body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--tg-theme-bg-color, #ffffff);color:var(--tg-theme-text-color, #1a1a1a)}.app{max-width:480px;margin:0 auto;padding:24px 16px}h1{font-size:20px;margin:0 0 12px}.hint{font-size:14px;line-height:1.5;color:var(--tg-theme-hint-color, #707579)}button{width:100%;padding:14px;font-size:16px;border:none;border-radius:10px;cursor:pointer;background:var(--tg-theme-button-color, #3390ec);color:var(--tg-theme-button-text-color, #ffffff)}button:disabled{opacity:.6;cursor:default}.card{margin-top:20px;padding:16px;border-radius:10px;background:var(--tg-theme-secondary-bg-color, #f1f1f1)}.greeting{margin:0;font-size:18px;font-weight:600}.meta{margin:8px 0 0;font-size:13px;color:var(--tg-theme-hint-color, #707579)}.card.error{background:var(--tg-theme-destructive-text-color, #e53935);color:#fff}.card.error p{margin:0;font-size:14px}