:root{--font-sans:"Poppins",ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--font-brand:var(--font-sans);--color-bg-page:#ffffff;--color-bg-surface:#ffffff;--color-bg-muted:#f8fafc;--color-border:#e5e7eb;--color-text-primary:#0f172a;--color-text-secondary:#475569;--color-text-inverse:#ffffff;--color-bookside-blue-1:#1ea7f5;--color-bookside-blue-2:#38b6ff;--color-bookside-yellow:#ffd200;--color-bookside-white:#ffffff;--color-brand-500:var(--color-bookside-blue-2);--color-brand-600:var(--color-bookside-blue-1);--color-brand-700:#198fd5;--color-brand-900:#16233f;--color-accent-red:#ef4444;--color-accent-green:#22c55e;--color-accent-orange:#f59e0b;--color-accent-purple:#38b6ff;--color-accent-violet:#1ea7f5;--color-accent-pink:#ec4899;--color-accent-teal:#14b8a6;--color-accent-gold:#eab308;--color-accent-blue:#3b82f6;--color-accent-gray:#64748b;--radius-xs:8px;--radius-sm:10px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-pill:999px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--space-10:40px;--space-12:48px;--space-16:64px;--shadow-sm:0 2px 8px rgba(15,23,42,0.08);--shadow-md:0 6px 18px rgba(15,23,42,0.12);--shadow-lg:0 12px 28px rgba(15,23,42,0.16);--duration-fast:160ms;--duration-base:220ms;--ease-standard:cubic-bezier(0.4,0,0.2,1)}html.dark{--color-bg-page:#16233f;--color-bg-surface:#1d2d52;--color-bg-muted:#243760;--color-border:#3a4a6c;--color-text-primary:#e2e8f0;--color-text-secondary:#94a3b8;--color-text-inverse:#0f172a;--shadow-sm:0 2px 10px rgba(22,35,63,0.42);--shadow-md:0 8px 24px rgba(22,35,63,0.48);--shadow-lg:0 14px 30px rgba(22,35,63,0.54)}