/* ============================================================
   TG:ON Journal · shared article styles
   ============================================================ */
:root {
    --void: #010204;
    --surface: #070a10;
    --surface-light: #0d131f;
    --text: #e8eef4;
    --text-body: #c4cfd8;
    --text-muted: #8a9aab;
    --text-dim: #5a6c7d;
    --border: rgba(255,255,255,0.08);
    --border-soft: rgba(255,255,255,0.04);
    --neon-blue: #00f2ff;
    --neon-purple: #bd00ff;
    --neon-green: #00ff66;
    --neon-yellow: #ffd600;
    --neon-orange: #ff6b00;
    --neon-red: #ff003c;
}

*, *::before, *::after { box-sizing: border-box; }
html, body {
    margin: 0; padding: 0;
    background: var(--void);
    color: var(--text);
    font-family: 'Inter', -apple-system, Segoe UI, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    font-size: 17px; line-height: 1.7;
    scroll-behavior: smooth;
}
::selection { background: rgba(0,242,255,0.35); color: white; }

/* ---- Scroll progress bar ---- */
.scroll-progress {
    position: fixed; top: 0; left: 0; right: 0; height: 3px;
    background: transparent; z-index: 100;
}
.scroll-progress-bar {
    height: 100%;
    background: linear-gradient(to right, var(--neon-blue), var(--neon-purple));
    box-shadow: 0 0 12px rgba(0,242,255,0.6);
    width: 0%; transition: width 0.1s;
}

/* ---- Nav ---- */
.nav {
    position: sticky; top: 0; z-index: 40;
    background: rgba(1,2,4,0.85); backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-soft);
    padding: 14px 32px;
    display: flex; align-items: center; gap: 28px;
}
.nav-logo {
    font-weight: 900; letter-spacing: -0.02em; font-size: 20px;
    color: white; display: flex; align-items: center;
    text-decoration: none;
}
.nav-logo .colon {
    color: var(--neon-blue);
    text-shadow: 0 0 10px rgba(0,242,255,0.6);
    animation: blink 1.4s ease-in-out infinite;
    margin: 0 1px;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.55; } }
.nav-crumb {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 600;
    color: var(--text-muted); letter-spacing: 0.15em;
    text-transform: uppercase;
}
.nav-crumb a { color: var(--text-muted); text-decoration: none; }
.nav-crumb a:hover { color: white; }
.nav-crumb .sep { color: var(--text-dim); margin: 0 8px; }
.nav-right { margin-left: auto; display: flex; gap: 12px; align-items: center; }
.nav-cta {
    padding: 10px 18px; border-radius: 10px;
    background: white; color: var(--void);
    font-weight: 800; font-size: 13px; letter-spacing: 0.08em;
    text-transform: uppercase; text-decoration: none;
    transition: transform 0.15s;
}
.nav-cta:hover { transform: translateY(-1px); box-shadow: 0 10px 30px rgba(255,255,255,0.15); }

/* ---- Hero ---- */
.hero {
    position: relative; overflow: hidden;
    padding: 60px 32px 40px;
    border-bottom: 1px solid var(--border-soft);
}
.hero-bg-aurora {
    position: absolute; inset: -30%; z-index: 0; pointer-events: none;
    filter: blur(120px);
    animation: spin-a 40s linear infinite;
}
@keyframes spin-a { 100% { transform: rotate(360deg); } }
.hero-grid {
    position: absolute; inset: 0; z-index: 1; pointer-events: none;
    background-image:
        linear-gradient(to right, rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 48px 48px;
    mask-image: radial-gradient(circle at 50% 40%, black 10%, transparent 70%);
    -webkit-mask-image: radial-gradient(circle at 50% 40%, black 10%, transparent 70%);
}
.hero-content {
    position: relative; z-index: 5;
    max-width: 840px; margin: 0 auto;
}
.hero-meta {
    display: flex; gap: 14px; align-items: center; margin-bottom: 22px;
    flex-wrap: wrap;
}
.hero-tag {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 12px; border-radius: 99px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    letter-spacing: 0.25em; text-transform: uppercase;
}
.hero-tag.green { background: rgba(0,255,102,0.08); border: 1px solid rgba(0,255,102,0.35); color: var(--neon-green); }
.hero-tag.blue { background: rgba(0,242,255,0.08); border: 1px solid rgba(0,242,255,0.35); color: var(--neon-blue); }
.hero-tag.purple { background: rgba(189,0,255,0.08); border: 1px solid rgba(189,0,255,0.35); color: var(--neon-purple); }
.hero-tag.yellow { background: rgba(255,214,0,0.08); border: 1px solid rgba(255,214,0,0.35); color: var(--neon-yellow); }
.hero-tag.orange { background: rgba(255,107,0,0.08); border: 1px solid rgba(255,107,0,0.35); color: var(--neon-orange); }
.hero-tag.red { background: rgba(255,0,60,0.08); border: 1px solid rgba(255,0,60,0.35); color: var(--neon-red); }
.hero-meta-item {
    display: flex; align-items: center; gap: 6px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 500;
    color: var(--text-muted); letter-spacing: 0.1em;
}
.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800; font-size: 68px; line-height: 1.02;
    letter-spacing: -0.035em; color: white;
    margin: 0 0 20px;
}
.hero-title .accent-blue { color: var(--neon-blue); text-shadow: 0 0 40px rgba(0,242,255,0.5); }
.hero-title .accent-green { color: var(--neon-green); text-shadow: 0 0 40px rgba(0,255,102,0.5); }
.hero-title .accent-purple { color: var(--neon-purple); text-shadow: 0 0 40px rgba(189,0,255,0.5); }
.hero-title .accent-yellow { color: var(--neon-yellow); text-shadow: 0 0 40px rgba(255,214,0,0.5); }
.hero-title .accent-red { color: var(--neon-red); text-shadow: 0 0 40px rgba(255,0,60,0.5); }
.hero-title .accent-orange { color: var(--neon-orange); text-shadow: 0 0 40px rgba(255,107,0,0.5); }
.hero-subtitle {
    font-size: 21px; line-height: 1.55; color: var(--text-body);
    margin: 0 0 36px; max-width: 680px; font-weight: 500;
}
.hero-author {
    display: flex; align-items: center; gap: 12px;
    padding-top: 24px; border-top: 1px solid var(--border-soft);
}
.hero-author-avatar {
    width: 40px; height: 40px; border-radius: 50%;
    background: linear-gradient(135deg, var(--neon-blue), var(--neon-purple));
    display: flex; align-items: center; justify-content: center;
    font-weight: 900; font-size: 13px; color: var(--void);
}
.hero-author-info { font-size: 13px; }
.hero-author-name { color: white; font-weight: 700; }
.hero-author-role { color: var(--text-muted); font-size: 12px; }

/* ---- Banner embed frame ---- */
.hero-banner-frame {
    max-width: 1040px; margin: 40px auto 0;
    border-radius: 18px; overflow: hidden;
    position: relative;
    box-shadow: 0 40px 100px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.05);
}
.hero-banner-frame iframe {
    width: 1280px; height: 720px;
    transform: scale(0.8125);
    transform-origin: top left;
    border: 0; display: block;
    pointer-events: none;
}
.hero-banner-frame-inner {
    width: 100%; height: 585px;
    overflow: hidden; position: relative;
}
@media (max-width: 1040px) {
    .hero-banner-frame-inner { height: calc(56.25vw - 40px); }
    .hero-banner-frame iframe { transform: scale(calc((100vw - 60px) / 1280)); }
}

/* ---- Article body ---- */
.article-layout {
    display: grid;
    grid-template-columns: 1fr min(760px, 90%) 1fr;
    gap: 32px;
    padding: 48px 0 120px;
}
.article-layout > * { grid-column: 2; }

.article-body {
    font-size: 17px; line-height: 1.75; color: var(--text-body);
}
.article-body p { margin: 0 0 22px; }
.article-body b, .article-body strong { color: white; font-weight: 700; }
.article-body a {
    color: var(--neon-blue); text-decoration: none;
    border-bottom: 1px solid rgba(0,242,255,0.3);
    font-weight: 600;
}
.article-body a:hover { border-bottom-color: var(--neon-blue); }

.section-kicker {
    display: flex; align-items: center; gap: 14px;
    margin: 56px 0 22px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--neon-blue); letter-spacing: 0.35em;
    text-transform: uppercase;
}
.section-kicker::before { content: ''; width: 32px; height: 1px; background: var(--neon-blue); }
.section-kicker.green { color: var(--neon-green); }
.section-kicker.green::before { background: var(--neon-green); }
.section-kicker.purple { color: var(--neon-purple); }
.section-kicker.purple::before { background: var(--neon-purple); }
.section-kicker.yellow { color: var(--neon-yellow); }
.section-kicker.yellow::before { background: var(--neon-yellow); }
.section-kicker.red { color: var(--neon-red); }
.section-kicker.red::before { background: var(--neon-red); }
.section-kicker.orange { color: var(--neon-orange); }
.section-kicker.orange::before { background: var(--neon-orange); }

.article-body h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800; font-size: 38px; line-height: 1.15;
    letter-spacing: -0.02em; color: white;
    margin: 0 0 18px;
}
.article-body h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700; font-size: 24px; line-height: 1.25;
    color: white; margin: 36px 0 12px;
}

/* ---- TL;DR ---- */
.tldr {
    background: rgba(0,242,255,0.04);
    border: 1px solid rgba(0,242,255,0.2);
    border-left: 4px solid var(--neon-blue);
    border-radius: 14px;
    padding: 24px 28px;
    margin: 20px 0 40px;
}
.tldr.green { background: rgba(0,255,102,0.04); border-color: rgba(0,255,102,0.2); border-left-color: var(--neon-green); }
.tldr.purple { background: rgba(189,0,255,0.04); border-color: rgba(189,0,255,0.2); border-left-color: var(--neon-purple); }
.tldr.yellow { background: rgba(255,214,0,0.04); border-color: rgba(255,214,0,0.2); border-left-color: var(--neon-yellow); }
.tldr.red { background: rgba(255,0,60,0.04); border-color: rgba(255,0,60,0.2); border-left-color: var(--neon-red); }
.tldr-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--neon-blue); letter-spacing: 0.3em;
    text-transform: uppercase; margin-bottom: 12px;
}
.tldr.green .tldr-label { color: var(--neon-green); }
.tldr.purple .tldr-label { color: var(--neon-purple); }
.tldr.yellow .tldr-label { color: var(--neon-yellow); }
.tldr.red .tldr-label { color: var(--neon-red); }
.tldr ul { margin: 0; padding-left: 20px; }
.tldr li { margin-bottom: 8px; color: var(--text); font-size: 16px; line-height: 1.6; }
.tldr li:last-child { margin-bottom: 0; }
.tldr b { color: white; }

/* ---- Callouts ---- */
.callout {
    display: flex; gap: 16px;
    padding: 20px 24px; border-radius: 14px;
    margin: 28px 0;
    border: 1px solid var(--border);
    background: var(--surface-light);
}
.callout.warn { border-color: rgba(255,0,60,0.3); background: rgba(255,0,60,0.04); }
.callout.info { border-color: rgba(0,242,255,0.3); background: rgba(0,242,255,0.04); }
.callout.success { border-color: rgba(0,255,102,0.3); background: rgba(0,255,102,0.04); }
.callout.purple { border-color: rgba(189,0,255,0.3); background: rgba(189,0,255,0.04); }
.callout.yellow { border-color: rgba(255,214,0,0.3); background: rgba(255,214,0,0.04); }
.callout-icon {
    flex-shrink: 0; width: 28px; height: 28px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.callout.warn .callout-icon { background: rgba(255,0,60,0.15); color: var(--neon-red); }
.callout.info .callout-icon { background: rgba(0,242,255,0.15); color: var(--neon-blue); }
.callout.success .callout-icon { background: rgba(0,255,102,0.15); color: var(--neon-green); }
.callout.purple .callout-icon { background: rgba(189,0,255,0.15); color: var(--neon-purple); }
.callout.yellow .callout-icon { background: rgba(255,214,0,0.15); color: var(--neon-yellow); }
.callout-body { font-size: 15.5px; line-height: 1.6; color: var(--text-body); }
.callout-body p { margin: 0 0 10px; }
.callout-body p:last-child { margin-bottom: 0; }
.callout-body b { color: white; }

/* ---- Pull quote ---- */
.pull-quote {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 30px; font-weight: 700; line-height: 1.3;
    color: white;
    padding: 32px 0 32px 32px;
    border-left: 4px solid var(--neon-green);
    margin: 40px 0;
    position: relative;
}
.pull-quote.blue { border-left-color: var(--neon-blue); }
.pull-quote.purple { border-left-color: var(--neon-purple); }
.pull-quote.yellow { border-left-color: var(--neon-yellow); }
.pull-quote.red { border-left-color: var(--neon-red); }
.pull-quote.orange { border-left-color: var(--neon-orange); }
.pull-quote-attr {
    display: block; margin-top: 18px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 600;
    color: var(--text-muted); letter-spacing: 0.2em;
    text-transform: uppercase;
}

/* ---- Code block ---- */
.code-block {
    background: #0a0f18;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 18px 22px;
    margin: 24px 0;
    overflow-x: auto;
    font-family: 'JetBrains Mono', Menlo, monospace;
    font-size: 14px; line-height: 1.6;
    color: var(--text);
}
.code-block .c-comment { color: var(--text-dim); }
.code-block .c-keyword { color: var(--neon-purple); }
.code-block .c-string { color: var(--neon-green); }
.code-block .c-fn { color: var(--neon-blue); }
.code-block .c-num { color: var(--neon-yellow); }
.code-block .c-err { color: var(--neon-red); }

.article-body code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    background: rgba(0,242,255,0.08);
    color: var(--neon-blue);
    padding: 1px 6px; border-radius: 4px;
    border: 1px solid rgba(0,242,255,0.15);
}

/* ---- Table ---- */
.data-table {
    width: 100%; border-collapse: collapse;
    margin: 24px 0;
    border-radius: 12px; overflow: hidden;
    background: var(--surface-light);
    border: 1px solid var(--border);
    font-size: 14.5px;
}
.data-table th, .data-table td {
    padding: 14px 18px;
    text-align: left;
    border-bottom: 1px solid var(--border-soft);
}
.data-table th {
    background: rgba(0,242,255,0.06);
    color: var(--neon-blue);
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    letter-spacing: 0.15em; text-transform: uppercase;
}
.data-table td { color: var(--text-body); }
.data-table td b { color: white; }
.data-table tr:last-child td { border-bottom: none; }

/* ---- Stat grid ---- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin: 32px 0;
}
.stat-card {
    padding: 22px 20px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 14px;
    border-top: 2px solid var(--neon-blue);
}
.stat-card.purple { border-top-color: var(--neon-purple); }
.stat-card.green { border-top-color: var(--neon-green); }
.stat-card.red { border-top-color: var(--neon-red); }
.stat-card.yellow { border-top-color: var(--neon-yellow); }
.stat-card.orange { border-top-color: var(--neon-orange); }
.stat-value {
    font-family: 'Rajdhani', sans-serif;
    font-weight: 800; font-size: 44px; line-height: 1;
    color: white; margin-bottom: 6px;
}
.stat-value.green { color: var(--neon-green); }
.stat-value.red { color: var(--neon-red); }
.stat-value.purple { color: var(--neon-purple); }
.stat-value.blue { color: var(--neon-blue); }
.stat-value.yellow { color: var(--neon-yellow); }
.stat-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--text-muted); letter-spacing: 0.15em;
    text-transform: uppercase;
}
.stat-sub { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* ---- CTA card ---- */
.cta-card {
    margin: 56px 0;
    padding: 40px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(0,242,255,0.08) 0%, rgba(189,0,255,0.08) 100%);
    border: 1px solid rgba(0,242,255,0.3);
    position: relative; overflow: hidden;
}
.cta-card::before {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 30% 30%, rgba(0,242,255,0.1) 0%, transparent 50%);
    pointer-events: none;
}
.cta-card.green { background: linear-gradient(135deg, rgba(0,255,102,0.08) 0%, rgba(0,242,255,0.08) 100%); border-color: rgba(0,255,102,0.3); }
.cta-card.green::before { background: radial-gradient(circle at 30% 30%, rgba(0,255,102,0.1) 0%, transparent 50%); }
.cta-card.purple { background: linear-gradient(135deg, rgba(189,0,255,0.1) 0%, rgba(0,242,255,0.08) 100%); border-color: rgba(189,0,255,0.3); }
.cta-card.yellow { background: linear-gradient(135deg, rgba(255,214,0,0.1) 0%, rgba(255,107,0,0.08) 100%); border-color: rgba(255,214,0,0.3); }
.cta-card.red { background: linear-gradient(135deg, rgba(255,0,60,0.1) 0%, rgba(255,107,0,0.08) 100%); border-color: rgba(255,0,60,0.3); }
.cta-card-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--neon-blue); letter-spacing: 0.3em;
    text-transform: uppercase; margin-bottom: 12px;
    position: relative; z-index: 1;
}
.cta-card.green .cta-card-kicker { color: var(--neon-green); }
.cta-card.purple .cta-card-kicker { color: var(--neon-purple); }
.cta-card.yellow .cta-card-kicker { color: var(--neon-yellow); }
.cta-card.red .cta-card-kicker { color: var(--neon-red); }
.cta-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800; font-size: 34px; line-height: 1.15;
    color: white; margin: 0 0 14px;
    letter-spacing: -0.02em;
    position: relative; z-index: 1;
}
.cta-card-sub {
    font-size: 16px; line-height: 1.55; color: var(--text-body);
    margin: 0 0 28px; max-width: 520px;
    position: relative; z-index: 1;
}
.cta-btn {
    display: inline-flex; align-items: center; gap: 12px;
    padding: 18px 32px; border-radius: 14px;
    background: white; color: var(--void);
    font-weight: 900; font-size: 14px; letter-spacing: 0.15em;
    text-transform: uppercase; text-decoration: none;
    transition: transform 0.15s;
    position: relative; z-index: 1;
}
.cta-btn:hover { transform: translateY(-2px); box-shadow: 0 20px 40px rgba(255,255,255,0.15); }

/* ---- Related ---- */
.related {
    margin: 80px 0 0;
    padding-top: 48px;
    border-top: 1px solid var(--border);
}
.related-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--text-muted); letter-spacing: 0.3em;
    text-transform: uppercase; margin-bottom: 20px;
}
.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
}
.related-card {
    padding: 24px;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 14px;
    text-decoration: none;
    transition: transform 0.2s, border-color 0.2s;
    display: block;
}
.related-card:hover {
    transform: translateY(-3px);
    border-color: rgba(0,242,255,0.4);
}
.related-card-cat {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; font-weight: 700;
    color: var(--neon-blue); letter-spacing: 0.25em;
    text-transform: uppercase; margin-bottom: 10px;
}
.related-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700; font-size: 17px; line-height: 1.3;
    color: white; margin: 0 0 10px;
}
.related-card-time { font-size: 12px; color: var(--text-muted); }

/* ---- Footer ---- */
.footer {
    padding: 60px 32px 40px;
    background: var(--surface);
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
}
.footer-logo {
    font-weight: 900; font-size: 18px; color: white;
    margin-bottom: 8px;
    display: inline-flex; align-items: center;
}
.footer-logo .colon { color: var(--neon-blue); margin: 0 1px; }

/* ---- Hub grid (for index.html) ---- */
.hub-hero {
    position: relative; overflow: hidden;
    padding: 80px 32px 60px;
    text-align: center;
    border-bottom: 1px solid var(--border-soft);
}
.hub-hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 800; font-size: 72px; line-height: 1;
    letter-spacing: -0.035em; color: white;
    margin: 0 0 18px;
    position: relative; z-index: 5;
}
.hub-hero-sub {
    font-size: 20px; color: var(--text-body);
    max-width: 640px; margin: 0 auto 10px;
    position: relative; z-index: 5;
}
.hub-hero-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 700;
    color: var(--neon-blue); letter-spacing: 0.4em;
    text-transform: uppercase; margin-bottom: 20px;
    position: relative; z-index: 5;
}

.hub-filters {
    max-width: 1280px; margin: 36px auto 0;
    padding: 0 32px;
    display: flex; gap: 10px; flex-wrap: wrap;
    justify-content: center;
    position: relative; z-index: 5;
}
.hub-filter {
    padding: 8px 16px; border-radius: 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 700;
    color: var(--text-muted); letter-spacing: 0.15em;
    text-transform: uppercase;
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: all 0.2s;
}
.hub-filter:hover, .hub-filter.active {
    color: white; border-color: var(--neon-blue);
    background: rgba(0,242,255,0.08);
}

.hub-grid {
    max-width: 1280px; margin: 60px auto 120px;
    padding: 0 32px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 22px;
}
.hub-card {
    position: relative;
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    text-decoration: none;
    transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.3s, box-shadow 0.3s;
    display: flex; flex-direction: column;
}
.hub-card:hover {
    transform: translateY(-6px);
    border-color: rgba(0,242,255,0.4);
    box-shadow: 0 30px 60px rgba(0,0,0,0.35), 0 0 30px rgba(0,242,255,0.1);
}
.hub-card-banner {
    width: 100%; height: 200px;
    position: relative; overflow: hidden;
    background: var(--void);
    border-bottom: 1px solid var(--border-soft);
}
.hub-card-banner iframe {
    width: 1280px; height: 720px;
    transform: scale(0.281);
    transform-origin: top left;
    border: 0; display: block;
    pointer-events: none;
}
.hub-card-banner::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(13,19,31,0.5));
    pointer-events: none;
}
.hub-card-body {
    padding: 22px 24px 24px;
    flex: 1; display: flex; flex-direction: column;
}
.hub-card-meta {
    display: flex; gap: 10px; align-items: center; margin-bottom: 12px;
}
.hub-card-cat {
    font-family: 'JetBrains Mono', monospace;
    font-size: 10px; font-weight: 700;
    letter-spacing: 0.25em; text-transform: uppercase;
    padding: 4px 9px; border-radius: 6px;
}
.hub-card-cat.tech { color: var(--neon-blue); background: rgba(0,242,255,0.1); border: 1px solid rgba(0,242,255,0.25); }
.hub-card-cat.case { color: var(--neon-green); background: rgba(0,255,102,0.1); border: 1px solid rgba(0,255,102,0.25); }
.hub-card-cat.method { color: var(--neon-purple); background: rgba(189,0,255,0.1); border: 1px solid rgba(189,0,255,0.25); }
.hub-card-cat.offer { color: var(--neon-yellow); background: rgba(255,214,0,0.1); border: 1px solid rgba(255,214,0,0.25); }
.hub-card-cat.opinion { color: var(--neon-orange); background: rgba(255,107,0,0.1); border: 1px solid rgba(255,107,0,0.25); }
.hub-card-cat.warning { color: var(--neon-red); background: rgba(255,0,60,0.1); border: 1px solid rgba(255,0,60,0.25); }
.hub-card-cat.en { color: white; background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.15); }
.hub-card-readtime {
    font-size: 12px; color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}
.hub-card-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700; font-size: 20px; line-height: 1.25;
    color: white; margin: 0 0 10px;
    letter-spacing: -0.015em;
}
.hub-card-excerpt {
    font-size: 14px; line-height: 1.55; color: var(--text-muted);
    margin: 0 0 14px; flex: 1;
}
.hub-card-arrow {
    display: flex; align-items: center; gap: 8px;
    color: var(--neon-blue);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px; font-weight: 700;
    letter-spacing: 0.2em; text-transform: uppercase;
    transition: gap 0.25s;
}
.hub-card:hover .hub-card-arrow { gap: 14px; }

.hub-divider {
    max-width: 1280px; margin: 60px auto 0;
    padding: 16px 32px;
    display: flex; align-items: center; gap: 20px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.hub-divider-label {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    letter-spacing: 0.4em; text-transform: uppercase;
}
.hub-divider-line {
    flex: 1; height: 1px;
    background: linear-gradient(to right, transparent, rgba(255,255,255,0.1), transparent);
}

/* ============================================================
   Download-promo block (product CTA in each article)
   ============================================================ */
.download-promo {
    display: flex; gap: 24px; align-items: center;
    margin: 48px 0 32px;
    padding: 28px 32px;
    background: linear-gradient(135deg, rgba(0,255,102,0.06) 0%, rgba(0,242,255,0.05) 100%);
    border: 1px solid rgba(0,255,102,0.25);
    border-radius: 18px;
    position: relative; overflow: hidden;
}
.download-promo::before {
    content: ''; position: absolute; inset: 0; pointer-events: none;
    background: radial-gradient(circle at 20% 50%, rgba(0,255,102,0.08) 0%, transparent 55%);
}
.download-promo-icon {
    flex-shrink: 0;
    width: 56px; height: 56px; border-radius: 14px;
    background: rgba(0,255,102,0.12);
    border: 1px solid rgba(0,255,102,0.35);
    display: flex; align-items: center; justify-content: center;
    color: var(--neon-green);
    position: relative; z-index: 1;
    box-shadow: 0 0 24px rgba(0,255,102,0.15);
}
.download-promo-body { flex: 1; position: relative; z-index: 1; }
.download-promo-kicker {
    font-family: 'JetBrains Mono', monospace;
    font-size: 11px; font-weight: 700;
    color: var(--neon-green); letter-spacing: 0.3em;
    text-transform: uppercase; margin-bottom: 8px;
}
.download-promo-title {
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 700; font-size: 22px; line-height: 1.25;
    color: white; margin: 0 0 8px; letter-spacing: -0.015em;
}
.download-promo-desc {
    font-size: 14.5px; line-height: 1.5; color: var(--text-body);
    margin: 0 0 14px;
}
.download-promo-btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 22px; border-radius: 12px;
    background: var(--neon-green); color: var(--void);
    font-weight: 900; font-size: 13px; letter-spacing: 0.12em;
    text-transform: uppercase; text-decoration: none;
    transition: transform 0.15s, box-shadow 0.2s;
}
.download-promo-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 12px 28px rgba(0,255,102,0.25);
    border: none !important;
}
@media (max-width: 640px) {
    .download-promo { flex-direction: column; align-items: flex-start; padding: 22px 20px; gap: 16px; }
    .download-promo-title { font-size: 19px; }
}

/* ============================================================
   Language toggle button
   ============================================================ */
.lang-toggle {
    display: inline-flex; align-items: center; gap: 6px;
    padding: 8px 14px; border-radius: 10px;
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.1);
    color: #fff; font-weight: 700; font-size: 12px;
    font-family: 'Inter', sans-serif;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: all 0.2s;
}
.lang-toggle:hover {
    background: rgba(0,242,255,0.1);
    border-color: rgba(0,242,255,0.4);
    color: var(--neon-blue);
}

/* ---- Mobile ---- */
@media (max-width: 780px) {
    .hero { padding: 40px 20px 30px; }
    .hero-title { font-size: 44px; }
    .hero-subtitle { font-size: 18px; }
    .article-body h2 { font-size: 28px; }
    .article-body h3 { font-size: 20px; }
    .pull-quote { font-size: 22px; padding-left: 20px; }
    .cta-card { padding: 28px 22px; }
    .cta-card-title { font-size: 24px; }
    .nav { padding: 12px 18px; gap: 16px; }
    .nav-crumb { display: none; }
    .hub-hero-title { font-size: 44px; }
    .hub-grid { grid-template-columns: 1fr; gap: 18px; padding: 0 20px; }
}