:root {
  --ink: #101412;
  --ink-soft: #26302c;
  --paper: #f4f7f2;
  --paper-strong: #ffffff;
  --mist: #e4ece5;
  --line: rgba(16, 20, 18, 0.14);
  --line-dark: rgba(244, 247, 242, 0.18);
  --muted: #66736c;
  --green: #1f7a5c;
  --blue: #315fd1;
  --clay: #c9603c;
  --yellow: #f1c84b;
  --mono: "SF Mono", "Cascadia Code", "Liberation Mono", Menlo, monospace;
  --display: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
  --body: "Avenir Next", "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
  overflow-x: clip;
}

a {
  color: inherit;
}

.site-nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 20;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  min-height: 72px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(244, 247, 242, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand,
.site-nav nav,
.nav-cta,
.button {
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
}

.brand-mark {
  font-family: var(--display);
  font-size: 28px;
  font-weight: 800;
  line-height: 1;
}

.brand-note,
.eyebrow,
.section-label,
.hero-facts dt,
.feature-grid span,
.layers span {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
}

.brand-note {
  color: var(--green);
}

.site-nav nav {
  display: flex;
  justify-content: center;
  gap: clamp(16px, 3vw, 34px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.site-nav nav a {
  text-decoration: none;
}

.site-nav nav a:hover,
.footer a:hover {
  color: var(--green);
}

.nav-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 800;
}

.nav-cta {
  min-height: 38px;
  padding: 0 15px;
  color: var(--paper);
  background: var(--ink);
}

.hero {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(360px, 0.78fr);
  grid-template-areas:
    "copy visual"
    "facts facts";
  gap: clamp(26px, 4vw, 54px);
  align-items: center;
  min-height: 84svh;
  padding: 112px clamp(20px, 5vw, 72px) 28px;
  background:
    linear-gradient(90deg, rgba(16, 20, 18, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(16, 20, 18, 0.055) 1px, transparent 1px),
    radial-gradient(circle at 82% 12%, rgba(49, 95, 209, 0.14), transparent 33%),
    var(--paper);
  background-size: 56px 56px, 56px 56px, auto, auto;
  overflow: hidden;
}

.hero-copy {
  grid-area: copy;
  max-width: 770px;
}

.eyebrow,
.section-label {
  margin: 0 0 18px;
  color: var(--clay);
}

.hero h1,
.section h2 {
  margin: 0;
  font-family: var(--display);
  font-weight: 760;
  line-height: 1.02;
  letter-spacing: 0;
}

.hero h1 {
  max-width: 760px;
  font-size: clamp(40px, 4.8vw, 66px);
}

.lede {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-size: clamp(18px, 1.7vw, 23px);
  line-height: 1.35;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  min-height: 48px;
  padding: 13px 18px;
  border: 1px solid var(--ink);
  transition: transform 170ms ease, background 170ms ease, color 170ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  color: var(--paper);
  background: var(--ink);
}

.button-secondary {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.36);
}

.engine-visual {
  position: relative;
  grid-area: visual;
  min-height: clamp(340px, 40vw, 500px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.7), rgba(228, 236, 229, 0.74)),
    var(--mist);
  overflow: hidden;
  box-shadow: 0 24px 80px rgba(16, 20, 18, 0.12);
}

#engine-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.visual-head {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 12px;
}

.visual-head strong {
  color: var(--green);
}

.engine-stack {
  position: absolute;
  left: 20px;
  right: 20px;
  bottom: 20px;
  z-index: 2;
  display: grid;
  gap: 8px;
}

.engine-stack span {
  display: block;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.76);
  font-family: var(--mono);
  font-size: 12px;
}

.hero-facts {
  grid-area: facts;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: clamp(12px, 3vw, 24px) 0 0;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.hero-facts div {
  min-width: 0;
  padding: 18px 20px;
  background: rgba(255, 255, 255, 0.55);
}

.hero-facts dt {
  margin: 0 0 6px;
  color: var(--muted);
}

.hero-facts dd {
  margin: 0;
  font-size: clamp(17px, 1.8vw, 22px);
  font-weight: 800;
}

.signal-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--paper-strong);
}

.signal-strip div {
  min-height: 132px;
  padding: 26px clamp(20px, 3vw, 38px);
  border-right: 1px solid var(--line);
}

.signal-strip div:last-child {
  border-right: 0;
}

.signal-strip strong,
.signal-strip span {
  display: block;
}

.signal-strip strong {
  font-family: var(--display);
  font-size: clamp(28px, 3.5vw, 48px);
  line-height: 1;
}

.signal-strip span {
  max-width: 340px;
  margin-top: 14px;
  color: var(--muted);
  font-weight: 700;
}

.section {
  padding: clamp(72px, 10vw, 132px) clamp(20px, 5vw, 72px);
}

.section h2 {
  max-width: 940px;
  font-size: clamp(38px, 6.5vw, 84px);
}

.section p {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(17px, 1.75vw, 21px);
}

.split,
.architecture,
.status-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(360px, 0.72fr);
  gap: clamp(32px, 6vw, 90px);
  align-items: start;
}

.intro {
  background: var(--paper);
}

.copy-block p:first-child {
  margin-top: 0;
}

.shape {
  color: var(--paper);
  background: var(--ink);
}

.shape p {
  color: rgba(244, 247, 242, 0.7);
}

.layers {
  display: grid;
  gap: 1px;
  border: 1px solid var(--line-dark);
  background: var(--line-dark);
}

.layers div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 20px;
  background: #151b18;
}

.layers span {
  color: rgba(244, 247, 242, 0.5);
}

.layers strong {
  text-align: right;
  font-size: 18px;
}

.features {
  background: var(--mist);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.feature-grid article {
  min-height: 236px;
  padding: clamp(22px, 3vw, 34px);
  background: var(--paper);
}

.feature-grid span {
  color: var(--blue);
}

.feature-grid h3 {
  margin: 34px 0 0;
  font-family: var(--display);
  font-size: clamp(27px, 3vw, 38px);
  line-height: 1.05;
}

.feature-grid p {
  margin-bottom: 0;
  font-size: 16px;
}

.benchmarks {
  background: var(--paper-strong);
}

.bench-panel {
  border: 1px solid var(--line);
  background: var(--paper);
  overflow-x: auto;
}

table {
  width: 100%;
  min-width: 430px;
  border-collapse: collapse;
}

th,
td {
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

tr:last-child td {
  border-bottom: 0;
}

th {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  text-transform: uppercase;
}

td:last-child {
  color: var(--green);
  font-family: var(--display);
  font-size: 32px;
  font-weight: 800;
  line-height: 1;
}

.code-section {
  display: grid;
  grid-template-columns: minmax(0, 0.52fr) minmax(420px, 0.9fr);
  gap: clamp(30px, 6vw, 86px);
  color: var(--paper);
  background:
    linear-gradient(90deg, rgba(244, 247, 242, 0.055) 1px, transparent 1px),
    linear-gradient(0deg, rgba(244, 247, 242, 0.055) 1px, transparent 1px),
    var(--ink);
  background-size: 46px 46px;
}

.code-section h2 {
  color: var(--paper);
}

pre {
  margin: 0;
  white-space: pre-wrap;
}

code {
  font-family: var(--mono);
}

.code-section pre {
  overflow-x: auto;
  border: 1px solid var(--line-dark);
  border-left: 6px solid var(--green);
  border-radius: 8px;
  background: #151b18;
  color: #ecfff4;
  padding: clamp(18px, 3vw, 32px);
  font-size: clamp(12px, 1.18vw, 14px);
  line-height: 1.7;
}

.status {
  background: var(--paper);
}

.roadmap {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  border: 1px solid var(--line);
  list-style: none;
  background: var(--line);
}

.roadmap li {
  padding: 22px;
  background: var(--paper-strong);
  color: var(--muted);
  font-size: 17px;
}

.roadmap span {
  display: block;
  margin-bottom: 7px;
  color: var(--ink);
  font-family: var(--display);
  font-size: 30px;
  font-weight: 800;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 28px clamp(20px, 5vw, 72px);
  color: var(--paper);
  background: var(--ink);
  border-top: 1px solid var(--line-dark);
}

.footer div {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px;
}

.footer strong {
  font-family: var(--display);
  font-size: 30px;
}

.footer span,
.footer a {
  color: rgba(244, 247, 242, 0.68);
  font-size: 14px;
}

@media (max-width: 980px) {
  .site-nav {
    position: absolute;
  }

  .site-nav nav {
    justify-content: flex-end;
    gap: 14px;
    font-size: 13px;
  }

  .site-nav nav a:nth-child(2),
  .site-nav nav a:nth-child(3) {
    display: none;
  }

  .hero,
  .split,
  .architecture,
  .status-grid,
  .code-section {
    grid-template-columns: 1fr;
  }

  .hero {
    grid-template-areas:
      "copy"
      "visual"
      "facts";
    min-height: auto;
  }

  .engine-visual {
    min-height: 360px;
  }

  .signal-strip,
  .feature-grid {
    grid-template-columns: 1fr;
  }

  .signal-strip div {
    min-height: auto;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .feature-grid article {
    min-height: auto;
  }
}

@media (max-width: 620px) {
  .site-nav {
    grid-template-columns: 1fr auto;
    min-height: 64px;
    padding: 13px 16px;
  }

  .site-nav nav,
  .brand-note {
    display: none;
  }

  .hero {
    padding: 76px 16px 24px;
  }

  .hero h1 {
    font-size: clamp(36px, 11vw, 46px);
  }

  .lede {
    font-size: 18px;
  }

  .hero-actions,
  .hero-facts {
    grid-template-columns: 1fr;
  }

  .button,
  .nav-cta {
    width: 100%;
  }

  .nav-cta {
    width: auto;
  }

  .engine-visual {
    min-height: 188px;
  }

  .hero-actions {
    margin-top: 24px;
  }

  .hero-facts {
    display: none;
  }

  .engine-stack {
    display: none;
  }

  .section {
    padding: 64px 16px;
  }

  .section h2 {
    font-size: clamp(36px, 12vw, 50px);
  }

  .layers div {
    display: block;
  }

  .layers strong {
    display: block;
    margin-top: 6px;
    text-align: left;
  }

  .footer {
    display: block;
  }

  .footer a {
    display: inline-block;
    margin-top: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .button {
    transition: none;
  }
}