*{margin:0;padding:0;box-sizing:border-box}body{font-family:Segoe UI,Arial,sans-serif;background:#0d2137;color:#e0e0e0;min-height:100vh}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:#0d2137}::-webkit-scrollbar-thumb{background:#2e75b6;border-radius:3px}.btn{padding:.5rem 1.2rem;border:none;border-radius:6px;cursor:pointer;font-size:.9rem;font-weight:600;transition:opacity .2s}.btn:hover{opacity:.85}.btn-primary{background:#2e75b6;color:#fff}.btn-danger{background:#c0392b;color:#fff}