/**
 * Author Catalog Styles
 * Main styles for author listing page
 * Based on existing book-catalog.css and article patterns
 */

/* Authors Layout */
.authors-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-8);
    margin-bottom: var(--spacing-8);
}

.authors-layout__main {
    width: 100%;
}

/* Authors Grid */
.authors-grid {
    display: grid;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-6);
}

.authors-grid--grid {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.authors-grid--list {
    grid-template-columns: 1fr;
}

.authors-grid--compact {
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
}

.authors-grid--horizontal-scroll {
    display: flex;
    overflow-x: auto;
    gap: var(--spacing-4);
    padding-bottom: var(--spacing-4);
    scroll-snap-type: x mandatory;
    scrollbar-width: thin;
    scrollbar-color: var(--color-primary) var(--color-border-light);
}

.authors-grid--horizontal-scroll::-webkit-scrollbar {
    height: 8px;
}

.authors-grid--horizontal-scroll::-webkit-scrollbar-track {
    background: var(--color-border-light);
    border-radius: 4px;
}

.authors-grid--horizontal-scroll::-webkit-scrollbar-thumb {
    background: var(--color-primary);
    border-radius: 4px;
}

.authors-grid--horizontal-scroll > * {
    flex: 0 0 280px;
    scroll-snap-align: start;
}

/* Subscribed Authors Section */
.subscribed-authors-section {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    margin-bottom: var(--spacing-8);
    box-shadow: var(--shadow-sm);
}

.section-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--spacing-4);
}

.section-title svg {
    color: var(--color-primary);
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: var(--spacing-8);
    padding: var(--spacing-6);
}

.page-title {
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin-bottom: var(--spacing-2);
}

.page-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-12) var(--spacing-6);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.empty-state__icon {
    font-size: 64px;
    margin-bottom: var(--spacing-4);
}

.empty-state__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-2);
}

.empty-state p {
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-4);
}

/* Loading States */
.authors-grid.loading {
    opacity: 0.6;
    pointer-events: none;
}

.author-skeleton {
    background: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-6);
    box-shadow: var(--shadow-sm);
}

.author-skeleton__avatar {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-4);
    border-radius: 50%;
    background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border) 50%, var(--color-bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

.author-skeleton__line {
    height: 16px;
    background: linear-gradient(90deg, var(--color-bg-tertiary) 25%, var(--color-border) 50%, var(--color-bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: 4px;
    margin-bottom: var(--spacing-2);
}

.author-skeleton__line--short {
    width: 60%;
    margin: 0 auto var(--spacing-2);
}

@keyframes shimmer {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive Design */
@media (max-width: 1024px) {
    .authors-grid--grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }
}

@media (max-width: 768px) {
    .authors-grid--grid,
    .authors-grid--compact {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        padding: var(--spacing-4);
    }
    
    .page-title {
        font-size: var(--font-size-2xl);
    }
    
    .page-subtitle {
        font-size: var(--font-size-base);
    }
    
    .subscribed-authors-section {
        padding: var(--spacing-4);
    }
    
    .section-title {
        font-size: var(--font-size-lg);
    }
}

@media (max-width: 480px) {
    .authors-grid {
        gap: var(--spacing-4);
    }
    
    .authors-grid--horizontal-scroll > * {
        flex: 0 0 240px;
    }
}

/* Print Styles */
@media print {
    .authors-grid {
        display: block;
    }
    
    .authors-grid > * {
        page-break-inside: avoid;
        margin-bottom: var(--spacing-4);
    }
    
    .page-header {
        page-break-after: avoid;
    }
}