:root{--bg:#f8fafc;--card:#fff;--text:#334155;--heading:#0f172a;--muted:#64748b;--border:#e2e8f0;--accent:#ea580c;--warn-bg:#fffbeb;--warn-border:#fde68a;--warn-text:#92400e}*{box-sizing:border-box}body{background:var(--bg);color:var(--text);margin:0;font:16px/1.65 system-ui,-apple-system,Segoe UI,Roboto,sans-serif}a{color:var(--accent)}header,footer{background:var(--card);border-color:var(--border);border-style:solid;border-width:0}header{border-bottom-width:1px}footer{color:var(--muted);border-top-width:1px;font-size:13px}.wrap{max-width:760px;margin:0 auto;padding:16px}.bar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px 16px;display:flex}.brand{color:var(--heading);font-weight:700;text-decoration:none}nav a{color:var(--text);margin-left:16px;text-decoration:none}nav a:hover{color:var(--heading)}main.wrap{padding-top:40px;padding-bottom:40px}h1{color:var(--heading);margin:0 0 12px;font-size:30px;line-height:1.25}h2{color:var(--heading);margin:28px 0 8px;font-size:20px}.muted{color:var(--muted);font-size:14px}.lead{color:var(--muted);font-size:18px}code{word-break:break-all;font-size:14px}.warn{background:var(--warn-bg);border:1px solid var(--warn-border);color:var(--warn-text);border-radius:6px;padding:8px 12px;font-size:14px}