/* ================================================
   BLOG — shared styles for blog.html and all posts
   Inherits: style.css, responsive.css, boot.css
================================================== */

/* ── Blog page hero (narrower than main hero) ── */
.blog-hero {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 120px 0 60px;
}

.blog-hero h1 {
    font-size: 42px;
    font-weight: 800;
    color: var(--text);
    margin: 0 0 12px;
}

.blog-hero .blog-hero-sub {
    font-size: 16px;
    color: var(--muted);
    margin: 0;
    max-width: 560px;
}

/* Back link used on both blog.html and post pages */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 28px;
    transition: color 0.2s ease;
}

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

/* ── Category filter pills ── */
.blog-filters {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin: 40px 0 48px;
}

.filter-pill {
    display: inline-block;
    padding: 6px 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    border-radius: 20px;
    border: 1px solid var(--border);
    color: var(--muted);
    background: var(--bg-card);
    cursor: pointer;
    transition: all 0.18s ease;
    user-select: none;
}

.filter-pill:hover,
.filter-pill.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(0, 180, 216, 0.08);
}

/* ── Post card grid ── */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 80px;
}

.post-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: border-color 0.2s ease, transform 0.2s ease;
    text-decoration: none;
}

.post-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}

/* Optional cover image */
.post-card-img {
    width: 100%;
    aspect-ratio: 16 / 9;
    object-fit: cover;
    display: block;
    border-bottom: 1px solid var(--border);
}

.post-card-img-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #0d2137 0%, #012456 100%);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    color: rgba(0, 180, 216, 0.3);
}

.post-card-body {
    padding: 22px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 10px;
}

.post-card-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.post-category {
    display: inline-block;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 3px 10px;
    border-radius: 20px;
    background: rgba(0, 180, 216, 0.12);
    color: var(--accent);
    border: 1px solid rgba(0, 180, 216, 0.25);
}

.post-date {
    font-size: 12px;
    color: var(--muted);
}

.post-card h2 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin: 0;
    line-height: 1.4;
}

.post-card p {
    font-size: 13px;
    color: var(--muted);
    line-height: 1.65;
    margin: 0;
    flex: 1;
    /* clamp to 3 lines */
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.post-read-more {
    font-size: 12px;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-top: 4px;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: gap 0.15s ease;
}

.post-card:hover .post-read-more {
    gap: 8px;
}

/* Empty state */
.blog-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 0;
    color: var(--muted);
}

/* ── Individual post page ─────────────────────── */
.post-hero {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 120px 0 56px;
}

.post-hero-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.post-hero h1 {
    font-size: 38px;
    font-weight: 800;
    color: var(--text);
    line-height: 1.2;
    margin: 0 0 20px;
    max-width: 820px;
}

.post-hero-byline {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 14px;
    color: var(--muted);
}

.post-hero-byline img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border);
}

/* Post body */
.post-body {
    padding: 64px 0 80px;
}

.post-content {
    max-width: 760px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.85;
    color: #c9d1d9;
}

/* Typography inside post content */
.post-content h2 {
    font-size: 26px;
    font-weight: 700;
    color: var(--text);
    margin: 48px 0 16px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.post-content h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text);
    margin: 36px 0 12px;
}

.post-content h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--accent);
    margin: 28px 0 8px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.post-content p {
    margin: 0 0 20px;
}

.post-content a {
    color: var(--accent);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.post-content a:hover {
    color: #fff;
}

.post-content strong {
    color: var(--text);
    font-weight: 600;
}

.post-content em {
    color: var(--muted);
}

.post-content ul,
.post-content ol {
    margin: 0 0 20px 0;
    padding-left: 24px;
}

.post-content li {
    margin-bottom: 8px;
    color: #c9d1d9;
}

/* Code blocks */
.post-content pre {
    background: #0d1117;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px 22px;
    overflow-x: auto;
    margin: 24px 0;
    font-family: 'Cascadia Code', 'Consolas', 'Courier New', monospace;
    font-size: 13.5px;
    line-height: 1.65;
    color: #4ec9b0;
}

.post-content code {
    font-family: 'Cascadia Code', 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    background: rgba(0, 180, 216, 0.1);
    color: #9cdcfe;
    padding: 2px 7px;
    border-radius: 4px;
    border: 1px solid rgba(0, 180, 216, 0.15);
}

.post-content pre code {
    background: none;
    border: none;
    padding: 0;
    font-size: inherit;
    color: inherit;
}

/* Callout / tip box */
.post-content .callout {
    background: rgba(0, 180, 216, 0.07);
    border-left: 3px solid var(--accent);
    border-radius: 0 8px 8px 0;
    padding: 16px 20px;
    margin: 24px 0;
    color: #c9d1d9;
}

.post-content .callout strong {
    display: block;
    color: var(--accent);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}

/* Horizontal rule */
.post-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 40px 0;
}

/* Post footer nav (prev / next) */
.post-nav {
    max-width: 760px;
    margin: 0 auto;
    padding: 40px 0 0;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
}

.post-nav a {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    transition: color 0.2s ease;
}

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

/* ── Responsive ── */
@media (max-width: 991px) {
    .blog-grid {
        grid-template-columns: 1fr 1fr;
    }

    .post-hero h1 {
        font-size: 30px;
    }
}

@media (max-width: 767px) {
    .blog-hero h1 {
        font-size: 30px;
    }

    .blog-grid {
        grid-template-columns: 1fr;
    }

    .post-hero h1 {
        font-size: 26px;
    }

    .post-content h2 {
        font-size: 22px;
    }

    .post-body {
        padding: 40px 0 60px;
    }
}