/* go-z docs — monochrome design system (Vercel-style)
   Flat surfaces, hairline borders, a single blue link accent.
   Light: white canvas, near-black ink. Dark: near-black canvas, off-white ink. */

:root {
  color-scheme: light;

  --bg: #ffffff;
  --bg-sunken: #fafafa;
  --bg-hover: #f5f5f5;

  --border: #eaeaea;
  --border-strong: #d4d4d4;

  --ink: #171717;
  --ink-soft: #3d3d3d;
  --muted: #666666;
  --faint: #999999;

  --accent: #0070f3;
  --accent-strong: #005cc5;
  --accent-soft: rgba(0, 112, 243, 0.08);
  --on-accent: #ffffff;

  --divider: #f0f0f0;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.12);

  --success: #067647;
  --success-bg: #f0fdf6;
  --success-border: #b7e4cd;
  --warn: #93360d;
  --warn-bg: #fffaeb;
  --warn-border: #f5d9a8;
  --danger: #b42318;
  --danger-bg: #fef3f2;
  --danger-border: #f5c6c0;
  --info: #005cc5;
  --info-bg: #f0f7ff;
  --info-border: #c2e0ff;

  --code-bg: #fafafa;
  --code-header: #fafafa;
  --code-ink: #171717;
  --code-border: #eaeaea;

  --radius-lg: 8px;
  --radius-md: 6px;
  --radius-sm: 4px;

  --topbar-h: 64px;
  --sidebar-w: 264px;
  --toc-w: 224px;
  --max-prose: 720px;

  --t-fast: 120ms;
  --t-base: 200ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-io: cubic-bezier(0.4, 0, 0.2, 1);

  --font-display: "Geist", "Inter", "Segoe UI", system-ui, sans-serif;
  --font-body: "Geist", "Inter", "Segoe UI", system-ui, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

html[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0a0a0a;
  --bg-sunken: #111111;
  --bg-hover: #1a1a1a;

  --border: #262626;
  --border-strong: #3d3d3d;

  --ink: #ededed;
  --ink-soft: #d4d4d4;
  --muted: #a1a1a1;
  --faint: #707070;

  --accent: #3291ff;
  --accent-strong: #6db3ff;
  --accent-soft: rgba(50, 145, 255, 0.12);
  --on-accent: #0a0a0a;

  --divider: #1f1f1f;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.6);

  --success: #3fb27f;
  --success-bg: rgba(63, 178, 127, 0.08);
  --success-border: rgba(63, 178, 127, 0.3);
  --warn: #f5a524;
  --warn-bg: rgba(245, 165, 36, 0.08);
  --warn-border: rgba(245, 165, 36, 0.3);
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.08);
  --danger-border: rgba(248, 113, 113, 0.3);
  --info: #6db3ff;
  --info-bg: rgba(109, 179, 255, 0.08);
  --info-border: rgba(109, 179, 255, 0.3);

  --code-bg: #111111;
  --code-header: #111111;
  --code-ink: #ededed;
  --code-border: #262626;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  font-feature-settings: "ss01" on, "cv11" on;
  color: var(--ink-soft);
  background: var(--bg);
  transition: background-color var(--t-base) var(--ease-io), color var(--t-base) var(--ease-io);
}

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

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

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  color: var(--accent-strong);
}

code,
kbd {
  font-family: var(--font-mono);
}

/* ——— Top bar ——— */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  height: var(--topbar-h);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 0 1.5rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--ink);
  flex-shrink: 0;
}
.brand:hover {
  color: var(--ink);
}

.brand-mark {
  width: 26px;
  height: 26px;
  display: grid;
  place-items: center;
  color: var(--ink);
}
.brand-mark svg {
  display: block;
  width: 26px;
  height: 26px;
}

.brand-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand-text span {
  color: var(--muted);
}

.search-wrap {
  flex: 1;
  max-width: 380px;
  position: relative;
  margin-left: 0.5rem;
}

.search-wrap input {
  width: 100%;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0 4rem 0 2.2rem;
  background: var(--bg-sunken);
  color: var(--ink);
  font: inherit;
  font-size: 0.875rem;
  outline: none;
  transition: border-color var(--t-fast) var(--ease-io), background var(--t-fast) var(--ease-io);
}
.search-wrap input::placeholder {
  color: var(--faint);
}
.search-wrap input:hover {
  border-color: var(--border-strong);
}
.search-wrap input:focus {
  background: var(--bg);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}
.search-wrap::before {
  content: "⌘K";
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  font-family: var(--font-mono);
  color: var(--faint);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1px 6px;
  pointer-events: none;
}
.search-icon {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--faint);
  pointer-events: none;
}

.topbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease-io), color var(--t-fast) var(--ease-io),
    background var(--t-fast) var(--ease-io);
}
.theme-toggle:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--ink);
}
.theme-toggle .icon-sun,
html[data-theme="dark"] .theme-toggle .icon-moon {
  display: none;
}
html[data-theme="dark"] .theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: block;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  height: 34px;
  padding: 0 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-strong);
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease-io), background var(--t-fast) var(--ease-io),
    color var(--t-fast) var(--ease-io);
}
.btn:hover {
  color: var(--ink);
  background: var(--bg-hover);
  border-color: var(--faint);
}
.btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--bg);
}
.btn-primary:hover {
  background: var(--ink-soft);
  border-color: var(--ink-soft);
  color: var(--bg);
}

.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
}

/* ——— Layout ——— */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  min-height: calc(100vh - var(--topbar-h));
}

.sidebar {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow: auto;
  padding: 1.5rem 1rem 3rem 1.5rem;
  border-right: 1px solid var(--border);
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.sidebar::-webkit-scrollbar,
.toc::-webkit-scrollbar,
.code-block pre::-webkit-scrollbar,
.table-wrap::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
.sidebar::-webkit-scrollbar-thumb,
.toc::-webkit-scrollbar-thumb,
.code-block pre::-webkit-scrollbar-thumb,
.table-wrap::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 999px;
}

.nav-group {
  margin-bottom: 1.5rem;
}
.nav-group h3 {
  margin: 0 0 0.35rem 0.5rem;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.nav-group a {
  position: relative;
  display: block;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-md);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  line-height: 1.5;
  transition: background var(--t-fast) var(--ease-io), color var(--t-fast) var(--ease-io);
}
.nav-group a:hover {
  background: var(--bg-hover);
  color: var(--ink);
}
.nav-group a.active {
  color: var(--ink);
  font-weight: 500;
  background: var(--bg-hover);
}
.nav-group a.active::before {
  content: "";
  position: absolute;
  left: -1rem;
  top: 22%;
  bottom: 22%;
  width: 2px;
  background: var(--ink);
}

.content {
  min-width: 0;
  padding: 2.5rem 3rem 6rem;
}

.prose {
  max-width: var(--max-prose);
  margin: 0 auto;
}

.prose.page-enter {
  animation: page-enter 240ms var(--ease-out) both;
}

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

.toc {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  overflow: auto;
  padding: 2rem 1.5rem 2rem 1rem;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}
.toc h3 {
  margin: 0 0 0.6rem 0.75rem;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--ink);
}
.toc a {
  display: block;
  padding: 0.25rem 0.75rem;
  border-left: 1px solid var(--border);
  color: var(--muted);
  text-decoration: none;
  font-size: 0.8125rem;
  line-height: 1.5;
  transition: color 140ms var(--ease-io), border-color 140ms var(--ease-io);
}
.toc a:hover {
  color: var(--ink);
}
.toc a.active {
  color: var(--ink);
  font-weight: 500;
  border-left-color: var(--ink);
}
.toc a.depth-3 {
  padding-left: 1.5rem;
}

/* ——— Prose ——— */
.prose > :first-child {
  margin-top: 0;
}

.prose h1,
.prose h2,
.prose h3,
.prose h4 {
  font-family: var(--font-display);
  color: var(--ink);
  scroll-margin-top: calc(var(--topbar-h) + 20px);
}

.prose h1 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.15;
  margin: 0 0 1rem;
}
.prose h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.3;
  margin: 2.5rem 0 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.prose h2:first-of-type {
  border-top: 0;
  padding-top: 0;
}
.prose h3 {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 2rem 0 0.75rem;
}
.prose h4 {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 1.5rem 0 0.5rem;
}

.prose p {
  margin: 1rem 0;
  color: var(--ink-soft);
}
.prose strong {
  font-weight: 600;
  color: var(--ink);
}

.prose ul,
.prose ol {
  padding-left: 1.5rem;
  margin: 1rem 0;
}
.prose li {
  margin: 0.35rem 0;
}
.prose li::marker {
  color: var(--faint);
}

.prose a:not(.btn):not(.card) {
  color: var(--accent);
  text-decoration: underline;
  text-decoration-color: color-mix(in srgb, var(--accent) 35%, transparent);
  text-underline-offset: 3px;
  transition: text-decoration-color var(--t-fast) var(--ease-io),
    color var(--t-fast) var(--ease-io);
}
.prose a:not(.btn):not(.card):hover {
  color: var(--accent-strong);
  text-decoration-color: currentColor;
}

.prose blockquote {
  margin: 1.5rem 0;
  padding: 0.1rem 0 0.1rem 1rem;
  border-left: 2px solid var(--border-strong);
  color: var(--muted);
}
.prose blockquote p {
  margin: 0.4rem 0;
  color: var(--muted);
}

.prose hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.prose small,
.prose .meta {
  font-size: 0.8125rem;
  color: var(--muted);
}

.prose :not(pre) > code {
  background: var(--bg-hover);
  color: var(--ink);
  padding: 0.1em 0.35em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  font-size: 0.85em;
  font-weight: 400;
}

/* ——— Code blocks ——— */
.code-block {
  margin: 1.5rem 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
}

.code-block-header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  height: 38px;
  padding: 0 0.5rem 0 1rem;
  border-bottom: 1px solid var(--code-border);
}

.code-lang {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--faint);
}

.code-block pre {
  margin: 0;
  padding: 1rem 1.25rem;
  background: transparent;
  color: var(--code-ink);
  overflow: auto;
}
.code-block pre code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  line-height: 1.7;
  background: none;
  color: inherit;
  border: 0;
  padding: 0;
}

.copy-btn {
  margin-left: auto;
  height: 26px;
  padding: 0 0.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--muted);
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t-fast) var(--ease-io), color var(--t-fast) var(--ease-io),
    border-color var(--t-fast) var(--ease-io);
}
.copy-btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
  color: var(--ink);
}
.copy-btn.copied {
  border-color: var(--success-border);
  color: var(--success);
}

/* ——— Tables ——— */
.table-wrap {
  margin: 1.5rem 0;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.table-wrap table {
  margin: 0 !important;
  border: 0 !important;
  border-radius: 0 !important;
}

/* Many-column tables get to spill past the prose column and wrap their cells. */
.table-wrap.wide table {
  min-width: 760px;
  font-size: 0.8125rem;
}
.table-wrap.wide tbody td:first-child {
  white-space: normal;
}
@media (min-width: 1181px) {
  .table-wrap.wide {
    width: min(calc(100vw - var(--sidebar-w) - var(--toc-w) - 6rem), 1040px);
    margin-left: 50%;
    transform: translateX(-50%);
  }
}

.prose table {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.prose th,
.prose td {
  text-align: left;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.6;
}
.prose thead th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.75rem;
  letter-spacing: 0.01em;
  color: var(--muted);
  white-space: nowrap;
  background: var(--bg-sunken);
}
.prose tbody td:first-child {
  font-weight: 500;
  color: var(--ink);
  white-space: nowrap;
}
.prose tbody tr:last-child td {
  border-bottom: 0;
}
.prose tbody tr:hover {
  background: var(--bg-sunken);
}

/* ——— Callouts ——— */
.callout {
  display: flex;
  gap: 0.75rem;
  margin: 1.5rem 0;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg-sunken);
  font-size: 0.875rem;
}
.callout .icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-display);
  color: #fff;
  background: var(--muted);
}
.callout .body {
  min-width: 0;
  flex: 1;
}
.callout .callout-title {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
}
.callout .code-block {
  margin: 0.75rem 0 0.25rem;
}
.callout .body > :first-child {
  margin-top: 0;
}
.callout .body > :last-child {
  margin-bottom: 0;
}
.callout.info {
  border-color: var(--info-border);
  background: var(--info-bg);
}
.callout.info .icon {
  background: var(--info);
}
.callout.tip {
  border-color: var(--success-border);
  background: var(--success-bg);
}
.callout.tip .icon {
  background: var(--success);
}
.callout.warn {
  border-color: var(--warn-border);
  background: var(--warn-bg);
}
.callout.warn .icon {
  background: var(--warn);
}
.callout.danger {
  border-color: var(--danger-border);
  background: var(--danger-bg);
}
.callout.danger .icon {
  background: var(--danger);
}

/* ——— Hero ——— */
.hero {
  margin: 0 0 2.5rem;
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.25rem 0.6rem;
  margin-bottom: 1.25rem;
}
.hero.page-enter .eyebrow,
.hero.page-enter h1,
.hero.page-enter .lede,
.hero.page-enter .hero-actions {
  animation: page-enter 260ms var(--ease-out) both;
}
.hero.page-enter .eyebrow {
  animation-delay: 0ms;
}
.hero.page-enter h1 {
  animation-delay: 50ms;
}
.hero.page-enter .lede {
  animation-delay: 100ms;
}
.hero.page-enter .hero-actions {
  animation-delay: 150ms;
}
.hero h1 {
  margin: 0 0 0.75rem;
  border: 0;
  padding: 0;
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: -0.05em;
  line-height: 1.05;
  color: var(--ink);
}
.hero h1 span,
.hero h1 em {
  font-style: normal;
  color: var(--muted);
}
.hero .lede {
  font-size: 1.125rem;
  line-height: 1.6;
  color: var(--muted);
  max-width: 52ch;
  margin: 0 0 1.5rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

/* ——— Cards ——— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0.75rem;
  margin: 1.5rem 0;
}
.card {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 1rem 1.1rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--t-fast) var(--ease-io), background var(--t-fast) var(--ease-io);
}
.card:hover {
  background: var(--bg-sunken);
  border-color: var(--border-strong);
  color: inherit;
}
.card h3 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink);
  border: 0;
  padding: 0;
}
.card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8125rem;
  line-height: 1.55;
}

/* ——— Pager ——— */
.pager {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: 4rem;
}
.pager a {
  flex: 1;
  text-decoration: none;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink);
  transition: border-color var(--t-fast) var(--ease-io), background var(--t-fast) var(--ease-io);
}
.pager a:hover {
  background: var(--bg-sunken);
  border-color: var(--border-strong);
  color: var(--ink);
}
.pager .label {
  display: block;
  font-size: 0.75rem;
  font-family: var(--font-display);
  font-weight: 500;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.pager .title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.9375rem;
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.pager .title .arrow {
  color: var(--faint);
  transition: transform var(--t-fast) var(--ease-out), color var(--t-fast) var(--ease-io);
}
.pager a:hover .title .arrow {
  color: var(--ink);
}
.pager a:not(.next):hover .title .arrow {
  transform: translateX(-3px);
}
.pager a.next:hover .title .arrow {
  transform: translateX(3px);
}
.pager .next {
  text-align: right;
}

/* ——— Search modal ——— */
.search-modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 12vh 1rem 2rem;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease-out), visibility var(--t-base) var(--ease-out);
}
.search-modal.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}
.search-panel {
  width: min(600px, 100%);
  background: var(--bg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.98) translateY(-6px);
  opacity: 0;
  transition: transform var(--t-base) var(--ease-out), opacity var(--t-base) var(--ease-out);
}
.search-modal.open .search-panel {
  transform: scale(1) translateY(0);
  opacity: 1;
}
.search-panel input {
  width: 100%;
  border: 0;
  border-bottom: 1px solid var(--border);
  padding: 0.9rem 1.1rem;
  font: inherit;
  font-size: 0.9375rem;
  outline: none;
  background: transparent;
  color: var(--ink);
}
.search-results {
  max-height: 360px;
  overflow: auto;
  padding: 0.4rem;
}
.search-results a {
  display: block;
  padding: 0.6rem 0.75rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--ink);
  transition: background var(--t-fast) var(--ease-io);
}
.search-results a:hover,
.search-results a[aria-selected="true"] {
  background: var(--bg-hover);
}
.search-results .path {
  font-size: 0.6875rem;
  color: var(--faint);
  font-family: var(--font-mono);
}
.search-results .title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.875rem;
  color: var(--ink);
}
.search-empty {
  padding: 1.5rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.875rem;
}
.search-hints {
  display: flex;
  gap: 0.75rem;
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.75rem;
}
.search-hints kbd {
  display: inline-block;
  padding: 0.1rem 0.35rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--bg-sunken);
  font-size: 0.6875rem;
  color: var(--muted);
}

.loading,
.error-state {
  padding: 3rem 1rem;
  text-align: center;
  color: var(--muted);
}

/* ——— Syntax highlighting ——— */
/* Light: GitHub-light palette on the gray code panel */
.hljs-keyword,
.hljs-selector-tag,
.hljs-literal {
  color: #cf222e;
}
.hljs-string,
.hljs-attr {
  color: #0a3069;
}
.hljs-number,
.hljs-built_in {
  color: #0550ae;
}
.hljs-type {
  color: #953800;
}
.hljs-title,
.hljs-title.function_ {
  color: #8250df;
}
.hljs-comment {
  color: #6e7781;
  font-style: italic;
}
.hljs-meta {
  color: #953800;
}

/* Dark: GitHub-dark palette */
html[data-theme="dark"] .hljs-keyword,
html[data-theme="dark"] .hljs-selector-tag,
html[data-theme="dark"] .hljs-literal {
  color: #ff7b72;
}
html[data-theme="dark"] .hljs-string,
html[data-theme="dark"] .hljs-attr {
  color: #a5d6ff;
}
html[data-theme="dark"] .hljs-number,
html[data-theme="dark"] .hljs-built_in {
  color: #79c0ff;
}
html[data-theme="dark"] .hljs-type {
  color: #ffa657;
}
html[data-theme="dark"] .hljs-title,
html[data-theme="dark"] .hljs-title.function_ {
  color: #d2a8ff;
}
html[data-theme="dark"] .hljs-comment {
  color: #8b949e;
}
html[data-theme="dark"] .hljs-meta {
  color: #ffa657;
}

/* ——— Responsive ——— */
@media (max-width: 1180px) {
  .shell {
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  }
  .toc {
    display: none;
  }
}

@media (max-width: 860px) {
  .menu-toggle {
    display: grid;
    place-items: center;
  }
  .shell {
    grid-template-columns: 1fr;
  }
  .sidebar {
    position: fixed;
    inset: var(--topbar-h) auto 0 0;
    width: min(86vw, 300px);
    z-index: 50;
    transform: translateX(-105%);
    transition: transform var(--t-base) var(--ease-out);
    background: var(--bg);
    border-right: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    padding-left: 1rem;
  }
  body.sidebar-open .sidebar {
    transform: translateX(0);
  }
  .content {
    padding: 1.75rem 1.25rem 4rem;
  }
  .prose h1 {
    font-size: 2rem;
  }
  .hero h1 {
    font-size: 2.25rem;
  }
  .search-wrap {
    display: none;
  }
  .topbar-actions .btn-ghost {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}