/*
 * Ovellum default site theme — Tier 1 + Tier 2 token snapshot from
 * docs/internal/STYLES.md. Hand-ported; resync if the source moves.
 */

:root {
  /* Tier 1 — neutrals (zinc) */
  --color-zinc-50: oklch(98.5% 0.001 286.38);
  --color-zinc-100: oklch(96.7% 0.001 286.38);
  --color-zinc-200: oklch(92% 0.004 286.32);
  --color-zinc-300: oklch(87.1% 0.006 286.29);
  --color-zinc-500: oklch(55.2% 0.016 285.94);
  --color-zinc-700: oklch(37% 0.013 285.81);
  --color-zinc-800: oklch(27.4% 0.006 286.03);
  --color-zinc-900: oklch(21% 0.006 285.89);
  --color-zinc-950: oklch(14.1% 0.005 285.82);

  /* Tier 1 — accents */
  --color-blue-50: oklch(97% 0.014 254.6);
  --color-blue-200: oklch(88.2% 0.059 254.16);
  --color-blue-300: oklch(80.9% 0.105 251.81);
  --color-blue-400: oklch(70.7% 0.165 254.62);
  --color-blue-500: oklch(62.3% 0.214 259.81);
  --color-blue-600: oklch(54.6% 0.245 262.88);
  --color-blue-700: oklch(48.8% 0.243 264.38);
  --color-blue-900: oklch(37.9% 0.146 265.52);

  /* Tier 2 — semantic (default light) */
  --color-bg: var(--color-zinc-50);
  --color-bg-subtle: var(--color-zinc-100);
  --color-bg-muted: var(--color-zinc-200);
  --color-fg: var(--color-zinc-900);
  --color-fg-muted: var(--color-zinc-700);
  --color-fg-subtle: var(--color-zinc-500);
  --color-border: var(--color-zinc-200);
  --color-border-strong: var(--color-zinc-300);
  --color-border-focus: var(--color-blue-500);
  --color-accent: var(--color-blue-600);
  --color-accent-hover: var(--color-blue-700);
  --color-link: var(--color-blue-600);
  --color-link-hover: var(--color-blue-700);
  --color-code-bg: var(--color-zinc-100);

  /* Fonts */
  --font-sans:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto,
    'Helvetica Neue', Arial, 'Noto Sans', sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji';
  --font-mono:
    ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New',
    monospace;

  /* Type scale (Major Third → Perfect Fourth)
     Body deliberately runs 15→16px (tightened from the Utopia default
     of 16→19px) — closer to Stripe/Mintlify density. Other steps in
     the scale are unchanged. */
  --font-size-0: clamp(0.9375rem, 0.9158rem + 0.1087vw, 1rem);
  --font-size-1: clamp(1.25rem, 1.1341rem + 0.5793vw, 1.5831rem);
  --font-size-2: clamp(1.5625rem, 1.3721rem + 0.9522vw, 2.11rem);
  --font-size-3: clamp(1.9531rem, 1.6542rem + 1.4946vw, 2.8125rem);
  --font-size-4: clamp(2.4413rem, 1.9861rem + 2.276vw, 3.75rem);

  /* Space scale */
  --space-3xs: clamp(0.25rem, 0.2337rem + 0.0815vw, 0.2969rem);
  --space-2xs: clamp(0.5rem, 0.4674rem + 0.1631vw, 0.5938rem);
  --space-xs: clamp(0.75rem, 0.7011rem + 0.2445vw, 0.8906rem);
  --space-s: clamp(1rem, 0.9348rem + 0.3261vw, 1.1875rem);
  --space-m: clamp(1.5rem, 1.4022rem + 0.4892vw, 1.7813rem);
  --space-l: clamp(2rem, 1.8696rem + 0.6522vw, 2.375rem);
  --space-xl: clamp(3rem, 2.8043rem + 0.9783vw, 3.5625rem);

  /* Misc */
  --radius-md: 0.375rem;
  --radius-lg: 0.5rem;
  --shadow-sm: 0 1px 2px oklch(0% 0 0 / 0.08);
  --shadow-md: 0 4px 6px oklch(0% 0 0 / 0.08), 0 2px 4px oklch(0% 0 0 / 0.08);

  --leading-normal: 1.55;
  --leading-tight: 1.2;
  --leading-mono: 1.55;

  /* Layout widths */
  --sidebar-w: 240px;
  --toc-w: 200px;
  --content-max: 70ch;
}

/* Dark theme — auto + explicit */
@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] {
    --color-bg: var(--color-zinc-950);
    --color-bg-subtle: var(--color-zinc-900);
    --color-bg-muted: var(--color-zinc-800);
    --color-fg: var(--color-zinc-100);
    --color-fg-muted: var(--color-zinc-300);
    --color-fg-subtle: var(--color-zinc-500);
    --color-border: var(--color-zinc-800);
    --color-border-strong: var(--color-zinc-700);
    --color-border-focus: var(--color-blue-400);
    --color-accent: var(--color-blue-400);
    --color-accent-hover: var(--color-blue-300);
    --color-link: var(--color-blue-400);
    --color-link-hover: var(--color-blue-300);
    --color-code-bg: var(--color-zinc-900);
  }
}

:root[data-theme='dark'] {
  --color-bg: var(--color-zinc-950);
  --color-bg-subtle: var(--color-zinc-900);
  --color-bg-muted: var(--color-zinc-800);
  --color-fg: var(--color-zinc-100);
  --color-fg-muted: var(--color-zinc-300);
  --color-fg-subtle: var(--color-zinc-500);
  --color-border: var(--color-zinc-800);
  --color-border-strong: var(--color-zinc-700);
  --color-border-focus: var(--color-blue-400);
  --color-accent: var(--color-blue-400);
  --color-accent-hover: var(--color-blue-300);
  --color-link: var(--color-blue-400);
  --color-link-hover: var(--color-blue-300);
  --color-code-bg: var(--color-zinc-900);
}

/* Reset + base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-0);
  line-height: var(--leading-normal);
  color: var(--color-fg);
  background: var(--color-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}
a:hover {
  color: var(--color-link-hover);
}

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

/* Top bar */
.ov-topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-m);
  padding: var(--space-2xs) var(--space-m);
  max-inline-size: 1320px;
  margin-inline: auto;
  inline-size: 100%;
  border-block-end: 1px solid var(--color-border);
  background: color-mix(in oklch, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(180%) blur(8px);
}
.ov-brand {
  font-weight: 600;
  text-decoration: none;
  color: var(--color-fg);
  font-size: var(--font-size-1);
  letter-spacing: -0.01em;
}
.ov-topbar-nav {
  display: flex;
  gap: var(--space-xs);
  justify-content: flex-end;
  align-items: center;
  min-inline-size: 0;
}
.ov-topbar-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  text-decoration: none;
  color: var(--color-fg-muted);
  font-weight: 500;
  font-size: 0.94em;
  padding: var(--space-3xs) var(--space-xs);
  border-radius: var(--radius-md);
  transition: color 120ms ease, background-color 120ms ease;
}
.ov-topbar-link:hover {
  color: var(--color-fg);
  background: var(--color-bg-subtle);
}
.ov-topbar-icon {
  opacity: 0.7;
}
.ov-topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-2xs);
}

/* Search box (Pagefind UI as a floating dropdown)
   ===
   The Pagefind UI defaults render the results drawer inline below the input
   — that works for a full-page search but collapses the topbar when used in
   a header. We:
   1. Pin the input compactly inside the topbar.
   2. Float the drawer absolutely under it, with shadow/scroll, like a
      popover. Standard Mintlify-style behaviour.
   3. Decorate the input with a small `kbd` hint (added by script.js).
*/
.ov-search {
  position: relative;
  inline-size: 100%;
  min-inline-size: 220px;
  max-inline-size: 320px;
}
.ov-search .pagefind-ui {
  --pagefind-ui-scale: 0.6;
  --pagefind-ui-primary: var(--color-accent);
  --pagefind-ui-text: var(--color-fg);
  --pagefind-ui-background: var(--color-bg);
  --pagefind-ui-border: var(--color-border-strong);
  --pagefind-ui-tag: var(--color-bg-muted);
  --pagefind-ui-border-width: 1px;
  --pagefind-ui-border-radius: var(--radius-md);
  --pagefind-ui-font: var(--font-sans);
}
.ov-search .pagefind-ui__search-input {
  font-weight: 500;
  color: var(--color-fg);
}
.ov-search .pagefind-ui__search-input::placeholder {
  color: var(--color-fg-muted);
  opacity: 0.7;
  font-weight: 500;
}
.ov-search .pagefind-ui__search-input:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: -1px;
}

/* The drawer floats as a popover anchored to the input. */
.ov-search .pagefind-ui__drawer {
  position: absolute;
  top: calc(100% + 6px);
  inset-inline-end: 0;
  inset-inline-start: auto;
  inline-size: min(420px, 90vw);
  max-block-size: min(70vh, 560px);
  overflow-y: auto;
  padding: var(--space-s) var(--space-m);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 48px -24px color-mix(in oklch, var(--color-fg) 24%, transparent);
  z-index: 50;
}
.ov-search .pagefind-ui__results-area {
  margin-block-start: 0;
}
.ov-search .pagefind-ui__message {
  font-size: var(--font-size-0);
  color: var(--color-fg-muted);
  padding-block: var(--space-2xs);
}
.ov-search .pagefind-ui__result {
  border-color: var(--color-border);
  padding-block: var(--space-s);
}
.ov-search .pagefind-ui__result-title {
  font-size: var(--font-size-0);
  font-weight: 600;
}
.ov-search .pagefind-ui__result-excerpt {
  font-size: 0.92em;
  color: var(--color-fg-muted);
  min-inline-size: 0;
}

/* Small platform-aware shortcut chip rendered by script.js after Pagefind mounts. */
.ov-search-kbd {
  position: absolute;
  top: 50%;
  inset-inline-end: 0.6em;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.15em;
  font-family: var(--font-mono);
  font-size: 0.72em;
  color: var(--color-fg-muted);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: 4px;
  padding: 1px 6px;
  pointer-events: none;
  user-select: none;
}
.ov-search:focus-within .ov-search-kbd {
  display: none;
}

@media (max-width: 720px) {
  .ov-search {
    display: none;
  }
}

.ov-theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  inline-size: 2.25rem;
  block-size: 2.25rem;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-fg-muted);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: color 120ms ease, background-color 120ms ease, border-color 120ms ease;
}
.ov-theme-toggle:hover {
  color: var(--color-fg);
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}
.ov-theme-icon {
  display: none;
  line-height: 0;
}
:root[data-theme='auto'] .ov-theme-icon-auto,
:root[data-theme='light'] .ov-theme-icon-light,
:root[data-theme='dark'] .ov-theme-icon-dark {
  display: inline-flex;
}

/* Mobile menu button — hidden on desktop, shown below the breakpoint. */
.ov-topbar-menu {
  display: none;
  align-items: center;
  justify-content: center;
  inline-size: 2.25rem;
  block-size: 2.25rem;
  padding: 0;
  border: 1px solid transparent;
  background: transparent;
  color: var(--color-fg-muted);
  border-radius: var(--radius-md);
  cursor: pointer;
}
.ov-topbar-menu:hover {
  color: var(--color-fg);
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}
.ov-topbar-menu-open {
  display: inline-flex;
  line-height: 0;
}
.ov-topbar-menu-close {
  display: none;
  line-height: 0;
}
[data-ov-menu-toggle][aria-expanded='true'] .ov-topbar-menu-open {
  display: none;
}
[data-ov-menu-toggle][aria-expanded='true'] .ov-topbar-menu-close {
  display: inline-flex;
}

/* Mobile nav sheet — hidden on desktop, slides down on mobile when open. */
.ov-mobile-nav {
  display: none;
  position: fixed;
  top: 3.25rem;
  inset-inline: 0;
  z-index: 9;
  flex-direction: column;
  padding: var(--space-s) var(--space-m) var(--space-m);
  gap: var(--space-3xs);
  background: var(--color-bg);
  border-block-end: 1px solid var(--color-border);
  box-shadow: 0 24px 48px -24px color-mix(in oklch, var(--color-fg) 12%, transparent);
}
.ov-mobile-nav.is-open {
  display: flex;
}
.ov-mobile-nav .ov-topbar-link {
  padding: var(--space-xs) var(--space-s);
  font-size: 1.05em;
}
body.ov-menu-open {
  overflow: hidden;
}

@media (max-width: 720px) {
  .ov-topbar-nav {
    display: none;
  }
  .ov-topbar-menu {
    display: inline-flex;
  }
}

/* Layout */
.ov-layout {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr) var(--toc-w);
  gap: var(--space-l);
  max-inline-size: 1320px;
  margin-inline: auto;
  padding: var(--space-m);
}

/* Sidebar */
.ov-sidebar {
  position: sticky;
  top: calc(2rem + var(--space-s) * 2);
  align-self: start;
  block-size: calc(100vh - 4rem);
  overflow-y: auto;
  padding-inline-end: var(--space-s);
  border-inline-end: 1px solid var(--color-border);
}
.ov-sidebar-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ov-sidebar-nav > ul > li {
  margin-block-end: var(--space-2xs);
}
.ov-nav-link {
  display: block;
  padding: var(--space-3xs) var(--space-2xs);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-fg-muted);
  font-size: 0.95em;
}
.ov-nav-link:hover {
  background: var(--color-bg-subtle);
  color: var(--color-fg);
}
.ov-nav-link.is-active {
  background: var(--color-accent);
  color: var(--color-bg);
}
.ov-nav-group {
  display: block;
  padding: var(--space-2xs) var(--space-2xs);
  color: var(--color-fg-subtle);
  text-transform: uppercase;
  letter-spacing: 0.025em;
  font-size: 0.78em;
  font-weight: 600;
}
.ov-nav-children {
  margin-inline-start: var(--space-s);
  border-inline-start: 1px solid var(--color-border);
  padding-inline-start: var(--space-2xs);
}

/* Content */
.ov-content {
  min-inline-size: 0;
}
.ov-prose {
  max-inline-size: var(--content-max);
}
.ov-prose h1 {
  font-size: var(--font-size-4);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  margin-block: 0 var(--space-m);
}
.ov-prose h2 {
  font-size: var(--font-size-3);
  line-height: var(--leading-tight);
  letter-spacing: -0.025em;
  margin-block: var(--space-l) var(--space-s);
  padding-block-start: var(--space-s);
  border-block-start: 1px solid var(--color-border);
}
.ov-prose h3 {
  font-size: var(--font-size-2);
  line-height: 1.25;
  margin-block: var(--space-m) var(--space-s);
}
.ov-prose h4 {
  font-size: var(--font-size-1);
  margin-block: var(--space-m) var(--space-s);
}
.ov-prose p,
.ov-prose ul,
.ov-prose ol,
.ov-prose pre,
.ov-prose blockquote {
  margin-block: 0 var(--space-s);
}
.ov-prose blockquote {
  margin-inline: 0;
  padding-inline-start: var(--space-s);
  border-inline-start: 3px solid var(--color-border-strong);
  color: var(--color-fg-muted);
}
.ov-prose ul,
.ov-prose ol {
  padding-inline-start: var(--space-m);
}
.ov-prose code:not(pre code) {
  font-family: var(--font-mono);
  background: var(--color-code-bg);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  font-size: 0.92em;
}
.ov-prose img {
  max-inline-size: 100%;
  height: auto;
  border-radius: var(--radius-md);
}
.ov-prose table {
  border-collapse: collapse;
  inline-size: 100%;
  margin-block: 0 var(--space-s);
  font-size: 0.95em;
}
.ov-prose th,
.ov-prose td {
  padding: var(--space-2xs) var(--space-s);
  border: 1px solid var(--color-border);
  text-align: start;
}
.ov-prose th {
  background: var(--color-bg-subtle);
  font-weight: 600;
}

/* Heading anchors
   ===
   Anchor link is appended after the heading text (`behavior: 'append'`
   in the markdown pipeline), so headings stay flush-left with the
   surrounding prose. The `#` only fades in on hover or keyboard focus —
   it never reserves layout space because `margin-inline-start` is set
   on the inline element when visible, not as a default. */
.heading-anchor {
  margin-inline-start: 0.4em;
  color: var(--color-fg-subtle);
  text-decoration: none;
  opacity: 0;
  font-weight: 400;
  transition: opacity 120ms ease, color 120ms ease;
}
.ov-prose :is(h1, h2, h3, h4):hover .heading-anchor,
.heading-anchor:focus-visible {
  opacity: 1;
}
.heading-anchor:hover {
  color: var(--color-accent);
}

/* Code blocks (shiki dual-theme) */
.ov-prose pre {
  position: relative;
  padding: var(--space-s);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.92em;
  line-height: var(--leading-mono);
}
.ov-prose pre.shiki {
  background: var(--shiki-light-bg);
  color: var(--shiki-light);
}
.ov-prose pre.shiki span {
  color: var(--shiki-light);
}
@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] .ov-prose pre.shiki {
    background: var(--shiki-dark-bg);
    color: var(--shiki-dark);
  }
  :root[data-theme='auto'] .ov-prose pre.shiki span {
    color: var(--shiki-dark);
  }
}
:root[data-theme='dark'] .ov-prose pre.shiki {
  background: var(--shiki-dark-bg);
  color: var(--shiki-dark);
}
:root[data-theme='dark'] .ov-prose pre.shiki span {
  color: var(--shiki-dark);
}

/* Copy button (injected by script.js) */
.ov-copy-btn {
  position: absolute;
  top: var(--space-2xs);
  right: var(--space-2xs);
  padding: var(--space-3xs) var(--space-2xs);
  font-size: 0.78em;
  font-family: var(--font-sans);
  background: var(--color-bg-subtle);
  color: var(--color-fg-muted);
  border: 1px solid var(--color-border-strong);
  border-radius: 4px;
  cursor: pointer;
  opacity: 0;
  transition: opacity 120ms ease;
}
.ov-prose pre:hover .ov-copy-btn,
.ov-copy-btn:focus-visible {
  opacity: 1;
}
/* Page meta line (reading time + last-modified) above the article */
.ov-page-meta {
  margin: 0 0 var(--space-s);
  font-size: 0.88em;
  color: var(--color-fg-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.25em;
  align-items: baseline;
}
.ov-page-meta-sep {
  opacity: 0.6;
}

/* Edit-this-page link */
.ov-edit-page {
  margin-block: var(--space-l) 0;
  font-size: 0.92em;
  color: var(--color-fg-muted);
}
.ov-edit-link {
  color: var(--color-fg-muted);
  text-decoration: none;
  border-bottom: 1px dashed var(--color-border-strong);
  padding-bottom: 1px;
}
.ov-edit-link:hover {
  color: var(--color-fg);
  border-bottom-color: var(--color-fg-subtle);
}

/* Prev / next page navigation */
.ov-prevnext {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-m);
  margin-block: var(--space-xl) var(--space-m);
  padding-block-start: var(--space-m);
  border-block-start: 1px solid var(--color-border);
}
.ov-prevnext-link {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xs);
  padding: var(--space-s) var(--space-m);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  text-decoration: none;
  color: var(--color-fg);
  transition: border-color 120ms ease;
}
.ov-prevnext-link:hover {
  border-color: var(--color-fg-subtle);
  color: var(--color-fg);
}
.ov-prevnext-next {
  text-align: end;
  align-items: flex-end;
}
.ov-prevnext-label {
  font-size: 0.78em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-subtle);
  font-weight: 600;
}
.ov-prevnext-title {
  font-weight: 500;
}
.ov-prevnext-spacer {
  display: block;
}
@media (max-width: 720px) {
  .ov-prevnext {
    grid-template-columns: 1fr;
  }
  .ov-prevnext-next {
    text-align: start;
    align-items: flex-start;
  }
}

.ov-copy-btn.is-copied {
  color: var(--color-accent);
}

/* Right ToC */
.ov-toc {
  position: sticky;
  top: calc(2rem + var(--space-s) * 2);
  align-self: start;
  block-size: calc(100vh - 4rem);
  overflow-y: auto;
  font-size: 0.9em;
}
.ov-toc-title {
  font-size: 0.78em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-fg-subtle);
  margin-block: 0 var(--space-2xs);
  font-weight: 600;
}
.ov-toc ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ov-toc li {
  margin-block-end: var(--space-3xs);
}
.ov-toc li a {
  color: var(--color-fg-muted);
  text-decoration: none;
}
.ov-toc li a:hover {
  color: var(--color-fg);
}
.ov-toc-h3 {
  padding-inline-start: var(--space-s);
}

/* Footer */
.ov-footer {
  max-inline-size: 1320px;
  margin: var(--space-l) auto 0;
  padding: var(--space-s) var(--space-m);
  border-block-start: 1px solid var(--color-border);
  color: var(--color-fg-subtle);
  font-size: 0.9em;
  text-align: center;
}
.ov-footer-sep {
  margin-inline: var(--space-2xs);
}

/* Narrow viewports: drop the right ToC, then collapse the sidebar */
@media (max-width: 1100px) {
  .ov-layout {
    grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  }
  .ov-toc {
    display: none;
  }
}
@media (max-width: 720px) {
  .ov-layout {
    grid-template-columns: minmax(0, 1fr);
    padding-inline: var(--space-s);
  }
  .ov-sidebar {
    position: static;
    block-size: auto;
    border-inline-end: 0;
    border-block-end: 1px solid var(--color-border);
    padding: 0 0 var(--space-s);
  }
}

::selection {
  background: var(--color-blue-200);
  color: var(--color-blue-900);
}

/* ====================================================================== */
/* 404                                                                     */
/* ====================================================================== */

/* On the not-found page, drop the sidebar and ToC, centre the article. */
body.ov-body-404 .ov-layout {
  grid-template-columns: minmax(0, 1fr);
  max-inline-size: 60ch;
  padding-block-start: var(--space-2xl);
  text-align: center;
}
body.ov-body-404 .ov-sidebar,
body.ov-body-404 .ov-toc,
body.ov-body-404 .ov-prevnext,
body.ov-body-404 .ov-breadcrumbs,
body.ov-body-404 .ov-edit-page {
  display: none;
}
body.ov-body-404 .ov-prose h1 {
  font-size: var(--font-size-4);
  letter-spacing: -0.03em;
}

/* ====================================================================== */
/* Print                                                                   */
/* ====================================================================== */

@media print {
  :root {
    --color-bg: #ffffff;
    --color-fg: #000000;
  }
  .ov-topbar,
  .ov-sidebar,
  .ov-toc,
  .ov-prevnext,
  .ov-edit-page,
  .ov-search,
  .ov-theme-toggle,
  .heading-anchor,
  .ov-copy-btn {
    display: none !important;
  }
  .ov-layout {
    display: block;
    max-inline-size: none;
    padding: 0;
  }
  .ov-content {
    max-inline-size: none;
  }
  .ov-prose {
    max-inline-size: none;
  }
  .ov-prose a {
    color: inherit;
    text-decoration: underline;
  }
  /* Print external link URLs inline after the anchor text so paper readers
     still have the destination. Internal links are noisier than helpful
     because the slug doesn't convey anything; skip those. */
  .ov-prose a[href^='http']::after {
    content: ' (' attr(href) ')';
    font-size: 0.85em;
    color: #555;
  }
  .ov-prose pre {
    page-break-inside: avoid;
    border: 1px solid #ccc;
    background: #f6f6f6;
    color: #000;
  }
  .ov-prose h1,
  .ov-prose h2,
  .ov-prose h3 {
    page-break-after: avoid;
  }
  .ov-footer {
    border-block-start: 1px solid #ccc;
    color: #555;
  }
}

/* ====================================================================== */
/* Landing page                                                            */
/* ====================================================================== */

body.ov-body-landing {
  /* Landing pages span the full viewport — no sidebar grid. */
}

.ov-landing {
  max-inline-size: 1100px;
  margin-inline: auto;
  padding: 0 var(--space-m) var(--space-l);
}

/* Hero
   ===
   Two stacked background layers behind the centred prose:
     ::before  dotted noise pattern (faint, neutral, theme-aware)
     ::after   radial spotlight gradient (accent-tinted, low alpha)
   Both use `pointer-events: none` and live above body bg but below content.
   The dotted pattern is a data-URL SVG so there's no extra HTTP request and
   no images to ship. */
.ov-hero {
  position: relative;
  isolation: isolate;
  text-align: center;
  padding-block: clamp(var(--space-2xl), 12vw, var(--space-3xl))
                 clamp(var(--space-xl), 8vw, var(--space-2xl));
  margin-inline: calc(-1 * var(--space-m));
  overflow: hidden;
}
.ov-hero::before,
.ov-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}
.ov-hero::before {
  /* 24×24 grid of 1px dots in fg-subtle (currentColor would require
     `color`, but we'd rather not inherit). Mask to fade at the edges. */
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'><circle cx='12' cy='12' r='1' fill='%23000' fill-opacity='0.18'/></svg>");
  background-size: 24px 24px;
  background-repeat: repeat;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 80%);
          mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 80%);
  opacity: 0.9;
}
:root[data-theme='dark'] .ov-hero::before {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'><circle cx='12' cy='12' r='1' fill='%23fff' fill-opacity='0.18'/></svg>");
}
@media (prefers-color-scheme: dark) {
  :root[data-theme='auto'] .ov-hero::before {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'><circle cx='12' cy='12' r='1' fill='%23fff' fill-opacity='0.18'/></svg>");
  }
}
.ov-hero::after {
  /* Spotlight: a soft accent-tinted ellipse, low alpha, no hard edges. */
  background: radial-gradient(
    ellipse 50% 38% at 50% 35%,
    color-mix(in oklch, var(--color-accent) 22%, transparent) 0%,
    transparent 70%
  );
}
.ov-hero-title {
  position: relative;
  font-size: clamp(var(--font-size-4), 7vw, var(--font-size-5, 3.5rem));
  line-height: 1.02;
  letter-spacing: -0.035em;
  margin: 0 auto var(--space-s);
  max-inline-size: 16ch;
  font-weight: 700;
}
.ov-hero-subtitle {
  position: relative;
  font-size: var(--font-size-1);
  line-height: 1.5;
  color: var(--color-fg-muted);
  max-inline-size: 56ch;
  margin: 0 auto var(--space-l);
}
.ov-cta-row {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-s);
  margin-block-start: var(--space-m);
}
.ov-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  padding: var(--space-2xs) var(--space-m);
  border-radius: var(--radius-md);
  font-weight: 600;
  text-decoration: none;
  font-size: var(--font-size-0);
  transition:
    background-color 120ms ease,
    color 120ms ease,
    border-color 120ms ease;
}
.ov-cta--primary {
  background: var(--color-accent);
  color: var(--color-bg);
  border: 1px solid var(--color-accent);
}
.ov-cta--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-bg);
}
.ov-cta--secondary {
  background: transparent;
  color: var(--color-fg);
  border: 1px solid var(--color-border-strong);
}
.ov-cta--secondary:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-fg-subtle);
  color: var(--color-fg);
}

/* Feature grid */
.ov-feature-grid-wrap {
  margin-block: var(--space-xl) var(--space-l);
}
.ov-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-m);
}
.ov-feature-card {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-m);
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  transition: border-color 120ms ease;
}
.ov-feature-card:hover {
  border-color: var(--color-border-strong);
}
.ov-feature-icon {
  font-size: var(--font-size-2);
  line-height: 1;
}
.ov-feature-title {
  margin: 0;
  font-size: var(--font-size-1);
  line-height: 1.2;
  font-weight: 600;
}
.ov-feature-description {
  margin: 0;
  color: var(--color-fg-muted);
  font-size: var(--font-size-0);
  line-height: 1.5;
}

/* Pitch section (from _landing.md prose body) */
.ov-pitch {
  margin-block: var(--space-xl) var(--space-l);
  padding-block: var(--space-l);
  border-block-start: 1px solid var(--color-border);
}
.ov-pitch-inner {
  max-inline-size: 60ch;
  margin-inline: auto;
  font-size: var(--font-size-0);
  line-height: 1.65;
  color: var(--color-fg-muted);
}
.ov-pitch-inner h2 {
  font-size: var(--font-size-2);
  line-height: 1.2;
  margin-block: 0 var(--space-s);
  color: var(--color-fg);
}
.ov-pitch-inner h3 {
  font-size: var(--font-size-1);
  margin-block: var(--space-m) var(--space-s);
  color: var(--color-fg);
}
.ov-pitch-inner p,
.ov-pitch-inner ul,
.ov-pitch-inner ol {
  margin-block: 0 var(--space-s);
}
.ov-pitch-inner a {
  color: var(--color-link);
}

/* Trust strip */
.ov-trust {
  margin-block: var(--space-l) var(--space-xl);
  padding-block: var(--space-m);
  border-block-start: 1px solid var(--color-border);
  text-align: center;
}
.ov-trust-label {
  font-size: 0.78em;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-fg-subtle);
  margin-block: 0 var(--space-s);
  font-weight: 600;
}
.ov-trust-items {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-l);
}
.ov-trust-item {
  color: var(--color-fg-muted);
  text-decoration: none;
  font-weight: 500;
}
.ov-trust-item:hover {
  color: var(--color-fg);
}
.ov-trust-image {
  block-size: 1.75rem;
  inline-size: auto;
  opacity: 0.7;
  transition: opacity 120ms ease;
}
.ov-trust-item:hover .ov-trust-image {
  opacity: 1;
}

/* Landing-page responsive */
@media (max-width: 720px) {
  .ov-landing {
    padding: 0 var(--space-s) var(--space-l);
  }
  .ov-hero {
    margin-inline: calc(-1 * var(--space-s));
    padding-block: var(--space-xl) var(--space-l);
  }
  .ov-hero-title {
    letter-spacing: -0.03em;
  }
  .ov-feature-grid {
    grid-template-columns: 1fr;
  }
  .ov-trust-items {
    gap: var(--space-m);
  }
}