:root{--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;--color-background-primary: #ffffff;--color-background-secondary: #f7f7f8;--color-background-tertiary: #ededf0;--color-text-primary: #1a1a2e;--color-text-secondary: #6b6b80;--color-text-tertiary: #9999aa;--color-border-secondary: #d4d4dc;--color-border-tertiary: #e8e8ee;--border-radius-lg: 12px;--border-radius-md: 8px;--color-accent: #534AB7;--color-accent-dim: #3C3489;--color-accent-bg: #EEEDFE;--color-accent-text: #EEEDFE;--color-success: #0F6E56;--color-success-bg: #E1F5EE;--body-bg: #f0f0f4}[data-theme=dark]{--color-background-primary: #1e1e2e;--color-background-secondary: #27273a;--color-background-tertiary: #313145;--color-text-primary: #e8e8f0;--color-text-secondary: #9090a8;--color-text-tertiary: #60607a;--color-border-secondary: #3a3a55;--color-border-tertiary: #2a2a42;--color-accent-bg: #2a265e;--color-success: #34d399;--color-success-bg: #0a2e24;--body-bg: #13131e}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}@keyframes revealChallenge{0%{opacity:0;transform:translateY(10px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}body{font-family:var(--font-sans);background:var(--body-bg);color:var(--color-text-primary);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}#root{width:100%;max-width:960px}