@font-face {
  font-family: "Inter Variable";
  src: url("/fonts/InterVariable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
:root { color-scheme: dark; font-family: "Inter Variable", Inter, system-ui, sans-serif; color: #edf0f3; background: #0b0e12; }
* { box-sizing: border-box; }
body { margin: 0; font-size: 16px; line-height: 1.6; -webkit-font-smoothing: antialiased; }
main { max-width: 1000px; margin: 0 auto; padding: 24px 32px 56px; }
a { color: inherit; text-decoration: none; -webkit-tap-highlight-color: transparent; }
a:focus-visible { outline: 2px solid #98d5e9; outline-offset: 5px; border-radius: 8px; }
svg { display: block; flex: none; }
.skip-link { position: absolute; left: 20px; top: -100px; background: #edf0f3; color: #090c10; padding: 8px 16px; z-index: 1; }
.skip-link:focus { top: 12px; }
.masthead { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-bottom: 20px; }
.brand { display: inline-flex; align-items: center; }
.brand img { display: block; width: 100px; height: 30px; object-fit: contain; }
nav { display: flex; align-items: center; gap: 4px; }
nav a { display: flex; align-items: center; justify-content: center; padding: 0 16px; min-height: 44px; border-radius: 12px; color: #a1a9b2; white-space: nowrap; font-size: 14px; transition: background .16s ease, color .16s ease; }
nav a[aria-current] { color: #fff; background: #22272e; }
#content { margin-top: 28px; }
h1, h2, p { margin: 0; }
h1 { font-size: 30px; line-height: 1.3; font-weight: 500; letter-spacing: -.035em; margin-bottom: 24px; }
.signing-flow { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); padding: 0; margin: 0; list-style: none; gap: 4px; }
.signing-flow li { position: relative; background: #181d24; padding: 24px; min-width: 0; }
.signing-flow li:first-child { border-radius: 20px 0 0 20px; }
.signing-flow li:last-child { border-radius: 0 20px 20px 0; background: #1c2229; }
.flow-icon { display: inline-flex; color: #aebbc5; margin-bottom: 22px; }
.signing-flow li:last-child .flow-icon { color: #a3d4e8; }
.signing-flow h2 { font-size: 21px; line-height: 1.3; font-weight: 500; letter-spacing: -.025em; }
.signing-flow p { margin-top: 7px; font-size: 14px; color: #a1aab4; }
.flow-arrow { position: absolute; top: 30px; right: -14px; z-index: 1; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; color: #a1aab4; background: #0b0e12; }
.flow-arrow svg { width: 16px; height: 16px; }
.architecture { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; margin-top: 32px; }
.architecture h2 { font-size: 16px; font-weight: 500; margin-bottom: 6px; }
.architecture p { color: #9fa8b3; font-size: 15px; }
.text-link { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; margin-top: 34px; color: #bac4ce; font-size: 15px; }
.text-link svg { width: 18px; height: 18px; }
.update { display: flex; align-items: center; gap: 36px; padding: 32px; border-radius: 20px; background: #181d24; }
.update time { display: grid; gap: 2px; flex: none; color: #aab5c0; font-size: 14px; font-variant-numeric: tabular-nums; }
.update time span:last-child { color: #7f8a96; }
.update h2 { font-size: 20px; line-height: 1.4; font-weight: 400; letter-spacing: -.025em; }
.lead { color: #a9b3be; font-size: 16px; margin: -12px 0 28px; }
.note { font-size: 13px; color: #909ca8; }
@media (hover: hover) and (pointer: fine) {
  nav a:hover { color: #fff; background: #22272e; }
  .text-link:hover { color: #fff; }
}
@media (max-width: 700px) {
  main { padding: 24px 20px 40px; }
  .masthead { flex-direction: column; align-items: flex-start; gap: 16px; }
  nav { width: 100%; }
  nav a { flex: 1; padding: 0 8px; }
  #content { margin-top: 20px; }
  h1 { font-size: 27px; margin-bottom: 24px; }
  .signing-flow { grid-template-columns: 1fr; }
  .signing-flow li { display: grid; grid-template-columns: 32px 1fr; column-gap: 16px; padding: 23px; }
  .signing-flow li:first-child { border-radius: 18px 18px 0 0; }
  .signing-flow li:last-child { border-radius: 0 0 18px 18px; }
  .flow-icon { grid-row: span 2; margin: 3px 0 0; }
  .signing-flow h2 { font-size: 20px; }
  .signing-flow p { margin-top: 3px; }
  .flow-arrow { top: auto; right: 25px; bottom: -15px; transform: rotate(90deg); }
  .architecture { grid-template-columns: 1fr; gap: 20px; margin-top: 26px; }
  .text-link { margin-top: 24px; }
  .lead { margin-top: -12px; font-size: 16px; }
  .update { gap: 24px; padding: 24px; }
  .update h2 { font-size: 20px; }
}