/* ============================================
   BookSeva - Premium Bookstore CSS
   Theme: Royal Purple & Gold
   ============================================ */

/* Root Variables */
:root {
    /* Primary Colors */
    --primary-purple: #6B46C1;
    --primary-purple-dark: #553C9A;
    --primary-purple-light: #9F7AEA;
    --gold-accent: #D4AF37;
    --gold-light: #F4E5B2;
    
    /* Neutral Colors */
    --white: #FFFFFF;
    --off-white: #FAFAFA;
    --light-gray: #F7F7F7;
    --gray: #E5E5E5;
    --text-dark: #2D3748;
    --text-light: #718096;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6B46C1 0%, #553C9A 100%);
    --gradient-gold: linear-gradient(135deg, #D4AF37 0%, #FFD700 100%);
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(107, 70, 193, 0.08);
    --shadow-md: 0 4px 16px rgba(107, 70, 193, 0.12);
    --shadow-lg: 0 10px 30px rgba(107, 70, 193, 0.15);
    --shadow-xl: 0 20px 50px rgba(107, 70, 193, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   Reset & Base Styles
   ============================================ */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--off-white);
    overflow-x: hidden;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-base);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-base);
}

/* ============================================
   Navigation Bar
   ============================================ */

.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: var(--transition-base);
}

.navbar.scrolled {
    box-shadow: var(--shadow-md);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 24px;
    font-weight: 600;
}

.logo-img {
    height: 60px;
    width: auto;
    object-fit: contain;
}

.logo-seva {
    color: #c9a227; /* gold accent */
}

.logo i {
    font-size: 2rem;
}

.logo-seva {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}


.stats-section {
    padding: 60px 20px;
    background: #f8f9fc;
}

.stats-container {
    display: flex;
    flex-direction: row;              /* Desktop: Horizontal */
    justify-content: space-between;
    align-items: center;
    gap: 30px;
    max-width: 1100px;
    margin: auto;
}

.stat-box {
    flex: 1;
    min-width: 200px;
    background: var(--gradient-gold);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

/* Mobile View */
@media (max-width: 768px) {
    
    .stats-container {
        flex-direction: column;     /* Mobile: Vertical */
        align-items: center;
    }

    .stat-box {
        width: 90%;                 /* Full width on mobile */
    }

}



.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav-link {
    position: relative;
    font-weight: 500;
    color: var(--text-dark);
    padding: var(--spacing-xs) 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: var(--transition-base);
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.search-btn,
.cart-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    color: var(--text-dark);
}

.search-btn:hover,
.cart-btn:hover {
    background: var(--light-gray);
    color: var(--primary-purple);
}

.cart-btn {
    position: relative;
}

.cart-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 600;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-toggle {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    font-size: 1.2rem;
    color: var(--text-dark);
}

.mobile-toggle:hover {
    background: var(--light-gray);
    color: var(--primary-purple);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    position: relative;
    background: var(--gradient-primary);
    color: var(--white);
    padding: 120px 0 80px;
    margin-top: 72px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><circle cx="50" cy="50" r="2" fill="white" opacity="0.1"/></svg>');
    background-size: 50px 50px;
}

.hero-content {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-text {
    animation: fadeInUp 1s ease;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: var(--gradient-gold);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    line-height: 1.8;
    opacity: 0.95;
    margin-bottom: var(--spacing-xl);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition-base);
}

.btn i {
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--gradient-gold);
    color: var(--primary-purple);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    border: 2px solid var(--white);
    backdrop-filter: blur(10px);
}

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

.hero-stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat-item h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-item p {
    font-size: 0.95rem;
    opacity: 0.9;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
    animation: fadeInRight 1s ease;
}

.hero-image-wrapper {
    width: 400px;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-xl);
    animation: float 6s ease-in-out infinite;
}

.hero-icon {
    font-size: 10rem;
    opacity: 0.9;
}

.hero-wave {
    position: absolute;
    bottom: -2px;
    left: 0;
    right: 0;
    width: 100%;
}

.hero-wave svg {
    display: block;
    width: 100%;
    height: auto;
}

/* ============================================
   Section Headers
   ============================================ */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
}

/* ============================================
   Featured Books Section
   ============================================ */

.featured-books {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.book-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    cursor: pointer;
}

.book-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.book-image {
    position: relative;
    padding: var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--light-gray);
}

.book-cover {
    width: 180px;
    height: 260px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
}

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

.book-cover i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.9);
}

.book-badge {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.book-badge.bestseller {
    background: var(--gradient-gold);
    color: var(--primary-purple);
}

.book-badge.new {
    background: var(--gradient-primary);
    color: var(--white);
}

.book-info {
    padding: var(--spacing-md);
}

.book-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: var(--spacing-xs);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-author {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.book-rating {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-bottom: var(--spacing-md);
}

.book-rating i {
    color: var(--gold-accent);
    font-size: 0.9rem;
}

.book-rating span {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-left: 4px;
}

.book-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.book-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-purple);
}

.btn-view-details {
    padding: 10px 20px;
    background: var(--light-gray);
    color: var(--primary-purple);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
}

.btn-view-details:hover {
    background: var(--gradient-primary);
    color: var(--white);
}

/* ============================================
   Categories Section
   ============================================ */

.categories {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
    text-align: center;
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    font-size: 2.5rem;
    color: var(--white);
    transition: var(--transition-base);
}

.category-card:hover .category-icon {
    transform: scale(1.1) rotate(5deg);
}

.category-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-sm);
}

.category-card p {
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.category-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-purple);
    font-weight: 600;
    transition: var(--transition-base);
}

.category-link:hover {
    gap: var(--spacing-sm);
}

/* ============================================
   About Section
   ============================================ */

.about {
    padding: var(--spacing-2xl) 0;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.about-image-wrapper {
    width: 400px;
    height: 400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.about-image-wrapper i {
    font-size: 10rem;
    color: var(--white);
    opacity: 0.9;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-dark);
}

.feature-item i {
    color: var(--gold-accent);
    font-size: 1.3rem;
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    padding: var(--spacing-2xl) 0;
    background: var(--light-gray);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-2xl);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-card {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-base);
}

.info-card:hover {
    box-shadow: var(--shadow-md);
}

.info-icon {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
}

.info-card h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-xs);
}

.info-card p {
    color: var(--text-light);
    line-height: 1.8;
}

.social-links {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.social-links h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-purple);
    margin-bottom: var(--spacing-md);
}

.social-icons {
    display: flex;
    gap: var(--spacing-sm);
}

.social-icons a {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--light-gray);
    border-radius: var(--radius-sm);
    color: var(--primary-purple);
    font-size: 1.2rem;
    transition: var(--transition-base);
}

.social-icons a:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--text-dark);
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    border: 2px solid var(--gray);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition-base);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-purple);
    box-shadow: 0 0 0 3px rgba(107, 70, 193, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.btn-submit {
    margin-top: var(--spacing-sm);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1.5fr;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo i {
    font-size: 2rem;
    color: var(--gold-accent);
}

.footer-description {
    line-height: 1.8;
    opacity: 0.8;
    margin-bottom: var(--spacing-md);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    transition: var(--transition-base);
}

.footer-social a:hover {
    background: var(--gradient-gold);
    color: var(--primary-purple);
    transform: translateY(-3px);
}

.footer-section h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    opacity: 0.8;
    transition: var(--transition-base);
}

.footer-links a:hover {
    opacity: 1;
    color: var(--gold-accent);
    padding-left: var(--spacing-xs);
}

.newsletter-form {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-md);
}

.newsletter-form input {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
}

.newsletter-form button {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-gold);
    color: var(--primary-purple);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
    transition: var(--transition-base);
}

.newsletter-form button:hover {
    transform: translateX(3px);
}

.footer-bottom {
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-bottom p {
    opacity: 0.8;
}

.footer-bottom i {
    color: #ff6b6b;
}

.footer-bottom-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-bottom-links a {
    opacity: 0.8;
    transition: var(--transition-base);
}

.footer-bottom-links a:hover {
    opacity: 1;
    color: var(--gold-accent);
}

/* ============================================
   Scroll to Top Button
   ============================================ */

.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition-base);
    z-index: 999;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-to-top:hover {
    background: var(--gradient-gold);
    color: var(--primary-purple);
    transform: translateY(-5px);
}

/* ============================================
   Animations
   ============================================ */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-image-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .hero-icon {
        font-size: 7rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrapper {
        width: 300px;
        height: 300px;
    }
    
    .about-image-wrapper i {
        font-size: 7rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .mobile-toggle {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 72px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-base);
    }
    
    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-wrap: wrap;
        gap: var(--spacing-md);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
    
    .categories-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-image-wrapper {
        width: 250px;
        height: 250px;
    }
    
    .hero-icon {
        font-size: 5rem;
    }
    
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrapper {
        width: 250px;
        height: 250px;
    }
    
    .about-image-wrapper i {
        font-size: 5rem;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .scroll-to-top {
        width: 45px;
        height: 45px;
        bottom: 20px;
        right: 20px;
    }
}