*{box-sizing:border-box;font-family:Segoe UI,Arial,sans-serif}body{margin:0;background:#f4f7fb;color:#1a1a2e}.navbar{display:flex;justify-content:space-between;align-items:center;padding:1rem 2rem;background:#0f4c81;color:#fff}.navbar a{color:#fff;margin-right:1rem;text-decoration:none}.container{max-width:960px;margin:2rem auto;padding:0 1rem}.card{background:#fff;border-radius:8px;padding:1.5rem;box-shadow:0 2px 8px #00000014;margin-bottom:1rem}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}input,button{padding:.6rem;margin:.3rem 0 1rem;width:100%;border-radius:6px;border:1px solid #ccc}button{background:#0f4c81;color:#fff;border:none;cursor:pointer}.slot-grid{display:flex;flex-wrap:wrap;gap:.5rem}.slot{width:auto;padding:.5rem 1rem}.error{color:#d33}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:.5rem;border-bottom:1px solid #eee}