/* OSCE冒險 site styles (openspec osce-adventure-site task 3.2).
   Tokens copied from the med-study-rpg.com reference site (LocalLLMRPG global.css:20-55, see
   ~/.claude/imports/med_study_rpg_design_reference.md section 3). Light scheme only, border-radius 0,
   hard pixel shadows, no gradients (1-bit dither instead).

   Contrast pairs that are not declared in one rule (inherited colours). site/tests/test_build.py checks every
   pair below and every rule that sets both `color` and `background` to be at least 4.5:1.
   contrast-pair: --ink on --bg-cream
   contrast-pair: --ink on --dither-dot
   contrast-pair: --ink on --paper
   contrast-pair: --ink-muted on --bg-cream
   contrast-pair: --ink-muted on --paper
   contrast-pair: --on-dark on --bg-dark
   contrast-pair: --accent-gold on --bg-dark
   contrast-pair: --on-dark-muted on --bg-dark
   contrast-pair: --link on --bg-cream
   contrast-pair: --link on --paper
*/

@font-face {
  font-family: 'Cubic 11';
  src: url('fonts/Cubic_11.woff2') format('woff2');
  font-display: swap;
}

:root {
  color-scheme: light;

  /* study-rpg pixel-medical palette */
  --bg-cream: #f4ecd8;
  --bg-cream-deep: #eadfc4;
  --bg-dark: #2d1f1a;
  --ink: #1a1410;
  --ink-muted: #5a4a3c;
  --accent-leaf: #6a8c3f;
  --accent-rose: #c44d4d;
  --accent-gold: #d4a04d;
  --accent-sky: #6a9bc4;
  --frame-wood-light: #8c6d4a;
  --frame-wood-dark: #5a3f29;
  --rarity-sr: #a06ac4;
  --paper: #fbf6ea;
  --on-dark: #f4ecd8;

  /* site additions (AA-safe variants from the design rules, section 4) */
  --btn-primary: #4f6b2e;
  --btn-primary-hover: #3f5724;
  --badge-rose: #a83c3c;
  --on-dark-muted: #d9caa6;
  --dither-dot: #d9caa6;
  --link: #7a3b1d;
  --footer-bg: #2d1f1a;

  /* font stacks (study-rpg token names) */
  --font-pixel-cjk: 'Cubic 11', 'Noto Sans TC', 'PingFang TC', sans-serif;
  --font-pixel-num: 'VT323', 'Cubic 11', 'Courier New', monospace;
  --font-legible: 'Noto Serif TC', 'Source Han Serif TC', 'PingFang TC', 'Microsoft JhengHei', Georgia, serif;
  --font-ui: 'Noto Sans TC', 'PingFang TC', 'Microsoft JhengHei', -apple-system, system-ui, sans-serif;

  --shadow-px: 2px 2px 0 var(--bg-dark);
  --shadow-px-lg: 4px 4px 0 var(--bg-dark);
  --reading-width: 680px;
  --page-width: 1088px;

  /* 1-bit dither used instead of gradients */
  --dither: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='4' height='4' shape-rendering='crispEdges'%3E%3Crect width='1' height='1' fill='%23d9caa6'/%3E%3Crect x='2' y='2' width='1' height='1' fill='%23d9caa6'/%3E%3C/svg%3E");
}

*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-cream);
  background-image: var(--dither);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.7;
  overflow-wrap: anywhere;
}

h1,
h2,
h3 {
  font-family: var(--font-pixel-cjk);
  font-weight: normal;
  -webkit-font-smoothing: none;
  line-height: 1.4;
}
h1 {
  font-size: 24px;
  margin: 0 0 16px;
}
h2 {
  font-size: 20px;
  margin: 32px 0 12px;
  padding-bottom: 4px;
  border-bottom: 4px solid var(--frame-wood-light);
}
h2::before {
  content: '◆ ';
  color: var(--frame-wood-dark);
}
@media (min-width: 768px) {
  h1 {
    font-size: 32px;
  }
}

a {
  color: var(--link);
}

.sr-only {
  position: absolute;
  left: -9999px;
}
.sr-only:focus {
  left: 16px;
  top: 8px;
  z-index: 20;
  background: var(--bg-dark);
  color: var(--on-dark);
  padding: 8px;
}

/* ---- header / tabs ---- */
.site-header {
  background: var(--bg-dark);
  color: var(--on-dark);
  border-bottom: 4px solid var(--frame-wood-dark);
  position: sticky;
  top: 0;
  z-index: 10;
  font-family: var(--font-pixel-cjk);
  -webkit-font-smoothing: none;
}
.site-header__inner {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 8px 16px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
}
.site-title {
  color: var(--accent-gold);
  text-decoration: none;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 44px;
}
.site-title:hover {
  color: var(--on-dark);
}
.site-title svg {
  image-rendering: pixelated;
}
.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 16px;
}
.site-nav a {
  color: var(--on-dark);
  text-decoration: none;
  font-size: 16px;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 4px;
}
.site-nav a[aria-current='page'],
.site-nav a:hover {
  color: var(--accent-gold);
}
.site-nav a[aria-current='page']::before {
  content: '▶';
  font-size: 12px;
  margin-right: 4px;
}

main {
  flex: 1;
  width: 100%;
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 24px 16px 48px;
}

/* ---- footer ---- */
.site-footer {
  background: var(--footer-bg);
  color: var(--on-dark);
  border-top: 4px solid var(--frame-wood-dark);
  font-family: var(--font-ui);
  font-size: 14px;
}
.site-footer__inner {
  max-width: var(--page-width);
  margin: 0 auto;
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
}
.site-footer a {
  color: var(--accent-gold);
  display: inline-block;
  min-height: 24px;
}

/* ---- components ---- */
.frame {
  background: var(--paper);
  color: var(--ink);
  border: 4px solid var(--frame-wood-light);
  outline: 2px solid var(--frame-wood-dark);
  outline-offset: -2px;
  box-shadow: var(--shadow-px-lg);
  padding: 16px;
}

.dialogue {
  background: var(--bg-dark);
  color: var(--on-dark);
  border: 4px solid var(--frame-wood-light);
  box-shadow: var(--shadow-px-lg);
  padding: 16px 16px 24px;
  position: relative;
  line-height: 1.8;
  max-width: var(--reading-width);
  font-family: var(--font-pixel-cjk);
  -webkit-font-smoothing: none;
}
.dialogue p {
  margin: 0 0 8px;
}
.dialogue p:last-child {
  margin-bottom: 0;
}
.dialogue .dialogue__sub {
  color: var(--on-dark-muted);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}
.dialogue::after {
  content: '▼';
  position: absolute;
  right: 12px;
  bottom: 4px;
  font-size: 12px;
  color: var(--accent-gold);
  animation: blink 1s steps(2, start) infinite;
}
@keyframes blink {
  to {
    visibility: hidden;
  }
}
@media (prefers-reduced-motion: reduce) {
  .dialogue::after {
    animation: none;
  }
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: 8px 16px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--bg-dark);
  box-shadow: var(--shadow-px);
  font-family: var(--font-pixel-cjk);
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  -webkit-font-smoothing: none;
}
.btn:hover {
  background: var(--bg-cream-deep);
  color: var(--ink);
}
.btn:active {
  transform: translate(2px, 2px);
  box-shadow: none;
}
.btn--primary {
  background: var(--btn-primary);
  color: var(--on-dark);
}
.btn--primary:hover {
  background: var(--btn-primary-hover);
  color: var(--on-dark);
}

.badge {
  display: inline-block;
  padding: 0 8px;
  font-family: var(--font-pixel-cjk);
  font-size: 12px;
  line-height: 24px;
  background: var(--bg-cream-deep);
  color: var(--ink);
  border: 2px solid var(--bg-dark);
  -webkit-font-smoothing: none;
}
.badge--ready {
  background: var(--btn-primary);
  color: var(--on-dark);
}
.badge--rose {
  background: var(--badge-rose);
  color: var(--on-dark);
}

.lead {
  color: var(--ink-muted);
  max-width: var(--reading-width);
  text-wrap: pretty;
}
.lead--wide {
  max-width: none;
}
.nowrap {
  white-space: nowrap;
}

.prose {
  font-family: var(--font-legible);
  font-size: 17px;
  line-height: 1.85;
  max-width: var(--reading-width);
  -webkit-font-smoothing: antialiased;
}
@media (min-width: 768px) {
  .prose {
    font-size: 18px;
  }
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 24px;
}

/* ---- stage-2 skills page ---- */
.skill-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}
.skill-card {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 44px;
  background: var(--paper);
  color: var(--ink);
  border: 2px solid var(--frame-wood-light);
}
.skill-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding: 10px 12px;
  color: var(--ink);
  text-decoration: none;
}
a.skill-card__body:hover,
a.skill-card__body:focus-visible {
  background: var(--bg-cream);
  color: var(--ink);
}
/* per-card full-window link (site-card-deeplink): its own >= 44 px tap target */
.skill-card__full {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  min-height: 44px;
  padding: 0 12px;
  border-top: 1px solid var(--frame-wood-light);
  color: var(--ink);
  font-size: 14px;
  text-decoration: underline;
}
.skill-card__full:hover,
.skill-card__full:focus-visible {
  background: var(--bg-cream);
  color: var(--ink);
}
.skill-card__name {
  font-family: var(--font-pixel-cjk);
  font-size: 16px;
  -webkit-font-smoothing: none;
}
.skill-card__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.skill-card__desc {
  font-size: 14px;
  line-height: 1.6;
  overflow-wrap: anywhere;
}
/* 製作中: greyed, no link */
.skill-card--wip {
  background: var(--bg-cream-deep);
  color: var(--ink-muted);
  border-style: dashed;
}
.skill-card--wip .skill-card__body {
  color: var(--ink-muted);
  cursor: default;
}
.badge--mode {
  background: var(--paper);
  color: var(--ink);
}
.badge--wip {
  background: var(--bg-cream);
  color: var(--ink-muted);
}

.player {
  margin-top: 24px;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-dark);
  color: var(--on-dark);
  border: 4px solid var(--frame-wood-light);
  box-shadow: var(--shadow-px-lg);
}
.player iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}
.player[hidden] {
  display: none;
}