:root{--cs-bg:#fafafa;--cs-fg:#1a1a1a;--cs-muted:#555;--cs-accent:#6b5b95;--cs-lives:#d9756e;--cs-font:system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--cs-correct:#2f855a;--cs-wrong:#c53030;--cs-border:#ddd;--cs-card:#fff;--cs-group-0:#ffc6c2;--cs-group-1:#fae9da;--cs-group-2:#c3e0dd;--cs-group-3:#e7d9f2;--cs-tile-fg:#1a1a1a}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--cs-bg);min-height:100dvh;color:var(--cs-fg);font-family:var(--cs-font);margin:0;line-height:1.5}@media (prefers-color-scheme:dark){:root{--cs-bg:#121212;--cs-fg:#f0f0f0;--cs-muted:#aaa;--cs-card:#1e1e1e;--cs-border:#444}}