:root { color-scheme: light dark; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--tg-theme-bg-color, #fff); color: var(--tg-theme-text-color, #1c1c1e); } body { margin: 0; } main { max-width: 410px; margin: 0 auto; padding: 48px 24px; text-align: center; } .gift { font-size: 64px; } h1 { margin: 16px 0 8px; } p { color: var(--tg-theme-hint-color, #6d6d72); line-height: 1.5; } form { margin-top: 26px; text-align: left; } label { display:block; margin-bottom:8px; font-weight: 600; } input, button { box-sizing: border-box; width:100%; border-radius:12px; font:inherit; padding:14px; } input { border:1px solid #c7c7cc; background:transparent; color:inherit; } button { margin-top:14px; border:0; background:var(--tg-theme-button-color, #2481cc); color:var(--tg-theme-button-text-color, #fff); font-weight:700; cursor:pointer; } button:disabled { opacity:.55; }