:root {
  color-scheme:dark;
  --bg:#141b1a;
  --panel:#1b2422;
  --line:#39423d;
  --ink:#edece0;
  --muted:#a3aca2;
  --accent:#cfdd99;
  font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink);
}

* {
  box-sizing:border-box;
}

body {
  margin:0;
}

a {
  color:var(--accent);
  text-underline-offset:5px;
}

a:hover {
  color:var(--ink);
}

:focus-visible {
  outline:3px solid var(--accent);
  outline-offset:6px;
}

.shell {
  max-width:1120px;
  margin:auto;
  padding:0 40px;
}

.muted {
  color:var(--muted);
}

header {
  min-height:112px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  border-bottom:1px solid var(--line);
}

.wordmark {
  display:flex;
  align-items:center;
  gap:12px;
  color:var(--ink);
  text-decoration:none;
  font-size:13px;
  font-weight:700;
  letter-spacing:.12em;
}

.mark {
  font-size:36px;
  font-weight:400;
  color:var(--accent);
}

.header-link {
  font-size:13px;
  text-decoration:none;
}

.hero {
  padding:76px 0 52px;
  position:relative;
}

.eyebrow,.edition,.return {
  font:11px/1.7 ui-monospace,SFMono-Regular,Consolas,monospace;
  letter-spacing:.12em;
  color:var(--muted);
}

.hero>.eyebrow {
  margin:0 0 28px;
  color:var(--accent);
}

h1 {
  font-size:clamp(46px,7.4vw,88px);
  line-height:1.04;
  font-weight:450;
  letter-spacing:-.055em;
  margin:0 0 30px;
}

h1 span {
  color:var(--accent);
}

.intro {
  font-size:21px;
  line-height:1.5;
  max-width:500px;
  margin:0 0 18px;
}

.description {
  font-size:16px;
  line-height:1.7;
  color:var(--muted);
  margin:0 0 28px;
}

.button {
  display:inline-flex;
  gap:50px;
  align-items:center;
  background:var(--accent);
  color:#192318;
  padding:14px 20px;
  text-decoration:none;
  font-size:14px;
  font-weight:650;
}

.button:hover {
  background:var(--ink);
  color:#192318;
}

.edition {
  margin:30px 0 0;
}

.dot {
  display:inline-block;
  width:6px;
  height:6px;
  background:var(--accent);
  border-radius:50%;
  margin-right:8px;
}

.exchange {
  display:grid;
  grid-template-columns:1fr 40px 1.4fr 40px 1fr;
  align-items:center;
  border:1px solid var(--line);
  padding:30px 28px 20px;
  gap:12px;
  background:var(--panel);
}

.exchange strong {
  display:block;
  font-size:20px;
  font-weight:500;
  margin:12px 0 6px;
}

.exchange div>span:last-child {
  color:var(--muted);
  font-size:12px;
}

.relay {
  border:1px solid #66734c;
  padding:22px 12px;
  text-align:center;
}

.endpoint {
  text-align:center;
}

.arrow {
  text-align:center;
  color:var(--accent);
  font-size:24px;
}

.return {
  grid-column:1/-1;
  text-align:center;
  margin:12px 0 0;
  font-size:10px;
}

.return span {
  margin-left:14px;
}

.details {
  display:grid;
  grid-template-columns:1fr 1.2fr;
  gap:64px;
  padding:58px 0;
  border-bottom:1px solid var(--line);
}

h2 {
  font-size:30px;
  line-height:1.3;
  font-weight:450;
  letter-spacing:-.02em;
  margin:0;
}

h2 .eyebrow {
  display:block;
  color:var(--accent);
  margin-bottom:18px;
  letter-spacing:.1em;
}

.details p {
  font-size:15px;
  line-height:1.8;
  margin:0 0 18px;
  color:var(--muted);
}

.details p:last-child {
  margin-bottom:0;
}

.details a {
  font-size:14px;
}

dl {
  margin:0 0 24px;
}

dl div {
  display:flex;
  justify-content:space-between;
  gap:20px;
  border-bottom:1px solid var(--line);
  padding:10px 0;
  font-size:14px;
}

dt {
  color:var(--muted);
}

dd {
  margin:0;
  font-variant-numeric:tabular-nums;
}

.notice {
  padding:28px;
  border-left:2px solid var(--accent);
  background:var(--panel);
  margin:44px 0;
}

.notice p {
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
  margin:10px 0 0;
  max-width:750px;
}

footer {
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  flex-wrap:wrap;
  border-top:1px solid var(--line);
  padding:28px 0 40px;
  font:10px/1.8 ui-monospace,monospace;
  letter-spacing:.06em;
}

footer nav {
  display:flex;
  gap:24px;
}

footer a {
  text-decoration:none;
}

.skip {
  position:absolute;
  left:16px;
  top:-100px;
  background:var(--accent);
  color:#141b1a;
  padding:12px;
  z-index:1;
}

.skip:focus {
  top:12px;
}

@media(min-width:960px) {
  .hero {
    padding-bottom:64px;
  }
  .hero:after {
    content:'↔';
    position:absolute;
    right:38px;
    top:80px;
    font-size:230px;
    font-weight:200;
    color:#394834;
    line-height:1;
    pointer-events:none;
  }
  .intro,.description {
    position:relative;
    z-index:1;
  }
}

@media(max-width:650px) {
  .shell {
    padding:0 22px;
  }
  header {
    min-height:88px;
  }
  .wordmark {
    gap:7px;
    font-size:10px;
    letter-spacing:.07em;
  }
  .mark {
    font-size:25px;
  }
  .header-link {
    font-size:11px;
  }
  .hero {
    padding-top:48px;
  }
  .intro {
    font-size:19px;
  }
  .edition {
    font-size:9px;
  }
  .details {
    grid-template-columns:1fr;
    gap:24px;
    padding:38px 0;
  }
  .exchange {
    grid-template-columns:1fr;
    padding:24px;
  }
  .arrow {
    transform:rotate(90deg);
    font-size:22px;
  }
  .relay {
    padding:18px;
  }
  .return {
    margin-top:18px;
  }
  .notice {
    padding:22px;
    margin:32px 0;
  }
  footer {
    display:block;
  }
  footer nav {
    margin:16px 0;
  }
}

.documentation {
  padding:56px 0 0;
  max-width:880px;
  margin:auto;
  overflow-wrap:anywhere;
}
.documentation h1 {
  font-size:clamp(36px,6vw,64px);
  margin:20px 0;
}
.doc-nav {
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  padding:16px 0 32px;
  font-size:14px;
}
.documentation section {
  border-top:1px solid var(--line);
  padding:36px 0;
  scroll-margin-top:24px;
}
.documentation h3 {
  font-size:19px;
  font-weight:500;
  margin:28px 0 12px;
}
.documentation p,.documentation li {
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.documentation li {
  margin-bottom:10px;
}
.documentation strong {
  color:var(--ink);
}
.documentation code {
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:.88em;
  color:var(--ink);
}
.documentation pre {
  padding:20px;
  background:var(--panel);
  border:1px solid var(--line);
  white-space:pre-wrap;
  overflow-wrap:anywhere;
  line-height:1.7;
}
.table-scroll {
  overflow-x:auto;
  margin:24px 0;
}
.documentation table {
  border-collapse:collapse;
  width:100%;
  min-width:520px;
  font-size:14px;
  line-height:1.6;
}
.documentation th,.documentation td {
  padding:14px 12px;
  border-bottom:1px solid var(--line);
  text-align:left;
  vertical-align:top;
}
.documentation th {
  color:var(--accent);
  font-weight:500;
  white-space:nowrap;
}
.documentation td {
  color:var(--muted);
}

.hero-actions {
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:24px;
  font-size:14px;
}
.quickstart {
  padding:52px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:24px;
}
.quickstart>.eyebrow {
  color:var(--accent);
  margin:0 0 16px;
}
.quickstart h3 {
  font-size:21px;
  font-weight:500;
  margin:36px 0 12px;
}
.quickstart p,.quickstart li {
  max-width:820px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
}
.quickstart .intro {
  font-size:20px;
  color:var(--ink);
}
.quickstart strong {
  color:var(--ink);
}
.quickstart code {
  color:var(--ink);
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  font-size:.9em;
  overflow-wrap:anywhere;
}
.quickstart pre {
  padding:20px;
  border:1px solid var(--line);
  background:var(--panel);
  line-height:1.7;
  white-space:pre-wrap;
  overflow-wrap:anywhere;
}
.setup-details {
  margin:20px 0;
  border:1px solid var(--line);
  padding:20px;
}
.setup-details summary {
  color:var(--accent);
  cursor:pointer;
  font-size:15px;
  line-height:1.6;
}
.setup-details li {
  margin:10px 0;
}