.dental-popup {
            display: flex;
            align-items: center;
            justify-content: center;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background-color: rgba(0, 0, 0, 0.6);
            z-index: 99999;
            animation: fadeIn 0.3s ease-in;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
            }
            to {
                opacity: 1;
            }
        }

        .popup-content {
            background: white;
            border-radius: 12px;
            padding: 30px 10px;
            max-width: 90%;
            width: 1000px;
            box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
            animation: slideUp 0.4s ease-out;
        }

        @keyframes slideUp {
            from {
                transform: translateY(30px);
                opacity: 0;
            }
            to {
                transform: translateY(0);
                opacity: 1;
            }
        }

        .popup-header {
            text-align: center;
            margin-bottom: 15px;
        }

        .popup-header h2 {
            color: #2c3e50;
            font-size: 28px;
            margin-bottom: 8px;
        }

        .popup-header p {
            color: #7f8c8d;
            font-size: 14px;
        }

        .cards-container {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 5px;
        }

        .card {
            background: #f9f9f9;
            border-radius: 8px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
            cursor: pointer;
        }

        .card:hover {
            transform: translateY(-5px);
            box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
        }

        .card-image {
            width: 100%;
            height: auto;
            object-fit: cover;
            display: block;
        }

        .card-body {
            padding: 15px;
            text-align: center;
        }

        .card-title {
            color: #2c3e50;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 5px;
        }

        .card-text {
            color: #7f8c8d;
            font-size: 13px;
        }

        .popup-footer {
            display: flex;
            gap: 12px;
            justify-content: center;
        }

        .btn {
            padding: 10px 25px;
            border: none;
            border-radius: 6px;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .btn-primary {
            background-color: #3498db;
            color: white;
        }

        .btn-primary:hover {
            background-color: #2980b9;
        }

        .btn-secondary {
            background-color: #ecf0f1;
            color: #2c3e50;
        }

        .btn-secondary:hover {
            background-color: #d5dbdb;
        }

        .close-btn {
            position: absolute;
            top: 20px;
            right: 25px;
            background: none;
            border: none;
            font-size: 28px;
            color: #7f8c8d;
            cursor: pointer;
            transition: color 0.3s ease;
        }

        .close-btn:hover {
            color: #2c3e50;
        }

        /* Tablet */
        @media (max-width: 768px) {
            .popup-content {
                padding: 30px 20px;
                width: 95%;
            }

            .popup-header h2 {
                font-size: 22px;
            }

            .cards-container {
                grid-template-columns: repeat(2, 1fr);
                gap: 15px;
            }

            .card-image {
                height: 150px;
            }

            .popup-footer {
                flex-wrap: wrap;
            }

            .btn {
                flex: 1;
                min-width: 120px;
            }
        }

        /* Mobile */
        @media (max-width: 480px) {
            .popup-content {
                padding: 20px 15px;
                width: 95%;
                border-radius: 8px;
            }

            .popup-header {
                margin-bottom: 20px;
            }

            .popup-header h2 {
                font-size: 18px;
            }

            .popup-header p {
                font-size: 12px;
            }

            .cards-container {
                grid-template-columns: 1fr;
                gap: 12px;
            }

            .card-image {
                height: auto;
                padding: 20px;
            }

            .card-body {
                padding: 12px;
            }

            .card-title {
                font-size: 14px;
            }

            .card-text {
                font-size: 12px;
            }

            .btn {
                padding: 8px 20px;
                font-size: 12px;
            }

            .close-btn {
                font-size: 24px;
            }
        }