* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
            background: linear-gradient(135deg, #203b6a 0%, #193464 100%); 
        }
        
        .container-form {
            background: white;
            border-radius: 15px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            overflow: hidden;
            max-width: 650px;
            width: 100%;
            position: relative;
        }
        
        .form-header {
            position: relative;
            height: 180px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: white;
            text-align: center;
            overflow: hidden;
            background: url('img/banner_fin.webp') center/cover;
            /* background-attachment: fixed; */
        }
        
        .header-background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.3);
            backdrop-filter: blur(1px);
            -webkit-backdrop-filter: blur(1px);
            z-index: 1;
        }
        
        .header-overlay {
            display: none;
        }
        
        .header-content {
            position: relative;
            z-index: 3;
            padding: 20px 30px;
        }
        
        .form-header h2 {
            font-size: 1.8rem;
            font-weight: 700;
            margin-bottom: 5px;
            text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
        }
        
        .form-header p {
            font-size: 0.85rem;
            opacity: 0.95;
            margin: 0;
            text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.3);
        }
        
        .form-body {
            padding: 40px 30px;
        }
        
        .form-group {
            margin-bottom: 22px;
        }
        
        .form-label {
            font-weight: 600;
            color: #333;
            margin-bottom: 8px;
            display: block;
            font-size: 0.95rem;
        }
        
        .required::after {
            content: " *";
            color: #e74c3c;
        }
        
        .form-control, .form-select {
            border: 2px solid #e0e0e0;
            border-radius: 8px;
            padding: 12px 15px;
            font-size: 0.95rem;
            transition: all 0.3s ease;
        }
        
        .form-control:focus, .form-select:focus {
            border-color: #667eea;
            box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
            outline: none;
        }
        
        .form-control.is-invalid, .form-select.is-invalid {
            border-color: #e74c3c;
        }
        
        .form-control.is-valid, .form-select.is-valid {
            border-color: #27ae60;
        }
        
        .invalid-feedback {
            display: block;
            color: #e74c3c;
            font-size: 0.85rem;
            margin-top: 5px;
        }
        
        .valid-feedback {
            display: block;
            color: #27ae60;
            font-size: 0.85rem;
            margin-top: 5px;
        }
        
        .row-inputs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
        }
        
        .row-inputs.full {
            grid-template-columns: 1fr;
        }
        
        @media (max-width: 576px) {
            .row-inputs {
                grid-template-columns: 1fr;
            }
        }
        
        .btn-submit {
            /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
            background: linear-gradient(135deg, #e3a72f 0%, #ce9627 100%); 
            color: white;
            border: none;
            padding: 14px 30px;
            font-size: 1rem;
            font-weight: 600;
            border-radius: 8px;
            width: 100%;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }
        
        .btn-submit:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(102, 126, 234, 0.4);
            color: white;
        }
        
        .btn-submit:active {
            transform: translateY(0);
        }
        
        .btn-submit:disabled {
            opacity: 0.6;
            cursor: not-allowed;
            transform: none;
        }
        
        .success-message {
            display: none;
            background: #d4edda;
            color: #155724;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            border: 1px solid #c3e6cb;
        }

        .danger-message {
            display: none;
            background: #d41e4b;
            color: #571515;
            padding: 15px;
            border-radius: 8px;
            margin-bottom: 20px;
            border: 1px solid #e0345f;
        }
        
        .info-text {
            font-size: 0.85rem;
            color: #666;
            margin-top: 15px;
            padding: 12px;
            background: #f8f9fa;
            border-left: 4px solid #667eea;
            border-radius: 4px;
        }
        
        @media (max-width: 576px) {
            .form-header h2 {
                font-size: 1.5rem;
            }
            
            .form-body {
                padding: 25px 20px;
            }
        }

        .btn-add {
            background: #203b6a;
            color: white;
            border: none;
            padding: 12px 25px;
            font-size: 0.95rem;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: all 0.3s ease;
            width: 100%;
            margin-bottom: 15px;
        }
        
        .btn-add:hover {
            background: #203b6a;
            transform: translateY(-2px);
            box-shadow: 0 6px 15px rgba(39, 174, 96, 0.3);
        }

        .asistente-row {
            background: #f8f9fa;
            padding: 20px;
            border-radius: 10px;
            margin-bottom: 15px;
            border: 2px solid #e0e0e0;
            position: relative;
            transition: all 0.3s ease;
        }
        
        .asistente-row:hover {
            border-color: #203b6a;
            box-shadow: 0 4px 12px rgba(102, 126, 234, 0.1);
        }
        
        .asistente-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 15px;
        }
        
        .asistente-numero {
            font-weight: 700;
            color: #203b6a;
            font-size: 1rem;
        }
        
        .btn-remove {
            background: #e74c3c;
            color: white;
            border: none;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 0.85rem;
            transition: all 0.3s ease;
        }
        
        .btn-remove:hover {
            background: #c0392b;
            transform: scale(1.05);
        }
        
        .row-inputs {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 15px;
        }

        .drop-zone {
            border: 2px dashed #ccc;
            border-radius: 10px;
            padding: 40px 20px;
            text-align: center;
            background-color: #f8f9fa;
            transition: all 0.3s ease;
            cursor: pointer;
        }

        .drop-zone:hover {
            border-color: #007bff;
            background-color: #e9f5ff;
        }

        .drop-zone.dragover {
            border-color: #007bff;
            background-color: #d1ecff;
            transform: scale(1.02);
        }

        .drop-content i {
            font-size: 48px;
            color: #6c757d;
            margin-bottom: 15px;
        }

        .preview-container {
            margin-top: 20px;
            display: none;
        }

        .preview-image {
            max-width: 200px;
            max-height: 200px;
            border-radius: 5px;
            margin: 10px;
        }