:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #202522;
  background: #fff;
  font-synthesis: none;
}
* { box-sizing: border-box; }
body { margin: 0; }
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(circle, #bac9c1 1px, transparent 1px);
  background-size: 38px 38px;
  mask-image: radial-gradient(ellipse at 50% 40%, transparent 18%, #0009 100%);
  pointer-events: none;
}
a { color: inherit; text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible { outline: 3px solid #16834c; outline-offset: 5px; border-radius: 3px; }
.page { min-height: 100svh; max-width: 1440px; margin: auto; padding: 28px 5vw 24px; display: flex; flex-direction: column; }
header { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.brand { font-size: 24px; font-weight: 650; letter-spacing: -.8px; }
.back-link { font-size: 14px; color: #627168; }
main { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; padding: 64px 0 52px; }
.download-hero { width: 100%; text-align: center; }
.app-icon { display: block; width: 160px; height: 160px; margin: 0 auto; }
.requirement { color: #78827c; font-size: 14px; line-height: 1.5; margin: 12px 0 28px; }
h1 { font-size: clamp(36px, 4.6vw, 64px); font-weight: 600; line-height: 1.08; letter-spacing: -.055em; margin: 0 auto 24px; max-width: 900px; text-wrap: balance; }
.download-note { color: #78827c; font-size: 18px; line-height: 1.5; margin: 0; }
.download-note a { color: #16834c; text-decoration: underline; text-underline-offset: 4px; }
.installation { width: 100%; max-width: 800px; margin-top: 72px; padding-top: 28px; border-top: 1px solid #e4eae6; }
h2 { text-align: center; color: #56645b; font-size: 16px; font-weight: 500; margin: 0 0 22px; }
ol { list-style: none; display: grid; grid-template-columns: 1fr 1.2fr 1.2fr; gap: 28px; padding: 0; margin: 0; }
li { display: flex; align-items: flex-start; gap: 10px; color: #78827c; font-size: 14px; line-height: 1.5; }
.step-number { flex: 0 0 24px; height: 24px; display: grid; place-items: center; border: 1px solid #dce7df; border-radius: 50%; color: #16834c; font-size: 12px; }
strong { font-weight: 500; color: #56645b; }
footer { display: flex; justify-content: space-between; gap: 20px; color: #78827c; font-size: 12px; line-height: 1.5; }
@media (max-width: 600px) {
  .page { padding: 22px 24px; }
  .brand { font-size: 21px; }
  .back-link { font-size: 12px; }
  main { padding: 48px 0 40px; }
  .app-icon { width: 120px; height: 120px; }
  .requirement { font-size: 12px; margin: 10px 0 26px; }
  h1 { font-size: clamp(32px, 8.5vw, 46px); margin-bottom: 20px; }
  .desktop-break { display: none; }
  .download-note { font-size: 15px; }
  .installation { max-width: 340px; margin-top: 48px; padding-top: 24px; }
  h2 { font-size: 14px; margin-bottom: 20px; }
  ol { grid-template-columns: 1fr; gap: 16px; }
  li { align-items: center; font-size: 13px; }
  footer { flex-direction: column; align-items: center; gap: 8px; text-align: center; }
}

/* The introduction plays once and holds its installation end frame. */
main { padding-top: 24px; }
.intro { width: min(100%, 720px); aspect-ratio: 8 / 5; margin: 0 auto; position: relative; overflow: hidden; border-radius: 20px; background: white; }
.intro-poster, .intro video { width: 100%; height: 100%; object-fit: contain; display: block; }
.intro video { position: absolute; inset: 0; }
[hidden] { display: none !important; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.download-hero h1 { font-size: clamp(32px, 4vw, 48px); }
.installation { margin-top: 42px; }
@media (max-width: 600px) {
  main { padding-top: 28px; }
  .intro { width: calc(100% + 24px); margin-left: -12px; border-radius: 12px; }
  .requirement { margin-top: 14px; margin-bottom: 20px; }
  .installation { margin-top: 36px; }
}

.download-hero .requirement { margin: 8px 0 16px; }
.download-hero .intro { margin-top: 28px; }

.intro { cursor: default; }