/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Primary Colors */
    --primary-color: #ddb033;
    --primary-dark: #b88d1a;
    --primary-light: #f4d47a;
    
    /* Secondary Colors */
    --secondary-color: #1a3d65;
    --secondary-dark: #0f2a4a;
    --secondary-light: #2c5a8f;
    
    /* Neutral Colors */
    --dark-color: #222222;
    --light-color: #f8f9fa;
    --gray-color: #6c757d;
    --gray-light: #e9ecef;
    
    /* Typography */
    --font-arabic: 'Cairo', sans-serif;
    --font-heading: 'Tajawal', sans-serif;
    
    /* Spacing */
    --section-padding: 5rem 0;
    --container-padding: 0 1.5rem;
    
    /* Border Radius */
    --border-radius: 12px;
    --border-radius-sm: 6px;
    
    /* Box Shadow */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-arabic);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    direction: rtl;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--container-padding);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    right: 50%;
    transform: translateX(50%);
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: var(--border-radius);
    font-family: var(--font-heading);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: var(--secondary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

.loader {
    width: 50px;
    height: 50px;
    border: 3px solid var(--gray-light);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Header & Navigation */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 60px;
    width: auto;
    transition: var(--transition);
}

.logo:hover img {
    transform: scale(1.05);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

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

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    right: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.dropdown {
    position: relative;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: white;
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-sm);
    padding: 1rem 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    list-style: none;
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu li a {
    display: block;
    padding: 0.5rem 1.5rem;
    color: var(--dark-color);
    text-decoration: none;
    transition: var(--transition);
}

.dropdown-menu li a:hover {
    background-color: var(--gray-light);
    color: var(--primary-color);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.cart-btn {
    position: relative;
    color: var(--dark-color);
    font-size: 1.2rem;
    text-decoration: none;
}


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

.social-icon {
    color: var(--gray-color);
    transition: var(--transition);
}

.social-icon:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    transition: var(--transition);
}

 @media (max-width: 768px) {
    .nav-actions {
        display: none !important; 
    }
} 


/* Hero Slider */
.hero-slider {
    position: relative;
    height: 100vh;
    margin-top: 80px;
    overflow: hidden;
}

.hero-slider .swiper {
    width: 100%;
    height: 100%;
}

.hero-slider .swiper-slide {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
}

/* خلفيات مختلفة لكل سلايد */
.slide-1 {
    background: linear-gradient(135deg, rgba(26, 61, 101, 0.9), rgba(221, 176, 51, 0.9)),
                url('../assets/images/واجهة-الموقع-2-scaled\ \(1\).jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-2 {
    background: linear-gradient(135deg, rgba(221, 176, 51, 0.9), rgba(26, 61, 101, 0.9)),
                url('../assets/images/واجهة-الموقع-2-scaled\ \(1\).jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.slide-3 {
    background: linear-gradient(135deg, rgba(44, 90, 160, 0.9), rgba(221, 176, 51, 0.9)),
                url('../assets/images/gallary.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}



/* إذا لم تكن الصور موجودة، استخدم الألوان فقط */
/* .slide-1 {
    background: linear-gradient(135deg, #1a3d65, #ddb033);
}

.slide-2 {
    background: linear-gradient(135deg, #ddb033, #1a3d65);
}

.slide-3 {
    background: linear-gradient(135deg, #2c5aa0, #ddb033);
}

.slide-4 {
    background: linear-gradient(135deg, #1a3d65, #2c5aa0);
}
*/
.slide-overlay {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

.hero-slider .container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    color: white;
    padding: 2rem;
} 

/* محتوى السلايد */
.slide-content {
    max-width: 600px;
}

.slide-title {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    line-height: 1.2;
}

.slide-title .highlight {
    color: var(--primary-light);
}

.slide-subtitle {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
}

.slide-description {
    font-size: 1.2rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 500px;
}

.slide-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.slide-buttons .btn {
    padding: 14px 35px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.slide-buttons .btn-primary {
    background: var(--primary-color);
    color: white;
    border: 2px solid var(--primary-color);
}

.slide-buttons .btn-primary:hover {
    background: transparent;
    color: var(--primary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.slide-buttons .btn-secondary {
    background: transparent;
    color: white;
    border: 2px solid white;
}

.slide-buttons .btn-secondary:hover {
    background: white;
    color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* صورة السلايد */
.slide-image {
    text-align: left;
    animation: float 6s ease-in-out infinite;
}

.slide-image img {
    max-width: 60%;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    transform-style: preserve-3d;
    transition: transform 0.5s ease;
}

.slide-image img:hover {
    transform: rotateY(10deg) rotateX(5deg);
}

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    33% { transform: translateY(-20px) rotate(1deg); }
    66% { transform: translateY(10px) rotate(-1deg); }
}

/* عناصر التحكم في السلايدر */
.swiper-button-next,
.swiper-button-prev {
    color: white;
    background: rgba(255, 255, 255, 0.2);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.swiper-button-next:after,
.swiper-button-prev:after {
    font-size: 1.5rem;
    font-weight: bold;
}

.swiper-button-next:hover,
.swiper-button-prev:hover {
    background: var(--primary-color);
    transform: scale(1.1);
}

.swiper-button-next {
    left: 30px;
    right: auto;
}

.swiper-button-prev {
    right: 30px;
    left: auto;
}

/* الترقيم (Pagination) */
.swiper-pagination {
    bottom: 30px !important;
}

.swiper-pagination-bullet {
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.5);
    opacity: 1;
    transition: all 0.3s ease;
}

.swiper-pagination-bullet-active {
    background: var(--primary-color);
    transform: scale(1.3);
}

/* زر التمرير للأسفل */
.scroll-down {
    position: absolute;
    bottom: 80px;
    right: 50%;
    transform: translateX(50%);
    z-index: 10;
    animation: bounce 2s infinite;
}

.scroll-down a {
    color: white;
    font-size: 1.8rem;
    background: rgba(255, 255, 255, 0.1);
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.scroll-down a:hover {
    background: var(--primary-color);
    transform: translateY(5px);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(50%) translateY(0);
    }
    40% {
        transform: translateX(50%) translateY(-10px);
    }
    60% {
        transform: translateX(50%) translateY(-5px);
    }
}

/* تأثيرات الظهور */
.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease 0.3s forwards;
    opacity: 0;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease 0.6s forwards;
    opacity: 0;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease 0.9s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-slider .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }
    
    .slide-content {
        max-width: 100%;
        margin-bottom: 2rem;
    }
    
    .slide-title {
        font-size: 2.8rem;
    }
    
    .slide-subtitle {
        font-size: 1.6rem;
    }
    
    .slide-buttons {
        justify-content: center;
    }
    
    .slide-image {
        text-align: center;
        max-width: 500px;
        margin: 0 auto;
    }
    
    .swiper-button-next,
    .swiper-button-prev {
        display: none;
    }
}

@media (max-width: 768px) {
    .slide-title {
        font-size: 2.2rem;
    }
    
    .slide-subtitle {
        font-size: 1.4rem;
    }
    
    .slide-description {
        font-size: 1.1rem;
    }
    
    .slide-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .slide-buttons .btn {
        width: 100%;
        max-width: 250px;
    }
}

@media (max-width: 576px) {
    .hero-slider {
        height: 90vh;
    }
    
    .slide-title {
        font-size: 1.8rem;
    }
    
    .slide-subtitle {
        font-size: 1.2rem;
    }
    
    .slide-image img {
        max-width: 90%;
    }
}

/* Books Section */
.books-section {
    padding: var(--section-padding);
    background-color: white;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.book-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.book-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.book-image {
    position: relative;
    height: 250px;
    overflow: hidden;
}

.book-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    transition: transform 0.5s ease;
}

.book-card:hover .book-image img {
    transform: scale(1.05);
}

.book-badge {
    position: absolute;
    top: 15px;
    right: 15px;
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
}

.book-content {
    padding: 1.5rem;
}

.book-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.book-author {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1rem;
}

.book-description {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.book-features {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.book-features span {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.book-features i {
    color: var(--primary-color);
}

.book-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

/* Articles Section */
.articles-section {
    padding: var(--section-padding);
    background-color: var(--light-color);
}

.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.article-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.article-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.article-image {
    height: 200px;
    overflow: hidden;
}

.article-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.article-card:hover .article-image img {
    transform: scale(1.05);
}

.article-content {
    padding: 1.5rem;
}

.article-title {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.article-title a {
    color: var(--dark-color);
    text-decoration: none;
    transition: var(--transition);
}

.article-title a:hover {
    color: var(--primary-color);
}

.article-meta {
    display: flex;
    gap: 1rem;
    color: var(--gray-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.article-excerpt {
    color: var(--gray-color);
    margin-bottom: 1rem;
    font-size: 0.95rem;
}

.read-more {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.text-center {
    text-align: center;
}

/* Reviews Section */
.reviews-section {
    padding: var(--section-padding);
    background-color: white;
}

.reviews-slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.reviews-container {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    scrollbar-width: none;
    -ms-overflow-style: none;
    padding: 1rem 0;
    gap: 2rem;
}

.reviews-container::-webkit-scrollbar {
    display: none;
}

.review-card {
    flex: 0 0 calc(33.333% - 1.33rem);
    min-width: 300px;
    background: var(--light-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.reviewer-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.reviewer-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

.reviewer-details h4 {
    margin-bottom: 0.25rem;
}

.reviewer-role {
    color: var(--gray-color);
    font-size: 0.9rem;
}

.review-stars {
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.review-text {
    color: var(--gray-color);
    font-style: italic;
    line-height: 1.8;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    z-index: 10;
}

.slider-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

.prev-btn {
    right: -20px;
}

.next-btn {
    left: -20px;
}

/* About Section */
.about-section {
    padding: var(--section-padding);
    background: linear-gradient(135deg, var(--light-color) 0%, #e3f2fd 100%);
}

.about-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--gray-color);
    margin-bottom: 2rem;
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.stat-label {
    color: var(--gray-color);
    font-weight: 600;
}

.about-image img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact-section {
    padding: var(--section-padding);
    background-color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.info-item i {
    color: var(--primary-color);
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.info-item h3 {
    margin-bottom: 0.25rem;
    font-size: 1.2rem;
}

.info-item p {
    color: var(--gray-color);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-arabic);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(221, 176, 51, 0.1);
}

/* Footer */
.footer {
    background-color: var(--secondary-color);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    color: white;
    margin-bottom: 1.5rem;
    font-size: 1.3rem;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-section ul li i {
    margin-left: 0.5rem;
    color: var(--primary-color);
}

.footer-section .social-icons i {
    color: var(--primary-color);
}

.newsletter-form {
    display: flex;
    margin-top: 1rem;
}

.newsletter-form input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    border-radius: var(--border-radius-sm) 0 0 var(--border-radius-sm);
    font-family: var(--font-arabic);
}

.newsletter-form button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0 20px;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
    cursor: pointer;
    transition: var(--transition);
}

.newsletter-form button:hover {
    background-color: var(--primary-dark);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
    margin-bottom: 0.5rem;
}



/* Back to Top */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    width: 50px;
    height: 50px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    background-color: var(--primary-dark);
    transform: translateY(-5px);
}

/* Animations */
.animate-fade-in {
    animation: fadeIn 1s ease forwards;
}

.animate-fade-in-delay {
    animation: fadeIn 1s ease 0.3s forwards;
    opacity: 0;
}

.animate-fade-in-delay-2 {
    animation: fadeIn 1s ease 0.6s forwards;
    opacity: 0;
}

.animate-fade-in-delay-3 {
    animation: fadeIn 1s ease 0.9s forwards;
    opacity: 0;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero .container,
    .about-section .container,
    .contact-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .review-card {
        flex: 0 0 calc(50% - 1rem);
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        flex-direction: column;
        background-color: white;
        width: 100%;
        height: calc(100vh - 80px);
        padding: 2rem;
        transition: var(--transition);
        box-shadow: var(--shadow-lg);
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        padding-right: 1rem;
        display: none;
    }
    
    .dropdown.active .dropdown-menu {
        display: block;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .review-card {
        flex: 0 0 100%;
    }
    
    .cart-sidebar {
        width: 100%;
        left: -100%;
    }
}

@media (max-width: 576px) {
    .hero-buttons {
        flex-direction: column;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
}