:root{--fs-xs:0.75rem;--fs-sm:0.875rem;--fs-base:1rem;--fs-md:1.125rem;--fs-lg:1.5rem;--fs-xl:2rem;--fs-2xl:3rem;--fs-3xl:clamp(2.5rem,6vw + 1rem,4.5rem);--lh-tight:1.05;--lh-snug:1.25;--lh-body:1.6;--lh-mono:1.4;--tracking-display:-0.03em;--tracking-tight:-0.015em;--tracking-normal:0;--tracking-wide:0.08em;--surface-0:#0a0a0d;--surface-1:#111116;--surface-2:#1a1a22;--surface-3:#232330;--text-primary:#fafaf7;--text-secondary:hsla(60,23%,97%,.72);--text-tertiary:hsla(60,23%,97%,.48);--text-disabled:hsla(60,23%,97%,.24);--border-subtle:hsla(0,0%,100%,.06);--border-base:hsla(0,0%,100%,.1);--border-strong:hsla(0,0%,100%,.18);--accent-500:#f97316;--accent-600:#ea580c;--accent-700:#c2410c;--accent-glow:0 0 0 1px rgba(249,115,22,.4),0 8px 32px -8px rgba(249,115,22,.5),0 0 64px -16px rgba(249,115,22,.3);--color-success:#10b981;--color-warning:#f59e0b;--color-danger:#ef4444;--color-info:#38bdf8;--space-1:0.25rem;--space-2:0.5rem;--space-3:0.75rem;--space-4:1rem;--space-6:1.5rem;--space-8:2rem;--space-12:3rem;--space-16:4rem;--space-24:6rem;--space-32:8rem;--section-py-mobile:var(--space-16);--section-py-desktop:var(--space-32);--container-max:1240px;--container-px-mobile:var(--space-4);--container-px-desktop:var(--space-12);--ease-out-expo:cubic-bezier(0.16,1,0.3,1);--ease-out-quart:cubic-bezier(0.25,1,0.5,1);--ease-spring:cubic-bezier(0.32,0.72,0,1);--ease-in-out:cubic-bezier(0.65,0,0.35,1);--ease-linear:linear;--dur-instant:100ms;--dur-fast:180ms;--dur-base:280ms;--dur-slow:480ms;--dur-hero:800ms;--dur-stagger:80ms}