/* Knowledge Base Page Styles */

/* KB Header */
.kb-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: var(--spacing-xxl) 0;
}

.kb-header h1 {
    color: white;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.kb-header p {
    font-size: 1.125rem;
    opacity: 0.9;
    margin-bottom: var(--spacing-xl);
}

/* KB Search Form */
.kb-search-form {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.search-input-group {
    display: flex;
    align-items: center;
    background: white;
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xs);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.search-input-group i {
    position: absolute;
    left: var(--spacing-lg);
    color: var(--gray-500);
    font-size: 1.125rem;
}

.search-input-group .form-control {
    flex: 1;
    border: none;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 50px;
    font-size: 1rem;
}

.search-input-group .form-control:focus {
    box-shadow: none;
}

.search-input-group .btn {
    border-radius: var(--border-radius);
    padding: var(--spacing-md) var(--spacing-xl);
    white-space: nowrap;
}

/* KB Stats */
.kb-stats {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

.stat-item i {
    font-size: 1.25rem;
}

/* KB Layout */
.kb-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

/* KB Sidebar */
.kb-sidebar {
    position: sticky;
    top: 80px;
    height: fit-content;
}

.kb-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.kb-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
    font-size: 1.125rem;
}

/* Category List */
.category-list {
    list-style: none;
    padding: 0;
}

.category-list li {
    margin-bottom: var(--spacing-xs);
}

.category-list a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--gray-700);
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.category-list a:hover {
    background: var(--gray-100);
    color: var(--primary-color);
}

.category-list a.active {
    background: var(--primary-color);
    color: white;
}

.category-list .count {
    margin-left: auto;
    font-size: 0.75rem;
    padding: 2px 8px;
    background: var(--gray-200);
    border-radius: 12px;
}

.category-list a.active .count {
    background: rgba(255, 255, 255, 0.2);
}

/* Popular List */
.popular-list {
    list-style: none;
    padding: 0;
}

.popular-list li {
    margin-bottom: var(--spacing-md);
}

.popular-list a {
    display: block;
    transition: all var(--transition-fast);
}

.popular-item {
    display: flex;
    gap: var(--spacing-sm);
    align-items: start;
}

.popular-item i {
    color: var(--primary-color);
    margin-top: 2px;
}

.popular-info {
    flex: 1;
}

.popular-title {
    display: block;
    color: var(--gray-800);
    font-size: 0.875rem;
    line-height: 1.4;
    margin-bottom: var(--spacing-xs);
}

.popular-meta {
    display: block;
    color: var(--gray-600);
    font-size: 0.75rem;
}

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

/* Help Card */
.help-card {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
}

.help-card h3 {
    color: white;
}

.help-card p {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.875rem;
}

.help-card .btn-outline {
    border-color: white;
    color: white;
}

.help-card .btn-outline:hover {
    background: white;
    color: var(--primary-color);
}

/* KB Content */
.kb-content {
    min-height: 500px;
}

.results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
}

.results-info p {
    margin: 0;
    color: var(--gray-700);
}

/* Articles Grid */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.article-card {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    display: flex;
    flex-direction: column;
}

.article-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.article-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    font-size: 0.75rem;
}

.article-category {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background: var(--primary-color);
    color: white;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
}

.article-views {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--gray-600);
}

.article-title {
    margin-bottom: var(--spacing-md);
}

.article-title a {
    color: var(--secondary-color);
    font-size: 1.125rem;
    line-height: 1.4;
}

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

.article-excerpt {
    color: var(--gray-600);
    font-size: 0.875rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    flex-grow: 1;
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.article-tags .tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    background: var(--gray-100);
    color: var(--gray-700);
    border-radius: var(--border-radius-sm);
    font-size: 0.75rem;
}

.article-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.article-date {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.75rem;
    color: var(--gray-600);
}

.read-more {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.875rem;
}

.read-more:hover {
    gap: var(--spacing-sm);
}

/* Quick Help Section */
.quick-help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.help-topic {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.help-topic:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-5px);
}

.help-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
}

.help-topic h3 {
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.help-topic p {
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 0;
}

.help-arrow {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    color: var(--primary-color);
    opacity: 0;
    transition: all var(--transition-base);
}

.help-topic:hover .help-arrow {
    opacity: 1;
    transform: translateX(5px);
}

/* Responsive */
@media (max-width: 992px) {
    .kb-layout {
        grid-template-columns: 1fr;
    }
    
    .kb-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .kb-header h1 {
        font-size: 2rem;
    }
    
    .search-input-group {
        flex-direction: column;
        padding: var(--spacing-sm);
    }
    
    .search-input-group .form-control {
        padding: var(--spacing-md);
    }
    
    .search-input-group i {
        display: none;
    }
    
    .search-input-group .btn {
        width: 100%;
    }
    
    .kb-stats {
        gap: var(--spacing-md);
    }
    
    .articles-grid {
        grid-template-columns: 1fr;
    }
    
    .results-header {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}