/* ==========================================================================
   世界音乐大学 · WORLD MUSIC COLLEGE
   Design system: "Academic Letterpress × Arcade Holography"
   --------------------------------------------------------------------------
   Layer 1  reset / tokens
   Layer 2  typography
   Layer 3  layout primitives
   Layer 4  chrome (topbar / masthead / footer)
   Layer 5  hero + engraved plate
   Layer 6  components
   Layer 7  page modules
   Layer 8  motion / reveal
   Layer 9  utilities
   Layer 10 responsive + print
   ========================================================================== */

/* ---------------------------------------------------------------- 1. base */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

:root {
  /* — paper & ink — */
  --paper: #f4f0e6;
  --paper-2: #ece5d5;
  --paper-3: #e2d9c4;
  --ink: #12141a;
  --ink-soft: #2c313c;
  --ink-mute: #5c6472;
  --ink-faint: #6b7280;
  --rule: #d6cdb8;
  --rule-soft: #e3dbc9;

  /* — institutional metal — */
  --brass: #a47c3c;
  --brass-lt: #c9a45c;
  --brass-dk: #7a5a28;

  /* — arcade layer — */
  --magenta: #e4007f;
  --magenta-soft: #ff5fae;
  --cyan: #00aebc;
  --cyan-soft: #4fd6df;
  --violet: #5b3fc4;
  --lime: #a8d42b;

  /* — type — */
  --serif: "Instrument Serif", "Noto Serif SC", "Songti SC", "Source Han Serif SC",
    "Source Han Serif CN", "STSong", "SimSun", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;

  /* — metrics — */
  --wrap: 1240px;
  --gutter: clamp(1.25rem, 5vw, 3.5rem);
  --s1: 0.5rem;
  --s2: 1rem;
  --s3: 1.75rem;
  --s4: 3rem;
  --s5: 5rem;
  --s6: 8rem;
  --hair: 1px;
  --radius: 2px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: clamp(0.95rem, 0.35vw + 0.88rem, 1.05rem);
  line-height: 1.75;
  font-feature-settings: "palt" 1;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* paper grain, fixed so it never drags */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: 0.5;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.075'/%3E%3C/svg%3E");
}

img,
svg,
video { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }

::selection { background: var(--magenta); color: #fff; }

:focus-visible {
  outline: 2px solid var(--magenta);
  outline-offset: 3px;
}

/* ----------------------------------------------------------- 2. typography */

h1, h2, h3, h4, h5 {
  font-family: var(--serif);
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: 0.005em;
  margin: 0;
  text-wrap: balance;
}

.h-display {
  font-size: clamp(3.1rem, 9.2vw, 7.6rem);
  line-height: 0.94;
  letter-spacing: -0.015em;
}

.h-xl { font-size: clamp(2.2rem, 5vw, 3.9rem); line-height: 1.02; }
.h-lg { font-size: clamp(1.7rem, 3vw, 2.5rem); line-height: 1.12; }
.h-md { font-size: clamp(1.28rem, 1.6vw, 1.6rem); line-height: 1.25; }
.h-sm { font-size: 1.06rem; line-height: 1.35; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

.lede {
  font-family: var(--serif);
  font-size: clamp(1.14rem, 1.5vw, 1.45rem);
  line-height: 1.62;
  color: var(--ink-soft);
  text-wrap: pretty;
}

.mono,
.eyebrow,
.kicker,
.label {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
  line-height: 1.5;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.7em;
  margin-bottom: var(--s3);
}
.eyebrow::before {
  content: "";
  width: 2.2em;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.serif { font-family: var(--serif); }
.italic { font-style: italic; }
.tnum { font-variant-numeric: tabular-nums; }

/* underline that looks printed, not hyperlinked */
.link {
  border-bottom: 1px solid color-mix(in srgb, currentColor 35%, transparent);
  padding-bottom: 0.06em;
  transition: border-color 0.25s, color 0.25s;
}
.link:hover { border-bottom-color: var(--magenta); color: var(--magenta); }

/* -------------------------------------------------- 3. layout primitives */

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.wrap--narrow { max-width: 860px; }
.wrap--wide { max-width: 1480px; }

.section { padding-block: clamp(3.5rem, 7vw, 7rem); position: relative; }
.section--tight { padding-block: clamp(2.5rem, 4vw, 4rem); }

.grid { display: grid; gap: var(--s4); }
.grid-2 { display: grid; gap: var(--s4); grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { display: grid; gap: var(--s3); grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { display: grid; gap: var(--s3); grid-template-columns: repeat(4, minmax(0, 1fr)); }
/* the explicit 1fr column is load-bearing: it gives the grid a definite
   area so tables/flex children inside .span-* can shrink below content size */
.grid-12 { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: var(--s4); }

/* Grid/flex children default to min-width:auto, which lets an unbreakable
   child (a table, a long row of fixed columns) push the whole page wider than
   the viewport. Zeroing it lets the child shrink and scroll instead. */
.grid > *,
.grid-2 > *,
.grid-3 > *,
.grid-4 > *,
.grid-12 > *,
.strip > *,
.board > *,
.judge > * { min-width: 0; }

/* tables that must scroll inside a column (not push the page wide) */
.scroller { overflow-x: auto; overscroll-behavior-x: contain; -webkit-overflow-scrolling: touch; min-width: 0; max-width: 100%; }
.scroller > .table { min-width: 40rem; }

.rule {
  height: 1px;
  border: 0;
  background: var(--rule);
  margin: 0;
}
.rule--orn {
  height: auto;
  background: none;
  border-top: 1px solid var(--rule);
  position: relative;
  text-align: center;
}
.rule--orn::before {
  content: "✦";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: var(--paper);
  color: var(--brass);
  font-size: 0.62rem;
  padding-inline: 0.9rem;
}

/* section heads: 01 — 学院设置 */
.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: var(--s3);
  padding-bottom: 1.1rem;
  border-bottom: 1px solid var(--ink);
  margin-bottom: var(--s4);
}
.section-head__no {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--brass);
  padding-bottom: 0.35rem;
}
.section-head__title {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.7em;
}
.section-head__en {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.section-head__aside {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  color: var(--ink-mute);
  text-align: right;
}

/* --------------------------------------------------------------- 4. chrome */

.topbar {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: relative;
  z-index: 40;
}
.topbar__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s2);
  min-height: 2.15rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.topbar__group { display: flex; align-items: center; gap: 1.1rem; }
.topbar__dot {
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--lime);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--lime) 22%, transparent);
  animation: pulse 3.2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.1);
  border-bottom: 1px solid var(--rule);
  transition: box-shadow 0.4s var(--ease), border-color 0.4s;
}
.masthead.is-stuck {
  box-shadow: 0 18px 40px -32px rgba(18, 20, 26, 0.55);
}
.masthead__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s3);
  min-height: 4.6rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-shrink: 0;
}
.brand__mark { width: 34px; height: 34px; flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1.1; }
.brand__cn {
  font-family: var(--serif);
  font-size: 1.16rem;
  letter-spacing: 0.06em;
}
.brand__en {
  font-family: var(--mono);
  font-size: 0.52rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 0.28rem;
}

.nav { display: flex; align-items: center; gap: 1.6rem; }
.nav__link {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  position: relative;
  padding-block: 0.35rem;
  transition: color 0.25s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.1rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease);
}
.nav__link:hover { color: var(--ink); }
.nav__link:hover::after,
.nav__link[aria-current="page"]::after { transform: scaleX(1); }
.nav__link[aria-current="page"] { color: var(--ink); }

.nav__cta {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  border: 1px solid var(--ink);
  padding: 0.62rem 1.05rem;
  transition: background 0.28s, color 0.28s;
  white-space: nowrap;
}
.nav__cta:hover { background: var(--ink); color: var(--paper); }

.nav-toggle {
  display: none;
  width: 2.4rem; height: 2.4rem;
  align-items: center; justify-content: center;
  border: 1px solid var(--rule);
}
.nav-toggle span {
  display: block; width: 16px; height: 1px; background: var(--ink); position: relative;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: ""; position: absolute; left: 0; width: 16px; height: 1px; background: var(--ink);
}
.nav-toggle span::before { top: -5px; }
.nav-toggle span::after { top: 5px; }

/* footer */
.footer {
  background: var(--ink);
  color: var(--paper);
  padding-top: clamp(3rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto auto;
  width: 46rem; height: 46rem;
  border: 1px solid rgba(244, 240, 230, 0.07);
  border-radius: 50%;
  pointer-events: none;
}
.footer a { color: inherit; }
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr);
  gap: var(--s4);
  padding-bottom: var(--s5);
  position: relative;
}
.footer__grid > * { min-width: 0; }
.footer__grid li { overflow-wrap: anywhere; }
.footer__crest { width: 92px; height: 92px; margin-bottom: var(--s3); opacity: 0.9; }
.footer__title {
  font-family: var(--serif);
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}
.footer__tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(244, 240, 230, 0.45);
}
.footer h2 {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass-lt);
  margin-bottom: 1.05rem;
  font-weight: 500;
}
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.footer li { font-size: 0.84rem; color: rgba(244, 240, 230, 0.72); }
.footer li a:hover { color: #fff; }
.footer__bottom {
  border-top: 1px solid rgba(244, 240, 230, 0.12);
  padding-block: 1.4rem 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(244, 240, 230, 0.42);
  position: relative;
}
.footer__disclaimer {
  font-size: 0.72rem;
  line-height: 1.7;
  color: rgba(244, 240, 230, 0.5);
  max-width: 46ch;
}

/* ------------------------------------------------------ 5. hero + plate */

.hero { position: relative; padding-block: clamp(2.5rem, 5vw, 4.5rem) clamp(2rem, 4vw, 3.5rem); }
.hero__inner {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero__title {
  font-family: var(--serif);
  font-size: clamp(2.9rem, 8.2vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  margin-bottom: 0.35em;
}
.hero__title span { display: block; }
.hero__title .latin {
  font-size: 0.19em;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  font-family: var(--mono);
  color: var(--ink-mute);
  margin-top: 1.4em;
  margin-left: 0.18em;
}
.hero__motto {
  display: inline-flex;
  align-items: center;
  gap: 0.75em;
  font-family: var(--serif);
  font-size: clamp(1rem, 1.3vw, 1.2rem);
  letter-spacing: 0.2em;
  color: var(--brass-dk);
  border-top: 1px solid var(--brass);
  border-bottom: 1px solid var(--brass);
  padding-block: 0.5em;
  margin-bottom: var(--s3);
  text-align: center;
}
.hero__lede { max-width: 34ch; margin-bottom: var(--s3); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.75rem; align-items: center; }
.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: var(--s4);
  padding-top: 1.1rem;
  border-top: 1px solid var(--rule);
}
.hero__meta div { display: flex; flex-direction: column; gap: 0.15rem; }
.hero__meta dt {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.hero__meta dd { margin: 0; font-family: var(--serif); font-size: 1.02rem; letter-spacing: 0.04em; }

/* the engraved plate */
.plate {
  position: relative;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.plate::before {
  content: "";
  position: absolute;
  inset: 6%;
  border: 1px solid var(--rule);
  border-radius: 50%;
}
.plate__art { width: 100%; height: auto; position: relative; z-index: 1; }
.plate__cap {
  position: absolute;
  bottom: -0.2rem;
  left: 0;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  z-index: 2;
}
.plate__art .ring-slow { transform-origin: 250px 250px; animation: spin 96s linear infinite; }
.plate__art .ring-rev { transform-origin: 250px 250px; animation: spin 140s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

/* corner ticks for figure frames */
.tick {
  position: absolute;
  width: 9px; height: 9px;
  border: 1px solid var(--ink);
  opacity: 0.45;
}
.tick--tl { top: 0; left: 0; border-right: 0; border-bottom: 0; }
.tick--tr { top: 0; right: 0; border-left: 0; border-bottom: 0; }
.tick--bl { bottom: 0; left: 0; border-right: 0; border-top: 0; }
.tick--br { bottom: 0; right: 0; border-left: 0; border-top: 0; }

/* stat strip */
.strip {
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
.strip__item {
  padding: 1.5rem 1.2rem 1.4rem;
  border-left: 1px solid var(--rule);
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.strip__item:first-child { border-left: 0; }
.strip__num {
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  line-height: 1;
  letter-spacing: -0.01em;
}
.strip__num small {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  margin-left: 0.4em;
  color: var(--ink-mute);
  vertical-align: 0.35em;
}
.strip__label {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ------------------------------------------------------------ 6. components */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 0.9rem 1.5rem;
  border: 1px solid var(--ink);
  position: relative;
  overflow: hidden;
  transition: color 0.3s var(--ease), border-color 0.3s;
  z-index: 0;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--ink);
  transform: translateY(101%);
  transition: transform 0.45s var(--ease);
  z-index: -1;
}
.btn:hover { color: var(--paper); }
.btn:hover::before { transform: translateY(0); }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid::before { background: var(--magenta); }
.btn--ghost { border-color: var(--rule); color: var(--ink-soft); }
.btn--ghost::before { background: var(--ink-soft); }
.btn__arrow { transition: transform 0.4s var(--ease); }
.btn:hover .btn__arrow { transform: translateX(4px); }

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4em;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3em 0.65em;
  border: 1px solid var(--rule);
  color: var(--ink-mute);
  line-height: 1.4;
}
.tag--live { border-color: color-mix(in srgb, var(--lime) 70%, var(--ink)); color: #4d6b00; }
.tag--hot { border-color: var(--magenta); color: var(--magenta); }
.tag--ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.tag--brass { border-color: var(--brass); color: var(--brass-dk); }

.card {
  position: relative;
  padding: var(--s3);
  background: color-mix(in srgb, #fff 34%, var(--paper));
  border: 1px solid var(--rule);
  transition: border-color 0.4s, transform 0.5s var(--ease), background 0.4s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s;
  background: linear-gradient(115deg, transparent 30%, rgba(228, 0, 127, 0.06) 45%, rgba(0, 174, 188, 0.07) 55%, transparent 70%);
  background-size: 220% 220%;
}
.card:hover {
  border-color: var(--ink);
  transform: translateY(-3px);
  background: #fbf8f1;
}
.card:hover::after { opacity: 1; animation: sheen 2.4s linear infinite; }
@keyframes sheen {
  0% { background-position: 120% 0; }
  100% { background-position: -20% 0; }
}
.card__no {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  color: var(--brass);
  margin-bottom: 1.1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.card__title { font-family: var(--serif); font-size: 1.42rem; letter-spacing: 0.03em; margin-bottom: 0.2rem; }
.card__en {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.9rem;
}
.card__body { font-size: 0.88rem; color: var(--ink-soft); line-height: 1.7; flex: 1; }
.card__foot {
  margin-top: 1.1rem;
  padding-top: 0.85rem;
  border-top: 1px dotted var(--rule);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
}

/* definition rows with dotted leaders */
.rows { border-top: 1px solid var(--ink); }
.rows__head,
.row {
  display: grid;
  grid-template-columns: 5.5rem 1fr 7rem 5rem;
  gap: 1rem;
  align-items: baseline;
  padding: 0.95rem 0.2rem;
  border-bottom: 1px solid var(--rule);
}
.rows__head {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-block: 0.6rem;
}
.row { transition: background 0.3s; }
.row:hover { background: color-mix(in srgb, #fff 40%, transparent); }
.row__key { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.08em; color: var(--brass-dk); }
.row__name { font-family: var(--serif); font-size: 1.06rem; letter-spacing: 0.02em; }
.row__name small { display: block; font-family: var(--sans); font-size: 0.74rem; color: var(--ink-mute); letter-spacing: 0.02em; margin-top: 0.15rem; }
.row__mid { font-size: 0.82rem; color: var(--ink-soft); }
.row__val { font-family: var(--mono); font-size: 0.7rem; text-align: right; letter-spacing: 0.08em; color: var(--ink-soft); }

/* long-form prose */
.prose { max-width: 68ch; }
.prose p { font-family: var(--serif); font-size: 1.1rem; line-height: 1.82; color: var(--ink-soft); }
.prose p + p { text-indent: 1.6em; }
.prose h3 { font-family: var(--serif); font-size: 1.5rem; margin: 2rem 0 0.8rem; }
.prose ul { padding-left: 1.1rem; }
.prose li { margin-bottom: 0.4rem; }

/* marginal note */
.note {
  border-left: 2px solid var(--brass);
  padding: 0.15rem 0 0.15rem 1rem;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--ink-mute);
}
.note strong { color: var(--ink); font-weight: 600; }
.note__label {
  display: block;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 0.4rem;
}

/* pull quote */
.quote {
  font-family: var(--serif);
  font-size: clamp(1.4rem, 2.6vw, 2rem);
  line-height: 1.42;
  letter-spacing: 0.01em;
  text-wrap: balance;
}
.quote::before { content: "「"; color: var(--brass); }
.quote::after { content: "」"; color: var(--brass); }

/* table */
.table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.table caption {
  text-align: left;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding-bottom: 0.7rem;
  caption-side: top;
}
.table th,
.table td {
  text-align: left;
  padding: 0.85rem 0.9rem 0.85rem 0;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}
.table thead th {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  font-weight: 500;
  border-bottom: 1px solid var(--ink);
}
.table tbody tr:hover { background: color-mix(in srgb, #fff 38%, transparent); }
.table .num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.03em; }
.table .em { font-family: var(--serif); font-size: 1.02rem; }

/* accordion */
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--rule); }
.faq summary {
  cursor: pointer;
  list-style: none;
  padding: 1.15rem 2rem 1.15rem 0;
  position: relative;
  font-family: var(--serif);
  font-size: 1.08rem;
  letter-spacing: 0.02em;
  transition: color 0.25s;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  position: absolute;
  right: 0.2rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--brass);
  transition: transform 0.35s var(--ease);
}
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq summary:hover { color: var(--magenta); }
.faq__a {
  padding: 0 2rem 1.4rem 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ink-soft);
  max-width: 62ch;
}
.faq__a p + p { margin-top: 0.7em; }

/* timeline (校历) */
.timeline { position: relative; padding-left: 1.6rem; }
.timeline::before {
  content: "";
  position: absolute;
  left: 0; top: 0.4rem; bottom: 0.4rem;
  width: 1px;
  background: var(--rule);
}
.tl-item { position: relative; padding-block: 0.85rem; }
.tl-item::before {
  content: "";
  position: absolute;
  left: -1.6rem; top: 1.45rem;
  width: 7px; height: 7px;
  margin-left: -3px;
  border: 1px solid var(--brass);
  background: var(--paper);
  border-radius: 50%;
}
.tl-item--now::before { background: var(--magenta); border-color: var(--magenta); box-shadow: 0 0 0 4px rgba(228, 0, 127, 0.12); }
.tl-item__date {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brass-dk);
  margin-bottom: 0.25rem;
}
.tl-item__title { font-family: var(--serif); font-size: 1.1rem; }
.tl-item__desc { font-size: 0.84rem; color: var(--ink-mute); margin-top: 0.2rem; max-width: 52ch; }

/* callout */
.callout {
  border: 1px solid var(--ink);
  padding: var(--s3);
  position: relative;
  background: color-mix(in srgb, #fff 30%, var(--paper));
}
.callout--ink { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.callout--ink .note { color: rgba(244, 240, 230, 0.7); }
.callout__label {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--brass);
  margin-bottom: 0.75rem;
}
.callout--ink .callout__label { color: var(--brass-lt); }

/* metric meter */
.meter { display: grid; gap: 0.4rem; }
.meter__label { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-mute); }
.meter__bar { height: 3px; background: var(--rule-soft); position: relative; overflow: hidden; }
.meter__fill { position: absolute; inset: 0 auto 0 0; background: var(--ink); }

/* steps */
.steps { counter-reset: step; display: grid; gap: 0; }
.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1.2rem;
  padding-block: 1.3rem;
  border-bottom: 1px solid var(--rule);
}
.step::before {
  content: counter(step, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--brass);
  padding-top: 0.3rem;
}
.step__title { font-family: var(--serif); font-size: 1.12rem; margin-bottom: 0.25rem; }
.step__body { font-size: 0.86rem; color: var(--ink-soft); line-height: 1.72; }

/* ticker */
.ticker {
  display: flex;
  align-items: center;
  gap: 0;
  border-block: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  overflow: hidden;
  height: 2.9rem;
}
.ticker__label {
  flex-shrink: 0;
  align-self: stretch;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-inline: 1.1rem;
  background: var(--magenta);
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  position: relative;
  z-index: 2;
}
.ticker__track {
  display: flex;
  white-space: nowrap;
  animation: marquee 52s linear infinite;
  will-change: transform;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding-inline: 1.6rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.08em;
  color: rgba(244, 240, 230, 0.82);
}
.ticker__item b { color: var(--brass-lt); font-weight: 500; }
.ticker__sep { opacity: 0.28; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* certificate */
.cert {
  background:
    radial-gradient(circle at 50% 0%, #fffdf7, #f1e9d7 70%);
  border: 1px solid var(--brass);
  padding: clamp(1.6rem, 4vw, 3rem);
  position: relative;
  text-align: center;
  box-shadow: 0 30px 60px -50px rgba(18, 20, 26, 0.6);
}
.cert::before {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid color-mix(in srgb, var(--brass) 45%, transparent);
  pointer-events: none;
}
.cert__kicker {
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--brass-dk);
}
.cert__title {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  letter-spacing: 0.3em;
  margin: 0.7rem 0 0.2rem;
  text-indent: 0.3em;
}
.cert__body { font-size: 0.87rem; color: var(--ink-soft); max-width: 40ch; margin: 1.1rem auto; line-height: 1.9; }
.cert__seal {
  width: 84px; height: 84px;
  margin: 1.2rem auto 0;
  border-radius: 50%;
  border: 1px solid var(--magenta);
  color: var(--magenta);
  display: grid;
  place-items: center;
  font-family: var(--serif);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  line-height: 1.25;
  transform: rotate(-8deg);
  opacity: 0.85;
}

/* figure */
.figure { position: relative; }
.figure__img { border: 1px solid var(--rule); background: #fff; }
.figure__cap {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 0.7rem;
  display: flex;
  gap: 0.6rem;
}
.figure__cap b { color: var(--brass-dk); font-weight: 500; }

/* ------------------------------------------------------- 7. page modules */

.page-head {
  padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(2rem, 4vw, 3rem);
  border-bottom: 1px solid var(--rule);
  position: relative;
  overflow: hidden;
  overflow: clip;
}
.page-head__crumb {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 1.6rem;
  display: flex;
  gap: 0.6rem;
  align-items: center;
}
.page-head__crumb a:hover { color: var(--magenta); }
.page-head__title {
  font-family: var(--serif);
  font-size: clamp(2.4rem, 6.5vw, 4.8rem);
  line-height: 1;
  letter-spacing: 0.03em;
}
.page-head__sub {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-top: 1rem;
}
.page-head__lede {
  margin-top: var(--s3);
  max-width: 56ch;
  font-family: var(--serif);
  font-size: clamp(1.05rem, 1.4vw, 1.24rem);
  line-height: 1.68;
  color: var(--ink-soft);
}
.page-head__ghost {
  position: absolute;
  right: -2%;
  bottom: -32%;
  font-family: var(--serif);
  font-size: clamp(9rem, 24vw, 20rem);
  line-height: 1;
  color: var(--ink);
  opacity: 0.035;
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

/* faculty index */
.fac { display: grid; gap: 0; border-top: 1px solid var(--ink); }
.fac__item {
  display: grid;
  grid-template-columns: 4.5rem 1.25fr 1fr 6rem;
  gap: var(--s3);
  padding-block: 1.7rem;
  border-bottom: 1px solid var(--rule);
  align-items: start;
  transition: background 0.35s;
}
.fac__item:hover { background: color-mix(in srgb, #fff 40%, transparent); }
.fac__no { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--brass); padding-top: 0.35rem; }
.fac__name { font-family: var(--serif); font-size: clamp(1.25rem, 2vw, 1.6rem); letter-spacing: 0.03em; }
.fac__en { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--ink-faint); margin-top: 0.4rem; }
.fac__desc { font-size: 0.87rem; color: var(--ink-soft); line-height: 1.72; }
.fac__depts { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-top: 0.7rem; }
.fac__meta { font-family: var(--mono); font-size: 0.58rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-mute); text-align: right; line-height: 1.9; }

/* course grid */
.course {
  display: grid;
  grid-template-columns: 4.6rem 1fr auto;
  gap: 1rem;
  align-items: baseline;
  padding-block: 0.9rem;
  border-bottom: 1px dotted var(--rule);
}
.course__code { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.08em; color: var(--brass-dk); }
.course__name { font-family: var(--serif); font-size: 1.02rem; }
.course__name small { display: block; font-family: var(--sans); font-size: 0.72rem; color: var(--ink-mute); margin-top: 0.1rem; }
.course__cr { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.1em; color: var(--ink-mute); white-space: nowrap; }

/* semester blocks */
.sem { border: 1px solid var(--rule); padding: var(--s3); background: color-mix(in srgb, #fff 26%, transparent); }
.sem__hd {
  display: flex; justify-content: space-between; align-items: baseline;
  border-bottom: 1px solid var(--ink);
  padding-bottom: 0.6rem; margin-bottom: 0.4rem;
}
.sem__title { font-family: var(--serif); font-size: 1.16rem; letter-spacing: 0.06em; }
.sem__tag { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute); }

/* judgment mini-game */
.judge {
  border: 1px solid var(--ink);
  padding: clamp(1.4rem, 3vw, 2.4rem);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--s4);
  align-items: center;
  background: color-mix(in srgb, #fff 30%, var(--paper));
}
.judge__stage {
  position: relative;
  aspect-ratio: 1;
  max-width: 300px;
  margin-inline: auto;
  width: 100%;
  display: grid;
  place-items: center;
  cursor: crosshair;
  touch-action: manipulation;
}
.judge__stage:focus-visible { outline-offset: 8px; }
.judge__ring-static {
  position: absolute; inset: 0;
  border: 1px solid var(--rule);
  border-radius: 50%;
}
.judge__ring-static:nth-child(2) { inset: 14%; border-style: dashed; }
.judge__pulse {
  position: absolute; inset: 0;
  border: 2px solid var(--magenta);
  border-radius: 50%;
  opacity: 0;
  transform: scale(1);
  pointer-events: none;
}
.judge__pulse.is-live { animation: judgePulse var(--dur, 1.2s) linear forwards; }
@keyframes judgePulse {
  0% { opacity: 0.9; transform: scale(1); }
  100% { opacity: 0; transform: scale(0.42); }
}
.judge__core {
  width: 34%; height: 34%;
  border-radius: 50%;
  background: var(--ink);
  color: var(--paper);
  display: grid;
  place-items: center;
  font-family: var(--mono);
  font-size: 0.55rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  position: relative;
  z-index: 2;
  text-align: center;
  line-height: 1.4;
  transition: background 0.2s;
}
.judge__result {
  position: absolute;
  inset: auto 0 12%;
  text-align: center;
  font-family: var(--serif);
  font-size: 1.5rem;
  letter-spacing: 0.16em;
  color: var(--magenta);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.judge__result.is-on { opacity: 1; animation: judgePop 0.6s var(--ease); }
@keyframes judgePop {
  0% { transform: translateY(6px) scale(0.96); }
  100% { transform: translateY(0) scale(1); }
}
.judge__hud { display: flex; gap: 1.4rem; flex-wrap: wrap; margin-top: 1rem; }
.judge__hud div { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-mute); }
.judge__hud b { display: block; font-family: var(--serif); font-size: 1.5rem; letter-spacing: 0; color: var(--ink); font-weight: 400; }

/* campus map */
.map {
  border: 1px solid var(--ink);
  background:
    linear-gradient(var(--rule-soft) 1px, transparent 1px) 0 0 / 100% 2.6rem,
    linear-gradient(90deg, var(--rule-soft) 1px, transparent 1px) 0 0 / 2.6rem 100%,
    color-mix(in srgb, #fff 45%, var(--paper));
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}
.map__grid { position: absolute; inset: 0; }
.map__room {
  position: absolute;
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--paper) 80%, #fff);
  display: grid;
  place-items: center;
  text-align: center;
  font-family: var(--mono);
  font-size: 0.56rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
  padding: 0.3rem;
  transition: background 0.3s, color 0.3s;
}
.map__room:hover { background: var(--ink); color: var(--paper); }
.map__room--key { background: var(--ink); color: var(--paper); }
.map__room--key:hover { background: var(--magenta); }
.map__room small { display: block; font-family: var(--serif); font-size: 0.82rem; letter-spacing: 0.04em; text-transform: none; }
.map__legend {
  display: flex; flex-wrap: wrap; gap: 1.2rem;
  margin-top: 1rem;
  font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--ink-mute);
}

/* status board */
.board { border-top: 1px solid var(--ink); overflow-x: auto; overscroll-behavior-x: contain; }
.board__row {
  display: grid;
  grid-template-columns: 4rem 1fr 5.5rem 5rem;
  gap: 1rem;
  align-items: center;
  padding-block: 0.8rem;
  border-bottom: 1px solid var(--rule);
  font-size: 0.86rem;
}
.board__id { font-family: var(--mono); font-size: 0.62rem; letter-spacing: 0.1em; color: var(--brass-dk); }
.board__name { font-family: var(--serif); font-size: 1rem; }
.board__status { font-family: var(--mono); font-size: 0.56rem; letter-spacing: 0.12em; text-transform: uppercase; text-align: right; }
.board__status[data-s="on"] { color: var(--magenta); }
.board__status[data-s="free"] { color: #4d6b00; }
.board__status[data-s="maint"] { color: var(--ink-faint); }
.board__eta { font-family: var(--mono); font-size: 0.6rem; letter-spacing: 0.08em; color: var(--ink-mute); text-align: right; }

/* 404 */
.err {
  min-height: 68vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding-block: var(--s6);
}
.err__code {
  font-family: var(--serif);
  font-size: clamp(6rem, 22vw, 15rem);
  line-height: 0.8;
  letter-spacing: -0.03em;
  color: var(--ink);
  opacity: 0.92;
}
.err__code span { color: var(--magenta); }

/* --------------------------------------- 7b. engraved plate typography */

.plate__art .engrave {
  font-family: var(--sans);
  font-size: 7px;
  letter-spacing: 0.34em;
  fill: var(--brass-dk);
  opacity: 0.95;
}
.plate__art .engrave-mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.24em;
  fill: var(--ink);
}
.plate__art .engrave-arc {
  font-family: var(--sans);
  font-size: 8.6px;
  letter-spacing: 0.34em;
  fill: var(--brass-dk);
  opacity: 0.85;
}

.plate { cursor: crosshair; }
.plate__ripple {
  position: absolute;
  width: 14px; height: 14px;
  margin: -7px 0 0 -7px;
  border: 1.5px solid var(--magenta);
  border-radius: 50%;
  pointer-events: none;
  z-index: 5;
  animation: rippleOut 0.85s var(--ease) forwards;
}
@keyframes rippleOut {
  0% { transform: scale(0.2); opacity: 1; }
  100% { transform: scale(6); opacity: 0; }
}
.plate__grade {
  position: absolute;
  transform: translate(0.75rem, -1.9rem);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  font-weight: 500;
  pointer-events: none;
  z-index: 6;
  animation: gradeFloat 1.1s var(--ease) forwards;
  white-space: nowrap;
}
@keyframes gradeFloat {
  0% { opacity: 0; transform: translate(0.75rem, -1.4rem); }
  25% { opacity: 1; }
  100% { opacity: 0; transform: translate(0.75rem, -3.1rem); }
}

/* ------------------------------------------------------------ 8. motion */

/* Only hide-until-revealed when scripting is actually available, so a
   JS-blocked or crawler view still gets every word. */
@media (scripting: enabled) {
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  }
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: 0.08s; }
.reveal[data-d="2"] { transition-delay: 0.16s; }
.reveal[data-d="3"] { transition-delay: 0.24s; }
.reveal[data-d="4"] { transition-delay: 0.32s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

/* --------------------------------------------------------- 9. utilities */

.center { text-align: center; }
.right { text-align: right; }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--s1); }
.mt-2 { margin-top: var(--s2); }
.mt-3 { margin-top: var(--s3); }
.mt-4 { margin-top: var(--s4); }
.mb-0 { margin-bottom: 0; }
.mb-2 { margin-bottom: var(--s2); }
.mb-3 { margin-bottom: var(--s3); }
.mb-4 { margin-bottom: var(--s4); }
.stack > * + * { margin-top: var(--s2); }
.stack-3 > * + * { margin-top: var(--s3); }
.flex { display: flex; }
.between { justify-content: space-between; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.wrap-flex { flex-wrap: wrap; }
.gap-1 { gap: var(--s1); }
.gap-2 { gap: var(--s2); }
.gap-3 { gap: var(--s3); }
.grow { flex: 1; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.dim { color: var(--ink-mute); }
.faint { color: var(--ink-faint); }
.small { font-size: 0.8rem; }
.xs { font-size: 0.7rem; }
.brass { color: var(--brass-dk); }
.magenta { color: var(--magenta); }
.cyan { color: var(--cyan); }
.ink { color: var(--ink); }
.paper { color: var(--paper); }
.cols-2 { column-count: 2; column-gap: var(--s4); }
.cols-2 > * { break-inside: avoid; }
.span-7 { grid-column: span 7; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-4 { grid-column: span 4; }
.span-8 { grid-column: span 8; }
.span-12 { grid-column: span 12; }

/* ------------------------------------------------ 10. responsive / print */

@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; }
  .plate { max-width: 420px; margin-inline: auto; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
  .fac__item { grid-template-columns: 3.5rem 1fr 5rem; }
  .fac__desc { grid-column: 2 / -1; }
}

@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: flex; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-12 > *[class*="span-"] { grid-column: span 12; }
  .judge { grid-template-columns: 1fr; }
  .strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .strip__item:nth-child(3) { border-left: 0; }
  .strip__item:nth-child(-n + 2) { border-bottom: 1px solid var(--rule); }
  .cols-2 { column-count: 1; }
  .page-head__ghost { display: none; }
  .scroller > .table { min-width: 34rem; }

  /* mobile drawer */
  .masthead.is-open .nav {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    position: absolute;
    left: 0; right: 0; top: 100%;
    background: var(--paper);
    border-bottom: 1px solid var(--ink);
    padding: 0.5rem var(--gutter) 1.5rem;
    box-shadow: 0 24px 40px -30px rgba(0, 0, 0, 0.4);
  }
  .masthead.is-open .nav__link {
    width: 100%;
    padding-block: 0.95rem;
    border-bottom: 1px solid var(--rule);
    font-size: 0.95rem;
  }
  .masthead.is-open .nav__cta { margin-top: 1.1rem; }
  .masthead.is-open .nav__link::after { display: none; }
}

@media (max-width: 680px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .rows__head, .row { grid-template-columns: 4rem 1fr; row-gap: 0.25rem; }
  .rows__head span:nth-child(3), .rows__head span:nth-child(4) { display: none; }
  .row__mid { grid-column: 2; }
  .row__val { grid-column: 2; text-align: left; }
  .fac__item { grid-template-columns: 2.6rem 1fr; }
  .fac__meta { grid-column: 2; text-align: left; }
  .footer__grid { grid-template-columns: 1fr; }
  .course { grid-template-columns: 1fr auto; }
  .course__code { grid-column: 1 / -1; }
  .topbar__group--hide { display: none; }
  .board__row { grid-template-columns: 3rem 1fr 5rem; min-width: 24rem; }
  .board__eta { display: none; }
  .judge__hud b { font-size: 1.2rem; }
  .ticker__label { padding-inline: 0.8rem; font-size: 0.52rem; }
}

@media (max-width: 400px) {
  .hero__title { font-size: 2.5rem; }
  .strip { grid-template-columns: 1fr; }
  .strip__item { border-left: 0; border-bottom: 1px solid var(--rule); }
}

@media print {
  .topbar, .masthead, .footer, .ticker, .hero__actions { display: none; }
  body { background: #fff; }
  body::after { display: none; }
  .card, .plate, .callout { break-inside: avoid; }
}