/* Synodes Docs — Design System */
:root {
  --bg: #FFFFFF;
  --surface: #F7F5FB;
  --text: #14111D;
  --muted: #615B70;
  --border: #E7E3F0;
  --accent: #7624F4;
  --accent-hover: #5E14CE;
  --on-accent: #FFFFFF;
  --code-bg: #14111D;
  --code-text: #F6F4FA;
  --code-accent: #C8FF01;
  --radius-card: 12px;
  --radius-ctrl: 8px;
  --nav-height: 60px;
  --sidebar-width: 260px;
}

[data-theme="dark"] {
  --bg: #0B0B0F;
  --surface: #14141A;
  --text: #F6F4FA;
  --muted: #9B96A9;
  --border: #272432;
  --accent: #C8FF01;
  --accent-hover: #AFE000;
  --on-accent: #0B0B0F;
  --code-bg: #0B0B0F;
  --code-text: #F6F4FA;
  --code-accent: #C8FF01;
}

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

html { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; font-size: 16px; line-height: 1.6; color: var(--text); background: var(--bg); scroll-behavior: smooth; }

body { min-height: 100vh; display: flex; flex-direction: column; }

/* Top Nav */
.topnav { position: sticky; top: 0; z-index: 100; height: var(--nav-height); background: var(--bg); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 24px; gap: 24px; }
.topnav-logo { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 700; font-size: 1.1rem; color: var(--text); flex-shrink: 0; }
.topnav-logo svg { height: 28px; width: auto; }
.topnav-links { display: flex; gap: 6px; margin-left: auto; align-items: center; }
.topnav-links a { text-decoration: none; color: var(--muted); padding: 6px 14px; border-radius: var(--radius-ctrl); font-size: 0.875rem; font-weight: 500; transition: color .15s, background .15s; }
.topnav-links a:hover, .topnav-links a.active { color: var(--text); background: var(--surface); }
.topnav-links a.external::after { content: " ↗"; font-size: 0.7rem; }

/* Theme Toggle */
.theme-toggle { background: none; border: 1px solid var(--border); border-radius: var(--radius-ctrl); width: 36px; height: 36px; cursor: pointer; display: flex; align-items: center; justify-content: center; color: var(--muted); transition: color .15s, border-color .15s; flex-shrink: 0; }
.theme-toggle:hover { color: var(--text); border-color: var(--accent); }
.theme-toggle svg { width: 18px; height: 18px; }
.sun-icon { display: none; } .moon-icon { display: block; }
[data-theme="dark"] .sun-icon { display: block; } [data-theme="dark"] .moon-icon { display: none; }

/* Layout */
.layout { display: flex; flex: 1; }
.sidebar { width: var(--sidebar-width); flex-shrink: 0; border-right: 1px solid var(--border); padding: 20px 0; position: sticky; top: var(--nav-height); height: calc(100vh - var(--nav-height)); overflow-y: auto; background: var(--bg); }
.sidebar-search { padding: 0 20px 16px; }
.sidebar-search input { width: 100%; padding: 8px 12px; border: 1px solid var(--border); border-radius: var(--radius-ctrl); font-size: 0.8125rem; background: var(--surface); color: var(--text); outline: none; transition: border-color .15s; }
.sidebar-search input:focus { border-color: var(--accent); }
.sidebar-section { padding: 0 20px; margin-bottom: 6px; }
.sidebar-section-title { font-size: 0.6875rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); padding: 8px 0 6px; }
.sidebar-section a { display: block; padding: 6px 0; font-size: 0.875rem; color: var(--muted); text-decoration: none; transition: color .15s; }
.sidebar-section a:hover, .sidebar-section a.active { color: var(--text); }
.sidebar-section a.active { font-weight: 600; }

.content { flex: 1; min-width: 0; padding: 40px 48px 80px; max-width: 860px; }
.content h1 { font-size: 2rem; font-weight: 800; margin-bottom: 8px; letter-spacing: -0.02em; }
.content h2 { font-size: 1.4rem; font-weight: 700; margin: 36px 0 12px; letter-spacing: -0.01em; }
.content h3 { font-size: 1.1rem; font-weight: 600; margin: 24px 0 8px; }
.content p { margin-bottom: 14px; color: var(--text); }
.content p, .content li { line-height: 1.7; }
.content ul, .content ol { margin: 0 0 14px 20px; }
.content li { margin-bottom: 4px; }
.content a { color: var(--accent); text-decoration: none; font-weight: 500; }
.content a:hover { text-decoration: underline; }
.content code { font-family: "SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace; font-size: 0.85rem; background: var(--surface); padding: 2px 6px; border-radius: 4px; color: var(--text); }
.content pre { background: var(--code-bg); color: var(--code-text); padding: 20px 24px; border-radius: var(--radius-card); overflow-x: auto; margin: 16px 0 20px; font-size: 0.85rem; line-height: 1.55; }
.content pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.content pre .hl-accent { color: var(--code-accent); }
.content blockquote { border-left: 3px solid var(--accent); padding: 12px 20px; margin: 16px 0; background: var(--surface); border-radius: 0 var(--radius-ctrl) var(--radius-ctrl) 0; color: var(--muted); font-size: 0.9375rem; }
.content hr { border: none; border-top: 1px solid var(--border); margin: 32px 0; }
.content table { width: 100%; border-collapse: collapse; margin: 16px 0 20px; font-size: 0.9rem; }
.content th, .content td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--border); }
.content th { font-weight: 600; color: var(--muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.04em; background: var(--surface); }
.content tr:last-child td { border-bottom: none; }
.content img { max-width: 100%; border-radius: var(--radius-ctrl); }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; margin: 20px 0; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-card); padding: 20px; text-decoration: none; color: var(--text); transition: border-color .15s, box-shadow .15s; }
.card:hover { border-color: var(--accent); box-shadow: 0 4px 20px rgba(0,0,0,0.06); text-decoration: none; }
.card h3 { font-size: 1rem; margin: 0 0 6px; }
.card p { font-size: 0.85rem; color: var(--muted); margin: 0; }

/* Search highlight */
.sidebar-section a.filtered-out { display: none; }
.search-empty { display: none; font-size: 0.8rem; color: var(--muted); padding: 6px 0; text-align: center; }

/* Step numbers */
.step { display: inline-flex; align-items: center; justify-content: center; width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: var(--on-accent); font-size: 0.75rem; font-weight: 700; margin-right: 8px; flex-shrink: 0; }

/* Page nav (prev/next) */
.page-nav { display: flex; gap: 12px; margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--border); }
.page-nav a { flex: 1; padding: 14px 18px; border: 1px solid var(--border); border-radius: var(--radius-ctrl); text-decoration: none; color: var(--text); transition: border-color .15s; }
.page-nav a:hover { border-color: var(--accent); text-decoration: none; }
.page-nav .prev::before { content: "← "; color: var(--muted); }
.page-nav .next { text-align: right; }
.page-nav .next::after { content: " →"; color: var(--muted); }
.page-nav .next-only { margin-left: auto; }

/* Callouts */
.callout { padding: 16px 20px; border-radius: var(--radius-ctrl); margin: 16px 0; font-size: 0.9rem; }
.callout-info { background: #EDF0FF; border: 1px solid #B8C5FF; color: #1E2350; }
.callout-warn { background: #FFF8E5; border: 1px solid #F5D76E; color: #5A4200; }
.callout-tip { background: #E9FFE5; border: 1px solid #8FDF82; color: #1B4D13; }
[data-theme="dark"] .callout-info { background: #1A1F3A; border-color: #3A4599; color: #C5CCFF; }
[data-theme="dark"] .callout-warn { background: #2E2500; border-color: #8A6F1A; color: #F5D76E; }
[data-theme="dark"] .callout-tip { background: #0F2A0A; border-color: #3D7A34; color: #8FDF82; }

/* Pricing toggle */
.pricing-toggle { display: flex; gap: 0; margin: 20px 0; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-ctrl); overflow: hidden; width: fit-content; }
.pricing-toggle button { padding: 8px 20px; border: none; background: none; font-size: 0.85rem; font-weight: 600; cursor: pointer; color: var(--muted); transition: all .15s; }
.pricing-toggle button.active { background: var(--accent); color: var(--on-accent); }

/* FAQ */
.faq-item { margin-bottom: 4px; }
.faq-q { font-weight: 600; cursor: pointer; padding: 12px 0; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.faq-q::after { content: "+"; font-size: 1.2rem; color: var(--muted); transition: transform .2s; }
.faq-q.open::after { content: "−"; transform: rotate(180deg); }
.faq-a { padding: 12px 0 20px; color: var(--muted); display: none; }
.faq-a.open { display: block; }

/* Responsive */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .content { padding: 24px 20px 60px; }
  .topnav { padding: 0 16px; gap: 12px; }
  .topnav-links a { padding: 6px 8px; font-size: 0.8rem; }
}