:root{
  --ground:#FFFFFF;
  --surface:#F2F2F7;
  --text:#1C1C1E;
  --text-2:#636366;
  --line:#D1D1D6;
  --blue:#007AFF;
  --blue-press:#0062CC;
  --on-blue:#FFFFFF;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color-scheme:light dark;
}
@media (prefers-color-scheme: dark){
  :root{
    --ground:#000000;
    --surface:#1C1C1E;
    --text:#FFFFFF;
    --text-2:#AEAEB2;
    --line:#38383A;
    --blue:#0A84FF;
    --blue-press:#409CFF;
  }
}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--ground);color:var(--text);
  font-family:var(--sans);font-size:18px;line-height:1.55;
  -webkit-font-smoothing:antialiased;
}

.page{
  max-width:42rem;margin:0 auto;padding:40px 24px 28px;
  min-height:100vh;min-height:100dvh;
  display:flex;flex-direction:column;gap:64px;
}

.brand{display:inline-block;line-height:0;border-radius:6px}
.lockup{display:block;max-width:100%;height:auto}
.lockup .pebble{fill:var(--blue)}
.lockup .dot{fill:#FFFFFF}
.lockup .word{fill:var(--text)}

main{display:flex;flex-direction:column;gap:40px}

h1{
  margin:0 0 20px;
  font-size:clamp(2.6rem,10vw,4.25rem);line-height:1.02;letter-spacing:-.035em;font-weight:700;
  text-wrap:balance;
}
.lede{margin:0;font-size:1.2rem;line-height:1.5;max-width:33em}

.exchange{margin:0;border-top:1px solid var(--line)}
.exchange div{
  display:grid;grid-template-columns:7rem 1fr;gap:20px;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.exchange dt{
  padding-top:.4em;
  font-size:.75rem;line-height:1.3;letter-spacing:.09em;text-transform:uppercase;color:var(--text-2);
}
.exchange dd{margin:0}

.door{background:var(--surface);border-radius:18px;padding:28px}
.door h2{margin:0 0 8px;font-size:1.3rem;line-height:1.25;letter-spacing:-.015em}
.door p{margin:0 0 22px;max-width:31em}
.door .fine{margin:16px 0 0;font-size:.9rem;color:var(--text-2)}

.button{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:54px;padding:0 36px;border-radius:13px;
  background:var(--blue);color:var(--on-blue);
  font-size:1.1875rem;font-weight:700;text-decoration:none;
}
.button:hover{background:var(--blue-press)}
.button:active{background:var(--blue-press)}

a:focus-visible{outline:3px solid var(--text);outline-offset:3px}

footer{
  margin-top:auto;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 24px;
  font-size:.9rem;color:var(--text-2);
}
footer p{margin:0}
footer a{color:inherit;text-underline-offset:3px}
footer .legal{display:flex;gap:18px}

.doc{gap:34px}
.doc h1{margin:0 0 8px;font-size:clamp(2.2rem,7vw,3rem);line-height:1.08;letter-spacing:-.03em}
.doc .dated{margin:0 0 20px;font-size:.9rem;color:var(--text-2)}
.doc h2{margin:0 0 10px;font-size:1.3rem;line-height:1.25;letter-spacing:-.015em}
.doc h3{margin:20px 0 6px;font-size:1rem;line-height:1.3}
.doc p{margin:0 0 12px;max-width:36em}
.doc ul{margin:0 0 12px;padding-left:1.2em;max-width:35em}
.doc li{margin:0 0 6px}
.doc a{color:inherit;text-underline-offset:3px}
.doc section > :last-child,.doc div > :last-child{margin-bottom:0}

@media (max-width:480px){
  .page{padding-top:28px;gap:48px}
  .exchange div{grid-template-columns:1fr;gap:4px}
  .exchange dt{padding-top:0}
  .door{padding:22px}
  .button{width:100%}
}