:root {
    --primary-color: #3a7bd5;
    --background-color: #f4f4f9;
    --text-color: #333;
    --card-background: #fff;
    --border-color: #ddd;
    --header-background: #fff;
    --muted-color: #6b7280;
}

[data-theme="dark"] {
    --primary-color: #00d2ff;
    --background-color: #1a1a2e;
    --text-color: #e0e0e0;
    --card-background: #16213e;
    --border-color: #333;
    --header-background: #16213e;
    --muted-color: #9ca3af;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    background-color: var(--header-background);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-bottom: 2rem;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.header-nav {
    display: flex;
    gap: 0.75rem;
}

.header .logo, .logo {
    font-size: 1.6rem;
    font-weight: 800;
    text-decoration: none;
    color: var(--primary-color);
    letter-spacing: 0.5px;
}

.header-subtitle {
    color: var(--muted-color);
    font-size: 0.95rem;
}

.page-lead {
    margin: 0.5rem 0 1.5rem;
    color: var(--muted-color);
    font-size: 1rem;
}

.articles {
    display: grid;
    gap: 1.5rem;
}

.article-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    transition: box-shadow 0.3s;
}

.article-card:hover {
    box-shadow: 0 6px 16px rgba(0,0,0,0.08);
}

.article-card h2 {
    font-size: 1.35rem;
    margin-bottom: 0.6rem;
}

.article-summary {
    font-size: 0.98rem;
    color: var(--text-color);
    opacity: 0.85;
    margin: 0.25rem 0 0;
}

.article-meta-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.6rem;
    border-radius: 999px;
    background-color: rgba(58, 123, 213, 0.12);
    color: var(--text-color);
    font-size: 0.9rem;
    font-weight: 600;
}

.category-badge {
    color: #fff;
    background-color: var(--primary-color);
}

.pill-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.pill {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    background-color: rgba(0,0,0,0.05);
    color: var(--text-color);
    font-size: 0.85rem;
}

.status {
    font-weight: 700;
    border: 1px solid transparent;
}

.status--published { background-color: rgba(46, 204, 113, 0.12); color: #2ecc71; border-color: rgba(46, 204, 113, 0.4); }
.status--moderation { background-color: rgba(243, 156, 18, 0.12); color: #f39c12; border-color: rgba(243, 156, 18, 0.4); }
.status--new { background-color: rgba(58, 123, 213, 0.12); color: #3a7bd5; border-color: rgba(58, 123, 213, 0.4); }
.status--rejected { background-color: rgba(231, 76, 60, 0.12); color: #e74c3c; border-color: rgba(231, 76, 60, 0.4); }
.status--processing { background-color: rgba(155, 89, 182, 0.12); color: #9b59b6; border-color: rgba(155, 89, 182, 0.4); }
.status--duplicate { background-color: rgba(127, 140, 141, 0.12); color: #7f8c8d; border-color: rgba(127, 140, 141, 0.4); }

.article-meta {
    margin-top: 1rem;
    font-size: 0.9rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem 1rem;
    align-items: baseline;
    color: var(--muted-color);
}

.article-meta-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.meta-label {
    font-weight: 700;
    color: var(--text-color);
    display: block;
}

.tag-list {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    padding: 0.3rem 0.65rem;
    border-radius: 8px;
    background-color: rgba(58, 123, 213, 0.12);
    color: var(--primary-color);
    font-size: 0.85rem;
    font-weight: 700;
}

.article-full h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.article-full .article-summary {
    font-size: 1.05rem;
}

.panel {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: 10px;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
}

.panel h3 {
    margin-bottom: 0.5rem;
}

.panel-muted {
    background-color: rgba(0,0,0,0.02);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    flex-wrap: wrap;
    margin: 1rem 0 1.5rem;
}

.section-title {
    margin-top: 0.25rem;
    font-size: 1.5rem;
}

.section-lead {
    margin-top: 0.35rem;
    color: var(--muted-color);
}

.eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 700;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.button {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.65rem 1rem;
    border-radius: 10px;
    background-color: var(--primary-color);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.button:hover {
    box-shadow: 0 6px 14px rgba(0,0,0,0.14);
    transform: translateY(-1px);
}

.clusters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.clusters-grid--wide {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.cluster-card {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.1rem 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    transition: box-shadow 0.2s ease;
}

.cluster-card:hover {
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
}

.cluster-meta-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
}

.cluster-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--text-color);
    text-decoration: none;
}

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

.cluster-summary {
    color: var(--muted-color);
    line-height: 1.6;
    margin: 0.15rem 0 0.35rem;
}

.cluster-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    font-size: 0.95rem;
}

.cluster-hero {
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.cluster-meta-line {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem 1.5rem;
}

.pill-muted {
    background-color: rgba(0,0,0,0.04);
    color: var(--muted-color);
}

.text-link {
    color: var(--primary-color);
    font-weight: 700;
    text-decoration: none;
}

.text-link:hover {
    text-decoration: underline;
}

footer {
    text-align: center;
    margin-top: 3rem;
    padding: 1rem;
    font-size: 0.9rem;
    color: var(--muted-color);
}

.link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

.button--small {
    padding: 0.45rem 0.85rem;
    font-size: 0.9rem;
}

.button--outline {
    background-color: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.button--outline:hover {
    background-color: var(--primary-color);
    color: #fff;
}

.article-actions {
    margin-top: 1.25rem;
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.article-card h2 a {
    color: var(--text-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.article-card h2 a:hover {
    color: var(--primary-color);
}

@media (max-width: 768px) {
    .container {
        padding: 1.25rem;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
    }
}