.brand-section {
            width: 100%;
            max-width: 1400px;
            padding: 40px 20px;
        }

        .mobile-hint {
            display: none;
            text-align: center;
            color: #999;
            font-size: 14px;
            margin-bottom: 20px;
            padding: 8px 16px;
            background: rgba(248, 249, 250, 0.3);
            border-radius: 20px;
            border: 1px solid rgba(221, 221, 221, 0.3);
            max-width: 200px;
            margin-left: auto;
            margin-right: auto;
            opacity: 0.7;
            animation: subtlePulse 3s ease-in-out infinite;
        }

        @keyframes subtlePulse {
            0%, 100% { 
                opacity: 0.7; 
                transform: scale(1);
            }
            50% { 
                opacity: 0.9; 
                transform: scale(1.02);
            }
        }

        .cards-container {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .card {
            position: relative;
            width: 300px;
            height: 300px;
            border-radius: 20px;
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
            display: flex;
            flex-direction: row;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            overflow: hidden;
            z-index: 1;
        }
        
        #oneplus{
            background-color: red;
        }
                #oneplus:hover{
            background-color: white;
        }

                #apple{
            background-color: rgb(134, 131, 131);
        }
                #apple:hover{
            background-color: white;
        }

        .card:hover {
            transform: translateY(-10px) scale(1.02);
            box-shadow: 0 30px 80px rgba(0, 0, 0, 0.3);
            width: 600px;
            background:white;
            z-index: 10;
            justify-content: flex-start;
        }

        .logo-container {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 300px;
            height: 100%;
            transition: all 0.4s ease;
            flex-shrink: 0;
        }

        .card:hover .logo-container {
            width: 200px;
            justify-content: center;
            padding-left: 20px;
        }

        .logo {
            width: 120px;
            height: 120px;
            transition: all 0.4s ease;
            filter: grayscale(100%) brightness(100);
            object-fit: contain;
            border-radius: 12px;
        }

        .card:hover .logo {
            filter: grayscale(0%) brightness(1);
            transform: scale(0.8);
        }

        .product-list {
            width: 0;
            height: 100%;
            padding: 0;
            opacity: 0;
            transform: translateX(20px);
            transition: all 0.4s ease 0.1s;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .card:hover .product-list {
            width: 400px;
            padding: 30px 30px 30px 20px;
            opacity: 1;
            transform: translateX(0);
        }

        .product-list h3 {
            margin-bottom: 20px;
            font-size: 20px;
            color: #333;
            text-align: center;
            font-weight: bold;
        }

        .product-list ul {
            list-style: none;
            max-height: 240px;
            overflow-y: auto;
            padding-right: 10px;
        }

        .product-list ul::-webkit-scrollbar {
            width: 4px;
        }

        .product-list ul::-webkit-scrollbar-track {
            background: #f1f1f1;
            border-radius: 10px;
        }

        .product-list ul::-webkit-scrollbar-thumb {
            background: #ccc;
            border-radius: 10px;
        }

        .product-list ul::-webkit-scrollbar-thumb:hover {
            background: #999;
        }

        .product-list li {
            padding: 10px 15px;
            margin: 4px 0;
            background: #f8f9fa;
            border-radius: 8px;
            color: #666;
            font-size: 14px;
            transition: all 0.2s ease;
            cursor: pointer;
            border-left: 3px solid transparent;
        }

        .product-list li:hover {
            background: #e9ecef;
            color: #333;
            transform: translateX(3px);
        }

        /* Brand-specific accent colors */
        .card[data-brand="apple"]:hover .product-list li:hover {
            border-left-color: #333;
        }

        .card[data-brand="apple"] .product-list h3 {
            color: #333;
        }

        .card[data-brand="oneplus"]:hover .product-list li:hover {
            border-left-color: #eb0029;
        }

        .card[data-brand="oneplus"] .product-list h3 {
            color: #eb0029;
        }

        @media (max-width: 768px) {
            .brand-section {
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                min-height: 100vh;
            }

            .mobile-hint {
                display: block;
            }

            .cards-container {
                flex-direction: column;
                gap: 30px;
                align-items: center;
                justify-content: center;
            }

            .section-title {
                font-size: 2rem;
                margin-bottom: 1rem;
                text-align: center;
            }
            
            .card {
                width: 280px;
                height: 280px;
            }

            .card:hover {
                width: 280px;
                height: 500px;
                flex-direction: column !important;
                justify-content: flex-start !important;
            }

            .logo-container {
                width: 280px;
            }

            .card:hover .logo-container {
                width: 280px !important;
                height: 150px;
                padding-left: 0 !important;
            }

            .card:hover .product-list {
                width: 100% !important;
                padding: 0 30px 30px 30px !important;
                transform: translateY(0) !important;
            }
            
            .logo {
                width: 100px;
                height: 100px;
            }

            .product-list {
                transform: translateY(20px) !important;
            }
        }