:root {
  color: #293248;
  background: #f4f1f8;
  font-family: "Segoe UI", Arial, sans-serif;
  font-synthesis: none;
  --purple: #6850a4;
}
* { box-sizing: border-box; }
body { margin: 0; }
a { color: inherit; -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 3px solid var(--purple); outline-offset: 6px; }
main { min-height: 100svh; max-width: 960px; margin: auto; padding: 32px 24px 56px; }
.wallet { display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: clamp(44px, 8vh, 90px); }
.mark { display: block; width: 240px; height: 240px; object-fit: contain; }
.mark.mark-qr { width: min(280px, 100%); height: auto; aspect-ratio: 1; }
h1 { margin: 12px 0 14px; font-size: clamp(42px, 6vw, 64px); line-height: 1.1; letter-spacing: -.055em; font-weight: 600; }
.caption { margin: 0; color: #6b6777; font-size: 15px; line-height: 1.6; }
.download { display: inline-flex; align-items: center; justify-content: center; gap: 28px; margin-top: 36px; padding: 17px 25px; border-radius: 10px; background: var(--purple); color: #fff; text-decoration: none; font-size: 16px; font-weight: 600; }
.download:hover { background: #58418f; }
.download span { font-size: 22px; line-height: 1; font-weight: 400; }
.version { margin: 18px 0 12px; font-size: 11px; line-height: 1.6; color: #767180; }
.checksum { padding: 8px; font-size: 10px; color: #767180; text-decoration-thickness: 1px; text-underline-offset: 3px; }
[hidden] { display: none !important; }
@media (max-width: 540px) {
  main { padding: 20px 22px 36px; }
  .wallet { padding-top: 52px; }
  .mark { width: 210px; height: 210px; }
  .caption { font-size: 13px; }
  .download { margin-top: 32px; font-size: 15px; }
}
@media (max-height: 700px) {
  .wallet { padding-top: 30px; }
  .mark { width: 175px; height: 175px; }
}