:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-deep: #040a14;
  --bg-panel: rgba(9, 18, 33, 0.9);
  --bg-panel-strong: rgba(11, 21, 39, 0.96);
  --bg-soft: rgba(20, 36, 62, 0.72);
  --surface: rgba(12, 23, 42, 0.78);
  --surface-strong: rgba(17, 30, 52, 0.94);
  --surface-warm: rgba(38, 24, 17, 0.76);
  --text: #eef4ff;
  --muted: #97aac8;
  --muted-strong: #c5d1e7;
  --line: rgba(152, 176, 214, 0.18);
  --line-strong: rgba(152, 176, 214, 0.3);
  --accent: #58dfd0;
  --accent-strong: #29b6b3;
  --accent-soft: rgba(88, 223, 208, 0.14);
  --warm: #ff9b54;
  --warm-soft: rgba(255, 155, 84, 0.16);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.38);
  --shadow-soft: 0 18px 40px rgba(0, 0, 0, 0.24);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-sm: 14px;
  --sidebar-width: 336px;
  --toc-width: 300px;
  --content-width: 980px;
  --display: "Fraunces", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Space Grotesk", "IBM Plex Sans", "Segoe UI", sans-serif;
  --mono: "JetBrains Mono", "Iosevka", "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--sans);
  background:
    radial-gradient(circle at 12% 14%, rgba(88, 223, 208, 0.18), transparent 24%),
    radial-gradient(circle at 85% 18%, rgba(255, 155, 84, 0.16), transparent 20%),
    radial-gradient(circle at 72% 80%, rgba(88, 223, 208, 0.1), transparent 22%),
    linear-gradient(180deg, #07101c 0%, #091625 45%, #050b14 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.024) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.7), transparent 82%);
  opacity: 0.46;
}

.page-noise,
.page-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.page-noise {
  opacity: 0.12;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.14) 0 1px, transparent 1px),
    radial-gradient(circle at 80% 40%, rgba(255, 255, 255, 0.08) 0 1px, transparent 1px),
    radial-gradient(circle at 60% 78%, rgba(255, 255, 255, 0.12) 0 1px, transparent 1px);
  background-size: 180px 180px, 220px 220px, 260px 260px;
}

.page-glow-a {
  background: radial-gradient(circle at 18% 0%, rgba(88, 223, 208, 0.14), transparent 32%);
}

.page-glow-b {
  background: radial-gradient(circle at 100% 24%, rgba(255, 155, 84, 0.14), transparent 28%);
}

.app-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(280px, var(--sidebar-width)) minmax(0, 1fr) minmax(240px, var(--toc-width));
  gap: 24px;
  align-items: start;
  max-width: 1680px;
  margin: 0 auto;
  padding: 24px;
}

.sidebar,
.toc-panel {
  position: sticky;
  top: 20px;
  height: calc(100vh - 40px);
}

.sidebar-panel,
.toc-card,
.doc-card,
.page-toolbar,
.hero-panel {
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
}

.sidebar-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 18px;
  height: 100%;
  padding: 24px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 22%),
    linear-gradient(160deg, rgba(12, 23, 42, 0.98), rgba(6, 14, 26, 0.92));
  overflow: hidden;
}

.sidebar-panel::before,
.hero-panel::before,
.doc-header::before,
.toc-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.06), transparent 30%),
    radial-gradient(circle at top right, rgba(88, 223, 208, 0.12), transparent 24%);
}

.brand-block {
  display: grid;
  gap: 12px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: center;
}

.brand h1,
.doc-header h1,
#heroTitle {
  margin: 0;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.brand h1 {
  font-size: 1.72rem;
}

.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(88, 223, 208, 1), rgba(41, 182, 179, 0.52)),
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), transparent);
  color: #02161c;
  font-weight: 900;
  font-size: 1.45rem;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.3),
    0 18px 36px rgba(41, 182, 179, 0.24);
}

.brand-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.eyebrow,
.sidebar-label,
.toolbar-label,
.jump-zone-label,
.spotlight-label,
.toc-quick-label {
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.toolbar-label {
  color: var(--muted);
}

.mobile-toggle {
  display: none;
}

.lang-switch {
  display: flex;
  gap: 8px;
}

.lang-button {
  min-width: 58px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease, color 180ms ease;
}

.lang-button:hover,
.lang-button.active {
  color: #031016;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), #8af3e4);
  transform: translateY(-1px);
}

.search-box {
  display: grid;
  gap: 9px;
}

.search-box span {
  color: var(--muted-strong);
  font-size: 0.92rem;
  font-weight: 600;
}

.search-box input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    rgba(3, 10, 19, 0.44);
  color: var(--text);
  font: inherit;
  transition: border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.search-box input::placeholder {
  color: #7486a0;
}

.search-box input:focus {
  outline: none;
  border-color: rgba(88, 223, 208, 0.48);
  box-shadow: 0 0 0 4px rgba(88, 223, 208, 0.12);
  transform: translateY(-1px);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.filter-chip {
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
  transition: all 160ms ease;
}

.filter-chip:hover,
.filter-chip.active {
  color: #09131d;
  border-color: transparent;
  background: linear-gradient(135deg, rgba(255, 155, 84, 0.96), rgba(255, 193, 140, 0.92));
  box-shadow: 0 14px 24px rgba(255, 155, 84, 0.18);
}

.search-results {
  display: grid;
  gap: 10px;
  max-height: 300px;
  padding-right: 6px;
  overflow: auto;
}

.search-results.hidden {
  display: none;
}

.search-result {
  display: grid;
  gap: 8px;
  width: 100%;
  padding: 16px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(17, 30, 52, 0.96), rgba(12, 22, 38, 0.94));
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.search-result:hover {
  transform: translateY(-2px);
  border-color: rgba(88, 223, 208, 0.34);
  box-shadow: var(--shadow-soft);
}

.search-empty {
  cursor: default;
}

.result-topline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: center;
}

.result-title {
  font-size: 0.98rem;
  font-weight: 700;
}

.result-section {
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.result-snippet,
.result-path {
  color: var(--muted);
  line-height: 1.55;
}

.result-path {
  font-family: var(--mono);
  font-size: 0.78rem;
}

.nav-tree {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding-right: 4px;
}

.nav-group {
  display: grid;
  gap: 10px;
  margin-bottom: 20px;
}

.nav-group-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.nav-group-name {
  color: var(--muted-strong);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.nav-group-count {
  min-width: 30px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

.nav-link {
  position: relative;
  display: grid;
  gap: 8px;
  padding: 14px 16px;
  border-radius: 20px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.02);
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.nav-link::before {
  content: "";
  position: absolute;
  inset: 12px auto 12px 0;
  width: 3px;
  border-radius: 999px;
  background: transparent;
  transition: background 180ms ease;
}

.nav-link:hover {
  transform: translateX(3px);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.nav-link.active {
  border-color: rgba(88, 223, 208, 0.28);
  background:
    linear-gradient(180deg, rgba(88, 223, 208, 0.12), rgba(88, 223, 208, 0.03)),
    rgba(255, 255, 255, 0.02);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.nav-link.active::before {
  background: linear-gradient(180deg, var(--accent), rgba(88, 223, 208, 0.1));
}

.nav-link-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
}

.nav-link-title {
  display: block;
  font-size: 0.96rem;
  font-weight: 700;
}

.nav-link-kind {
  flex-shrink: 0;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav-link-path {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-family: var(--mono);
}

.sidebar-footer {
  margin-top: auto;
}

.command-card {
  padding: 16px 18px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(255, 155, 84, 0.12), rgba(88, 223, 208, 0.08)),
    rgba(255, 255, 255, 0.03);
}

.footer-label {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.84rem;
}

.command-card code,
.spotlight-item code,
.toc-meta code,
.doc-content code {
  font-family: var(--mono);
}

.content-area {
  min-width: 0;
  display: grid;
  gap: 18px;
}

.hero-panel {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.9fr);
  gap: 24px;
  padding: 28px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    radial-gradient(circle at top right, rgba(88, 223, 208, 0.18), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 155, 84, 0.12), transparent 24%),
    linear-gradient(145deg, rgba(10, 21, 37, 0.96), rgba(20, 29, 49, 0.9));
}

.hero-copy {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 14px;
  align-content: start;
}

#heroTitle {
  font-family: var(--display);
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  max-width: 12ch;
}

#heroLead {
  max-width: 62ch;
  margin: 0;
  color: var(--muted-strong);
  font-size: 1.02rem;
  line-height: 1.8;
}

.hero-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.hero-stat-card {
  display: grid;
  gap: 8px;
  align-content: start;
  min-height: 132px;
  padding: 18px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    rgba(6, 13, 24, 0.36);
}

.hero-stat-label {
  color: var(--muted);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero-stat-value {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.hero-stat-meta {
  color: var(--muted-strong);
  font-size: 0.88rem;
  line-height: 1.55;
}

.page-toolbar {
  position: sticky;
  top: 18px;
  z-index: 10;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  padding: 14px 18px;
  border-radius: 22px;
  background: rgba(7, 18, 31, 0.72);
}

.toolbar-copy {
  min-width: 0;
}

#pageBreadcrumb {
  overflow: hidden;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.toolbar-actions {
  display: flex;
  gap: 10px;
}

.ghost-button {
  padding: 11px 15px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, color 160ms ease;
}

.ghost-button:hover {
  transform: translateY(-1px);
  border-color: rgba(88, 223, 208, 0.32);
  background: rgba(88, 223, 208, 0.08);
}

.doc-card {
  padding: 28px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(10, 20, 36, 0.95), rgba(8, 16, 30, 0.92)),
    rgba(10, 20, 36, 0.95);
}

.doc-header {
  position: relative;
  margin-bottom: 28px;
  padding: 30px;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at top right, rgba(88, 223, 208, 0.14), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 155, 84, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(18, 29, 50, 0.96), rgba(10, 19, 33, 0.96));
}

.doc-header-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.75fr);
  gap: 24px;
  align-items: start;
}

.doc-header-copy {
  display: grid;
  gap: 18px;
}

.doc-header h1 {
  font-family: var(--display);
  font-size: clamp(2.1rem, 4vw, 4rem);
  max-width: 14ch;
}

.doc-excerpt {
  max-width: 70ch;
  color: var(--muted-strong);
  font-size: 1.02rem;
  line-height: 1.82;
}

.doc-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.meta-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted-strong);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.meta-pill.accent {
  color: #041118;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), #8af3e4);
}

.doc-jump-zone {
  display: grid;
  gap: 12px;
}

.jump-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.jump-chip,
.doc-quick-empty {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.jump-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 155, 84, 0.34);
  background: rgba(255, 155, 84, 0.1);
}

.doc-quick-empty {
  color: var(--muted);
}

.doc-spotlight {
  position: relative;
  display: grid;
  gap: 14px;
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(160deg, rgba(255, 155, 84, 0.1), rgba(88, 223, 208, 0.08)),
    rgba(4, 12, 22, 0.5);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.spotlight-title {
  font-size: 1.28rem;
  font-weight: 800;
  line-height: 1.18;
}

.spotlight-grid {
  display: grid;
  gap: 10px;
}

.spotlight-item {
  display: grid;
  gap: 5px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.04);
}

.spotlight-item span {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.spotlight-item strong {
  display: block;
  color: var(--text);
  line-height: 1.45;
  word-break: break-word;
}

.spotlight-item code {
  padding: 0;
  background: transparent;
  color: inherit;
  font-size: 0.84rem;
}

.doc-content-wrap {
  padding: 0 4px;
}

.doc-content {
  color: var(--text);
  line-height: 1.86;
  animation: fade-in 280ms ease;
}

.doc-content > *:first-child {
  margin-top: 0;
}

.doc-content h1,
.doc-content h2,
.doc-content h3,
.doc-content h4 {
  scroll-margin-top: 120px;
  letter-spacing: -0.03em;
}

.doc-content h1 {
  font-family: var(--display);
  font-size: 2.4rem;
}

.doc-content h2 {
  position: relative;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-left: 16px;
  font-family: var(--display);
  font-size: 1.8rem;
}

.doc-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--warm));
  box-shadow: 0 0 0 6px rgba(88, 223, 208, 0.08);
}

.doc-content h3 {
  margin-top: 2rem;
  margin-bottom: 0.85rem;
  font-size: 1.28rem;
}

.doc-content p,
.doc-content ul,
.doc-content ol,
.doc-content table,
.doc-content pre {
  margin: 0 0 1.3rem;
}

.doc-content p {
  color: #dce6f5;
}

.doc-content a {
  color: #8ef7eb;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
}

.doc-content strong {
  color: #ffffff;
}

.doc-content code {
  padding: 0.18rem 0.45rem;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.92em;
}

.doc-content pre {
  overflow: auto;
  padding: 18px 20px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(4, 11, 20, 0.98), rgba(8, 18, 31, 0.98));
  color: #eef8fb;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.doc-content pre code {
  display: block;
  padding: 0;
  background: transparent;
  color: inherit;
}

.doc-content ul,
.doc-content ol {
  padding-left: 1.2rem;
}

.doc-content li + li {
  margin-top: 0.52rem;
}

.doc-content li::marker {
  color: var(--warm);
}

.doc-content .table-wrap {
  overflow: auto;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.doc-content table {
  width: 100%;
  border-collapse: collapse;
}

.doc-content th,
.doc-content td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}

.doc-content thead th {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(88, 223, 208, 0.06);
}

.doc-content tbody tr:last-child td {
  border-bottom: 0;
}

.doc-card.is-readme .doc-header {
  background:
    radial-gradient(circle at top right, rgba(88, 223, 208, 0.18), transparent 28%),
    radial-gradient(circle at bottom left, rgba(255, 155, 84, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(19, 31, 54, 0.96), rgba(9, 17, 31, 0.96));
}

.doc-card.is-readme .doc-content > p:first-of-type {
  margin-bottom: 1.8rem;
  color: #eef7ff;
  font-size: 1.12rem;
}

.doc-card.is-readme .doc-content h2 + ul {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  padding: 0;
  list-style: none;
}

.doc-card.is-readme .doc-content h2 + ul li {
  padding: 18px;
  border-radius: 22px;
  border: 1px solid rgba(88, 223, 208, 0.14);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.02)),
    rgba(10, 18, 31, 0.5);
  box-shadow: 0 16px 34px rgba(0, 0, 0, 0.18);
}

.doc-card.is-readme .doc-content h2 + ul li a {
  display: block;
  color: var(--text);
  text-decoration: none;
}

.doc-card.is-readme .doc-content h2 + ul li:hover {
  transform: translateY(-2px);
  transition: transform 160ms ease;
}

.section-highlight {
  animation: pulse-border 1.2s ease;
}

.toc-card {
  position: relative;
  display: grid;
  gap: 18px;
  height: 100%;
  padding: 24px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(8, 18, 31, 0.98), rgba(11, 20, 36, 0.94));
  overflow: hidden;
}

.toc-quick {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.toc-quick-card {
  display: grid;
  gap: 6px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.toc-quick-value {
  font-size: 1rem;
  line-height: 1.3;
}

.toc-list {
  display: grid;
  gap: 6px;
  max-height: 56vh;
  overflow: auto;
}

.toc-link,
.toc-empty {
  display: block;
  padding: 9px 11px;
  border-radius: 14px;
  color: var(--muted-strong);
  text-decoration: none;
  border: 1px solid transparent;
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease, color 150ms ease;
}

.toc-link:hover,
.toc-link.active {
  color: var(--text);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.05);
  transform: translateX(2px);
}

.toc-link.level-1 {
  font-weight: 700;
}

.toc-link.level-2 {
  padding-left: 14px;
}

.toc-link.level-3,
.toc-link.level-4 {
  padding-left: 24px;
  font-size: 0.92rem;
}

.toc-empty {
  color: var(--muted);
  line-height: 1.6;
}

.toc-meta {
  margin-top: auto;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.toc-meta code,
.command-card code {
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  font-size: 0.82rem;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(197, 209, 231, 0.18);
  border: 2px solid transparent;
  background-clip: padding-box;
}

@keyframes fade-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse-border {
  0% {
    box-shadow: 0 0 0 0 rgba(88, 223, 208, 0.26);
  }
  100% {
    box-shadow: 0 0 0 20px rgba(88, 223, 208, 0);
  }
}

@media (max-width: 1360px) {
  .app-shell {
    grid-template-columns: minmax(280px, 320px) minmax(0, 1fr);
  }

  .toc-panel {
    display: none;
  }
}

@media (max-width: 1040px) {
  .hero-panel,
  .doc-header-grid {
    grid-template-columns: 1fr;
  }

  .hero-stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 16px;
  }

  .sidebar,
  .toc-panel {
    position: static;
    height: auto;
  }

  .content-area {
    order: 1;
  }

  .sidebar {
    order: 2;
  }

  .toc-panel {
    order: 3;
    display: block;
  }

  .sidebar-panel {
    height: auto;
  }

  .mobile-toggle {
    display: inline-flex;
    align-self: flex-start;
    padding: 10px 14px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font: inherit;
  }

  .nav-tree {
    display: none;
    max-height: 360px;
  }

  .sidebar.open .nav-tree {
    display: block;
  }

  .page-toolbar {
    position: static;
    flex-direction: column;
    align-items: flex-start;
  }

  #pageBreadcrumb {
    white-space: normal;
  }
}

@media (max-width: 680px) {
  .app-shell {
    padding: 12px;
    gap: 16px;
  }

  .sidebar-panel,
  .hero-panel,
  .doc-card,
  .toc-card {
    padding: 18px;
    border-radius: 24px;
  }

  .hero-stats,
  .toc-quick {
    grid-template-columns: 1fr;
  }

  .doc-header {
    padding: 22px;
  }

  .toolbar-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .ghost-button {
    flex: 1 1 180px;
  }

  .nav-link-top,
  .result-topline {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}