/* Forum Styles */

/* Forum Header */
.forum-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 3rem 0;
    margin-bottom: 2rem;
    border-radius: 0 0 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.forum-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="20" cy="20" r="2" fill="rgba(255,255,255,0.1)"/><circle cx="80" cy="40" r="1.5" fill="rgba(255,255,255,0.1)"/><circle cx="40" cy="80" r="1" fill="rgba(255,255,255,0.1)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

.forum-header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
    margin-bottom: 2rem;
}

.forum-title {
    font-size: 3rem;
    font-weight: 800;
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.forum-subtitle {
    font-size: 1.2rem;
    margin: 0.5rem 0 0 0;
    opacity: 0.9;
}

.forum-actions .btn {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.forum-actions .btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Forum Stats */
.forum-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    position: relative;
    z-index: 1;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.stat-number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    opacity: 0.8;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Featured Topics */
.featured-topics {
    margin-bottom: 3rem;
}

.section-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    position: relative;
    padding-left: 1rem;
}

.section-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 100%;
    background: linear-gradient(to bottom, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
}

.featured-topics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.featured-topic-card {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.featured-topic-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.featured-topic-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-color: var(--primary-color);
}

.featured-topic-card .topic-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.topic-featured-badge {
    background: linear-gradient(45deg, #FFD700, #FFA500);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Forum Filters */
.forum-filters {
    background: var(--card-bg);
    border-radius: 1rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.filters-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.search-form {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

.search-group {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-input {
    width: 100%;
    padding: 0.75rem 1rem;
    padding-right: 3rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: var(--input-bg);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

.search-btn {
    position: absolute;
    right: 0.5rem;
    top: 50%;
    transform: translateY(-50%);
    background: var(--primary-color);
    border: none;
    padding: 0.5rem;
    border-radius: 0.25rem;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.search-btn:hover {
    background: var(--primary-dark);
    transform: translateY(-50%) scale(1.05);
}

.category-filter {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    background: var(--input-bg);
    min-width: 200px;
    transition: all 0.3s ease;
}

.category-filter:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.1);
}

/* Active Filters */
.active-filters {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.filter-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.filter-tag {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: slideIn 0.3s ease;
}

.remove-filter {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 0 0.25rem;
    border-radius: 50%;
    transition: background 0.2s ease;
}

.remove-filter:hover {
    background: rgba(255, 255, 255, 0.2);
}

.clear-filters {
    color: var(--danger-color);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    transition: all 0.2s ease;
}

.clear-filters:hover {
    background: var(--danger-color);
    color: white;
}

/* Topics Section */
.topics-section {
    margin-bottom: 3rem;
}

.no-topics {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--card-bg);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.no-topics-icon {
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.no-topics h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-color);
}

.no-topics p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Topics List */
.topics-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.topic-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    gap: 1rem;
    align-items: center;
    transition: all 0.3s ease;
    position: relative;
}

.topic-item:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-2px);
}

.topic-item.pinned {
    border-left: 4px solid var(--warning-color);
    background: linear-gradient(90deg, rgba(255, 193, 7, 0.05) 0%, var(--card-bg) 10%);
}

.topic-item.locked {
    border-left: 4px solid var(--danger-color);
    background: linear-gradient(90deg, rgba(220, 53, 69, 0.05) 0%, var(--card-bg) 10%);
    opacity: 0.8;
}

.topic-status {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
}

.status-icon {
    transition: all 0.3s ease;
}

.status-icon.pinned {
    color: var(--warning-color);
}

.status-icon.locked {
    color: var(--danger-color);
}

.status-icon.normal {
    color: var(--primary-color);
}

.topic-content {
    flex: 1;
    min-width: 0;
}

.topic-content .topic-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
}

.topic-category {
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.topic-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.topic-badge.pinned {
    background: var(--warning-color);
    color: white;
}

.topic-badge.locked {
    background: var(--danger-color);
    color: white;
}

.topic-title {
    margin: 0.5rem 0;
    font-size: 1.2rem;
    font-weight: 600;
    line-height: 1.4;
}

.topic-title a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.topic-title a:hover {
    color: var(--primary-color);
}

.topic-excerpt {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1rem;
}

.topic-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.85rem;
    color: var(--text-muted);
    flex-wrap: wrap;
}

.topic-author {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.author-avatar {
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    object-fit: cover;
}

.topic-stats {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
    min-width: 80px;
}

.topic-stats .stat-item {
    background: none;
    padding: 0;
    border-radius: 0;
}

.topic-stats .stat-number {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.topic-stats .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.topic-last-post {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 150px;
    text-align: right;
}

.last-post-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.8rem;
}

.last-post-label {
    color: var(--text-muted);
    font-weight: 600;
}

.last-post-author {
    color: var(--text-color);
    font-weight: 500;
}

.last-post-date {
    color: var(--text-muted);
}

.last-post-link {
    color: var(--primary-color);
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.last-post-link:hover {
    background: var(--primary-color);
    color: white;
    transform: translateX(2px);
}

/* Pagination */
.pagination-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.pagination {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    text-decoration: none;
    color: var(--text-color);
    background: var(--card-bg);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.pagination-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

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

.pagination-dots {
    padding: 0.5rem;
    color: var(--text-muted);
}

.pagination-info {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(5deg); }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .forum-header {
        padding: 2rem 0;
        text-align: center;
    }
    
    .forum-header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .forum-title {
        font-size: 2rem;
    }
    
    .forum-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .featured-topics-grid {
        grid-template-columns: 1fr;
    }
    
    .search-form {
        flex-direction: column;
        align-items: stretch;
    }
    
    .search-group {
        min-width: auto;
    }
    
    .topic-item {
        grid-template-columns: 1fr;
        gap: 1rem;
        text-align: left;
    }
    
    .topic-stats {
        flex-direction: row;
        justify-content: space-around;
        min-width: auto;
    }
    
    .topic-last-post {
        min-width: auto;
        text-align: left;
    }
    
    .pagination-nav {
        flex-direction: column;
        text-align: center;
    }
    
    .pagination {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .forum-header {
        padding: 1.5rem 0;
        margin-bottom: 1rem;
    }
    
    .forum-title {
        font-size: 1.8rem;
    }
    
    .forum-subtitle {
        font-size: 1rem;
    }
    
    .forum-stats {
        grid-template-columns: 1fr;
    }
    
    .topic-item {
        padding: 1rem;
    }
    
    .topic-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .forum-header {
        background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    }
    
    .featured-topic-card::before {
        background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    }
}

/* Print Styles */
@media print {
    .forum-header,
    .forum-filters,
    .pagination-nav {
        display: none;
    }
    
    .topic-item {
        break-inside: avoid;
        border: 1px solid #ccc;
        margin-bottom: 1rem;
    }
    
    .topic-title a {
        color: #000 !important;
    }
}