:root {
  --bg: #0d1017;
  --bg2: #141a24;
  --bg3: #1c2432;
  --bg4: #243047;
  --border: rgba(255, 255, 255, 0.08);
  --border2: rgba(255, 255, 255, 0.16);
  --text: #e9eef7;
  --muted: #93a0b6;
  --accent: #315fb8;
  --accent2: #78a2ff;
  --accent3: #68d6c3;
  --accent4: #e98b6b;
  --accent5: #c08aff;
  --accent6: #81dfac;
  --code-bg: #0a0f17;
  --tag-bg: rgba(49, 95, 184, 0.12);
  --tag-text: #9db8ff;
  --mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
  --sans: 'Inter', system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--sans); font-size: 14px; line-height: 1.7; display: flex; min-height: 100vh; }
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

.sidebar { width: 260px; min-width: 260px; background: var(--bg2); border-right: 1px solid var(--border); position: sticky; top: 0; height: 100vh; overflow-y: auto; padding: 24px 0 40px; flex-shrink: 0; }
.sidebar::-webkit-scrollbar { width: 4px; }
.sidebar::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 2px; }
.logo { padding: 0 20px 20px; border-bottom: 1px solid var(--border); margin-bottom: 16px; }
.logo-title { font-size: 13px; font-weight: 600; color: var(--accent2); letter-spacing: 0.08em; text-transform: uppercase; }
.logo-sub { font-size: 11px; color: var(--muted); margin-top: 2px; }
.nav-section { margin-bottom: 4px; }
.nav-label { font-size: 10px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: 0.1em; padding: 10px 20px 4px; }
.nav-link { display: block; padding: 6px 20px; color: var(--muted); text-decoration: none; font-size: 13px; transition: color 0.15s, background 0.15s; border-left: 2px solid transparent; }
.nav-link:hover { color: var(--text); background: var(--bg3); }
.nav-link.active { color: var(--accent2); border-left-color: var(--accent); background: rgba(49, 95, 184, 0.08); }

.main { flex: 1; max-width: 920px; padding: 40px 48px 80px; overflow-x: hidden; }
section { margin-bottom: 60px; scroll-margin-top: 24px; }
h1 { font-size: 28px; font-weight: 600; color: var(--text); margin-bottom: 6px; }
h2 { font-size: 20px; font-weight: 600; color: var(--text); margin: 36px 0 14px; padding-bottom: 8px; border-bottom: 1px solid var(--border); }
h3 { font-size: 15px; font-weight: 600; color: var(--text); margin: 24px 0 10px; }
p { color: var(--muted); margin-bottom: 10px; line-height: 1.7; font-size: 14px; }
p strong { color: var(--text); font-weight: 500; }
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

.hero { background: linear-gradient(135deg, rgba(49, 95, 184, 0.14) 0%, rgba(192, 138, 255, 0.06) 100%); border: 1px solid rgba(49, 95, 184, 0.24); border-radius: 10px; padding: 24px 28px; margin-bottom: 36px; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; top: -30px; right: -30px; width: 140px; height: 140px; background: radial-gradient(circle, rgba(120, 162, 255, 0.18), transparent 70%); pointer-events: none; }
.hero h1 { font-size: 22px; margin-bottom: 4px; }
.hero-meta { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 14px; }

.badge { font-size: 11px; font-weight: 500; padding: 3px 10px; border-radius: 20px; white-space: nowrap; }
.badge-red { background: rgba(49, 95, 184, 0.16); color: #a8c1ff; border: 1px solid rgba(49, 95, 184, 0.26); }
.badge-blue { background: rgba(120, 162, 255, 0.16); color: #bfd0ff; border: 1px solid rgba(120, 162, 255, 0.24); }
.badge-green { background: rgba(104, 214, 195, 0.12); color: #94eadb; border: 1px solid rgba(104, 214, 195, 0.22); }
.badge-purple { background: rgba(192, 138, 255, 0.14); color: #d0abff; border: 1px solid rgba(192, 138, 255, 0.22); }
.badge-amber { background: rgba(233, 139, 107, 0.14); color: #f3b19a; border: 1px solid rgba(233, 139, 107, 0.22); }

pre { background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; padding: 16px 20px; overflow-x: auto; margin: 12px 0; font-family: var(--mono); font-size: 13px; line-height: 1.6; }
code { font-family: var(--mono); font-size: 12.5px; background: rgba(255, 255, 255, 0.06); padding: 1px 5px; border-radius: 4px; color: var(--accent3); }
pre code { background: none; padding: 0; border-radius: 0; color: inherit; font-size: 13px; }

.table-wrap { overflow-x: auto; margin: 12px 0; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 8px 12px; background: var(--bg3); color: var(--text); font-weight: 500; border-bottom: 1px solid var(--border2); font-size: 12px; text-transform: uppercase; letter-spacing: 0.05em; }
td { padding: 9px 12px; border-bottom: 1px solid var(--border); color: var(--muted); vertical-align: top; }
tr:hover td { background: rgba(255, 255, 255, 0.02); }

.callout { display: flex; gap: 12px; border-radius: 8px; padding: 14px 16px; margin: 14px 0; font-size: 13px; line-height: 1.6; }
.callout-icon { font-size: 16px; flex-shrink: 0; margin-top: 1px; }
.callout-body { color: var(--muted); }
.callout-body strong { color: var(--text); }
.callout.tip { background: rgba(129, 223, 172, 0.07); border: 1px solid rgba(129, 223, 172, 0.18); }
.callout.info { background: rgba(49, 95, 184, 0.09); border: 1px solid rgba(49, 95, 184, 0.2); }

.flow { display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.flow-step { font-size: 12px; font-weight: 500; padding: 5px 12px; border-radius: 6px; background: var(--bg3); border: 1px solid var(--border2); color: var(--text); }
.flow-arrow { color: var(--muted); font-size: 14px; }

.link-list { list-style: none; display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.link-list li { display: flex; align-items: baseline; gap: 8px; padding: 8px 14px; background: var(--bg2); border: 1px solid var(--border); border-radius: 7px; font-size: 13px; transition: border-color 0.15s; }
.link-list li:hover { border-color: var(--border2); }
.link-list .ll-tag { font-size: 10px; color: var(--muted); background: var(--bg3); padding: 1px 6px; border-radius: 4px; flex-shrink: 0; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255, 255, 255, 0.1); border-radius: 3px; }

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { padding: 24px 20px 60px; }
}