/* Galaxy Theme Variables */
:root {
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --accent-color: #6c5ce7;
    /* Galaxy Purple */
    --accent-hover: #5649c0;
    --border-color: #dfe6e9;
    --card-bg: #ffffff;
    --shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    --header-bg: rgba(255, 255, 255, 0.9);
    --modal-overlay: rgba(0, 0, 0, 0.6);
    --gradient-primary: linear-gradient(135deg, #6c5ce7, #a29bfe);
}

/* Dark Mode (Galaxy Mode) */
body.dark-mode {
    --bg-primary: #0f0c29;
    /* Fallback */
    --bg-secondary: rgba(255, 255, 255, 0.05);
    --text-primary: #dfe6e9;
    --text-secondary: #b2bec3;
    --accent-color: #a29bfe;
    --accent-hover: #8e44ad;
    --border-color: rgba(255, 255, 255, 0.1);
    --card-bg: rgba(30, 30, 50, 0.6);
    /* Glassy */
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    --header-bg: rgba(15, 12, 41, 0.8);
    --modal-overlay: rgba(0, 0, 0, 0.85);
}

/* Global Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Tajawal', 'Cairo', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s, color 0.3s;
    overflow-x: hidden;
    line-height: 1.6;
}

/* Galaxy Background Animation */
body.dark-mode {
    background: linear-gradient(to bottom, #0f0c29, #302b63, #24243e);
    min-height: 100vh;
}

body.dark-mode .stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent url('http://www.script-tutorials.com/demos/360/images/stars.png') repeat top center;
    z-index: -2;
    opacity: 0.8;
}

body.dark-mode .twinkling {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent url('http://www.script-tutorials.com/demos/360/images/twinkling.png') repeat top center;
    z-index: -1;
    animation: move-twink-back 200s linear infinite;
    opacity: 0.4;
}

@keyframes move-twink-back {
    from {
        background-position: 0 0;
    }

    to {
        background-position: -10000px 5000px;
    }
}

/* Animations & Keyframes */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translate3d(0, 40px, 0);
    }

    to {
        opacity: 1;
        transform: translate3d(0, 0, 0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-15px);
    }

    100% {
        transform: translateY(0px);
    }
}

@keyframes pulse-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(108, 92, 231, 0.4);
    }

    70% {
        box-shadow: 0 0 0 10px rgba(108, 92, 231, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(108, 92, 231, 0);
    }
}

/* Scroll Animation Utilities */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.5, 0, 0, 1), transform 0.8s cubic-bezier(0.5, 0, 0, 1);
    will-change: opacity, transform;
}

.animate-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered Delays */
.delay-100 {
    transition-delay: 0.1s;
}

.delay-200 {
    transition-delay: 0.2s;
}

.delay-300 {
    transition-delay: 0.3s;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    background-color: var(--header-bg);
    backdrop-filter: blur(15px);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-color);
    animation: slideDownHeader 0.5s ease-out;
}

@keyframes slideDownHeader {
    from {
        transform: translateY(-100%);
    }

    to {
        transform: translateY(0);
    }
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo {
    height: 45px;
    filter: drop-shadow(0 0 5px rgba(108, 92, 231, 0.5));
    transition: transform 0.3s ease;
}

.logo:hover {
    transform: rotate(5deg) scale(1.05);
}

.site-title {
    font-size: 1.6rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 25px;
}

.nav-link {
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1.05rem;
    transition: color 0.3s;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--accent-color);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 15px;
}

.icon-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    /* Bouncy transition */
    flex-shrink: 0;
}

.icon-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 5px 15px rgba(108, 92, 231, 0.3);
}

.cart-icon-container {
    position: relative;
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: white;
    border-radius: 50%;
    box-shadow: 0 4px 10px rgba(108, 92, 231, 0.3);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    flex-shrink: 0;
}

.cart-icon-container:hover {
    transform: translateY(-3px) scale(1.1);
    box-shadow: 0 8px 20px rgba(108, 92, 231, 0.5);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: #ff7675;
    color: white;
    font-size: 0.75rem;
    font-weight: bold;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--bg-secondary);
    animation: scaleIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.search-bar {
    display: flex;
    align-items: center;
    background: var(--bg-secondary);
    border-radius: 25px;
    padding: 5px 15px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-bar:focus-within {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.15);
    transform: scale(1.02);
}

.search-bar input {
    border: none;
    background: transparent;
    outline: none;
    color: var(--text-primary);
    padding: 5px;
    width: 200px;
    font-family: inherit;
}

.search-bar button {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
}

.search-bar button:hover {
    color: var(--accent-color);
    transform: scale(1.1);
}

.burger-menu {
    display: none;
    background: none;
    border: none;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

/* Special Offer & Slider Section */
.special-offer {
    background: var(--bg-secondary);
    padding: 3rem 0;
    margin-bottom: 3rem;
}

.offer-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    background: var(--gradient-primary);
    border-radius: 20px;
    padding: 40px;
    color: white;
    position: relative;
    overflow: visible;
    box-shadow: 0 20px 40px rgba(108, 92, 231, 0.2);
    animation: fadeInUp 0.8s ease-out;
}

.offer-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjAiIGhlaWdodD0iMjAiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyI+PGNpcmNsZSBjeD0iMiIgY3k9IjIiIHI9IjIiIGZpbGw9InJnYmEoMjU1LDI1NSwyNTUsMC4xKSIvPjwvc3ZnPg==');
    opacity: 0.3;
}

.offer-banner {
    flex: 1;
    z-index: 2;
    text-align: right;
    order: 1;
}

.offer-banner h2 {
    font-size: 3rem;
    margin-bottom: 15px;
    font-weight: 800;
    animation: fadeInUp 0.8s ease-out 0.2s backwards;
}

.offer-banner p {
    animation: fadeInUp 0.8s ease-out 0.4s backwards;
}

.price-highlight {
    font-size: 2rem;
    font-weight: 800;
    color: #ffeaa7;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.old-price {
    text-decoration: line-through;
    color: rgba(255, 255, 255, 0.7);
    margin-right: 10px;
    font-size: 1.4rem;
}

.delivery-note {
    margin-top: 10px;
    outline: none;
    padding: 10px;
    font-size: 1rem;
    font-family: inherit;
}

.offer-slider {
    flex: 1;
    max-width: 400px;
    height: 400px;
    position: relative;
    z-index: 2;
    order: 2;
    animation: float 6s ease-in-out infinite;
}

.slider-container {
    width: 100%;
    height: 100%;
    position: relative;
}

.slide {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slide.active {
    opacity: 1;
}

.slide img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.3));
    transform: scale(0.9);
    transition: transform 5s ease;
}

.slide.active img {
    transform: scale(1);
}

/* Categories */
.categories {
    margin-bottom: 4rem;
}

.section-title {
    text-align: center;
    margin-bottom: 2.5rem;
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--text-primary);
    position: relative;
    display: inline-block;
    width: 100%;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--accent-color);
    margin: 10px auto 0;
    border-radius: 2px;
    transition: width 0.3s ease;
}

.section-title:hover::after {
    width: 100px;
}

.category-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 20px;
}

.cat-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 120px;
    height: 120px;
    padding: 15px;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
    color: var(--text-primary);
    border-radius: 15px;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: var(--shadow);
    gap: 10px;
}

.cat-btn i {
    font-size: 2rem;
    color: var(--accent-color);
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cat-btn span {
    font-weight: 600;
    font-size: 1rem;
}

.cat-btn:hover,
.cat-btn.active {
    transform: translateY(-10px) scale(1.05);
    border-color: var(--accent-color);
    box-shadow: 0 15px 30px rgba(108, 92, 231, 0.2);
}

.cat-btn:hover i,
.cat-btn.active i {
    transform: scale(1.2) rotate(5deg);
}

/* Series Section */
.series-section {
    margin-bottom: 4rem;
    background: rgba(108, 92, 231, 0.05);
    padding: 3rem 0;
}

.series-grid {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    padding: 20px 10px;
    scrollbar-width: thin;
    scrollbar-color: var(--accent-color) transparent;
}

.series-grid::-webkit-scrollbar {
    height: 8px;
}

.series-grid::-webkit-scrollbar-thumb {
    background-color: var(--accent-color);
    border-radius: 4px;
}

.series-grid .product-card {
    min-width: 160px;
    width: 160px;
    flex-shrink: 0;
}

.series-grid .product-image-container {
    height: 240px;
    /* Taller for series */
    padding-top: 0;
}

.series-grid .product-image {
    position: relative;
    height: 100%;
}

/* Products Grid */
.products-section {
    padding-bottom: 5rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 25px;
    padding: 0 1rem;
    max-width: 1300px;
    margin: 0 auto;
}

.product-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: relative;
}

.product-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.product-image-container {
    position: relative;
    padding-top: 100%;
    /* 1:1 Aspect Ratio */
    overflow: hidden;
    cursor: pointer;
    background: #f1f1f1;
    border-radius: 15px;
}

.product-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.product-card:hover .product-image {
    transform: scale(1.12);
}

.product-info {
    padding: 1.2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.product-title {
    font-size: 1.1rem;
    margin-bottom: 5px;
    font-weight: 700;
    line-height: 1.4;
}

.product-author {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.product-price {
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 15px;
}

.add-to-cart-btn {
    width: 100%;
    padding: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

.add-to-cart-btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.add-to-cart-btn:hover::after {
    width: 300px;
    height: 300px;
}

.add-to-cart-btn:hover {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(108, 92, 231, 0.2);
}

/* Modals */
.cart-modal,
.checkout-modal,
.book-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: none;
    justify-content: flex-end;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cart-modal.active,
.checkout-modal.active,
.book-modal.active {
    opacity: 1;
}

.cart-modal.active,
.checkout-modal.active {
    display: flex;
}

.book-modal.active {
    display: flex;
    justify-content: center;
    align-items: center;
}

.cart-content,
.checkout-content {
    width: 450px;
    max-width: 100%;
    background: var(--bg-secondary);
    height: 100%;
    padding: 25px;
    display: flex;
    flex-direction: column;
    animation: slideInRight 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.2);
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.cart-header,
.checkout-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.cart-header h3,
.checkout-header h3 {
    font-size: 1.5rem;
    color: var(--accent-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.close-cart,
.close-checkout {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color 0.3s, transform 0.3s;
}

.close-cart:hover,
.close-checkout:hover {
    color: #e74c3c;
    transform: rotate(90deg);
}

/* Cart Items */
.cart-items {
    flex-grow: 1;
    overflow-y: auto;
    padding-right: 5px;
}

.cart-item {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    background: var(--card-bg);
    padding: 10px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.4s ease-out;
}

.cart-item img {
    width: 70px;
    height: 90px;
    object-fit: cover;
    border-radius: 8px;
}

.cart-item-details {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.cart-item-title {
    font-weight: 700;
    margin-bottom: 5px;
}

.cart-item-price {
    color: var(--accent-color);
    font-weight: 600;
}

.remove-item {
    color: #ff7675;
    background: rgba(255, 118, 117, 0.1);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    align-self: center;
    transition: all 0.3s;
}

.remove-item:hover {
    background: #ff7675;
    color: white;
    transform: scale(1.1);
}

/* Checkout Form */
.form-row {
    display: flex;
    gap: 15px;
}

.form-group {
    margin-bottom: 20px;
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.3s, box-shadow 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(108, 92, 231, 0.1);
}

.payment-options {
    display: flex;
    gap: 15px;
}

.payment-option {
    flex: 1;
    cursor: pointer;
}

.payment-option input {
    display: none;
}

.payment-card {
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: var(--text-secondary);
}

.payment-card i {
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.payment-option:hover .payment-card {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.payment-option:hover .payment-card i {
    transform: scale(1.1);
}

.payment-option input:checked+.payment-card {
    border-color: var(--accent-color);
    background: rgba(108, 92, 231, 0.05);
    color: var(--accent-color);
}

.checkout-btn,
.confirm-order-btn {
    background: var(--gradient-primary);
    color: white;
    padding: 15px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 700;
    box-shadow: 0 5px 15px rgba(108, 92, 231, 0.3);
    transition: transform 0.3s, box-shadow 0.3s;
    border: none;
    cursor: pointer;
    animation: pulse-glow 2s infinite;
}

.checkout-btn:hover,
.confirm-order-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(108, 92, 231, 0.5);
}

/* Book Details Modal */
.book-modal-content {
    background: var(--bg-secondary);
    width: 900px;
    max-width: 95%;
    border-radius: 20px;
    padding: 0;
    display: flex;
    overflow: hidden;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
    animation: scaleIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.book-details-container {
    display: flex;
    width: 100%;
}

.book-image-full {
    flex: 1;
    background: #f1f1f1;
}

.book-image-full img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.book-info-full {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.book-info-full h2 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.modal-author {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.modal-price {
    font-size: 2rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 20px;
}

.modal-desc {
    line-height: 1.8;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.close-book-modal {
    position: absolute;
    top: 20px;
    left: 20px;
    background: white;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    z-index: 10;
    border: none;
    cursor: pointer;
    transition: transform 0.3s;
}

.close-book-modal:hover {
    transform: rotate(90deg) scale(1.1);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }

    .nav-menu.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--header-bg);
        backdrop-filter: blur(15px);
        padding: 20px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        border-bottom: 1px solid var(--border-color);
        animation: slideDown 0.3s ease;
    }

    .nav-menu.active .nav-list {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }

        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .burger-menu {
        display: block;
    }

    .header-container {
        padding: 0 1rem;
    }

    .offer-container {
        flex-direction: column;
        padding: 20px;
    }

    .offer-banner {
        order: 1;
        text-align: center;
    }

    .offer-slider {
        order: 2;
        width: 100%;
        height: 300px;
        margin-top: 20px;
    }

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

    .product-image-container {
        padding-top: 100%;
        /* 1:1 on mobile too */
    }

    .book-details-container {
        flex-direction: column;
    }

    .book-image-full {
        height: 300px;
    }

    .book-info-full {
        padding: 20px;
    }

    .cart-content,
    .checkout-content {
        width: 100%;
    }

    .cat-btn {
        width: 100px;
        height: 100px;
        padding: 10px;
    }

    .cat-btn i {
        font-size: 1.5rem;
    }

    .cat-btn span {
        font-size: 0.9rem;
    }

    /* Mobile Header Fixes */
    .search-bar {
        background: transparent;
        border: none;
        padding: 0;
    }

    .search-bar input {
        display: none;
    }

    .search-bar button {
        font-size: 1.2rem;
        color: var(--text-primary);
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);


        .site-title {
            font-size: 1.2rem;
        }

        .logo-container {
            gap: 8px;
        }

        .header-actions {
            gap: 8px;
        }

        .icon-btn,
        .cart-icon-container,
        .search-bar button {
            width: 35px;
            height: 35px;
        }
    }

    @media (max-width: 480px) {
        .site-title {
            font-size: 1rem;
        }

        .products-grid {
            grid-template-columns: repeat(2, 1fr);
            gap: 10px;
        }

        .header-container {
            padding: 0 0.8rem;
        }
    }

}

/* Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.footer-links h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: #e1306c;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-us-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s, transform 0.3s;
}

.contact-us-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {

    .book-details-container {
        flex-direction: column;
    }

    .book-image-full {
        height: 300px;
    }

    .book-info-full {
        padding: 20px;
    }

    .cart-content,
    .checkout-content {
        width: 100%;
    }

    .cat-btn {
        width: 100px;
        height: 100px;
        padding: 10px;
    }

    .cat-btn i {
        font-size: 1.5rem;
    }

    .cat-btn span {
        font-size: 0.9rem;
    }

    /* Mobile Header Fixes */
    .search-bar {
        background: transparent;
        border: none;
        padding: 0;
    }

    .search-bar input {
        display: none;
    }

    .search-bar button {
        font-size: 1.2rem;
        color: var(--text-primary);
        width: 40px;
        height: 40px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: 50%;
        background: var(--bg-secondary);
        border: 1px solid var(--border-color);
    }

    .site-title {
        font-size: 1.2rem;
    }

    .logo-container {
        gap: 8px;
    }

    .header-actions {
        gap: 8px;
    }

    .icon-btn,
    .cart-icon-container,
    .search-bar button {
        width: 35px;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .site-title {
        font-size: 1rem;
    }

    .products-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .header-container {
        padding: 0 0.8rem;
    }
}

/* Footer */
.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 3rem 0 1rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.footer-links h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: #e1306c;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-us-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s, transform 0.3s;
}

.contact-us-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        align-items: center;
    }
}

/* Quantity Selector */
.quantity-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 5px;
    border: 1px solid var(--border-color);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.qty-btn {
    width: 35px;
    height: 35px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover {
    background: var(--accent-color);
    color: white;
}

.quantity-selector input {
    width: 50px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-primary);
    font-family: inherit;
}

/* Fly Animation */
@keyframes flyToCart {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    20% {
        transform: scale(0.5);
        opacity: 0.8;
    }

    100% {
        opacity: 0;
        transform: scale(0.1) translate(var(--tx), var(--ty));
    }
}

.flying-img {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: flyToCart 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.cart-item-qty {
    background: var(--accent-color);
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 5px;
    font-weight: bold;
}

.empty-cart-message {
    text-align: center;
    padding: 40px 20px;
    margin-top: auto;
}

.footer-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.footer-links h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: #e1306c;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-us-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s, transform 0.3s;
}

.contact-us-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        align-items: center;
    }
}

/* Quantity Selector */
.quantity-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 5px;
    border: 1px solid var(--border-color);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.qty-btn {
    width: 35px;
    height: 35px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover {
    background: var(--accent-color);
    color: white;
}

.quantity-selector input {
    width: 50px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-primary);
    font-family: inherit;
}

/* Fly Animation */
@keyframes flyToCart {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    20% {
        transform: scale(0.5);
        opacity: 0.8;
    }

    100% {
        opacity: 0;
        transform: scale(0.1) translate(var(--tx), var(--ty));
    }
}

.flying-img {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: flyToCart 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.cart-item-qty {
    background: var(--accent-color);
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 5px;
    font-weight: bold;
}

.empty-cart-message {
    text-align: center;
    padding: 40px 20px;
    margin-top: auto;
}

.footer-container {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo h2 {
    font-size: 1.8rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.footer-logo p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 1rem;
}

.footer-links h3 {
    font-size: 1.2rem;
    color: var(--text-primary);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    transition: transform 0.3s, box-shadow 0.3s;
    text-decoration: none;
}

.social-icon.facebook {
    background: #1877f2;
}

.social-icon.instagram {
    background: #e1306c;
}

.social-icon:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.contact-us-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-color);
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: background 0.3s, transform 0.3s;
}

.contact-us-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
}

.footer-bottom {
    text-align: center;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        align-items: center;
    }
}

/* Quantity Selector */
.quantity-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    background: var(--bg-primary);
    border-radius: 8px;
    padding: 5px;
    border: 1px solid var(--border-color);
    width: fit-content;
    margin-left: auto;
    margin-right: auto;
}

.qty-btn {
    width: 35px;
    height: 35px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    border-radius: 5px;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.qty-btn:hover {
    background: var(--accent-color);
    color: white;
}

.quantity-selector input {
    width: 50px;
    text-align: center;
    border: none;
    background: transparent;
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-primary);
    font-family: inherit;
}

/* Fly Animation */
@keyframes flyToCart {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    20% {
        transform: scale(0.5);
        opacity: 0.8;
    }

    100% {
        opacity: 0;
        transform: scale(0.1) translate(var(--tx), var(--ty));
    }
}

.flying-img {
    position: fixed;
    z-index: 9999;
    pointer-events: none;
    border-radius: 50%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: flyToCart 1s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

.cart-item-qty {
    background: var(--accent-color);
    color: white;
    font-size: 0.8rem;
    padding: 2px 8px;
    border-radius: 4px;
    margin-left: 5px;
    font-weight: bold;
}

.empty-cart-message {
    text-align: center;
    padding: 40px 20px;
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Order Success Modal */
.order-success-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.order-success-modal.active {
    opacity: 1;
    visibility: visible;
}

.success-content {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    text-align: center;
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    transform: translateY(20px);
    transition: transform 0.3s ease;
}

.order-success-modal.active .success-content {
    transform: translateY(0);
}

.success-icon {
    font-size: 4rem;
    color: #2ecc71;
    margin-bottom: 20px;
    animation: scaleIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

.success-content h2 {
    color: var(--text-color);
    margin-bottom: 10px;
    font-size: 1.8rem;
}

.success-content p {
    color: var(--text-muted);
    margin-bottom: 25px;
}

.order-details-summary {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 25px;
    text-align: right;
}

.order-details-summary h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 10px;
}

.order-info-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.order-items-list {
    margin: 15px 0;
    max-height: 150px;
    overflow-y: auto;
    padding-right: 5px;
}

.order-item-summary {
    display: flex;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.order-total-row {
    display: flex;
    justify-content: space-between;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--accent-color);
}

.close-success-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 12px 40px;
    border-radius: 25px;
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: inherit;
    font-weight: bold;
}

.close-success-btn:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(108, 92, 231, 0.4);
}