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var(--color-rule);background:#0e0f10eb;position:sticky;top:0}.masthead{height:var(--mast-h);letter-spacing:.04em;justify-content:space-between;align-items:center;gap:16px;font-size:12px;display:flex}.mast-title{letter-spacing:.08em;text-transform:uppercase;color:var(--color-ink);align-items:center;gap:10px;font-size:14px;font-weight:600;display:inline-flex}.mast-logo{fill:currentColor;width:20px;height:auto;display:block}.mast-rss{font-family:var(--font-mono);letter-spacing:.14em;color:var(--color-muted);text-transform:uppercase;font-size:11px}.mast-rss:hover{color:var(--color-ink)}.breadcrumb{color:var(--color-muted);text-transform:uppercase;letter-spacing:.1em;align-items:center;gap:8px;padding:18px 0 0;font-size:12px;display:flex}.breadcrumb a:hover{color:var(--accent)}.breadcrumb .sep{opacity:.4}.breadcrumb .here{color:var(--accent)}.section-nav{top:var(--mast-h);z-index:40;-webkit-backdrop-filter:saturate(140%)blur(6px);backdrop-filter:saturate(140%)blur(6px);border-bottom:1px 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