/* ===========================================================
   2030B Ontology Department — Book reader stylesheet
   Layered on top of style.css. Brand prefix: ont-*
   =========================================================== */

/* ---------- chapter index ---------- */
.ont-book-shell {
  max-width: 980px;
  margin: 0 auto;
  padding: clamp(2rem, 4vw, 3.5rem) clamp(1rem, 4vw, 2rem);
}

.ont-book-head {
  border-bottom: 1px solid var(--ont-line);
  padding-bottom: 1.25rem;
  margin-bottom: 2rem;
}
.ont-book-head h1 {
  font-family: 'Fraunces', 'Cairo', serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  letter-spacing: -0.01em;
  margin: 0.2rem 0 0.4rem;
  color: var(--ont-ink);
}
.ont-book-head .ont-book-part {
  font-size: 0.9rem;
  color: rgba(13,10,31,0.65);
  font-weight: 500;
}
html[lang="ar"] .ont-book-head h1,
html[lang="ur"] .ont-book-head h1 {
  font-family: 'Cairo', 'Amiri', serif;
  font-weight: 700;
}

.ont-ch-list {
  list-style: none;
  padding: 0; margin: 0;
  display: grid; gap: 0.75rem;
}
.ont-ch-item { margin: 0; }
.ont-ch-link {
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  gap: 0.1rem 1rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--ont-line);
  border-radius: 14px;
  background: rgba(255,255,255,0.7);
  text-decoration: none;
  color: var(--ont-ink);
  transition: transform .15s ease, border-color .2s ease, box-shadow .2s ease;
}
.ont-ch-link:hover {
  transform: translateY(-1px);
  border-color: rgba(201,161,74,.6);
  box-shadow: 0 10px 24px -16px rgba(13,10,31,0.4);
}
.ont-ch-order {
  grid-row: 1 / span 2;
  font-family: 'Fraunces','Cairo',serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--ont-gold);
  text-align: center;
}
.ont-ch-title {
  font-weight: 600;
  font-size: 1.05rem;
  line-height: 1.35;
}
.ont-ch-sub {
  font-size: 0.85rem;
  color: rgba(13,10,31,0.62);
  line-height: 1.4;
}
.ont-ch-item.is-locked .ont-ch-link {
  opacity: 0.55;
  cursor: not-allowed;
  background: rgba(13,10,31,0.03);
}
.ont-ch-item.is-locked .ont-ch-link:hover { transform: none; box-shadow: none; }
.ont-lock {
  display: inline-flex; align-items: center; gap: .25rem;
  margin-inline-start: .5rem;
  padding: .1rem .5rem;
  font-size: .72rem; font-weight: 600;
  background: rgba(201,49,79,0.12);
  color: var(--ont-rose);
  border-radius: 999px;
}

/* ---------- gate panel (soft "not yet") ---------- */
.ont-gate-panel {
  border: 1px solid rgba(201,49,79,0.25);
  background: linear-gradient(180deg, rgba(201,49,79,0.06), rgba(201,161,74,0.04));
  border-radius: 16px;
  padding: 1.5rem 1.4rem;
  margin: 1.5rem 0;
}
.ont-gate-panel h3 {
  font-family: 'Fraunces','Cairo',serif;
  font-size: 1.3rem;
  margin: 0 0 .5rem;
  color: var(--ont-rose);
}
.ont-gate-panel p { margin: 0 0 .6rem; line-height: 1.55; }
.ont-gate-meta {
  display: inline-flex; gap: 1rem;
  font-size: .85rem; color: rgba(13,10,31,.65);
  margin-top: .4rem;
}
.ont-gate-meta strong { color: var(--ont-ink); font-weight: 600; }
.ont-gate-actions {
  display: flex; flex-wrap: wrap; gap: .6rem;
  margin-top: 1rem;
}

/* ---------- reader ---------- */
.ont-reader-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1rem, 4vw, 2rem) 5rem;
}
.ont-reader-head {
  border-bottom: 1px solid var(--ont-line);
  padding-bottom: 1rem;
  margin-bottom: 1.5rem;
}
.ont-reader-head h1 {
  font-family: 'Fraunces','Cairo',serif;
  font-weight: 700;
  font-size: clamp(1.6rem, 3.5vw, 2.2rem);
  margin: .25rem 0 .35rem;
  color: var(--ont-ink);
}
.ont-reader-sub {
  font-size: .95rem; color: rgba(13,10,31,.62);
  line-height: 1.45;
}
.ont-fallback-note {
  margin: 1rem 0 0;
  padding: .7rem 1rem;
  border: 1px dashed rgba(91,43,201,0.4);
  border-radius: 10px;
  background: rgba(91,43,201,0.04);
  color: rgba(13,10,31,0.7);
  font-size: .85rem;
  line-height: 1.5;
}

.ont-reader-body {
  font-size: 1.05rem;
  line-height: 1.85;
  color: var(--ont-ink);
}
.ont-reader-body[dir="rtl"] {
  font-family: 'Cairo','Amiri','Noto Naskh Arabic',serif;
  font-size: 1.15rem;
  line-height: 2;
  text-align: start;
}
.ont-reader-body h1,
.ont-reader-body h2,
.ont-reader-body h3,
.ont-reader-body h4 {
  font-family: 'Fraunces','Cairo',serif;
  font-weight: 700;
  line-height: 1.25;
  margin: 2rem 0 .8rem;
  color: var(--ont-ink);
}
.ont-reader-body[dir="rtl"] h1,
.ont-reader-body[dir="rtl"] h2,
.ont-reader-body[dir="rtl"] h3,
.ont-reader-body[dir="rtl"] h4 {
  font-family: 'Cairo','Amiri',serif;
}
.ont-reader-body h2 { font-size: 1.55rem; color: var(--ont-violet); }
.ont-reader-body h3 { font-size: 1.25rem; color: var(--ont-emerald); }
.ont-reader-body p  { margin: 0 0 1.1rem; }
.ont-reader-body hr {
  border: none;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ont-gold-soft), transparent);
  margin: 2.2rem 0;
}
.ont-reader-body blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.2rem;
  border-inline-start: 3px solid var(--ont-gold);
  background: rgba(201,161,74,0.07);
  font-style: italic;
  border-radius: 0 10px 10px 0;
}
.ont-reader-body[dir="rtl"] blockquote {
  border-radius: 10px 0 0 10px;
}
.ont-reader-body code {
  font-family: 'JetBrains Mono', 'Menlo', monospace;
  background: rgba(13,10,31,0.05);
  padding: .1rem .35rem;
  border-radius: 4px;
  font-size: .92em;
}
.ont-reader-body ul, .ont-reader-body ol {
  padding-inline-start: 1.4rem;
  margin: 0 0 1.2rem;
}
.ont-reader-body li { margin: .3rem 0; }

.ont-reader-nav {
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 2.5rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--ont-line);
  gap: .8rem;
}
.ont-reader-nav a {
  padding: .55rem .9rem;
  border-radius: 999px;
  border: 1px solid var(--ont-line);
  background: rgba(255,255,255,.7);
  color: var(--ont-ink);
  text-decoration: none;
  font-size: .9rem; font-weight: 500;
}
.ont-reader-nav a:hover { border-color: var(--ont-gold); }
.ont-reader-nav a[hidden] { display: none; }

/* ---------- dev panel ---------- */
.ont-dev-panel {
  position: fixed; bottom: 1rem; inset-inline-end: 1rem;
  background: rgba(13,10,31,0.92);
  color: #f5efe2;
  padding: .6rem .8rem;
  border-radius: 12px;
  font-size: .78rem;
  z-index: 9999;
  display: flex; align-items: center; gap: .5rem;
  box-shadow: 0 8px 24px -8px rgba(0,0,0,0.4);
}
.ont-dev-panel input {
  width: 3.5rem;
  padding: .15rem .4rem;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.08);
  color: #fff;
  font-size: .78rem;
}
.ont-dev-panel button {
  padding: .2rem .55rem;
  border-radius: 6px;
  background: var(--ont-gold);
  color: var(--ont-ink);
  border: none;
  font-weight: 600;
  font-size: .75rem;
  cursor: pointer;
}