/**
 * ERWEITERTE BLOG-FEATURES CSS
 * Dennis Gutjahr - Tierheilpraxis & Ernährungsberatung
 * 
 * Features:
 * - Dark/Light Mode
 * - Sortierung
 * - Tag-Filter
 * - Scroll-Animationen
 * - Sticky Sidebar
 * - Back-to-Top Button
 * - Share Buttons
 * - Like Buttons
 * - Breadcrumb Navigation
 */

/* ========================================
   DARK MODE VARIABLEN
   ======================================== */
:root {
    /* Light Mode */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-heavy: rgba(0, 0, 0, 0.2);
    
    /* Accent Colors */
    --primary-green: #2c5530;
    --primary-green-light: #3d6b42;
    --primary-green-dark: #1e3a21;
    --accent-gold: #d4af37;
    --accent-gold-light: #e6c547;
    
    /* Status Colors */
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    --info: #17a2b8;
}

/* Dark Mode */
.dark-mode {
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #404040;
    --text-primary: #ffffff;
    --text-secondary: #b3b3b3;
    --text-muted: #808080;
    --border-color: #404040;
    --shadow-light: rgba(255, 255, 255, 0.1);
    --shadow-medium: rgba(255, 255, 255, 0.15);
    --shadow-heavy: rgba(255, 255, 255, 0.2);
}

/* ========================================
   DARK MODE TOGGLE
   ======================================== */
.dark-mode-toggle {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    margin-left: 1rem;
}

.dark-mode-toggle:hover {
    background: var(--primary-green);
    color: white;
    transform: scale(1.1);
}

.dark-mode-toggle i {
    font-size: 1rem;
    transition: transform 0.3s ease;
}

.dark-mode-toggle:hover i {
    transform: rotate(180deg);
}

/* ========================================
   SORTIERUNG
   ======================================== */
.sorting-controls {
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.sorting-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.sort-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
    margin: 0;
}

.sort-select {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 180px;
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(44, 85, 48, 0.1);
}

/* ========================================
   KATEGORIE-LINK-BUTTONS
   ======================================== */
.category-link-btn {
    text-decoration: none !important;
    color: inherit !important;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.2rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.category-link-btn:hover {
    background: var(--primary-green);
    color: white !important;
    border-color: var(--primary-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.category-link-btn:hover .category-count {
    background: rgba(255, 255, 255, 0.2);
}

.category-link-btn .category-count {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* ========================================
   TAG-FILTER
   ======================================== */
.tag-filter-container {
    margin: 1.5rem 0;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.tag-filter-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tag-btn {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.tag-btn:hover {
    background: var(--primary-green);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-medium);
}

.tag-btn.active {
    background: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
}

.tag-count {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 10px;
    padding: 0.1rem 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.tag-btn.active .tag-count {
    background: rgba(255, 255, 255, 0.3);
}

/* ========================================
   ERWEITERTE ARTIKEL-CARDS
   ======================================== */
.article-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
    transform: translateY(30px);
    position: relative;
}

.article-card.animate-in {
    opacity: 1;
    transform: translateY(0);
}

.article-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px var(--shadow-medium);
    border-color: var(--primary-green);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    margin: 0.8rem 0;
}

.article-tags .tag {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.2rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 500;
}

.article-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 1rem 0;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.like-btn {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 0.4rem 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.85rem;
}

.like-btn:hover {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
    transform: scale(1.05);
}

.like-btn.liked {
    background: var(--danger);
    color: white;
    border-color: var(--danger);
}

.like-btn i {
    transition: transform 0.3s ease;
}

.like-btn:hover i {
    transform: scale(1.2);
}

.share-buttons {
    display: flex;
    gap: 0.3rem;
}

.share-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.share-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--shadow-medium);
}

.share-btn[data-platform="whatsapp"]:hover {
    background: #25d366;
    color: white;
    border-color: #25d366;
}

.share-btn[data-platform="facebook"]:hover {
    background: #1877f2;
    color: white;
    border-color: #1877f2;
}

.share-btn[data-platform="twitter"]:hover {
    background: #1da1f2;
    color: white;
    border-color: #1da1f2;
}

/* ========================================
   BACK TO TOP BUTTON
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 1000;
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-green-dark);
    transform: translateY(-3px);
    box-shadow: 0 6px 16px var(--shadow-heavy);
}

.back-to-top i {
    font-size: 1.2rem;
}

/* ========================================
   STICKY SIDEBAR
   ======================================== */
.sticky-sidebar {
    position: absolute;
    top: 0;
    right: 0;
    width: 280px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: all 0.3s ease;
    z-index: 100;
}

.sticky-sidebar.sticky {
    position: fixed;
    top: 2rem;
    right: 2rem;
    box-shadow: 0 8px 24px var(--shadow-medium);
}

.sidebar-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.sidebar-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 0.8rem;
    border-radius: 8px;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.sidebar-link:hover {
    background: var(--bg-secondary);
    color: var(--primary-green);
}

.sidebar-stats {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.sidebar-stats h5 {
    margin: 0 0 0.8rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.stat-label {
    color: var(--text-secondary);
}

.stat-value {
    color: var(--primary-green);
    font-weight: 600;
}

/* ========================================
   BREADCRUMB NAVIGATION
   ======================================== */
.breadcrumb-nav {
    margin-bottom: 2rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.9rem;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    color: var(--text-muted);
    margin-left: 0.5rem;
}

.breadcrumb-item a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.breadcrumb-item a:hover {
    color: var(--primary-green);
}

.breadcrumb-item.active {
    color: var(--text-primary);
    font-weight: 500;
}

/* ========================================
   SCROLL ANIMATIONEN
   ======================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.article-card.animate-in {
    animation: fadeInUp 0.6s ease forwards;
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 1200px) {
    .sticky-sidebar {
        display: none;
    }
}

@media (max-width: 768px) {
    .sorting-wrapper {
        flex-direction: column;
        align-items: stretch;
    }
    
    .sort-select {
        min-width: auto;
        width: 100%;
    }
    
    .tag-list {
        justify-content: center;
    }
    
    .article-actions {
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .share-buttons {
        justify-content: center;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
    }
    
    .breadcrumb {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .dark-mode-toggle {
        width: 35px;
        height: 35px;
        margin-left: 0.5rem;
    }
    
    .tag-btn {
        font-size: 0.8rem;
        padding: 0.3rem 0.6rem;
    }
    
    .article-tags .tag {
        font-size: 0.7rem;
        padding: 0.15rem 0.4rem;
    }
}

/* ========================================
   DARK MODE SPEZIFISCHE ANPASSUNGEN
   ======================================== */
.dark-mode .article-card {
    background: var(--bg-primary);
    border-color: var(--border-color);
}

.dark-mode .article-card:hover {
    box-shadow: 0 12px 24px var(--shadow-medium);
}

.dark-mode .sorting-controls,
.dark-mode .tag-filter-container {
    background: var(--bg-secondary);
    border-color: var(--border-color);
}

.dark-mode .sticky-sidebar {
    background: var(--bg-primary);
    border-color: var(--border-color);
}

.dark-mode .breadcrumb-nav {
    border-color: var(--border-color);
}

/* ========================================
   PERFORMANCE OPTIMIERUNGEN
   ======================================== */
.article-card {
    will-change: transform, opacity;
}

.back-to-top {
    will-change: transform, opacity;
}

.sticky-sidebar {
    will-change: transform;
}

/* ========================================
   KATEGORIE-ÜBERSICHT
   ======================================== */
.categories-overview {
    margin: 3rem 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.category-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.category-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-green), var(--accent-gold));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.category-card:hover::before {
    transform: scaleX(1);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px var(--shadow-medium);
    border-color: var(--primary-green);
}

.category-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
}

.category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.category-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.category-stats {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.category-stats .stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
}

.category-stats .stat-item i {
    color: var(--primary-green);
    font-size: 0.8rem;
}

.category-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--primary-green);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    padding: 0.5rem 0;
}

.category-link:hover {
    color: var(--primary-green-dark);
    transform: translateX(4px);
}

.category-link i {
    transition: transform 0.3s ease;
}

.category-link:hover i {
    transform: translateX(4px);
}

.back-to-blog {
    margin: 3rem 0;
}

.back-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2rem;
    text-align: center;
}

.back-content h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.back-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-green);
    color: white;
    text-decoration: none;
    padding: 0.8rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.back-link:hover {
    background: var(--primary-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-medium);
}

/* Responsive Design für Kategorie-Übersicht */
@media (max-width: 768px) {
    .categories-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .category-card {
        padding: 1.5rem;
    }
    
    .category-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .category-title {
        font-size: 1.25rem;
    }
    
    .category-stats {
        flex-direction: column;
        gap: 0.5rem;
    }
}

@media (max-width: 480px) {
    .categories-overview {
        margin: 2rem 0;
    }
    
    .category-card {
        padding: 1.25rem;
    }
    
    .back-card {
        padding: 1.5rem;
    }
}

/* ========================================
   QUICK LINKS
   ======================================== */
.quick-links {
    margin: 3rem 0;
}

.quick-links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.quick-link-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.quick-link-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-green), var(--accent-gold));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.quick-link-card:hover::before {
    transform: scaleX(1);
}

.quick-link-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--shadow-medium);
    border-color: var(--primary-green);
}

.quick-link-icon {
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-green), var(--primary-green-light));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.quick-link-content h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    font-family: 'Playfair Display', serif;
}

.quick-link-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
    margin: 0;
}

/* Responsive Quick Links */
@media (max-width: 768px) {
    .quick-links-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .quick-link-card {
        padding: 1.25rem;
    }
    
    .quick-link-icon {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    .quick-link-content h4 {
        font-size: 1rem;
    }
    
    .quick-link-content p {
        font-size: 0.85rem;
    }
}

/* ========================================
   SORT & VIEW OPTIONS
   ======================================== */
.sort-section {
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.sort-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.sort-options {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sort-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
}

.sort-label i {
    color: var(--primary-green);
}

.sort-select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.sort-select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px rgba(44, 85, 48, 0.1);
}

.view-options {
    display: flex;
    gap: 0.5rem;
}

.view-btn {
    width: 40px;
    height: 40px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.view-btn:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.view-btn.active {
    background: var(--primary-green);
    color: white;
    border-color: var(--primary-green);
}

/* ========================================
   LIST VIEW
   ======================================== */
.articles-grid.list-view {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.articles-grid.list-view .article-card {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: none;
    width: 100%;
}

.articles-grid.list-view .article-image {
    width: 200px;
    height: 150px;
    flex-shrink: 0;
    border-radius: 12px;
}

.articles-grid.list-view .article-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.articles-grid.list-view .article-meta {
    margin-bottom: 0.5rem;
}

.articles-grid.list-view .article-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.articles-grid.list-view .article-excerpt {
    font-size: 0.95rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.articles-grid.list-view .article-footer {
    margin-top: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.articles-grid.list-view .article-stats {
    display: flex;
    gap: 1rem;
    margin: 0;
}

.articles-grid.list-view .article-actions {
    display: flex;
    gap: 0.5rem;
}

/* Responsive List View */
@media (max-width: 768px) {
    .articles-grid.list-view .article-card {
        flex-direction: column;
        text-align: center;
    }
    
    .articles-grid.list-view .article-image {
        width: 100%;
        height: 200px;
    }
    
    .articles-grid.list-view .article-footer {
        flex-direction: column;
        gap: 1rem;
        align-items: center;
    }
    
    .sort-container {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .sort-options {
        justify-content: center;
    }
    
    .view-options {
        justify-content: center;
    }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    margin-top: 4rem;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    color: var(--text-primary);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    font-family: 'Playfair Display', serif;
}

.footer-section p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.footer-section a {
    color: var(--primary-green);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-green-dark);
}

.footer-bottom {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
    text-align: center;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0;
}

/* Responsive Footer */
@media (max-width: 768px) {
    .footer {
        padding: 2rem 0 1rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-section {
        text-align: center;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    .article-card,
    .back-to-top,
    .sticky-sidebar,
    .dark-mode-toggle,
    .tag-btn,
    .like-btn,
    .share-btn {
        transition: none;
    }
    
    .article-card.animate-in {
        animation: none;
    }
}

/* Focus States */
.dark-mode-toggle:focus,
.sort-select:focus,
.tag-btn:focus,
.like-btn:focus,
.share-btn:focus,
.back-to-top:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --border-color: #000000;
        --text-secondary: #000000;
    }
    
    .dark-mode {
        --border-color: #ffffff;
        --text-secondary: #ffffff;
    }
}