/* Blog Layout */

.blog-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: clamp(4rem, 8vw, 6rem) 5%;
    display: grid;
    grid-template-columns: 1fr 260px;
    gap: clamp(3rem, 6vw, 6rem);
    align-items: start;
}

/* ── Main Content ── */
.blog-content {
    min-width: 0;
}

.blog-section {
    margin-bottom: clamp(4rem, 8vw, 6rem);
    padding-bottom: clamp(4rem, 8vw, 6rem);
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    scroll-margin-top: 120px;
}

.blog-section:last-child {
    border-bottom: none;
}

.blog-section-number {
    font-size: 0.75rem;
    letter-spacing: 0.3em;
    color: var(--accent);
    margin-bottom: 0.75rem;
    font-family: 'Bebas Neue', sans-serif;
}

.blog-section h2 {
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    font-weight: 300;
    letter-spacing: 0.05em;
    margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
    line-height: 1.2;
}

.blog-section h3 {
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 400;
    letter-spacing: 0.05em;
    margin: 2.5rem 0 1rem;
}

.blog-section p {
    font-size: clamp(1rem, 2vw, 1.1rem);
    line-height: 1.9;
    color: #444;
    margin-bottom: 1.5rem;
    max-width: 68ch;
}

.blog-section p:last-child {
    margin-bottom: 0;
}

/* Placeholder prompt — shown while user hasn't written content yet */
.write-here {
    border-left: 3px solid var(--accent);
    padding: 1.5rem 2rem;
    background: rgba(232, 160, 32, 0.05);
    border-radius: 0 8px 8px 0;
    color: #999;
    font-size: 0.95rem;
    letter-spacing: 0.03em;
    line-height: 1.7;
    font-style: italic;
}

/* ── Sticky TOC Sidebar ── */
.blog-toc {
    position: sticky;
    top: 100px;
}

.blog-toc h4 {
    font-size: 0.7rem;
    letter-spacing: 0.3em;
    color: #999;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
}

.blog-toc ol {
    list-style: none;
    padding: 0;
}

.blog-toc li {
    margin-bottom: 0.25rem;
}

.blog-toc a {
    display: block;
    font-size: 0.85rem;
    line-height: 1.5;
    letter-spacing: 0.02em;
    color: #999;
    text-decoration: none;
    padding: 0.4rem 0.75rem;
    border-left: 2px solid transparent;
    transition: color 0.2s ease, border-color 0.2s ease;
}

.blog-toc a:hover {
    color: #000;
}

.blog-toc a.active {
    color: #000;
    border-left-color: var(--accent);
}

/* Sub-entries (1.x) */
.blog-toc .toc-sub a {
    padding-left: 1.5rem;
    font-size: 0.8rem;
}

/* ── Dark mode ── */
[data-theme="dark"] .blog-section {
    border-bottom-color: rgba(255, 255, 255, 0.07);
}

[data-theme="dark"] .blog-section p {
    color: #aaa;
}

[data-theme="dark"] .write-here {
    background: rgba(232, 160, 32, 0.07);
    color: #666;
}

[data-theme="dark"] .blog-toc a:hover,
[data-theme="dark"] .blog-toc a.active {
    color: #e8e8e8;
}

/* ── Responsive — collapse TOC on mobile ── */
@media (max-width: 768px) {
    .blog-container {
        grid-template-columns: 1fr;
    }

    .blog-toc {
        position: static;
        border-top: 1px solid rgba(0, 0, 0, 0.08);
        padding-top: 2rem;
        order: -1; /* TOC above content on mobile */
    }
}