:root {
  --bg: #09090b;
  --bg-card: #111113;
  --fg: #fafafa;
  --fg-muted: #a1a1aa;
  --fg-dim: #85858f;
  --border: #ffffff14;
  --border-strong: #ffffff24;
  --accent: #88c0d0;
  --accent-dim: color-mix(in srgb, var(--accent) 15%, transparent);
  --ok: oklch(72% .16 150);
  --warn: oklch(76% .15 75);
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, monospace;
  --radius: 12px;
  --ease: cubic-bezier(.2, .7, .2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { color-scheme: dark; scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  line-height: 1.5;
  overflow-x: hidden;
}
body::after {
  content: "";
  pointer-events: none;
  position: fixed;
  inset: 0;
  z-index: 9999;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}
a { color: inherit; text-decoration: none; }
button { cursor: pointer; color: inherit; background: none; border: 0; font: inherit; }
img, svg { max-width: 100%; display: block; }
code { font-family: var(--font-mono); }
code, .eyebrow, .harness-tag, .task-meta, .task-checks, .merge-button, .term-body, .pitch-meta, .install-line { font-variant-ligatures: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.container { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.display { font-weight: 500; letter-spacing: -.035em; line-height: 1.05; text-wrap: balance; }
.tile {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(#ffffff04, #ffffff00);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: transform .18s, background .18s, border-color .18s, color .18s;
}
.btn-primary { background: var(--fg); color: #09090b; font-weight: 600; }
.btn-primary:hover { background: #fff; transform: translateY(-1px); }
.btn-primary:active { transform: none; }
.btn-ghost { color: var(--fg-muted); border: 1px solid var(--border); }
.btn-ghost:hover { color: var(--fg); border-color: var(--border-strong); background: #ffffff05; }
.btn-lg { padding: 14px 22px; border-radius: 10px; font-size: 15px; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.is-scrolled { border-bottom-color: var(--border); }
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 12px 32px;
}
.nav-brand { display: inline-flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; letter-spacing: -.025em; }
.nav-brand svg { color: var(--accent); }
.nav-right { display: inline-flex; align-items: center; gap: 8px; }
.nav-link { padding: 0 10px; font-size: 13px; color: var(--fg-muted); transition: color .18s; }
.nav-link:hover { color: var(--fg); }
.nav-stars {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 36px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #ffffff05;
  font-size: 13px;
  color: var(--fg-muted);
  white-space: nowrap;
  transition: color .18s, border-color .18s, background .18s;
}
.nav-stars:hover { color: var(--fg); border-color: var(--border-strong); background: #ffffff0a; }
.nav-stars svg { color: var(--warn); }

/* Sections */
section { position: relative; padding: 96px 0; border-top: 1px solid var(--border); }
.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head .eyebrow { display: block; margin-bottom: 14px; }
.section-head h2 { margin-bottom: 18px; font-size: clamp(32px, 4vw, 48px); font-weight: 500; letter-spacing: -.035em; line-height: 1.05; }
.section-head p { max-width: 620px; font-size: 18px; color: var(--fg-muted); }
.checklist { display: flex; flex-direction: column; gap: 12px; margin-top: 24px; list-style: none; }
.checklist li { display: flex; align-items: center; gap: 10px; font-size: 15px; color: var(--fg-muted); }
.checklist svg { flex-shrink: 0; color: var(--ok); }
.checklist code { font-size: 13px; color: var(--fg); }

/* Hero */
.hero { padding: 72px 0 60px; border-top: 0; overflow: hidden; }
.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(90deg, #ffffff09 1px, transparent 1px), linear-gradient(#ffffff09 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(80% 60% at 50% 40%, #000 40%, transparent 100%);
}
.hero-inner { position: relative; text-align: center; }
.hero-title { max-width: 20ch; margin: 48px auto 22px; font-size: clamp(38px, 5.6vw, 76px); text-wrap: balance; }
.hero-title span { display: inline-block; }
.hero-sub { max-width: 640px; margin: 0 auto 36px; font-size: clamp(16px, 1.4vw, 19px); line-height: 1.55; color: var(--fg-muted); text-wrap: pretty; }
.hero-actions { display: flex; flex-direction: column; align-items: center; gap: 16px; margin-bottom: 56px; }
.hero-source-link { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; font-weight: 500; color: var(--fg-muted); transition: color .18s; }
.hero-source-link:hover { color: var(--fg); }
.hero-source-link .arrow { opacity: .6; transition: transform .18s, opacity .18s; }
.hero-source-link:hover .arrow { opacity: 1; transform: translate(2px, -2px); }
.hero-mobile-line { display: inline-flex; flex-wrap: wrap; justify-content: center; gap: 6px; font-size: 13px; color: var(--fg-dim); }
.hero-mobile-line a { color: var(--fg-muted); text-decoration: underline; text-decoration-color: #a1a1aa66; text-underline-offset: 3px; transition: color .18s, text-decoration-color .18s; }
.hero-mobile-line a:hover { color: var(--fg); text-decoration-color: var(--fg); }

.hero-float { position: absolute; inset: 0; z-index: 1; pointer-events: none; --px: 0px; --py: 0px; }
.hero-float-mark {
  position: absolute;
  left: calc(50% + var(--x));
  top: var(--y);
  width: var(--s);
  height: var(--s);
  margin-left: calc(var(--s) / -2);
  translate: calc(var(--px) * var(--depth)) calc(var(--py) * var(--depth));
  transition: translate .7s var(--ease);
}
.hero-float-card {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: 25%;
  background: radial-gradient(circle at 30% 25%, var(--tint, #ffffff14), #141418eb 65%);
  box-shadow: 0 20px 48px -16px #000000a6, inset 0 2px #ffffff0a;
  color: var(--fg);
  animation: mark-in .9s var(--ease) var(--d) both, mark-drift var(--dur) ease-in-out calc(var(--d) + .9s) infinite;
}
.hero-float-card img, .hero-float-card svg { width: 50%; height: 50%; object-fit: contain; }
@keyframes mark-in {
  from { opacity: 0; transform: translate(var(--fx), var(--fy)) rotate(calc(var(--rot) + 24deg)) scale(.6); }
  to { opacity: 1; transform: rotate(var(--rot)); }
}
@keyframes mark-drift {
  0%, 100% { transform: rotate(var(--rot)); }
  50% { transform: translate(var(--dx), var(--dy)) rotate(calc(var(--rot) + var(--wob))); }
}
.hf-grok { --x: max(-300px, -19vw); --y: 20px; --s: 64px; --rot: 6deg; --depth: .6; --d: .62s; --dur: 8.5s; --dx: 2px; --dy: -8px; --wob: 3deg; --fx: -40px; --fy: -80px; }
.hf-chain { --x: min(300px, 19vw); --y: 20px; --s: 64px; --rot: -5deg; --depth: .6; --d: .58s; --dur: 9.8s; --dx: -2px; --dy: -9px; --wob: -3deg; --fx: 40px; --fy: -80px; --tint: #88c0d02e; }
.hf-claude { --x: max(-560px, -38vw); --y: 128px; --s: 96px; --rot: -8deg; --depth: 1.2; --d: .38s; --dur: 10.5s; --dx: 4px; --dy: -12px; --wob: -2deg; --fx: -160px; --fy: -40px; --tint: #d9775738; }
.hf-codex { --x: min(560px, 38vw); --y: 128px; --s: 96px; --rot: 7deg; --depth: 1.2; --d: .46s; --dur: 9.2s; --dx: -4px; --dy: -10px; --wob: 2deg; --fx: 160px; --fy: -40px; }
.hf-human { --x: max(-440px, -30vw); --y: 440px; --s: 80px; --rot: 4deg; --depth: .9; --d: .54s; --dur: 11.5s; --dx: 3px; --dy: -9px; --wob: -3deg; --fx: -120px; --fy: 80px; }
.hf-cursor { --x: min(440px, 30vw); --y: 440px; --s: 80px; --rot: -5deg; --depth: .9; --d: .7s; --dur: 7.8s; --dx: -3px; --dy: -11px; --wob: 3deg; --fx: 120px; --fy: 80px; }

.hero-preview { max-width: 1180px; margin: 0 auto; transform: perspective(2000px) rotateX(2deg); transition: transform .6s; }
.hero-preview:hover { transform: perspective(2000px) rotateX(0); }
.hero-screenshot-frame {
  position: relative;
  overflow: hidden;
  aspect-ratio: 2880 / 1512;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #0a0a0c;
  box-shadow: 0 28px 64px -28px #000000bf, 0 0 120px -40px var(--accent-dim);
}
.hero-screenshot-frame img { width: 100%; height: 100%; object-fit: cover; object-position: top center; }

/* Harnesses */
.harness-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.harness {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 22px 20px;
  border-right: 1px solid var(--border);
  background: linear-gradient(#ffffff04, transparent);
  transition: background .2s;
}
.harness:last-child { border-right: 0; }
.harness:hover { background: #ffffff06; }
.harness-mark { display: grid; place-items: center; flex-shrink: 0; width: 28px; height: 28px; color: var(--fg); }
.harness-mark img, .harness-mark svg { width: 22px; height: 22px; }
.harness-meta { flex: 1; min-width: 0; }
.harness-name { margin-bottom: 2px; font-size: 14px; font-weight: 500; letter-spacing: -.01em; }
.harness-tag { overflow: hidden; font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); text-overflow: ellipsis; white-space: nowrap; }
.harness-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: var(--fg-muted);
}
.harness-footer span { display: inline-flex; align-items: center; gap: 8px; }
.harness-footer svg { color: var(--ok); }

/* Gate */
.gate-inner { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 64px; }
.gate-visual { display: flex; flex-direction: column; gap: 20px; }
.task-card { padding: 20px; }
.task-head { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.task-head svg { color: var(--ok); }
.task-title { flex: 1; font-size: 15px; font-weight: 500; }
.task-status {
  padding: 2px 8px;
  border: 1px solid var(--ok);
  border-radius: 999px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ok);
}
.task-meta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 14px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); }
.task-meta span { display: inline-flex; align-items: center; gap: 5px; }
.task-checks { overflow: hidden; margin-bottom: 16px; border: 1px solid var(--border); border-radius: 8px; }
.task-checks > div {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-muted);
}
.task-checks > div:first-child { border-top: 0; }
.task-checks .pass { color: var(--ok); }
.task-foot { display: flex; justify-content: flex-end; gap: 8px; }
.task-foot .btn { padding: 6px 12px; font-size: 12px; pointer-events: none; }
.trail { display: flex; flex-direction: column; align-items: center; margin: -4px 0; }
.trail-dot { width: 8px; height: 8px; border-radius: 999px; background: var(--border-strong); }
.trail-line { width: 1px; height: 28px; background: linear-gradient(var(--border-strong), var(--accent)); }
.merge-shell { display: flex; justify-content: center; }
.merge-button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: 10px;
  background: var(--fg);
  color: #09090b;
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 600;
  box-shadow: 0 8px 24px -8px #ffffff33;
}
.merge-kbd { padding: 2px 6px; border-radius: 4px; background: #0000001a; font-size: 10px; }

/* Open source */
.open-head { margin: 0 auto 56px; text-align: center; }
.open-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 20px; }
.term-head { display: flex; align-items: center; gap: 6px; padding: 10px 14px; border-bottom: 1px solid var(--border); background: #ffffff05; }
.term-head i { display: block; width: 10px; height: 10px; border-radius: 999px; background: #2a2a30; }
.term-title { flex: 1; margin-left: 10px; font-family: var(--font-mono); font-size: 11px; text-align: center; color: var(--fg-dim); }
.term-body { padding: 20px 22px; font-family: var(--font-mono); font-size: 13px; line-height: 1.7; }
.term-body > div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.term-body .prompt { margin-right: 8px; color: var(--accent); }
.term-body .dim { color: var(--fg-dim); }
.term-body .ok { color: var(--ok); }
.term-body .cursor { display: flex; align-items: center; }
.caret { display: inline-block; width: 7px; height: 14px; margin-left: 4px; background: var(--fg); animation: blink 1s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.open-pitch {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 32px;
  padding: 32px;
  background: radial-gradient(110% 75% at 100% 0%, var(--accent-dim), transparent 60%), linear-gradient(#ffffff05, transparent);
}
.pitch-list { display: flex; flex-direction: column; gap: 16px; list-style: none; }
.pitch-list li { display: flex; align-items: flex-start; gap: 12px; font-size: 15px; line-height: 1.5; color: var(--fg-muted); }
.pitch-list strong { font-weight: 600; color: var(--fg); }
.pitch-mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 22px;
  height: 22px;
  margin-top: 1px;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  border-radius: 7px;
  background: var(--accent-dim);
  color: var(--accent);
}
.pitch-footer { display: flex; flex-direction: column; gap: 18px; }
.pitch-meta { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-dim); }
.pitch-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.source-link { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 500; color: var(--fg-muted); transition: color .18s; }
.source-link:hover { color: var(--fg); }

/* CTA */
.sec-cta { padding: 120px 0; overflow: hidden; text-align: center; }
.sec-cta::before {
  content: "";
  position: absolute;
  inset: auto 0 -50%;
  height: 60%;
  pointer-events: none;
  opacity: .6;
  background: radial-gradient(ellipse at center, var(--accent-dim) 0%, transparent 60%);
}
.cta-inner { position: relative; }
.cta-title { font-size: clamp(40px, 6vw, 72px); }
.cta-sub { max-width: 560px; margin: 20px auto 36px; font-size: 18px; line-height: 1.55; color: var(--fg-muted); text-wrap: pretty; }
.cta-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 24px; }
.install-line {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  max-width: 100%;
  padding: 8px 8px 8px 16px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #ffffff05;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-muted);
}
.install-line code { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.install-line code::before { content: "$ "; color: var(--accent); }
.copy-btn { flex: none; padding: 4px 10px; border: 1px solid var(--border); border-radius: 6px; font-size: 11px; color: var(--fg-muted); transition: color .18s, border-color .18s; }
.copy-btn:hover { color: var(--fg); border-color: var(--border-strong); }

/* Footer */
.footer { margin-top: auto; padding: 40px 0 32px; border-top: 1px solid var(--border); }
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 32px;
}
.footer-brand { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--fg-dim); }
.footer-brand svg { color: var(--accent); flex-shrink: 0; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 20px; }
.footer-links a { font-size: 13px; color: var(--fg-dim); transition: color .2s; }
.footer-links a:hover { color: var(--fg); }

/* Changelog and other prose pages */
.prose { max-width: 760px; padding: 72px 32px 96px; }
.prose h1 { margin-bottom: 32px; font-size: clamp(36px, 5vw, 56px); font-weight: 500; letter-spacing: -.035em; line-height: 1.05; }
.prose h2 { margin: 48px 0 12px; padding-top: 32px; border-top: 1px solid var(--border); font-size: 24px; font-weight: 500; letter-spacing: -.02em; }
.prose h3 { margin: 24px 0 8px; font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--fg-dim); }
.prose p, .prose li { color: var(--fg-muted); }
.prose ul { display: flex; flex-direction: column; gap: 6px; padding-left: 20px; }
.prose code { padding: .1em .35em; border-radius: 4px; background: #ffffff0d; font-size: .88em; color: var(--fg); }

[data-rise] { animation: rise .7s var(--ease) var(--d, 0s) both; }
@keyframes rise { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  [data-rise], .hero-float-card, .caret { animation: none; }
  .hero-float-card { transform: rotate(var(--rot)); }
  .hero-float-mark { transition: none; translate: none; }
}

@media (width <= 1180px) {
  .hf-claude, .hf-codex { --s: 80px; }
  .hf-human, .hf-cursor { --s: 68px; --y: 420px; }
}

@media (width <= 960px) {
  .hero-preview { width: min(860px, 100vw - 24px); margin-left: 50%; transform: translate(-50%) perspective(1600px) rotateX(1.5deg); }
  .hero-preview:hover { transform: translate(-50%) perspective(1600px) rotateX(0); }
  .harness-grid { grid-template-columns: 1fr 1fr; }
  .harness { border-right: 0; border-bottom: 1px solid var(--border); }
  .harness:nth-child(odd) { border-right: 1px solid var(--border); }
  .harness:nth-last-child(-n + 2) { border-bottom: 0; }
  .gate-inner { grid-template-columns: 1fr; gap: 40px; }
  .open-grid { grid-template-columns: 1fr; }
}

@media (width <= 820px) {
  section { padding: 64px 0; }
  .sec-cta { padding: 96px 0; }
  .container, .nav-inner, .footer-inner { padding-left: 20px; padding-right: 20px; }
  .hero { padding-top: 132px; }
  .hero-title { margin-top: 14px; font-size: clamp(40px, 11vw, 56px); }
  .hero-actions { margin-bottom: 112px; }
  .hf-claude { --x: -37vw; --y: 44px; --s: 64px; --rot: -10deg; }
  .hf-grok { --x: -12vw; --y: 52px; --s: 56px; --rot: -4deg; }
  .hf-chain { --x: 12vw; --y: 52px; --s: 56px; --rot: 5deg; }
  .hf-codex { --x: 37vw; --y: 44px; --s: 64px; --rot: 8deg; }
  .hf-human { --x: -30vw; --y: 670px; --s: 56px; --rot: -6deg; }
  .hf-cursor { --x: 30vw; --y: 670px; --s: 56px; --rot: 7deg; }
  .hero-preview { display: none; }
  .nav-link.hide-sm { display: none; }
  .footer-inner { flex-direction: column; align-items: flex-start; gap: 28px; }
  .footer-links { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px 20px; width: 100%; }
}

@media (width <= 420px) {
  .nav-inner { gap: 12px; }
  .nav-stars { height: 34px; padding: 0 12px; font-size: 12px; }
  .harness-grid { grid-template-columns: 1fr; }
  .harness, .harness:nth-child(odd) { border-right: 0; }
  .harness:nth-last-child(2) { border-bottom: 1px solid var(--border); }
}