@import url("https://fonts.googleapis.com/css2?family=Azeret+Mono:wght@400;600;700&family=Fraunces:opsz,wght@9..144,650;9..144,800&display=swap");

:root {
  --ink: #061014;
  --panel: rgba(11, 25, 30, 0.76);
  --panel-strong: #0e1d22;
  --paper: #f4efe6;
  --muted: #9fb8b7;
  --teal: #66b9b0;
  --rust: #f0642b;
  --ember: #ffb15f;
  --line: rgba(244, 239, 230, 0.16);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

* {
  box-sizing: border-box;
}

html {
  background: var(--ink);
  color: var(--paper);
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: "Azeret Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
  background:
    radial-gradient(circle at 18% 18%, rgba(240, 100, 43, 0.3), transparent 28rem),
    radial-gradient(circle at 82% 6%, rgba(102, 185, 176, 0.35), transparent 26rem),
    linear-gradient(135deg, #061014 0%, #0c1d22 50%, #071014 100%);
  overflow-x: hidden;
}

.grain {
  pointer-events: none;
  position: fixed;
  inset: 0;
  opacity: 0.1;
  mix-blend-mode: screen;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 47px 47px;
  mask-image: radial-gradient(circle at center, black, transparent 78%);
}

a {
  color: inherit;
  text-decoration: none;
}

.nav,
main,
footer {
  width: min(1180px, calc(100vw - 40px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 0 34px rgba(102, 185, 176, 0.3);
}

nav {
  display: flex;
  gap: 6px;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(6, 16, 20, 0.55);
  backdrop-filter: blur(18px);
}

nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
}

nav a:hover {
  color: var(--paper);
  background: rgba(244, 239, 230, 0.08);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 44px;
  align-items: center;
  padding: 76px 0 90px;
}

.eyebrow {
  color: var(--teal);
  margin: 0 0 16px;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  font-weight: 700;
}

.mission,
.section-number,
.exhibit-label {
  margin: 0 0 14px;
  color: var(--rust);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 700;
}

.mission a {
  color: inherit;
  border-bottom: 1px solid currentColor;
}

.credit {
  max-width: 720px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.credit a {
  color: var(--teal);
  border-bottom: 1px solid rgba(102, 185, 176, 0.45);
}

h1,
h2,
h3 {
  font-family: "Fraunces", Georgia, serif;
  line-height: 0.92;
  letter-spacing: -0.06em;
}

h1 {
  margin: 0;
  max-width: 820px;
  font-size: clamp(64px, 9vw, 132px);
}

h2 {
  margin: 0;
  font-size: clamp(42px, 6vw, 82px);
}

h3 {
  margin: 18px 0 12px;
  font-size: 34px;
}

.lede {
  max-width: 720px;
  margin: 28px 0 0;
  color: #c3d6d3;
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 20px;
  border-radius: 14px;
  font-weight: 700;
}

.primary {
  color: #210b04;
  background: linear-gradient(135deg, var(--rust), var(--ember));
  box-shadow: 0 18px 42px rgba(240, 100, 43, 0.28);
}

.secondary {
  border: 1px solid var(--line);
  background: rgba(244, 239, 230, 0.06);
}

.terminal-card,
.install pre {
  position: relative;
  border: 1px solid rgba(102, 185, 176, 0.35);
  border-radius: 26px;
  background:
    linear-gradient(180deg, rgba(14, 29, 34, 0.96), rgba(7, 16, 20, 0.96)),
    var(--panel-strong);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.terminal-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  z-index: -1;
  border-radius: 28px;
  background: linear-gradient(135deg, var(--teal), transparent 36%, var(--rust));
  opacity: 0.55;
}

.terminal-top {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
}

.terminal-top span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--rust);
}

.terminal-top span:nth-child(2) {
  background: var(--ember);
}

.terminal-top span:nth-child(3) {
  background: var(--teal);
  margin-right: 8px;
}

pre {
  margin: 0;
  overflow-x: auto;
  white-space: pre-wrap;
}

code {
  display: block;
  padding: 24px;
  color: #d9efeb;
  font-family: "Azeret Mono", ui-monospace, monospace;
  font-size: 14px;
  line-height: 1.7;
}

p code {
  display: inline;
  padding: 0.1em 0.35em;
  border-radius: 6px;
  background: rgba(244, 239, 230, 0.08);
  font-size: 0.9em;
  line-height: inherit;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-bottom: 62px;
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--line);
}

.stats-strip div {
  padding: 24px;
  color: var(--muted);
  background: rgba(7, 16, 20, 0.82);
}

.stats-strip span {
  display: block;
  margin-bottom: 6px;
  color: var(--paper);
  font-family: "Fraunces", Georgia, serif;
  font-size: 46px;
  line-height: 0.9;
}

.chapter {
  padding: 76px 0;
  border-top: 1px solid var(--line);
}

.split,
.install {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
  padding: 70px 0;
  border-top: 1px solid var(--line);
}

.split > p,
.install p {
  margin: 0;
  color: #c3d6d3;
  font-size: 21px;
  line-height: 1.6;
}

.chapter-head {
  max-width: 860px;
  margin-bottom: 34px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding: 34px 0 76px;
}

.cards article {
  min-height: 270px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--panel);
  backdrop-filter: blur(18px);
}

.card-index {
  color: var(--rust);
  font-weight: 700;
}

.cards p {
  color: var(--muted);
  line-height: 1.55;
}

.proof-cards {
  padding-top: 0;
}

.usecase {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 46px;
  align-items: start;
  padding-top: 38px;
}

.usecase-copy {
  display: grid;
  gap: 16px;
}

.usecase-copy p {
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 22px;
  color: #c3d6d3;
  background:
    radial-gradient(circle at top right, rgba(240, 100, 43, 0.12), transparent 16rem),
    rgba(244, 239, 230, 0.055);
  font-size: 19px;
  line-height: 1.6;
}

.evidence {
  position: relative;
}

.exhibit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.exhibit {
  display: flex;
  min-height: 360px;
  flex-direction: column;
  padding: 24px;
  border: 1px solid rgba(102, 185, 176, 0.28);
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(244, 239, 230, 0.05), transparent),
    rgba(11, 25, 30, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.exhibit h3 {
  margin-top: 4px;
}

.exhibit p:not(.exhibit-label) {
  color: var(--muted);
  line-height: 1.55;
}

.exhibit pre {
  margin-top: auto;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: #071014;
}

.exhibit code {
  padding: 16px;
  font-size: 12px;
}

.runbook {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 46px;
  align-items: start;
}

.runbook p {
  margin: 0;
  color: #c3d6d3;
  font-size: 19px;
  line-height: 1.6;
}

.run-steps {
  display: grid;
  gap: 18px;
}

.run-steps ol {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: run-step;
}

.run-steps li {
  counter-increment: run-step;
  position: relative;
  padding: 18px 18px 18px 58px;
  border: 1px solid var(--line);
  border-radius: 18px;
  color: #c3d6d3;
  background: rgba(244, 239, 230, 0.055);
}

.run-steps li::before {
  content: counter(run-step, decimal-leading-zero);
  position: absolute;
  top: 18px;
  left: 18px;
  color: var(--rust);
  font-weight: 700;
}

.run-steps strong {
  color: var(--paper);
}

.run-steps pre {
  border: 1px solid rgba(102, 185, 176, 0.35);
  border-radius: 26px;
  background: var(--panel-strong);
}

.contracts {
  padding-bottom: 42px;
}

.contract-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 28px;
}

.contract-board article {
  min-height: 250px;
  padding: 24px;
  border-right: 1px solid var(--line);
  background:
    radial-gradient(circle at top right, rgba(102, 185, 176, 0.12), transparent 13rem),
    rgba(7, 16, 20, 0.76);
}

.contract-board article:last-child {
  border-right: 0;
}

.contract-board span {
  color: var(--rust);
  font-weight: 700;
}

.contract-board h3 {
  font-size: 30px;
}

.contract-board p {
  color: var(--muted);
  line-height: 1.55;
}

.caveats {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 46px;
  align-items: start;
}

.caveat-list {
  display: grid;
  gap: 12px;
}

.caveat-list p {
  margin: 0;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 20px;
  color: #c3d6d3;
  background: rgba(244, 239, 230, 0.055);
  line-height: 1.55;
}

.caveat-list strong {
  color: var(--paper);
}

.flow {
  padding: 74px;
  border: 1px solid rgba(240, 100, 43, 0.35);
  border-radius: 34px;
  background:
    radial-gradient(circle at 100% 0%, rgba(240, 100, 43, 0.18), transparent 22rem),
    rgba(9, 22, 27, 0.8);
  box-shadow: var(--shadow);
}

.flow ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  padding: 0;
  margin: 34px 0 0;
  list-style: none;
}

.flow li {
  min-height: 170px;
  padding: 20px;
  border-radius: 22px;
  color: #c3d6d3;
  background: rgba(244, 239, 230, 0.07);
  border: 1px solid var(--line);
}

.flow strong {
  display: block;
  margin-bottom: 10px;
  color: var(--paper);
}

.install {
  margin-top: 76px;
}

footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  align-items: center;
  justify-content: center;
  padding: 34px 0 48px;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

footer a {
  color: var(--teal);
}

@media (max-width: 900px) {
  .nav,
  .hero,
  .split,
  .install,
  .runbook,
  .caveats,
  .usecase {
    display: block;
  }

  .usecase-copy {
    margin-top: 24px;
  }

  nav {
    flex-wrap: wrap;
    width: fit-content;
    max-width: 100%;
    margin-top: 16px;
    gap: 0;
    padding: 4px;
    border-radius: 20px;
  }

  nav a {
    padding: 8px 7px;
    font-size: 12px;
  }

  .hero {
    padding-top: 44px;
  }

  .terminal-card,
  .install pre {
    margin-top: 32px;
  }

  .cards,
  .flow ol,
  .stats-strip,
  .exhibit-grid,
  .contract-board {
    grid-template-columns: 1fr;
  }

  .contract-board article {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .contract-board article:last-child {
    border-bottom: 0;
  }

  .flow {
    padding: 34px 22px;
  }
}