:root {
  --ink: #1A1612;
  --paper: #F4EFE6;
  --gold: #C4A35A;
  --safety: #9B2C2C;
  --muted: #6B645B;
  --line: #E4DCCE;
  --radius: 4px;
  --tap: 44px;
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --deva: "Tiro Devanagari Hindi", "Noto Serif Devanagari", serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { color-scheme: light; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
a:hover { color: var(--gold); }
button, input { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }
img { max-width: 100%; }

.wrap { max-width: 1120px; margin: 0 auto; padding: 0 28px; }

/* Header */
.site-header {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 22px 0 18px;
}
.mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 86px;
  height: 36px;
  padding: 0 12px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 15px;
  letter-spacing: 0.16em;
  flex-shrink: 0;
}
.nav {
  display: flex;
  gap: 28px;
  font-size: 15px;
}
.nav a[aria-current="page"] { box-shadow: inset 0 -2px 0 var(--gold); }

.header-tools {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 16px;
}
.search {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: var(--tap);
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fffdf8;
  min-width: 240px;
}
.search input {
  border: 0;
  outline: none;
  background: transparent;
  width: 100%;
  min-height: 40px;
}
.search svg { flex-shrink: 0; color: var(--muted); }
.lang { display: flex; gap: 12px; font-size: 14px; }
.lang button[data-lang="hi"] { font-family: var(--deva); }
.lang button {
  min-height: var(--tap);
  padding: 0 2px;
  color: var(--muted);
}
.lang button[aria-pressed="true"] {
  color: var(--ink);
  box-shadow: inset 0 -2px 0 var(--gold);
}

.menu-btn {
  display: none;
  min-width: var(--tap);
  min-height: var(--tap);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

/* Home */
.home {
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(260px, 0.85fr);
  gap: 72px;
  padding: 36px 0 56px;
}
.kicker {
  color: var(--gold);
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin: 0 0 14px;
}
h1, h2, .serif { font-family: var(--serif); font-weight: 600; }
.session-title {
  font-size: clamp(42px, 6vw, 64px);
  line-height: 1.05;
  margin: 0 0 10px;
  font-weight: 600;
}
.session-sub {
  font-family: var(--serif);
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  margin: 0 0 36px;
}
.field-label {
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.durations { display: flex; gap: 18px; align-items: center; margin-bottom: 28px; }
.durations button {
  width: var(--tap);
  height: var(--tap);
  border-radius: 999px;
  font-size: 18px;
}
.durations button[aria-pressed="true"] {
  box-shadow: 0 0 0 1.5px var(--gold);
  color: var(--ink);
}

.start {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  min-height: 56px;
  border: 1.5px solid var(--gold);
  border-radius: var(--radius);
  color: var(--gold);
  letter-spacing: 0.14em;
  font-size: 15px;
}
.start:hover { background: rgba(196, 163, 90, 0.08); }
.meta { color: var(--muted); font-size: 14px; margin: 12px 0 40px; }

.chapters { margin-top: 8px; }
.chapter-row {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  position: relative;
  margin-top: 18px;
}
.chapter-row::before {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  top: 15px;
  border-top: 1px solid var(--gold);
  opacity: 0.55;
}
.chapter {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  min-width: 0;
  flex: 1;
  color: var(--muted);
  font-size: 13px;
}
.tick {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--gold);
  border-radius: 999px;
  background: var(--paper);
  display: grid;
  place-items: center;
  color: var(--gold);
}

.rail { padding-top: 8px; }
.rail .next-title {
  font-size: 36px;
  margin: 8px 0 6px;
}
.rail .next-sub { color: var(--muted); margin: 0 0 28px; }
.rail-search { margin-top: 8px; }
.rail .search { width: 100%; min-width: 0; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 0 48px;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 22px;
  align-items: start;
}
.book {
  width: 36px;
  height: 36px;
  color: var(--gold);
}
.footer-lead {
  font-family: var(--serif);
  font-size: 22px;
  margin: 0 0 6px;
}
.footer-copy { color: var(--muted); margin: 0; max-width: 62ch; }

/* Interior */
.page { padding: 28px 0 72px; }
.page h1 { font-size: clamp(36px, 5vw, 52px); margin: 0 0 12px; }
.lede { font-family: var(--serif); font-style: italic; font-size: 18px; margin: 0 0 32px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.card {
  display: block;
  padding: 18px 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fffdf8;
  min-height: 140px;
}
.card:hover { border-color: var(--gold); }
.deva { font-family: var(--deva); font-size: 22px; line-height: 1.3; margin: 0 0 4px; }
.iast { font-family: var(--serif); font-style: italic; margin: 0 0 6px; }
.gloss { margin: 0 0 12px; }
.tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--line);
  padding: 3px 7px;
  border-radius: var(--radius);
}

.stack { display: grid; gap: 18px; }
.box {
  padding: 16px 18px;
  border-radius: var(--radius);
}
.claims {
  background: #fffdf8;
  border: 1px solid var(--line);
  font-family: var(--serif);
}
.safety {
  background: #f8eeee;
  border: 1px solid #e2c8c8;
  color: var(--ink);
}
.safety .box-kicker { color: var(--safety); }
.box-kicker {
  font-family: var(--sans);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0 0 8px;
}

.variants { display: flex; flex-wrap: wrap; gap: 8px; }
.variants a, .variants span {
  border: 1px solid var(--line);
  padding: 8px 12px;
  min-height: var(--tap);
  display: inline-flex;
  align-items: center;
  border-radius: var(--radius);
}

.cite { color: var(--muted); font-size: 13px; }

/* Path */
.tracks { display: grid; gap: 16px; }
.track {
  display: block;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.track h2 { margin: 0 0 8px; font-size: 28px; }
.gate {
  border: 1px solid #e2c8c8;
  background: #f8eeee;
  padding: 22px;
  border-radius: var(--radius);
  margin-bottom: 24px;
}
.gate h2 { color: var(--safety); margin-top: 0; }
.gate label { display: flex; gap: 10px; align-items: flex-start; margin: 16px 0; }
.gate input { width: 20px; height: 20px; margin-top: 3px; }
.gate button {
  min-height: var(--tap);
  padding: 0 16px;
  background: var(--ink);
  color: var(--paper);
  border-radius: var(--radius);
}
.gate button:disabled { opacity: 0.4; cursor: not-allowed; }
.hidden { display: none !important; }

/* Player */
.player {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  background: #fffdf8;
}
.player h1 { font-size: 40px; margin: 0 0 8px; }
.breath {
  font-family: var(--serif);
  font-size: 48px;
  margin: 12px 0;
}
.chapter-list { display: grid; gap: 8px; margin: 20px 0; }
.chapter-list button {
  text-align: left;
  min-height: var(--tap);
  padding: 0 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.chapter-list button[aria-current="true"] { border-color: var(--gold); color: var(--gold); }
.close-note { margin-top: 16px; color: var(--muted); }

/* Search results */
.suggest { margin-top: 10px; display: grid; gap: 6px; }
.suggest a { padding: 8px 0; border-bottom: 1px solid var(--line); }
.empty { color: var(--muted); }

@media (max-width: 860px) {
  .nav, .header-tools .search { display: none; }
  .header-tools .search.open, .nav.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    left: 28px;
    right: 28px;
    top: 72px;
    background: var(--paper);
    border: 1px solid var(--line);
    padding: 12px;
    z-index: 5;
  }
  .menu-btn { display: inline-flex; align-items: center; justify-content: center; }
  .site-header { position: relative; }
  .home, .site-footer { grid-template-columns: 1fr; gap: 32px; }
  .session-title { font-size: 40px; }
}