:root{--color-primary:#6366f1;--color-primary-light:#818cf8;--color-bg:#0f0f13;--color-surface:#1a1a24;--color-surface-alt:#24243a;--color-surface-hover:#1e293b;--color-text:#e2e8f0;--color-text-muted:#94a3b8;--color-text-subtle:#64748b;--color-text-faint:#475569;--color-border:#2e2e48;--color-border-light:#334155;--color-highlight:#fbbf24;--color-highlight-text:#1a1a24;--color-success:#22c55e;--color-error:#ef4444;--color-warning:#f59e0b;--color-accent:#38bdf8;--color-accent-hover:#0ea5e9;--color-accent-text:#0f0f13;--color-node-idle:#475569;--color-node-active:#fbbf24;--color-node-completed:#22c55e;--color-node-backtracked:#ef4444;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-xxl:48px;--font-size-xs:11px;--font-size-sm:13px;--font-size-md:15px;--font-size-lg:18px;--font-size-xl:24px;--font-size-xxl:32px;--radius-sm:4px;--radius-md:8px;--radius-lg:12px;--radius-full:9999px;--font-body:"Pretendard Variable","Pretendard",-apple-system,BlinkMacSystemFont,sans-serif;--font-mono:"Geist Mono",monospace}