:root{--color-bg:#fafaf8;--color-surface:#fff;--color-surface-alt:#f5f5f3;--color-text:#2a2a2a;--color-text-secondary:#6a6a6a;--color-text-muted:#8a8a8a;--color-border:#ececec;--color-border-strong:#d8d8d8;--color-accent:#2979ff;--color-accent-hover:#1e60d0;--color-accent-soft:#eaf2ff;--color-danger:#d32f2f;--color-danger-hover:#b71c1c;--color-success:#43a047;--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;--space-20:80px;--space-24:96px;--space-32:128px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--font-sans:-apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Helvetica Neue", sans-serif;--font-xs:12px;--font-sm:14px;--font-base:16px;--font-lg:18px;--font-xl:22px;--font-2xl:28px;--font-3xl:40px;--font-4xl:56px;--leading-tight:1.2;--leading-base:1.5;--leading-loose:1.7;--shadow-sm:0 1px 2px #0000000a;--shadow-md:0 2px 8px #0000000f;--shadow-lg:0 8px 24px #00000014;--container-narrow:720px;--container-base:1100px;--container-wide:1280px;--transition-fast:.15s ease;--transition-base:.2s ease}