/* Blog styles. Loaded after site_main.css so the header/footer/graph-paper
   background come from there and only the article surface is defined here. */

:root {
    --blog-accent: #FF7A44;
    --blog-ink: #24272b;
    --blog-muted: #6b7280;
    --blog-rule: #e7e9ee;
}

.blog-wrap {
    max-width: 760px;
    margin: 0 auto;
    padding: 48px 24px 24px;
}

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

.blog-index-head {
    text-align: center;
    margin-bottom: 48px;
}

.blog-index-head h1 {
    font-size: clamp(2.2rem, 6vw, 3.2rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #FF7A44, #E91E63, #9C27B0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 16px;
}

.blog-index-sub {
    font-size: 1.15rem;
    line-height: 1.6;
    color: var(--blog-muted);
    max-width: 620px;
    margin: 0 auto;
}

.blog-card-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.blog-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--blog-rule);
    border-radius: 16px;
    padding: 28px;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.blog-card:hover {
    transform: translateY(-2px);
    border-color: var(--blog-accent);
    box-shadow: 0 12px 30px rgba(255, 122, 68, 0.12);
}

.blog-card-meta {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 0.85rem;
    color: var(--blog-muted);
    margin-bottom: 10px;
}

.blog-card-title {
    font-size: 1.5rem;
    line-height: 1.3;
    font-weight: 700;
    margin-bottom: 10px;
}

.blog-card-title a {
    color: var(--blog-ink);
    text-decoration: none;
}

.blog-card-title a:hover { color: var(--blog-accent); }

.blog-card-desc {
    color: #4b5563;
    line-height: 1.65;
    margin-bottom: 14px;
}

.blog-card-more {
    color: var(--blog-accent);
    font-weight: 600;
    text-decoration: none;
}

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

.blog-empty {
    text-align: center;
    color: var(--blog-muted);
}

/* ---------- article ---------- */

.blog-breadcrumb {
    font-size: 0.85rem;
    color: var(--blog-muted);
    margin-bottom: 24px;
}

.blog-breadcrumb a {
    color: var(--blog-muted);
    text-decoration: none;
}

.blog-breadcrumb a:hover { color: var(--blog-accent); }

.blog-article-head h1 {
    font-size: clamp(2rem, 5.5vw, 2.9rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--blog-ink);
    margin-bottom: 18px;
}

.blog-byline {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
    font-size: 0.9rem;
    color: var(--blog-muted);
    padding-bottom: 22px;
    border-bottom: 1px solid var(--blog-rule);
}

.blog-author { font-weight: 600; color: #374151; }

.blog-summary {
    margin-top: 22px;
    font-size: 1.05rem;
    line-height: 1.7;
    color: #4b5563;
    background: rgba(255, 122, 68, 0.06);
    border-left: 3px solid var(--blog-accent);
    border-radius: 0 10px 10px 0;
    padding: 16px 20px;
}

.blog-toc {
    margin: 32px 0;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--blog-rule);
    border-radius: 14px;
    padding: 20px 24px;
}

.blog-toc-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--blog-muted);
    margin-bottom: 12px;
    font-weight: 700;
}

.blog-toc ol {
    margin: 0;
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.blog-toc a {
    color: #374151;
    text-decoration: none;
    line-height: 1.45;
}

.blog-toc a:hover { color: var(--blog-accent); text-decoration: underline; }

/* Rendered markdown body */

.blog-content {
    font-size: 1.12rem;
    line-height: 1.75;
    color: #2f333a;
    margin-top: 36px;
}

.blog-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.25;
    letter-spacing: -0.01em;
    color: var(--blog-ink);
    margin: 52px 0 18px;
    scroll-margin-top: 90px;
}

.blog-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--blog-ink);
    margin: 34px 0 12px;
    scroll-margin-top: 90px;
}

.blog-content p { margin-bottom: 20px; }

.blog-content strong { color: var(--blog-ink); font-weight: 700; }

.blog-content a {
    color: #c2531f;
    text-decoration: underline;
    text-underline-offset: 2px;
    text-decoration-thickness: 1px;
}

.blog-content a:hover { color: var(--blog-accent); }

.blog-content ul,
.blog-content ol {
    margin: 0 0 20px 24px;
}

.blog-content li { margin-bottom: 8px; }

.blog-content blockquote {
    margin: 28px 0;
    padding: 4px 0 4px 22px;
    border-left: 3px solid var(--blog-accent);
    color: #4b5563;
    font-style: italic;
}

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

.blog-content img {
    max-width: 100%;
    height: auto;
    border-radius: 12px;
    margin: 28px 0;
}

.blog-updated {
    margin-top: 40px;
    font-size: 0.85rem;
    color: var(--blog-muted);
}

/* ---------- author box ---------- */

.blog-authorbox {
    margin-top: 48px;
    padding: 22px 24px;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--blog-rule);
    border-radius: 14px;
}

.blog-authorbox-name {
    font-weight: 700;
    color: var(--blog-ink);
    margin-bottom: 6px;
}

.blog-authorbox-bio {
    font-size: 0.95rem;
    line-height: 1.65;
    color: #4b5563;
    margin: 0;
}

.blog-authorbox-bio a {
    color: #c2531f;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.blog-authorbox-bio a:hover { color: var(--blog-accent); }

/* ---------- CTA + related ---------- */

.blog-cta {
    margin: 64px 0 0;
    text-align: center;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid var(--blog-rule);
    border-radius: 18px;
    padding: 40px 28px;
}

.blog-cta h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--blog-ink);
    margin-bottom: 10px;
}

.blog-cta p {
    color: var(--blog-muted);
    line-height: 1.65;
    max-width: 460px;
    margin: 0 auto 24px;
}

.blog-cta-btn {
    display: inline-block;
    background: linear-gradient(135deg, #FF7A44, #e66a3a);
    color: #fff;
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
    padding: 15px 30px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(255, 122, 68, 0.28);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.blog-cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 26px rgba(255, 122, 68, 0.36);
}

.blog-more {
    margin-top: 64px;
}

.blog-more > h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--blog-ink);
    margin-bottom: 20px;
}

@media (max-width: 768px) {
    .blog-wrap { padding: 28px 18px 16px; }
    .blog-card { padding: 22px; }
    .blog-content { font-size: 1.06rem; }
    .blog-content h2 { margin-top: 40px; }
}