.tab-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    border-bottom: 2px solid #f0f0f0;
}

.tab-button {
    background: none;
    border: none;
    padding: 12px 24px;
    cursor: pointer;
    font-size: 15px;
    color: #666;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all 0.3s ease;
}

.tab-button:hover {
    color: #333;
}

.tab-button.active {
    color: #007bff;
    border-bottom-color: #007bff;
    font-weight: 500;
}

#vehicleModal .tab-content {
    display: none;
}

#vehicleModal .tab-content.active {
    display: block;
}

#vehicleModal .form-group {
    margin-bottom: 20px;
}

#vehicleModal .form-group label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

#vehicleModal .input-group {
    display: flex;
    gap: 8px;
}

#vehicleModal .input-group input {
    flex: 1;
}

#vehicleModal .form-hint {
    display: block;
    margin-top: 6px;
    color: #666;
    font-size: 12px;
}

#vehicleModal .search-hint {
    margin: 0 0 16px 0;
    color: #666;
    font-size: 13px;
}

#vehicleModal .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.vehicle-search-section {
    background: #f8f9fa;
    padding: 20px;
    border-radius: 8px;
}

.vehicle-search-section h4 {
    margin: 0 0 8px 0;
    color: #333;
    font-size: 16px;
}

.vehicle-summary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 16px;
    border-radius: 8px;
    margin-bottom: 24px;
    font-size: 15px;
}

#lookupResult {
    margin-top: 16px;
    padding: 12px;
    background: white;
    border-radius: 6px;
    border: 2px solid #28a745;
    display: none;
}

#lookupResult.show {
    display: block;
}

.search-steps {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

#vinMessage {
    margin-top: 16px;
    padding: 12px;
    border-radius: 6px;
    display: none;
}

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

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

@media (max-width: 768px) {
    #vehicleModal .form-row {
        grid-template-columns: 1fr;
    }

    .tab-buttons {
        flex-direction: column;
    }

    .tab-button {
        border-bottom: none;
        border-left: 3px solid transparent;
        text-align: left;
    }

    .tab-button.active {
        border-left-color: #007bff;
        border-bottom-color: transparent;
    }
}