:root{--font-sans:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;--font-heading:'Outfit',var(--font-sans);--text-base-size:16px;--font-size-xs:0.8125rem;--font-size-sm:0.9375rem;--font-size-base:1.0625rem;--font-size-md:1.1875rem;--font-size-lg:1.375rem;--font-size-xl:1.75rem;--font-size-2xl:2.25rem;--font-size-3xl:3.125rem;--line-height-normal:1.65;--line-height-heading:1.18;--spacing-1:.25rem;--spacing-2:.5rem;--spacing-3:.75rem;--spacing-4:1rem;--spacing-5:1.25rem;--spacing-6:1.5rem;--spacing-8:2rem;--spacing-10:2.5rem;--spacing-12:3rem;--spacing-16:4rem;--color-brand-dark:#0a1128;--color-brand-primary:#0f172a;--color-brand-blue:#1d4ed8;--color-brand-cyan:#0284c7;--color-brand-teal:#0d9488;--color-bg:#f4f7fb;--color-surface:#fff;--color-surface-subtle:#f8fafc;--color-text-main:#0f172a;--color-text-muted:#475569;--color-text-light:#64748b;--color-text-inverse:#fff;--color-border:#e2e8f0;--color-border-focus:#0284c7;--gradient-brand-primary:linear-gradient(135deg,#0284c7 0%,#0d9488 100%);--shadow-sm:0 1px 3px rgba(15,23,42,0.05);--shadow-md:0 4px 12px -2px rgba(15,23,42,0.06),0 2px 6px -1px rgba(15,23,42,0.04);--shadow-lg:0 12px 28px -6px rgba(15,23,42,0.08),0 6px 12px -3px rgba(15,23,42,0.04);--shadow-xl:0 20px 40px -10px rgba(15,23,42,0.12),0 8px 16px -4px rgba(15,23,42,0.06);--touch-target-min:48px;--radius-sm:6px;--radius-md:12px;--radius-lg:18px;--radius-xl:26px;--radius-full:9999px;--container-max-width:1240px;--container-prose-width:820px}html.font-scale-large{--text-base-size:19px}html.font-scale-xlarge{--text-base-size:22px}[data-theme="high-contrast"]{--color-bg:#fff;--color-surface:#fff;--color-text-main:#000;--color-text-muted:#111;--color-border:#000;--color-border-focus:#000}[data-theme="dark"]{--color-bg:#070b14;--color-surface:#101726;--color-surface-subtle:#172033;--color-text-main:#f8fafc;--color-text-muted:#94a3b8;--color-border:#1e293b;--shadow-md:0 4px 12px rgba(0,0,0,0.4);--shadow-lg:0 12px 28px rgba(0,0,0,0.5);--shadow-xl:0 20px 40px rgba(0,0,0,0.6)}