/* ─────────────────────────────────────────────
   blog.css — Premium Article Cluster Styling
   Extends main.css design system
 ───────────────────────────────────────────── */

/* ── Layout ── */
.blog-layout {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    padding: 3rem 0 6rem;
}

@media (min-width: 1024px) {
    .blog-layout {
        grid-template-columns: 260px 1fr;
        align-items: start;
    }
}

/* ── Hero Block ── */
.blog-hero {
    padding: 4rem 0 2rem;
    position: relative;
    border-bottom: 1px solid var(--stroke);
    margin-bottom: 2rem;
}

.blog-hero-inner {
    max-width: 860px;
}

.blog-category {
    display: inline-flex;
    padding: 0.3rem 0.85rem;
    border-radius: 2rem;
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--purple);
    border: 1px solid rgba(192, 132, 252, 0.25);
    background: rgba(192, 132, 252, 0.08);
    margin-bottom: 1.5rem;
}

.blog-title {
    font-size: clamp(2.2rem, 5vw, 3.5rem);
    line-height: 1.15;
    letter-spacing: -0.04em;
    font-weight: 800;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.blog-meta {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 550;
    flex-wrap: wrap;
}

.blog-meta-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.blog-meta-item svg {
    width: 1.1rem;
    height: 1.1rem;
    color: var(--muted-soft);
    flex-shrink: 0;
}

/* ── Sticky Sidebar / TOC ── */
.blog-sidebar {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
    display: none;
}

@media (min-width: 1024px) {
    .blog-sidebar {
        display: block;
    }
}

.toc-card {
    background: rgba(var(--text-rgb), 0.02);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
}

.toc-title {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--stroke);
}

.toc-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.toc-link {
    font-size: 0.9rem;
    color: var(--muted);
    font-weight: 550;
    transition: color var(--transition), padding-left var(--transition);
    display: block;
    line-height: 1.4;
}

.toc-link:hover {
    color: var(--text);
    padding-left: 4px;
}

.toc-link.active {
    color: var(--purple);
    font-weight: 600;
}

/* ── Article Body (Prose customization) ── */
.blog-content {
    max-width: 780px;
    font-size: 1.12rem;
    line-height: 1.75;
    color: var(--muted);
}

.blog-content h2 {
    font-size: 1.85rem;
    font-weight: 800;
    color: var(--text);
    margin-top: 3.5rem;
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    line-height: 1.25;
    scroll-margin-top: calc(var(--header-height) + 2rem);
}

.blog-content h3 {
    font-size: 1.4rem;
    font-weight: 750;
    color: var(--text);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
    scroll-margin-top: calc(var(--header-height) + 2rem);
}

.blog-content p {
    margin-bottom: 1.6rem;
}

.blog-content ul,
.blog-content ol {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
}

.blog-content li {
    margin-bottom: 0.65rem;
}

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

/* ── Styled Keyboards & Tags ── */
kbd {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 0.35rem;
    padding: 0.15rem 0.4rem;
    font-size: 0.82em;
    font-family: ui-monospace, SFMono-Regular, SF Pro Text, Menlo, Monaco, Consolas, monospace;
    box-shadow: 0 2px 0 rgba(0, 0, 0, 0.4);
    color: var(--text-warm);
    display: inline-block;
    line-height: 1.2;
    margin: 0 0.15rem;
    vertical-align: middle;
}

/* ── Custom Quote / Highlight Callouts ── */
.blog-callout {
    margin: 2.5rem 0;
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--purple);
    background: rgba(192, 132, 252, 0.05);
    position: relative;
    overflow: hidden;
}

.blog-callout-orange {
    border-left-color: var(--orange);
    background: rgba(255, 124, 30, 0.05);
}

.blog-callout-teal {
    border-left-color: var(--teal);
    background: rgba(0, 240, 255, 0.05);
}

.blog-callout-title {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.5rem;
    letter-spacing: -0.01em;
}

.blog-callout p {
    margin-bottom: 0;
    font-size: 1rem;
    line-height: 1.6;
}

/* ── Cluster Cross-Linking Card ── */
.blog-cluster-card {
    background: linear-gradient(135deg, rgba(var(--text-rgb), 0.02), rgba(var(--text-rgb), 0.05));
    border: 1px solid var(--stroke);
    border-radius: var(--radius-xl);
    padding: 1.75rem;
    margin: 3rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: border-color var(--transition), transform var(--transition);
}

@media (min-width: 640px) {
    .blog-cluster-card {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        gap: 2rem;
    }
}

.blog-cluster-card:hover {
    border-color: rgba(var(--text-rgb), 0.2);
    transform: translateY(-2px);
}

.blog-cluster-info h4 {
    font-size: 1.15rem;
    font-weight: 750;
    color: var(--text);
    margin-bottom: 0.25rem;
    letter-spacing: -0.02em;
}

.blog-cluster-info p {
    font-size: 0.95rem;
    color: var(--muted);
    margin-bottom: 0;
}

.blog-cluster-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.25rem;
    border-radius: 0.75rem;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--bg);
    background: #ffffff;
    transition: transform var(--transition);
    white-space: nowrap;
}

.blog-cluster-card:hover .blog-cluster-btn {
    transform: scale(1.03);
}

/* ── Custom Styled Table for Comparisons ── */
.blog-table-container {
    margin: 2.5rem 0;
    overflow-x: auto;
    border-radius: var(--radius-xl);
    border: 1px solid var(--stroke);
}

.blog-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    text-align: left;
}

.blog-table th,
.blog-table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--stroke);
}

.blog-table th {
    background: rgba(255, 255, 255, 0.02);
    font-weight: 700;
    color: var(--text);
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
}

.blog-table tr:last-child td {
    border-bottom: none;
}

.blog-table tr:hover td {
    background: rgba(255, 255, 255, 0.015);
}

.blog-table td strong {
    font-weight: 600;
}

.blog-table td svg {
    width: 1.1rem;
    height: 1.1rem;
    vertical-align: middle;
    margin-right: 0.25rem;
}

.blog-table-yes {
    color: var(--teal);
}

.blog-table-partial {
    color: var(--orange);
}

.blog-table-no {
    color: var(--muted-soft);
}

/* ── Inline Demo Stage Adaptation ── */
.blog-inline-demo {
    margin: 3rem 0;
}

.blog-inline-demo .visual-stage {
    max-width: 780px;
    margin: 0 auto;
}

.blog-inline-demo .media-frame {
    border-radius: var(--radius-xl);
    border: 1px solid var(--stroke);
    background: var(--bg-soft);
    overflow: hidden;
}

.blog-inline-demo .demo-browser {
    transform: none !important;
    margin-left: 0 !important;
    height: auto !important;
}

.blog-inline-demo .demo-window-content {
    height: 220px !important;
}

/* ── FAQ styling in Blog ── */
.blog-faq-list {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.blog-faq-card {
    background: rgba(255, 255, 255, 0.01);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-xl);
    padding: 1.5rem;
}

.blog-faq-card h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 0.50rem;
    letter-spacing: -0.01em;
}

.blog-faq-card p {
    font-size: 0.95rem;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 0;
}

/* ── Blog Archive page styling ── */
.blog-archive-section {
    padding: 3rem 0 7rem;
}
.blog-archive-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 4rem;
}
.blog-archive-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--text);
    margin-bottom: 1rem;
    line-height: 1.1;
}
.blog-archive-lead {
    font-size: 1.2rem;
    color: var(--muted);
    line-height: 1.6;
}

.blog-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.blog-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--stroke);
    border-radius: var(--radius-xl);
    padding: 2.25rem;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition), border-color var(--transition), background var(--transition);
}
.blog-card:hover {
    transform: translateY(-2px);
    border-color: rgba(var(--text-rgb), 0.16);
    background: rgba(255, 255, 255, 0.04);
}

.blog-card-meta {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted-soft);
    margin-bottom: 0.75rem;
}
.blog-card-category {
    color: var(--purple);
}

.blog-card-title {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.25;
    letter-spacing: -0.02em;
    margin-bottom: 0.75rem;
}

.blog-card-excerpt {
    font-size: 1rem;
    color: var(--muted);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
    transition: color var(--transition);
}
.blog-card:hover .blog-card-link {
    color: var(--purple);
}
.blog-card-link svg {
    width: 1.1rem;
    height: 1.1rem;
    transition: transform var(--transition);
}
.blog-card:hover .blog-card-link svg {
    transform: translateX(3px);
}