/* ═══════════ TRUST DEED READING ROOM — Dark Obsidian ═══════════ */
:root {
  --bg: #07090E;
  --bg-card: #0D111A;
  --bg-elev: #141A26;
  --bg-deep: #040508;
  --gold: #D4AF37;
  --gold-soft: #E5C158;
  --gold-dim: rgba(212, 175, 55, 0.15);
  --gold-line: rgba(212, 175, 55, 0.4);
  --ink: #F8FAFC;
  --ink-2: #94A3B8;
  --ink-3: #64748B;
  --serif: 'Cormorant Garamond', serif;
  --sans: 'Outfit', sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: var(--sans); background: var(--bg); color: var(--ink);
  min-height: 100vh; display: flex; flex-direction: column;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
::selection { background: var(--gold); color: #0A0D15; }
a { color: inherit; text-decoration: none; }
button { font-family: var(--sans); }

.reader-header {
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding: 1rem 2.2rem;
  border-bottom: 1px solid rgba(212, 175, 55, 0.1);
  background: rgba(7, 9, 14, 0.9);
  backdrop-filter: blur(14px);
  position: sticky; top: 0; z-index: 50;
}
.back-link {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-size: 0.75rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-2);
  transition: color 0.3s; white-space: nowrap;
}
.back-link:hover { color: var(--gold-soft); }
.back-link svg { width: 16px; height: 16px; }
.reader-title { text-align: center; }
.reader-title h1 { font-family: var(--serif); font-weight: 500; font-size: 1.5rem; letter-spacing: 0.02em; }
.reader-title p { font-size: 0.62rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); margin-top: 0.15rem; }
.reader-actions { display: flex; gap: 0.6rem; }

.icon-btn {
  display: inline-flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: transparent; border: 1px solid rgba(148, 163, 184, 0.25);
  color: var(--ink-2); cursor: pointer;
  transition: color 0.3s, border-color 0.3s, transform 0.3s var(--ease-out);
}
.icon-btn svg { width: 17px; height: 17px; }
.icon-btn:hover { color: var(--gold-soft); border-color: var(--gold-line); transform: translateY(-2px); }
.icon-btn.sm { width: 32px; height: 32px; font-size: 1rem; }

.loading-veil {
  position: fixed; inset: 0; z-index: 200;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.8s var(--ease-out), visibility 0.8s;
}
.loading-veil.done { opacity: 0; visibility: hidden; }
.loading-box { text-align: center; color: var(--gold); width: min(320px, 80vw); }
.loading-mark { width: 64px; height: 64px; margin: 0 auto 1.4rem; animation: markFloat 3s ease-in-out infinite; }
@keyframes markFloat { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.loading-label { font-size: 0.75rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1.2rem; }
.loading-bar { height: 2px; background: rgba(148, 163, 184, 0.15); border-radius: 2px; overflow: hidden; }
.loading-bar span { display: block; height: 100%; width: 0%; background: linear-gradient(90deg, var(--gold), var(--gold-soft)); transition: width 0.3s; }

.reader-layout {
  flex: 1; display: grid;
  grid-template-columns: 130px minmax(0, 1fr);
  min-height: 0;
}

.thumb-tray {
  overflow-y: auto; padding: 1.2rem 0.9rem;
  border-right: 1px solid rgba(212, 175, 55, 0.08);
  background: var(--bg-deep);
  display: flex; flex-direction: column; gap: 0.9rem;
  max-height: calc(100vh - 140px);
  position: sticky; top: 72px;
  scrollbar-width: thin; scrollbar-color: var(--gold-dim) transparent;
}
.thumb {
  border: 1px solid rgba(148, 163, 184, 0.15); border-radius: 6px;
  overflow: hidden; cursor: pointer; position: relative;
  transition: border-color 0.3s, transform 0.3s var(--ease-out), box-shadow 0.3s;
  background: var(--bg-card); flex-shrink: 0;
}
.thumb canvas { width: 100%; display: block; }
.thumb:hover { transform: translateY(-2px); border-color: var(--gold-line); }
.thumb.active { border-color: var(--gold); box-shadow: 0 0 0 2px rgba(212, 175, 55, 0.25), 0 8px 24px rgba(0,0,0,0.4); }
.thumb .thumb-num {
  position: absolute; bottom: 4px; right: 4px;
  background: rgba(4, 5, 8, 0.85); color: var(--gold-soft);
  font-size: 0.58rem; padding: 0.1rem 0.4rem; border-radius: 4px;
  letter-spacing: 0.08em;
}

.book-stage {
  display: flex; align-items: center; justify-content: center;
  gap: 1.4rem; padding: 2.2rem 1.6rem;
  background:
    radial-gradient(ellipse 60% 55% at 50% 35%, rgba(43, 76, 126, 0.14), transparent 65%),
    var(--bg);
}
.page-scene { perspective: 1800px; display: flex; flex-direction: column; align-items: center; min-width: 0; }
.page-card {
  position: relative;
  transform-style: preserve-3d;
  border-radius: 4px;
  box-shadow:
    0 2px 6px rgba(0, 0, 0, 0.5),
    0 30px 90px rgba(0, 0, 0, 0.6),
    0 0 0 1px rgba(212, 175, 55, 0.12);
  background: #fff;
  transition: transform 0.55s var(--ease-out), opacity 0.55s var(--ease-out);
  max-width: 100%;
}
.page-card.turn-next-out { transform: rotateY(-32deg) translateX(-3%); opacity: 0; }
.page-card.turn-next-in { transform: rotateY(26deg); opacity: 0; }
.page-card.turn-prev-out { transform: rotateY(32deg) translateX(3%); opacity: 0; }
.page-card.turn-prev-in { transform: rotateY(-26deg); opacity: 0; }
.page-card.no-motion { transition: none !important; }
#page-canvas { display: block; max-width: 100%; height: auto; border-radius: 4px; }
.page-sheen {
  position: absolute; inset: 0; border-radius: 4px; pointer-events: none;
  background: linear-gradient(115deg, rgba(255,255,255,0.06) 0%, transparent 30%);
}
.page-caption { margin-top: 1.2rem; font-size: 0.72rem; letter-spacing: 0.26em; text-transform: uppercase; color: var(--ink-3); }

.page-arrow {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: rgba(13, 17, 26, 0.85); border: 1px solid rgba(148, 163, 184, 0.2);
  color: var(--ink-2); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 0.35s var(--ease-out);
}
.page-arrow svg { width: 20px; height: 20px; }
.page-arrow:hover:not(:disabled) { color: #0A0D15; background: var(--gold); border-color: var(--gold); transform: scale(1.08); }
.page-arrow:disabled { opacity: 0.25; cursor: default; }

.pagination-dock {
  display: flex; align-items: center; justify-content: space-between; gap: 1.4rem;
  padding: 0.85rem 2.2rem;
  border-top: 1px solid rgba(212, 175, 55, 0.1);
  background: rgba(7, 9, 14, 0.92);
  backdrop-filter: blur(14px);
  position: sticky; bottom: 0; z-index: 50;
  flex-wrap: wrap;
}
.zoom-controls { display: flex; align-items: center; gap: 0.7rem; }
.zoom-level { font-size: 0.72rem; color: var(--ink-3); min-width: 3.2em; text-align: center; letter-spacing: 0.06em; }

.page-numbers { display: flex; align-items: center; gap: 0.35rem; flex-wrap: wrap; justify-content: center; }
.page-num {
  min-width: 34px; height: 34px; padding: 0 0.4rem;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid transparent; border-radius: 8px;
  color: var(--ink-2); font-size: 0.8rem; cursor: pointer;
  transition: all 0.3s var(--ease-out);
}
.page-num:hover { color: var(--gold-soft); border-color: var(--gold-dim); }
.page-num.active {
  background: linear-gradient(120deg, var(--gold), var(--gold-soft));
  color: #0A0D15; font-weight: 600;
  box-shadow: 0 6px 18px rgba(212, 175, 55, 0.3);
}
.page-ellipsis { color: var(--ink-3); font-size: 0.8rem; padding: 0 0.2rem; }

.jump-form { display: flex; align-items: center; gap: 0.6rem; }
.jump-form label { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--ink-3); }
.jump-form input {
  width: 64px; padding: 0.5rem 0.6rem; text-align: center;
  background: rgba(13, 17, 26, 0.85); border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 8px; color: var(--ink); font-size: 0.85rem; outline: none;
  transition: border-color 0.3s;
}
.jump-form input:focus { border-color: var(--gold-line); }
.jump-btn {
  padding: 0.5rem 1.1rem; border-radius: 100px; border: 0; cursor: pointer;
  background: linear-gradient(120deg, var(--gold), var(--gold-soft));
  color: #0A0D15; font-size: 0.72rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  transition: transform 0.3s var(--ease-out), box-shadow 0.3s;
}
.jump-btn:hover { transform: translateY(-2px); box-shadow: 0 8px 22px rgba(212, 175, 55, 0.35); }

:fullscreen .book-stage { min-height: calc(100vh - 80px); }

@media (max-width: 900px) {
  .reader-layout { grid-template-columns: 1fr; }
  .thumb-tray {
    flex-direction: row; max-height: none; position: static;
    overflow-x: auto; overflow-y: hidden;
    border-right: 0; border-bottom: 1px solid rgba(212, 175, 55, 0.08);
    padding: 0.8rem; order: 2;
  }
  .thumb { width: 74px; }
  .reader-title p { display: none; }
  .reader-header { padding: 0.8rem 1rem; }
  .book-stage { padding: 1.4rem 0.7rem; gap: 0.6rem; }
  .page-arrow { width: 42px; height: 42px; }
  .pagination-dock { padding: 0.75rem 1rem; justify-content: center; }
}

/* ── Language toggle & Hindi type ── */
.lang-toggle {
  background: transparent; border: 1px solid rgba(148, 163, 184, 0.3);
  color: var(--ink-2); border-radius: 100px; padding: 0.4rem 0.95rem;
  font-size: 0.75rem; letter-spacing: 0.06em; cursor: pointer;
  font-family: 'Noto Sans Devanagari', 'Outfit', sans-serif;
  transition: color 0.3s, border-color 0.3s;
}
.lang-toggle:hover { color: var(--gold-soft); border-color: var(--gold-line); }
html[lang="hi"] body { font-family: 'Noto Sans Devanagari', 'Outfit', sans-serif; }
html[lang="hi"] .reader-title h1 { font-family: 'Noto Serif Devanagari', 'Cormorant Garamond', serif; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
  }
}