:root {
  --bg: #060610;
  --bg-soft: #0d0d1a;
  --border: rgba(255,255,255,.08);
  --text: #f0f0ff;
  --muted: #9696ad;
  --accent: #00d9ff;
  --green: #00ff88;
  --orange: #ff9b52;
  --gradient: linear-gradient(135deg, var(--accent), var(--green));
  --font: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--text); font-family: var(--font); line-height: 1.7; }
a { color: inherit; text-decoration: none; }
.site-nav { position: sticky; top: 0; z-index: 2; background: rgba(6,6,16,.94); backdrop-filter: blur(18px); border-bottom: 1px solid var(--border); }
.nav-inner { max-width: 1060px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 900; font-size: 1.15rem; background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.brand-mark { width: 29px; height: 29px; border: 2px solid var(--green); border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; -webkit-text-fill-color: var(--green); }
.nav-links { display: flex; align-items: center; gap: 22px; font-size: .85rem; color: var(--muted); }
.nav-links a:hover { color: var(--text); }
.nav-cta, .cta-btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 10px 18px; border-radius: 999px; background: var(--gradient); color: #060610; font-weight: 800; }
.breadcrumb { max-width: 780px; margin: 0 auto; padding: 42px 24px 0; color: var(--muted); font-size: .8rem; }
.breadcrumb a:hover { color: var(--accent); }
.article-hero, .article-body, .related { max-width: 780px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.article-hero { padding-top: 32px; padding-bottom: 28px; }
.tag { display: inline-block; padding: 4px 11px; border-radius: 999px; background: rgba(0,255,136,.12); color: var(--green); font-size: .7rem; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; }
.article-hero h1 { margin: 14px 0 12px; font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.12; letter-spacing: -.025em; }
.meta { color: var(--muted); font-size: .82rem; }
.article-body { padding-bottom: 64px; }
.article-body .lede { color: var(--text); font-size: 1.16rem; line-height: 1.75; }
.article-body p { color: var(--muted); font-size: 1.02rem; margin: 0 0 22px; }
.article-body h2 { margin: 42px 0 12px; font-size: 1.55rem; line-height: 1.25; }
.article-body h3 { margin: 28px 0 8px; font-size: 1.15rem; }
.article-body strong { color: var(--text); }
.article-body ul, .article-body ol { margin: 12px 0 24px; padding-left: 24px; color: var(--muted); }
.article-body li { margin: 9px 0; }
.callout { margin: 26px 0; padding: 20px 22px; border: 1px solid rgba(0,255,136,.22); border-radius: 16px; background: rgba(0,255,136,.06); }
.callout p { margin: 0; color: var(--text); }
.source-note { margin-top: 36px; padding-top: 18px; border-top: 1px solid var(--border); color: var(--muted); font-size: .86rem; }
.source-note a { color: var(--accent); }
.cta { margin: 40px 0 0; padding: 28px; border: 1px solid var(--border); border-radius: 22px; background: var(--bg-soft); text-align: center; }
.cta h2 { margin-top: 0; font-size: 1.35rem; }
.cta p { font-size: .95rem; }
.related { padding-bottom: 68px; }
.related h2 { font-size: 1rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.related-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.related-card { padding: 18px; border: 1px solid var(--border); border-radius: 15px; background: var(--bg-soft); }
.related-card:hover { border-color: rgba(0,217,255,.35); }
.related-card h3 { margin: 0 0 6px; font-size: .98rem; line-height: 1.35; }
.related-card p { margin: 0; color: var(--muted); font-size: .84rem; line-height: 1.55; }
footer { padding: 34px 24px; border-top: 1px solid var(--border); background: var(--bg-soft); text-align: center; }
.footer-links { display: flex; justify-content: center; flex-wrap: wrap; gap: 18px; margin: 14px 0; color: var(--muted); font-size: .82rem; }
.footer-copy { margin: 0; color: var(--muted); font-size: .75rem; }
@media (max-width: 640px) {
  .nav-links a:first-child { display: none; }
  .nav-cta { padding: 9px 13px; font-size: .78rem; }
  .related-grid { grid-template-columns: 1fr; }
}