:root{color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;background:#f6f7fb}a{color:inherit;text-decoration:none}.app{display:grid;grid-template-columns:260px 1fr;min-height:100vh}.sidebar{background:#0f172a;color:#e5e7eb;padding:18px;position:sticky;top:0;height:100vh}.brand{font-weight:800;font-size:18px;margin-bottom:14px}.small{opacity:.8;font-size:12px;margin-bottom:14px}.nav a{display:block;padding:10px 12px;border-radius:10px;margin-bottom:6px;background:#ffffff0f}.nav a:hover{background:#ffffff1a}.content{padding:22px}.card{background:#fff;border-radius:14px;padding:16px;box-shadow:0 8px 30px #0f172a0f}.h1{font-size:18px;font-weight:800;margin:0 0 12px}.table{width:100%;border-collapse:collapse}.table th,.table td{padding:10px 12px;border-bottom:1px solid #eef2ff;text-align:left;font-size:14px}.btn{background:#111827;color:#fff;border:0;padding:10px 12px;border-radius:10px;cursor:pointer}.btn.secondary{background:#334155}.row{display:flex;gap:12px;align-items:center;justify-content:space-between}