:root {
  --bg:      #0b0f14;
  --surface: #11161d;
  --panel:   #161c25;
  --border:  #232b36;
  --text:    #dde6f0;
  --sub:     #8a9bb0;
  --accent:  #ef6c4d;
  --link:    #4fd1c5;
  --code-bg: #0e1319;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }

.layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 280px;
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 16px;
  overflow-y: auto;
  max-height: 100vh;
  position: sticky;
  top: 0;
}

.sidebar .site-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0 0 4px 0;
}

.sidebar .site-subtitle {
  font-size: 0.8rem;
  color: var(--sub);
  margin: 0 0 16px 0;
}

.sidebar .home-link {
  display: block;
  margin-bottom: 14px;
  font-weight: 600;
}

.sidebar nav ul {
  list-style: none;
  margin: 0;
  padding-left: 14px;
}

.sidebar nav > ul {
  padding-left: 0;
}

.sidebar nav li { margin: 2px 0; }

.sidebar nav a {
  display: block;
  padding: 3px 6px;
  border-radius: 4px;
  color: var(--text);
  font-size: 0.92rem;
}

.sidebar nav a:hover {
  background: var(--panel);
  text-decoration: none;
}

.sidebar nav a.current {
  background: var(--accent);
  color: #1a1006;
  font-weight: 600;
}

.sidebar details > summary {
  cursor: pointer;
  padding: 3px 6px;
  border-radius: 4px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--sub);
  list-style: none;
}

.sidebar details > summary::-webkit-details-marker { display: none; }

.sidebar details > summary::before {
  content: "\25B8 ";
  display: inline-block;
  transition: transform 0.1s ease;
}

.sidebar details[open] > summary::before {
  transform: rotate(90deg);
}

.sidebar details > summary:hover {
  background: var(--panel);
}

/* Main content */
.main {
  flex: 1;
  min-width: 0;
  padding: 24px 32px 64px 32px;
}

.search-box {
  position: relative;
  margin-bottom: 20px;
}

.search-box input {
  width: 100%;
  max-width: 480px;
  padding: 10px 14px;
  font-size: 1rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
}

.search-box input:focus {
  outline: 1px solid var(--accent);
}

.search-results {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  width: 100%;
  max-width: 480px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  max-height: 360px;
  overflow-y: auto;
  z-index: 30;
  display: none;
}

.search-results.visible { display: block; }

.search-results a {
  display: block;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.search-results a:last-child { border-bottom: none; }

.search-results a:hover { background: var(--surface); }

.search-results .result-title {
  font-weight: 600;
  color: var(--link);
}

.search-results .result-path {
  font-size: 0.78rem;
  color: var(--sub);
}

.search-results .result-excerpt {
  font-size: 0.85rem;
  color: var(--sub);
  margin-top: 2px;
}

.search-results .no-results {
  padding: 8px 12px;
  color: var(--sub);
  font-size: 0.9rem;
}

.breadcrumb {
  font-size: 0.85rem;
  color: var(--sub);
  margin-bottom: 16px;
}

.breadcrumb a { color: var(--sub); }

/* Content typography */
.content h1:first-child { margin-top: 0; }

.content h1, .content h2, .content h3 {
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 6px;
}

.content h1 { font-size: 1.7rem; }
.content h2 { font-size: 1.35rem; margin-top: 2em; }
.content h3 { font-size: 1.1rem; border-bottom: none; }

.content table {
  border-collapse: collapse;
  width: 100%;
  margin: 1em 0;
  font-size: 0.92rem;
}

.content th, .content td {
  border: 1px solid var(--border);
  padding: 6px 10px;
  text-align: left;
  vertical-align: top;
}

.content th {
  background: var(--surface);
  color: var(--accent);
}

.content tr:nth-child(even) td {
  background: var(--surface);
}

.content code {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 1px 5px;
  font-size: 0.9em;
}

.content pre {
  background: var(--code-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px;
  overflow-x: auto;
}

.content pre code { border: none; padding: 0; }

.content blockquote {
  border-left: 3px solid var(--accent);
  margin: 1em 0;
  padding: 0.4em 1em;
  background: var(--surface);
  color: var(--sub);
}

.content hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

.file-listing {
  list-style: none;
  padding: 0;
}

.file-listing li {
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
}

/* Mobile */
.menu-toggle {
  display: none;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  font-size: 0.95rem;
  margin-bottom: 12px;
  cursor: pointer;
}

@media (max-width: 860px) {
  .layout { flex-direction: column; }

  .menu-toggle { display: inline-block; }

  .sidebar {
    position: static;
    width: auto;
    max-height: none;
    border-right: none;
    border-bottom: 1px solid var(--border);
    display: none;
  }

  .sidebar.open { display: block; }

  .main { padding: 16px; }
}