/* Blog post page styles — uses CSS variables from ../styles.css */

/* ── Hero / Header ── */
.blog-hero {
    padding: 7rem 2rem 3.5rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.blog-hero::before {
    content: '';
    position: absolute;
    top: -300px;
    right: -200px;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(234, 88, 12, 0.07) 0%, transparent 65%);
    pointer-events: none;
}

.blog-hero-inner {
    max-width: 680px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 2.5rem;
    transition: color 0.2s;
}

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

.post-meta-bar {
    display: flex;
    align-items: center;
    gap: 0.875rem;
    margin-bottom: 1.25rem;
}

.post-date {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--text-muted);
}

.post-readtime {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--primary-color);
    background: rgba(234, 88, 12, 0.1);
    border: 1px solid rgba(234, 88, 12, 0.2);
    padding: 0.18rem 0.6rem;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.blog-title {
    font-size: clamp(1.75rem, 5vw, 2.75rem);
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1.13;
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
}

.source-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(234, 88, 12, 0.3);
    padding-bottom: 1px;
    transition: color 0.2s, border-color 0.2s;
}

.source-link:hover {
    color: var(--primary-light);
    border-bottom-color: var(--primary-light);
}

/* ── Article body ── */
.blog-article {
    max-width: 680px;
    margin: 0 auto;
    padding: 3.5rem 2rem 8rem;
}

.blog-article p {
    font-size: 1.0625rem;
    line-height: 1.875;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.blog-article h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.4px;
    margin: 3rem 0 1rem;
    padding-left: 0.875rem;
    border-left: 2px solid var(--primary-color);
}

.blog-article h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 2rem 0 0.75rem;
}

.blog-article strong {
    color: var(--text-primary);
    font-weight: 600;
}

.blog-article em {
    font-style: italic;
}

/* Inline links */
.blog-article a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid rgba(234, 88, 12, 0.35);
    transition: color 0.2s, border-color 0.2s;
}

.blog-article a:hover {
    color: var(--primary-light);
    border-bottom-color: var(--primary-light);
}

/* Inline code */
.blog-article :not(pre) > code {
    font-family: 'JetBrains Mono', var(--font-mono);
    font-size: 0.82em;
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 0.15em 0.45em;
    color: var(--primary-light);
}

/* ── Code blocks ── */
.code-block {
    margin: 2rem 0;
    border-radius: var(--radius-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.07);
}

.code-block-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.025);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding: 0.5rem 1.25rem;
}

.code-lang {
    font-family: 'JetBrains Mono', var(--font-mono);
    font-size: 0.65rem;
    color: var(--primary-color);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.12em;
}

.copy-btn {
    font-size: 0.7rem;
    color: var(--text-muted);
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-family: var(--font-body);
    font-weight: 500;
    transition: all 0.15s;
    letter-spacing: 0.03em;
}

.copy-btn:hover {
    color: var(--text-secondary);
    border-color: var(--border-color);
    background: rgba(255, 255, 255, 0.04);
}

.copy-btn.copied {
    color: #4ade80;
    border-color: rgba(74, 222, 128, 0.3);
}

.code-block pre {
    margin: 0;
    padding: 1.25rem 1.5rem;
    overflow-x: auto;
    background: rgba(3, 3, 5, 0.9);
}

/* Override highlight.js background */
.code-block pre code.hljs {
    font-family: 'JetBrains Mono', var(--font-mono);
    font-size: 0.845rem;
    line-height: 1.7;
    background: transparent;
    padding: 0;
}

/* No-highlight code (ASCII diagrams, etc.) */
.code-block pre code.nohighlight {
    font-family: 'JetBrains Mono', var(--font-mono);
    font-size: 0.82rem;
    line-height: 1.65;
    color: var(--text-secondary);
    display: block;
}

/* ── Lists ── */
.blog-article ul,
.blog-article ol {
    margin: 0.25rem 0 1.5rem;
    padding-left: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.blog-article li {
    font-size: 1.0625rem;
    line-height: 1.75;
    color: var(--text-secondary);
}

.blog-article li::marker {
    color: var(--primary-color);
}

.blog-article ul { list-style: disc; }
.blog-article ol { list-style: decimal; }

/* ── Divider ── */
.blog-article hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 3rem 0;
}

/* ── Post footer ── */
.blog-post-end {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.blog-author {
    font-size: 0.9rem;
    color: var(--text-muted);
}

.blog-author a {
    color: var(--primary-color);
    text-decoration: none;
    border: none;
    font-weight: 600;
    transition: color 0.2s;
}

.blog-author a:hover {
    color: var(--primary-light);
}

/* ── Mobile ── */
@media (max-width: 768px) {
    .blog-hero {
        padding: 5.5rem 1.25rem 2.5rem;
    }

    .blog-article {
        padding: 2.5rem 1.25rem 5rem;
    }

    .blog-title {
        letter-spacing: -0.5px;
    }

    .code-block pre {
        padding: 1rem;
    }
}