:root{--bg:#f5f5f7;--surface:#ffffff;--text:#1d1d1f;--muted:#6e6e73;--border:#e5e5ea;--accent:#0071e3;--green:#34c759;--yellow:#ff9f0a;--red:#ff3b30;--radius:12px;--shadow:0 2px 12px rgba(0,0,0,0.06)}*{box-sizing:border-box}body,html{margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent);text-decoration:none}.btn,button{display:inline-flex;align-items:center;justify-content:center;padding:.6rem 1.1rem;border-radius:999px;border:none;font-size:.95rem;font-weight:500;cursor:pointer;background:var(--accent);color:#fff}button.secondary{color:var(--text)}button.secondary,input{background:var(--surface);border:1px solid var(--border)}input{width:100%;padding:.65rem .85rem;border-radius:8px;font-size:1rem}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:1.25rem}.layout{display:grid;grid-template-columns:220px 1fr;min-height:100vh}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:1.5rem 1rem}.sidebar nav a{display:block;padding:.5rem .75rem;border-radius:8px;color:var(--text);margin-bottom:.25rem}.sidebar nav a:hover{background:var(--bg)}.main{padding:2rem;max-width:1100px}.badge{display:inline-block;padding:.15rem .5rem;border-radius:6px;font-size:.75rem;font-weight:600}.badge.green{background:#e8f8ec;color:#1a7f37}.badge.yellow{background:#fff4e5;color:#9a6700}.badge.red{background:#ffebe9;color:#cf222e}