:root{color:var(--tg-theme-text-color,#111);background:var(--tg-theme-bg-color,#fff);font-family:system-ui,-apple-system,sans-serif}body{margin:0;padding:16px}h1{margin:0 0 8px;font-size:22px}.muted{color:var(--tg-theme-hint-color,#888)}.error{color:var(--tg-theme-destructive-text-color,#d33)}