.premium-card {
        background: rgba(255, 255, 255, 0.95);
        border-radius: 1.25rem;
        padding: 20px;
        text-align: center;
        border: 1px solid rgba(0,0,0,0.08);
        box-shadow: 0 8px 25px rgba(0,0,0,0.08);
        transition: all 0.35s ease;
        backdrop-filter: blur(6px);
    }
    .premium-card:hover {
        transform: translateY(-6px);
        box-shadow: 0 15px 35px rgba(0,150,255,0.18);
    }
    .icon-box {
        width: 75px;
        height: 75px;
        margin: 0 auto 10px;
        border-radius: 50%;
        background: linear-gradient(135deg, #e0f2fe, #bae6fd);
        display: flex;
        align-items: center;
        justify-content: center;
        box-shadow: inset 0 0 12px rgba(0,0,0,0.05);
    }
    .premium-card .title {
        font-size: 1rem;
        font-weight: 600;
        color: #374151;
        letter-spacing: 0.3px;
    }
    /* Swiper better responsive spacing */
    .catSwiper .swiper-slide {
        width: 150px;
    }
    @media (max-width: 480px) {
        .catSwiper .swiper-slide {
            width: 120px !important;
        }
        .premium-card {
            padding: 16px;
        }
    }

        .book-card {
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .book-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        }
        .category-item {
            transition: all 0.3s ease;
        }
        .category-item:hover {
            background-color: #7dd3fc;
            color: white;
        }
        .dropdown-menu {
            opacity: 0;
            visibility: hidden;
            transform: translateY(10px);
            transition: all 0.3s ease;
            z-index: 40;
        }
        .dropdown-active .dropdown-menu {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .swiper-button-next, .swiper-button-prev {
            color: #0ea5e9;
            background: rgba(255, 255, 255, 0.9);
            width: 40px;
            height: 40px;
            border-radius: 50%;
            box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
        }
        .swiper-button-next:after, .swiper-button-prev:after {
            font-size: 18px;
        }
        .nav-container {
            z-index: 50;
        }
        .swiper-container {
            transition: opacity 0.3s ease;
        }
        .swiper-hidden {
            opacity: 0;
            height: 0;
            overflow: hidden;
        }
        
        /* Mobile Menu Styles */
        .mobile-menu {
            transform: translateX(-100%);
            transition: transform 0.3s ease;
            z-index: 60;
        }
        .mobile-menu.active {
            transform: translateX(0);
        }
        .mobile-overlay {
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 55;
        }
        .mobile-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .hamburger-line {
            transition: all 0.3s ease;
        }
        .hamburger.active .hamburger-line:nth-child(1) {
            transform: rotate(45deg) translate(6px, 6px);
        }
        .hamburger.active .hamburger-line:nth-child(2) {
            opacity: 0;
        }
        .hamburger.active .hamburger-line:nth-child(3) {
            transform: rotate(-45deg) translate(6px, -6px);
        }
        
        /* Search Results Styles */
        .search-results-container {
            background: white;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
            margin-top: 1rem;
        }
        
        .search-results-count {
            color: #64748b;
            font-size: 0.875rem;
            padding: 1rem 1.5rem;
            border-bottom: 1px solid #e2e8f0;
        }
        
        .no-results {
            text-align: center;
            padding: 3rem 2rem;
        }
        
        .no-results-icon {
            font-size: 3rem;
            color: #cbd5e1;
            margin-bottom: 1rem;
        }
        
        /* Wishlist Styles */
        .wishlist-btn {
            transition: all 0.3s ease;
        }
        .wishlist-btn.active {
            color: #ef4444;
        }
        .wishlist-btn:hover {
            transform: scale(1.1);
        }
        
        .wishlist-sidebar, .cart-sidebar {
            transform: translateX(100%);
            transition: transform 0.3s ease;
            z-index: 100;
        }
        .wishlist-sidebar.active, .cart-sidebar.active {
            transform: translateX(0);
        }
        
        .wishlist-overlay, .cart-overlay {
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
            z-index: 90;
        }
        .wishlist-overlay.active, .cart-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* Popup Styles */
        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.7);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 1000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s ease;
        }
        .popup-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        .popup-content {
            background: white;
            border-radius: 16px;
            padding: 2rem;
            max-width: 400px;
            width: 90%;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            transform: scale(0.9);
            transition: transform 0.3s ease;
            position: relative;
        }
        .popup-overlay.active .popup-content {
            transform: scale(1);
        }
        
        /* Heart beat animation */
        @keyframes heartBeat {
            0% { transform: scale(1); }
            25% { transform: scale(1.3); }
            50% { transform: scale(1); }
            75% { transform: scale(1.3); }
            100% { transform: scale(1); }
        }
        .heart-beat {
            animation: heartBeat 0.6s ease-in-out;
        }