@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

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

:root {
  --amber:        #c8833e;
  --amber-bright: #f0a555;
  --teal:         #52d9c2;
  --text:         #1a1a1a;
  --text-2:       #4a4a4a;
  --text-3:       #888;
  --bg:           #ffffff;
  --bg-2:         #f6f6f4;
  --bg-3:         #efefec;
  --border:       #e4e4e0;
  --border-2:     #d0d0cb;
  --sidebar-w:    272px;
  --nav-h:        60px;
  --amber-dim:    rgba(200,131,62,0.1);
  --code-bg:      #1a1814;
  --code-text:    #d4cfc8;
  --code-amber:   #f0a555;
  --code-teal:    #52d9c2;
  --code-green:   #7ec88a;
  --code-dim:     #666;
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

/* ─── Top nav ──────────────────────────────── */
.doc-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 200;
  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  gap: 1.5rem;
}

.doc-nav-logo {
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--amber);
  text-decoration: none;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  flex-shrink: 0;
}

.doc-nav-links {
  display: flex;
  list-style: none;
  gap: 0.1rem;
}
.doc-nav-links a {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.84rem;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}
.doc-nav-links a:hover { color: var(--text); background: var(--bg-2); }

.doc-nav-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.doc-nav-right a {
  font-size: 0.83rem;
  color: var(--text-2);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: color 0.15s, border-color 0.15s;
}
.doc-nav-right a:hover { color: var(--text); border-color: var(--border-2); }

/* ─── Page shell ───────────────────────────── */
.doc-shell {
  display: flex;
  min-height: 100vh;
  padding-top: var(--nav-h);
}

/* ─── Sidebar ──────────────────────────────── */
.doc-sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  position: fixed;
  top: var(--nav-h);
  left: 0;
  bottom: 0;
  overflow-y: auto;
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  padding: 1.5rem 0;
}

.doc-sidebar::-webkit-scrollbar { width: 4px; }
.doc-sidebar::-webkit-scrollbar-thumb { background: var(--border-2); border-radius: 4px; }

.sidebar-section {
  padding: 0 0 1rem;
  margin-bottom: 0.25rem;
}

.sidebar-section-title {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
  padding: 0.5rem 1.25rem 0.35rem;
}

.sidebar-section ul {
  list-style: none;
}

.sidebar-section ul li a {
  display: block;
  padding: 0.3rem 1.25rem 0.3rem 1.5rem;
  font-size: 0.855rem;
  color: var(--text-2);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 0.12s, background 0.12s, border-color 0.12s;
  line-height: 1.45;
}
.sidebar-section ul li a:hover {
  color: var(--text);
  background: var(--bg-3);
}
.sidebar-section ul li a.active {
  color: var(--amber);
  border-left-color: var(--amber);
  background: var(--amber-dim);
  font-weight: 600;
}

.sidebar-section ul li ul li a {
  padding-left: 2.25rem;
  font-size: 0.82rem;
  color: var(--text-3);
}
.sidebar-section ul li ul li a.active {
  color: var(--amber);
}

.sidebar-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0.75rem 1.25rem;
}

/* ─── Main content ─────────────────────────── */
.doc-content {
  flex: 1;
  margin-left: var(--sidebar-w);
  padding: 3rem 4rem 6rem;
  max-width: 900px;
}

/* ─── Headings ─────────────────────────────── */
.doc-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border);
}

.doc-content h2 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  margin-top: 3rem;
  margin-bottom: 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}

.doc-content h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  scroll-margin-top: calc(var(--nav-h) + 1rem);
}

.doc-content h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-2);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

/* anchor links */
.anchor {
  margin-left: 0.5rem;
  color: var(--border-2);
  text-decoration: none;
  font-size: 0.85em;
  opacity: 0;
  transition: opacity 0.15s;
}
h2:hover .anchor, h3:hover .anchor { opacity: 1; }

/* ─── Prose ────────────────────────────────── */
.doc-content p {
  font-size: 0.95rem;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.doc-content ul, .doc-content ol {
  margin: 0.75rem 0 1rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.doc-content li {
  font-size: 0.93rem;
  color: var(--text-2);
  line-height: 1.7;
}

.doc-content a {
  color: var(--amber);
  text-decoration: none;
  border-bottom: 1px solid rgba(200,131,62,0.3);
  transition: border-color 0.15s;
}
.doc-content a:hover { border-bottom-color: var(--amber); }

/* ─── Inline code ──────────────────────────── */
.doc-content code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82em;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.15em 0.4em;
  color: #c0392b;
}

/* ─── Code blocks ──────────────────────────── */
.doc-content pre {
  background: var(--code-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 1.2rem 1.4rem;
  overflow-x: auto;
  margin: 1.2rem 0;
}
.doc-content pre code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  background: none;
  border: none;
  padding: 0;
  color: var(--code-text);
}
.doc-content pre code .sh { color: var(--code-teal); }
.doc-content pre code .ini-key { color: var(--code-amber); }
.doc-content pre code .ini-val { color: var(--code-teal); }
.doc-content pre code .comment { color: var(--code-dim); }
.doc-content pre .cmd { color: var(--code-amber); }
.doc-content pre .arg { color: var(--code-teal); }
.doc-content pre .cmt { color: var(--code-dim); font-style: italic; }
.doc-content pre .slash { color: var(--code-teal); font-weight: 500; }
.doc-content pre .out { color: var(--code-text); }

/* ─── Tables ───────────────────────────────── */
.doc-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
.doc-content th {
  background: var(--bg-3);
  font-weight: 700;
  color: var(--text);
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--border-2);
  font-size: 0.82rem;
  letter-spacing: 0.02em;
}
.doc-content td {
  padding: 0.65rem 1rem;
  color: var(--text-2);
  border-bottom: 1px solid var(--border);
  vertical-align: top;
  line-height: 1.55;
}
.doc-content tr:last-child td { border-bottom: none; }
.doc-content tr:nth-child(even) td { background: var(--bg-2); }
.doc-content td code { font-size: 0.8em; }

/* ─── Callout / note ───────────────────────── */
.callout {
  border-left: 3px solid var(--amber);
  background: var(--amber-dim);
  border-radius: 0 8px 8px 0;
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.7;
}
.callout strong { color: var(--text); }

/* ─── Footer breadcrumb nav ────────────────── */
.doc-footer-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
}
.doc-footer-nav a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  padding: 0.6rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}
.doc-footer-nav a:hover {
  color: var(--text);
  border-color: var(--border-2);
  background: var(--bg-2);
}
.doc-footer-nav .prev::before { content: '←  '; }
.doc-footer-nav .next::after  { content: '  →'; }

/* ─── Site footer ──────────────────────────── */
.doc-site-footer {
  margin-left: var(--sidebar-w);
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 1.5rem 4rem;
  font-size: 0.8rem;
  color: var(--text-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.doc-site-footer a { color: var(--text-3); text-decoration: none; }
.doc-site-footer a:hover { color: var(--text-2); }

/* ─── Dark theme ──────────────────────────── */
[data-theme="dark"] {
  --bg:       #0d0d0b;
  --bg-2:     #131311;
  --bg-3:     #171715;
  --border:   #1e1e1c;
  --border-2: #2a2a28;
  --text:     #dedad4;
  --text-2:   #8a8680;
  --text-3:   #4a4845;
  --code-bg:  #0a0a08;
  --code-text: #d0cbc2;
  --amber-dim: rgba(196,128,60,0.1);
}
[data-theme="dark"] .doc-content code {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.07);
  color: #c8803c;
}
[data-theme="dark"] .doc-content pre {
  border-color: rgba(255,255,255,0.06);
}
[data-theme="dark"] .doc-content a {
  border-bottom-color: rgba(196,128,60,0.3);
}

/* ─── Theme toggle ─────────────────────────── */
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-3);
  width: 30px;
  height: 30px;
  border-radius: 5px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s, border-color 0.15s;
  flex-shrink: 0;
  padding: 0;
}
.theme-toggle:hover { color: var(--text-2); border-color: var(--border-2); }
.theme-toggle svg { display: block; pointer-events: none; }

/* ─── Mobile ───────────────────────────────── */
@media (max-width: 900px) {
  .doc-sidebar { display: none; }
  .doc-content { margin-left: 0; padding: 2rem 1.5rem 4rem; }
  .doc-site-footer { margin-left: 0; padding: 1.25rem 1.5rem; }
}
@media (max-width: 640px) {
  .doc-nav-links { display: none; }
  .doc-content h1 { font-size: 1.5rem; }
}