*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg:#f5f5f0;--color-surface:#fff;--color-primary:#1a1a2e;--color-accent:#e63946;--color-correct:#2d6a4f;--color-wrong:#c1121f;--color-text:#1a1a2e;--color-muted:#6b7280;--color-border:#e5e7eb;--radius:12px;--radius-sm:8px;--shadow:0 2px 8px #00000014}html,body{height:100%}body{background:var(--color-bg);color:var(--color-text);-webkit-font-smoothing:antialiased;font-family:system-ui,-apple-system,sans-serif}#root{flex-direction:column;max-width:480px;min-height:100%;margin:0 auto;display:flex}a{color:inherit;text-decoration:none}button{cursor:pointer;font:inherit;background:0 0;border:none}