:root{color-scheme:light;--bg-default:#ffffff;--bg-subtle:#f9fafb;--bg-muted:#f3f4f6;--bg-canvas:#f6f7fb;--text-primary:#1f2937;--text-secondary:#6b7280;--text-muted:#9ca3af;--border-subtle:#e5e7eb;--border-default:#d1d5db;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-soft:#dbeafe;--success:#059669;--warning:#d97706;--error:#dc2626;--success-soft:#ecfdf5;--warning-soft:#fff7ed;--error-soft:#fef2f2;--info-soft:#eff6ff;--neutral-soft:#f3f4f6;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:24px;--space-6:32px;--space-7:40px;--space-8:48px;--font-size-xs:12px;--font-size-sm:13px;--font-size-base:14px;--font-size-md:16px;--font-size-lg:18px;--font-size-xl:20px;--font-size-2xl:24px;--font-weight-regular:400;--font-weight-medium:500;--font-weight-semibold:600;--line-height-base:1.5;--line-height-heading:1.3;--radius-sm:6px;--radius-md:8px;--radius-lg:12px;--radius-xl:16px;--radius-pill:999px;--shadow-none:none;--shadow-sm:0 1px 2px rgba(15,23,42,0.04);--transition-fast:150ms ease;--bg:var(--bg-canvas);--surface:var(--bg-default);--surface-soft:var(--bg-subtle);--text:var(--text-primary);--muted:var(--text-secondary);--border:var(--border-default);--danger:var(--error)}