/* ========================================
   BookNest Homepage Styles
   ======================================== */

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    padding: calc(64px + var(--space-8)) var(--container-padding) var(--space-16);
    overflow: hidden;
}

@media (min-width: 1024px) {
    .hero {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-12);
        padding: calc(64px + var(--space-16)) var(--container-padding) var(--space-20);
    }
}

.hero-background {
    position: absolute;
    inset: 0;
    z-index: -1;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        linear-gradient(180deg, var(--color-white) 0%, var(--color-gray-50) 100%);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-gray-100);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

.hero-badge i {
    color: var(--color-primary);
    line-height: 1;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.1s forwards;
    opacity: 0;
}

.hero h1 .highlight {
    color: var(--color-primary);
}

.hero-content > p {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-8);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.2s forwards;
    opacity: 0;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-12);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.3s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    padding-top: var(--space-8);
    border-top: 1px solid var(--color-gray-200);
    animation: fadeIn 0.6s cubic-bezier(0.4, 0, 0.2, 1) 0.4s forwards;
    opacity: 0;
}

.stat {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.stat > i {
    font-size: var(--text-2xl);
    color: var(--color-primary);
    opacity: 0.7;
}

.stat-content {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-display);
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: var(--color-gray-900);
}

.stat-label {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

/* Hero Visual / Book Showcase */
.hero-visual {
    display: none;
    position: relative;
    height: 500px;
}

@media (min-width: 1024px) {
    .hero-visual {
        display: block;
    }
}

.book-showcase {
    position: relative;
    width: 100%;
    height: 100%;
    perspective: 1000px;
}

.showcase-book {
    position: absolute;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-2xl);
    transition: all var(--transition-slow);
}

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

.showcase-book.main {
    width: 240px;
    height: 360px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateY(-5deg);
    z-index: 3;
    animation: float 4s ease-in-out infinite;
}

.showcase-book.left {
    width: 200px;
    height: 300px;
    top: 60%;
    left: 10%;
    transform: translateY(-50%) rotateY(10deg) rotateZ(-5deg);
    z-index: 2;
    animation: float 4s ease-in-out 0.5s infinite;
    opacity: 0.9;
}

.showcase-book.right {
    width: 200px;
    height: 300px;
    top: 40%;
    right: 5%;
    transform: translateY(-50%) rotateY(-10deg) rotateZ(5deg);
    z-index: 1;
    animation: float 4s ease-in-out 1s infinite;
    opacity: 0.9;
}

.showcase-book:hover {
    transform: translate(-50%, -50%) scale(1.05);
    z-index: 10;
    box-shadow: var(--shadow-2xl), 0 0 40px rgba(124, 58, 237, 0.3);
}

.showcase-book.left:hover,
.showcase-book.right:hover {
    transform: translateY(-50%) scale(1.1);
}

/* Featured Books Section */
.featured-books {
    background: var(--color-gray-50);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-6);
}

.book-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.book-card a {
    display: block;
    text-decoration: none;
    color: inherit;
}

.book-cover {
    position: relative;
    aspect-ratio: 2/3;
    overflow: hidden;
    background: var(--color-gray-100);
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

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

.book-overlay {
    position: absolute;
    inset: 0;
    background: transparent;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: var(--space-4);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.book-card:hover .book-overlay {
    opacity: 1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.4) 0%, transparent 40%);
}

.quick-view {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--color-gray-800);
    transform: translateY(10px);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.book-card:hover .quick-view {
    transform: translateY(0);
    opacity: 1;
}

.book-badge {
    position: absolute;
    top: var(--space-3);
    left: var(--space-3);
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: 6px 12px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: var(--font-bold);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 2;
}

.book-badge.trending {
    background: var(--color-secondary);
    color: var(--color-white);
}

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

.book-info {
    padding: var(--space-4) var(--space-5);
    background: var(--color-white);
}

.book-genre {
    display: inline-block;
    font-size: 11px;
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--space-2);
}

.book-info h3 {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
    line-height: 1.4;
    color: var(--color-gray-900);
    transition: color 0.2s ease;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-card:hover .book-info h3 {
    color: var(--color-primary);
}

.book-author {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-2);
}

.book-rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.book-rating .stars {
    display: flex;
    align-items: center;
    gap: 1px;
}

.book-rating .stars i {
    color: #f59e0b;
    font-size: 12px;
}

.book-rating .rating-count {
    font-size: var(--text-xs);
    color: var(--color-gray-400);
}

.btn-bookmark {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    transform: scale(0.8);
    transition: all 0.2s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    z-index: 2;
}

.book-card:hover .btn-bookmark {
    opacity: 1;
    transform: scale(1);
}

.btn-bookmark:hover {
    background: var(--color-gray-50);
}

.btn-bookmark i {
    font-size: 14px;
    color: var(--color-gray-600);
}

.btn-bookmark.bookmarked i {
    color: var(--color-primary);
}

.book-info .author {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--space-3);
}

.book-info .author i {
    color: var(--color-primary-light);
}

.book-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-3);
}

.rating {
    display: flex;
    align-items: center;
    gap: 2px;
}

.rating i {
    color: var(--color-warning);
    font-size: var(--text-sm);
}

.rating span {
    margin-left: var(--space-2);
    font-weight: var(--font-semibold);
    color: var(--color-gray-700);
}

.discussions-count {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.book-tags {
    display: flex;
    gap: var(--space-2);
    flex-wrap: wrap;
}

/* Genre Preview Section */
.genres-preview {
    background: var(--color-white);
}

.genres-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--space-4);
}

.genre-card {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-5);
    background: var(--color-white);
    border: 1px solid var(--color-gray-100);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
}

.genre-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
}

.genre-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--color-primary-50);
    border-radius: var(--radius-lg);
    flex-shrink: 0;
}

.genre-icon i {
    font-size: var(--text-xl);
    color: var(--color-primary);
}

.genre-card:hover .genre-icon {
    background: var(--color-primary);
}

.genre-card:hover .genre-icon i {
    color: var(--color-white);
}

.genre-content {
    flex: 1;
}

.genre-content h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
    transition: color var(--transition-fast);
}

.genre-card:hover .genre-content h3 {
    color: var(--color-primary);
}

.book-count {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.genre-arrow {
    color: var(--color-gray-300);
    transition: all var(--transition-fast);
}

.genre-card:hover .genre-arrow {
    color: var(--color-primary);
    transform: translateX(4px);
}

/* Discussions Section */
.trending-discussions {
    background: linear-gradient(180deg, var(--color-gray-50) 0%, var(--color-white) 100%);
}

.discussions-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-4);
}

@media (min-width: 768px) {
    .discussions-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .discussions-list {
        grid-template-columns: repeat(3, 1fr);
    }
}

.discussion-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.discussion-card:hover {
    border-color: var(--color-gray-200);
    box-shadow: var(--shadow-md);
}

.discussion-card a {
    display: block;
    padding: var(--space-6);
    position: relative;
}

.discussion-header {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
    flex-wrap: wrap;
}

.discussion-card h3 {
    font-family: var(--font-body);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    line-height: var(--leading-snug);
    margin-bottom: var(--space-3);
    transition: color var(--transition-fast);
}

.discussion-card:hover h3 {
    color: var(--color-primary);
}

.discussion-excerpt {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.discussion-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
}

.author-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.author-info span {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
}

.stats {
    display: flex;
    gap: var(--space-4);
}

.stats span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

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

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.review-card {
    background: var(--color-white);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    border: 1px solid var(--color-gray-100);
    transition: all var(--transition-base);
}

.review-card:hover {
    border-color: var(--color-gray-200);
    box-shadow: var(--shadow-md);
}

.review-book {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-4);
}

.review-cover {
    width: 60px;
    height: 90px;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.book-details h4 {
    font-family: var(--font-body);
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.book-details .author {
    font-size: var(--text-sm);
    color: var(--color-gray-500);
}

.review-rating {
    display: flex;
    gap: 2px;
    margin-bottom: var(--space-4);
}

.review-rating i {
    color: var(--color-warning);
}

.review-text {
    font-size: var(--text-sm);
    color: var(--color-gray-600);
    line-height: var(--leading-relaxed);
    font-style: italic;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.review-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-200);
}

.reviewer {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.reviewer span {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-gray-700);
}

/* CTA Section */
.cta-section {
    background: var(--color-gray-900);
    color: var(--color-white);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--color-gray-800);
    border-radius: var(--radius-xl);
    margin-bottom: var(--space-6);
}

.cta-icon i {
    font-size: var(--text-2xl);
    color: var(--color-white);
}

.cta-content h2 {
    color: var(--color-white);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    margin-bottom: var(--space-4);
}

.cta-content p {
    font-size: var(--text-lg);
    opacity: 0.9;
    margin-bottom: var(--space-8);
}

.cta-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-4);
}