/* ==========================================================================
   ARTICLE — Single post reading experience
   ========================================================================== */

/* --------------------------------------------------------------------------
   Article Header
   -------------------------------------------------------------------------- */
.article-header {
    padding-top: var(--space-md);
    padding-bottom: var(--space-xl);
    border-bottom: 1px solid var(--color-border);
    max-width: var(--container-narrow);
    margin-inline: auto;
}

.article-header__breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-faint);
    flex-wrap: wrap;
}

.article-header__breadcrumb a { color: var(--color-text-muted); }
.article-header__breadcrumb a:hover { color: var(--color-accent); }
.article-header__breadcrumb .sep { opacity: 0.5; }

.article-header__section {
    margin-bottom: var(--space-md);
}

.article-header__title {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.15;
    color: var(--color-heading);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.article-header__subtitle {
    font-family: var(--font-body);
    font-size: 1.2rem;
    font-style: italic;
    color: var(--color-text-muted);
    line-height: 1.6;
    margin-bottom: var(--space-lg);
}

.article-header__meta {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    flex-wrap: wrap;
}

.article-header__author {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-family: var(--font-ui);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text);
}

.article-header__author-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--color-border);
}

.article-meta-divider {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--color-border);
    flex-shrink: 0;
}

.article-header__date,
.article-header__read-time {
    font-family: var(--font-ui);
    font-size: 0.8rem;
    color: var(--color-text-faint);
}

/* --------------------------------------------------------------------------
   Article Hero Image
   -------------------------------------------------------------------------- */
.article-hero-image {
    width: 100%;
    max-width: var(--container-mid);
    margin-inline: auto;
    margin-block: var(--space-xl);
}

.article-hero-image img {
    width: 100%;
    border-radius: var(--radius-lg);
    aspect-ratio: 16 / 9;
    object-fit: cover;
}

.article-hero-image figcaption {
    margin-top: var(--space-sm);
    font-size: 0.8rem;
    color: var(--color-text-faint);
    text-align: center;
    font-style: italic;
}

/* --------------------------------------------------------------------------
   Article Body
   -------------------------------------------------------------------------- */
.article-body {
    max-width: var(--container-narrow);
    margin-inline: auto;
    padding-block: var(--space-xl);
}

.article-body p {
    font-family: var(--font-body);
    font-size: 1.1rem;
    line-height: 1.85;
    color: var(--color-text);
    margin-bottom: 1.6em;
}

.article-body h2 {
    font-size: 1.7rem;
    margin-top: 2em;
    margin-bottom: 0.6em;
}

.article-body h3 {
    font-size: 1.3rem;
    margin-top: 1.8em;
    margin-bottom: 0.5em;
}

.article-body h4 {
    font-size: 1.1rem;
    font-family: var(--font-ui);
    margin-top: 1.5em;
}

.article-body a {
    color: var(--color-accent);
    text-decoration: underline;
    text-decoration-color: rgba(var(--color-accent-rgb), 0.4);
    text-underline-offset: 3px;
}

.article-body a:hover {
    text-decoration-color: var(--color-accent);
}

.article-body ul,
.article-body ol {
    font-family: var(--font-body);
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--color-text);
    padding-left: 1.5rem;
    margin-bottom: 1.4em;
    list-style: revert;
}

.article-body li { margin-bottom: 0.4em; }

.article-body img {
    border-radius: var(--radius-md);
    margin-block: var(--space-lg);
}

.article-body blockquote {
    margin-block: var(--space-xl);
}

/* In-article image gallery */
.article-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: var(--space-sm);
    margin-block: var(--space-xl);
}

.article-gallery img {
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-md);
    width: 100%;
    cursor: zoom-in;
    transition: transform var(--transition-base);
}

.article-gallery img:hover { transform: scale(1.02); }

/* --------------------------------------------------------------------------
   Author Bio
   -------------------------------------------------------------------------- */
.author-bio {
    max-width: var(--container-narrow);
    margin-inline: auto;
    margin-top: var(--space-2xl);
    padding: var(--space-xl);
    background: var(--color-bg-subtle);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    display: flex;
    gap: var(--space-xl);
}

.author-bio__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    border: 3px solid var(--color-border);
}

.author-bio__avatar-placeholder {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--color-bg-card);
    border: 2px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-family: var(--font-serif);
    font-size: 1.8rem;
    color: var(--color-text-faint);
}

.author-bio__label {
    font-family: var(--font-ui);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-accent);
    margin-bottom: var(--space-xs);
}

.author-bio__name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-heading);
    margin: 0 0 var(--space-sm);
}

.author-bio__text {
    font-family: var(--font-ui);
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.7;
    margin: 0;
}

/* --------------------------------------------------------------------------
   Article Footer — Tags, Share, Copyright
   -------------------------------------------------------------------------- */
.article-footer {
    max-width: var(--container-narrow);
    margin-inline: auto;
    padding-top: var(--space-xl);
    margin-top: var(--space-xl);
    border-top: 1px solid var(--color-border);
}

.article-copyright {
    font-family: var(--font-ui);
    font-size: 0.78rem;
    color: var(--color-text-faint);
    margin-top: var(--space-md);
    padding: var(--space-md);
    background: var(--color-bg-subtle);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Related Articles
   -------------------------------------------------------------------------- */
.related-articles {
    padding-block: var(--space-2xl);
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-subtle);
}

.related-articles .container--narrow {
    max-width: var(--container-mid);
}

.related-articles h2 {
    font-size: 1.4rem;
    margin-bottom: var(--space-xl);
}

.related-articles__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 640px) {
    .author-bio {
        flex-direction: column;
        gap: var(--space-md);
    }

    .related-articles__grid {
        grid-template-columns: 1fr;
    }

    .article-body p {
        font-size: 1rem;
    }
}