:root{--bg:#f5f6f7;--surface:#fff;--border:#e2e5e8;--text:#22282d;--text-muted:#6b7480;--accent:#0e3a3f;color:var(--text);font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif}*{box-sizing:border-box}body{background:var(--bg);margin:0}.layout{grid-template-columns:240px 1fr;min-height:100vh;display:grid}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:1.25rem 1rem}.brand{letter-spacing:.02em;color:var(--accent);align-items:baseline;gap:.5rem;margin-bottom:1.5rem;font-weight:700;display:flex}.brand-tag{text-transform:uppercase;color:var(--surface);background:var(--accent);border-radius:3px;padding:.1rem .4rem;font-size:.75rem;font-weight:600}.nav-list{flex-direction:column;gap:.25rem;margin:0;padding:0;list-style:none;display:flex}.nav-item{width:100%;font:inherit;color:var(--text-muted);text-align:left;cursor:not-allowed;background:0 0;border:0;border-radius:6px;justify-content:space-between;align-items:center;gap:.5rem;padding:.5rem .65rem;display:flex}.soon{text-transform:uppercase;letter-spacing:.04em;color:var(--text-muted);border:1px solid var(--border);white-space:nowrap;border-radius:999px;padding:.05rem .45rem;font-size:.68rem}.content{max-width:52rem;padding:2.5rem 3rem}.content h1{color:var(--accent);margin:0 0 1rem;font-size:1.6rem}.content p{margin:0 0 1rem;line-height:1.6}.scaffold-note{color:var(--text-muted);background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:.75rem 1rem}@media (width<=720px){.layout{grid-template-columns:1fr}.sidebar{border-right:0;border-bottom:1px solid var(--border)}.content{padding:1.5rem 1.25rem}}