:root{--bg:#ffffff;--bg-alt:#f6f8f7;--surface:#ffffff;--surface-alt:#f1f5f2;--border:#dbe3de;--text:#0f172a;--text-muted:#475569;--text-soft:#64748b;--primary:#15803d;--primary-hover:#166534;--primary-active:#14532d;--primary-soft:#dcfce7;--focus:#2563eb;--radius-sm:12px;--radius-md:16px;--radius-lg:20px;--radius-pill:999px;--shadow-sm:0 6px 18px rgba(15,23,42,0.08);--shadow-md:0 12px 30px rgba(15,23,42,0.1);--shadow-lg:0 18px 44px rgba(15,23,42,0.14);--ease:cubic-bezier(.2,.8,.2,1);--container:1180px;--container-wide:1240px;--header-height:78px;--measure:72ch;--measure-narrow:60ch;--side-nav-width:264px;--side-nav-collapsed-width:92px;--font-h1:clamp(2.35rem,5vw,3.75rem);--font-h2:clamp(1.9rem,3.4vw,2.8rem);--font-h3:clamp(1.2rem,2vw,1.6rem);--font-body:1rem;--font-small:0.95rem;--line-tight:1.15;--line-body:1.6;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:48px;--space-8:64px;--space-9:88px}:root[data-theme=dark]{--bg:#0b0f12;--bg-alt:#111827;--surface:#0f172a;--surface-alt:#1f2937;--border:#27303a;--text:#e2e8f0;--text-muted:#cbd5e1;--text-soft:#94a3b8;--primary:#22c55e;--primary-hover:#16a34a;--primary-active:#15803d;--primary-soft:rgba(34,197,94,0.18);--focus:#60a5fa;--shadow-sm:0 6px 18px rgba(2,6,23,0.45);--shadow-md:0 14px 34px rgba(2,6,23,0.55);--shadow-lg:0 20px 48px rgba(2,6,23,0.6)}