:root {
  --bg: #0d1117;
  --bg-card: #161b22;
  --bg-code: #1c2128;
  --border: #30363d;
  --text: #e6edf3;
  --text-dim: #8b949e;
  --accent: #58a6ff;
  --accent2: #3fb950;
  --accent3: #d2a8ff;
  --accent4: #f0883e;
  --accent5: #ff7b72;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}
.layout { display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: 290px;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  overflow-y: auto;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  z-index: 10;
}
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.main { margin-left: 290px; flex: 1; padding: 40px 48px; max-width: 960px; }

.sidebar .logo {
  padding: 0 20px 16px;
  font-size: 20px; font-weight: 700;
  color: var(--accent); letter-spacing: -0.5px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.sidebar .logo span { color: var(--text); }
.search-box { padding: 8px 20px 12px; }
.search-box input {
  width: 100%; padding: 7px 10px;
  background: var(--bg); border: 1px solid var(--border); border-radius: 6px;
  color: var(--text); font-size: 13px; outline: none;
}
.search-box input:focus { border-color: var(--accent); }
.search-box input::placeholder { color: var(--text-dim); }

.nav-section-title {
  padding: 10px 20px 4px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px;
  color: var(--text-dim);
}

/* Section toggle (player, vehicle, ...) */
.nav-toggle {
  display: flex; align-items: center; gap: 6px;
  padding: 5px 20px 5px 20px;
  font-size: 13px; font-weight: 600;
  color: var(--text-dim);
  cursor: pointer; user-select: none;
  text-decoration: none;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}
.nav-toggle:hover { color: var(--text); background: rgba(88,166,255,0.06); }
.nav-toggle .arrow {
  display: inline-block; width: 12px; font-size: 10px;
  transition: transform 0.2s;
  color: var(--text-dim);
}
.nav-toggle.open .arrow { transform: rotate(90deg); }

/* Sub-items */
.nav-children {
  display: none;
  padding-left: 0;
}
.nav-toggle.open + .nav-children { display: block; }
.nav-fn {
  display: block;
  padding: 2px 20px 2px 40px;
  font-size: 12px;
  font-family: "JetBrains Mono", "Cascadia Code", "Fira Code", monospace;
  color: var(--accent2);
  text-decoration: none;
  transition: all 0.12s;
  border-left: 2px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-fn:hover { color: var(--text); background: rgba(63,185,80,0.08); }
.nav-fn.active { color: var(--accent); border-left-color: var(--accent); background: rgba(88,166,255,0.08); }

/* Category heading links inside nav-children */
.nav-cat {
  display: block;
  padding: 6px 20px 2px 28px;
  font-size: 11px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.5px;
  color: var(--text-dim);
  text-decoration: none;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}
.nav-cat:hover { color: var(--text); background: rgba(88,166,255,0.06); }
.nav-cat.active { color: var(--accent); border-left-color: var(--accent); background: rgba(88,166,255,0.08); }

/* Plain section link (no children) */
.nav-link {
  display: block;
  padding: 5px 20px 5px 28px;
  font-size: 13px; color: var(--text-dim);
  text-decoration: none;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}
.nav-link:hover { color: var(--text); background: rgba(88,166,255,0.06); }
.nav-link.active { color: var(--accent); border-left-color: var(--accent); background: rgba(88,166,255,0.08); }

/* ── Main Content ── */
h1 { font-size: 28px; font-weight: 700; margin-bottom: 8px; }
h1 .version { font-size: 14px; font-weight: 400; color: var(--text-dim); }
.lead { color: var(--text-dim); margin-bottom: 32px; font-size: 15px; }
h2 {
  font-size: 22px; font-weight: 600;
  margin: 48px 0 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  scroll-margin-top: 24px;
}
h2:first-child { margin-top: 0; }
h3 {
  font-size: 16px; font-weight: 600;
  margin: 28px 0 8px; color: var(--accent3);
  scroll-margin-top: 24px;
}
.api-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 8px; margin-bottom: 12px; overflow: hidden;
  scroll-margin-top: 24px;
}
.api-card-header {
  padding: 12px 16px; display: flex; align-items: center; gap: 10px;
  cursor: pointer; user-select: none;
}
.api-card-header:hover { background: rgba(255,255,255,0.02); }
.api-card-header .fn-name {
  font-family: "JetBrains Mono", "Cascadia Code", "Fira Code", monospace;
  font-size: 14px; font-weight: 600; color: var(--accent2);
}
.api-card-header .fn-params {
  font-family: "JetBrains Mono", "Cascadia Code", monospace;
  font-size: 13px; color: var(--text-dim);
}
.api-card-header .fn-ret {
  margin-left: auto;
  font-family: "JetBrains Mono", "Cascadia Code", monospace;
  font-size: 12px; color: var(--accent4);
  background: rgba(240,136,62,0.1); padding: 2px 8px; border-radius: 4px;
}
.api-card-body { padding: 0 16px 14px; font-size: 13.5px; color: var(--text-dim); }
.api-card-body p { margin-bottom: 6px; }
code {
  font-family: "JetBrains Mono", "Cascadia Code", "Fira Code", monospace;
  background: var(--bg-code); padding: 1px 5px; border-radius: 4px; font-size: 13px;
}
pre {
  background: var(--bg-code); border: 1px solid var(--border); border-radius: 8px;
  padding: 16px; overflow-x: auto; margin: 12px 0; font-size: 13px; line-height: 1.5;
}
pre code { background: none; padding: 0; }
.kw { color: var(--accent5); }
.fn { color: var(--accent2); }
.str { color: #a5d6ff; }
.cmt { color: #6e7681; font-style: italic; }
.num { color: var(--accent4); }
.param-table { width: 100%; border-collapse: collapse; margin: 8px 0; font-size: 13px; }
.param-table th { text-align: left; padding: 6px 10px; font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; color: var(--text-dim); border-bottom: 1px solid var(--border); }
.param-table td { padding: 5px 10px; border-bottom: 1px solid rgba(48,54,61,0.5); color: var(--text-dim); }
.param-table td:first-child { font-family: monospace; color: var(--accent); font-weight: 500; }
.param-table td:nth-child(2) { font-family: monospace; color: var(--accent4); }
.ns-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 8px; margin: 12px 0; }
.ns-pill { background: var(--bg-card); border: 1px solid var(--border); border-radius: 6px; padding: 8px 12px; font-family: monospace; font-size: 13px; font-weight: 500; color: var(--accent); text-align: center; transition: border-color 0.15s; }
.ns-pill:hover { border-color: var(--accent); }
.lifecycle-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 12px 0; }
.lifecycle-item { background: var(--bg-card); border: 1px solid var(--border); border-radius: 8px; padding: 14px 16px; }
.lifecycle-item h4 { font-family: monospace; font-size: 14px; color: var(--accent2); margin-bottom: 4px; }
.lifecycle-item p { font-size: 13px; color: var(--text-dim); }
.page-footer { margin-top: 64px; padding-top: 24px; border-top: 1px solid var(--border); color: var(--text-dim); font-size: 13px; }
/* ── Mobile hamburger button ── */
.mobile-menu-btn {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: 100;
  width: 44px; height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  font-size: 22px;
  line-height: 44px;
  text-align: center;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
}
.mobile-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  z-index: 49;
  background: rgba(0,0,0,0.5);
  -webkit-tap-highlight-color: transparent;
}
.mobile-overlay.visible { display: block; }

@media (max-width: 860px) {
  .mobile-menu-btn { display: block; }
  .sidebar {
    -webkit-transform: translateX(-100%);
    transform: translateX(-100%);
    -webkit-transition: -webkit-transform 0.25s ease;
    transition: transform 0.25s ease;
    z-index: 50;
  }
  .sidebar.mobile-open {
    -webkit-transform: translateX(0);
    transform: translateX(0);
  }
  .main { margin-left: 0; padding: 60px 16px 24px; }
}