/**
 * Right Sidebar Styles for Article Page
 * 
 * Desktop: Shows as sticky sidebar on the right
 * Mobile: Moves below article content, before related articles
 */

/* Article Body Layout - 3 columns on desktop */
.article-page__body {
    display: grid;
    grid-template-columns: 280px 1fr 320px;
    gap: 40px;
    align-items: start;
}

/* Right Sidebar */
.article-sidebar-right {
    position: sticky;
    top: 100px;
    max-height: calc(100vh - 120px);
    overflow-y: auto;
    overflow-x: hidden;
    padding-bottom: 20px;
}

/* Custom scrollbar for sidebar */
.article-sidebar-right::-webkit-scrollbar {
    width: 6px;
}

.article-sidebar-right::-webkit-scrollbar-track {
    background: transparent;
}

.article-sidebar-right::-webkit-scrollbar-thumb {
    background: var(--color-border, #e5e7eb);
    border-radius: 3px;
}

.article-sidebar-right::-webkit-scrollbar-thumb:hover {
    background: var(--color-text-tertiary, #9ca3af);
}

/* Author Card */
.sidebar-author-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-border, #e5e7eb);
}

.sidebar-author-card__avatar {
    display: block;
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto 16px;
    transition: transform 0.2s ease;
}

.sidebar-author-card__avatar:hover {
    transform: scale(1.05);
}

.sidebar-author-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar__placeholder--large {
    width: 80px;
    height: 80px;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary, #3b82f6);
    color: white;
    font-weight: 600;
    text-transform: uppercase;
}

.sidebar-author-card__info {
    text-align: center;
    margin-bottom: 16px;
}

.sidebar-author-card__name {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary, #1a1a1a);
    text-decoration: none;
    margin-bottom: 8px;
    transition: color 0.2s ease;
}

.sidebar-author-card__name:hover {
    color: var(--color-primary, #3b82f6);
}

.sidebar-author-card__bio {
    font-size: 14px;
    line-height: 1.5;
    color: var(--color-text-secondary, #6b7280);
    margin: 0;
}

.sidebar-author-card__actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 16px;
}

.btn--block {
    width: 100%;
    justify-content: center;
}

/* Sidebar Sections */
.sidebar-section {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--color-border, #e5e7eb);
}

.sidebar-section__title {
    font-size: 16px;
    font-weight: 700;
    margin: 0 0 16px 0;
    color: var(--color-text-primary, #1a1a1a);
    padding-bottom: 12px;
    border-bottom: 2px solid var(--color-primary, #3b82f6);
}

/* Sidebar Articles List */
.sidebar-articles-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

/* Sidebar Article Card */
.sidebar-article-card {
    transition: transform 0.2s ease;
}

.sidebar-article-card:hover {
    transform: translateX(4px);
}

.sidebar-article-card__link {
    display: flex;
    gap: 12px;
    text-decoration: none;
    color: inherit;
}

.sidebar-article-card__image {
    flex-shrink: 0;
    width: 100px;
    height: 67px;
    border-radius: 6px;
    overflow: hidden;
    background: var(--color-background-secondary, #f8f9fa);
}

.sidebar-article-card__image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.sidebar-article-card:hover .sidebar-article-card__image img {
    transform: scale(1.1);
}

.sidebar-article-card__content {
    flex: 1;
    min-width: 0;
}

.sidebar-article-card__title {
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
    margin: 0 0 8px 0;
    color: var(--color-text-primary, #1a1a1a);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: color 0.2s ease;
}

.sidebar-article-card:hover .sidebar-article-card__title {
    color: var(--color-primary, #3b82f6);
}

.sidebar-article-card__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    color: var(--color-text-tertiary, #9ca3af);
}

.sidebar-article-card__meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

/* Tablet Layout (1024px - 1280px) */
@media (max-width: 1280px) {
    .article-page__body {
        grid-template-columns: 240px 1fr 280px;
        gap: 30px;
    }
    
    .article-sidebar-right {
        top: 90px;
    }
    
    .sidebar-author-card,
    .sidebar-section {
        padding: 16px;
    }
    
    .sidebar-article-card__image {
        width: 80px;
        height: 54px;
    }
}

/* Tablet - Hide right sidebar, show TOC */
@media (max-width: 1024px) {
    .article-page__body {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    /* Move right sidebar below content */
    .article-sidebar-right {
        position: static;
        max-height: none;
        overflow: visible;
        margin-top: 40px;
        padding-bottom: 0;
    }
    
    /* Show sidebar sections in 2 columns on tablet */
    .article-sidebar-right {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .sidebar-author-card {
        grid-column: 1 / -1;
    }
}

/* Mobile Layout */
@media (max-width: 768px) {
    /* Single column on mobile */
    .article-sidebar-right {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 30px;
    }
    
    .sidebar-author-card,
    .sidebar-section {
        padding: 16px;
        margin-bottom: 0;
    }
    
    .sidebar-author-card__avatar {
        width: 64px;
        height: 64px;
        margin-bottom: 12px;
    }
    
    .avatar__placeholder--large {
        width: 64px;
        height: 64px;
        font-size: 24px;
    }
    
    .sidebar-author-card__name {
        font-size: 16px;
    }
    
    .sidebar-author-card__bio {
        font-size: 13px;
    }
    
    .sidebar-section__title {
        font-size: 15px;
        margin-bottom: 12px;
        padding-bottom: 10px;
    }
    
    .sidebar-articles-list {
        gap: 12px;
    }
    
    .sidebar-article-card__image {
        width: 90px;
        height: 60px;
    }
    
    .sidebar-article-card__title {
        font-size: 13px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .sidebar-article-card__link {
        flex-direction: column;
        gap: 8px;
    }
    
    .sidebar-article-card__image {
        width: 100%;
        height: 180px;
    }
}

/* Print Styles */
@media print {
    .article-sidebar-right {
        display: none;
    }
    
    .article-page__body {
        grid-template-columns: 1fr;
    }
}

/* Accessibility */
.sidebar-article-card:focus-within {
    outline: 2px solid var(--color-primary, #3b82f6);
    outline-offset: 2px;
    border-radius: 8px;
}

/* Dark Mode Support (if needed) */
[data-theme="dark"] {
    .sidebar-author-card,
    .sidebar-section {
        background: var(--color-background-dark, #1f2937);
        border-color: var(--color-border-dark, #374151);
    }
    
    .sidebar-author-card__name,
    .sidebar-section__title,
    .sidebar-article-card__title {
        color: var(--color-text-primary-dark, #f9fafb);
    }
    
    .sidebar-author-card__bio,
    .sidebar-article-card__meta {
        color: var(--color-text-secondary-dark, #d1d5db);
    }
}