@font-face {
  font-family: "Selecta";
  src: url("assets/selecta-regular.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Selecta";
  src: url("assets/selecta-bold.woff2") format("woff2");
  font-style: normal;
  font-weight: 700;
  font-display: swap;
}

:root {
  --paper: #ffffff;
  --ink: #0a0a0a;
  --graphite: #353535;
  --grey: #777777;
  --line: #d7d7d4;
  --mist: #f3f3f0;
  --yellow: #ffdd00;
  --green: #00e14f;
  --good: #007c2c;
  --max: 1260px;
  --pad: clamp(20px, 4.5vw, 60px);
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html {
  color-scheme: light;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Selecta", "Helvetica Neue", Arial, sans-serif;
  font-feature-settings: "rlig" 1, "calt" 1;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-underline-offset: 4px; }
button, input { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 16px;
  left: 16px;
  padding: 10px 14px;
  background: var(--ink);
  color: white;
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.site-header,
main,
footer {
  width: min(100%, var(--max));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.site-header {
  min-height: 88px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  border-bottom: 1px solid var(--ink);
}

.brand { display: inline-flex; text-decoration: none; }
.brand img { display: block; width: clamp(138px, 16vw, 183px); height: auto; }

nav { display: flex; align-items: center; gap: clamp(17px, 2.6vw, 34px); font-size: 14px; }
nav a { text-decoration: none; }
nav a:hover { text-decoration: underline; }

.hero {
  min-height: 700px;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(390px, .94fr);
  align-items: center;
  gap: clamp(54px, 8vw, 110px);
  padding-block: clamp(78px, 10vw, 142px);
}

.eyebrow {
  margin: 0 0 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgb(0 225 79 / 12%);
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 30px;
  font-size: clamp(54px, 7.4vw, 98px);
  line-height: .91;
  letter-spacing: -.055em;
}

h1 span {
  background: linear-gradient(100deg, #9b8400 0%, #007e2d 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-intro {
  max-width: 680px;
  margin-bottom: 34px;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.46;
}

.hero-actions,
.closing-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}

.button {
  min-height: 49px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 13px 19px;
  border: 1px solid var(--ink);
  border-radius: 7px;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--ink); color: white; }
.button-secondary { background: white; }
.button-secondary:hover { background: var(--mist); }

.switchboard {
  position: relative;
  border: 1px solid var(--ink);
  background: white;
  box-shadow: 14px 14px 0 var(--mist);
}

.signal-spine {
  position: absolute;
  inset: 0 auto 0 0;
  width: 8px;
  padding: 6px 0;
  background: linear-gradient(180deg, var(--yellow), var(--green));
}

.signal-spine span {
  display: block;
  width: 2px;
  height: 100%;
  margin: auto;
  background: rgb(10 10 10 / 26%);
}

.switchboard-head,
.terminal-head,
.code-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
}

.switchboard-head {
  margin-left: 8px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--ink);
}

.contract-state { color: var(--grey); letter-spacing: 0; }
.contract-state.is-live { color: var(--good); }
.contract-state.is-error { color: #9b2c1f; }

.protocol-channel {
  margin-left: 8px;
  padding: 27px 20px 25px;
  border-bottom: 1px solid var(--line);
}

.protocol-channel > div {
  display: flex;
  align-items: center;
  gap: 13px;
  margin-bottom: 12px;
}

.protocol-channel strong { font-size: 24px; letter-spacing: -.02em; }
.channel-code { font-family: var(--mono); color: var(--grey); font-size: 11px; }
.protocol-channel p { margin-bottom: 15px; color: var(--graphite); font-size: 15px; line-height: 1.45; }
.protocol-channel code { font-family: var(--mono); font-size: 12px; overflow-wrap: anywhere; }

.switchboard-foot {
  margin-left: 8px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.switchboard-foot span {
  padding: 13px 8px;
  border-right: 1px solid var(--line);
  color: var(--grey);
  font-family: var(--mono);
  font-size: 9px;
  text-align: center;
  text-transform: uppercase;
}

.switchboard-foot span:last-child { border-right: 0; }

.capability-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.capability-band span {
  padding: 17px 12px;
  border-right: 1px solid var(--line);
  color: var(--grey);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .08em;
  text-align: center;
}

.capability-band span:last-child { border-right: 0; }

.router-section,
.contract-section,
.workflow-section,
.quickstart-section,
.closing {
  padding-block: clamp(90px, 12vw, 160px);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 430px);
  align-items: end;
  gap: 48px;
  margin-bottom: 58px;
}

.section-intro h2,
.quickstart-head h2,
.closing h2 {
  margin-bottom: 0;
  font-size: clamp(42px, 5.5vw, 72px);
  line-height: .95;
  letter-spacing: -.05em;
}

.section-intro > p,
.contract-intro > p {
  margin: 0;
  color: var(--graphite);
  font-size: 18px;
  line-height: 1.52;
}

.router-grid {
  display: grid;
  grid-template-columns: minmax(0, .98fr) minmax(340px, 1.02fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.router-options { border-right: 1px solid var(--ink); }

.router-option {
  width: 100%;
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 12px;
  align-items: center;
  padding: 22px 20px;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: white;
  color: var(--ink);
  text-align: left;
  cursor: pointer;
}

.router-option:last-child { border-bottom: 0; }
.router-option:hover { background: var(--mist); }
.router-option.is-active { background: var(--ink); color: white; }

.option-index {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border: 1px solid currentColor;
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 11px;
}

.router-option strong { display: block; margin-bottom: 3px; font-size: 18px; }
.router-option small { color: var(--grey); font-size: 14px; }
.router-option.is-active small { color: #bcbcbc; }

.route-result {
  position: relative;
  min-height: 380px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(38px, 5vw, 70px);
  overflow: hidden;
}

.route-result::after {
  content: "";
  position: absolute;
  right: -100px;
  bottom: -130px;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgb(0 225 79 / 18%), transparent 67%);
  pointer-events: none;
}

.result-label,
.result-next {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: .07em;
}

.result-label { padding-bottom: 14px; border-bottom: 1px solid var(--ink); }
.result-label span:last-child { color: var(--good); }
.route-result h3 { max-width: 520px; margin: 32px 0 17px; font-size: clamp(31px, 3.7vw, 50px); line-height: 1; letter-spacing: -.04em; }
.route-result > p { max-width: 570px; margin-bottom: 34px; color: var(--graphite); font-size: 17px; line-height: 1.52; }
.result-next { align-items: flex-end; }
.result-next > span { color: var(--grey); }
.result-next a { max-width: 310px; font-family: "Selecta", sans-serif; font-size: 16px; letter-spacing: 0; text-align: right; }

.contract-section { border-top: 1px solid var(--ink); }
.contract-intro { margin-bottom: 50px; }

.contract-metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--ink);
}

.contract-metrics > div {
  min-height: 190px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  border-right: 1px solid var(--ink);
}

.contract-metrics > div:last-child { border-right: 0; }
.contract-metrics span, .contract-metrics small { font-family: var(--mono); font-size: 10px; letter-spacing: .07em; }
.contract-metrics span { font-weight: 700; }
.contract-metrics small { color: var(--grey); }
.contract-metrics strong { font-size: clamp(40px, 5vw, 68px); letter-spacing: -.05em; }

.resource-terminal { margin-top: 28px; border: 1px solid var(--ink); background: var(--ink); color: white; }
.terminal-head { padding: 14px 17px; border-bottom: 1px solid #454545; color: #bcbcbc; }
#terminal-state { color: var(--green); letter-spacing: 0; }
.resource-list { min-height: 125px; display: flex; flex-wrap: wrap; align-content: center; gap: 10px; padding: 27px 17px; }
.resource-list span { padding: 9px 12px; border: 1px solid #5a5a5a; border-radius: 3px; font-family: var(--mono); font-size: 12px; }
.terminal-source { display: flex; gap: 30px; padding: 14px 17px; border-top: 1px solid #454545; color: #bcbcbc; font-family: var(--mono); font-size: 10px; }
.terminal-source a { color: white; overflow-wrap: anywhere; }

.workflow-section { border-top: 1px solid var(--ink); }
.workflow-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--ink); }
.workflow-list li { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 24px; padding: 29px 0; border-bottom: 1px solid var(--line); }
.workflow-list li > span { font-family: var(--mono); color: var(--grey); font-size: 12px; }
.workflow-list strong { display: block; margin-bottom: 8px; font-size: clamp(24px, 3vw, 37px); letter-spacing: -.035em; }
.workflow-list p { max-width: 760px; margin: 0; color: var(--graphite); font-size: 17px; line-height: 1.5; }

.quickstart-section { border-top: 1px solid var(--ink); }
.quickstart-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.quickstart-head h2 { max-width: 760px; }
.quickstart-tabs { display: flex; gap: 6px; padding: 5px; border: 1px solid var(--line); border-radius: 999px; }
.quickstart-tab { min-width: 66px; padding: 8px 12px; border: 0; border-radius: 999px; background: transparent; cursor: pointer; }
.quickstart-tab.is-active { background: var(--ink); color: white; }

.code-stage { border: 1px solid var(--ink); background: var(--ink); color: white; }
.code-meta { padding: 14px 17px; border-bottom: 1px solid #454545; color: #bcbcbc; }
.code-meta button { border: 0; background: transparent; color: var(--green); font-family: var(--mono); font-size: 10px; cursor: pointer; }
.code-stage pre { min-height: 210px; display: flex; align-items: center; margin: 0; padding: clamp(28px, 5vw, 58px); overflow-x: auto; }
.code-stage code { font-family: var(--mono); font-size: clamp(13px, 1.6vw, 18px); line-height: 1.65; }

.canonical-links { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); border-top: 0; }
.canonical-links a { min-height: 92px; display: flex; align-items: flex-end; justify-content: space-between; gap: 18px; padding: 16px; border-right: 1px solid var(--line); text-decoration: none; }
.canonical-links a:last-child { border-right: 0; }
.canonical-links a:hover { background: var(--mist); }

.closing { border-top: 1px solid var(--ink); }
.closing h2 { max-width: 980px; margin-bottom: 38px; }
.text-link { font-size: 18px; font-weight: 700; }

footer {
  min-height: 118px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 30px;
  border-top: 1px solid var(--ink);
  color: var(--grey);
  font-size: 13px;
}

footer img { width: 146px; height: auto; }
footer p { margin: 0; text-align: center; }

@media (max-width: 940px) {
  nav a:not(:last-child) { display: none; }
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .switchboard { max-width: 650px; }
  .section-intro { grid-template-columns: 1fr; align-items: start; gap: 24px; }
  .router-grid { grid-template-columns: 1fr; }
  .router-options { border-right: 0; border-bottom: 1px solid var(--ink); }
  .contract-metrics { grid-template-columns: repeat(2, 1fr); }
  .contract-metrics > div:nth-child(2) { border-right: 0; }
  .contract-metrics > div:nth-child(-n+2) { border-bottom: 1px solid var(--ink); }
  .canonical-links { grid-template-columns: repeat(2, 1fr); }
  .canonical-links a:nth-child(2) { border-right: 0; }
  .canonical-links a:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}

@media (max-width: 640px) {
  .site-header { min-height: 74px; }
  nav { font-size: 13px; }
  h1 { font-size: clamp(48px, 15vw, 70px); }
  .hero { padding-block: 64px 82px; gap: 54px; }
  .capability-band { grid-template-columns: repeat(2, 1fr); }
  .capability-band span:nth-child(2) { border-right: 0; }
  .capability-band span:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .switchboard-foot { grid-template-columns: 1fr; }
  .switchboard-foot span { border-right: 0; border-bottom: 1px solid var(--line); }
  .switchboard-foot span:last-child { border-bottom: 0; }
  .router-option { grid-template-columns: 40px minmax(0, 1fr); padding-inline: 13px; }
  .route-result { padding: 34px 20px; }
  .result-next { align-items: flex-start; flex-direction: column; }
  .result-next a { text-align: left; }
  .contract-metrics { grid-template-columns: 1fr; }
  .contract-metrics > div { min-height: 145px; border-right: 0; border-bottom: 1px solid var(--ink); }
  .contract-metrics > div:last-child { border-bottom: 0; }
  .terminal-source { flex-direction: column; gap: 8px; }
  .workflow-list li { grid-template-columns: 44px minmax(0, 1fr); gap: 10px; }
  .quickstart-head { align-items: flex-start; flex-direction: column; }
  .canonical-links { grid-template-columns: 1fr; }
  .canonical-links a { border-right: 0; border-bottom: 1px solid var(--line); }
  .canonical-links a:last-child { border-bottom: 0; }
  footer { grid-template-columns: 1fr; gap: 12px; padding-block: 28px; text-align: left; }
  footer p { text-align: left; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}