/**
 * Blog — index (page-blog.php) + single article (single.php).
 *
 * Extends the public marketing layer (layout-public.css + marketing.css). All
 * selectors are blog-* namespaced and lean on the shared design tokens
 * (variables.css), the .page-card shell (MARKETING-DESIGN-RULES §5), the
 * .page-grid layout, and the .page-prose reading column. Because the theme
 * dequeues GeneratePress + WP block CSS, this file also owns the typography of
 * editor (Gutenberg/classic) output inside .blog-article__body.
 */

/* =========================================================================
   INDEX — filter chips
   ========================================================================= */

.blog-filter {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-12);
}

.blog-filter__chip {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    line-height: 1;
    color: var(--color-text);
    background-color: var(--color-white);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-full);
    padding: var(--space-3) var(--space-5);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.blog-filter__chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.blog-filter__chip.is-active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-white);
}

.blog-filter__chip:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* =========================================================================
   INDEX — card grid
   ========================================================================= */

.blog-index__empty {
    font-size: var(--font-size-lg);
    line-height: var(--lh-lead);
    color: var(--color-text-muted);
    text-align: center;
    padding: var(--space-12) 0;
}

/* The blog card is a .page-card with the padding moved inward so the media
   can sit flush to the rounded edges. */
.blog-card {
    padding: 0;
    overflow: hidden;
    display: flex;
}

.blog-card[hidden] {
    display: none;
}

.blog-card__link {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    width: 100%;
}

.blog-card__media {
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background-color: var(--color-off-white);
}

.blog-card__media img,
.blog-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.blog-card__body {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    flex: 1;
}

.blog-card__meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    line-height: var(--lh-caption);
    color: var(--color-text-muted);
    margin: 0;
}

.blog-card__topic {
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
}

.blog-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
    margin: 0;
}

.blog-card__excerpt {
    font-size: var(--font-size-base);
    line-height: var(--lh-body);
    color: var(--color-text);
    margin: 0;
}

.blog-card__more {
    margin-top: auto;
    font-weight: var(--font-weight-medium);
    color: var(--color-primary);
}

.blog-card__link:hover .blog-card__title {
    color: var(--color-primary);
}

/* =========================================================================
   SINGLE ARTICLE
   ========================================================================= */

.blog-article__header {
    padding-top: var(--section-y);
}

.blog-article__meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    line-height: var(--lh-caption);
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
}

.blog-article__topic {
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: var(--font-size-xs);
    color: var(--color-primary);
}

.blog-article__title {
    font-size: clamp(var(--font-size-3xl), 4.5vw, var(--font-size-5xl));
    font-weight: var(--font-weight-bold);
    line-height: var(--lh-display);
    color: var(--color-secondary);
    margin: 0 0 var(--space-4);
}

.blog-article__standfirst {
    font-size: var(--font-size-lg);
    line-height: var(--lh-lead);
    color: var(--color-text-muted);
    margin: 0;
}

.blog-article__hero-media {
    margin-top: var(--space-12);
}

.blog-article__hero-img {
    width: 100%;
    height: auto;
    max-height: 520px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    display: block;
}

/* Reading column for the article body. Long-form content, so it uses the
   relaxed line-height (the one place on the marketing surface that does, by
   the same logic as legal prose). */
.blog-article__body {
    max-width: var(--col-prose);
    margin-inline: auto;
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text);
}

.blog-article__body > * + * {
    margin-top: var(--space-6);
}

.blog-article__body h2 {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
    margin-top: var(--space-12);
}

.blog-article__body h3 {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-secondary);
    margin-top: var(--space-8);
}

.blog-article__body a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-article__body ul,
.blog-article__body ol {
    padding-left: var(--space-6);
}

.blog-article__body li + li {
    margin-top: var(--space-2);
}

.blog-article__body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
}

.blog-article__body blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: var(--space-6);
    margin-left: 0;
    color: var(--color-text-muted);
    font-style: italic;
}

.blog-article__body figcaption {
    font-size: var(--font-size-sm);
    line-height: var(--lh-caption);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
    text-align: center;
}

.blog-article__body code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.9em;
    background-color: var(--color-off-white);
    border: 1px solid var(--border-color-light);
    border-radius: var(--radius-sm);
    padding: 0.1em 0.35em;
}

.blog-article__body hr {
    border: 0;
    border-top: 1px solid var(--border-color-light);
    margin: var(--space-12) 0;
}

.blog-article__footer {
    padding: var(--space-12) 0 var(--section-y);
}