/* =========================================================================
   yau-awards archive — site styles
   Loads on top of Tian2 design tokens (css/tian2.css).
   Accent: coral.
   ========================================================================= */

/* Slightly tighter web type than the Tian2 defaults */
:root {
  --content-max: 1120px;
  --reading-max: 720px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--font-body-en);
  font-size: 17px;
  line-height: 1.6;
}

/* ---------- Layout shell ---------- */

.shell {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 48px;
}

@media (max-width: 720px) {
  .shell { padding: 0 24px; }
  html, body { font-size: 16px; }
}

main { padding: 64px 0 96px; }
@media (max-width: 720px) { main { padding: 40px 0 64px; } }

/* ---------- Masthead / nav ---------- */

.masthead {
  border-bottom: var(--stroke) solid var(--ink);
}

.masthead-inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 32px;
  padding: 20px 0 18px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: baseline;
  gap: 14px;
  text-decoration: none;
  color: var(--ink);
}

.brand-mark {
  font-family: var(--font-display-en);
  font-weight: 900;
  font-size: 22px;
  letter-spacing: -0.01em;
  line-height: 1;
}

.brand-tag {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1;
}

.nav {
  display: flex;
  gap: 26px;
  font-family: var(--font-body-en);
  font-size: 15px;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 2px 0;
  border-bottom: 1.5px solid transparent;
  transition: border-color var(--dur) var(--ease-standard),
              color var(--dur) var(--ease-standard);
}

.nav a:hover { color: var(--coral); }
.nav a.is-active {
  color: var(--ink);
  border-bottom-color: var(--coral);
}

@media (max-width: 560px) {
  .masthead-inner { padding: 16px 0 12px; gap: 12px; }
  .nav { gap: 18px; font-size: 14px; }
}

/* ---------- Editorial primitives ---------- */

.eyebrow {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1;
  margin: 0 0 14px;
}

.eyebrow--coral { color: var(--coral); }

.headline {
  font-family: var(--font-display-en);
  font-weight: 800;
  font-size: 72px;
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0 0 24px;
}

.headline-zh {
  display: block;
  font-family: var(--font-serif-zh);
  font-weight: 700;
  font-size: 0.62em;
  margin-top: 12px;
  color: var(--ink-2);
}

@media (max-width: 720px) {
  .headline { font-size: 48px; }
}

.deck {
  font-family: var(--font-display-en);
  font-style: italic;
  font-weight: 500;
  font-size: 26px;
  line-height: 1.4;
  color: var(--ink-2);
  max-width: 36em;
  margin: 0 0 24px;
}

.lede {
  font-family: var(--font-body-en);
  font-size: 19px;
  line-height: 1.65;
  max-width: 36em;
  color: var(--ink);
  margin: 0 0 24px;
}

.rule-thick {
  height: 0;
  border: 0;
  border-top: var(--stroke) solid var(--ink);
  margin: 56px 0 40px;
}

.rule-hair {
  height: 0;
  border: 0;
  border-top: 1px solid var(--ink);
  margin: 24px 0;
}

.ornament-rule {
  text-align: center;
  font-family: var(--font-display-en);
  font-size: 22px;
  color: var(--ink-2);
  letter-spacing: 0.6em;
  margin: 48px 0 40px;
}
.ornament-rule::before { content: "⁂"; }

.section-title {
  font-family: var(--font-display-en);
  font-weight: 700;
  font-size: 36px;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 18px;
}

/* ---------- Cards ---------- */

.shelf {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 36px 0 0;
}

@media (max-width: 880px) {
  .shelf { grid-template-columns: 1fr; }
}

.shelf-card {
  display: block;
  border: var(--stroke) solid var(--ink);
  background: var(--cream);
  padding: 28px 28px 24px;
  text-decoration: none;
  color: var(--ink);
  transition: background var(--dur) var(--ease-standard);
}

.shelf-card:hover { background: var(--cream-2); }

.shelf-card .illus {
  display: block;
  width: 96px;
  height: 96px;
  margin-bottom: 18px;
}

.shelf-card .label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--coral);
  margin-bottom: 8px;
  line-height: 1;
}

.shelf-card .title {
  font-family: var(--font-display-en);
  font-weight: 700;
  font-size: 26px;
  line-height: 1.2;
  margin: 0 0 10px;
}

.shelf-card .meta {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.5;
}

.shelf-card .arrow {
  margin-top: 16px;
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  line-height: 1;
}

/* ---------- Year picker grid ---------- */

.year-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 28px 0 0;
}

@media (max-width: 720px) {
  .year-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
}

.year-card {
  display: block;
  border: var(--stroke) solid var(--ink);
  background: var(--cream);
  text-decoration: none;
  color: var(--ink);
  padding: 28px 26px 24px;
  transition: background var(--dur) var(--ease-standard);
}

.year-card:hover { background: var(--cream-2); }

.year-card .year {
  font-family: var(--font-display-en);
  font-weight: 800;
  font-size: 64px;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0 0 12px;
}

.year-card .edition {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 8px;
  line-height: 1;
}

.year-card .stat {
  font-size: 14px;
  color: var(--ink-2);
}

@media (max-width: 720px) {
  .year-card .year { font-size: 48px; }
}

/* ---------- Winner card ---------- */

.subject-block { margin: 0 0 56px; }
.subject-block:last-child { margin-bottom: 24px; }

.subject-block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-top: var(--stroke) solid var(--ink);
  padding: 18px 0 22px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.subject-block-head .name {
  font-family: var(--font-display-en);
  font-weight: 700;
  font-size: 32px;
  line-height: 1.15;
  margin: 0;
}

.subject-block-head .name-zh {
  font-family: var(--font-serif-zh);
  font-weight: 700;
  color: var(--ink-2);
  margin-left: 12px;
  font-size: 0.7em;
}

.subject-block-head .count {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.medal-group { margin: 0 0 28px; }

.medal-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 0 0 14px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--ink);
}

.medal-header .chip {
  /* override Tian2 default with smaller padding for sit-in-line use */
  padding: 3px 9px;
  font-size: 12px;
}

.medal-header .label-zh {
  font-family: var(--font-serif-zh);
  font-weight: 700;
  color: var(--ink-2);
  font-size: 16px;
}

.winner-list { margin: 0; padding: 0; list-style: none; }

.winner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px 32px;
  padding: 18px 0;
  border-bottom: 1px solid var(--ink);
  align-items: start;
}

.winner:last-child { border-bottom: 0; }

.winner .body {
  min-width: 0;
}

.winner .title {
  font-family: var(--font-display-en);
  font-weight: 600;
  font-size: 21px;
  line-height: 1.3;
  margin: 0 0 8px;
  color: var(--ink);
  text-wrap: pretty;
}

.winner .meta {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.55;
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2px 16px;
  max-width: 56em;
}

.winner .meta dt {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  line-height: 1.8;
}

.winner .meta dd { margin: 0; }

.winner .meta dd .zh,
.winner .meta dd .en {
  display: inline;
}

.winner .meta dd .zh {
  font-family: var(--font-serif-zh);
  color: var(--ink);
}

.winner .meta dd .en {
  color: var(--ink-2);
  margin-left: 4px;
}

.winner .actions {
  flex-shrink: 0;
}

.winner .download-btn,
.winner .nopdf {
  display: inline-block;
  font-family: var(--font-body-en);
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding: 8px 14px;
  border: var(--stroke) solid var(--ink);
  border-radius: 0;
  background: var(--coral);
  color: var(--cream);
  white-space: nowrap;
  transition: background var(--dur) var(--ease-standard),
              transform var(--dur-fast) var(--ease-standard);
}

.winner .download-btn:hover { background: #d85540; }
.winner .download-btn:active { transform: translateY(1px); }

.winner .nopdf {
  background: var(--cream);
  color: var(--ink-3);
  cursor: default;
  font-weight: 500;
  font-style: italic;
}

@media (max-width: 720px) {
  .winner {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .winner .title { font-size: 19px; }
  .winner .meta { grid-template-columns: 1fr; }
  .winner .meta dt { line-height: 1.6; }
}

/* ---------- Featured strip (home) ---------- */

.featured {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  border: var(--stroke) solid var(--ink);
  background: var(--cream-2);
  padding: 28px 32px;
  margin: 0;
  align-items: center;
}

.featured .badge {
  border-right: 1px solid var(--ink);
  padding-right: 28px;
}

.featured .badge .label {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--coral);
  margin: 0 0 4px;
  line-height: 1;
}

.featured .badge .year {
  font-family: var(--font-display-en);
  font-weight: 800;
  font-size: 56px;
  line-height: 0.95;
  letter-spacing: -0.02em;
  margin: 0;
}

.featured .badge .edition {
  font-family: var(--font-serif-zh);
  font-size: 14px;
  color: var(--ink-2);
  margin: 6px 0 0;
}

.featured .copy .label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 8px;
  line-height: 1;
}

.featured .copy .title {
  font-family: var(--font-display-en);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.25;
  margin: 0 0 10px;
}

.featured .copy .meta {
  font-size: 15px;
  color: var(--ink-2);
  line-height: 1.5;
}

@media (max-width: 720px) {
  .featured {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px;
  }
  .featured .badge {
    border-right: 0;
    border-bottom: 1px solid var(--ink);
    padding: 0 0 18px;
  }
  .featured .badge .year { font-size: 44px; }
}

/* ---------- Browse subject grid ---------- */

.subject-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 32px 0 0;
}

@media (max-width: 880px) {
  .subject-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .subject-grid { grid-template-columns: 1fr; gap: 18px; }
}

.subject-card {
  display: block;
  border: var(--stroke) solid var(--ink);
  background: var(--cream);
  padding: 24px 24px 20px;
  text-decoration: none;
  color: var(--ink);
  transition: background var(--dur) var(--ease-standard);
}

.subject-card:hover { background: var(--cream-2); }

.subject-card .illus {
  width: 88px;
  height: 88px;
  margin-bottom: 16px;
  display: block;
}

.subject-card .name {
  font-family: var(--font-display-en);
  font-weight: 700;
  font-size: 24px;
  line-height: 1.15;
  margin: 0 0 4px;
}

.subject-card .name-zh {
  font-family: var(--font-serif-zh);
  font-weight: 700;
  font-size: 18px;
  color: var(--ink-2);
  margin: 0 0 10px;
}

.subject-card .count {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
}

/* ---------- Year picker on browse page (year tabs) ---------- */

.year-anchor-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  padding: 14px 0;
  margin: 32px 0 28px;
}

.year-anchor-bar a {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-2);
  text-decoration: none;
  padding: 2px 8px;
  border: 1.5px solid transparent;
  transition: border-color var(--dur) var(--ease-standard),
              color var(--dur) var(--ease-standard);
}

.year-anchor-bar a:hover {
  color: var(--ink);
  border-color: var(--coral);
}

/* ---------- Library list ---------- */

.library-section { margin: 0 0 64px; }

.library-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
}

.library-list li {
  padding: 18px 0;
  border-bottom: 1px solid var(--ink);
  display: grid;
  grid-template-columns: 100px 1fr auto;
  gap: 24px;
  align-items: baseline;
}

.library-list li:first-child { border-top: 1px solid var(--ink); }

.library-list .year-tag {
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
}

.library-list .post-title {
  font-family: var(--font-display-en);
  font-weight: 600;
  font-size: 19px;
  line-height: 1.3;
  color: var(--ink);
}

.library-list .post-meta {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

@media (max-width: 720px) {
  .library-list li {
    grid-template-columns: 1fr;
    gap: 6px;
  }
}

/* ---------- Whitepaper page ---------- */

.book-frame {
  width: 100%;
  height: 90vh;
  min-height: 600px;
  border: var(--stroke) solid var(--ink);
  background: var(--cream-2);
  display: block;
  margin: 32px 0 24px;
}

.book-actions {
  display: flex;
  gap: 16px;
  margin: 24px 0;
  flex-wrap: wrap;
}

.btn-download {
  display: inline-block;
  font-family: var(--font-body-en);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border: var(--stroke) solid var(--ink);
  background: var(--coral);
  color: var(--cream);
  text-decoration: none;
  transition: background var(--dur) var(--ease-standard);
}

.btn-download:hover { background: #d85540; }

.btn-ghost {
  display: inline-block;
  font-family: var(--font-body-en);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border: var(--stroke) solid var(--ink);
  background: var(--cream);
  color: var(--ink);
  text-decoration: none;
  transition: background var(--dur) var(--ease-standard);
}

.btn-ghost:hover { background: var(--cream-2); }

.callout-warn {
  border: var(--stroke) solid var(--ink);
  background: var(--mustard);
  padding: 20px 24px;
  margin: 32px 0;
  font-size: 16px;
  color: var(--ink);
}

.callout-warn .label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin: 0 0 8px;
  line-height: 1;
  display: block;
}

/* ---------- About / colophon ---------- */

.colophon-body {
  max-width: var(--reading-max);
}

.colophon-body p {
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 1.2em;
  text-wrap: pretty;
}

.colophon-body p.drop-cap::first-letter {
  font-family: var(--font-display-en);
  font-weight: 900;
  font-size: 4.6em;
  line-height: 0.85;
  float: left;
  margin: 0.05em 0.08em -0.1em 0;
  color: var(--ink);
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: var(--stroke) solid var(--ink);
  border-bottom: var(--stroke) solid var(--ink);
  padding: 28px 0;
  margin: 36px 0;
}

@media (max-width: 720px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); gap: 18px; }
}

.stat {
  text-align: left;
}

.stat .figure {
  font-family: var(--font-display-en);
  font-weight: 800;
  font-size: 48px;
  line-height: 1;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}

.stat .label {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ---------- Footer ---------- */

.foot {
  border-top: var(--stroke) solid var(--ink);
  padding: 32px 0 48px;
  margin-top: 40px;
}

.foot-inner {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  font-size: 14px;
  color: var(--ink-2);
  flex-wrap: wrap;
}

.foot a { color: var(--ink); }

/* ---------- Misc ---------- */

.breadcrumbs {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 18px;
}

.breadcrumbs a {
  color: var(--ink-3);
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumbs a:hover {
  color: var(--coral);
  border-bottom-color: var(--coral);
}

.breadcrumbs .sep {
  margin: 0 8px;
  color: var(--ink-3);
}

.page-summary {
  display: flex;
  gap: 28px;
  margin: 24px 0 36px;
  font-family: var(--font-label);
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-3);
  flex-wrap: wrap;
}

.page-summary .pip { color: var(--coral); margin-right: 6px; }

.section-intro {
  max-width: 36em;
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-2);
  margin: 0 0 24px;
}

/* =========================================================================
   i18n — language toggle (EN / 中文). See I18N.md for the authoring rule.
   Paired UI text carries class .tr + a lang attribute; the variant that
   doesn't match <html lang> is hidden. Data values are never wrapped.
   ========================================================================= */

/* Hide the language variant that doesn't match the document language.
   The shown element keeps its natural display (inline span stays inline,
   block element stays block) so layout is unaffected. */
html[lang="en"] .tr[lang="zh"] { display: none !important; }
html[lang="zh"] .tr[lang="en"] { display: none !important; }

/* Until JS/inline-head sets a lang, default to zh to avoid a flash of both. */
html:not([lang="en"]) .tr[lang="en"] { display: none !important; }

/* The toggle sits at the end of the nav. It shows the OTHER language's name
   (click it to switch): "中文" while reading English, "EN" while reading 中文. */
.lang-toggle {
  font-family: var(--font-label);
  font-size: 16px;
  letter-spacing: 0.10em;
  line-height: 1;
  color: var(--ink);
  background: transparent;
  border: 1.5px solid var(--ink);
  border-radius: 3px;
  padding: 5px 10px 4px;
  cursor: pointer;
  transition: color var(--dur) var(--ease-standard),
              border-color var(--dur) var(--ease-standard),
              background var(--dur) var(--ease-standard);
}
.lang-toggle:hover {
  color: var(--cream);
  background: var(--ink);
  border-color: var(--ink);
}
.lang-toggle:focus-visible {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

@media (max-width: 560px) {
  .lang-toggle { font-size: 14px; padding: 4px 8px 3px; }
}