:root{--bg:#fff;--fg:#1e293b;--muted:#64748b;--accent:#16a34a;--accent-dark:#15803d;--border:#e2e8f0;--code-bg:#f1f5f9;--sidebar-bg:#f8fafc;--sidebar-w:240px}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji;font-size:16px;line-height:1.6}a{color:var(--accent-dark);text-decoration:none}a:hover{text-decoration:underline}.shell{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-w);flex:0 0 var(--sidebar-w);background:var(--sidebar-bg);border-right:1px solid var(--border);align-self:flex-start;height:100vh;padding:24px 16px;position:sticky;top:0;overflow-y:auto}.sidebar .brand{color:var(--fg);margin-bottom:20px;font-size:1.05rem;font-weight:700;display:block}.sidebar .nav-group-label{text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:18px 0 6px;font-size:.72rem}.sidebar nav a{color:var(--fg);border-radius:6px;padding:5px 8px;font-size:.92rem;display:block}.sidebar nav a:hover{background:#eef2f7;text-decoration:none}.content{flex:auto;min-width:0}.prose{max-width:760px;padding:40px 48px 80px}.prose h1{margin:0 0 8px;font-size:1.9rem}.prose h2{border-bottom:1px solid var(--border);margin:32px 0 8px;padding-bottom:4px;font-size:1.3rem}.prose h3{margin:22px 0 6px;font-size:1.05rem}.prose p,.prose li{color:#334155}.prose .lead{color:var(--muted);font-size:1.05rem}code{background:var(--code-bg);border-radius:4px;padding:2px 5px;font-family:ui-monospace,SFMono-Regular,SF Mono,Menlo,Consolas,monospace;font-size:.86em}pre{background:var(--code-bg);border:1px solid var(--border);border-radius:8px;padding:14px 16px;font-size:.84rem;line-height:1.5;overflow-x:auto}pre code{font-size:inherit;background:0 0;padding:0}.code-label{text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin:14px 0 4px;font-size:.72rem;font-weight:600;display:inline-block}.callout{border-left:4px solid var(--accent);background:#f0fdf4;border-radius:0 6px 6px 0;margin:18px 0;padding:12px 16px}.base-url{background:var(--code-bg);border-radius:6px;padding:8px 12px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.9rem;display:inline-block}.full-bleed{width:100%;height:100vh}