/* ============================================
   Expertise By Me — Blog styles
   Typography, article grid, popover notes
   ============================================ */

/* ---- BLOG GRID ---- */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 20px;
}

.blog-card {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
}

.blog-card-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-bottom: 8px;
}

.blog-card-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}

.blog-card-desc {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 12px;
    flex: 1;
}

.blog-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.blog-card-tags span {
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.blog-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 32px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    text-decoration: none;
    transition: var(--transition);
}

.blog-more:hover {
    opacity: 0.7;
}

.blog-empty {
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 40px 0;
}

/* ---- ARTICLE PROSE ---- */
.article-header {
    margin-bottom: 48px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 16px;
}

.article-date {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.article-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.article-tags span {
    font-size: 0.75rem;
    padding: 3px 10px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.04);
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.article-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.article-desc {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-top: 12px;
    line-height: 1.6;
}

.article-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    margin-bottom: 32px;
    transition: var(--transition);
}

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

/* ---- PROSE CONTENT ---- */
.prose {
    max-width: 720px;
    font-size: 1.05rem;
    line-height: 1.8;
    color: var(--text-secondary);
}

.prose h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 48px;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.prose h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 36px;
    margin-bottom: 12px;
}

.prose h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 28px;
    margin-bottom: 8px;
}

.prose p {
    margin-bottom: 20px;
}

.prose ul,
.prose ol {
    margin-bottom: 20px;
    padding-left: 24px;
}

.prose li {
    margin-bottom: 8px;
}

.prose blockquote {
    border-left: 3px solid var(--text-primary);
    padding-left: 20px;
    margin: 24px 0;
    color: var(--text-muted);
    font-style: italic;
}

.prose code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: rgba(0, 0, 0, 0.05);
    padding: 2px 6px;
    border-radius: 4px;
}

.prose pre {
    background: var(--bg-dark);
    color: var(--text-on-dark);
    padding: 20px 24px;
    border-radius: var(--radius);
    overflow-x: auto;
    margin: 24px 0;
    font-size: 0.88rem;
    line-height: 1.6;
}

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

.prose img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius);
    margin: 24px 0;
}

.prose a {
    color: var(--text-primary);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: var(--transition);
}

.prose a:hover {
    opacity: 0.7;
}

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

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

.prose table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 0.9rem;
}

.prose th,
.prose td {
    text-align: left;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

.prose th {
    font-weight: 600;
    color: var(--text-primary);
}

/* ---- POPOVER / NOTES ---- */
.term {
    text-decoration: underline;
    text-decoration-style: dotted;
    text-underline-offset: 3px;
    text-decoration-color: var(--text-muted);
    cursor: help;
    transition: var(--transition);
}

.term:hover {
    text-decoration-color: var(--text-primary);
}

.popover-note {
    position: fixed;
    max-width: 320px;
    padding: 10px 14px;
    background: var(--bg-dark);
    color: var(--text-on-dark);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    line-height: 1.5;
    z-index: 10000;
    pointer-events: none;
    opacity: 0;
    transform: translateY(4px);
    transition: opacity 0.15s ease, transform 0.15s ease;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.popover-note.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ---- RESPONSIVE ---- */
@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }

    .prose {
        font-size: 1rem;
    }

    .prose pre {
        padding: 16px;
        font-size: 0.82rem;
    }

    .popover-note {
        max-width: 260px;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .article-title {
        font-size: 1.5rem;
    }
}

@media print {
    .popover-note { display: none !important; }
    .term { text-decoration: none; }
}