/* ============================================
   Books Page Styles
   ============================================ */

/* ============================================
   Page Header
   ============================================ */
.books-header {
    padding: var(--space-2xl) 0 var(--space-xl);
    text-align: center;
    background: linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
    border-bottom: 1px solid var(--color-border);
}

.page-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    text-shadow: 0 0 20px var(--color-accent-glow);
}

.page-subtitle {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    font-style: italic;
    margin-top: var(--space-sm);
}

/* ============================================
   Books Filter
   ============================================ */
.books-filter {
    padding: var(--space-lg) 0;
    background-color: var(--color-bg-secondary);
    border-bottom: 1px solid var(--color-border);
}

.filter-container {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--space-sm) var(--space-lg);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--space-sm);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-base);
}

.filter-btn:hover {
    background-color: var(--color-accent-soft);
    color: var(--color-accent);
    border-color: var(--color-accent);
}

.filter-btn.active {
    background-color: var(--color-accent);
    color: var(--color-text-primary);
    border-color: var(--color-accent);
}

.series-dropdown {
    margin-top: var(--space-md);
    text-align: center;
}

.series-dropdown label {
    color: var(--color-text-secondary);
    margin-right: var(--space-sm);
    font-size: 0.9rem;
}

.series-dropdown select {
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-primary);
    border: 1px solid var(--color-border);
    border-radius: var(--space-sm);
    cursor: pointer;
    font-size: 0.9rem;
}

.series-dropdown select:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* ============================================
   Books Section
   ============================================ */
.books-section {
    padding: var(--space-xl) 0;
    min-height: 60vh;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--space-xl);
}

.book-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--space-lg);
    overflow: hidden;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-accent);
}

.book-cover {
    position: relative;
    width: 100%;
    height: 400px;
    overflow: hidden;
    background-color: var(--color-bg-tertiary);
}

.book-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

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

.book-badge {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    padding: var(--space-xs) var(--space-md);
    border-radius: var(--space-xs);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.book-badge.published {
    background-color: var(--color-accent);
    color: var(--color-text-primary);
}

.book-badge.in-progress {
    background-color: #f59e0b;
    color: #fff;
}

.book-badge.planned {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

.book-content {
    padding: var(--space-lg);
}

.book-series {
    font-size: 0.85rem;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--space-xs);
    font-weight: 600;
}

.book-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.book-subtitle {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--space-md);
    font-style: italic;
}

.book-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--space-md);
    border-top: 1px solid var(--color-border);
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.book-meta-item {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.book-actions {
    margin-top: var(--space-md);
}

.book-actions .btn {
    width: 100%;
    text-align: center;
}

.loading-message,
.no-books-message {
    text-align: center;
    padding: var(--space-2xl);
    color: var(--color-text-muted);
    font-size: 1.1rem;
}

.no-books-message p {
    margin-bottom: var(--space-lg);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
    .books-header {
        padding: var(--space-xl) 0 var(--space-lg);
    }
    
    .page-title {
        font-size: clamp(1.8rem, 5vw, 2.2rem);
    }
    
    .books-section {
        padding: var(--space-lg) 0;
    }
    
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: var(--space-lg);
    }
    
    .book-cover {
        height: 350px;
    }
    
    .filter-container {
        gap: var(--space-sm);
    }
    
    .filter-btn {
        padding: var(--space-xs) var(--space-md);
        font-size: 0.85rem;
    }
}

@media (max-width: 480px) {
    .books-grid {
        grid-template-columns: 1fr;
    }
    
    .book-cover {
        height: 300px;
    }
    
    .book-content {
        padding: var(--space-md);
    }
}

/* ============================================
   Veil Network Canvas
   ============================================ */
#veil-network-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   Navigation
   ============================================ */
.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: var(--color-bg-primary);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    height: var(--nav-height);
    backdrop-filter: blur(10px);
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.nav-logo:hover {
    color: var(--color-accent);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--space-lg);
    margin: 0;
    padding: 0;
}

.nav-links li {
    margin: 0;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--color-text-primary);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background-color: var(--color-bg-primary);
        flex-direction: column;
        padding: var(--space-lg);
        gap: var(--space-md);
        border-bottom: 1px solid var(--color-border);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .nav-toggle {
        display: block;
    }
}

/* ============================================
   Container
   ============================================ */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}