:root{color-scheme:light;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif}body{margin:0;background:var(--tg-theme-bg-color, #ffffff);color:var(--tg-theme-text-color, #111111)}main{max-width:560px;margin:0 auto;padding:24px 16px}h1{font-size:28px;margin:0 0 16px}button{min-height:44px;padding:0 20px;border:0;border-radius:12px;background:#2f6f4f;color:#fff;font-size:16px}