:root{--color-ink:#11131A;--color-ink-60:rgba(17,19,26,0.60);--color-ink-40:rgba(17,19,26,0.40);--color-ink-15:rgba(17,19,26,0.15);--color-ink-08:rgba(17,19,26,0.08);--color-paper:#F7F8FA;--color-paper-tinted:#F2F3F6;--color-accent:#1E54A5;--color-accent-hover:#163E7A;--type-h1-size:44px;--type-h1-lh:1.05;--type-h1-weight:600;--type-h1-tracking:-0.01em;--type-h2-size:32px;--type-h2-lh:1.15;--type-h2-weight:600;--type-h2-tracking:-0.005em;--type-h3-size:22px;--type-h3-lh:1.3;--type-h3-weight:600;--type-body-size:18px;--type-body-lh:1.55;--type-meta-size:14px;--type-meta-lh:1.5;--type-eyebrow-size:13px;--type-eyebrow-lh:1.4;--type-eyebrow-weight:500;--type-eyebrow-tracking:0.08em;--space-4:4px;--space-8:8px;--space-16:16px;--space-24:24px;--space-32:32px;--space-48:48px;--space-64:64px;--space-96:96px;--space-128:128px;--radius-button:4px;--radius-default:0;--motion-expand:200ms ease;--layout-homepage-block-maxw:1080px;--layout-editorial-column-maxw:720px;--layout-essay-column-maxw:68ch;--layout-nav-desktop:80px;--layout-nav-mobile:60px;--layout-nav-scrolled:56px;--layout-page-top:96px;--layout-gutter:32px;--font-sans:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}@media (max-width:767px){:root{--type-h1-size:30px;--type-h1-lh:1.1;--type-h2-size:26px;--type-h2-lh:1.2;--type-h3-size:20px;--type-body-size:17px;--layout-page-top:64px;--layout-gutter:24px}}*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--ink:#11131a;--paper:#f7f8fa;--royal:#1e54a5;--royal-dim:#163e7a;--coral:var(--royal);--coral-dim:var(--royal-dim);--slate:#5b6472;--surface:#ffffff;--surface-alt:#eef0f4;--line:#e2e5ea;--bg-primary:var(--paper);--bg-secondary:var(--surface);--bg-tertiary:var(--surface-alt);--text-primary:var(--ink);--text-secondary:var(--slate);--text-muted:#6c7280;--accent:var(--royal);--accent-dim:var(--royal-dim);--user-bubble:#d8e4f5;--agent-bubble:var(--surface);--border:var(--line);--error:#d6453c;--radius:12px;--max-width:1100px;--measure:60ch;--measure-wide:70ch;--text-sm:0.9rem;--text-base:1rem;--text-md:1.0625rem;--text-lg:1.15rem}.demoSurface{--bg-primary:#0f1117;--bg-secondary:#1a1d27;--bg-tertiary:#252836;--text-primary:#e8eaf0;--text-secondary:#aab0bd;--text-muted:#757b8d;--accent:#5a8fd6;--accent-dim:#1e54a5;--user-bubble:#1f3358;--agent-bubble:#1e2130;--border:#2e3245;--error:#e06a5a}body,html{height:100%;font-family:var(--font-sans);background:var(--paper);color:var(--ink);-webkit-font-smoothing:antialiased}body{display:flex;flex-direction:column;min-height:100%}a{color:inherit}[role=button]:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--color-ink);outline-offset:2px}summary:focus-visible{outline:2px solid var(--color-ink);outline-offset:2px}[id]{scroll-margin-top:calc(var(--layout-nav-desktop) + 16px)}@media (max-width:767px){[id]{scroll-margin-top:calc(var(--layout-nav-mobile) + 16px)}}@media (prefers-reduced-motion:reduce){*,:after,:before{transition:none!important;animation:none!important}}