    /* Registration Form Container */
    
    .alert-warning {
        background-color: #fff3cd;
        border: 1px solid #ffc107;
        border-radius: 8px;
        padding: 15px;
        color: #856404;
        margin-bottom: 15px;
    }

    .alert-warning i {
        margin-right: 8px;
    }

    input:disabled,
    select:disabled {
        background-color: #f3f4f6 !important;
        cursor: not-allowed;
    }
    
    
    .registration-container {
        max-width: 1200px;
        margin: 40px auto;
        padding: 0 20px;
    }
    
    .registration-header {
        text-align: center;
        margin-bottom: 40px;
    }
    
    .registration-header h1 {
        font-size: 32px;
        font-weight: 700;
        color: #1a1a1a;
        margin-bottom: 10px;
    }
    
    .registration-header p {
        font-size: 16px;
        color: #6b7280;
    }
    
    /* Progress Steps */
    .progress-steps {
        display: flex;
        justify-content: space-between;
        margin-bottom: 50px;
        position: relative;
    }
    
    .progress-steps::before {
        content: '';
        position: absolute;
        top: 20px;
        left: 0;
        right: 0;
        height: 2px;
        background: #e5e7eb;
        z-index: 0;
    }
    
    .progress-line {
        position: absolute;
        top: 20px;
        left: 0;
        height: 2px;
        background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
        transition: width 0.3s ease;
        z-index: 1;
    }
    
    .progress-step {
        flex: 1;
        text-align: center;
        position: relative;
        z-index: 2;
    }
    
    .step-circle {
        width: 40px;
        height: 40px;
        border-radius: 50%;
        background: white;
        border: 2px solid #e5e7eb;
        display: flex;
        align-items: center;
        justify-content: center;
        margin: 0 auto 10px;
        font-weight: 600;
        color: #9ca3af;
        transition: all 0.3s ease;
    }
    
    .progress-step.active .step-circle {
        background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
        border-color: #dc3545;
        color: white;
        box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
    }
    
    .progress-step.completed .step-circle {
        background: #10b981;
        border-color: #10b981;
        color: white;
    }
    
    .progress-step.completed .step-circle::before {
        content: '✓';
        font-weight: bold;
    }
    
    .step-label {
        font-size: 14px;
        color: #6b7280;
        font-weight: 500;
    }
    
    .progress-step.active .step-label {
        color: #dc3545;
        font-weight: 600;
    }
    
    /* Section Cards */
    .section-card {
        background: white;
        border-radius: 16px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
        padding: 30px;
        margin-bottom: 30px;
        display: none;
    }
    
    .section-card.active {
        display: block;
        animation: fadeIn 0.3s ease;
    }
    
    @keyframes fadeIn {
        from {
            opacity: 0;
            transform: translateY(20px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }
    
    .section-header {
        display: flex;
        align-items: center;
        gap: 15px;
        margin-bottom: 25px;
        padding-bottom: 20px;
        border-bottom: 2px solid #f3f4f6;
    }
    
    .section-icon {
        width: 50px;
        height: 50px;
        border-radius: 12px;
        background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 24px;
    }
    
    .section-title h3 {
        font-size: 22px;
        font-weight: 700;
        color: #1a1a1a;
        margin: 0 0 5px 0;
    }
    
    .section-title p {
        font-size: 14px;
        color: #6b7280;
        margin: 0;
    }
    
    /* Form Groups */
    .form-row {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        margin-bottom: 20px;
    }
    
    .form-group {
        margin-bottom: 20px;
    }
    
    .form-group.full-width {
        grid-column: 1 / -1;
    }
    
    .form-label {
        display: block;
        font-size: 14px;
        font-weight: 600;
        color: #374151;
        margin-bottom: 8px;
    }
    
    .form-label.required::after {
        content: '*';
        color: #dc3545;
        margin-left: 4px;
    }
    
    .input-wrapper {
        position: relative;
    }
    
    .input-icon {
        position: absolute;
        left: 16px;
        top: 50%;
        transform: translateY(-50%);
        color: #9ca3af;
        font-size: 16px;
        z-index: 1;
    }
    
    .form-control {
        width: 100%;
        padding: 12px 16px 12px 45px;
        border: 2px solid #e5e7eb;
        border-radius: 10px;
        font-size: 15px;
        transition: all 0.3s ease;
        background: white;
    }
    
    .form-control:focus {
        outline: none;
        border-color: #dc3545;
        box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1);
    }
    
    .form-control.no-icon {
        padding-left: 16px;
    }
    
    /* Select2 Customization */
    .select2-container {
        width: 100% !important;
    }
    
    .select2-container--bootstrap-5 .select2-selection {
        border: 2px solid #e5e7eb !important;
        border-radius: 10px !important;
        min-height: 48px !important;
        padding: 8px 16px !important;
    }
    
    .select2-container--bootstrap-5.select2-container--focus .select2-selection {
        border-color: #dc3545 !important;
        box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1) !important;
    }

    /* OTP Styles */
    .otp-container {
        background: #f8f9fa;
        padding: 20px;
        border-radius: 12px;
        border: 2px solid #e5e7eb;
        margin-bottom: 20px;
    }

    .otp-inputs {
        display: flex;
        gap: 10px;
        justify-content: center;
        margin: 15px 0;
    }

    .otp-box {
        width: 50px;
        height: 50px;
        text-align: center;
        font-size: 24px;
        border: 2px solid #e5e7eb;
        border-radius: 8px;
        font-weight: 600;
        transition: all 0.3s ease;
        outline: none;
    }

    .otp-box:focus {
        border-color: #dc3545;
        box-shadow: 0 0 0 4px rgba(220, 53, 69, 0.1);
        transform: scale(1.05);
    }

    .otp-box:not(:placeholder-shown) {
        border-color: #10b981;
        background: #f0fdf4;
    }

    .otp-verifying {
        pointer-events: none;
        opacity: 0.6;
    }

    .otp-verifying .otp-box {
        border-color: #fbbf24;
        animation: verifyPulse 1s ease infinite;
    }

    @keyframes verifyPulse {
        0%, 100% { 
            border-color: #fbbf24;
            box-shadow: 0 0 0 4px rgba(251, 191, 36, 0.2);
        }
        50% { 
            border-color: #f59e0b;
            box-shadow: 0 0 0 6px rgba(251, 191, 36, 0.3);
        }
    }
    
    /* Time Slots */
    .time-slots-grid {
        display: grid;
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
        gap: 12px;
        margin-top: 20px;
    }
    
    .time-slot {
        border: 2px solid #e5e7eb;
        border-radius: 10px;
        padding: 15px;
        text-align: center;
        cursor: pointer;
        transition: all 0.3s ease;
        background: white;
    }
    
    .time-slot:hover:not(.disabled) {
        border-color: #dc3545;
        background: #fff5f5;
    }
    
    .time-slot.selected {
        border-color: #dc3545;
        background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
        color: white;
    }
    
    .time-slot.disabled {
        opacity: 0.5;
        cursor: not-allowed;
        background: #f9fafb;
    }
    
    .time-label {
        font-size: 16px;
        font-weight: 600;
        display: block;
    }
    
    .time-status {
        font-size: 11px;
        margin-top: 5px;
        display: block;
    }
    
    /* Action Buttons */
    .form-actions {
        display: flex;
        justify-content: space-between;
        gap: 15px;
        margin-top: 30px;
        padding-top: 25px;
        border-top: 2px solid #f3f4f6;
    }
    
    .btn {
        padding: 14px 32px;
        border-radius: 10px;
        font-size: 16px;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.3s ease;
        border: none;
        display: inline-flex;
        align-items: center;
        gap: 8px;
    }
    
    .btn-back {
        background: #f3f4f6;
        color: #374151;
    }
    
    .btn-back:hover {
        background: #e5e7eb;
    }
    
    .btn-next {
        background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
        color: white;
        margin-left: auto;
    }
    
    .btn-next:hover {
        transform: translateY(-2px);
        box-shadow: 0 4px 12px rgba(220, 53, 69, 0.3);
    }
    
    .btn-next:disabled {
        background: #9ca3af;
        cursor: not-allowed;
        transform: none;
    }
    
    /* Summary Card */
    .summary-card {
        background: linear-gradient(135deg, #f3f4f6 0%, #e5e7eb 100%);
        border-radius: 12px;
        padding: 20px;
        margin-top: 20px;
    }
    
    .summary-title {
        font-size: 18px;
        font-weight: 700;
        color: #1a1a1a;
        margin-bottom: 15px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .summary-row {
        display: flex;
        justify-content: space-between;
        padding: 12px 0;
        border-bottom: 1px solid #d1d5db;
    }
    
    .summary-row:last-child {
        border-bottom: none;
    }
    
    .summary-label {
        font-size: 14px;
        color: #6b7280;
    }
    
    .summary-value {
        font-size: 14px;
        font-weight: 600;
        color: #1a1a1a;
    }
    
    /* Responsive */
    @media (max-width: 768px) {
        .form-row {
            grid-template-columns: 1fr;
        }
        
        .progress-steps {
            flex-wrap: wrap;
        }
        
        .time-slots-grid {
            grid-template-columns: repeat(2, 1fr);
        }
        
        .form-actions {
            flex-direction: column;
        }
        
        .btn-next {
            margin-left: 0;
        }

        .otp-box {
            width: 45px;
            height: 45px;
            font-size: 20px;
        }
    }
    
    /* Helper Text */
    .help-text {
        font-size: 13px;
        color: #6b7280;
        margin-top: 6px;
        display: block;
    }
    
    /* Date Picker Custom */
    .flatpickr-input {
        padding-left: 45px !important;
    }
    
    /* Loading Spinner */
    .loading-spinner {
        display: inline-block;
        width: 16px;
        height: 16px;
        border: 2px solid #ffffff;
        border-radius: 50%;
        border-top-color: transparent;
        animation: spinner 0.6s linear infinite;
    }
    
    @keyframes spinner {
        to { transform: rotate(360deg); }
    }
    
    /* Alert Messages */
    .alert {
        padding: 12px 16px;
        border-radius: 8px;
        margin-bottom: 15px;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    
    .alert-success {
        background: #d1fae5;
        color: #065f46;
        border: 1px solid #10b981;
    }
    
    .alert-error {
        background: #fee2e2;
        color: #991b1b;
        border: 1px solid #dc2626;
    }
    
    .alert-info {
        background: #dbeafe;
        color: #1e40af;
        border: 1px solid #3b82f6;
    }

    .alert-link {
        color: inherit;
        text-decoration: underline;
        font-weight: 700;
        margin-left: 5px;
    }

    .alert-link:hover {
        opacity: 0.8;
    }