/**
 * pages.css - Page-specific styles for Homepage, Books catalog, Details, Author profile, and Blog readers.
 */

/* ==========================================
   HOMEPAGE
   ========================================== */

/* Hero Section */
.hero-section {
    position: relative;
    padding: var(--spacing-xxl) 0 var(--spacing-xl);
    overflow: hidden;
    background-color: var(--bg-primary);
}

/* Luxury mesh gradient background overlay */
.hero-bg-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, rgba(20, 115, 230, 0) 70%);
    top: -200px;
    right: -100px;
    z-index: 1;
    pointer-events: none;
    animation: pulseGlow 10s ease-in-out infinite;
}

@keyframes pulseGlow {
    0%, 100% { transform: scale(1) translate(0, 0); }
    50% { transform: scale(1.15) translate(-50px, 30px); }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 650px;
}

.hero-tagline {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: var(--spacing-sm);
    display: inline-block;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.75rem;
    line-height: 1.15;
    font-weight: 500;
    margin-bottom: var(--spacing-md);
    letter-spacing: -1px;
}

.hero-title span {
    font-weight: 700;
    display: block;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
}

/* Floating Showcase Graphic */
.hero-showcase {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    perspective: 1000px;
}

.hero-book-stack {
    position: relative;
    width: 320px;
    height: 460px;
}

.hero-book-stack .book-card-3d {
    position: absolute;
    width: 250px;
    height: 370px;
    background-color: var(--card-bg);
    border-radius: var(--radius-md);
    box-shadow: 10px 20px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md);
    transition: transform var(--transition-slow);
}

/* Stack styling: overlapping 3D mockups */
.hero-book-stack .book-1 {
    z-index: 3;
    left: 20px;
    top: 40px;
}

.hero-book-stack .book-2 {
    z-index: 2;
    left: 80px;
    top: 10px;
    transform: rotate(4deg);
    opacity: 0.85;
}

.hero-book-stack .book-3 {
    z-index: 1;
    left: 0px;
    top: 70px;
    transform: rotate(-6deg);
    opacity: 0.7;
}

@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: var(--spacing-xl);
    }
    
    .hero-content {
        margin: 0 auto;
    }
    
    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-showcase {
        margin-top: var(--spacing-lg);
    }
}


/* Section Titles */
.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

.section-tag {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--accent);
    margin-bottom: 6px;
    display: inline-block;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

/* Categories Section Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-md);
}

.category-pill {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    text-align: center;
    font-weight: 600;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-sm);
}

.category-pill:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: var(--shadow-md);
}

/* Testimonial slider */
.testimonials-wrapper {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonials-track {
    display: flex;
    transition: transform var(--transition-normal);
}

.testimonial-slide {
    min-width: 100%;
    padding: var(--spacing-lg);
    box-sizing: border-box;
}

.testimonial-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    position: relative;
}

.testimonial-quote {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-style: italic;
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
}

.testimonial-author-name {
    font-weight: 700;
    color: var(--text-primary);
}

.testimonial-author-title {
    font-size: 0.85rem;
    color: var(--text-tertiary);
}

.testimonials-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: var(--spacing-md);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background-color: var(--border-color);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.dot.active {
    background-color: var(--accent);
    width: 24px;
}


/* ==========================================
   BOOKS DIRECTORY PAGE
   ========================================== */
.books-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
}

.sidebar-filters {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    height: fit-content;
    position: sticky;
    top: 100px;
}

.filter-section {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.filter-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.filter-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.filter-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.filter-item {
    font-size: 0.95rem;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.filter-item:hover, .filter-item.active {
    color: var(--accent);
}

.books-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
}

.view-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.view-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
}

.view-btn.active, .view-btn:hover {
    color: var(--accent);
    background-color: var(--accent-light);
    border-color: var(--accent);
}

.search-bar-wrap {
    position: relative;
    max-width: 300px;
    width: 100%;
}

.search-input {
    width: 100%;
    padding: 8px 12px 8px 36px;
    font-size: 0.9rem;
    border-radius: var(--radius-sm);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-tertiary);
    width: 16px;
    height: 16px;
}

/* List view variant for books list */
.books-list-view {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.books-list-view .book-card {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-lg);
    padding: var(--spacing-md);
}

.books-list-view .book-cover-container {
    width: 150px;
    aspect-ratio: 2/3;
    margin-bottom: 0;
    flex-shrink: 0;
}

.books-list-view .book-card-desc {
    margin-bottom: 0;
}

.books-list-view .book-card-info-wrap {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.books-list-view .book-card-actions {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    width: 180px;
}

@media (max-width: 900px) {
    .books-layout {
        grid-template-columns: 1fr;
    }
    
    .sidebar-filters {
        position: relative;
        top: 0;
        margin-bottom: var(--spacing-md);
    }
    
    .books-list-view .book-card {
        flex-direction: column;
        align-items: stretch;
    }
    
    .books-list-view .book-cover-container {
        width: 100%;
        aspect-ratio: 2/3;
    }
    
    .books-list-view .book-card-actions {
        width: 100%;
        flex-direction: row;
        flex-wrap: wrap;
    }
}


/* ==========================================
   BOOK DETAILS PAGE
   ========================================== */
.book-details-grid {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: var(--spacing-xl);
    align-items: start;
    margin-bottom: var(--spacing-xl);
}

.details-cover-wrap {
    position: sticky;
    top: 100px;
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: center;
    align-items: center;
}

.details-cover-img {
    width: 80%;
    border-radius: 4px 12px 12px 4px;
    box-shadow: 10px 15px 30px rgba(0, 0, 0, 0.3);
}

.details-info-wrap {
    display: flex;
    flex-direction: column;
}

.details-title {
    font-family: var(--font-serif);
    font-size: 2.75rem;
    font-weight: 600;
    line-height: 1.15;
    margin-bottom: var(--spacing-xs);
}

.details-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.details-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
}

.details-meta span strong {
    color: var(--text-primary);
}

.details-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.details-tab-content h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.details-features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.feature-item-box {
    background-color: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: var(--spacing-md);
    display: flex;
    gap: 12px;
}

.feature-item-box svg {
    color: var(--success);
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

.share-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.share-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
}

@media (max-width: 900px) {
    .book-details-grid {
        grid-template-columns: 1fr;
    }
    
    .details-cover-wrap {
        position: relative;
        top: 0;
    }
    
    .details-title {
        font-size: 2.25rem;
    }
    
    .details-features-grid {
        grid-template-columns: 1fr;
    }
}


/* ==========================================
   AUTHOR PAGE & PROFILE
   ========================================== */
.author-header-panel {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: var(--spacing-xl);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.author-img-wrap {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.author-img {
    width: 100%;
    border-radius: var(--radius-sm);
    object-fit: cover;
    aspect-ratio: 4/5;
}

.author-stats-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.author-stat-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.author-stat-num {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
    line-height: 1.2;
}

.author-stat-label {
    font-size: 0.8rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

@media (max-width: 900px) {
    .author-header-panel {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .author-header-panel img {
        max-width: 400px;
        margin: 0 auto;
    }
}


/* ==========================================
   BLOG DETAILS & CONTACT
   ========================================== */
.blog-post-wrap {
    max-width: 800px;
    margin: 0 auto;
}

.blog-post-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.blog-post-title {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.blog-post-cover {
    width: 100%;
    aspect-ratio: 21/9;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.blog-post-body {
    font-size: 1.1rem;
    line-height: 1.8;
}

.blog-post-body p {
    margin-bottom: var(--spacing-md);
}

.blog-post-body h3 {
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

/* Contact page Layout */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-xl);
}

.contact-info-panel {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    padding: var(--spacing-xl);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
}

.contact-card {
    display: flex;
    gap: 16px;
    margin-bottom: var(--spacing-lg);
}

.contact-card-icon {
    background-color: var(--accent-light);
    color: var(--accent);
    width: 46px;
    height: 46px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-card-icon svg {
    width: 20px;
    height: 20px;
}

.contact-card-content h4 {
    margin-bottom: 4px;
}

@media (max-width: 900px) {
    .contact-layout {
        grid-template-columns: 1fr;
    }
}