.ecu-extractor {
    max-width: 600px;
    margin: 20px auto;
    padding: 30px;
    background: #f8f9fa;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.ecu-extractor h3 {
    color: #212529;
    margin-bottom: 20px;
    text-align: center;
}

.ecu-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.ecu-form input[type="file"] {
    padding: 12px;
    border: 2px dashed #007cba;
    border-radius: 8px;
    background: white;
    font-size: 14px;
}

.ecu-form select {
    padding: 12px;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    font-size: 14px;
}

.ecu-form button {
    background: linear-gradient(135deg, #007cba, #005a8b);
    color: white;
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.ecu-form button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,124,186,0.4);
}

.ecu-form button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
}

.ecu-status {
    margin-top: 15px;
    padding: 12px;
    border-radius: 8px;
    display: none;
}

.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

@media (max-width: 768px) {
    .ecu-extractor {
        margin: 10px;
        padding: 20px;
    }
}