:root {
            --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
            --danger-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
            --warning-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 100%);
        }

        * {
            font-family: 'Inter', sans-serif;
        }

        body {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            min-height: 100vh;
            padding: 20px;
        }

        .form-container {
            max-width: 900px;
            margin: 0 auto;
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0,0,0,0.15);
            overflow: hidden;
            animation: slideUp 0.6s ease;
        }

        @keyframes slideUp {
            from {
                opacity: 0;
                transform: translateY(50px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        .form-header {
            background: var(--primary-gradient);
            padding: 30px 40px;
            color: white;
            position: relative;
            overflow: hidden;
        }

        .form-header::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 300px;
            height: 300px;
            background: rgba(255,255,255,0.1);
            border-radius: 50%;
        }

        .form-header::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -10%;
            width: 200px;
            height: 200px;
            background: rgba(255,255,255,0.05);
            border-radius: 50%;
        }

        .form-header h2 {
            font-weight: 700;
            margin-bottom: 5px;
            position: relative;
            z-index: 1;
        }

        .form-header p {
            opacity: 0.9;
            margin-bottom: 0;
            position: relative;
            z-index: 1;
        }

        .form-body {
            padding: 40px;
        }

        .form-section {
            margin-bottom: 35px;
            padding-bottom: 25px;
            border-bottom: 2px dashed #e9ecef;
        }

        .form-section:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .section-title {
            font-size: 1.1rem;
            font-weight: 600;
            color: #2d3748;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .section-title i {
            color: #667eea;
            font-size: 1.3rem;
        }

        .form-label {
            font-weight: 500;
            color: #4a5568;
            font-size: 0.9rem;
        }

        .form-label .required {
            color: #e53e3e;
            margin-left: 3px;
        }

        .form-control, .form-select {
            border-radius: 10px;
            border: 2px solid #e2e8f0;
            padding: 10px 15px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
        }

        .form-control:focus, .form-select:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.15);
        }

        .form-control.is-valid, .form-select.is-valid {
            border-color: #48bb78;
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8' viewBox='0 0 8 8'%3e%3cpath fill='%2348bb78' d='M2.3 6.73L.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");
            background-repeat: no-repeat;
            background-position: right calc(0.375em + 0.1875rem) center;
            background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem);
        }

        .form-control.is-invalid, .form-select.is-invalid {
            border-color: #fc8181;
        }

        .input-group-text {
            background: #f7fafc;
            border: 2px solid #e2e8f0;
            border-radius: 10px 0 0 10px;
            font-weight: 500;
            color: #4a5568;
        }

        .input-group .form-control {
            border-radius: 0 10px 10px 0;
        }

        .input-group .form-select {
            border-radius: 0 10px 10px 0;
        }

        .form-text {
            font-size: 0.8rem;
            color: #718096;
            margin-top: 5px;
        }

        .invalid-feedback {
            font-size: 0.85rem;
            font-weight: 500;
        }

        /* Estilo para switches */
        .form-switch .form-check-input {
            width: 3em;
            height: 1.5em;
            border-radius: 1em;
            border: 2px solid #e2e8f0;
        }

        .form-switch .form-check-input:checked {
            background-color: #667eea;
            border-color: #667eea;
        }

        /* Estilo para el card de vehículo seleccionado */
        .vehicle-card {
            background: linear-gradient(135deg, #f7fafc 0%, #edf2f7 100%);
            border-radius: 12px;
            padding: 15px 20px;
            border-left: 4px solid #667eea;
            display: none;
            margin-top: 10px;
        }

        .vehicle-card.active {
            display: block;
            animation: fadeIn 0.3s ease;
        }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(-10px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .vehicle-card .vehicle-info {
            display: flex;
            align-items: center;
            gap: 15px;
            flex-wrap: wrap;
        }

        .vehicle-card .vehicle-icon {
            font-size: 2rem;
            color: #667eea;
        }

        .vehicle-card .vehicle-details {
            flex: 1;
        }

        .vehicle-card .vehicle-details strong {
            display: block;
            color: #2d3748;
            font-size: 1.05rem;
        }

        .vehicle-card .vehicle-details small {
            color: #718096;
        }

        /* Botones */
        .btn-submit {
            background: var(--primary-gradient);
            border: none;
            padding: 12px 40px;
            border-radius: 50px;
            font-weight: 600;
            font-size: 1rem;
            color: white;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
        }

        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
            color: white;
        }

        .btn-submit:active {
            transform: translateY(0);
        }

        .btn-submit i {
            margin-right: 8px;
        }

        .btn-reset {
            background: #e2e8f0;
            border: none;
            padding: 12px 30px;
            border-radius: 50px;
            font-weight: 500;
            color: #4a5568;
            transition: all 0.3s ease;
        }

        .btn-reset:hover {
            background: #cbd5e0;
        }

        /* Responsive */
        @media (max-width: 768px) {
            .form-header {
                padding: 20px;
            }
            
            .form-body {
                padding: 20px;
            }
            
            .form-header h2 {
                font-size: 1.5rem;
            }
            
            .btn-submit, .btn-reset {
                width: 100%;
                margin-bottom: 10px;
            }
        }

        /* Toast personalizado */
        .toast-container {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 9999;
        }

        .toast-custom {
            background: white;
            border-radius: 12px;
            box-shadow: 0 10px 40px rgba(0,0,0,0.15);
            padding: 16px 24px;
            min-width: 300px;
            animation: slideInRight 0.5s ease;
        }

        @keyframes slideInRight {
            from {
                opacity: 0;
                transform: translateX(100px);
            }
            to {
                opacity: 1;
                transform: translateX(0);
            }
        }

        .toast-custom.success {
            border-left: 4px solid #48bb78;
        }

        .toast-custom.error {
            border-left: 4px solid #fc8181;
        }

        .toast-custom.warning {
            border-left: 4px solid #f6ad55;
        }

        .toast-custom .toast-icon {
            font-size: 1.5rem;
            margin-right: 12px;
        }

        .toast-custom .toast-content {
            flex: 1;
        }

        .toast-custom .toast-title {
            font-weight: 600;
            color: #2d3748;
        }

        .toast-custom .toast-message {
            color: #718096;
            font-size: 0.9rem;
        }

        .toast-custom .toast-close {
            cursor: pointer;
            color: #a0aec0;
            font-size: 1.2rem;
            transition: color 0.2s;
        }

        .toast-custom .toast-close:hover {
            color: #4a5568;
        }