:root{--font-sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,"Helvetica Neue",Arial;--fs-display:28px;--fs-title:22px;--fs-body:14px;--fs-small:12px;--lh-display:1.25;--lh-title:1.3;--lh-body:1.45;--sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--bg:#fff;--surface:#f6f8fb;--text:#0b1220;--text-muted:#5b6473;--border:rgba(15,18,22,.12);--blue-50:#eef3ff;--blue-100:#d9e4ff;--blue-200:#b5ccff;--blue-300:#8fb2ff;--blue-400:#6a98ff;--blue-500:#3f7bff;--blue-600:#1f67f2;--blue-700:#153e93;--blue-800:#0f2c6b;--blue-900:#0b1b3f;--grad-primary:linear-gradient(135deg,var(--blue-600) 0%,var(--blue-500) 40%,var(--blue-800) 100%);--grad-cta:linear-gradient(135deg,var(--blue-500) 0%,var(--blue-700) 100%);--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--shadow-1:0 1px 2px rgba(0,0,0,.06),0 10px 30px rgba(0,0,0,.06);--shadow-2:0 2px 8px rgba(0,0,0,.08),0 20px 50px rgba(0,0,0,.1);--focus:color-mix(in srgb,var(--blue-600) 60%,#fff)}:root.dark{--bg:#0b0c0f;--surface:#12151b;--text:#f5f7fa;--text-muted:#a9b1bd;--border:hsla(0,0%,100%,.12)}