/* ─── Arcis Docs Styles ─────────────────────────────── */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --bg: #e4e5e0;
  --bg-warm: #dadbd5;
  --bg-card: #f2f3f0;
  --bg-dark: #141413;
  --bg-code: #1e1e2e;
  --text: #141413;
  --text-secondary: #474a45;
  --text-muted: #747a72;
  --accent: #00996D;
  --accent-hover: #007a57;
  --accent-light: #68D970;
  --accent-glow: rgba(0, 153, 109, 0.15);
  --red: #F40C3F;
  --gold: #eda100;
  --border: #c8cac4;
  --border-soft: rgba(200, 202, 196, 0.5);
  --serif: 'EB Garamond', Georgia, 'Times New Roman', serif;
  --sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --sidebar-w: 280px;
  --nav-h: 4.25rem;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--accent-glow); color: var(--accent-hover); }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-hover); }

/* ─── Top Navigation (matches main site) ────────────── */
.docs-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: rgba(228, 229, 224, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 1000;
  transition: box-shadow 0.3s ease;
}
.docs-nav.scrolled { box-shadow: 0 1px 20px rgba(0,0,0,0.06); }

.docs-nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.docs-logo {
  font-family: var(--serif);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}
.docs-logo span { color: var(--accent-light); }

.docs-nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
}
.docs-nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.docs-nav-links a:hover { color: var(--text); }
.docs-nav-links a.active { color: var(--accent); }

.docs-nav-cta { display: flex; align-items: center; gap: 0.75rem; }

.btn-star {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  transition: all 0.2s;
  cursor: pointer;
}
.btn-star:hover { border-color: var(--text-muted); color: var(--text); box-shadow: 0 2px 8px rgba(0,0,0,0.06); }
.btn-star svg { width: 16px; height: 16px; }
.btn-star .star-count {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent-light);
  font-weight: 600;
}

.btn-primary-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
}
.btn-primary-nav:hover { background: var(--accent-hover); color: #fff; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0, 153, 109, 0.25); }

/* ─── Layout ──────────────────────────────────────── */
.docs-layout {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  gap: 3rem;
  padding: calc(var(--nav-h) + 2rem) 2rem 2rem;
}

/* ─── Sidebar ─────────────────────────────────────── */
.docs-sidebar {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
  height: calc(100vh - var(--nav-h) - 4rem);
  overflow-y: auto;
  padding-right: 1rem;
}
.docs-sidebar h3 {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
  margin-top: 1.75rem;
}
.docs-sidebar h3:first-child { margin-top: 0; }
.docs-sidebar ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}
.docs-sidebar a {
  display: block;
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  transition: all 0.15s;
}
.docs-sidebar a:hover {
  background: var(--bg-card);
  color: var(--text);
}
.docs-sidebar a.active {
  background: var(--accent-glow);
  color: var(--accent-hover);
  font-weight: 500;
}

/* ─── Main Content ────────────────────────────────── */
.docs-content {
  max-width: 780px;
  min-width: 0;
  padding-bottom: 4rem;
}
.docs-breadcrumb {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.docs-breadcrumb a { color: var(--text-muted); }
.docs-breadcrumb a:hover { color: var(--accent); }
.docs-content h1 {
  font-family: var(--serif);
  font-size: clamp(2.25rem, 4vw, 3.25rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.docs-content h2 {
  font-family: var(--serif);
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.25;
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}
.docs-content h3 {
  font-family: var(--serif);
  font-size: 1.3rem;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}
.docs-content p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 1.25rem;
  line-height: 1.7;
}
.docs-content p.lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}
.docs-content ul, .docs-content ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}
.docs-content li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}
.docs-content strong { color: var(--text); font-weight: 600; }
.docs-content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 3rem 0;
}

/* ─── Inline Code ─────────────────────────────────── */
.docs-content code {
  font-family: var(--mono);
  font-size: 0.85em;
  background: rgba(0,0,0,0.05);
  padding: 0.15em 0.4em;
  border-radius: 4px;
  color: var(--text);
}

/* ─── Code Blocks ─────────────────────────────────── */
.docs-content pre {
  background: var(--bg-code);
  color: #cdd6f4;
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  overflow-x: auto;
  margin: 1.5rem 0;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.55;
  border: 1px solid rgba(0,0,0,0.1);
}
.docs-content pre code {
  background: none;
  padding: 0;
  font-size: inherit;
  color: inherit;
}

/* Syntax highlighting hints */
.docs-content pre .k { color: #cba6f7; }   /* keyword */
.docs-content pre .s { color: #a6e3a1; }   /* string */
.docs-content pre .c { color: #7f849c; font-style: italic; } /* comment */
.docs-content pre .f { color: #89dceb; }   /* function */
.docs-content pre .p { color: #cdd6f4; }   /* punctuation */
.docs-content pre .n { color: #f9e2af; }   /* number */

/* ─── Callouts ────────────────────────────────────── */
.callout {
  padding: 1rem 1.25rem;
  border-radius: 8px;
  margin: 1.5rem 0;
  border-left: 3px solid var(--accent);
  background: var(--accent-glow);
}
.callout.note {
  border-left-color: var(--accent);
  background: rgba(0, 153, 109, 0.08);
}
.callout.warning {
  border-left-color: var(--gold);
  background: rgba(237, 161, 0, 0.08);
}
.callout.danger {
  border-left-color: var(--red);
  background: rgba(244, 12, 63, 0.06);
}
.callout p { margin: 0; color: var(--text); font-size: 0.95rem; }
.callout p + p { margin-top: 0.5rem; }
.callout strong { color: var(--text); }

/* ─── Tables ──────────────────────────────────────── */
.docs-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  background: var(--bg-card);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.docs-content th {
  background: var(--bg-warm);
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}
.docs-content td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-secondary);
}
.docs-content tr:last-child td { border-bottom: none; }
.docs-content td code { font-size: 0.8rem; }

/* ─── Cards ───────────────────────────────────────── */
.doc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin: 2rem 0;
}
.doc-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all 0.2s;
  display: block;
}
.doc-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 153, 109, 0.1);
}
.doc-card h3 {
  font-family: var(--serif);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 0.5rem 0;
  color: var(--text);
}
.doc-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.5;
}

/* ─── Tabs ────────────────────────────────────────── */
.tabs {
  margin: 1.5rem 0;
}
.tab-buttons {
  display: flex;
  gap: 0.25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1rem;
}
.tab-btn {
  padding: 0.6rem 1rem;
  background: none;
  border: none;
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.2s;
}
.tab-btn:hover { color: var(--text); }
.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Framework picker variant: 12 buttons that wrap on narrow viewports.
   Each button reads as a chip rather than a tab, since multi-row tabs
   with single-line bottom borders look broken. */
.framework-picker .tab-buttons {
  border-bottom: none;
  gap: 0.4rem;
}
.framework-picker .tab-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.85rem;
  margin-bottom: 0;
}
.framework-picker .tab-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ─── Pagination ──────────────────────────────────── */
.docs-pagination {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.docs-pagination a {
  flex: 1;
  padding: 1rem 1.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  transition: all 0.2s;
  color: var(--text);
}
.docs-pagination a:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.docs-pagination a.prev { text-align: left; }
.docs-pagination a.next { text-align: right; }
.docs-pagination .nav-label {
  display: block;
  font-size: 0.75rem;
  font-family: var(--mono);
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  margin-bottom: 0.25rem;
}
.docs-pagination .nav-title {
  font-weight: 600;
  color: var(--text);
}

/* ─── Footer — shared across every page on the site so the bottom of
   the doc, changelog, and landing pages all read as the same surface.
   Mirrors index.html's footer; values stay in sync via the variables
   already defined at the top of this file (--bg-dark, --accent-light,
   --serif, --border-dark). */
.footer {
  background: var(--bg-dark);
  color: rgba(255,255,255,0.5);
  padding: 3.5rem 0 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 4rem;
}
.footer .container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 2rem;
}
.footer-brand { max-width: 300px; }
.footer-logo {
  font-family: var(--serif, 'EB Garamond', serif);
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 0.75rem;
}
.footer-logo span { color: var(--accent-light); }
.footer-tagline { font-size: 0.85rem; line-height: 1.55; color: rgba(255,255,255,0.5); }
.footer-badges {
  display: flex;
  gap: 0.75rem;
  margin-top: 1.25rem;
}
.footer-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255,255,255,0.6);
}
.footer-columns { display: flex; gap: 4rem; flex-wrap: wrap; }
.footer-col h4 {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.7);
  margin-bottom: 0.75rem;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a { font-size: 0.85rem; color: rgba(255,255,255,0.5); text-decoration: none; transition: color 0.2s; }
.footer-col a:hover { color: rgba(255,255,255,0.9); }
.footer-bottom {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  transition: all 0.2s;
}
.footer-social a:hover { background: rgba(255,255,255,0.12); }
.footer-social svg { width: 16px; height: 16px; fill: rgba(255,255,255,0.6); }

/* Legacy slim footer kept as a fallback for pages that haven't been
   migrated yet. New pages should use .footer above. */
.docs-footer {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.docs-footer a { color: var(--text-muted); }
.docs-footer a:hover { color: var(--accent); }

/* ─── Mobile ──────────────────────────────────────── */
.sidebar-toggle {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  cursor: pointer;
  color: var(--text);
}

@media (max-width: 900px) {
  .docs-layout {
    grid-template-columns: 1fr;
    gap: 1rem;
    padding: 1.5rem 1rem;
  }
  .docs-sidebar {
    position: static;
    height: auto;
    max-height: none;
    padding: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    display: none;
  }
  .docs-sidebar.mobile-open { display: block; }
  .sidebar-toggle { display: inline-flex; align-items: center; gap: 0.5rem; margin-bottom: 1rem; }
  .docs-nav-links { display: none; }
  .docs-pagination { flex-direction: column; }
}