/* ============================================================
   DOCS.JM GLASS — Sistema de diseño
   Rediseño total (2026). Autor: Jose Miguel Maldonado Garcia
   ============================================================ */

/* ── Tokens de diseño (tema oscuro por defecto) ── */
:root {
  --bg-primary: #06070d;
  --ambient-1: rgba(99, 102, 241, 0.16);
  --ambient-2: rgba(167, 139, 250, 0.12);
  --ambient-3: rgba(34, 211, 238, 0.08);

  --glass-bg: rgba(18, 21, 38, 0.55);
  --glass-bg-strong: rgba(15, 18, 32, 0.72);
  --glass-bg-subtle: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-strong: rgba(255, 255, 255, 0.14);
  --glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.07);
  --blur: blur(20px) saturate(140%);

  --text-primary: #eef0fa;
  --text-secondary: #9aa1c0;
  --text-muted: #5f6684;

  --accent: #6366f1;
  --accent-2: #a78bfa;
  --accent-3: #22d3ee;
  --accent-gradient: linear-gradient(135deg, var(--accent), var(--accent-2));
  --text-gradient: linear-gradient(120deg, #818cf8 0%, #c4b5fd 50%, #67e8f9 100%);
  --accent-soft: rgba(99, 102, 241, 0.14);

  --code-bg: rgba(10, 12, 24, 0.8);
  --table-stripe: rgba(255, 255, 255, 0.025);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 24px -8px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 24px 60px -16px rgba(0, 0, 0, 0.55);
  --shadow-accent: 0 8px 32px -8px rgba(99, 102, 241, 0.35);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --sidebar-width: 300px;
  --header-height: 64px;
  --content-max: 1120px;

  --transition: 200ms ease;
  --spring: 320ms cubic-bezier(0.16, 1, 0.3, 1);
  --scrollbar-thumb: rgba(255, 255, 255, 0.12);
}

/* ── Tema claro ── */
[data-theme="light"] {
  --bg-primary: #eef1f9;
  --ambient-1: rgba(99, 102, 241, 0.22);
  --ambient-2: rgba(167, 139, 250, 0.18);
  --ambient-3: rgba(34, 211, 238, 0.14);

  --glass-bg: rgba(255, 255, 255, 0.55);
  --glass-bg-strong: rgba(255, 255, 255, 0.78);
  --glass-bg-subtle: rgba(255, 255, 255, 0.45);
  --glass-border: rgba(13, 20, 40, 0.09);
  --glass-border-strong: rgba(13, 20, 40, 0.16);
  --glass-highlight: inset 0 1px 0 rgba(255, 255, 255, 0.7);

  --text-primary: #171a2c;
  --text-secondary: #4c5472;
  --text-muted: #8a90ac;

  --accent: #4f46e5;
  --accent-2: #7c3aed;
  --accent-3: #0891b2;
  --accent-soft: rgba(79, 70, 229, 0.1);

  --code-bg: rgba(23, 26, 44, 0.94);
  --table-stripe: rgba(13, 20, 40, 0.03);

  --shadow-sm: 0 2px 8px rgba(23, 26, 44, 0.06);
  --shadow-md: 0 8px 24px -8px rgba(23, 26, 44, 0.1);
  --shadow-lg: 0 24px 60px -16px rgba(23, 26, 44, 0.16);
  --shadow-accent: 0 8px 32px -8px rgba(79, 70, 229, 0.25);
  --scrollbar-thumb: rgba(13, 20, 40, 0.16);
}

/* ── Reset y base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  overflow: hidden;
  height: 100vh;
  transition: background-color var(--transition), color var(--transition);
}

/* Cross-fade de superficies al cambiar de tema */
.app-header,
.app-sidebar,
.glass,
.glass-strong,
.btn-icon,
.search-input,
.chip,
.stat-chip {
  transition: background-color var(--transition), border-color var(--transition),
    color var(--transition), box-shadow var(--transition);
}

::selection {
  background: var(--accent-soft);
  color: var(--text-primary);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Utilidades glass ── */
.glass,
.glass-strong {
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight), var(--shadow-md);
  border-radius: var(--radius-lg);
}
.glass { background: var(--glass-bg); }
.glass-strong { background: var(--glass-bg-strong); }

/* ── Fondo ambiental ── */
.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}
.ambient-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
}
.ambient-blob-1 {
  width: 55vw; height: 55vw;
  top: -20vw; left: -10vw;
  background: radial-gradient(circle, var(--ambient-1), transparent 65%);
}
.ambient-blob-2 {
  width: 45vw; height: 45vw;
  top: 30vh; right: -15vw;
  background: radial-gradient(circle, var(--ambient-2), transparent 65%);
}
.ambient-blob-3 {
  width: 40vw; height: 40vw;
  bottom: -18vw; left: 30vw;
  background: radial-gradient(circle, var(--ambient-3), transparent 65%);
}

/* Deriva lenta de los resplandores: hace visible el blur de los paneles */
.ambient-blob-1 { animation: ambient-drift-1 38s ease-in-out infinite alternate; }
.ambient-blob-2 { animation: ambient-drift-2 46s ease-in-out infinite alternate; }
.ambient-blob-3 { animation: ambient-drift-3 52s ease-in-out infinite alternate; }
.ambient-blob { will-change: transform; }

@keyframes ambient-drift-1 {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(9vw, 7vh, 0) scale(1.15); }
}
@keyframes ambient-drift-2 {
  from { transform: translate3d(0, 0, 0) scale(1.08); }
  to { transform: translate3d(-8vw, -6vh, 0) scale(0.94); }
}
@keyframes ambient-drift-3 {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(-7vw, 6vh, 0) scale(1.12); }
}

/* ── Layout principal ── */
.app-layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-rows: var(--header-height) 1fr;
  grid-template-columns: var(--sidebar-width) 1fr;
  gap: 16px;
  height: 100vh;
  padding: 0 16px 16px;
}

/* ── Header flotante ── */
.app-header {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  margin-top: 12px;
  border-radius: var(--radius-lg);
  z-index: 100;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
}
.header-brand-logo {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.header-brand-title {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}
.header-brand-dot { color: var(--accent-2); }

.header-controls { display: flex; gap: 8px; align-items: center; }

.btn-icon {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-icon:hover {
  background: var(--glass-bg-subtle);
  border-color: var(--glass-border);
  color: var(--text-primary);
}
.btn-icon:active { transform: scale(0.94); }
#theme-toggle svg { transition: transform var(--spring); }
#theme-toggle:hover svg { transform: rotate(25deg) scale(1.08); }

.btn-hamburger { display: none; }

/* Contenido: columna centrada con scroll propio */
.app-content {
  overflow-y: auto;
  overflow-x: hidden;
  border-radius: var(--radius-lg);
  scroll-padding-top: 16px;
}

/* ── Sidebar: panel flotante ── */
.app-sidebar {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  z-index: 90;
}

.sidebar-search { padding: 14px 14px 10px; }

.search-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}
.search-wrapper > svg {
  position: absolute;
  left: 12px;
  color: var(--text-muted);
  pointer-events: none;
}
.search-input {
  width: 100%;
  padding: 10px 54px 10px 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-subtle);
  color: var(--text-primary);
  font: inherit;
  font-size: 0.875rem;
  outline: none;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.search-shortcut {
  position: absolute;
  right: 10px;
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  padding: 2px 6px;
  pointer-events: none;
}
.search-input:focus ~ .search-shortcut { opacity: 0; }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 4px 10px 10px;
}

/* Categorías colapsables */
.nav-category { margin-bottom: 6px; }
.nav-category-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  user-select: none;
}
.nav-category-header:hover { color: var(--text-primary); background: var(--glass-bg-subtle); }
.nav-category-header svg { flex-shrink: 0; }
.nav-category-count { margin-left: auto; font-weight: 600; }
.nav-category-chevron { transition: transform var(--transition); }
.nav-category.collapsed .nav-category-chevron { transform: rotate(-90deg); }
.nav-category.collapsed .nav-category-items { display: none; }

/* Items de manual */
.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  margin: 2px 0;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
}
.nav-item:hover {
  background: var(--glass-bg-subtle);
  border-color: var(--glass-border);
}
.nav-item.active {
  background: var(--accent-soft);
  border-color: var(--glass-border-strong);
  box-shadow: var(--glass-highlight);
}
.nav-item.active .nav-item-title { color: var(--text-primary); font-weight: 600; }
.nav-item-title {
  flex: 1;
  min-width: 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Chip de tecnología */
.chip {
  flex-shrink: 0;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--chip-color, var(--accent));
  color: #fff;
}
.chip-match { background: var(--accent-gradient); }

/* Punto "Nuevo" */
.new-dot {
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: 0 0 8px var(--accent);
}

/* Sub-items de secciones coincidentes */
.nav-sub-items {
  margin: 2px 0 6px 18px;
  padding-left: 10px;
  border-left: 1px solid var(--glass-border);
}
.nav-sub-item {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-muted);
  cursor: pointer;
}
.nav-sub-item:hover { color: var(--text-primary); background: var(--glass-bg-subtle); }
.nav-sub-item span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-no-results {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 32px 16px;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-align: center;
}

/* Footer del sidebar */
.sidebar-footer {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 12px 14px 14px;
  border-top: 1px solid var(--glass-border);
}
.sidebar-footer-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.sidebar-footer-item:hover {
  background: var(--glass-bg-subtle);
  border-color: var(--glass-border);
  color: var(--text-primary);
}
.sidebar-footer-item.active {
  background: var(--accent-soft);
  border-color: var(--glass-border-strong);
  color: var(--text-primary);
}
.sidebar-footer-item svg { flex-shrink: 0; }

/* ── Responsive: sidebar como cajón ── */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  z-index: 101;
  background: rgba(4, 5, 10, 0.5);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}
.sidebar-overlay.active { opacity: 1; pointer-events: auto; }
.sidebar-overlay.active {
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

@media (max-width: 1024px) {
  :root { --sidebar-width: 260px; }
}

@media (max-width: 767px) {
  .app-layout {
    grid-template-columns: 1fr;
    padding: 0 10px 10px;
    gap: 10px;
  }
  .btn-hamburger { display: grid; }
  .app-sidebar {
    position: fixed;
    top: 12px;
    left: 12px;
    bottom: 12px;
    width: min(320px, calc(100vw - 48px));
    z-index: 102;
    transform: translateX(calc(-100% - 24px));
    transition: transform var(--spring);
  }
  .app-sidebar.open { transform: translateX(0); }
}

/* ── Portada ── */
.welcome-view {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 48px 28px 40px;
  animation: view-in var(--spring) both;
}
@keyframes view-in {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}

.welcome-hero { text-align: center; margin-bottom: 40px; }
.hero-title {
  font-size: clamp(2.6rem, 6vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  background: var(--text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-title span { opacity: 0.85; }
.hero-subtitle {
  margin: 14px auto 0;
  max-width: 520px;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

.welcome-stats {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}
.stat-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  padding: 8px 16px;
  border-radius: 999px;
  background: var(--glass-bg);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-highlight);
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.stat-number {
  font-size: 1.05rem;
  font-weight: 800;
  background: var(--text-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.welcome-section-title {
  margin: 8px 0 18px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
}

/* ── Marquee renovado ── */
.marquee {
  position: relative;
  overflow: hidden;
  padding: 6px 0 18px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee 55s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* Tarjetas de manual */
.manual-card {
  width: 320px;
  flex-shrink: 0;
  padding: 20px;
  cursor: pointer;
  position: relative;
  transition: transform var(--spring), box-shadow var(--spring), border-color var(--transition);
}
.manual-card:hover {
  transform: translateY(-4px);
  border-color: var(--glass-border-strong);
  box-shadow: var(--glass-highlight), var(--shadow-lg), var(--shadow-accent);
}
.manual-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.manual-card-title { font-weight: 700; font-size: 1rem; letter-spacing: -0.01em; }
.manual-card-badges { display: flex; gap: 6px; flex-shrink: 0; }
.manual-card-desc {
  font-size: 0.83rem;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 3.7em;
}
.manual-card-meta {
  display: flex;
  gap: 14px;
  margin-top: 14px;
  font-size: 0.72rem;
  color: var(--text-muted);
}
.manual-card-meta span { display: inline-flex; align-items: center; gap: 5px; }

/* Pill "Nuevo" y "En desarrollo" */
.pill-new,
.pill-soon {
  font-size: 0.62rem;
  font-weight: 700;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.pill-soon { background: none; border: 1px dashed var(--glass-border-strong); color: var(--text-secondary); box-shadow: none; }

/* Próximamente */
.coming-soon-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  max-width: 720px;
  margin: 0 auto 14px;
  padding: 18px 20px;
}
.coming-soon-icon { font-size: 1.4rem; }
.coming-soon-header { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.coming-soon-title { font-weight: 700; }
.coming-soon-desc { font-size: 0.85rem; color: var(--text-secondary); }
.coming-soon-meta { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 0.75rem; color: var(--text-muted); }
.coming-soon-meta span:last-child { display: inline-flex; align-items: center; gap: 5px; }

/* Autor */
.welcome-author {
  display: flex;
  align-items: center;
  gap: 18px;
  max-width: 720px;
  margin: 40px auto 0;
  padding: 22px 26px;
}
.author-avatar {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 16px;
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: var(--shadow-accent);
}
.author-info h3 { font-size: 1rem; font-weight: 700; }
.author-role { font-size: 0.75rem; font-weight: 600; color: var(--text-muted); margin-left: 6px; }
.author-info p { font-size: 0.85rem; color: var(--text-secondary); margin-top: 4px; }

@media (max-width: 767px) {
  .welcome-view { padding: 32px 14px 28px; }
  .manual-card { width: 270px; }
  .welcome-author { flex-direction: column; text-align: center; }
}

/* Accesibilidad: sin movimiento */
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .marquee { overflow-x: auto; -webkit-mask-image: none; mask-image: none; }
  .welcome-view { animation: none; }
  .ambient-blob-1, .ambient-blob-2, .ambient-blob-3 { animation: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ─────────────────────────────────────────────
   Parte 4 · Vista de manual (cabecera, TOC, secciones, código)
   ───────────────────────────────────────────── */

/* ── Vista de manual ── */
.manual-view {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 28px;
  animation: view-in var(--spring) both;
}

.manual-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 26px 28px;
  margin-bottom: 20px;
}
.manual-header-info h1 {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.manual-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-subtle);
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.btn-copy-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex-shrink: 0;
  padding: 9px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-subtle);
  color: var(--text-secondary);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-copy-link:hover { color: var(--text-primary); border-color: var(--glass-border-strong); }
.btn-copy-link.copied {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--text-primary);
}

/* Cuerpo: TOC + contenido */
.manual-body {
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}

.manual-toc {
  position: sticky;
  top: 16px;
  padding: 16px 14px;
  max-height: calc(100vh - var(--header-height) - 90px);
  overflow-y: auto;
}
.toc-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 10px;
  padding: 0 6px;
}
.toc-list { list-style: none; }
.toc-item {
  position: relative;
  padding: 7px 10px 7px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}
.toc-item::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 60%;
  border-radius: 2px;
  background: var(--accent-gradient);
  transition: transform var(--transition);
}
.toc-item:hover { color: var(--text-primary); background: var(--glass-bg-subtle); }
.toc-item.active { color: var(--text-primary); font-weight: 600; background: var(--accent-soft); }
.toc-item.active::before { transform: translateY(-50%) scaleY(1); }

.manual-content {
  min-width: 0;
  max-height: calc(100vh - var(--header-height) - 90px);
  overflow-y: auto;
  padding-right: 6px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Secciones como tarjetas */
.manual-section { padding: 26px 30px; scroll-margin-top: 12px; }
.manual-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--glass-border);
}
.manual-section h3 { font-size: 1.02rem; font-weight: 700; margin: 20px 0 8px; }
.manual-section p { margin: 10px 0; color: var(--text-secondary); font-size: 0.92rem; }
.manual-section strong { color: var(--text-primary); }
.manual-section ul, .manual-section ol { margin: 10px 0 10px 22px; color: var(--text-secondary); font-size: 0.92rem; }
.manual-section li { margin: 5px 0; }
.manual-section a { color: var(--accent-2); text-decoration: none; border-bottom: 1px solid transparent; }
.manual-section a:hover { border-bottom-color: var(--accent-2); }
.manual-section blockquote {
  margin: 12px 0;
  padding: 12px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: var(--accent-soft);
  font-size: 0.88rem;
}
.manual-section blockquote p { margin: 4px 0; }
.manual-section hr { border: none; border-top: 1px solid var(--glass-border); margin: 18px 0; }
.manual-section table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 0.85rem; }
.manual-section th, .manual-section td { padding: 9px 12px; border: 1px solid var(--glass-border); text-align: left; }
.manual-section th { background: var(--glass-bg-subtle); font-weight: 700; color: var(--text-primary); }
.manual-section tr:nth-child(even) td { background: var(--table-stripe); }
.manual-section img {
  max-width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-md);
  margin: 12px 0;
}
.manual-section img.manual-icon {
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 16px;
  padding: 8px;
  background: var(--glass-bg-subtle);
}
.manual-section code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--text-primary);
}

/* Resaltado de búsqueda */
mark.search-highlight {
  background: var(--accent-gradient);
  color: #fff;
  border-radius: 4px;
  padding: 0 3px;
}

/* ── Bloques de código ── */
.code-block {
  margin: 14px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
  background: var(--code-bg);
  overflow: hidden;
}
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 8px 7px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
}
.code-lang {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #8b92b8;
}
.code-block pre {
  margin: 0 !important;
  padding: 16px;
  background: transparent !important;
  overflow-x: auto;
  font-size: 0.82rem;
  text-shadow: none !important;
}
.code-block pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: #e6e9f5;
}
.btn-copy-code {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  color: #aab0cc;
  font: inherit;
  font-size: 0.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-copy-code:hover { color: #fff; border-color: rgba(255, 255, 255, 0.25); }
.btn-copy-code.copied { color: #4ade80; border-color: rgba(74, 222, 128, 0.4); }

@media (max-width: 1024px) {
  .manual-body { grid-template-columns: 200px minmax(0, 1fr); }
}
@media (max-width: 767px) {
  .manual-view { padding: 14px; }
  .manual-header { flex-direction: column; padding: 20px; }
  .manual-body { grid-template-columns: 1fr; }
  .manual-toc { display: none; }
  .manual-content { max-height: none; overflow: visible; padding-right: 0; }
  .manual-section { padding: 20px; }
}

/* ─────────────────────────────────────────────
   Parte 5 · Vistas globales, volver arriba e impresión
   ───────────────────────────────────────────── */

/* ── Vistas globales (Soporte / Licencia) ── */
.global-view {
  max-width: 860px;
  margin: 0 auto;
  padding: 48px 28px 40px;
  animation: view-in var(--spring) both;
}
.global-view-header { text-align: center; margin-bottom: 28px; }
.global-view-header .hero-title { font-size: clamp(2rem, 5vw, 2.8rem); }
.global-view-content { padding: 30px 34px; }
.global-view-content h2 { border: none; padding-bottom: 0; }

/* ── Botón volver arriba ── */
.btn-scroll-top {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 80;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: var(--blur);
  backdrop-filter: var(--blur);
  box-shadow: var(--glass-highlight), var(--shadow-md);
  color: var(--text-secondary);
  cursor: pointer;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all var(--spring);
}
.btn-scroll-top.visible { opacity: 1; transform: none; pointer-events: auto; }
.btn-scroll-top:hover { color: var(--text-primary); border-color: var(--glass-border-strong); transform: translateY(-2px); }

/* ── Impresión ── */
@media print {
  .ambient, .app-header, .app-sidebar, .sidebar-overlay,
  .manual-toc, .btn-scroll-top, .btn-copy-link, .code-block-header { display: none !important; }
  body { overflow: visible; height: auto; background: #fff; color: #000; }
  .app-layout { display: block; height: auto; padding: 0; }
  .app-content, .manual-content { overflow: visible; max-height: none; }
  .manual-view, .global-view { max-width: none; padding: 0; }
  .manual-section, .manual-header, .global-view-content {
    background: #fff; border: none; box-shadow: none; padding: 12px 0;
    backdrop-filter: none; -webkit-backdrop-filter: none;
  }
  .manual-section p, .manual-section ul, .manual-section ol { color: #000; }
  .manual-section strong, .manual-header-info h1 { color: #000; }
  .code-block { background: none; border-color: #bbb; }
  .code-block pre code, .code-block pre code span { color: #000 !important; text-shadow: none !important; }
  .manual-section code, .manual-section th, .manual-section td { color: #000; }
  .manual-body { display: block; }
  .hero-title, .stat-number { background: none; -webkit-text-fill-color: #000; color: #000; }
}