.book-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
        }
        .hero-gradient {
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
        }
        .discount-badge {
            position: absolute;
            top: -10px;
            right: -10px;
            background-color: #ef4444;
            color: white;
            border-radius: 50%;
            width: 50px;
            height: 50px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
        }
        .search-box:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.5);
        }
        .cart-item-enter {
            opacity: 0;
            transform: translateX(20px);
        }
        .cart-item-enter-active {
            opacity: 1;
            transform: translateX(0);
            transition: all 300ms ease-in;
        }
        .cart-item-exit {
            opacity: 1;
        }
        .cart-item-exit-active {
            opacity: 0;
            transform: translateX(20px);
            transition: all 300ms ease-in;
        }
        .cart-panel {
            transition: transform 0.3s ease-in-out;
        }