/* ═══════════════════════════════════════════════════════
   DRACU — Ink, parchment, ember
   ═══════════════════════════════════════════════════════ */

/* ── Fonts ──────────────────────────────────────────── */
@font-face {
  font-family: 'Cormorant';
  src: url('/dracu/assets/fonts/Cormorant.woff2') format('woff2');
  font-weight: 300 700;
  font-style: normal;
  font-display: swap;
}

/* ── Tokens: light ──────────────────────────────────── */
:root {
  --paper:    #f4efe4;
  --surface:  #e7ddc8;
  --surface-2:#d9ccb0;
  --stone:    #c2b394;

  --ink:      #211a13;
  --ink-2:    #41372c;
  --ink-3:    #615649;
  --ink-4:    #827668;

  --accent:   #7c1f1f;
  --accent-bg:#f0dcd2;

  --dragon:   #1b5e3e;
  --dragon-bg:#d8e8de;
  --devil:    #8b1a1a;
  --devil-bg: #f0d4d4;
  --name:     #4a3b8c;
  --name-bg:  #e4dff5;

  --focus:    #4a7a9c;
  --border:   rgba(33,26,19,.12);

  --bar-h:    2.75rem;
  --measure:  38rem;
  --gap:      clamp(1.5rem, 3vw, 3rem);

  --font-display: 'Cormorant', 'Georgia', 'Times New Roman', serif;
  --font-body:    'Georgia', 'Times New Roman', serif;
  --font-mono:    'SFMono-Regular', 'Consolas', monospace;
}

/* ── Tokens: dark ───────────────────────────────────── */
[data-theme="dark"] {
  --paper:    #12100c;
  --surface:  #1d1812;
  --surface-2:#2a2318;
  --stone:    #3d3325;

  --ink:      #efe7d6;
  --ink-2:    #d2c9b5;
  --ink-3:    #b2a995;
  --ink-4:    #928a75;

  --accent:   #d99a86;
  --accent-bg:#2c1b14;

  --dragon:   #7cc8a0;
  --dragon-bg:#162a20;
  --devil:    #e89090;
  --devil-bg: #2a1616;
  --name:     #b8a8e8;
  --name-bg:  #1e1a30;

  --focus:    #6aadcc;
  --border:   rgba(239,231,214,.1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper:    #12100c;
    --surface:  #1d1812;
    --surface-2:#2a2318;
    --stone:    #3d3325;
    --ink:      #efe7d6;
    --ink-2:    #d2c9b5;
    --ink-3:    #b2a995;
    --ink-4:    #928a75;
    --accent:   #d99a86;
    --accent-bg:#2c1b14;
    --dragon:   #7cc8a0;
    --dragon-bg:#162a20;
    --devil:    #e89090;
    --devil-bg: #2a1616;
    --name:     #b8a8e8;
    --name-bg:  #1e1a30;
    --focus:    #6aadcc;
    --border:   rgba(239,231,214,.1);
  }
}

/* ── Reset ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  font-size: clamp(1.05rem, 1rem + .22vw, 1.17rem);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .15em; }
a:hover { text-decoration-thickness: 2px; }
img { max-width: 100%; height: auto; display: block; }

/* ── Focus ──────────────────────────────────────────── */
:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 3px;
}

/* ── Layout ─────────────────────────────────────────── */
.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }
.wide { max-width: 56rem; margin: 0 auto; padding: 0 clamp(1rem, 3vw, 2rem); }

/* ── Topbar ─────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; gap: .5rem;
  height: var(--bar-h);
  padding: 0 clamp(.75rem, 2vw, 1.25rem);
  background: var(--paper);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: .02em;
}
.topbar .home { color: var(--ink-3); text-decoration: none; white-space: nowrap; }
.topbar .home:hover { color: var(--ink); }
.topnav { display: flex; gap: .15rem; overflow-x: auto; scrollbar-width: none; }
.topnav::-webkit-scrollbar { display: none; }
.topnav a {
  color: var(--ink-3); text-decoration: none; white-space: nowrap;
  padding: .25rem .5rem; border-radius: 4px;
}
.topnav a:hover { color: var(--ink); background: var(--surface); }
.topnav a[aria-current="true"] { color: var(--ink); font-weight: 600; }
.spacer { flex: 1; }
.chip {
  color: var(--ink-3); text-decoration: none; white-space: nowrap;
  padding: .2rem .6rem; border-radius: 4px;
  font-size: .8rem;
}
.chip:hover { color: var(--ink); background: var(--surface); }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 2rem; height: 2rem; border-radius: 50%;
  border: none; background: none; color: var(--ink-3);
  cursor: pointer; padding: 0;
}
.icon-btn:hover { color: var(--ink); background: var(--surface); }
.icon-btn svg { display: block; }
.icon-btn svg[hidden] { display: none; }

/* ── Sections ───────────────────────────────────────── */
section { scroll-margin-top: calc(var(--bar-h) + 1rem); }
.block { padding: var(--gap) 0; }
.block + .block { border-top: 1px solid var(--border); }

/* ── Typography ─────────────────────────────────────── */
h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 1.5rem + 4vw, 4.4rem);
  line-height: 1.06;
  font-weight: 400;
  letter-spacing: -.01em;
  color: var(--ink);
}
h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.2rem);
  line-height: 1.15;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 1rem;
}
h2 .anchor { color: inherit; text-decoration: none; }
h2 .anchor:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.kicker {
  font-family: var(--font-display);
  font-size: .95rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .5rem;
}
.deck {
  font-size: clamp(1.08rem, 1rem + .35vw, 1.28rem);
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 34rem;
}
.lede {
  font-size: 1.08rem;
  color: var(--ink-2);
  margin-bottom: 1.5rem;
}
.prose { max-width: var(--measure); }
.prose p + p { margin-top: 1em; }

/* ── Hero ───────────────────────────────────────────── */
.hero {
  padding: clamp(3rem, 8vw, 7rem) 0 clamp(2rem, 5vw, 4rem);
  text-align: center;
}
.hero-text { margin-bottom: clamp(2rem, 4vw, 3.5rem); }
.hero h1 { margin-bottom: 1rem; }
.hero .fig { max-width: 30rem; margin: 0 auto; text-align: left; }

/* ── Chain explorer ─────────────────────────────────── */
.chain { margin: 0; }
.chain-tabs {
  display: flex;
  gap: .5rem;
  overflow-x: auto;
  scrollbar-width: none;
  padding-bottom: .5rem;
  margin-bottom: 1rem;
  list-style: none;
}
.chain-tabs::-webkit-scrollbar { display: none; }
.chain-tab {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: .02em;
  white-space: nowrap;
  color: var(--ink-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: .45rem 1.1rem;
  min-height: 44px;
  cursor: pointer;
}
.chain-tab:hover { color: var(--ink); border-color: var(--ink-4); }
.chain-tab[aria-selected="true"] {
  color: var(--paper);
  background: var(--ink);
  border-color: var(--ink);
}
.chain-tab .step-no {
  display: inline-block;
  font-size: .8rem;
  color: var(--ink-4);
  margin-right: .4rem;
  font-weight: 400;
}
.chain-tab[aria-selected="true"] .step-no { color: inherit; opacity: .7; }
.chain-panels {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.chain-panel {
  padding: 1.25rem 1.5rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  border-left-width: 6px;
  background: var(--paper);
}
.chain-panel[hidden] { display: none; }
.chain-panel.m-dragon { border-left-color: var(--dragon); }
.chain-panel.m-devil { border-left-color: var(--devil); }
.chain-panel.m-name { border-left-color: var(--name); }
.chain-panel .form {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  display: block;
}
.chain-panel .gloss {
  display: block;
  font-size: 1.05rem;
  font-style: italic;
  color: var(--ink-2);
  margin: .15rem 0 .6rem;
}
.chain-panel .era {
  display: inline-block;
  font-size: .78rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: .5rem;
}
.chain-panel .why { font-size: .95rem; color: var(--ink-2); line-height: 1.6; }
.chain-panel .why + .why { margin-top: .6em; }
.chain-panel .psrc { font-size: .82rem; color: var(--ink-4); margin-top: .6rem; }
.chain-panel .psrc a { color: var(--ink-3); }
.legend {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  font-size: .85rem;
  color: var(--ink-3);
  margin: 0 0 1rem;
}
.legend li { display: flex; align-items: center; gap: .35rem; }
.legend .dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.legend .m-dragon .dot { background: var(--dragon); }
.legend .m-devil .dot { background: var(--devil); }
.legend .m-name .dot { background: var(--name); }

/* ── Figures ────────────────────────────────────────── */
.fig { margin: 1.5rem 0 0; }
.fig img { border-radius: 6px; }
.fig figcaption {
  font-size: .85rem;
  color: var(--ink-3);
  margin-top: .5rem;
  line-height: 1.45;
}
.fig .cr { font-size: .78rem; display: block; margin-top: .25rem; }
.fig .cr a { color: var(--ink-4); }
.fig-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
@media (min-width: 50rem) {
  .fig-row { grid-template-columns: 1fr 1fr; align-items: start; }
}

/* ── Cognate table ──────────────────────────────────── */
.cognates {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: .95rem;
}
.cognates caption {
  text-align: left;
  font-size: .85rem;
  color: var(--ink-3);
  padding-bottom: .5rem;
}
.cognates th, .cognates td {
  text-align: left;
  padding: .55rem .75rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.cognates thead th {
  font-family: var(--font-display);
  font-size: .82rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 600;
}
.cognates tbody th { font-weight: 400; color: var(--ink-2); }
.cognates .word { font-family: var(--font-display); font-size: 1.1rem; font-weight: 600; }
.cognates tr.hl td, .cognates tr.hl th {
  background: var(--devil-bg);
}
.cognates tr.hl .word { color: var(--devil); }

/* ── Facts DL ───────────────────────────────────────── */
.facts {
  margin-top: 1.5rem;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}
.facts dt {
  font-family: var(--font-display);
  font-size: .85rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-top: .75rem;
}
.facts dt:first-child { margin-top: 0; }
.facts dd { margin-left: 0; color: var(--ink-2); }

/* ── Sources ────────────────────────────────────────── */
.srcs { padding: 0; list-style: none; }
.srcs li {
  padding: .5rem 0;
  border-bottom: 1px solid var(--border);
  font-size: .9rem;
  color: var(--ink-2);
}
.srcs li:last-child { border-bottom: none; }
.srcs a { word-break: break-all; }

/* ── Footer ─────────────────────────────────────────── */
.foot {
  padding: 2rem 0;
  text-align: center;
  font-size: .85rem;
  color: var(--ink-4);
  border-top: 1px solid var(--border);
}
.foot a { color: var(--ink-3); }
.foot p + p { margin-top: .25rem; }
.missing { padding-top: 4rem; text-align: center; }

/* ── Rail (desktop reading rail) ────────────────────── */
.rail { display: none; }
@media (min-width: 90rem) {
  .rail {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    position: fixed;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    z-index: 90;
    font-family: var(--font-display);
    font-size: .72rem;
    letter-spacing: .04em;
  }
  .rail a {
    display: flex; align-items: center; gap: .5rem;
    color: var(--ink-4); text-decoration: none;
    padding: .3rem .5rem;
    border-radius: 4px;
    flex-direction: row-reverse;
  }
  .rail a:hover { color: var(--ink-2); }
  .rail a[aria-current="true"] { color: var(--ink); }
  .rail a[aria-current="true"] i { background: var(--accent); }
  .rail i {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--stone);
    display: block;
    flex-shrink: 0;
  }
}

/* ── Reduced motion ─────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; animation-duration: 0s !important; }
  html { scroll-behavior: auto; }
}

/* ── Print ──────────────────────────────────────────── */
@media print {
  .topbar, .rail, .icon-btn, .chain-tabs { display: none; }
  body { font-size: 11pt; }
  section { break-inside: avoid; }
  .chain-panel[hidden] { display: block; }
}