta { display: flex; justify-content: space-between; color: #89959d; font-size: 9px; }.material-info h2 { margin: 10px 0 8px; min-height: 50px; color: var(--navy-2); font-family: "Noto Serif SC",serif; font-size: 18px; line-height: 1.45; }.material-info > p { min-height: 42px; margin: 0; color: var(--muted); font-size: 11px; line-height: 1.7; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }.study-time-note { margin-top: 11px; display: flex; align-items: center; gap: 5px; color: #647c8f; font-size: 10px; }
.progress-line { height: 3px; background: #e9eeee; margin: 17px 0; }.progress-line i { display: block; width: var(--p); height: 100%; background: var(--teal); }
.material-actions { min-width: 0; margin-top: auto; display: grid; gap: 8px; }.material-actions-primary { min-width: 0; display: grid; grid-template-columns: repeat(auto-fit,minmax(118px,1fr)); gap: 8px; }.material-actions-primary .button { width: 100%; min-width: 0; min-height: 40px; padding-inline: 9px; justify-content: center; font-size: 10px; line-height: 1.25; white-space: normal; }.material-actions-secondary { min-width: 0; display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: stretch; gap: 8px; }.material-actions-secondary > .icon-button { width: 38px; height: 38px; align-self: center; }.material-actions-secondary .material-comment-button { width: 100%; min-width: 0; min-height: 38px; justify-content: center; overflow: hidden; }.locked-note { min-height: 38px; padding: 0 7px; display: flex; align-items: center; justify-content: center; gap: 4px; border: 1px solid var(--line-soft); border-radius: 5px; background: #f4f6f5; color: #8b969d; font-size: 8px; white-space: nowrap; }
.exam-card-list { display: grid; gap: 15px; }.exam-card { min-height: 160px; background: var(--paper); border: 1px solid var(--line); border-radius: 9px; padding: 26px 28px; display: grid; grid-template-columns: 45px 1fr 155px; gap: 20px; align-items: center; }.exam-no { color: #a6b1b8; font-family: serif; font-size: 28px; }.exam-card p { margin: 0 0 5px; color: var(--teal); font-size: 9px; letter-spacing: .1em; }.exam-card h2 { margin: 0 0 7px; font-family: "Noto Serif SC",serif; font-size: 20px; }.exam-card > div:nth-child(2) > span { color: var(--muted); font-size: 11px; }.exam-card ul { list-style: none; display: flex; gap: 16px; margin: 18px 0 0; padding: 0; color: #73818b; font-size: 10px; }.exam-result { display: flex; flex-direction: column; align-items: flex-end; gap: 3px; }.exam-result small { color: var(--muted); font-size: 9px; }.exam-result strong { color: var(--blue); font-family: serif; font-size: 34px; }.exam-result button { margin-top: 9px; font-size: 11px; }
.ranking-tabs { display: flex; gap: 8px; margin-bottom: 20px; }.ranking-panel { background: var(--paper); border: 1px solid var(--line); border-radius: 9px; overflow: hidden; }.ranking-podium { min-height: 270px; padding: 35px; display: flex; justify-content: center; align-items: end; gap: 36px; background: linear-gradient(135deg,#07264a,#0d578e); color: white; }.ranking-podium article { width: 150px; text-align: center; position: relative; }.ranking-podium article > span { position: absolute; right: 12px; top: -6px; color: #98e5dd; font-size: 10px; }.ranking-podium article > div { width: 64px; height: 64px; margin: auto; border-radius: 50%; display: grid; place-items: center; background: rgba(255,255,255,.16); border: 1px solid rgba(255,255,255,.38); font-size: 22px; }.ranking-podium h3 { margin: 9px 0 2px; }.ranking-podium p { margin: 0 0 10px; color: rgba(255,255,255,.48); font-size: 9px; }.ranking-podium strong { color: #97e6de; font-size: 25px; }.ranking-podium strong small { font-size: 10px; }.ranking-podium .podium-1 { transform: translateY(-28px) scale(1.08); }.ranking-podium .time-rank-value { font-size: 14px; }
.ranking-period-switch { min-height: 58px; padding: 10px 18px; display: flex; align-items: center; justify-content: center; gap: 7px; overflow-x: auto; border-bottom: 1px solid var(--line); background: #f5f8f7; scrollbar-width: none; }.ranking-period-switch::-webkit-scrollbar { display: none; }.ranking-period-switch button { min-width: 66px; min-height: 34px; padding: 0 13px; flex: 0 0 auto; border: 1px solid var(--line); border-radius: 18px; background: white; color: var(--muted); font-size: 10px; font-weight: 700; }.ranking-period-switch button.active { border-color: var(--blue); background: var(--blue); color: white; box-shadow: 0 7px 18px rgba(12,78,181,.18); }.ranking-period-switch button:disabled { opacity: .58; }.ranking-period-summary { min-height: 46px; padding: 9px 22px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid rgba(255,255,255,.1); background: #0a3157; color: white; }.ranking-period-summary span { font-size: 11px; font-weight: 700; }.ranking-period-summary small { color: rgba(255,255,255,.58); font-size: 9px; }.ranking-panel [data-challenge-ranking] { transition: opacity .16s ease; }.ranking-panel [data-challenge-ranking].is-loading { opacity: .48; pointer-events: none; }.ranking-empty { min-height: 112px!important; display: flex!important; flex-direction: column; align-items: center!important; justify-content: center; gap: 7px!important; text-align: center; color: var(--muted); }.ranking-empty b { color: var(--navy-2)!important; }.ranking-empty span { font-size: 10px; }
.ranking-table { padding: 18px 26px 26px; }.ranking-table header,.ranking-table > div { display: grid; grid-template-columns: 65px 1fr 1.6fr 110px 100px 80px; gap: 12px; align-items: center; min-height: 48px; border-bottom: 1px solid var(--line-soft); font-size: 11px; }.ranking-table--study header,.ranking-table--study > div { grid-template-columns:65px 1fr 1.6fr 150px 90px; }.ranking-table header { color: #8a969d; font-size: 9px; }.ranking-table > div b { color: var(--blue); }.ranking-table > div strong { color: var(--success); }.ranking-table > div.is-me { margin: 0 -12px; padding: 0 12px; background: #ecf7f4; border-left: 3px solid var(--teal); }
.invite-notice { margin-bottom: 20px; padding: 20px 23px; display: flex; gap: 15px; align-items: start; color: #23546b; background: #e8f4f2; border: 1px solid #c9e6e0; border-radius: 7px; }.invite-notice h3 { margin: 0 0 5px; font-size: 14px; }.invite-notice p { margin: 0; font-size: 11px; color: #657c85; }
.code-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 16px; }.code-card { min-height: 220px; padding: 25px; background: var(--paper); border: 1px solid var(--line); border-radius: 9px; position: relative; overflow: hidden; }.code-card::after { content: ""; width: 130px; height: 130px; border-radius: 50%; border: 1px solid #dbe4e6; position: absolute; right: -60px; top: -60px; }.code-card > span { color: var(--success); background: #e5f5ef; border-radius: 20px; padding: 4px 8px; font-size: 9px; }.code-card h2 { margin: 25px 0 3px; color: var(--blue); font: 25px monospace; letter-spacing: .07em; }.code-card p { margin: 0; color: var(--muted); font-size: 11px; }.code-card > div { margin: 25px 0 18px; display: flex; justify-content: space-between; color: #8b959c; font-size: 9px; }.code-card button { border: 0; border-bottom: 1px solid var(--blue); background: transparent; color: var(--blue); padding: 0 0 5px; font-size: 10px; }
.feedback-list,.admin-feedback-list { display: grid; gap: 14px; }.feedback-list article,.admin-feedback-list article { background: var(--paper); border: 1px solid var(--line); border-radius: 9px; padding: 24px; }.feedback-list article > div,.admin-feedback-list article > header { display: flex; justify-content: space-between; align-items: center; }.feedback-list small,.admin-feedback-list small { color: #89959c; font-size: 9px; }.feedback-list h2,.admin-feedback-list h2 { margin: 17px 0 8px; font-size: 15px; }.feedback-list p,.admin-feedback-list p { margin: 0; color: var(--muted); line-height: 1.7; font-size: 12px; }.feedback-list blockquote { margin: 18px 0 0; padding: 14px 17px; background: #eef6f4; border-left: 3px solid var(--teal); color: #43646c; font-size: 11px; }.feedback-list blockquote b { display: block; color: var(--success); margin-bottom: 5px; }
.status { display: inline-flex; align-items: center; width: fit-content; border-radius: 20px; padding: 4px 8px; font-size: 9px; }.status--pending { color: #966300; background: #fff3d5; }.status--processing { color: #225ca4; background: #e7f0fc; }.status--resolved { color: #08795f; background: #e4f4ef; }.status--closed { color: #6f7b83; background: #edf0f1; }
.certificate-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }.certificate-card { min-height: 350px; padding: 38px; background: #fffefa; border: 1px solid #cfd8d7; box-shadow: inset 0 0 0 8px #f5f3e9; position: relative; }.certificate-card::after { content: ""; position: absolute; inset: 13px; border: 1px solid #d6c79e; pointer-events: none; }.certificate-seal { width: 55px; height: 55px; display: grid; place-items: center; border-radius: 50%; color: #9a7b33; border: 1px solid #bda66d; font-family: serif; }.certificate-card > span { display: block; margin-top: 25px; color: #a08a58; font-size: 8px; letter-spacing: .18em; }.certificate-card h2 { margin: 8px 0; font-family: "Noto Serif SC",serif; font-size: 25px; }.certificate-card > p { color: var(--muted); }.certificate-card dl { margin: 28px 0; display: grid; grid-template-columns:1fr 1fr; }.certificate-card dt { color: #8b969d; font-size: 9px; }.certificate-card dd { margin: 5px 0 0; font-size: 11px; }
.profile-card { display: grid; grid-template-columns: 88px 1fr; gap: 22px; padding: 36px; background: var(--paper); border: 1px solid var(--line); border-radius: 9px; }.profile-avatar { width: 76px; height: 76px; display: grid; place-items: center; border-radius: 50%; color: white; background: linear-gradient(135deg,var(--blue),var(--teal)); font-size: 26px; }.profile-card > div:nth-child(2) > span { color: var(--teal); font-size: 9px; }.profile-card h2 { margin: 6px 0; font-family: "Noto Serif SC",serif; font-size: 28px; }.profile-card p { color: var(--muted); font-size: 11px; }.profile-card dl { grid-column:1/-1; display: grid; grid-template-columns: repeat(5,1fr); margin-top: 20px; border-top: 1px solid var(--line); }.profile-card dl div { padding: 22px; border-right: 1px solid var(--line); }.profile-card dl div:last-child { border:0; }.profile-card dt { color: #8b969d; font-size: 9px; }.profile-card dd { margin: 8px 0 0; font-size: 12px; }
.email-status { display: inline-flex; margin-left: 6px; padding: 3px 7px; border-radius: 20px; font-size: 9px; vertical-align: middle; }
.email-status--verified { color: var(--success); background: #e4f4ef; }.email-status--pending { color: var(--warning); background: #fff1d6; }
.email-status--disabled { color: #6f7d85; background: #edf0f1; }
.email-verification-card { margin-top: 18px; padding: 22px 25px; display: flex; align-items: center; justify-content: space-between; gap: 22px; border: 1px solid #bfd8d5; border-radius: 9px; background: linear-gradient(110deg,#f3fbf9,#f4f8fd); }
.email-verification-card > div { display: flex; align-items: center; gap: 13px; color: var(--teal); }.email-verification-card > div span { display: grid; gap: 4px; }.email-verification-card b { color: var(--navy-2); font-size: 14px; }.email-verification-card small { color: var(--muted); font-size: 10px; }
.email-verification-card form { display: grid; grid-template-columns: minmax(260px,1fr) auto; gap: 9px; align-items: center; }
.email-reset-option { margin-top: 3px; padding: 15px; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 13px; align-items: center; border: 1px solid #d8e1e5; border-radius: 8px; background: #f6f8f8; }
.email-reset-option span { display: grid; gap: 4px; }.email-reset-option b { color: var(--navy-2); font-size: 12px; }.email-reset-option small { color: var(--muted); font-size: 9px; line-height: 1.5; }
.email-reset-option > button { min-height: 38px; padding: 0 12px; border: 1px solid rgba(12,78,181,.22); border-radius: 6px; background: white; color: var(--blue); font-size: 10px; font-weight: 700; }

/* Modal / PDF */
.modal-backdrop { position: fixed; inset: 0; z-index: 100; padding: 30px; display: grid; place-items: center; background: rgba(2,16,35,.68); backdrop-filter: blur(9px); }
.modal { width: min(620px,100%); max-height: calc(100vh - 60px); overflow: hidden; background: var(--paper); border-radius: 10px; box-shadow: 0 40px 100px rgba(0,0,0,.35); display: flex; flex-direction: column; }.modal--wide { width: min(1200px,100%); height: calc(100vh - 60px); }.modal > header { min-height: 76px; padding: 15px 22px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }.modal h2 { margin: 4px 0 0; font-family: "Noto Serif SC",serif; font-size: 20px; }.modal-body { min-height: 0; overflow: auto; padding: 24px; flex: 1; }.modal--wide .modal-body { padding: 0; display: flex; flex-direction: column; }.pdf-toolbar { min-height: 49px; padding: 0 17px; display: flex; align-items: center; gap: 13px; background: #edf3f3; border-bottom: 1px solid #d6e0e0; color: #53707a; font-size: 10px; }.pdf-toolbar > span { display:flex;align-items:center;gap:6px; }.pdf-toolbar .active-study-time { color: var(--success); font-weight: 700; }.pdf-toolbar > small { margin-right:auto; color:#8a989c; }.pdf-toolbar button { border: 0; background: white; border-radius: 4px; padding: 7px 10px; color: var(--blue); font-size: 10px; display: flex; align-items: center; gap: 6px; }.pdf-frame { width: 100%; flex: 1; border: 0; background: #555; }.report-target { padding: 14px; display:grid;gap:3px; background:#eef5f4;border:1px solid #d7e8e5;border-radius:6px; }.report-target span{font-size:9px;color:#789096}.report-target strong{font-size:12px}.file-picker input{display:none}.file-picker > span{min-height:92px;display:grid;place-items:center;gap:6px;border:1px dashed #aabbbf;border-radius:7px;color:var(--blue);background:#f7fbfa}.check-line{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center!important}.check-line input{width:auto!important;min-height:auto!important}

.modal--reader { width: min(1560px,100%); }
.modal--reader > header { min-height: 62px; }
.modal--reader > header h2 { max-width: min(970px,70vw); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 17px; }
.integrated-pdf-toolbar { min-height: 54px; flex: 0 0 auto; gap: 8px; overflow-x: auto; scrollbar-width: thin; white-space: nowrap; }
.integrated-pdf-toolbar > span:first-child { margin-right: 2px; color: var(--navy-2); font-weight: 700; }
.integrated-pdf-toolbar > small { margin-right: 2px; }
.pdf-page-controls,.pdf-zoom-controls { display: inline-flex; align-items: center; gap: 3px; padding: 3px; border: 1px solid #d3dede; border-radius: 6px; background: rgba(255,255,255,.66); }
.pdf-page-controls button,.pdf-zoom-controls button { min-width: 30px; min-height: 29px; justify-content: center; padding: 0 7px; font-size: 15px; }
.pdf-page-controls label { display: flex; align-items: center; gap: 4px; padding: 0 5px; color: #78868d; }
.pdf-page-controls input { width: 39px; height: 28px; border: 1px solid #d3dcde; border-radius: 4px; background: white; text-align: center; color: var(--navy-2); font-size: 10px; }
.pdf-zoom-controls > span { min-width: 62px; text-align: center; color: #61747c; font-size: 9px; }
.pdf-selection-hint { margin-left: auto; padding: 6px 9px; border-radius: 14px; background: #ddf3ef; color: var(--success)!important; font-size: 9px; font-weight: 700; }
.pdf-translation-scope { margin-left: auto; padding: 6px 9px; border-radius: 14px; background: #e4f1f5; color: #426c7c!important; font-size: 9px; font-weight: 700; }
.pdf-overlay-button.active { background: var(--success); color: white; box-shadow: 0 5px 13px rgba(10,128,105,.2); }
.pdf-overlay-restore { color: #687980!important; background: transparent!important; border: 1px solid #cbd7d7!important; }
.pdf-overlay-restore[hidden] { display: none; }
.pdf-bilingual-button.active { background: var(--blue); color: white; }
.integrated-pdf-reader { min-height: 0; flex: 1; display: grid; grid-template-columns: minmax(0,1fr); background: #34404b; transition: grid-template-columns .24s ease; }
.integrated-pdf-reader.is-translating { grid-template-columns: minmax(390px,1fr) minmax(520px,620px); }
.integrated-pdf-reader.is-bilingual { grid-template-columns: minmax(0,1fr) minmax(0,1fr); }
.integrated-pdf-reader--single { grid-template-columns: minmax(0,1fr); }
.pdf-reader-stage { min-width: 0; min-height: 0; position: relative; overflow: auto; padding: 22px; background: radial-gradient(circle at 50% 12%,#53616d,#313c47 65%,#26313b); overscroll-behavior: contain; touch-action: pan-x pan-y; -webkit-overflow-scrolling: touch; }
.pdf-reader-stage--translation { border-left: 2px solid #7fd8cf; background: radial-gradient(circle at 50% 12%,#53666a,#324347 65%,#27383b); }
.pdf-reader-stage:focus-visible { outline: 3px solid rgba(92,216,205,.7); outline-offset: -3px; }
.pdf-pane-label { position: sticky; z-index: 7; top: -10px; width: fit-content; min-height: 29px; margin: -10px 0 12px; padding: 6px 10px; display: flex; align-items: center; gap: 8px; border: 1px solid rgba(255,255,255,.24); border-radius: 16px; background: rgba(16,35,51,.84); color: white; box-shadow: 0 6px 16px rgba(0,0,0,.18); backdrop-filter: blur(8px); pointer-events: none; }
.pdf-pane-label b { font-size: 9px; }.pdf-pane-label span { color: rgba(255,255,255,.52); font-size: 7px; letter-spacing: .08em; }.pdf-pane-label--translation { background: rgba(8,108,98,.9); }
.pdf-reader-loading { position: absolute; z-index: 5; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px; background: rgba(39,51,61,.88); color: white; backdrop-filter: blur(4px); }
.pdf-reader-loading .loader-orbit { width: 48px; height: 48px; }
.pdf-reader-loading b { font-size: 12px; }
.pdf-reader-loading small { color: rgba(255,255,255,.55); font-size: 9px; }
.pdf-page-surface { position: relative; margin: 0 auto; background: white; box-shadow: 0 20px 55px rgba(0,0,0,.34); }
.pdf-pages-continuous { min-width: 100%; display: flex; flex-direction: column; align-items: center; gap: 22px; padding-bottom: 8px; }
.pdf-pages-continuous.is-pinching { will-change: transform; }
.pdf-touch-hint { display: none; position: sticky; z-index: 8; top: 4px; width: fit-content; margin: 0 auto -30px; padding: 6px 10px; border: 1px solid rgba(255,255,255,.22); border-radius: 16px; background: rgba(14,31,46,.82); color: rgba(255,255,255,.88); font-size: 8px; pointer-events: none; backdrop-filter: blur(7px); }
.pdf-touch-hint.is-used { opacity: 0; transition: opacity .25s ease; }
.pdf-page-frame { position: relative; flex: 0 0 auto; max-width: none; background: #fff; box-shadow: 0 18px 48px rgba(0,0,0,.28); scroll-margin-top: 18px; transition: width .14s ease,height .14s ease; }
.pdf-page-frame .pdf-page-surface { margin: 0; box-shadow: none; }
.pdf-page-frame--translation { outline: 1px solid rgba(122,218,207,.36); }
.pdf-page-placeholder { position: absolute; z-index: 1; inset: 0; display: grid; place-content: center; justify-items: center; gap: 10px; background: linear-gradient(145deg,#f7f8f6,#e7eceb); color: #61727a; }
.pdf-page-placeholder[hidden] { display: none; }
.pdf-page-placeholder .loader-orbit { width: 34px; height: 34px; }
.pdf-page-placeholder small { font-size: 9px; }
.pdf-page-index { position: absolute; z-index: 4; left: -34px; top: 8px; min-width: 25px; padding: 4px 5px; border-radius: 12px; background: rgba(18,34,48,.72); color: rgba(255,255,255,.82); text-align: center; font-size: 8px; pointer-events: none; }
.pdf-page-surface canvas { display: block; background: white; }
.modal--admin-preview .modal-body { overflow: hidden; }
.admin-preview-toolbar > small { margin-right: auto; }
.admin-pdf-preview-stage { display: block; }
.admin-pdf-preview-pages { min-height: 100%; justify-content: flex-start; }
.admin-pdf-preview-page { margin-inline: auto; }
.paged-pdf-reader { min-width: 0; min-height: 0; flex: 1; position: relative; display: flex; flex-direction: column; background: #34404b; }
.paged-pdf-toolbar { flex: 0 0 auto; }
.paged-pdf-stage { display: block; }
.paged-pdf-canvas-shell { min-width: 100%; min-height: 100%; display: flex; align-items: flex-start; justify-content: center; }
.paged-pdf-page { flex: 0 0 auto; margin-inline: auto; }
.pdf-edge-nav-button { position: absolute; z-index: 12; top: 50%; width: 58px; height: 132px; display: grid; place-items: center; border: 1px solid rgba(255,255,255,.18); background: rgba(12,27,41,.22); color: rgba(255,255,255,.86); font: 300 38px/1 sans-serif; opacity: .32; transform: translateY(-40%); backdrop-filter: blur(3px); transition: opacity .18s ease,background .18s ease; cursor: pointer; }
.pdf-edge-nav-button--prev { left: 7px; border-radius: 0 22px 22px 0; }
.pdf-edge-nav-button--next { right: 7px; border-radius: 22px 0 0 22px; }
.pdf-edge-nav-button:hover,.pdf-edge-nav-button:focus-visible { opacity: .82; background: rgba(10,80,112,.54); outline: 2px solid rgba(127,216,207,.7); }
.pdf-edge-nav-button:disabled { opacity: .045; pointer-events: none; }
.pdf-navigation-hint { position: absolute; z-index: 15; left: 50%; top: 50%; min-width: 220px; padding: 15px 20px; border: 1px solid rgba(255,255,255,.23); border-radius: 12px; background: rgba(8,24,38,.88); color: white; box-shadow: 0 18px 48px rgba(0,0,0,.28); text-align: center; font-size: 12px; line-height: 1.6; opacity: 0; transform: translate(-50%,-40%); backdrop-filter: blur(10px); transition: opacity .22s ease,transform .22s ease; }
.pdf-navigation-hint small { color: rgba(255,255,255,.65); font-size: 9px; }
.pdf-navigation-hint.is-visible { opacity: 1; transform: translate(-50%,-50%); }
.pdf-navigation-hint[hidden] { display: none; }
.modal--reader:fullscreen,.modal--reader:-webkit-full-screen { width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; border-radius: 0; }
.modal--reader.is-reader-fullscreen { position: fixed; z-index: 160; inset: 0; width: 100vw; max-width: 100vw; height: 100dvh; max-height: 100dvh; border-radius: 0; }
.pdf-text-layer { color-scheme: only light; position: absolute; text-align: initial; inset: 0; overflow: clip; opacity: 1; line-height: 1; letter-spacing: normal; word-spacing: normal; -webkit-text-size-adjust: none; text-size-adjust: none; forced-color-adjust: none; transform-origin: 0 0; caret-color: CanvasText; z-index: 2; --min-font-size: 1; --text-scale-factor: calc(var(--total-scale-factor) * var(--min-font-size)); --min-font-size-inv: calc(1 / var(--min-font-size)); }
.pdf-text-layer :is(span,br) { position: absolute; color: transparent; white-space: pre; cursor: text; transform-origin: 0 0; -webkit-user-select: text; user-select: text; }
.pdf-text-layer > :not(.markedContent),.pdf-text-layer .markedContent span:not(.markedContent) { z-index: 1; --font-height: 0; --scale-x: 1; --rotate: 0deg; font-size: calc(var(--text-scale-factor) * var(--font-height)); transform: rotate(var(--rotate)) scaleX(var(--scale-x)) scale(var(--min-font-size-inv)); }
.pdf-text-layer .markedContent { display: contents; }
.pdf-text-layer span[role="img"] { cursor: default; -webkit-user-select: none; user-select: none; }
.pdf-text-layer ::selection { background: rgba(25,182,172,.34); color: transparent; }
.pdf-text-layer br::selection { background: transparent; }
.pdf-text-layer .endOfContent { position: absolute; inset: 100% 0 0; z-index: 0; display: block; cursor: default; -webkit-user-select: none; user-select: none; }
.pdf-text-layer.selecting .endOfContent { top: 0; }
.pdf-translation-overlay { position: absolute; z-index: 3; inset: 0; overflow: hidden; pointer-events: none; }
.pdf-translation-block { position: absolute; box-sizing: border-box; padding: 1px 2px; overflow: hidden; background: var(--overlay-background,#fff); color: var(--overlay-color,#163746); font-family: "Noto Sans SC","PingFang SC",sans-serif; font-weight: 500; line-height: 1.22; letter-spacing: 0; text-align: left; overflow-wrap: anywhere; }
.reader-translation-panel { min-width: 0; min-height: 0; display: flex; flex-direction: column; border-left: 1px solid #cfd9da; background: #f7f8f5; box-shadow: -12px 0 34px rgba(5,25,47,.16); }
.reader-translation-panel > header { min-height: 86px; padding: 16px 17px; display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px solid #dfe5e4; background: white; }
.reader-translation-panel > header span { color: var(--teal); font-size: 7px; font-weight: 700; letter-spacing: .16em; }
.reader-translation-panel > header h3 { margin: 3px 0 2px; color: var(--navy-2); font: 600 19px "Noto Serif SC",serif; }
.reader-translation-panel > header p { margin: 0; color: #819096; font-size: 8px; }
.reader-translation-panel > header button { width: 31px; height: 31px; border: 1px solid var(--line); border-radius: 50%; background: white; color: #6d7e86; font-size: 20px; }
.reader-translation-scroll { min-height: 0; padding: 14px; display: grid; align-content: start; gap: 12px; overflow: auto; }
.selection-translation-card,.page-translation-card { border: 1px solid #d9e1e0; border-radius: 8px; background: white; overflow: hidden; box-shadow: 0 9px 24px rgba(16,36,62,.045); }
.selection-translation-card > header,.page-translation-card > header { min-height: 45px; padding: 10px 13px; display: flex; align-items: center; justify-content: space-between; gap: 10px; border-bottom: 1px solid var(--line-soft); background: #f1f6f5; }
.selection-translation-card header b,.page-translation-card header b { display: block; color: var(--navy-2); font-size: 10px; }
.selection-translation-card header small,.page-translation-card header small { display: block; margin-top: 2px; color: #87949a; font-size: 8px; }
.selection-translation-card > header button,.page-translation-card > header button { border: 0; background: transparent; color: var(--blue); font-size: 9px; white-space: nowrap; }
.selection-translation-card > header button[hidden] { display: none; }
.selection-translation-card blockquote { max-height: 120px; margin: 0; padding: 13px; overflow: auto; border-bottom: 1px dashed #dce4e3; color: #566871; background: #fbfcfa; font: 10px/1.65 Georgia,serif; }
.selection-translation-card > p { min-height: 58px; margin: 0; padding: 13px; color: #233f4c; font-size: 11px; line-height: 1.8; white-space: pre-wrap; }
.selection-translation-card > p.is-loading,.bilingual-output p.is-loading { color: #89979b; }
.translation-view-controls { padding: 6px; display: grid; grid-template-columns: repeat(3,1fr); gap: 4px; border-bottom: 1px solid var(--line-soft); background: #f8faf9; }
.translation-view-controls button { min-height: 30px; border: 1px solid transparent; border-radius: 5px; background: transparent; color: #718087; font-size: 9px; }
.translation-view-controls button:hover { background: white; border-color: #d9e1e0; }
.translation-view-controls button.active { border-color: #b8d9d5; background: white; color: var(--success); box-shadow: 0 3px 10px rgba(21,119,105,.08); font-weight: 700; }
.bilingual-output { max-height: min(58vh,620px); min-height: 150px; display: grid; align-content: start; overflow-y: auto; overscroll-behavior: contain; scrollbar-color: #9eb5b4 #edf2f1; }
.bilingual-column-head { position: sticky; z-index: 2; top: 0; display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid #cfdcda; background: rgba(244,248,247,.96); box-shadow: 0 5px 12px rgba(9,37,52,.06); backdrop-filter: blur(8px); }
.bilingual-column-head span { padding: 8px 13px; color: #66777e; font-size: 8px; font-weight: 700; letter-spacing: .05em; }
.bilingual-column-head span:first-child { border-right: 1px solid #dbe4e2; }
.bilingual-row { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); border-bottom: 1px solid var(--line-soft); }
.bilingual-row:last-child { border-bottom: 0; }
.bilingual-cell { min-width: 0; padding: 13px 14px 15px; }
.bilingual-cell--en { border-right: 1px solid #e0e6e5; background: #fbfcfb; }
.bilingual-cell > span { display: block; margin-bottom: 7px; color: #9aa6aa; font-size: 7px; font-weight: 700; letter-spacing: .1em; }
.bilingual-cell--zh > span { color: var(--teal); }
.bilingual-output p { margin: 0; overflow-wrap: anywhere; font-size: 10px; line-height: 1.75; }
.bilingual-output p[lang="en"] { color: #52636d; font-family: Georgia,"Times New Roman",serif; }
.bilingual-output p[lang="zh-CN"] { color: #18394b; }
.bilingual-output .segment-error { color: #9b5961; }
.bilingual-output .segment-error button { display: block; margin-top: 8px; padding: 5px 8px; border: 1px solid #ecc9cd; border-radius: 4px; background: #fff7f7; color: #a13a48; font-size: 8px; }
.bilingual-output[data-view-mode="zh"] .bilingual-row,.bilingual-output[data-view-mode="en"] .bilingual-row { grid-template-columns: 1fr; }
.bilingual-output[data-view-mode="zh"] .bilingual-cell--en,.bilingual-output[data-view-mode="zh"] .bilingual-column-head--en { display: none; }
.bilingual-output[data-view-mode="en"] .bilingual-cell--zh,.bilingual-output[data-view-mode="en"] .bilingual-column-head--zh { display: none; }
.bilingual-output[data-view-mode="zh"] .bilingual-column-head,.bilingual-output[data-view-mode="en"] .bilingual-column-head { grid-template-columns: 1fr; }
.bilingual-output[data-view-mode="zh"] .bilingual-cell--zh,.bilingual-output[data-view-mode="en"] .bilingual-cell--en { border-right: 0; }
.translation-empty { min-height: 125px; padding: 26px 19px; display: grid; place-items: center; text-align: center; color: #849298; font-size: 9px; line-height: 1.7; }
.reader-translation-panel > footer { padding: 11px 14px; border-top: 1px solid #dde4e3; background: #fff9ed; color: #807151; font-size: 8px; line-height: 1.65; }

/* Admin */
.admin-auth-bg { background: var(--navy); }.admin-auth { min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr;background:linear-gradient(135deg,#061b38,#0a4778 55%,#0a8177);color:white }.admin-auth > section{padding:12vh 8vw;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}.admin-auth > section::after{content:"";position:absolute;width:650px;height:650px;border-radius:50%;border:1px solid rgba(255,255,255,.16);right:-290px;top:5%;box-shadow:0 0 0 65px rgba(255,255,255,.02),0 0 0 130px rgba(255,255,255,.015)}.admin-auth > section p{color:#80ded5;font-size:10px;letter-spacing:.2em}.admin-auth > section h1{margin:18px 0;font:600 clamp(48px,5.5vw,80px)/1.35 "Noto Serif SC",serif}.admin-auth > section span{color:rgba(255,255,255,.55)}.admin-auth form{background:var(--paper);color:var(--ink);padding:10vh clamp(45px,7vw,100px);display:flex;flex-direction:column;justify-content:center;gap:17px}.admin-auth form>div{position:absolute;top:35px}.admin-auth form>span{margin-top:45px}.admin-auth form h2{margin:0 0 15px;font:600 35px "Noto Serif SC",serif}.admin-auth form label{display:grid;gap:8px;font-size:11px;color:#435468}.admin-auth form input{min-height:49px;border:1px solid #cdd7da;border-radius:6px;padding:10px}.admin-auth form .back-button{align-self:flex-start}
.admin-body-bg{background:#f2f4f3}.admin-shell{min-height:100vh;display:grid;grid-template-columns:218px 1fr;grid-template-rows:68px 1fr}.admin-header{grid-column:1/-1;display:flex;align-items:center;justify-content:space-between;padding:0 25px;background:var(--navy);color:white;position:sticky;top:0;z-index:20}.admin-header>div{display:flex;align-items:center;gap:22px}.admin-header>div span{color:rgba(255,255,255,.35);font-size:8px;letter-spacing:.18em}.admin-header>div button{border:0;background:transparent;color:rgba(255,255,255,.65);display:flex;align-items:center;gap:6px}.admin-sidebar{grid-row:2;background:var(--paper);border-right:1px solid var(--line);padding:29px 15px 20px;position:sticky;top:68px;height:calc(100vh - 68px);display:flex;flex-direction:column}.admin-sidebar>p{margin:0 12px 17px;color:#9aa5ab;font-size:9px;letter-spacing:.12em}.admin-sidebar nav{display:grid;gap:4px}.admin-sidebar nav button{min-height:42px;border:0;border-radius:5px;background:transparent;color:#647283;display:flex;align-items:center;gap:11px;padding:0 12px;text-align:left;font-size:12px}.admin-sidebar nav button.active{color:var(--blue);background:#edf3fc;box-shadow:inset 3px 0 var(--blue);font-weight:700}.admin-sidebar>small{margin-top:auto;padding:15px 11px;border-top:1px solid var(--line);color:#9ba5ab;font-size:8px;line-height:1.8}.admin-main{grid-column:2;grid-row:2;padding:40px clamp(25px,3.5vw,52px) 80px;min-width:0}.admin-page-heading{margin-bottom:28px}.heading-actions{display:flex;gap:7px}.admin-metrics{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;margin-bottom:17px}.admin-metrics article{min-height:130px;padding:21px;background:var(--paper);border:1px solid var(--line);border-radius:7px;display:flex;flex-direction:column}.admin-metrics span{color:var(--muted);font-size:10px}.admin-metrics strong{margin-top:auto;color:var(--navy-2);font:32px "Noto Serif SC",serif}.admin-metrics small{color:#a0abb1;font-size:7px;letter-spacing:.14em}.admin-panel{background:var(--paper);border:1px solid var(--line);border-radius:8px;padding:20px}.admin-panel>header{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px}.admin-panel>header h2{margin:0;font-size:16px}.admin-panel>header button{border:0;background:transparent;color:var(--blue);font-size:10px}.admin-table{overflow:auto}.admin-table table{width:100%;border-collapse:collapse;min-width:780px}.admin-table th{text-align:left;color:#8d989f;font-size:9px;font-weight:600;padding:10px 12px;border-bottom:1px solid var(--line)}.admin-table td{padding:14px 12px;border-bottom:1px solid var(--line-soft);font-size:11px;vertical-align:middle}.admin-table td b{display:block}.admin-table td small{display:block;margin-top:4px;color:#89949b;font-size:8px}.admin-table code{color:var(--blue);background:#edf3fb;border-radius:3px;padding:4px 6px}.admin-table a{color:var(--blue)}.table-action,.table-actions button{border:0;background:transparent;color:var(--blue);font-size:10px;padding:4px}.table-actions{display:flex;gap:6px}.question-cell{max-width:420px;line-height:1.6}.category-summary{display:flex;gap:7px;flex-wrap:wrap;margin-bottom:18px}.category-summary span{padding:6px 10px;background:var(--paper);border:1px solid var(--line);border-radius:20px;color:#6e7b84;font-size:9px}.category-summary b{color:var(--blue)}.paper-rules{display:grid;gap:9px;padding:15px;background:#f4f7f6;border:1px solid var(--line);border-radius:6px}.paper-rules>span{font-size:10px;color:var(--muted)}.paper-rules>div{display:grid;grid-template-columns:1fr 80px 1fr;align-items:center;gap:9px}.paper-rules input{min-height:35px}.paper-rules small{color:#7f8c94}.admin-feedback-list article form{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);display:grid;grid-template-columns:150px 1fr 130px;gap:10px;align-items:start}.admin-feedback-list select,.admin-feedback-list textarea{border:1px solid #cfd8da;border-radius:5px;padding:9px}.admin-feedback-list button{min-height:39px;font-size:10px}

.grant-summary{display:grid;gap:5px;padding:14px 16px;background:#edf5f4;border:1px solid #d6e7e4;border-radius:6px}.grant-summary b{font-size:13px}.grant-summary span{color:#6e8188;font-size:10px}.grant-list{max-height:360px;overflow:auto;border:1px solid var(--line);border-radius:6px;background:white}.grant-list label{min-height:58px;padding:10px 14px;display:flex;align-items:center;gap:11px;border-bottom:1px solid var(--line-soft);cursor:pointer}.grant-list label:last-child{border-bottom:0}.grant-list label:hover{background:#f6faf9}.grant-list input{width:16px!important;min-height:auto!important;accent-color:var(--teal)}.grant-list span{display:grid;gap:3px}.grant-list b{font-size:11px}.grant-list small{color:#86939a;font-size:9px}

/* Profile, question bank, attempt review and roles */
.profile-editor-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.profile-editor>header>div>span{color:var(--teal);font-size:8px;letter-spacing:.16em}.profile-editor>header h2{margin:5px 0 0;font:600 19px "Noto Serif SC",serif}.profile-editor .modal-form{margin-top:18px}.profile-editor .button{justify-self:start}

@media (max-width: 720px) {
  .auth-panel > .back-button { left: 24px; }
  .email-code-control { grid-template-columns: minmax(0,1fr) 105px; }
  .email-verification-card { align-items: stretch; flex-direction: column; }
  .email-verification-card form { grid-template-columns: 1fr; }
  .email-verification-card form > .button { width: 100%; }
  .email-reset-option { grid-template-columns: 1fr; }.email-reset-option > button { width: 100%; }
}
.attempt-history{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}.attempt-history>article{min-height:235px;padding:24px;background:var(--paper);border:1px solid var(--line);border-radius:9px;display:flex;flex-direction:column}.attempt-history>article>div{display:flex;justify-content:space-between;align-items:center}.attempt-history>article>div small{color:var(--muted);font-size:9px}.attempt-history h2{margin:20px 0 7px;font:600 19px/1.5 "Noto Serif SC",serif}.attempt-history p{margin:0;color:var(--muted);font-size:10px}.attempt-history>article>strong{margin:20px 0 14px;color:var(--blue);font:34px "Noto Serif SC",serif}.attempt-history>article>strong small{color:var(--muted);font:11px "Noto Sans SC",sans-serif}.attempt-history .button{margin-top:auto;width:fit-content;font-size:10px}
.challenge-history-summary { min-height: 118px; margin-bottom: 18px; padding: 21px 24px; display: flex; align-items: center; justify-content: space-between; gap: 24px; overflow: hidden; position: relative; border: 1px solid #b9ddd7; border-radius: 10px; background: linear-gradient(120deg,#eff9f6,#f8fbfa); }
.challenge-history-summary::after { content: ""; width: 180px; height: 180px; position: absolute; right: -68px; top: -86px; border: 1px solid rgba(18,153,135,.14); border-radius: 50%; box-shadow: 0 0 0 30px rgba(18,153,135,.025); pointer-events: none; }
.challenge-history-summary > div { min-width: 0; position: relative; z-index: 1; display: grid; grid-template-columns: auto minmax(0,1fr); gap: 2px 11px; }
.challenge-history-summary svg { grid-row: 1 / span 3; margin-top: 4px; color: var(--teal); }
.challenge-history-summary span { color: var(--teal); font-size: 7px; letter-spacing: .15em; }
.challenge-history-summary h2 { margin: 2px 0; color: var(--navy-2); font: 600 19px "Noto Serif SC",serif; }
.challenge-history-summary p { margin: 0; color: var(--muted); font-size: 9px; }
.challenge-history-summary p b { color: var(--success); }
.challenge-history-summary > .button { flex: 0 0 auto; position: relative; z-index: 1; }
.admin-section-heading { min-height: 98px; padding: 25px 4px 13px; display: flex; align-items: end; justify-content: space-between; gap: 20px; }
.admin-section-heading span { color: var(--teal); font-size: 7px; letter-spacing: .16em; }
.admin-section-heading h2 { margin: 5px 0 2px; color: var(--navy-2); font: 600 22px "Noto Serif SC",serif; }
.admin-section-heading p { margin: 0; color: var(--muted); font-size: 9px; }
.admin-section-heading > b { color: var(--blue); font: 22px "Noto Serif SC",serif; }
.attempt-result-summary{padding:18px 22px;display:grid;grid-template-columns:1.1fr .7fr .7fr 1.4fr;gap:1px;background:#e5eaeb;border-bottom:1px solid var(--line)}.attempt-result-summary>div{min-height:82px;padding:15px 18px;background:var(--paper);display:flex;flex-direction:column;justify-content:center;gap:5px}.attempt-result-summary span{color:var(--muted);font-size:9px}.attempt-result-summary strong{color:var(--blue);font:28px "Noto Serif SC",serif}.attempt-result-summary strong small{color:var(--muted);font:11px "Noto Sans SC",sans-serif}.attempt-result-summary b{font-size:12px}.attempt-review-list{padding:20px;display:grid;gap:14px;overflow:auto}.attempt-review{padding:22px;background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--success);border-radius:7px}.attempt-review.is-wrong{border-left-color:var(--danger)}.attempt-review>header{display:flex;align-items:center;justify-content:space-between;gap:16px}.attempt-review>header>div{display:flex;align-items:center;gap:7px}.attempt-review>header span{font-weight:700;font-size:11px}.attempt-review>header i{font-style:normal;padding:4px 8px;border-radius:12px;background:#edf2f4;color:#61717c;font-size:8px}.attempt-review>header>b{color:var(--success);font-size:10px}.attempt-review.is-wrong>header>b{color:var(--danger)}.attempt-review h3{margin:18px 0;font-size:15px;line-height:1.65}.review-options{list-style:none;margin:0;padding:0;display:grid;gap:7px}.review-options li{min-height:44px;padding:9px 12px;border:1px solid var(--line);border-radius:5px;display:grid;grid-template-columns:28px 1fr auto;align-items:center;gap:8px}.review-options li>span{width:25px;height:25px;border-radius:50%;display:grid;place-items:center;background:#eef2f3;color:#66757e;font-size:9px}.review-options li p{margin:0;font-size:11px}.review-options li b{color:var(--muted);font-size:8px}.review-options li.is-selected{border-color:#c5d2d8;background:#f4f7f8}.review-options li.is-expected{border-color:#83cfc1;background:#eef9f6}.review-options li.is-expected>span{background:var(--success);color:white}.answer-comparison{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:14px}.answer-comparison p{margin:0;padding:11px;background:#f3f6f6;border-radius:5px;display:grid;gap:4px}.answer-comparison span{color:var(--muted);font-size:8px}.answer-comparison b{font-size:10px;line-height:1.5}.answer-explanation{margin-top:12px;padding:14px 16px;background:#edf4fb;border:1px solid #d9e6f4;border-radius:6px}.answer-explanation>b{display:flex;align-items:center;gap:6px;color:var(--blue);font-size:10px}.answer-explanation p{margin:7px 0 0;color:#526477;font-size:10px;line-height:1.7}
.attempt-review-toolbar{min-height:62px;padding:10px 22px;display:flex;align-items:center;justify-content:space-between;gap:18px;background:var(--paper);border-bottom:1px solid var(--line)}.attempt-review-toolbar>div:first-child{display:grid;gap:4px}.attempt-review-toolbar>div:first-child>b{font-size:12px}.attempt-review-toolbar>div:first-child>span{color:var(--muted);font-size:9px}.review-filter-group{padding:3px;display:flex;gap:3px;border:1px solid var(--line);border-radius:7px;background:#f2f5f5}.review-filter-group button{min-height:34px;padding:0 12px;border:0;border-radius:5px;background:transparent;color:#66757d;font-size:10px}.review-filter-group button b{margin-left:4px;color:inherit}.review-filter-group button.active{background:var(--blue);color:white;box-shadow:0 5px 12px rgba(12,78,181,.18)}.attempt-wrong-empty{min-height:280px;padding:45px 20px;place-items:center;text-align:center;color:var(--success);background:var(--paper);border:1px solid var(--line);border-radius:8px}.attempt-wrong-empty:not([hidden]){display:grid}.attempt-wrong-empty h3{margin:10px 0 0;font:600 22px "Noto Serif SC",serif}.attempt-wrong-empty p{margin:0;color:var(--muted);font-size:11px}
.category-summary button{min-height:31px;padding:0 11px;background:var(--paper);border:1px solid var(--line);border-radius:20px;color:#6e7b84;font-size:9px}.category-summary button.active{color:white;background:var(--blue);border-color:var(--blue)}.category-summary button.active b{color:white}.question-filter-bar{display:grid;grid-template-columns:minmax(220px,1fr) 150px 190px auto;gap:10px;align-items:end;margin-bottom:13px}.question-filter-bar label{display:grid;gap:5px;color:var(--muted);font-size:8px}.question-filter-bar input,.question-filter-bar select{min-height:39px;padding:8px 10px;border:1px solid var(--line);border-radius:5px;background:white;color:var(--ink)}.question-filter-bar>span{padding-bottom:10px;color:var(--muted);font-size:9px}.question-bulk-bar{min-height:46px;margin:0 -20px;padding:8px 20px;display:flex;align-items:center;gap:10px;background:#edf3fb;border-top:1px solid #dce7f4;border-bottom:1px solid #dce7f4}.question-bulk-bar b{margin-right:auto;color:var(--blue);font-size:10px}.question-bulk-bar button{border:1px solid #bfd0e7;background:white;color:var(--blue);border-radius:4px;padding:6px 9px;font-size:9px}.question-bank-panel>#questionTable{margin:0 -20px -20px}.question-bank-panel>#questionTable .admin-table{border-top:1px solid var(--line)}.question-category-tag{display:inline-block;white-space:nowrap;padding:4px 7px;border-radius:12px;background:#eaf6f3;color:#147d70;font-size:8px}.question-cell>b{font-size:11px;font-weight:600}.question-cell>small{max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.question-bank-panel .table-actions button:disabled{color:#9aa5ab;cursor:not-allowed}.import-note,.permission-note{padding:13px 15px;background:#edf4fb;border:1px solid #d8e5f3;border-radius:6px}.import-note b{font-size:11px}.import-note p{margin:5px 0 0;color:#5e7184;font-size:9px;line-height:1.6}.permission-note{color:#5e7184;font-size:9px;line-height:1.6}
.permission-levels{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:17px}.permission-levels article{min-height:145px;padding:23px;background:linear-gradient(135deg,#082b52,#0b5489);color:white;border-radius:8px}.permission-levels article:last-child{background:var(--paper);color:var(--ink);border:1px solid var(--line)}.permission-levels span{color:#7bded4;font-size:8px;letter-spacing:.16em}.permission-levels article:last-child span{color:var(--blue)}.permission-levels h2{margin:12px 0 7px;font:600 20px "Noto Serif SC",serif}.permission-levels p{margin:0;color:rgba(255,255,255,.6);font-size:10px;line-height:1.7}.permission-levels article:last-child p{color:var(--muted)}.admin-role{display:inline-block;padding:5px 8px;border-radius:14px;font-size:8px;background:#edf2f4;color:#5c6d78}.admin-role--super{background:#e7f4f1;color:var(--success)}

/* Exam */
.exam-body-bg{background:#edf1f0}.exam-landing{min-height:100vh;background:linear-gradient(135deg,#061b38,#0b4f84 65%,#0a8076);color:white}.exam-landing>header{height:74px;padding:0 34px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.14)}.exam-landing>header button{border:0;background:transparent;color:rgba(255,255,255,.6)}.exam-landing>section{width:min(780px,calc(100% - 48px));margin:auto;padding:100px 0}.exam-landing>section>span{color:#83ddd4;font-size:9px;letter-spacing:.2em}.exam-landing h1{margin:12px 0;font:600 clamp(38px,5vw,60px) "Noto Serif SC",serif}.exam-landing section>p{color:rgba(255,255,255,.6);line-height:1.8}.exam-landing section>div{margin:45px 0 35px;display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}.exam-landing article{padding:23px;border-right:1px solid rgba(255,255,255,.2);display:flex;flex-direction:column}.exam-landing article:last-child{border:0}.exam-landing article strong{font:30px "Noto Serif SC",serif}.exam-landing article small{color:rgba(255,255,255,.45)}.exam-landing ul{color:rgba(255,255,255,.62);line-height:2;font-size:12px}.exam-shell{min-height:100vh;display:grid;grid-template-columns:200px 1fr;grid-template-rows:68px 1fr}.exam-header{grid-column:1/-1;height:68px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:0 26px;position:sticky;top:0;z-index:20}.exam-header>div{display:flex;align-items:center;gap:20px}.exam-header span{color:rgba(255,255,255,.58);font-size:11px}.exam-header strong{color:#83ddd4;font:24px monospace}.exam-header>div button{border:1px solid rgba(255,255,255,.35);background:transparent;color:white;border-radius:5px;padding:8px 12px}.exam-progress{grid-row:2;position:sticky;top:68px;height:calc(100vh - 68px);padding:27px 17px;background:var(--paper);border-right:1px solid var(--line)}.exam-progress>span{color:var(--muted);font-size:10px}.question-map{margin:17px 0;display:grid;grid-template-columns:repeat(5,1fr);gap:5px}.question-map button{aspect-ratio:1;border:1px solid var(--line);border-radius:4px;background:white;color:#72808a;font-size:9px}.question-map button.done{background:var(--teal);border-color:var(--teal);color:white}.exam-progress small{color:#8b969d}.exam-paper{width:min(890px,calc(100% - 50px));margin:0 auto;padding:45px 0 90px}.paper-intro{margin-bottom:30px}.paper-intro span{color:var(--teal);font-size:9px;letter-spacing:.18em}.paper-intro h1{margin:7px 0;font:600 32px "Noto Serif SC",serif}.paper-intro p{color:var(--muted);font-size:11px}.question-card{scroll-margin-top:90px;margin-bottom:15px;padding:26px 29px;background:var(--paper);border:1px solid var(--line);border-radius:8px}.question-card>header{display:flex;justify-content:space-between;align-items:center}.question-card>header>div{display:flex;align-items:center;gap:9px}.question-card>header>div span{color:#9da8ae;font:20px serif}.question-card>header i{font-style:normal;color:var(--blue);background:#eaf1fb;border-radius:16px;padding:4px 8px;font-size:9px}.question-card>header small{color:#8b969d}.question-card>header button{border:0;background:transparent;color:#8a959d;display:flex;align-items:center;gap:5px;font-size:9px}.question-card h2{margin:24px 0 19px;font-size:16px;line-height:1.65}.question-options{display:grid;gap:9px}.option{min-height:52px;border:1px solid var(--line);border-radius:6px;padding:10px 14px;display:grid;grid-template-columns:auto 34px 1fr;align-items:center;gap:9px;color:#4c5d6d;cursor:pointer}.option:hover{border-color:#a8bec5;background:#f7fbfa}.option:has(input:checked){border-color:var(--teal);background:#edf9f6}.option input{width:15px;height:15px;accent-color:var(--teal)}.option span{width:28px;height:28px;border-radius:50%;display:grid;place-items:center;background:#edf1f2;color:#647680;font-size:10px}.option b{font-size:12px;font-weight:500}.text-answer{width:100%;min-height:50px;border:1px solid var(--line);border-radius:6px;padding:12px;resize:vertical}.final-submit{width:100%;min-height:58px}.exam-result-page{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:linear-gradient(145deg,#061b38,#0a4879);color:white}.result-orbit{width:210px;height:210px;border-radius:50%;display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid rgba(255,255,255,.25);box-shadow:0 0 0 28px rgba(255,255,255,.025),0 0 0 57px rgba(255,255,255,.018)}.result-orbit strong{font:58px "Noto Serif SC",serif;color:#89e2d9}.result-orbit span{color:rgba(255,255,255,.48)}.exam-result-page>p:first-of-type{margin-top:65px;color:#83ddd4;font-size:9px;letter-spacing:.2em}.exam-result-page h1{margin:5px;font:42px "Noto Serif SC",serif}.exam-result-page>p:last-of-type{color:rgba(255,255,255,.55)}.exam-result-page>div:last-child{display:flex;gap:9px;margin-top:25px}

/* Utilities */
.loading-screen,.content-loading{min-height:70vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;color:#6f808b}.loader-orbit{width:55px;height:55px;position:relative;animation:spin 3s linear infinite}.loader-orbit i{position:absolute;width:13px;height:17px;border-radius:50%;background:var(--teal);transform:rotate(30deg)}.loader-orbit i:nth-child(1){left:2px;top:17px}.loader-orbit i:nth-child(2){left:22px;top:2px;background:var(--blue)}.loader-orbit i:nth-child(3){right:0;bottom:5px}.empty-state{grid-column:1/-1;min-height:260px;padding:45px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;color:var(--muted);background:var(--paper);border:1px dashed #cbd6d8;border-radius:8px}.empty-state>span{color:var(--blue);font-weight:800}.empty-state h2{margin:10px 0 6px;color:var(--ink);font:22px "Noto Serif SC",serif}.empty-state p{margin:0}.full-height{min-height:100vh}.toast{position:fixed;right:24px;bottom:24px;z-index:200;max-width:430px;min-height:50px;padding:11px 16px;border-radius:7px;background:var(--navy);color:white;display:flex;align-items:center;gap:10px;box-shadow:0 18px 45px rgba(0,0,0,.28);font-size:12px;animation:toast-in .25s ease both}.toast--error{background:#8f2e3b}@keyframes toast-in{from{transform:translateY(12px);opacity:0}} 

@media (max-width: 1100px) {
  .public-header { grid-template-columns:1fr auto; }.public-header nav{display:none}.academy-hero{grid-template-columns:1fr;}.hero-copy{padding-right:35%;}.hero-copy h1{width:min(760px,90vw)}.hero-lab{position:absolute;inset:0 0 0 42%;opacity:.55}.metrics-strip{padding:0 25px}.domain-section{padding-inline:40px}.domain-intro{grid-template-columns:1fr;gap:24px}.path-grid{grid-template-columns:repeat(2,1fr)}.material-grid{grid-template-columns:repeat(2,1fr)}.admin-metrics{grid-template-columns:repeat(3,1fr)}.float-card--b{right:8vw}.auth-shell{grid-template-columns:48% 52%}.dashboard-grid{grid-template-columns:1fr}.code-grid{grid-template-columns:repeat(2,1fr)}.attempt-history{grid-template-columns:repeat(2,1fr)}.question-filter-bar{grid-template-columns:1fr 140px 170px}.question-filter-bar>span{grid-column:1/-1;padding:0}
}

@media (max-width: 760px) {
  .public-header{height:72px;padding:0 10px}.public-header .brand-company-logo{width:92px;padding:4px 5px}.public-header .brand-divider,.public-header .brand-copy{display:none}.header-actions .button--ghost{display:none}.header-actions .button{font-size:10px;padding:0 9px}.academy-hero{min-height:820px}.hero-copy{padding:80px 22px 120px}.hero-copy h1{width:100%;font-size:42px;line-height:1.35}.hero-lead{width:100%;font-size:14px}.hero-actions{flex-direction:column}.hero-actions .button{width:100%}.hero-trust{gap:10px;flex-direction:column}.hero-lab{inset:auto -110px -15px 75px;height:380px;min-height:0;opacity:.28}.glass-console{width:330px;right:0;top:42px;transform:scale(.74)}.float-card{display:none}.hero-index{display:none}.metrics-strip{grid-template-columns:1fr 1fr;padding:0}.metrics-strip>div{min-height:95px;padding:15px 25px}.metrics-strip strong{font-size:28px}.domain-section{padding:72px 20px 80px}.domain-intro{margin-bottom:34px}.domain-intro h2{font-size:36px}.domain-map{grid-template-columns:repeat(2,minmax(0,1fr));grid-auto-rows:minmax(175px,auto)}.domain-card{padding:22px 18px}.domain-card--core{grid-column:span 2;min-height:370px}.domain-card--wide{grid-column:span 2}.domain-orbit{width:205px;height:205px}.domain-orbit::before,.domain-orbit::after{width:275px;height:110px}.domain-orbit strong{font-size:50px}.domain-card--core footer{left:20px;right:20px;bottom:20px;display:grid;gap:6px}.domain-card>small{left:18px}.domain-card--clinical>b{margin-bottom:24px}.path-section{padding:70px 20px}.path-grid{grid-template-columns:1fr}.path-grid article{min-height:240px;border-left:1px solid var(--line)}.audience-section{grid-template-columns:1fr}.audience-card{min-height:500px;padding:55px 25px}.audience-card h2{font-size:38px}.public-footer{grid-template-columns:1fr;gap:12px;text-align:center}.public-footer>span{justify-self:center}.auth-shell{grid-template-columns:1fr}.auth-visual{display:none}.auth-panel{padding:70px 24px 35px}.auth-panel>.back-button{top:18px}.form-row{grid-template-columns:1fr}.portal-shell{grid-template-columns:1fr;grid-template-rows:65px 1fr}.portal-header{height:65px;padding:0 8px}.portal-header .brand-company-logo{width:92px}.portal-header .brand-divider,.portal-header .brand-copy{display:none}.portal-user .role-badge,.portal-user>div small{display:none}.portal-user>div{min-width:auto}.portal-sidebar{position:fixed;z-index:30;left:0;right:0;bottom:0;top:auto;height:64px;padding:0;background:var(--navy);overflow-x:auto}.portal-sidebar>p,.sidebar-help,.portal-sidebar nav button span{display:none}.portal-sidebar nav{height:100%;display:flex;min-width:max-content}.portal-sidebar nav button{flex:0 0 58px;height:100%;justify-content:center;border-radius:0;padding:0}.portal-sidebar nav button.active{box-shadow:inset 0 3px var(--teal)}.portal-main{grid-column:1;grid-row:2;padding:30px 17px 95px}.page-heading,.admin-page-heading{align-items:flex-start;flex-direction:column}.overview-hero{padding:30px 25px}.progress-ring{width:95px;height:95px}.metric-cards{grid-template-columns:1fr 1fr}.material-grid{grid-template-columns:1fr}.exam-card{grid-template-columns:30px 1fr;padding:21px}.exam-result{grid-column:2;align-items:flex-start;margin-top:12px}.attempt-history{grid-template-columns:1fr}.ranking-podium{gap:10px;padding:25px 8px}.ranking-podium article{width:105px}.ranking-table{padding:10px;overflow:auto}.ranking-table header,.ranking-table>div{min-width:650px}.code-grid,.certificate-grid{grid-template-columns:1fr}.profile-card dl{grid-template-columns:1fr 1fr}.profile-editor-grid,.permission-levels{grid-template-columns:1fr}.modal-backdrop{padding:8px}.modal--wide{height:calc(100vh - 16px)}.pdf-toolbar{overflow:auto;white-space:nowrap}.attempt-result-summary{grid-template-columns:1fr 1fr;padding:10px}.attempt-review-list{padding:10px}.attempt-review{padding:16px}.attempt-review>header{align-items:flex-start;flex-direction:column}.answer-comparison{grid-template-columns:1fr}.admin-auth{grid-template-columns:1fr}.admin-auth>section{display:none}.admin-auth form{min-height:100vh;padding:70px 24px}.admin-shell{grid-template-columns:1fr;grid-template-rows:62px 1fr}.admin-header{height:62px;padding:0 8px}.admin-header .brand-company-logo{width:88px}.admin-header .brand-divider,.admin-header .brand-copy{display:none}.admin-header>div span{display:none}.admin-sidebar{position:fixed;z-index:30;left:0;right:0;bottom:0;top:auto;height:62px;padding:0;overflow-x:auto}.admin-sidebar>p,.admin-sidebar>small{display:none}.admin-sidebar nav{height:100%;display:flex;min-width:max-content}.admin-sidebar nav button{flex:0 0 62px;justify-content:center;padding:0;font-size:0}.admin-sidebar nav button svg{width:20px;height:20px}.admin-sidebar nav button.active{box-shadow:inset 0 3px var(--blue)}.admin-main{grid-column:1;grid-row:2;padding:28px 15px 90px}.admin-metrics{grid-template-columns:1fr 1fr}.heading-actions{width:100%;flex-wrap:wrap}.heading-actions .button{flex:1;min-width:115px}.question-filter-bar{grid-template-columns:1fr}.question-filter-bar>span{grid-column:auto}.question-bulk-bar{align-items:flex-start;flex-wrap:wrap}.question-bulk-bar b{width:100%}.admin-feedback-list article form{grid-template-columns:1fr}.exam-shell{grid-template-columns:1fr;grid-template-rows:62px 1fr}.exam-header{height:62px;padding:0 8px}.exam-header .brand-company-logo{width:86px}.exam-header .brand-divider,.exam-header .brand-copy{display:none}.exam-header span{display:none}.exam-progress{display:none}.exam-paper{width:calc(100% - 24px);padding:30px 0 70px}.question-card{padding:20px 16px}.question-card>header{align-items:flex-start}.question-card>header button{font-size:0}.option{grid-template-columns:auto 30px 1fr}.exam-landing>section{padding:65px 0}.exam-landing section>div{grid-template-columns:1fr}.exam-landing article{border-right:0;border-bottom:1px solid rgba(255,255,255,.2)}
}

@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { scroll-behavior:auto!important; animation-duration:.01ms!important; animation-iteration-count:1!important; transition-duration:.01ms!important; }
}

/* Learner-controlled leaderboard privacy */
.ranking-privacy-note {
  margin-bottom: 16px;
  padding: 14px 17px;
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid #cfe3df;
  border-radius: 8px;
  background: #f0f8f6;
  color: var(--teal);
}
.ranking-privacy-note > div { min-width: 0; display: grid; gap: 3px; }
.ranking-privacy-note b { color: var(--navy-2); font-size: 11px; }
.ranking-privacy-note span { color: var(--muted); font-size: 9px; line-height: 1.55; }
.ranking-privacy-note button {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid rgba(12,78,181,.2);
  border-radius: 18px;
  background: var(--paper);
  color: var(--blue);
  font-size: 9px;
  font-weight: 700;
}
.ranking-podium article.is-anonymous > div { background: rgba(130,213,204,.2); border-color: rgba(151,230,222,.62); }
.ranking-table > div.is-anonymous > span:nth-child(2) { color: var(--teal); font-weight: 700; }

.profile-privacy-card {
  margin-top: 18px;
  padding: 22px 25px;
  display: grid;
  grid-template-columns: auto minmax(0,1fr) auto;
  align-items: center;
  gap: 16px;
  border: 1px solid #cfe3df;
  border-radius: 9px;
  background: linear-gradient(110deg,#f3fbf9,#f5f8fd);
}
.profile-privacy-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #e1f3ef;
  color: var(--teal);
}
.profile-privacy-copy { min-width: 0; }
.profile-privacy-copy > span { color: var(--teal); font-size: 8px; letter-spacing: .14em; }
.profile-privacy-copy h2 { margin: 4px 0 5px; color: var(--navy-2); font: 600 17px "Noto Serif SC",serif; }
.profile-privacy-copy p { max-width: 720px; margin: 0; color: var(--muted); font-size: 10px; line-height: 1.65; }
.profile-privacy-switch {
  min-width: 112px;
  display: grid;
  grid-template-columns: 46px 1fr;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.profile-privacy-switch input { position: absolute; opacity: 0; pointer-events: none; }
.profile-privacy-switch i { position: relative; width: 46px; height: 26px; border-radius: 15px; background: #c8d2d6; transition: .2s; }
.profile-privacy-switch i::after { content: ""; position: absolute; width: 20px; height: 20px; left: 3px; top: 3px; border-radius: 50%; background: white; box-shadow: 0 2px 6px rgba(0,0,0,.18); transition: .2s; }
.profile-privacy-switch input:checked + i { background: var(--success); }
.profile-privacy-switch input:checked + i::after { transform: translateX(20px); }
.profile-privacy-switch input:focus-visible + i { outline: 3px solid rgba(12,78,181,.2); outline-offset: 3px; }
.profile-privacy-switch input:disabled + i { opacity: .55; }
.profile-privacy-switch b { color: var(--navy-2); font-size: 9px; white-space: nowrap; }

:root[data-theme="dark"] .ranking-privacy-note,
:root[data-theme="dark"] .profile-privacy-card { background: #102a2b; border-color: #2b6864; }
:root[data-theme="dark"] .ranking-privacy-note b,
:root[data-theme="dark"] .profile-privacy-copy h2,
:root[data-theme="dark"] .profile-privacy-switch b { color: var(--ink); }
:root[data-theme="dark"] .profile-privacy-icon { background: #163b39; }

@media (max-width: 720px) {
  .ranking-privacy-note { grid-template-columns: auto minmax(0,1fr); }
  .ranking-privacy-note button { grid-column: 1 / -1; width: 100%; }
  .profile-privacy-card { padding: 18px; grid-template-columns: auto minmax(0,1fr); align-items: start; }
  .profile-privacy-switch { grid-column: 1 / -1; min-width: 0; padding-top: 12px; border-top: 1px solid var(--line); }
}

/* Material category policy and attempt controls */
.material-category-control{margin-bottom:16px}.material-category-control>header{align-items:flex-start}.material-category-control>header div p{margin:5px 0 0;color:var(--muted);font-size:10px;line-height:1.6}.material-admin-filter{display:grid;grid-template-columns:minmax(220px,320px) 1fr;gap:16px;align-items:end;margin-bottom:16px}.material-admin-filter label{display:grid;gap:6px;color:var(--muted);font-size:9px}.material-admin-filter select{min-height:40px;padding:8px 10px;border:1px solid var(--line);border-radius:5px;background:white;color:var(--ink)}.material-admin-filter span{padding-bottom:10px;color:var(--muted);font-size:9px}.material-policy-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.material-policy-card{min-height:88px;padding:14px;border:1px solid var(--line);border-radius:7px;background:#f8faf9;display:grid;grid-template-columns:1fr auto;gap:8px;align-items:center}.material-policy-card b{display:block;color:var(--navy-2);font-size:11px}.material-policy-card small{display:block;margin-top:4px;color:var(--muted);font-size:8px}.policy-switch{position:relative;width:42px;height:24px;display:block}.policy-switch input{position:absolute;opacity:0;pointer-events:none}.policy-switch i{position:absolute;inset:0;border-radius:15px;background:#cbd4d7;transition:.2s}.policy-switch i::after{content:"";position:absolute;width:18px;height:18px;left:3px;top:3px;border-radius:50%;background:white;box-shadow:0 2px 5px rgba(0,0,0,.16);transition:.2s}.policy-switch input:checked+i{background:var(--success)}.policy-switch input:checked+i::after{transform:translateX(18px)}.download-policy-tag{display:inline-flex;align-items:center;gap:5px;padding:5px 8px;border-radius:13px;background:#f1f3f2;color:#69767e;font-size:8px;white-space:nowrap}.download-policy-tag.is-open{background:#e5f5ee;color:var(--success)}.attempt-actions{margin-top:auto;display:flex;align-items:center;gap:8px;flex-wrap:wrap}.attempt-actions .button{margin-top:0}.attempt-delete{border:0;background:transparent;color:var(--danger);padding:8px;font-size:10px}.attempt-resume-note{color:var(--blue);font-size:10px;font-weight:700}
.material-policy-groups{display:grid;gap:14px}.material-policy-group{padding:13px;border:1px solid var(--line);border-radius:8px;background:#fafbf9}.material-policy-group>header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.material-policy-group>header b{color:var(--navy-2);font-size:12px}.material-policy-group>header span{color:var(--muted);font-size:8px}.material-category-path{display:inline-grid;gap:3px}.material-category-path b{color:var(--navy-2);font-size:10px}.material-category-path i{color:var(--success);font-size:8px;font-style:normal}.material-library-toolbar{display:grid;grid-template-columns:minmax(230px,1fr) 160px auto;gap:12px;align-items:end;margin-bottom:17px}.material-library-toolbar--hierarchy{grid-template-columns:minmax(230px,1fr) 155px 155px 135px auto}.material-library-toolbar label{display:grid;gap:6px;color:var(--muted);font-size:9px}.material-library-toolbar input,.material-library-toolbar select{min-height:40px;padding:8px 10px;border:1px solid var(--line);border-radius:5px;background:white;color:var(--ink)}.material-library-toolbar select:disabled{background:#f2f4f3;color:#9aa4a8}.material-library-toolbar>span{padding-bottom:11px;color:var(--muted);font-size:9px;white-space:nowrap}.table-actions .danger-action{color:var(--danger)}
.material-policy-group>header small{display:block;margin-top:3px;color:var(--muted);font-size:8px}
.material-primary-overview{margin-bottom:13px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:11px}.material-primary-summary{min-height:98px;padding:16px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:9px;background:var(--paper);box-shadow:0 8px 22px rgba(15,34,52,.035)}.material-primary-summary::before{content:"";position:absolute;inset:0 auto 0 0;width:4px;background:var(--blue)}.material-primary-summary--marketing::before{background:#d69d4b}.material-primary-summary--academic::before{background:var(--success)}.material-primary-summary>div:first-child span{display:block;color:var(--muted);font-size:8px;letter-spacing:.08em}.material-primary-summary strong{display:inline-block;margin:5px 7px 0 0;color:var(--navy-2);font:600 25px "Noto Serif SC",serif}.material-primary-summary small{color:#89959a;font-size:8px}.material-primary-summary>div:last-child{min-width:104px;padding-left:14px;border-left:1px solid var(--line-soft)}.material-primary-summary>div:last-child b{display:block;color:var(--blue);font-size:9px}.material-primary-summary>div:last-child small{display:block;margin-top:4px}.material-policy-details{margin-bottom:13px;padding:0}.material-policy-details>summary{min-height:54px;padding:11px 16px;display:flex;align-items:center;justify-content:space-between;gap:14px;cursor:pointer;list-style:none}.material-policy-details>summary::-webkit-details-marker{display:none}.material-policy-details>summary div{display:grid;gap:3px}.material-policy-details>summary b{color:var(--navy-2);font-size:11px}.material-policy-details>summary span{color:var(--muted);font-size:8px}.material-policy-details>summary small{display:flex;align-items:center;gap:5px;color:var(--blue);font-size:8px}.material-policy-details[open]>summary{border-bottom:1px solid var(--line-soft);background:#f7faf9}.material-policy-details[open]>summary svg{transform:rotate(90deg)}.material-policy-details>.material-policy-groups{padding:14px}.material-library-panel{padding:15px}.material-library-panel .material-library-toolbar{margin-bottom:13px}.material-admin-list{display:grid;gap:8px}.material-admin-card{min-height:88px;padding:12px 13px;display:grid;grid-template-columns:minmax(240px,1.35fr) minmax(270px,1fr) 130px auto;align-items:center;gap:15px;border:1px solid var(--line-soft);border-radius:8px;background:#fff;transition:border-color .16s ease,box-shadow .16s ease}.material-admin-card:hover{border-color:#b9d1cf;box-shadow:0 9px 24px rgba(16,43,57,.055)}.material-admin-file{min-width:0;display:grid;grid-template-columns:34px minmax(0,1fr);align-items:center;gap:11px}.material-admin-file>span{width:32px;height:40px;display:grid;place-items:center;border-radius:4px;background:var(--blue);color:#fff;font-size:7px;font-weight:800;letter-spacing:.06em}.material-admin-file h3{margin:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--navy-2);font:600 13px/1.4 "Noto Serif SC",serif}.material-admin-file p{margin:4px 0 0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:var(--muted);font-size:8px}.material-admin-tags{min-width:0;display:flex;align-items:center;gap:7px;flex-wrap:wrap}.material-audience-tag{padding:5px 8px;border-radius:13px;background:#edf3f5;color:#617784;font-size:8px;white-space:nowrap}.material-admin-learning{display:grid;grid-template-columns:1fr 1fr;gap:5px}.material-admin-learning span{display:grid;gap:3px;color:var(--muted);font-size:7px}.material-admin-learning b{color:var(--navy-2);font-size:11px}.material-admin-actions{display:flex;align-items:center;justify-content:flex-end;gap:6px}.material-admin-actions button{min-height:32px;padding:7px 9px;border:1px solid var(--line);border-radius:5px;background:#fff;color:var(--blue);font-size:8px;white-space:nowrap}.material-admin-actions .button{margin:0;border-color:var(--blue);color:#fff}.material-admin-actions .danger-action{border-color:transparent;color:var(--danger)}

/* Training courses */
.course-access-note{margin-bottom:18px;padding:15px 18px;display:flex;align-items:center;gap:12px;border:1px solid #cfe4e0;border-radius:8px;background:#edf8f5;color:var(--success)}.course-access-note div{display:grid;gap:3px}.course-access-note b{font-size:11px}.course-access-note span{color:#617b80;font-size:9px}
.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px}.course-card{min-height:385px;padding:27px;display:flex;flex-direction:column;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:10px;background:var(--paper);box-shadow:0 14px 34px rgba(15,34,52,.045)}.course-card::after{content:"";position:absolute;width:155px;height:155px;right:-88px;top:-90px;border:1px solid #cfe0e0;border-radius:50%;box-shadow:0 0 0 25px rgba(20,151,135,.035)}.course-card-index{position:absolute;right:20px;top:17px;color:#d4dddf;font:30px Georgia,serif}.course-card>span{color:var(--teal);font-size:8px;letter-spacing:.16em}.course-card h2{margin:17px 0 8px;padding-right:40px;font:600 22px/1.45 "Noto Serif SC",serif}.course-card>p{min-height:50px;margin:0;color:var(--muted);font-size:10px;line-height:1.7}.course-card-material{margin-top:19px;padding:12px;display:grid;grid-template-columns:auto 1fr;column-gap:8px;align-items:center;border-radius:7px;background:#f1f5f5;color:var(--blue)}.course-card-material svg{grid-row:1/3}.course-card-material b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px}.course-card-material small{color:#7a898e;font-size:8px}.course-card dl{margin:18px 0;display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line-soft)}.course-card dl div{padding:12px 8px;border-right:1px solid var(--line-soft)}.course-card dl div:last-child{border:0}.course-card dt{color:#89959b;font-size:8px}.course-card dd{margin:5px 0 0;color:var(--navy-2);font-size:10px;font-weight:700}.course-card>.button{margin-top:auto;width:100%}
.course-admin-summary{margin-bottom:17px;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.course-admin-summary article{min-height:86px;padding:17px 19px;display:flex;flex-direction:column;justify-content:center;border:1px solid var(--line);border-radius:8px;background:var(--paper)}.course-admin-summary span{color:var(--muted);font-size:9px}.course-admin-summary strong{margin-top:7px;color:var(--blue);font:600 22px "Noto Serif SC",serif}.course-admin-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.course-admin-card{padding:22px;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(190px,.9fr);gap:15px;border:1px solid var(--line);border-radius:9px;background:var(--paper);box-shadow:0 10px 28px rgba(14,34,53,.04)}.course-admin-card>header{min-width:0}.course-admin-card>header>div{display:flex;align-items:center;justify-content:space-between}.course-admin-card>header small{color:#9aa5aa;font-size:8px}.course-admin-card h2{margin:12px 0 5px;font:600 19px/1.4 "Noto Serif SC",serif}.course-admin-card header p{margin:0;color:var(--muted);font-size:9px;line-height:1.6}.course-admin-material{padding:12px;display:flex;flex-direction:column;justify-content:center;gap:3px;border-radius:7px;background:#f1f5f5}.course-admin-material span{color:var(--muted);font-size:8px}.course-admin-material b{font-size:10px}.course-admin-material small{color:#7d8a90;font-size:8px}.course-admin-stats{grid-column:1/-1;display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid var(--line-soft)}.course-admin-stats span{padding:10px;color:#849197;font-size:8px}.course-admin-stats b{display:block;margin-bottom:3px;color:var(--navy-2);font-size:10px}.course-admin-actions{grid-column:1/-1;display:flex;gap:8px}.course-admin-actions>button:not(.button){border:1px solid var(--line);border-radius:5px;background:white;color:var(--blue);padding:8px 11px;font-size:9px}.course-admin-actions .danger-action{margin-left:auto;color:var(--danger)!important}
.course-recorder-layout{min-height:0;flex:1;display:grid;grid-template-columns:minmax(0,1.35fr) minmax(360px,.65fr);background:#eef2f2}.course-recorder-pdf{min-width:0;min-height:0;display:flex;flex-direction:column;background:#34404b}.course-recorder-pdf>header{min-height:47px;padding:8px 14px;display:flex;align-items:center;gap:9px;background:#263642;color:white}.course-recorder-pdf>header span{color:#7ddacf;font-size:8px}.course-recorder-pdf>header b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:10px}.course-recorder-panel{min-width:0;min-height:0;padding:19px;overflow:auto;border-left:1px solid #ccd6d7;background:var(--paper)}.course-recorder-panel>header span{color:var(--teal);font-size:7px;letter-spacing:.16em}.course-recorder-panel>header h3{margin:5px 0 4px;font:600 21px "Noto Serif SC",serif}.course-recorder-panel>header p{margin:0;color:var(--muted);font-size:9px;line-height:1.6}.course-recorder-existing{margin:17px 0;padding:12px;border:1px solid var(--line);border-radius:7px;background:#f8faf9}.course-recorder-title{display:flex;justify-content:space-between;margin-bottom:7px}.course-recorder-title b{font-size:10px}.course-recorder-title span{color:var(--muted);font-size:8px}.course-segment-admin{min-height:48px;display:grid;grid-template-columns:31px minmax(0,1fr) auto auto;align-items:center;gap:7px;border-top:1px solid var(--line-soft)}.course-segment-admin button{border:0;background:transparent;color:var(--blue);font-size:8px}.course-segment-admin .danger-action{color:var(--danger)}.course-segment-play{width:28px;height:28px;border-radius:50%!important;display:grid;place-items:center;background:#e5f2f0!important;color:var(--success)!important}.course-segment-admin b{display:block;font-size:9px}.course-segment-admin small{color:var(--muted);font-size:7px}.course-recorder-empty{margin:0;padding:10px;color:var(--muted);font-size:8px;line-height:1.6}.course-recorder-existing audio{width:100%;height:34px;margin-top:8px}.course-record-form{display:grid;gap:11px}.course-record-form label{display:grid;gap:5px;color:#455866;font-size:9px}.course-record-form input{min-height:40px;padding:8px 10px;border:1px solid var(--line);border-radius:5px}.course-record-status{min-height:50px;padding:10px 12px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:8px;border-radius:7px;background:#f1f5f5}.record-dot{width:9px;height:9px;border-radius:50%;background:#aab5b9}.course-record-status b{font-size:9px}.course-record-status strong{color:var(--blue);font:14px monospace}.course-record-form.is-recording .record-dot{background:#e35252;box-shadow:0 0 0 5px rgba(227,82,82,.13);animation:pulse 1s infinite}.course-record-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px}.course-record-form audio{width:100%;height:38px}.course-record-help{color:#879399;font-size:8px;line-height:1.6}
.modal--course{width:min(1580px,100%);height:calc(100vh - 40px)}.modal--course .modal-body{overflow:hidden}.course-player-shell{min-height:0;flex:1;display:flex;flex-direction:column;background:#34404b}.course-player-top{flex:0 0 auto;padding:10px 14px;display:grid;grid-template-columns:auto minmax(0,1fr) minmax(280px,380px);gap:13px;align-items:center;border-bottom:1px solid #d2dddd;background:#f4f7f6}.course-player-top>div:first-child{display:grid;gap:3px}.course-player-top>div:first-child span{color:var(--teal);font-size:8px}.course-player-top>div:first-child b{font-size:9px}.course-audio-strip{min-width:0;display:flex;gap:7px;overflow-x:auto;padding:2px 0;scrollbar-width:thin}.course-audio-strip button{flex:0 0 auto;min-width:180px;min-height:46px;padding:5px 8px;display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:7px;border:1px solid #d8e1e1;border-radius:6px;background:white;color:var(--blue);text-align:left}.course-audio-strip button:disabled{opacity:.55}.course-audio-strip button.active{border-color:var(--teal);background:#eaf7f4;box-shadow:0 0 0 2px rgba(21,151,133,.08)}.course-audio-strip button>i{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#edf2f3;color:#74858d;font-size:8px;font-style:normal}.course-audio-strip button span{min-width:0;display:grid;gap:2px}.course-audio-strip button b{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:8px}.course-audio-strip button small{color:#8b989d;font-size:7px}.course-now-playing{min-width:0;display:grid;grid-template-columns:1fr;gap:4px}.course-now-playing span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#52676f;font-size:8px}.course-now-playing audio{width:100%;height:32px}.course-study-layout{min-height:0;flex:1;display:grid;grid-template-columns:minmax(0,1fr) 310px}.course-pdf-stage{min-width:0;min-height:0;position:relative;overflow:auto;padding:21px;background:radial-gradient(circle at 50% 10%,#56636e,#303b46 66%,#27323b)}.course-pdf-pages{min-width:100%;display:flex;flex-direction:column;align-items:center;gap:20px}.course-pdf-page{position:relative;flex:0 0 auto;background:white;box-shadow:0 18px 48px rgba(0,0,0,.3);scroll-margin-top:14px}.course-pdf-page>span{position:absolute;z-index:4;left:-31px;top:7px;padding:4px 6px;border-radius:12px;background:rgba(14,29,43,.8);color:white;font-size:8px}.course-pdf-page canvas{display:block;background:white}.course-chapter-panel{min-width:0;min-height:0;padding:19px;overflow:auto;border-left:1px solid #cad5d6;background:#fbfcfa}.course-chapter-panel>span{color:var(--teal);font-size:7px;letter-spacing:.15em}.course-chapter-panel h3{margin:5px 0;font:600 21px "Noto Serif SC",serif}.course-chapter-panel>p{margin:0 0 16px;color:var(--muted);font-size:9px;line-height:1.6}.course-chapter-panel>div{display:grid}.course-chapter-panel button{min-height:59px;padding:8px 5px;display:grid;grid-template-columns:28px minmax(0,1fr) auto;align-items:center;gap:8px;border:0;border-top:1px solid var(--line-soft);background:transparent;color:inherit;text-align:left}.course-chapter-panel button>i{width:25px;height:25px;display:grid;place-items:center;border-radius:50%;background:#edf1f2;color:#728088;font-size:8px;font-style:normal}.course-chapter-panel button b{display:block;font-size:9px}.course-chapter-panel button small{color:var(--muted);font-size:7px}.course-chapter-panel button em{color:var(--blue);font-size:8px;font-style:normal}.course-chapter-panel button.active{background:#edf8f5}.course-chapter-panel button.active>i{background:var(--success);color:white}.course-chapter-panel footer{margin-top:16px;padding:12px;display:grid;gap:4px;border-radius:6px;background:#eef5f4}.course-chapter-panel footer span{color:var(--success);font-size:9px;font-weight:700}.course-chapter-panel footer small{color:#71838a;font-size:7px}

@media (max-width: 760px) {
  .public-header{padding-inline:10px}.public-header .brand-symbol{width:31px;height:34px;transform:scale(.72) rotate(-7deg);transform-origin:left center;margin-right:-8px}.public-header .brand-copy{display:flex}.public-header .brand-copy strong{font-size:15px}.public-header .brand-copy small{display:none}.home-brand-lockup{gap:6px}.home-brand-divider{height:22px}.home-company-logo{width:68px}.portal-header .brand-copy,.admin-header .brand-copy{display:flex}.portal-header .brand-copy small,.admin-header .brand-copy small{display:none}.material-admin-filter,.material-library-toolbar,.material-library-toolbar--hierarchy{grid-template-columns:1fr}.material-admin-filter span,.material-library-toolbar>span{padding:0}.material-policy-grid{grid-template-columns:1fr}.admin-table tr[hidden]{display:none}.attempt-review-toolbar{padding:10px;align-items:stretch;flex-direction:column}.review-filter-group{display:grid;grid-template-columns:1fr 1fr}.review-filter-group button{padding-inline:8px}
  .material-browser>header{align-items:stretch;flex-direction:column;gap:13px}.material-browser>header label{width:100%}.material-category-level{grid-template-columns:1fr;gap:9px;padding:13px}.category-level-label{display:flex;align-items:baseline;gap:8px}.category-choice-list{flex-wrap:nowrap;overflow-x:auto;padding-bottom:2px}.category-choice-list button{flex:0 0 auto}.material-browser>footer{align-items:flex-start;flex-direction:column;justify-content:center;gap:3px;padding-block:9px}.material-policy-group{padding:10px}
  .material-primary-overview{grid-template-columns:1fr}.material-primary-summary{min-height:82px}.material-library-panel{padding:10px}.material-admin-card{grid-template-columns:1fr;gap:10px}.material-admin-tags{align-items:flex-start}.material-admin-learning{max-width:190px}.material-admin-actions{justify-content:flex-start;overflow-x:auto;padding-bottom:2px}.material-admin-actions button{flex:0 0 auto}
  .modal--reader{height:calc(100vh - 16px);height:calc(100dvh - 16px);max-height:calc(100dvh - 16px);border-radius:7px}.modal--reader>header{min-height:55px;padding:9px 13px}.modal--reader>header h2{max-width:72vw;font-size:14px}.integrated-pdf-toolbar{min-height:48px;padding-inline:8px;overflow-x:auto;flex-wrap:nowrap;touch-action:pan-x}.integrated-pdf-toolbar>span:first-child,.integrated-pdf-toolbar>.active-study-time,.integrated-pdf-toolbar>small,.integrated-pdf-toolbar>[data-resume],.integrated-pdf-toolbar>[data-report],.pdf-selection-hint,.pdf-translation-scope{display:none}.integrated-pdf-toolbar button{min-height:36px;flex:0 0 auto}.pdf-reader-stage{padding:12px}.pdf-pages-continuous{gap:12px}.pdf-page-index{display:none}.pdf-page-controls input{width:35px}.pdf-touch-hint{display:block}.paged-pdf-toolbar{gap:6px}.paged-pdf-stage{padding:10px}.paged-pdf-canvas-shell{min-height:100%}
}

@media (min-width:761px) and (max-width:1180px){.material-primary-overview{grid-template-columns:1fr}.material-admin-card{grid-template-columns:minmax(220px,1.25fr) minmax(220px,1fr);gap:11px}.material-admin-learning{grid-column:1}.material-admin-actions{grid-column:2;grid-row:2}}
.material-admin-actions .button{background:var(--blue)}

@media (max-width:1180px){.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.course-admin-list{grid-template-columns:1fr}.course-recorder-layout{grid-template-columns:minmax(0,1fr) minmax(330px,.7fr)}.course-study-layout{grid-template-columns:minmax(0,1fr) 270px}.course-player-top{grid-template-columns:auto minmax(0,1fr) minmax(240px,320px)}}
@media (max-width:760px){.course-access-note{align-items:flex-start}.course-grid{grid-template-columns:1fr}.course-card{min-height:350px;padding:22px}.course-admin-summary{grid-template-columns:1fr 1fr}.course-admin-card{grid-template-columns:1fr}.course-admin-stats,.course-admin-actions{grid-column:1}.course-admin-actions{flex-wrap:wrap}.course-admin-actions .danger-action{margin-left:0}.course-recorder-layout{grid-template-columns:1fr;overflow:auto}.course-recorder-pdf{min-height:44vh}.course-recorder-panel{border-left:0;border-top:1px solid #ccd6d7}.modal--course{height:calc(100vh - 16px)}.course-player-top{grid-template-columns:1fr;padding:9px}.course-audio-strip{order:2}.course-now-playing{order:3}.course-study-layout{grid-template-columns:1fr;overflow:auto}.course-pdf-stage{min-height:56vh;padding:12px}.course-pdf-pages{gap:12px}.course-pdf-page>span{display:none}.course-chapter-panel{min-height:36vh;border-left:0;border-top:1px solid #cad5d6}}
.course-recorder-pdf>header{justify-content:space-between}.course-recorder-pdf>header>div:first-child{min-width:0;display:grid;gap:2px}.course-recorder-page-controls{display:flex;align-items:center;gap:5px}.course-recorder-page-controls button{width:27px;height:27px;border:1px solid rgba(255,255,255,.24);border-radius:4px;background:rgba(255,255,255,.08);color:#fff}.course-recorder-page-controls label{display:flex;align-items:center;gap:4px;color:rgba(255,255,255,.72);font-size:8px;white-space:nowrap}.course-recorder-page-controls input{width:42px;min-height:27px;padding:3px;border:1px solid rgba(255,255,255,.22);border-radius:4px;background:#fff;color:var(--navy-2);text-align:center}.course-record-form label small{color:var(--muted);font-size:7px;font-weight:400}

/* Material tags, companion analysis and public comments */
.material-tag-editor{margin:0;padding:13px 15px;border:1px solid var(--line);border-radius:7px;background:#f8faf9}.material-tag-editor>span{display:block;margin-bottom:9px;color:#435468;font-size:10px}.material-tag-editor>small{display:block;margin-top:8px;color:var(--muted);font-size:8px}.material-tag-checkboxes{display:flex;flex-wrap:wrap;gap:8px}.material-tag-checkboxes label{min-height:34px;padding:7px 10px;display:flex!important;grid-template-columns:auto 1fr!important;align-items:center;gap:6px;border:1px solid var(--line);border-radius:17px;background:white;color:#536672!important;cursor:pointer}.material-tag-checkboxes input{width:14px!important;min-height:14px!important;accent-color:var(--teal)}
.material-comment-button{min-height:34px;padding:6px 9px;display:flex;align-items:center;gap:5px;border:1px solid #cfe3e0;border-radius:5px;background:#f0f8f6;color:var(--success);font-size:9px;white-space:nowrap}.protected-pdf-preview{height:100%;min-height:0;position:relative;background:#3a4651}.protected-pdf-preview .pdf-frame{width:100%;height:100%;border:0}.material-comments-shell{min-height:0;flex:1;display:grid;grid-template-rows:auto minmax(0,1fr);background:#f3f6f5}.material-comment-form{padding:17px 20px;display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:12px;border-bottom:1px solid var(--line);background:white}.material-comment-form label{display:grid;gap:6px;color:#455866;font-size:10px}.material-comment-form textarea{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;resize:vertical}.material-comment-form .button{min-width:105px}.comment-guidance{padding:13px 20px;border-bottom:1px solid #d7e4e2;background:#edf7f5;color:#55716e;font-size:9px}.material-comment-list{padding:17px 20px;display:grid;align-content:start;gap:10px;overflow:auto}.material-comment-list>article{padding:15px;display:grid;grid-template-columns:38px minmax(0,1fr) auto;align-items:start;gap:11px;border:1px solid var(--line);border-radius:8px;background:white}.comment-avatar{width:36px;height:36px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,var(--blue),var(--teal));color:white;font-weight:700}.material-comment-list header{display:flex;align-items:center;gap:8px}.material-comment-list header b{font-size:11px}.material-comment-list header span,.material-comment-list header time{color:var(--muted);font-size:8px}.material-comment-list header time{margin-left:auto}.material-comment-list p{margin:8px 0 0;color:#405462;font-size:11px;line-height:1.75}.comment-delete{border:0;background:transparent;color:var(--danger);font-size:8px}.question-source-material{margin-top:14px;padding:8px 11px;border-left:3px solid var(--teal);background:#eef7f5;color:#3f6663;font-size:9px}.question-source-material--preview{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:10px 11px 10px 13px}.question-source-material--preview>span{min-width:0;display:grid;gap:3px}.question-source-material--preview>span small{color:#73918e;font-size:7px;letter-spacing:.1em}.question-source-material--preview>span b{overflow-wrap:anywhere;color:#2c5754;font-size:10px;line-height:1.45}.question-source-material--preview>button{min-height:34px;padding:6px 11px;display:inline-flex;align-items:center;gap:6px;flex:0 0 auto;border:1px solid #b8d9d3;border-radius:5px;background:#fff;color:var(--success);font-size:9px;font-weight:700;white-space:nowrap}.question-source-material--preview>button:hover,.question-source-material--preview>button:focus-visible{border-color:var(--teal);background:#e1f4f0}.attempt-review .question-source-material{margin-top:13px}.exam-card.is-locked{opacity:.78;background:#f4f6f5}.exam-card.is-locked .exam-no{display:grid;place-items:center}.exam-source-note{display:block;margin-top:9px;color:var(--success);font-size:8px}.exam-card button:disabled{cursor:not-allowed;filter:grayscale(.4)}
.question-source-material>b { display: block; overflow-wrap: anywhere; color: #2c5754; font-size: 10px; line-height: 1.5; }
.question-source-material>small { display: block; margin-top: 4px; color: #5f7f7c; font-size: 8px; line-height: 1.5; }
.question-source-material--preview>span em { color: #5f7f7c; font-size: 8px; font-style: normal; line-height: 1.5; }
.material-admin-learning{grid-template-columns:repeat(3,1fr)}
@media (max-width:760px){.material-comment-form{grid-template-columns:1fr}.material-comment-form .button{width:100%}.material-comment-list{padding:10px}.material-comment-list>article{grid-template-columns:34px minmax(0,1fr)}.material-comment-list .comment-delete{grid-column:2;justify-self:start}.material-comment-list header{flex-wrap:wrap}.material-comment-list header time{margin-left:0}.question-source-material--preview{align-items:stretch;flex-direction:column}.question-source-material--preview>button{justify-content:center;width:100%}}

/* Viewport containment and single-question challenge */
#app,
.home-page,
.auth-shell,
.portal-shell,
.admin-shell,
.exam-shell,
.advanced-challenge-shell { width: 100%; max-width: 100%; min-width: 0; overflow-x: clip; }
.portal-shell,
.admin-shell,
.exam-shell { grid-template-columns: minmax(0,234px) minmax(0,1fr); }
.admin-shell { grid-template-columns: minmax(0,218px) minmax(0,1fr); }
.exam-shell { grid-template-columns: minmax(0,200px) minmax(0,1fr); }
.portal-main { width: 100%; max-width: 1340px; min-width: 0; }
.portal-main > *,
.admin-main > *,
.exam-paper > *,
.material-card,
.dashboard-panel,
.admin-panel { min-width: 0; max-width: 100%; }
.page-heading > div,
.admin-page-heading > div,
.material-info,
.material-info h2,
.overview-material-button > span,
.modal > header > div,
.modal > header h2,
.course-card,
.course-card h2 { min-width: 0; max-width: 100%; overflow-wrap: anywhere; word-break: break-word; }
.integrated-pdf-reader,
.pdf-reader-stage,
.pdf-pages-continuous,
.course-player-shell,
.course-study-layout,
.course-pdf-stage,
.course-pdf-pages { width: 100%; max-width: 100%; min-width: 0; }
.admin-table { width: 100%; max-width: 100%; }
.admin-table th,
.admin-table td { overflow-wrap: anywhere; }
.modal { max-width: calc(100vw - 60px); }
.modal--reader,
.modal--course { max-width: calc(100vw - 60px); }
.integrated-pdf-toolbar { flex-wrap: wrap; white-space: normal; padding-block: 7px; }
.integrated-pdf-toolbar > small { margin-left: auto; }

.advanced-challenge-shell { min-height: 100vh; display: grid; grid-template-rows: 68px minmax(0,1fr); }
.advanced-challenge-shell .exam-header { grid-column: 1; }
.advanced-challenge-main { width: min(820px,calc(100% - 40px)); min-width: 0; margin: 0 auto; padding: 48px 0 80px; }
.advanced-challenge-main .question-card { margin-bottom: 18px; box-shadow: 0 18px 48px rgba(15,34,52,.07); }
.advanced-challenge-main .final-submit { max-width: 100%; }
.challenge-result-page > div:last-child { flex-wrap: wrap; justify-content: center; }

@media (max-width: 1450px) and (min-width: 761px) {
  .material-admin-card { grid-template-columns: minmax(220px,1.3fr) minmax(220px,1fr); }
  .material-admin-learning { grid-column: 1; }
  .material-admin-actions { grid-column: 2; grid-row: 2; flex-wrap: wrap; }
  .course-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}

@media (max-width: 1100px) and (min-width: 761px) {
  .portal-shell { grid-template-columns: minmax(0,205px) minmax(0,1fr); }
  .admin-shell { grid-template-columns: minmax(0,190px) minmax(0,1fr); }
  .portal-main,
  .admin-main { padding-inline: 24px; }
  .material-library-toolbar--hierarchy { grid-template-columns: minmax(180px,1fr) repeat(3,minmax(120px,.6fr)); }
  .material-library-toolbar--hierarchy > span { grid-column: 1 / -1; padding: 0; }
}

@media (max-width: 760px) {
  .portal-shell,
  .admin-shell,
  .exam-shell { grid-template-columns: minmax(0,1fr); }
  .modal,
  .modal--reader,
  .modal--course { max-width: calc(100vw - 16px); }
  .integrated-pdf-toolbar { overflow: visible; white-space: normal; flex-wrap: wrap; }
  .advanced-challenge-shell { grid-template-rows: 62px minmax(0,1fr); }
  .advanced-challenge-shell .exam-header { height: 62px; padding-inline: 8px; }
  .advanced-challenge-shell .exam-header span { display: none; }
  .advanced-challenge-shell .exam-header strong { font-size: 15px; }
  .advanced-challenge-shell .exam-header button { padding: 7px 9px; font-size: 9px; }
  .advanced-challenge-main { width: calc(100% - 24px); padding: 28px 0 90px; }
  .advanced-challenge-main .paper-intro h1 { font-size: 26px; }
  .ranking-table { overflow: hidden; }
  .ranking-period-switch { padding-inline: 10px; justify-content: flex-start; }
  .ranking-period-switch button { min-width: 62px; min-height: 36px; }
  .ranking-period-summary { padding-inline: 13px; align-items: flex-start; flex-direction: column; gap: 2px; }
  .ranking-table header { display: none; }
  .ranking-table > div { min-width: 0!important; grid-template-columns: 38px minmax(0,1fr) minmax(0,1fr); gap: 7px; padding: 12px 7px; }
  .ranking-table > div > [data-label] { display: grid; gap: 2px; }
  .ranking-table > div > [data-label]::before { content: attr(data-label); color: #8595a0; font-size: 7px; font-weight: 400; line-height: 1.2; }
  .admin-main,
  .portal-main { width: 100%; max-width: 100%; }
}

/* Simplified learning-material administration */
.material-ops-overview { margin-bottom: 13px; display: grid; grid-template-columns: repeat(4,minmax(90px,.65fr)) minmax(230px,1.5fr); gap: 8px; }
.material-ops-overview article,
.material-ops-overview aside { min-width: 0; min-height: 66px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.material-ops-overview article { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 2px 8px; }
.material-ops-overview article span { color: var(--muted); font-size: 8px; }
.material-ops-overview article strong { grid-row: 1 / span 2; grid-column: 2; color: var(--blue); font: 600 23px "Noto Serif SC",serif; }
.material-ops-overview article small { color: #87949a; font-size: 7px; line-height: 1.4; }
.material-ops-overview aside { display: flex; flex-direction: column; justify-content: center; gap: 5px; color: white; border-color: var(--navy); background: linear-gradient(120deg,var(--navy),#0c4e7d); }
.material-ops-overview aside b { font-size: 9px; }
.material-ops-overview aside span { color: #90ddd6; font-size: 9px; letter-spacing: .03em; }
.material-library-head { margin-bottom: 13px; padding-bottom: 12px; display: flex; justify-content: space-between; align-items: center; gap: 16px; border-bottom: 1px solid var(--line-soft); }
.material-library-head > div { min-width: 0; display: grid; gap: 4px; }
.material-library-head b { color: var(--navy-2); font-size: 13px; }
.material-library-head span { color: var(--muted); font-size: 8px; }
.material-library-head button { border: 0; background: transparent; color: var(--blue); font-size: 9px; }
.material-library-toolbar--simple { grid-template-columns: minmax(240px,1fr) 150px 150px 125px auto; }
.material-admin-card { grid-template-columns: minmax(250px,1.35fr) minmax(230px,1fr) 128px minmax(250px,auto); }
.material-admin-actions--simple { overflow: visible; position: relative; }
.material-more-menu { position: relative; }
.material-more-menu > summary { min-height: 32px; padding: 7px 10px; display: flex; align-items: center; border: 1px solid var(--line); border-radius: 5px; background: #fff; color: var(--blue); font-size: 8px; list-style: none; cursor: pointer; white-space: nowrap; }
.material-more-menu > summary::-webkit-details-marker { display: none; }
.material-more-menu[open] > summary { border-color: var(--blue); background: #edf4fd; }
.material-more-menu > div { width: 220px; padding: 7px; position: absolute; z-index: 40; right: 0; top: calc(100% + 7px); display: grid; gap: 6px; border: 1px solid #cdd8da; border-radius: 8px; background: white; box-shadow: 0 18px 42px rgba(11,32,51,.2); }
.material-more-menu section { padding: 4px; display: grid; gap: 4px; }
.material-more-menu section + section { border-top: 1px solid var(--line-soft); padding-top: 8px; }
.material-more-menu section b { padding: 2px 4px; color: #839096; font-size: 7px; letter-spacing: .08em; }
.material-more-menu section button { width: 100%; min-height: 31px; border-color: transparent; text-align: left; }
.material-more-menu section button:hover { background: #f1f6f5; }
.material-more-menu section .danger-action { color: var(--danger); }
.material-upload-steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 5px; }
.material-upload-steps span { padding: 7px 8px; border-radius: 5px; background: #f1f4f4; color: #7b898f; font-size: 8px; text-align: center; }
.material-upload-steps span.active { background: #e7f4f2; color: var(--success); font-weight: 700; }
.material-file-first { border-color: rgba(12,78,181,.28)!important; background: #f6f9fe!important; }
.material-upload-optional { border: 1px solid var(--line); border-radius: 6px; background: #fafbf9; }
.material-upload-optional > summary { padding: 11px 13px; color: var(--blue); font-size: 9px; cursor: pointer; }
.material-upload-optional > label { padding: 0 13px 13px; }

@media (max-width: 1250px) and (min-width: 761px) {
  .material-ops-overview { grid-template-columns: repeat(4,minmax(90px,1fr)); }
  .material-ops-overview aside { grid-column: 1 / -1; min-height: 50px; }
  .material-library-toolbar--simple { grid-template-columns: minmax(220px,1fr) repeat(3,minmax(120px,.55fr)); }
  .material-library-toolbar--simple > span { grid-column: 1 / -1; padding: 0; }
  .material-admin-card { grid-template-columns: minmax(220px,1.25fr) minmax(220px,1fr); }
  .material-admin-learning { grid-column: 1; }
  .material-admin-actions--simple { grid-column: 2; grid-row: 2; flex-wrap: wrap; }
}

@media (max-width: 760px) {
  .material-ops-overview { grid-template-columns: 1fr 1fr; }
  .material-ops-overview aside { grid-column: 1 / -1; }
  .material-library-head { align-items: flex-start; }
  .material-library-head span { line-height: 1.5; }
  .material-admin-card { width: 100%; grid-template-columns: minmax(0,1fr); }
  .material-admin-file,
  .material-admin-tags,
  .material-admin-learning,
  .material-admin-actions--simple { min-width: 0; grid-column: 1; grid-row: auto; }
  .material-admin-actions--simple { overflow: visible; flex-wrap: wrap; }
  .material-more-menu > div { left: 0; right: auto; }
  .material-upload-steps span { font-size: 7px; padding-inline: 4px; }
  .portal-sidebar,
  .admin-sidebar { height: 110px; overflow: hidden; }
  .portal-sidebar nav,
  .admin-sidebar nav { width: 100%; min-width: 0; height: 110px; display: grid; grid-auto-rows: 55px; gap: 0; }
  .portal-sidebar nav { grid-template-columns: repeat(5,minmax(0,1fr)); }
  .admin-sidebar nav { grid-template-columns: repeat(6,minmax(0,1fr)); }
  .portal-sidebar nav button,
  .admin-sidebar nav button { width: auto; min-width: 0; height: 55px; flex: none; }
  .portal-main,
  .admin-main { padding-bottom: 138px; }
  .category-choice-list { flex-wrap: wrap; overflow-x: visible; }
  .category-choice-list button { flex: 0 1 auto; max-width: 100%; white-space: normal; }
  .material-admin-actions { flex-wrap: wrap; overflow-x: visible; }
  .material-admin-actions button { flex: 0 1 auto; min-width: 0; }
  .course-audio-strip { width: 100%; display: grid; grid-template-columns: 1fr; overflow-x: visible; }
  .course-audio-strip button { width: 100%; min-width: 0; }
  .course-now-playing audio { max-width: 100%; }
}

/* Persistent night theme */
:root[data-theme="dark"] body,
:root[data-theme="dark"] .home-body,
:root[data-theme="dark"] .portal-body-bg,
:root[data-theme="dark"] .admin-body-bg,
:root[data-theme="dark"] .exam-body-bg { background: var(--ivory); color: var(--ink); }
:root[data-theme="dark"] .public-header { background: rgba(8,17,31,.94); border-color: rgba(143,176,207,.16); }
:root[data-theme="dark"] .public-header nav button,
:root[data-theme="dark"] .back-button { color: #adbbca; }
:root[data-theme="dark"] .domain-section { background: #0b1523; }
:root[data-theme="dark"] .domain-map { border-color: var(--line); box-shadow: 0 28px 70px rgba(0,0,0,.25); }
:root[data-theme="dark"] .domain-card { border-color: var(--line); background: rgba(17,28,43,.94); }
:root[data-theme="dark"] .domain-card--wide { background: linear-gradient(125deg,#101f30,#102d32); }
:root[data-theme="dark"] .domain-card--clinical { background: #111c2b; }
:root[data-theme="dark"] .domain-card:not(.domain-card--core):hover,
:root[data-theme="dark"] .path-grid article:hover { background: #152436; box-shadow: 0 20px 45px rgba(0,0,0,.28); }
:root[data-theme="dark"] .domain-intro > div:last-child > span,
:root[data-theme="dark"] .domain-card > span,
:root[data-theme="dark"] .domain-card > small,
:root[data-theme="dark"] .path-grid article > span { color: #8293a5; }
:root[data-theme="dark"] .public-footer { background: #08111f; }

:root[data-theme="dark"] .button:not(.button--primary):not(.button--dark):not(.button--light):not(.button--glass),
:root[data-theme="dark"] .icon-button,
:root[data-theme="dark"] .filter-row button,
:root[data-theme="dark"] .ranking-tabs button,
:root[data-theme="dark"] .ranking-period-switch button,
:root[data-theme="dark"] .category-choice-list button,
:root[data-theme="dark"] .question-map button,
:root[data-theme="dark"] .material-admin-actions button,
:root[data-theme="dark"] .course-admin-actions > button:not(.button),
:root[data-theme="dark"] .material-tag-checkboxes label,
:root[data-theme="dark"] .email-reset-option > button,
:root[data-theme="dark"] .material-more-menu > summary,
:root[data-theme="dark"] .material-more-menu > div { background: #121f30; border-color: var(--line); color: var(--ink); }
:root[data-theme="dark"] .button--light { background: #edf5ff; border-color: #edf5ff; color: #061b38; }
:root[data-theme="dark"] .button--ghost { border-color: #42546a; color: var(--ink); }
:root[data-theme="dark"] input:not([type="checkbox"]):not([type="radio"]),
:root[data-theme="dark"] select,
:root[data-theme="dark"] textarea { background: #0c1725!important; border-color: #34465c!important; color: var(--ink)!important; }
:root[data-theme="dark"] input::placeholder,
:root[data-theme="dark"] textarea::placeholder { color: #6f8094; }
:root[data-theme="dark"] option { background: #0c1725; color: var(--ink); }

:root[data-theme="dark"] .role-switch,
:root[data-theme="dark"] .material-category-level--secondary,
:root[data-theme="dark"] .material-policy-card,
:root[data-theme="dark"] .material-policy-group,
:root[data-theme="dark"] .material-policy-details[open] > summary,
:root[data-theme="dark"] .paper-rules,
:root[data-theme="dark"] .grant-summary,
:root[data-theme="dark"] .review-filter-group,
:root[data-theme="dark"] .attempt-result-summary,
:root[data-theme="dark"] .question-bulk-bar,
:root[data-theme="dark"] .import-note,
:root[data-theme="dark"] .permission-note,
:root[data-theme="dark"] .course-access-note,
:root[data-theme="dark"] .course-card-material,
:root[data-theme="dark"] .course-admin-material,
:root[data-theme="dark"] .course-recorder-existing,
:root[data-theme="dark"] .course-record-status,
:root[data-theme="dark"] .material-tag-editor,
:root[data-theme="dark"] .material-comments-shell,
:root[data-theme="dark"] .comment-guidance,
:root[data-theme="dark"] .question-source-material,
:root[data-theme="dark"] .exam-card.is-locked,
:root[data-theme="dark"] .material-upload-steps span,
:root[data-theme="dark"] .material-upload-optional,
:root[data-theme="dark"] .material-file-first { background: #101d2c!important; border-color: var(--line)!important; color: var(--muted); }
:root[data-theme="dark"] .role-switch button.active,
:root[data-theme="dark"] .category-choice-list button.active,
:root[data-theme="dark"] .filter-row button.active,
:root[data-theme="dark"] .ranking-tabs button.active { background: var(--blue); color: #061426; }
:root[data-theme="dark"] .ranking-period-switch { background: #101d2c; border-color: var(--line); }
:root[data-theme="dark"] .ranking-period-switch button.active { background: var(--blue); color: #061426; }
:root[data-theme="dark"] .ranking-empty b { color: var(--ink)!important; }

:root[data-theme="dark"] .overview-material-button:hover,
:root[data-theme="dark"] .overview-material-button:focus-visible,
:root[data-theme="dark"] .grant-list label:hover,
:root[data-theme="dark"] .material-more-menu section button:hover,
:root[data-theme="dark"] .option:hover { background: #142536; }
:root[data-theme="dark"] .ranking-table > div.is-me,
:root[data-theme="dark"] .invite-notice,
:root[data-theme="dark"] .feedback-list blockquote,
:root[data-theme="dark"] .email-verification-card,
:root[data-theme="dark"] .email-reset-option,
:root[data-theme="dark"] .answer-comparison p,
:root[data-theme="dark"] .answer-explanation,
:root[data-theme="dark"] .option:has(input:checked),
:root[data-theme="dark"] .review-options li.is-expected,
:root[data-theme="dark"] .course-audio-strip button.active,
:root[data-theme="dark"] .course-chapter-panel button.active { background: #10302f; border-color: #29746d; color: var(--ink); }
:root[data-theme="dark"] .review-options li.is-selected { background: #172537; border-color: #42536a; }
:root[data-theme="dark"] .role-badge,
:root[data-theme="dark"] .code-card > span,
:root[data-theme="dark"] .email-status--verified,
:root[data-theme="dark"] .status--resolved,
:root[data-theme="dark"] .download-policy-tag.is-open,
:root[data-theme="dark"] .question-category-tag,
:root[data-theme="dark"] .admin-role--super { background: #123a34; }
:root[data-theme="dark"] .status--pending,
:root[data-theme="dark"] .email-status--pending { background: #3a2e16; }
:root[data-theme="dark"] .status--processing { background: #172e4d; }
:root[data-theme="dark"] .status--closed,
:root[data-theme="dark"] .email-status--disabled,
:root[data-theme="dark"] .download-policy-tag,
:root[data-theme="dark"] .material-audience-tag,
:root[data-theme="dark"] .admin-role,
:root[data-theme="dark"] .attempt-review > header i,
:root[data-theme="dark"] .review-options li > span,
:root[data-theme="dark"] .option span { background: #1a293b; color: #aec0d1; }

:root[data-theme="dark"] .admin-sidebar nav button { color: #a0afc0; }
:root[data-theme="dark"] .admin-sidebar nav button.active { background: #172b47; color: #79afff; }
:root[data-theme="dark"] .admin-table code { background: #172a44; }
:root[data-theme="dark"] .grant-list,
:root[data-theme="dark"] .material-admin-card,
:root[data-theme="dark"] .material-comment-form,
:root[data-theme="dark"] .material-comment-list > article,
:root[data-theme="dark"] .course-audio-strip button,
:root[data-theme="dark"] .course-chapter-panel,
:root[data-theme="dark"] .course-player-top { background: var(--paper); border-color: var(--line); color: var(--ink); }
:root[data-theme="dark"] .course-recorder-layout { background: #0b1522; }
:root[data-theme="dark"] .course-segment-play,
:root[data-theme="dark"] .course-audio-strip button > i,
:root[data-theme="dark"] .course-chapter-panel button > i { background: #1a2a3a!important; }
:root[data-theme="dark"] .course-chapter-panel footer { background: #112d2c; }
:root[data-theme="dark"] .modal { background: var(--paper); }
:root[data-theme="dark"] .modal > header { background: #0c1725; border-color: var(--line); }
:root[data-theme="dark"] .pdf-toolbar,
:root[data-theme="dark"] .integrated-pdf-toolbar { background: #101d2c; border-color: var(--line); color: var(--ink); }
:root[data-theme="dark"] .pdf-toolbar button,
:root[data-theme="dark"] .pdf-page-controls,
:root[data-theme="dark"] .pdf-zoom-controls { background: #172536; border-color: var(--line); color: var(--ink); }
:root[data-theme="dark"] .question-source-material--preview>span b { color: var(--ink); }
:root[data-theme="dark"] .question-source-material>b,
:root[data-theme="dark"] .question-source-material>small,
:root[data-theme="dark"] .question-source-material--preview>span em { color: var(--ink); }
:root[data-theme="dark"] .question-source-material--preview>button { background: #172536; border-color: #355b59; color: #8de0d6; }
:root[data-theme="dark"] .empty-state { border-color: #3a4a5c; }
:root[data-theme="dark"] .material-comment-list p,
:root[data-theme="dark"] .auth-form label,
:root[data-theme="dark"] .modal-form label,
:root[data-theme="dark"] .option,
:root[data-theme="dark"] .invite-notice { color: #c2cfdb; }
:root[data-theme="dark"] .locked-note,
:root[data-theme="dark"] .material-comment-button { background: #121f30; border-color: var(--line); color: #9cc8c2; }

@media (max-width: 760px) {
  .theme-toggle { width: 44px; height: 44px; right: 12px; bottom: 126px; padding: 0; border-radius: 50%; }
  .theme-toggle span { display: none; }
}

/* Native PDF preview and learner achievement center */
.modal--native-pdf .modal-body { overflow: hidden; }
.native-pdf-reader { min-height: 0; flex: 1; display: flex; flex-direction: column; background: #39434c; }
.native-pdf-toolbar { flex: 0 0 auto; }
.native-pdf-toolbar > small { margin-right: auto; }
.native-pdf-stage { min-height: 0; flex: 1; position: relative; overflow: hidden; background: #39434c; }
.native-pdf-frame { width: 100%; height: 100%; display: block; border: 0; background: #525b63; }
.native-pdf-stage > .pdf-reader-loading { position: absolute; z-index: 2; }
.material-preview-layout { min-width: 0; min-height: 0; flex: 1; display: grid; grid-template-columns: minmax(0,1fr) clamp(310px,27vw,380px); overflow: hidden; background: #39434c; }
.material-preview-layout > .native-pdf-reader,
.material-preview-layout > .material-preview-canvas,
.material-preview-layout > .protected-pdf-preview { min-width: 0; min-height: 0; height: 100%; }
.material-preview-canvas { display: flex; flex-direction: column; background: #39434c; }
.material-preview-comments { min-width: 0; min-height: 0; display: grid; grid-template-rows: auto minmax(0,1fr); overflow: hidden; border-left: 1px solid var(--line); background: var(--paper); }
.material-preview-comments > header { min-height: 66px; padding: 13px 15px; display: flex; align-items: center; justify-content: space-between; gap: 12px; border-bottom: 1px solid var(--line); }
.material-preview-comments > header span { color: var(--teal); font-size: 7px; letter-spacing: .15em; }
.material-preview-comments > header h3 { margin: 4px 0 0; color: var(--navy-2); font: 600 18px "Noto Serif SC",serif; }
.preview-comments-heading-actions { display: flex; align-items: center; gap: 7px; }
.preview-comments-heading-actions > b { padding: 5px 8px; border-radius: 14px; background: var(--teal-soft); color: var(--success); font-size: 8px; white-space: nowrap; }
.preview-comments-heading-actions > button { width: 30px; height: 30px; display: none; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: var(--paper); color: var(--muted); font-size: 19px; line-height: 1; }
.material-preview-layout.comments-hidden { grid-template-columns: minmax(0,1fr); }
.material-preview-layout.comments-hidden > .material-preview-comments { display: none; }
.material-preview-comments .material-comments-shell { height: 100%; grid-template-rows: auto minmax(0,1fr); }
.material-preview-comments .material-comment-form { padding: 13px; grid-template-columns: 1fr; align-items: stretch; gap: 8px; }
.material-preview-comments .material-comment-form textarea { min-height: 72px; resize: vertical; }
.material-preview-comments .material-comment-form .button { width: 100%; min-height: 36px; }
.material-preview-comments .material-comment-list { padding: 11px; gap: 8px; }
.material-preview-comments .material-comment-list > article { padding: 11px; grid-template-columns: 32px minmax(0,1fr); gap: 8px; }
.material-preview-comments .comment-avatar { width: 31px; height: 31px; font-size: 10px; }
.material-preview-comments .material-comment-list header { align-items: flex-start; flex-wrap: wrap; gap: 3px 6px; }
.material-preview-comments .material-comment-list header time { width: 100%; margin-left: 0; }
.material-preview-comments .comment-delete { grid-column: 2; justify-self: start; }

.achievement-hero { min-height: 235px; margin-bottom: 16px; padding: 34px 42px; display: grid; grid-template-columns: minmax(0,1fr) auto; align-items: center; gap: 36px; overflow: hidden; position: relative; border-radius: 11px; background: linear-gradient(125deg,#061b38 0%,#0b4f82 62%,#0c8178 100%); color: white; box-shadow: 0 20px 48px rgba(7,37,67,.12); }
.achievement-hero::after { content: ""; width: 330px; height: 330px; position: absolute; right: -115px; top: -145px; border: 1px solid rgba(255,255,255,.18); border-radius: 50%; box-shadow: 0 0 0 46px rgba(255,255,255,.025),0 0 0 92px rgba(255,255,255,.018); pointer-events: none; }
.achievement-level { min-width: 0; position: relative; z-index: 1; }
.achievement-level > span { color: #80ddd4; font-size: 8px; letter-spacing: .18em; }
.achievement-level h2 { margin: 8px 0 4px; font: 600 34px "Noto Serif SC",serif; }
.achievement-level p { margin: 0; color: rgba(255,255,255,.68); font-size: 11px; }
.achievement-level p strong { margin-right: 3px; color: #8de7dd; font-size: 19px; }
.achievement-level-progress { width: min(470px,100%); height: 5px; margin: 23px 0 8px; overflow: hidden; border-radius: 4px; background: rgba(255,255,255,.15); }
.achievement-level-progress i,.achievement-progress i { width: var(--achievement-progress); height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg,#79dfd3,#fff0a9); transition: width .3s ease; }
.achievement-level > small { color: rgba(255,255,255,.48); font-size: 8px; }
.achievement-count { width: 142px; height: 142px; position: relative; z-index: 1; display: grid; grid-template-columns: auto auto; place-content: center; align-items: end; border: 1px solid rgba(255,255,255,.32); border-radius: 50%; background: rgba(255,255,255,.06); box-shadow: 0 0 0 13px rgba(255,255,255,.025); }
.achievement-count strong { color: #8de7dd; font: 45px "Noto Serif SC",serif; }
.achievement-count > span { padding-bottom: 8px; color: rgba(255,255,255,.45); font-size: 12px; }
.achievement-count small { grid-column: 1/-1; text-align: center; color: rgba(255,255,255,.58); font-size: 8px; }
.achievement-metrics { margin-bottom: 23px; display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 8px; }
.achievement-metrics article { min-width: 0; min-height: 88px; padding: 14px; display: grid; grid-template-columns: auto minmax(0,1fr); align-items: center; gap: 4px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--paper); }
.achievement-metrics svg { grid-row: 1 / span 2; color: var(--teal); }
.achievement-metrics span { color: var(--muted); font-size: 8px; }
.achievement-metrics strong { overflow-wrap: anywhere; color: var(--navy-2); font: 600 15px "Noto Serif SC",serif; }
.achievement-toolbar { min-height: 62px; margin-bottom: 11px; padding: 0 4px; display: flex; align-items: center; justify-content: space-between; gap: 18px; }
.achievement-toolbar > div:first-child { display: grid; gap: 3px; }
.achievement-toolbar b { color: var(--navy-2); font-size: 16px; }
.achievement-toolbar span { color: var(--muted); font-size: 8px; }
.achievement-toolbar [role="group"] { padding: 4px; display: flex; gap: 3px; border: 1px solid var(--line); border-radius: 7px; background: var(--paper); }
.achievement-toolbar button { min-height: 31px; padding: 0 12px; border: 0; border-radius: 5px; background: transparent; color: var(--muted); font-size: 9px; }
.achievement-toolbar button.active { background: var(--blue); color: white; }
.achievement-wall { display: grid; gap: 14px; }
.achievement-category { padding: 19px; border: 1px solid var(--line); border-radius: 9px; background: var(--paper); }
.achievement-category > header { min-height: 48px; display: flex; align-items: start; justify-content: space-between; gap: 18px; border-bottom: 1px solid var(--line-soft); }
.achievement-category > header span { color: var(--navy-2); font-size: 13px; font-weight: 700; }
.achievement-category > header p { margin: 3px 0 0; color: var(--muted); font-size: 8px; }
.achievement-category > header > b { padding: 4px 8px; border-radius: 14px; background: #eaf5f2; color: var(--success); font-size: 9px; }
.achievement-grid { padding-top: 14px; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 10px; }
.achievement-card { min-width: 0; min-height: 145px; padding: 15px; display: grid; grid-template-columns: 62px minmax(0,1fr); gap: 14px; border: 1px solid var(--line); border-radius: 8px; background: #fbfcfb; }
.achievement-card[hidden],.achievement-category[hidden] { display: none; }
.achievement-medal { width: 58px; height: 58px; display: grid; place-content: center; justify-items: center; gap: 4px; border-radius: 50%; background: #edf1f1; color: #829099; }
.achievement-medal small { font-size: 6px; letter-spacing: .05em; }
.achievement-card-copy { min-width: 0; }
.achievement-card-copy > header { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.achievement-card-copy > header span { color: #8c999e; font-size: 7px; letter-spacing: .08em; }
.achievement-card-copy h3 { margin: 0; color: var(--navy-2); font: 600 15px "Noto Serif SC",serif; }
.achievement-card-copy > p { min-height: 34px; margin: 7px 0 10px; color: var(--muted); font-size: 9px; line-height: 1.55; }
.achievement-progress { height: 4px; overflow: hidden; border-radius: 3px; background: #e7edec; }
.achievement-progress i { background: #aab7bb; }
.achievement-card footer { margin-top: 8px; display: flex; justify-content: space-between; gap: 8px; color: #87949a; font-size: 7px; }
.achievement-card footer b { color: #66777f; font-size: 8px; }
.achievement-card.is-unlocked { border-color: #b8ddd6; background: linear-gradient(130deg,#f4fbf8,#fbfdf9); box-shadow: 0 9px 24px rgba(18,105,91,.06); }
.achievement-card.is-unlocked .achievement-medal { background: linear-gradient(145deg,#0b5483,#0b9a87); color: white; box-shadow: 0 9px 20px rgba(10,116,105,.2); }
.achievement-card.is-unlocked .achievement-card-copy > header span { color: var(--success); }
.achievement-card.is-unlocked .achievement-progress i { background: linear-gradient(90deg,var(--teal),#e9b94b); }
.certificate-priority { margin-bottom: 32px; }
.certificate-priority .certificate-grid { grid-template-columns: repeat(auto-fit,minmax(min(460px,100%),720px)); }
.certificate-section-heading { min-height: 105px; margin-top: 0; padding: 0 4px 14px; display: flex; align-items: end; justify-content: space-between; gap: 20px; border-bottom: 1px solid var(--line); }
.certificate-section-heading span { color: var(--teal); font-size: 7px; letter-spacing: .16em; }
.certificate-section-heading h2 { margin: 6px 0 3px; color: var(--navy-2); font: 600 25px "Noto Serif SC",serif; }
.certificate-section-heading p { margin: 0; color: var(--muted); font-size: 9px; }
.certificate-section-heading > b { color: var(--blue); font: 24px "Noto Serif SC",serif; }
.certificate-section-heading + .certificate-grid { margin-top: 18px; }

:root[data-theme="dark"] .achievement-metrics article,
:root[data-theme="dark"] .achievement-toolbar [role="group"],
:root[data-theme="dark"] .achievement-category,
:root[data-theme="dark"] .achievement-card { background: var(--paper); border-color: var(--line); }
:root[data-theme="dark"] .achievement-card.is-unlocked { background: #102824; border-color: #2d6b62; }
:root[data-theme="dark"] .challenge-history-summary { background: linear-gradient(120deg,#102824,#101d2a); border-color: #2d6b62; }
:root[data-theme="dark"] .achievement-medal { background: #1a2938; color: #91a1b0; }
:root[data-theme="dark"] .achievement-progress { background: #263646; }
:root[data-theme="dark"] .achievement-category > header > b { background: #123a34; }

/* Compact PDF controls on phones: preserve the viewport for the document itself. */
@media (max-width: 760px) {
  .modal--reader > header {
    min-height: 42px;
    height: 42px;
    padding: 4px 8px;
    flex: 0 0 42px;
  }
  .modal--reader > header .micro-label { display: none; }
  .modal--reader > header h2 {
    max-width: calc(100vw - 70px);
    margin: 0;
    font-size: 12px;
    line-height: 1.2;
  }
  .modal--reader > header .icon-button {
    width: 29px;
    height: 29px;
    min-height: 29px;
    padding: 0;
    flex: 0 0 29px;
  }
  .modal--reader .integrated-pdf-toolbar,
  .modal--reader .native-pdf-toolbar {
    min-height: 39px;
    height: 39px;
    padding: 3px 5px;
    gap: 4px;
    flex: 0 0 39px;
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    white-space: nowrap;
    scrollbar-width: none;
    touch-action: pan-x;
  }
  .modal--reader .integrated-pdf-toolbar::-webkit-scrollbar,
  .modal--reader .native-pdf-toolbar::-webkit-scrollbar { display: none; }
  .modal--reader .pdf-page-controls,
  .modal--reader .pdf-zoom-controls {
    min-height: 31px;
    padding: 1px;
    gap: 1px;
    flex: 0 0 auto;
  }
  .modal--reader .pdf-page-controls button,
  .modal--reader .pdf-zoom-controls button {
    min-width: 27px;
    width: 27px;
    min-height: 27px;
    height: 27px;
    padding: 0;
  }
  .modal--reader .pdf-page-controls label { gap: 2px; padding: 0 3px; }
  .modal--reader .pdf-page-controls input { width: 31px; height: 25px; }
  .modal--reader .pdf-zoom-controls > span { display: none; }
  .modal--reader .integrated-pdf-toolbar > button,
  .modal--reader .native-pdf-toolbar > button {
    min-height: 29px;
    height: 29px;
    padding: 0 7px;
    flex: 0 0 auto;
    font-size: 9px;
  }
  .modal--reader .pdf-reader-stage { padding: 6px; }
  .modal--reader .paged-pdf-stage { padding: 6px; }
  .modal--reader:fullscreen > header,
  .modal--reader:-webkit-full-screen > header,
  .modal--reader.is-reader-fullscreen > header { display: none; }
  .pdf-edge-nav-button {
    width: 43px;
    height: 108px;
    font-size: 31px;
    opacity: .38;
    transform: translateY(-34%);
  }
  .pdf-edge-nav-button--prev { left: 0; }
  .pdf-edge-nav-button--next { right: 0; }
  .pdf-navigation-hint { min-width: 205px; padding: 12px 16px; font-size: 11px; }
}

@media (orientation: landscape) and (max-height: 560px) and (max-width: 1000px) {
  .modal-backdrop { padding: 2px; }
  .modal--reader {
    width: calc(100vw - 4px);
    max-width: calc(100vw - 4px);
    height: calc(100dvh - 4px);
    max-height: calc(100dvh - 4px);
    border-radius: 4px;
  }
  .modal--reader > header {
    min-height: 32px;
    height: 32px;
    padding: 2px 6px;
    flex-basis: 32px;
  }
  .modal--reader > header h2 {
    max-width: calc(100vw - 58px);
    font-size: 10px;
  }
  .modal--reader > header .icon-button {
    width: 25px;
    height: 25px;
    min-height: 25px;
    flex-basis: 25px;
  }
  .modal--reader .integrated-pdf-toolbar,
  .modal--reader .native-pdf-toolbar {
    min-height: 33px;
    height: 33px;
    padding: 2px 4px;
    flex-basis: 33px;
  }
  .modal--reader .pdf-page-controls,
  .modal--reader .pdf-zoom-controls { min-height: 27px; }
  .modal--reader .pdf-page-controls button,
  .modal--reader .pdf-zoom-controls button {
    min-width: 23px;
    width: 23px;
    min-height: 23px;
    height: 23px;
    font-size: 13px;
  }
  .modal--reader .pdf-page-controls input { width: 28px; height: 22px; }
  .modal--reader .integrated-pdf-toolbar > button,
  .modal--reader .native-pdf-toolbar > button {
    min-height: 25px;
    height: 25px;
    padding-inline: 6px;
  }
  .modal--reader .pdf-reader-stage,
  .modal--reader .paged-pdf-stage { padding: 3px; }
  .modal--reader .pdf-reader-loading { gap: 5px; }
  .modal--reader .pdf-reader-loading .loader-orbit { width: 32px; height: 32px; }
  .pdf-edge-nav-button { width: 40px; height: 82px; font-size: 27px; transform: translateY(-25%); }
  .pdf-navigation-hint { top: 54%; padding-block: 9px; }
}

@media (max-width: 1100px) and (min-width: 761px) {
  .achievement-metrics { grid-template-columns: repeat(3,minmax(0,1fr)); }
}

@media (max-width: 760px) {
  .native-pdf-toolbar > small,.native-pdf-toolbar .active-study-time { display: none; }
  .native-pdf-toolbar { min-height: 50px; padding: 7px 8px; flex-wrap: wrap; }
  .native-pdf-toolbar > span:first-child { margin-right: auto; }
  .material-preview-layout { position: relative; grid-template-columns: minmax(0,1fr); grid-template-rows: minmax(0,1fr); }
  .material-preview-layout > .native-pdf-reader,
  .material-preview-layout > .material-preview-canvas,
  .material-preview-layout > .protected-pdf-preview { height: 100%; }
  .material-preview-comments { display: none; position: absolute; z-index: 12; inset: 0; border-left: 0; border-top: 1px solid var(--line); box-shadow: 0 -18px 45px rgba(5,25,47,.24); }
  .material-preview-layout.comments-visible > .material-preview-comments { display: grid; }
  .preview-comments-heading-actions > button { display: grid; }
  .material-preview-comments > header { min-height: 52px; padding-block: 8px; }
  .material-preview-comments > header h3 { font-size: 15px; }
  .material-preview-comments .material-comment-form { padding: 9px 11px; }
  .material-preview-comments .material-comment-form textarea { min-height: 56px; }
  .achievement-hero { min-height: 260px; padding: 27px 23px; grid-template-columns: minmax(0,1fr) 94px; gap: 14px; }
  .achievement-level h2 { font-size: 27px; }
  .achievement-count { width: 91px; height: 91px; }
  .achievement-count strong { font-size: 30px; }
  .achievement-count > span { padding-bottom: 5px; font-size: 9px; }
  .achievement-count small { font-size: 6px; }
  .achievement-metrics { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .achievement-toolbar { align-items: stretch; flex-direction: column; }
  .achievement-toolbar [role="group"] { display: grid; grid-template-columns: repeat(3,1fr); }
  .achievement-category { padding: 14px; }
  .achievement-grid { grid-template-columns: 1fr; }
  .achievement-card { grid-template-columns: 52px minmax(0,1fr); gap: 10px; padding: 13px; }
  .achievement-medal { width: 49px; height: 49px; }
  .achievement-card-copy > header { align-items: start; flex-direction: column-reverse; gap: 2px; }
  .achievement-card footer { align-items: flex-start; flex-direction: column; }
  .certificate-section-heading { align-items: start; flex-direction: column; }
  .challenge-history-summary { align-items: stretch; flex-direction: column; padding: 18px; }
  .challenge-history-summary > .button { width: 100%; }
  .admin-section-heading { align-items: start; flex-direction: column; }
  .overview-level-badge { width: 104px; min-height: 104px; padding: 13px 8px; box-shadow: 0 0 0 8px rgba(255,255,255,.025); }
  .overview-level-badge strong { font-size: 17px; }
}

/* Responsive UX and progressive document reader */
.loading-screen > p { margin: 0; color: var(--navy-2); font-size: 13px; font-weight: 700; }
.loading-quote { width: min(430px,calc(100vw - 48px)); margin: 2px 0 0; padding-top: 15px; display: grid; gap: 7px; border-top: 1px solid rgba(104,119,137,.18); color: var(--muted); text-align: center; }
.loading-quote q { font: 500 13px/1.75 "Noto Serif SC",serif; }
.loading-quote cite { color: #8b989e; font-size: 9px; font-style: normal; letter-spacing: .05em; }
.pdf-reader-loading { opacity: 0; visibility: hidden; pointer-events: none; transition: opacity .18s ease,visibility .18s ease; }
.pdf-reader-loading.is-visible { opacity: 1; visibility: visible; pointer-events: auto; }
.pdf-reader-loading .loading-quote { width: min(360px,calc(100% - 36px)); padding-top: 12px; border-top-color: rgba(255,255,255,.14); color: rgba(255,255,255,.78); }
.pdf-reader-loading .loading-quote q { font-size: 11px; }
.pdf-reader-loading .loading-quote cite { color: rgba(255,255,255,.48); }
.reader-loading-progress { width: min(270px,58%); height: 3px; overflow: hidden; border-radius: 3px; background: rgba(255,255,255,.13); }
.reader-loading-progress i { width: 42%; height: 100%; display: block; border-radius: inherit; background: linear-gradient(90deg,transparent,#77dcd2,transparent); animation: reader-loading-slide 1.25s ease-in-out infinite; }
@keyframes reader-loading-slide { from { transform: translateX(-115%); } to { transform: translateX(340%); } }
.pdf-page-frame { transform-origin: 50% 0; transition: opacity .16s ease,transform .16s ease,width .14s ease,height .14s ease; }
.pdf-page-frame.is-page-changing { opacity: .62; transform: scale(.992); }
.pdf-page-frame.is-pinching { z-index: 6; transition: none!important; will-change: transform; }
.modal--reader { width: calc(100vw - 32px); max-width: 1560px; height: calc(100vh - 32px); height: calc(100dvh - 32px); max-height: calc(100dvh - 32px); }
.modal--reader .integrated-pdf-toolbar { flex-wrap: nowrap; white-space: nowrap; overflow-x: auto; overflow-y: hidden; scrollbar-width: thin; }
.modal--reader .integrated-pdf-toolbar > button { min-height: 34px; justify-content: center; }
.paged-pdf-stage { touch-action: pan-x pan-y; }
.pdf-edge-nav-button { opacity: .18; }
.pdf-edge-nav-button svg { width: 34px; height: 34px; }
body.has-open-modal .theme-toggle { opacity: 0; visibility: hidden; pointer-events: none; }

@media (pointer: coarse) {
  .pdf-edge-nav-button { opacity: .3; }
  .pdf-edge-nav-button:active { opacity: .82; background: rgba(10,80,112,.54); }
}

@media (max-width: 760px) {
  .public-header { height: 64px; padding-inline: 9px; grid-template-columns: minmax(0,1fr) auto; gap: 6px; }
  .public-header .brand-symbol { width: 28px; height: 32px; margin-right: -9px; transform: scale(.66) rotate(-7deg); }
  .public-header .brand-copy strong { font-size: 13px; letter-spacing: .04em; }
  .home-brand-lockup { gap: 5px; }
  .home-brand-divider { height: 20px; }
  .home-company-logo { width: 54px; }
  .header-actions { gap: 4px; }
  .header-actions .button--ghost { display: inline-flex; }
  .header-actions .button { min-height: 36px; padding-inline: 8px; border-radius: 6px; font-size: 9px; white-space: nowrap; }
  .header-actions .button svg { display: none; }
  .academy-hero { min-height: 690px; }
  .hero-copy { padding: 56px 18px 145px; }
  .hero-copy .eyebrow { margin-bottom: 16px; font-size: 10px; line-height: 1.6; letter-spacing: .08em; }
  .hero-copy h1 { width: 100%; font-size: clamp(31px,9.1vw,36px); line-height: 1.3; letter-spacing: -.045em; }
  .hero-copy h1 br { display: none; }
  .hero-lead { margin: 20px 0 22px; font-size: 13px; line-height: 1.75; }
  .hero-actions .button { min-height: 50px; padding-inline: 15px; font-size: 13px; }
  .hero-trust { width: 100%; margin-top: 26px; padding-top: 17px; display: grid; grid-template-columns: 1fr 1fr; gap: 10px; font-size: 10px; }
  .hero-trust span:last-child { grid-column: 1 / -1; }
  .hero-lab { inset: auto -95px -25px 80px; height: 300px; opacity: .23; }
  .glass-console { top: 18px; transform: scale(.66); transform-origin: right top; }
  .theme-toggle { right: 10px; bottom: 12px; }
  .portal-body-bg .theme-toggle,
  .admin-body-bg .theme-toggle { bottom: 80px; }

  .portal-header { height: 60px; padding-inline: 9px; }
  .portal-shell { grid-template-rows: 60px minmax(0,1fr); }
  .portal-header .brand-copy strong { font-size: 14px; }
  .portal-user { gap: 7px; }
  .portal-user strong { max-width: 84px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 11px; }
  .portal-user .icon-button { width: 34px; height: 34px; }
  .portal-sidebar,
  .admin-sidebar { height: 68px; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; }
  .portal-sidebar::-webkit-scrollbar,
  .admin-sidebar::-webkit-scrollbar { display: none; }
  .portal-sidebar nav,
  .admin-sidebar nav { width: max-content; min-width: 100%; height: 68px; display: flex; grid-auto-rows: auto; }
  .portal-sidebar nav button,
  .admin-sidebar nav button { min-width: 68px; height: 68px; padding: 6px 5px 5px; flex: 1 0 68px; display: flex; flex-direction: column; justify-content: center; gap: 3px; font-size: 7px; line-height: 1.15; }
  .portal-sidebar nav button span { display: block; max-width: 62px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .portal-sidebar nav button.active,
  .admin-sidebar nav button.active { box-shadow: inset 0 3px var(--teal); }
  .portal-main,
  .admin-main { padding: 22px 14px 94px; }
  .page-heading,
  .admin-page-heading { margin-bottom: 20px; gap: 13px; }
  .page-heading h1,
  .admin-page-heading h1 { font-size: 27px; line-height: 1.25; }

  .modal-backdrop { padding: 0; background: #1f2b35; backdrop-filter: none; }
  .modal--reader { width: 100vw; max-width: 100vw; height: 100vh; height: 100dvh; max-height: 100dvh; border-radius: 0; }
  .modal--reader > header { min-height: 43px; height: 43px; padding: 4px 8px; flex: 0 0 43px; }
  .modal--reader > header h2 { max-width: calc(100vw - 58px); font-size: 11px; }
  .modal--reader > header .icon-button { width: 34px; height: 34px; min-height: 34px; flex-basis: 34px; }
  .modal--reader .integrated-pdf-toolbar,
  .modal--reader .native-pdf-toolbar { min-height: 43px; height: 43px; padding: 4px 6px; gap: 4px; flex: 0 0 43px; flex-wrap: nowrap; overflow-x: auto; }
  .modal--reader .integrated-pdf-toolbar > span:first-child,
  .modal--reader .integrated-pdf-toolbar > small,
  .modal--reader .integrated-pdf-toolbar > .active-study-time,
  .modal--reader .integrated-pdf-toolbar > [data-resume],
  .modal--reader .integrated-pdf-toolbar > [data-report] { display: none; }
  .modal--reader .pdf-page-controls,
  .modal--reader .pdf-zoom-controls { min-height: 35px; height: 35px; padding: 1px; gap: 1px; }
  .modal--reader .pdf-page-controls button,
  .modal--reader .pdf-zoom-controls button { min-width: 33px; width: 33px; min-height: 33px; height: 33px; padding: 0; }
  .modal--reader .pdf-page-controls label { height: 33px; padding-inline: 3px; }
  .modal--reader .pdf-page-controls input { width: 34px; height: 29px; }
  .modal--reader .pdf-zoom-controls > span { display: none; }
  .modal--reader .integrated-pdf-toolbar > button { width: 35px; min-width: 35px; min-height: 35px; height: 35px; padding: 0; }
  .modal--reader .integrated-pdf-toolbar > button > span { display: none; }
  .modal--reader .pdf-reader-stage,
  .modal--reader .paged-pdf-stage { padding: 4px; }
  .pdf-reader-loading { gap: 8px; padding: 18px; }
  .pdf-reader-loading .loader-orbit { width: 38px; height: 38px; }
  .pdf-reader-loading .loading-quote { width: min(310px,calc(100vw - 52px)); padding-top: 10px; }
  .pdf-reader-loading .loading-quote q { font-size: 10px; }
  .reader-loading-progress { width: min(235px,68%); }
  .pdf-edge-nav-button { width: 47px; height: 100px; border-color: transparent; background: rgba(8,24,38,.2); opacity: .42; }
  .pdf-edge-nav-button svg { width: 29px; height: 29px; }
  .pdf-navigation-hint { width: min(286px,calc(100vw - 42px)); min-width: 0; }
}

@media (orientation: landscape) and (max-height: 560px) and (max-width: 1000px) {
  .modal--reader > header { min-height: 31px; height: 31px; flex-basis: 31px; }
  .modal--reader > header .micro-label { display: none; }
  .modal--reader > header h2 { max-width: calc(100vw - 48px); margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 10px; line-height: 1.2; }
  .modal--reader > header .icon-button { width: 27px; height: 27px; min-height: 27px; flex-basis: 27px; }
  .modal--reader .integrated-pdf-toolbar,
  .modal--reader .native-pdf-toolbar { min-height: 37px; height: 37px; padding: 3px 5px; gap: 4px; flex-basis: 37px; flex-wrap: nowrap; overflow-x: auto; }
  .modal--reader .integrated-pdf-toolbar > span:first-child,
  .modal--reader .integrated-pdf-toolbar > small,
  .modal--reader .integrated-pdf-toolbar > .active-study-time,
  .modal--reader .integrated-pdf-toolbar > [data-resume],
  .modal--reader .integrated-pdf-toolbar > [data-report] { display: none; }
  .modal--reader .pdf-page-controls,
  .modal--reader .pdf-zoom-controls { min-height: 31px; height: 31px; }
  .modal--reader .pdf-page-controls button,
  .modal--reader .pdf-zoom-controls button,
  .modal--reader .integrated-pdf-toolbar > button { min-height: 29px; height: 29px; }
  .modal--reader .pdf-page-controls button,
  .modal--reader .pdf-zoom-controls button { min-width: 29px; width: 29px; }
  .pdf-reader-loading .loading-quote { display: none; }
  .reader-loading-progress { width: 190px; }
  .pdf-edge-nav-button { width: 45px; height: 74px; transform: translateY(-12%); }
  .modal--reader:fullscreen > header,
  .modal--reader:-webkit-full-screen > header,
  .modal--reader.is-reader-fullscreen > header { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .reader-loading-progress i { animation: none; width: 100%; opacity: .65; }
  .pdf-reader-loading,
  .pdf-page-frame { transition: none; }
}