:root{--color-white:#FFFFFF;--color-bg-primary:#FFFFFF;--color-bg-secondary:#F8F9FA;--color-bg-tertiary:#F1F3F5;--color-bg-hover:#E9ECEF;--color-text-primary:#1A1A2E;--color-text-secondary:#495057;--color-text-tertiary:#868E96;--color-text-placeholder:#ADB5BD;--color-text-inverse:#FFFFFF;--color-accent:#4361EE;--color-accent-hover:#3A56D4;--color-accent-light:#4361EE12;--color-accent-lighter:#4361EE08;--color-success:#2EC4B6;--color-success-light:#2EC4B612;--color-warning:#FF6B6B;--color-warning-light:#FF6B6B12;--color-border:#E0E0E0;--color-border-light:#F1F3F5;--color-border-focus:var(--color-accent);--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;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:24px;--radius-full:9999px;--shadow-subtle:0 1px 3px rgba(0, 0, 0, 0.04),0 1px 2px rgba(0, 0, 0, 0.06);--shadow-medium:0 4px 12px rgba(0, 0, 0, 0.08),0 2px 4px rgba(0, 0, 0, 0.04);--shadow-elevated:0 12px 32px rgba(0, 0, 0, 0.12),0 4px 8px rgba(0, 0, 0, 0.06);--transition-fast:150ms cubic-bezier(0.4, 0, 0.2, 1);--transition-normal:300ms cubic-bezier(0.4, 0, 0.2, 1);--transition-slow:500ms cubic-bezier(0.4, 0, 0.2, 1);--transition-bounce:500ms cubic-bezier(0.34, 1.56, 0.64, 1);--font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;--font-size-xs:0.75rem;--font-size-sm:0.875rem;--font-size-base:1rem;--font-size-lg:1.125rem;--font-size-xl:1.25rem;--font-size-2xl:1.5rem;--font-size-3xl:2rem;--font-size-4xl:2.5rem;--font-weight-normal:400;--font-weight-medium:500;--font-weight-semibold:600;--font-weight-bold:700;--line-height-tight:1.25;--line-height-normal:1.5;--line-height-relaxed:1.75;--z-header:100;--z-dropdown:200;--z-modal:300;--z-toast:400;--header-height:56px;--container-max:1200px;--touch-target:44px}