/* AgentLens Documentation — Clean, Modern Docs Theme */
:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;
  --bg: #0f172a;
  --bg-surface: #1e293b;
  --bg-code: #0d1117;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-bright: #f8fafc;
  --border: #334155;
  --accent-green: #34d399;
  --accent-amber: #fbbf24;
  --accent-red: #f87171;
  --accent-blue: #60a5fa;
  --sidebar-w: 260px;
  --header-h: 56px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  min-height: 100vh;
}

/* ── Header ────────────────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-h);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  z-index: 100;
  backdrop-filter: blur(12px);
}

.header-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-bright);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-logo span { color: var(--primary-light); }

.header-nav {
  margin-left: auto;
  display: flex;
  gap: 20px;
  align-items: center;
}

.header-nav a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.2s;
}

.header-nav a:hover { color: var(--text-bright); }

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.813rem;
  transition: all 0.2s;
}

.github-link:hover {
  border-color: var(--primary);
  color: var(--text-bright) !important;
}

/* ── Sidebar ───────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: var(--header-h);
  left: 0;
  bottom: 0;
  width: var(--sidebar-w);
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 20px 0;
  z-index: 50;
}

.sidebar-section { margin-bottom: 24px; }

.sidebar-section-title {
  font-size: 0.688rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 0 20px;
  margin-bottom: 8px;
}

.sidebar a {
  display: block;
  padding: 6px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}

.sidebar a:hover {
  color: var(--text);
  background: rgba(99, 102, 241, 0.08);
}

.sidebar a.active {
  color: var(--primary-light);
  border-left-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}

/* ── Main Content ──────────────────────────────────────────────── */
.main {
  margin-left: var(--sidebar-w);
  margin-top: var(--header-h);
  padding: 40px 48px 80px;
  max-width: 860px;
}

/* ── Typography ────────────────────────────────────────────────── */
h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-bright);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--text-bright);
  margin-top: 32px;
  margin-bottom: 12px;
}

h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-top: 24px;
  margin-bottom: 8px;
}

p { margin-bottom: 16px; }

.subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 32px;
}

a { color: var(--primary-light); }
a:hover { color: var(--accent-blue); }

/* ── Code ──────────────────────────────────────────────────────── */
code {
  font-family: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'Consolas', monospace;
  font-size: 0.85em;
  background: var(--bg-code);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  overflow-x: auto;
  margin-bottom: 24px;
  position: relative;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.85rem;
  line-height: 1.6;
}

.code-label {
  position: absolute;
  top: 8px;
  right: 12px;
  font-size: 0.688rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Tables ────────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 24px;
  font-size: 0.875rem;
}

th {
  text-align: left;
  padding: 10px 14px;
  background: var(--bg-surface);
  color: var(--text-bright);
  font-weight: 600;
  border-bottom: 2px solid var(--border);
}

td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}

tr:hover td { background: rgba(99, 102, 241, 0.04); }

/* ── Callouts ──────────────────────────────────────────────────── */
.callout {
  padding: 16px 20px;
  border-radius: 8px;
  margin-bottom: 24px;
  border-left: 4px solid;
  font-size: 0.875rem;
}

.callout-info {
  background: rgba(96, 165, 250, 0.08);
  border-color: var(--accent-blue);
}

.callout-warning {
  background: rgba(251, 191, 36, 0.08);
  border-color: var(--accent-amber);
}

.callout-tip {
  background: rgba(52, 211, 153, 0.08);
  border-color: var(--accent-green);
}

.callout-danger {
  background: rgba(248, 113, 113, 0.08);
  border-color: var(--accent-red);
}

.callout-title {
  font-weight: 600;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ── Cards ─────────────────────────────────────────────────────── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
  margin-bottom: 32px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  transition: border-color 0.2s;
}

.card:hover { border-color: var(--primary); }

.card-icon { font-size: 1.5rem; margin-bottom: 8px; }
.card h4 { margin-top: 0; }
.card p { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 0; }

/* ── Lists ─────────────────────────────────────────────────────── */
ul, ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

li { margin-bottom: 6px; }

/* ── Architecture Diagram ──────────────────────────────────────── */
.arch-diagram {
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  white-space: pre;
  overflow-x: auto;
  line-height: 1.4;
  color: var(--text-muted);
}

/* ── Badges ────────────────────────────────────────────────────── */
.badge-row {
  display: flex;
  gap: 8px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.badge {
  display: inline-flex;
  font-size: 0.75rem;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.badge-label {
  background: var(--bg-surface);
  padding: 2px 8px;
  color: var(--text-muted);
}

.badge-value {
  padding: 2px 8px;
  color: var(--text-bright);
  font-weight: 600;
}

.badge-value.green { background: #166534; }
.badge-value.blue { background: #1e40af; }
.badge-value.purple { background: #6b21a8; }

/* ── Footer ────────────────────────────────────────────────────── */
.footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.813rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

.footer a { color: var(--text-muted); }
.footer a:hover { color: var(--primary-light); }

/* ── Responsive ────────────────────────────────────────────────── */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  margin-right: 12px;
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); transition: transform 0.3s; }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; padding: 24px 20px 60px; }
  .menu-toggle { display: block; }
  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }
}