/* Blog Utility Classes */

/* Display utilities */
.hidden {
    display: none !important;
}

.inline-form {
    display: inline !important;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Text alignment */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

/* Image utilities */
.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Link utilities */
.link-plain {
    text-decoration: none;
    color: inherit;
}

.link-plain:hover {
    text-decoration: none;
}

/* Placeholder backgrounds */
.placeholder-gradient {
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3rem;
    color: white;
}

/* Chart caption */
.chart-caption {
    text-align: center;
    color: var(--gray-600);
    margin-top: 12px;
    font-size: 0.875rem;
}

[data-theme="dark"] .chart-caption {
    color: var(--gray-400);
}

/* Search hint */
.search-hint {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Search results badge */
.search-results-badge {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--primary-50);
    border-radius: 12px;
    text-align: center;
}

[data-theme="dark"] .search-results-badge {
    background: rgba(102, 126, 234, 0.1);
}

.search-results-text {
    color: var(--primary-700);
    font-weight: 600;
}

[data-theme="dark"] .search-results-text {
    color: var(--primary-300);
}

/* Category hint */
.category-hint {
    text-align: center;
    margin-top: 0.5rem;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Tag disabled state */
.tag-disabled {
    opacity: 0.5;
    cursor: default;
    pointer-events: none;
}

/* Card link wrapper */
.card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: transform 0.3s ease;
}

.card-link:hover {
    transform: translateY(-4px);
}

/* Icon sizes */
.icon-sm {
    font-size: 1rem;
}

.icon-md {
    font-size: 1.5rem;
}

.icon-lg {
    font-size: 2rem;
}

.icon-xl {
    font-size: 3rem;
}

/* Spacing utilities */
.mt-32 {
    margin-top: 32px;
}

.mb-16 {
    margin-bottom: 16px;
}

.gap-12 {
    gap: 12px;
}

/* Category card styles (from article_list.html) */
.categories-section {
    padding: 40px 0;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.category-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    transition: all 0.3s ease;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.category-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.category-title {
    margin: 0;
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 600;
}

.category-description {
    color: var(--text-muted);
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
}

.category-meta {
    margin-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 14px;
}

/* Additional utility classes for removing inline styles */

/* Section spacing */
.section-pad-60 {
    padding: 60px 0;
}

.section-bg-secondary {
    background: var(--bg-secondary);
}

/* Article card placeholder */
.article-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
}

/* Author avatar placeholder */
.author-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--primary-500), var(--primary-700));
    color: white;
}

/* Series placeholder */
.series-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    font-size: 3.5rem;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
}

/* Tag styles */
.tag-disabled {
    opacity: 0.5;
    cursor: default;
}

.tag-icon-lg {
    font-size: 1.5rem;
}

/* Search results */
.search-results-info {
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--primary-50);
    border-radius: 12px;
    display: none;
    text-align: center;
}

.search-results-count {
    color: var(--primary-700);
    font-weight: 600;
}

/* Hints */
.search-hint, .category-hint {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.category-hint {
    margin-top: 0.5rem;
    font-size: 0.875rem;
}

/* Series progress */
.series-meta-spacing {
    margin-top: 16px;
}

.series-card-dimmed {
    opacity: 0.7;
}

/* Margin utilities */
.mt-32 {
    margin-top: 32px;
}

.mt-12 {
    margin-top: 12px;
}

/* Text color utilities */
.text-muted {
    color: var(--text-muted);
}

.text-gray-600 {
    color: var(--gray-600);
}

/* Search highlight */
.search-highlight {
    background: var(--primary-500);
    color: white;
    padding: 2px 4px;
    border-radius: 4px;
}

/* Dark theme overrides */
[data-theme="dark"] .category-card {
    background: var(--card-bg-dark);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .category-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .search-results-info {
    background: rgba(102, 126, 234, 0.1);
}

[data-theme="dark"] .search-results-count {
    color: var(--primary-400);
}