/* ═══════════════════════════════════════════════════════════
   libro.css — Componentes de curso La Sombra
   ═══════════════════════════════════════════════════════════ */

/* ═══ HERO (index) ═══════════════════════════════════════ */
.hero {
  position: relative;
  min-height: calc(100vh - 56px);
  display: flex; flex-direction: column; justify-content: center;
  padding: 5rem 2rem 4rem;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0; height: 300px;
  background: linear-gradient(to bottom, transparent, var(--bg-deep));
  pointer-events: none;
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 30%, rgba(154,143,192,0.07) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { max-width: 900px; margin: 0 auto; text-align: center; }
.hero-eyebrow {
  font-size: 0.68rem; letter-spacing: 0.24em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 1.5rem; opacity: 0.8;
}
.hero-title {
  font-family: var(--font-d);
  font-size: clamp(5rem, 14vw, 11rem);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.02em;
  background: linear-gradient(160deg, var(--cream) 40%, var(--accent-lt) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}
.hero-subtit {
  font-family: var(--font-d);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-style: italic;
  color: var(--cream-dim);
  margin-bottom: 0.75rem;
}
.hero-autor {
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 2rem;
}
.hero-tagline {
  font-size: 0.85rem; color: var(--cream-dim);
  letter-spacing: 0.08em;
  margin-bottom: 2.5rem;
}
.hero-cta { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ═══ GLOBAL PROGRESS (index) ═══════════════════════════ */
.global-progress {
  padding: 4rem 2rem;
  text-align: center;
}
.global-progress-inner {
  display: inline-flex; flex-direction: column; align-items: center; gap: 1rem;
}
.global-ring-wrap { position: relative; }
.global-counter {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-d); font-size: 1.4rem;
  color: var(--cream);
}
.global-label {
  font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--muted);
}

/* ═══ INDEX INTRO CARD ═════════════════════════════════ */
.intro-card {
  max-width: 1200px; margin: 0 auto 3rem; padding: 0 2rem;
}
.intro-card-inner {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--bg-card);
  border: 1px solid var(--accent-bdr);
  border-radius: var(--r);
  padding: 2rem 2.5rem;
  gap: 2rem;
  transition: border-color 0.2s;
}
.intro-card-inner:hover { border-color: var(--accent); }
.intro-card-text h3 {
  font-family: var(--font-d); font-size: 1.5rem; color: var(--cream); margin-bottom: 0.25rem;
}
.intro-card-text p { color: var(--cream-dim); font-size: 0.9rem; }

/* ═══ PARTES GRID (index) ══════════════════════════════ */
.partes-section { padding: 0 2rem 4rem; }
.partes-section h2 {
  font-family: var(--font-d); font-size: 1.5rem;
  color: var(--muted); margin-bottom: 1.5rem;
  max-width: 1200px; margin-left: auto; margin-right: auto;
  padding-bottom: 1.5rem;
}
#partes-grid {
  max-width: 1200px; margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}
.parte-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.75rem;
  transition: all 0.25s var(--ease);
  display: block;
}
.parte-card:hover {
  border-color: var(--parte-color, var(--accent));
  background: var(--bg-hover);
  transform: translateY(-2px);
}
.parte-card-head {
  display: flex; justify-content: space-between; align-items: flex-start;
  margin-bottom: 1rem;
}
.parte-num {
  font-size: 0.65rem; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--parte-color, var(--accent));
}
.parte-titulo {
  font-family: var(--font-d); font-size: 1.4rem; color: var(--cream);
  margin-bottom: 0.3rem;
}
.parte-subtit { font-size: 0.82rem; color: var(--cream-dim); line-height: 1.5; margin-bottom: 1rem; }
.parte-footer { display: flex; justify-content: space-between; align-items: center; margin-bottom: 0.5rem; }
.parte-estado {
  font-size: 0.65rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
}
.parte-estado.active { color: var(--accent); }
.parte-estado.done { color: var(--gold); }
.parte-count { font-size: 0.72rem; color: var(--muted); }
.parte-bar { height: 2px; background: var(--border); border-radius: 1px; overflow: hidden; }
.parte-bar-fill { height: 100%; border-radius: 1px; transition: width 0.8s var(--ease); }

/* ═══ SOBRE EL LIBRO ═══════════════════════════════════ */
.sobre-libro {
  max-width: 1200px; margin: 0 auto;
  padding: 4rem 2rem;
  display: grid; gap: 1rem;
  grid-template-columns: 1fr 1fr;
}
@media (max-width: 768px) { .sobre-libro { grid-template-columns: 1fr; } }
.sobre-libro-text { grid-column: 1 / -1; }
.sobre-libro-text h2 {
  font-family: var(--font-d); font-size: 2rem; color: var(--cream); margin-bottom: 1.5rem;
}

/* ═══ INVENTARIO CTA (index) ═══════════════════════════ */
.inv-cta-section {
  background: var(--gold-dim);
  border-top: 1px solid var(--gold-bdr);
  border-bottom: 1px solid var(--gold-bdr);
  padding: 3rem 2rem;
  text-align: center;
  margin: 2rem 0;
}
.inv-cta-section h2 {
  font-family: var(--font-d); font-size: 2rem; color: var(--gold-lt);
  margin-bottom: 0.75rem;
}
.inv-cta-section p { color: var(--cream-dim); margin-bottom: 1.5rem; max-width: 50ch; margin-left: auto; margin-right: auto; }

/* ═══ PARTE HEADER ════════════════════════════════════ */
.parte-header {
  padding: 4rem 2rem 2rem;
  max-width: 1200px; margin: 0 auto;
}
.parte-header-top {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 2rem; flex-wrap: wrap; gap: 2rem;
}
.parte-header-info {}
.parte-header-label {
  font-size: 0.65rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--parte-col, var(--accent)); margin-bottom: 0.5rem;
}
.parte-header-titulo {
  font-family: var(--font-d);
  font-size: clamp(2.5rem, 7vw, 5rem);
  color: var(--cream); font-weight: 300;
  background: linear-gradient(135deg, var(--cream) 60%, var(--parte-col, var(--accent)));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.parte-header-subtit {
  font-family: var(--font-d); font-style: italic;
  color: var(--cream-dim); font-size: 1.15rem; margin-top: 0.25rem;
}
.parte-progress-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  flex-shrink: 0;
}
.parte-ring { position: relative; }
.parte-ring-counter {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-d); font-size: 1rem; color: var(--cream);
}
.parte-progress-label { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.08em; text-transform: uppercase; }

/* ═══ TOOLBAR ═════════════════════════════════════════ */
.toolbar {
  position: sticky; top: 56px; z-index: 50;
  background: rgba(6,5,12,0.9); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem;
}
.toolbar-inner {
  max-width: 1200px; margin: 0 auto;
  display: flex; align-items: center; gap: 1rem; flex-wrap: wrap;
}
.filter-group { display: flex; gap: 0.375rem; }
.filter-btn {
  padding: 0.35rem 0.85rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--muted); font-size: 0.72rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer; transition: all 0.2s;
  font-family: var(--font-b);
}
.filter-btn:hover { border-color: var(--accent); color: var(--cream); }
.filter-btn.active { background: var(--accent-dim); border-color: var(--accent); color: var(--cream); }
.search-wrap { flex: 1; min-width: 160px; max-width: 320px; }
#cap-search {
  width: 100%; padding: 0.35rem 0.85rem;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--cream); font-size: 0.8rem; font-family: var(--font-b);
  outline: none; transition: border-color 0.2s;
}
#cap-search:focus { border-color: var(--accent-bdr); }
#cap-search::placeholder { color: var(--muted); }

/* ═══ CAPS GRID ═══════════════════════════════════════ */
.caps-grid-wrap { padding: 2rem; max-width: 1200px; margin: 0 auto; }
#caps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem;
}
.no-results {
  color: var(--muted); font-size: 0.9rem; text-align: center;
  grid-column: 1/-1; padding: 3rem;
}
.cap-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 1.5rem 1.25rem 1.25rem;
  cursor: pointer;
  transition: all 0.22s var(--ease);
  position: relative;
  display: flex; flex-direction: column; gap: 0.5rem;
  min-height: 180px;
  overflow: hidden;
}
.cap-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--c, var(--accent));
  opacity: 0; transition: opacity 0.2s;
}
.cap-card:hover {
  border-color: var(--c, var(--accent));
  background: var(--bg-hover);
  transform: translateY(-2px);
}
.cap-card:hover::before { opacity: 1; }
.cap-card.is-read { border-color: rgba(201,168,76,0.2); }
.cap-card-num {
  font-family: var(--font-d);
  font-size: 2.5rem; line-height: 1;
  color: var(--c, var(--accent));
  opacity: 0.18;
  position: absolute; top: 0.75rem; right: 1rem;
}
.cap-card-body { position: relative; z-index: 1; }
.cap-card-titulo {
  font-family: var(--font-d); font-size: 1.15rem;
  color: var(--cream); margin-bottom: 0.25rem;
}
.cap-card-subtit { font-size: 0.78rem; color: var(--cream-dim); line-height: 1.5; margin-bottom: 0.5rem; }
.cap-card-kw {
  font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--c, var(--accent)); opacity: 0.7;
}
.cap-read-badge {
  position: absolute; bottom: 0.75rem; right: 0.75rem;
  color: var(--gold); font-size: 0.85rem;
}

/* ═══ MODAL ═══════════════════════════════════════════ */
#modal-overlay {
  position: fixed; inset: 0;
  background: rgba(6,5,12,0.75);
  z-index: 200;
  opacity: 0; pointer-events: none;
  transition: opacity 0.3s var(--ease);
}
#cap-modal {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(680px, 100vw);
  background: var(--bg-modal);
  border-left: 1px solid var(--border);
  z-index: 201;
  display: flex; flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
  overflow: hidden;
}
#cap-modal.open, #cap-modal.open + #modal-overlay { opacity:1; pointer-events:all; }
#cap-modal.open { transform: translateX(0); }
#modal-overlay.open { opacity: 1; pointer-events: all; }

.modal-header {
  padding: 1.5rem 1.5rem 0;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.modal-meta {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 0.75rem;
}
.modal-parte-num {
  font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent);
}
.modal-nav-btns { display: flex; gap: 0.5rem; }
.modal-nav-btn {
  width: 32px; height: 32px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--cream-dim);
  cursor: pointer; font-size: 1rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.modal-nav-btn:hover:not(:disabled) { border-color: var(--accent); color: var(--cream); }
.modal-nav-btn:disabled { opacity: 0.3; cursor: default; }
.modal-close-btn {
  width: 32px; height: 32px;
  background: transparent; border: 1px solid var(--border);
  border-radius: var(--r); color: var(--muted);
  cursor: pointer; font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  transition: all 0.2s;
}
.modal-close-btn:hover { border-color: var(--accent-bdr); color: var(--cream); }
#modal-titulo {
  font-family: var(--font-d); font-size: 1.8rem;
  color: var(--cream); margin-bottom: 0.2rem;
}
#modal-subtit { font-family: var(--font-d); font-style: italic; color: var(--cream-dim); font-size: 1rem; margin-bottom: 1rem; }

.modal-toolbar {
  display: flex; align-items: center; justify-content: space-between;
  padding-bottom: 0.75rem;
}
.modal-tabs { display: flex; gap: 0; border-bottom: 1px solid var(--border); }
.modal-tab {
  padding: 0.5rem 1rem;
  background: transparent; border: none;
  color: var(--muted); font-size: 0.75rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  cursor: pointer; font-family: var(--font-b);
  border-bottom: 2px solid transparent; margin-bottom: -1px;
  transition: all 0.2s;
}
.modal-tab:hover { color: var(--cream); }
.modal-tab.active { color: var(--accent); border-bottom-color: var(--accent); }
.font-controls { display: flex; gap: 0.25rem; }
.font-btn {
  width: 26px; height: 26px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--muted);
  cursor: pointer; font-family: var(--font-b);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.65rem; transition: all 0.2s;
}
.font-btn:hover { border-color: var(--accent-bdr); color: var(--cream); }

.modal-content {
  flex: 1; overflow-y: auto;
  padding: 1.5rem;
  scroll-behavior: smooth;
}
.modal-content.fs-sm { font-size: 0.9rem; }
.modal-content.fs-md { font-size: 1rem; }
.modal-content.fs-lg { font-size: 1.12rem; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Modal content styles */
.cap-apertura-block {
  font-family: var(--font-d); font-style: italic;
  font-size: 1.1em; line-height: 1.8;
  color: var(--cream); padding: 1.25rem;
  background: var(--accent-dim);
  border-radius: var(--r); margin-bottom: 1.5rem;
  border-left: 3px solid var(--accent);
}
.cap-desarrollo-block { color: var(--cream-dim); line-height: 1.9; }
.cap-desarrollo-block p { margin-bottom: 1.2em; }
.concepto-block {
  margin: 2rem 0;
  padding: 1.25rem 1.5rem;
  background: var(--gold-dim);
  border-left: 3px solid var(--gold);
  border-radius: 0 var(--r) var(--r) 0;
  font-family: var(--font-d); font-style: italic;
  font-size: 1.08em; color: var(--cream); line-height: 1.6;
}
.practica-titulo {
  font-family: var(--font-d); font-size: 1.3rem;
  color: var(--cream); margin-bottom: 1rem;
}
.practica-texto-block {
  color: var(--cream-dim); line-height: 1.9;
}
.practica-texto-block p { margin-bottom: 1.2em; }
.sombra-pregunta-block {
  background: var(--accent-dim); border: 1px solid var(--accent-bdr);
  border-radius: var(--r); padding: 1.25rem;
  margin-bottom: 1.5rem;
}
.sombra-pregunta-block .q-label {
  font-size: 0.65rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 0.5rem;
}
.sombra-pregunta-block p {
  font-family: var(--font-d); font-style: italic;
  color: var(--cream); line-height: 1.7; font-size: 1.05em;
}
.nota-label {
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 0.5rem;
}
#nota-texto {
  width: 100%; min-height: 140px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--cream);
  padding: 0.75rem; font-family: var(--font-b); font-size: 0.9rem;
  line-height: 1.7; resize: vertical; outline: none;
  transition: border-color 0.2s; margin-bottom: 1rem;
}
#nota-texto:focus { border-color: var(--accent-bdr); }
#nota-texto::placeholder { color: var(--muted); }
#btn-marcar {
  width: 100%; padding: 0.75rem;
  background: var(--accent-dim); border: 1px solid var(--accent-bdr);
  border-radius: var(--r); color: var(--accent);
  font-family: var(--font-b); font-size: 0.8rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  cursor: pointer; transition: all 0.2s;
}
#btn-marcar:hover { background: var(--accent); color: var(--bg-deep); }
#btn-marcar.is-done { background: var(--gold-dim); border-color: var(--gold-bdr); color: var(--gold); }

/* ═══ INTRO PAGE ════════════════════════════════════════ */
.intro-sections { max-width: 800px; margin: 0 auto; padding: 3rem 2rem; }
.intro-portada {
  text-align: center; padding: 5rem 0 4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4rem;
}
.intro-portada-titulo {
  font-family: var(--font-d);
  font-size: clamp(4rem, 12vw, 8rem);
  font-weight: 300; color: var(--cream);
  background: linear-gradient(160deg, var(--cream) 40%, var(--accent-lt));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 0.9; margin-bottom: 0.5rem;
}
.intro-portada-subtit {
  font-family: var(--font-d); font-style: italic;
  font-size: 1.4rem; color: var(--cream-dim); margin-bottom: 0.75rem;
}
.intro-portada-autor { font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.5rem; }
.intro-portada-editorial { font-size: 0.72rem; color: var(--accent); letter-spacing: 0.12em; }

.intro-section { margin-bottom: 4rem; }
.intro-section-label {
  font-size: 0.62rem; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); margin-bottom: 1rem; padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}
.derechos-block { color: var(--muted); font-size: 0.82rem; line-height: 2; }
.dedicatoria-block {
  font-family: var(--font-d); font-style: italic;
  font-size: 1.2rem; color: var(--cream-dim);
  text-align: center; padding: 2rem;
  border: 1px solid var(--border); border-radius: var(--r);
  line-height: 1.8;
}
.nota-firma { margin-top: 1.5rem; font-style: normal; font-size: 0.82rem; color: var(--muted); }

/* Índice */
.indice-list { list-style: none; }
.indice-list li {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 0.5rem 0; border-bottom: 1px dotted var(--border);
  color: var(--cream-dim); font-size: 0.9rem;
}
.indice-list li a { color: var(--cream-dim); transition: color 0.2s; }
.indice-list li a:hover { color: var(--accent); }
.indice-list .indice-num { color: var(--muted); font-size: 0.75rem; flex-shrink: 0; margin-left: 0.5rem; }
.indice-parte {
  font-size: 0.65rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--accent); padding: 1rem 0 0.25rem; font-family: var(--font-b);
}

/* ═══ INVENTARIO (cierre) ════════════════════════════════ */
.inv-section { max-width: 900px; margin: 0 auto; padding: 2rem; }
.inv-progress-bar-wrap {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1rem 1.25rem; margin-bottom: 2rem;
}
#inv-counter { font-size: 0.8rem; color: var(--cream-dim); margin-bottom: 0.5rem; }
.inv-bar-track { height: 4px; background: var(--border); border-radius: 2px; overflow: hidden; }
#inv-bar { height: 100%; background: var(--gold); border-radius: 2px; transition: width 0.4s var(--ease); width: 0; }

.inv-area {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); margin-bottom: 1rem; overflow: hidden;
}
.inv-area-head {
  display: flex; align-items: center; gap: 0.75rem;
  padding: 1.25rem; border-bottom: 1px solid var(--border);
  background: rgba(154,143,192,0.04);
}
.inv-simbolo { color: var(--accent); font-size: 1rem; }
.inv-area-nombre {
  font-family: var(--font-d); font-size: 1.2rem; color: var(--cream);
}
.inv-preguntas { padding: 1rem; display: flex; flex-direction: column; gap: 1rem; }
.inv-pregunta {}
.inv-q-label {
  display: flex; align-items: flex-start; gap: 0.5rem;
  font-size: 0.88rem; color: var(--cream-dim); margin-bottom: 0.5rem; line-height: 1.5;
}
.inv-dot { color: var(--muted); font-size: 0.7rem; flex-shrink: 0; margin-top: 0.1rem; transition: color 0.2s; }
.inv-dot.filled { color: var(--gold); }
.inv-pregunta.is-done .inv-q-label { color: var(--cream); }
.inv-textarea {
  width: 100%; min-height: 90px;
  background: var(--bg-dark); border: 1px solid var(--border);
  border-radius: var(--r); color: var(--cream);
  padding: 0.65rem 0.85rem; font-family: var(--font-b); font-size: 0.88rem;
  line-height: 1.7; resize: vertical; outline: none;
  transition: border-color 0.2s;
}
.inv-textarea:focus { border-color: var(--accent-bdr); }
.inv-textarea::placeholder { color: var(--muted); }
.inv-export-wrap { text-align: center; padding: 2rem 0; }

/* ═══ BIBLIOGRAFÍA ═══════════════════════════════════════ */
.biblio-section { max-width: 900px; margin: 0 auto; padding: 2rem; }
#biblio-container {
  display: grid; gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}
.biblio-item {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1.25rem;
  transition: border-color 0.2s;
}
.biblio-item:hover { border-color: var(--accent-bdr); }
.biblio-titulo { font-family: var(--font-d); font-size: 1.1rem; color: var(--cream); margin-bottom: 0.25rem; }
.biblio-meta { font-size: 0.72rem; color: var(--accent); letter-spacing: 0.06em; margin-bottom: 0.75rem; }
.biblio-comentario { font-size: 0.83rem; color: var(--cream-dim); line-height: 1.6; }

/* ═══ CIERRE HERO ════════════════════════════════════════ */
.cierre-hero {
  padding: 5rem 2rem 3rem;
  max-width: 800px; margin: 0 auto; text-align: center;
}
.epilogo-section {
  max-width: 700px; margin: 0 auto; padding: 0 2rem 3rem;
}
.epilogo-section p { margin-bottom: 1.4em; color: var(--cream-dim); line-height: 1.9; font-size: 1.05rem; }
.epilogo-section p:first-child { color: var(--cream); font-size: 1.12rem; }

/* ═══ SECTION HEADINGS (parte/cierre pages) ═══════════════ */
.content-section {
  padding: 3rem 2rem;
}
.content-section h2 {
  font-family: var(--font-d); font-size: 2rem;
  color: var(--cream); margin-bottom: 1.5rem;
  padding-bottom: 1rem; border-bottom: 1px solid var(--border);
}

/* ═══ RESPONSIVE ═════════════════════════════════════════ */
@media (max-width: 768px) {
  .hero { padding: 3rem 1rem 2rem; }
  .intro-card-inner { flex-direction: column; }
  .parte-header-top { flex-direction: column; }
  #cap-modal { width: 100vw; }
  .modal-tabs { gap: 0; }
  .modal-tab { padding: 0.5rem 0.7rem; font-size: 0.68rem; }
  .biblio-section, .inv-section { padding: 1rem; }
}
@media (max-width: 480px) {
  #caps-grid { grid-template-columns: 1fr; }
  #biblio-container { grid-template-columns: 1fr; }
}

/* === Pase de legibilidad de lectura - Alquimia 2026-06-13 === */
.modal-content,.modal-body,.leccion-content,.episodio-content,.reader-content{max-width:44rem;margin-left:auto;margin-right:auto}
.modal-content p,.modal-body p,.cap-desarrollo-block p,.cap-apertura-block p,.epilogo-section p,.tab-panel p,.leccion p,.episodio p,.contenido p,.prosa p{font-weight:400;color:#E9E3D4;line-height:1.9;margin-bottom:1.5em}