/* Blog (templates/blog/index.html and post.html). Site edu-theme tokens only.
   Layout follows the familiar editorial-blog pattern: a compact hero, two
   featured articles, a call-to-action strip, audience filter tabs and a grid
   of cards. Each card has generated cover art (blog.py cover_svg). */

.blog-wrap {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ---------- index ---------- */

.blog-hero {
    padding: 44px 0 34px;
    background: var(--chalk-mesh, var(--primary-dark));
    border-bottom: 1px solid var(--hairline);
}

.blog-hero h1 {
    font-size: clamp(2rem, 4vw, 2.6rem);
    margin: 0 0 8px;
    color: var(--text-primary);
}

.blog-hero p {
    margin: 0;
    max-width: 60ch;
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.blog-main { padding-top: 36px; padding-bottom: 72px; }

.blog-featured {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 24px;
}

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

.blog-card {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--secondary-dark);
    border: 1px solid var(--hairline);
    border-radius: 14px;
    overflow: hidden;
    color: inherit;
    text-decoration: none;
    transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}

.blog-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 14px 30px -18px rgba(40, 20, 30, 0.35);
    transform: translateY(-2px);
}

.blog-card:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 3px; }

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

.blog-card-cover {
    display: block;
    aspect-ratio: 5 / 3;
    background: var(--tertiary-dark);
    overflow: hidden;
}

.blog-card--feature .blog-card-cover { aspect-ratio: 16 / 8; }

.blog-card-cover svg,
.blog-article-cover svg {
    display: block;
    width: 100%;
    height: 100%;
}

.blog-card-body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 18px 20px 20px;
    flex: 1;
}

.blog-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 4px 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.blog-tag {
    font-weight: 700;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 2px 9px;
    border-radius: 999px;
    background: var(--tertiary-dark);
    color: var(--text-secondary);
}

.blog-tag--students { background: rgba(150, 48, 95, 0.1); color: var(--accent-deep); }
.blog-tag--teachers { background: rgba(47, 122, 107, 0.13); color: var(--accent-green); }
.blog-tag--parents { background: rgba(217, 164, 65, 0.2); color: #7a5712; }
.blog-tag--leaders { background: rgba(59, 47, 74, 0.12); color: #3b2f4a; }

.blog-card-title {
    margin: 0;
    font-family: var(--font-display, inherit);
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
    text-wrap: balance;
}

.blog-card--feature .blog-card-title { font-size: 1.55rem; }

.blog-card-dek {
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--text-secondary);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.blog-card-link {
    margin-top: auto;
    padding-top: 6px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-deep);
}

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

.blog-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px 32px;
    flex-wrap: wrap;
    margin: 40px 0;
    padding: 26px 30px;
    border-radius: 14px;
    background: var(--tertiary-dark);
    border: 1px solid var(--hairline);
}

.blog-cta h2 { margin: 0 0 4px; font-size: 1.3rem; color: var(--text-primary); }
.blog-cta p { margin: 0; max-width: 56ch; color: var(--text-secondary); line-height: 1.55; }

.blog-cta-btn {
    flex: none;
    background: var(--accent-blue);
    color: #fff;
    text-decoration: none;
    font-weight: 700;
    padding: 12px 22px;
    border-radius: 999px;
}

.blog-cta-btn:hover { background: var(--accent-deep); }
.blog-cta-btn:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 3px; }

.blog-all-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px 24px;
    margin-bottom: 20px;
}

.blog-all-head h2 { margin: 0; font-size: 1.5rem; color: var(--text-primary); }
.blog-filters[hidden] { display: none; }

.blog-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.blog-filter {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--secondary-dark);
    border: 1px solid var(--hairline);
    border-radius: 999px;
    padding: 6px 14px;
    font: inherit;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
}

.blog-filter span {
    font-size: 0.76rem;
    color: var(--text-muted);
    font-variant-numeric: tabular-nums;
}

.blog-filter:hover { border-color: var(--accent-blue); color: var(--accent-deep); }
.blog-filter:focus-visible { outline: 2px solid var(--accent-blue); outline-offset: 2px; }

.blog-filter.is-active {
    background: var(--accent-blue);
    border-color: var(--accent-blue);
    color: #fff;
}

.blog-filter.is-active span { color: rgba(255, 255, 255, 0.85); }

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
}

.blog-empty { color: var(--text-muted); margin: 24px 0; }
.blog-empty[hidden] { display: none; }

/* ---------- post ---------- */

.blog-post-wrap { padding-top: 40px; padding-bottom: 72px; }

.blog-article {
    max-width: 740px;
    margin: 0 auto;
}

.blog-back {
    display: inline-block;
    margin-bottom: 18px;
    font-size: 0.9rem;
    color: var(--text-muted);
    text-decoration: none;
}

.blog-back:hover { color: var(--accent-blue); }

.blog-article-meta { margin-bottom: 10px; }

.blog-article h1 {
    font-size: clamp(2rem, 4vw, 2.7rem);
    line-height: 1.15;
    margin: 0 0 14px;
    text-wrap: balance;
}

.blog-article .blog-dek {
    font-size: 1.2rem;
    line-height: 1.55;
    color: var(--text-secondary);
    margin: 0 0 22px;
}

.blog-article-cover {
    aspect-ratio: 16 / 7;
    border-radius: 14px;
    overflow: hidden;
    margin-bottom: 30px;
    border: 1px solid var(--hairline);
}

.blog-article-body { font-size: 1.06rem; line-height: 1.75; }
.blog-article-body h2 { font-size: 1.55rem; margin: 2.2rem 0 0.75rem; }
.blog-article-body h3 { font-size: 1.22rem; margin: 1.6rem 0 0.5rem; }
.blog-article-body p { margin: 0 0 1.15rem; overflow-wrap: anywhere; }
.blog-article-body ul, .blog-article-body ol { margin: 0 0 1.15rem 1.4rem; }
.blog-article-body li { margin-bottom: 0.45rem; }

.blog-article-body blockquote {
    margin: 1.4rem 0;
    padding: 0.7rem 1.1rem;
    border-left: 3px solid var(--accent-blue);
    background: var(--tertiary-dark);
    border-radius: 0 10px 10px 0;
    color: var(--text-primary);
}

.blog-article-body blockquote p { margin: 0.3rem 0; }

.blog-article-body table {
    display: block;
    overflow-x: auto;
    max-width: 100%;
    border-collapse: collapse;
    margin: 1.4rem 0;
    font-size: 0.94rem;
    line-height: 1.5;
}

.blog-article-body th,
.blog-article-body td {
    text-align: left;
    vertical-align: top;
    padding: 9px 12px;
    border: 1px solid var(--hairline);
    min-width: 8rem;
}

.blog-article-body th { background: var(--tertiary-dark); color: var(--text-primary); }

.blog-article-body code {
    font-size: 0.9em;
    background: var(--tertiary-dark);
    padding: 1px 5px;
    border-radius: 4px;
}

.blog-related {
    max-width: 1180px;
    margin: 64px auto 0;
    padding-top: 36px;
    border-top: 1px solid var(--hairline);
}

.blog-related h2 { font-size: 1.5rem; margin: 0 0 20px; color: var(--text-primary); }

@media (max-width: 800px) {
    .blog-featured { grid-template-columns: minmax(0, 1fr); }
    .blog-wrap { padding: 0 16px; }
    .blog-hero { padding: 32px 0 26px; }
    .blog-cta { padding: 20px; }
    .blog-grid { grid-template-columns: minmax(0, 1fr); }
}

@media (prefers-reduced-motion: reduce) {
    .blog-card { transition: none; }
    .blog-card:hover { transform: none; }
}

.blog-article .blog-byline {
    margin: 0.25rem 0 1rem;
    font-size: 0.9rem;
    color: var(--text-muted, #6b6473);
}