/**
 * articles.css — Article listing page (/articles): terminal-style table,
 * search bar, tag filter pills, sort controls, encrypted list view.
 */
/* Extracted from style.css */

/* ==================== 文章检索页 ==================== */
#articles {
    max-width: 800px;
    margin: 0 auto;
    padding: 120px 24px 40px;
}

#articles .articles-topbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.articles-logo {
    font-size: 2rem;
    color: var(--accent-primary);
}

.table-header {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 0;
    margin-bottom: 0;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    overflow: hidden;
}

.table-header .sort-col {
    padding: 10px 16px;
    cursor: pointer;
    user-select: none;
    transition: color var(--transition-fast), background var(--transition-fast);
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.table-header .sort-col:hover {
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.05);
}

.table-header .sort-col.active {
    color: var(--accent-primary);
}

.table-header .sort-arrow {
    font-size: 0.65rem;
    opacity: 0.6;
}

.table-header .col-date { flex: 0 0 130px; }
.table-header .col-title { flex: 1; }
.table-header .col-tags { flex: 0 0 160px; text-align: right; }

.search-box {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 10px 16px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
    transition: border-color var(--transition-fast);
}

.search-box:focus {
    border-color: var(--accent-primary);
}

.search-box::placeholder {
    color: var(--text-dim);
}

#articles .articles-list {
    margin-bottom: 24px;
}

.article-row {
    display: flex;
    align-items: baseline;
    padding: 12px 0;
    border-bottom: 1px solid #1a1a1a;
    cursor: pointer;
    transition: background 0.15s;
}

.article-row:hover {
    background: #141414;
}

.article-date {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #666;
    min-width: 110px;
    flex-shrink: 0;
}

.article-separator {
    color: #333;
    margin: 0 12px;
    flex-shrink: 0;
}

.article-title {
    color: #e0e0e0;
    flex: 1;
    font-size: 0.95rem;
}

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

.article-tags {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.article-tag {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-primary);
    cursor: pointer;
    padding: 2px 8px;
    background: rgba(var(--accent-primary-rgb), 0.06);
    border: 1px solid rgba(var(--accent-primary-rgb), 0.1);
    border-radius: 4px;
    transition: all var(--transition-fast);
}

.article-tag:hover {
    background: rgba(var(--accent-primary-rgb), 0.12);
    border-color: var(--accent-primary);
    text-decoration: none;
}

:root[data-theme="light"] .article-tag {
    background: rgba(10, 125, 79, 0.06);
    border-color: rgba(10, 125, 79, 0.12);
    color: var(--accent-primary);
}

:root[data-theme="light"] .article-tag:hover {
    background: rgba(10, 125, 79, 0.12);
}

.articles-empty {
    margin-top: 24px;
    margin-bottom: 8px;
}

.no-results {
    color: #666;
    font-family: var(--font-mono);
    padding: 12px 0;
    text-align: center;
}

.articles-match-count {
    margin-top: -8px;
    margin-bottom: 12px;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-align: center;
}

.tag-filter {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.filter-status {
    display: none;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.filter-status.visible { display: flex; }

.filter-status .clear-filters {
    color: var(--accent-primary);
    cursor: pointer;
    border: none;
    background: none;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0;
}

.filter-status .clear-filters:hover {
    text-decoration: underline;
}

.filter-mode-toggle {
    display: inline-flex;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
    margin: 0 2px;
}

.filter-mode-toggle .mode-option {
    padding: 2px 10px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.06em;
    border-right: 1px solid var(--border-subtle);
}

.filter-mode-toggle .mode-option:last-child {
    border-right: none;
}

.filter-mode-toggle .mode-option:hover {
    color: var(--text-primary);
    background: rgba(var(--accent-primary-rgb), 0.05);
}

.filter-mode-toggle .mode-option.active {
    color: var(--bg-primary);
    background: var(--accent-primary);
    box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.25);
}

:root[data-theme="light"] .filter-mode-toggle .mode-option.active {
    color: #ffffff;
}

.tag-btn {
    position: relative;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-secondary);
    padding: 6px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.8125rem;
    transition: all var(--transition-fast);
    box-shadow:
        inset 0 0 0 0 rgba(var(--accent-primary-rgb), 0.1),
        0 0 0 0 rgba(var(--accent-primary-rgb), 0);
}

.tag-btn:hover {
    border-color: var(--border-accent);
    color: var(--text-primary);
    background: rgba(var(--accent-primary-rgb), 0.03);
    box-shadow:
        inset 0 0 0 1px rgba(var(--accent-primary-rgb), 0.15),
        0 0 15px rgba(var(--accent-primary-rgb), 0.05);
}

.tag-btn.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.08);
    box-shadow:
        inset 0 0 0 1px rgba(var(--accent-primary-rgb), 0.2),
        0 0 20px rgba(var(--accent-primary-rgb), 0.1);
    animation: tag-glow 3s ease-in-out infinite;
}

@keyframes tag-glow {
    0%, 100% {
        box-shadow:
            inset 0 0 0 1px rgba(var(--accent-primary-rgb), 0.15),
            0 0 15px rgba(var(--accent-primary-rgb), 0.05);
    }
    50% {
        box-shadow:
            inset 0 0 0 1px rgba(var(--accent-primary-rgb), 0.25),
            0 0 25px rgba(var(--accent-primary-rgb), 0.1);
    }
}

.tag-btn.selected {
    border-color: var(--accent-primary) !important;
    color: var(--accent-primary) !important;
    background: rgba(var(--accent-primary-rgb), 0.12) !important;
    box-shadow:
        inset 0 0 0 1px rgba(var(--accent-primary-rgb), 0.2),
        0 0 15px rgba(var(--accent-primary-rgb), 0.08) !important;
}

:root[data-theme="light"] .tag-btn {
    border-color: #e0e0e0;
}

:root[data-theme="light"] .tag-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

:root[data-theme="light"] .tag-btn.active {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.08);
}

.exit-btn {
    background: rgba(var(--accent-error-rgb), 0.08);
    border: 1px solid rgba(var(--accent-error-rgb), 0.2);
    color: var(--accent-error);
    padding: 6px 14px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.exit-btn:hover {
    background: rgba(var(--accent-error-rgb), 0.15);
    border-color: var(--accent-error);
}

.tag-filter-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 10px 12px;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    transition: all var(--transition-fast);
    white-space: nowrap;
    flex-shrink: 0;
}

.tag-filter-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.tag-filter-btn.has-selection {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.08);
    box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.1);
}

.tag-filter-count {
    position: absolute;
    top: -6px;
    right: -6px;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    border-radius: 9px;
    background: var(--accent-primary);
    color: var(--bg-primary);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.tag-popup-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fade-in 0.15s ease;
}

.tag-popup {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: 10px;
    width: 380px;
    max-width: 90vw;
    max-height: 70vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    animation: popup-slide 0.2s ease;
}

@keyframes popup-slide {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.tag-popup-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border-subtle);
}

.tag-popup-title {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-primary);
    letter-spacing: 0.04em;
}

.tag-popup-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    border-radius: 6px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    padding: 0;
}

.tag-popup-close:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    background: rgba(var(--accent-primary-rgb), 0.05);
}

.tag-popup-search {
    padding: 12px 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.tag-search-input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    outline: none;
    transition: border-color var(--transition-fast);
    box-sizing: border-box;
}

.tag-search-input:focus {
    border-color: var(--accent-primary);
}

.tag-search-input::placeholder {
    color: var(--text-dim);
}

.tag-popup-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 20px;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-content: flex-start;
}

.tag-popup-body .tag-btn {
    font-size: 0.78rem;
    padding: 5px 14px;
}

.tag-popup-body .tag-btn.no-match {
    display: none;
}

.tag-popup-no-results {
    width: 100%;
    text-align: center;
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    padding: 20px 0;
}

.tag-popup-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    border-top: 1px solid var(--border-subtle);
}

.tag-popup-mode {
    display: inline-flex;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    overflow: hidden;
}

.tag-popup-mode .mode-option {
    padding: 4px 14px;
    font-family: var(--font-mono);
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
    letter-spacing: 0.06em;
    border-right: 1px solid var(--border-subtle);
    user-select: none;
}

.tag-popup-mode .mode-option:last-child {
    border-right: none;
}

.tag-popup-mode .mode-option:hover {
    color: var(--text-primary);
    background: rgba(var(--accent-primary-rgb), 0.05);
}

.tag-popup-mode .mode-option.active {
    color: var(--bg-primary);
    background: var(--accent-primary);
    box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.25);
}

:root[data-theme="light"] .tag-popup-mode .mode-option.active {
    color: #ffffff;
}

.tag-popup-clear {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
    user-select: none;
}

.tag-popup-clear:hover {
    color: var(--accent-error);
}

.tag-popup-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tag-popup-confirm {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--accent-primary);
    cursor: pointer;
    transition: all var(--transition-fast);
    user-select: none;
    padding: 4px 14px;
    border: 1px solid var(--accent-primary);
    border-radius: 6px;
    background: rgba(var(--accent-primary-rgb), 0.08);
}

.tag-popup-confirm:hover {
    background: rgba(var(--accent-primary-rgb), 0.18);
    box-shadow: 0 0 12px rgba(var(--accent-primary-rgb), 0.15);
}

/* ==================== 文章列表页面 ==================== */
.articles-container {
    position: relative;
    z-index: 10;
    min-height: 100vh;
    padding: 100px 20px 20px;
    animation: fade-in 0.5s ease;
}

.articles-container .articles-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 800px;
    margin: 0 auto 40px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-subtle);
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: transparent;
    border: 1px solid var(--border-subtle);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.back-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
}

.category-title {
    font-size: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.article-count {
    font-size: 13px;
    color: var(--text-muted);
}

.articles-container .articles-list {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    min-height: calc(100vh - 200px);
}
/* ==================== 文章元信息 ==================== */
.article-meta {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 8px 0 32px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.article-meta-date {
    color: var(--text-muted);
    margin-right: 2px;
}

.article-category {
    padding: 3px 10px;
    background: rgba(var(--accent-primary-rgb), 0.08);
    color: var(--accent-primary);
    border: 1px solid rgba(var(--accent-primary-rgb), 0.12);
    border-radius: 4px;
    font-size: 0.8rem;
}

:root[data-theme="light"] .article-category {
    background: rgba(10, 125, 79, 0.08);
    border-color: rgba(10, 125, 79, 0.15);
    color: var(--accent-primary);
}

.article-category.public-category {
    background: rgba(var(--accent-secondary-rgb), 0.15);
    color: var(--accent-secondary);
}

.article-date {
    color: var(--text-muted);
    line-height: 28px;
}
/* ==================== 文章元信息增强 ==================== */
.article-meta-stats {
    display: flex;
    gap: var(--space-md);
}

.word-count::after {
    content: '·';
    margin-left: var(--space-md);
    opacity: 0.5;
}
/* ==================== 上下篇导航 ==================== */
.post-navigation {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
    margin-top: var(--space-2xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-subtle);
}

.post-nav-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.post-nav-item:last-child {
    text-align: right;
}

.post-nav-item.empty {
    opacity: 0.3;
}

.post-nav-label {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-nav-title {
    font-size: 14px;
    color: var(--text-primary);
    text-decoration: none;
    line-height: 1.4;
    transition: color var(--transition-fast);
}

.post-nav-title:hover {
    color: var(--accent-primary);
}

@media (max-width: 640px) {
    .post-navigation {
        grid-template-columns: 1fr;
    }

    .post-nav-item:last-child {
        text-align: left;
    }

    .tag-btn {
        padding: 10px 14px;
        min-height: 44px;
        font-size: 0.8rem;
    }

    .sort-col {
        padding: 10px 12px;
        min-height: 44px;
        font-size: 0.7rem;
    }

    .article-row {
        padding: 12px 8px;
        min-height: 44px;
    }
}