*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}.App{max-width:1200px;margin:0 auto;padding:20px}header{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:2px solid #ddd;margin-bottom:20px}nav{display:flex;gap:20px;margin-bottom:30px;padding:10px 0;border-bottom:1px solid #ddd}nav a{text-decoration:none;color:#333;font-weight:500;padding:8px 16px;border-radius:4px;transition:background-color .2s}nav a:hover{background-color:#e0e0e0}.wallet-connect{display:flex;align-items:center;gap:10px}.wallet-connect button{padding:8px 16px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer}.wallet-connect button:hover{background-color:#0056b3}.rfq-item,.auction-info,.bid-item{background:#fff;padding:15px;margin:10px 0;border-radius:8px;box-shadow:0 2px 4px #0000001a}.bid-item.winning{border:2px solid #28a745}.badge-winning{background-color:#28a745;color:#fff;padding:4px 8px;border-radius:4px;font-size:12px}.status-connected{color:#28a745;font-weight:700}form{background:#fff;padding:20px;border-radius:8px;margin:20px 0}form div{margin-bottom:15px}form label{display:block;margin-bottom:5px;font-weight:500}form input,form textarea,form select{width:100%;padding:8px;border:1px solid #ddd;border-radius:4px;font-size:14px}form button{padding:10px 20px;background-color:#007bff;color:#fff;border:none;border-radius:4px;cursor:pointer;font-size:16px}form button:hover:not(:disabled){background-color:#0056b3}form button:disabled{opacity:.6;cursor:not-allowed}.loading{text-align:center;padding:40px}.spinner{border:4px solid #f3f3f3;border-top:4px solid #007bff;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite;margin:0 auto 10px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error{background-color:#f8d7da;color:#721c24;padding:15px;border-radius:4px;margin:10px 0}.error button{margin-top:10px;padding:5px 10px;background-color:#721c24;color:#fff;border:none;border-radius:4px;cursor:pointer}