:root {
  --black: #000;
  --white: #fff;
  --line: rgba(255, 255, 255, 0.1);
  --muted: rgba(255, 255, 255, 0.55);
  --faint: rgba(255, 255, 255, 0.34);
  --surface: rgba(255, 255, 255, 0.025);
  --display: "Space Grotesk", Arial, sans-serif;
  --body: "Inter", Arial, sans-serif;
  --mono: "JetBrains Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--white);
  background: var(--black);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
}

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

.shell {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(16px);
}

.nav {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: space-between;
}

.wordmark {
  font: 700 24px/1 var(--display);
  letter-spacing: -0.05em;
}

.wordmark-dot {
  opacity: 0.35;
}

.inline-logo {
  height: 1.8em;
  object-fit: contain;
  margin-right: 8px;
  vertical-align: middle;
  display: inline-block;
  transform: translateY(-2px);
}

.nav-links {
  display: flex;
  gap: 36px;
  align-items: center;
  font: 500 13px/1 var(--display);
}

.nav-links a:first-child {
  color: var(--muted);
}

.nav-links a {
  transition: opacity 180ms ease;
}

.nav-links a:hover {
  opacity: 0.55;
}

.hero {
  padding: 130px 0 110px;
}

.hero-copy {
  max-width: 900px;
  text-align: center;
  margin: 0 auto;
}

.eyebrow,
.section-index {
  margin: 0;
  color: var(--faint);
  font: 500 11px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 0 8px 1px 0;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.08);
}

.hero h1 {
  margin: 26px 0 28px;
  font: 600 clamp(52px, 6.1vw, 84px)/0.98 var(--display);
  letter-spacing: -0.06em;
}

.hero h1 span {
  color: rgba(255, 255, 255, 0.44);
}

.hero-subtitle {
  max-width: 680px;
  margin: 0 auto;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  margin-top: 38px;
}

.hero-actions > span {
  color: var(--faint);
  font: 400 12px/1.4 var(--mono);
}

.button {
  display: inline-flex;
  min-height: 48px;
  padding: 0 20px;
  align-items: center;
  gap: 24px;
  color: #000;
  background: #fff;
  border: 1px solid #fff;
  border-radius: 2px;
  font: 600 13px/1 var(--display);
  transition: color 180ms ease, background 180ms ease;
}

.button:hover {
  color: #fff;
  background: #000;
}

.network {
  position: relative;
  height: 560px;
  margin: 105px 0 100px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--surface);
}

.network-grid {
  position: absolute;
  inset: 0;
  opacity: 0.17;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(circle at center, #000 0, transparent 72%);
}

.network-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.network-lines path {
  fill: none;
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 1;
  stroke-dasharray: 3 5;
}

.network-lines circle {
  fill: #fff;
  opacity: 0.6;
}

.tool-node {
  position: absolute;
  z-index: 3;
  display: flex;
  width: 126px;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.7);
  font: 400 10px/1.2 var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.tool-icon {
  display: grid;
  width: 40px;
  height: 40px;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: #050505;
}

.tool-icon img {
  width: 68%;
  height: 68%;
  object-fit: contain;
  filter: grayscale(1) brightness(2.3) contrast(1.35);
}

.node-antigravity { top: 80px; left: 10.5%; }
.node-claude { top: 80px; right: 7%; }
.node-codex { bottom: 80px; left: 10.5%; }
.node-copilot { right: 7%; bottom: 80px; }
.node-cursor {
  top: 24px;
  left: 50%;
  flex-direction: column;
  transform: translateX(-50%);
  text-align: center;
}

.brain-shell {
  position: absolute;
  z-index: 2;
  top: 50%;
  left: 50%;
  width: 300px;
  height: 300px;
  transform: translate(-50%, -50%);
}

.brain-shell::before {
  position: absolute;
  inset: 8px;
  content: "";
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
}

.brain-shell::after {
  position: absolute;
  inset: 49px;
  content: "";
  border: 1px dashed rgba(255, 255, 255, 0.12);
  border-radius: 50%;
}

.brain-core {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 50%;
  display: flex;
  width: 100px;
  height: 100px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: #000;
}

.brain-core span {
  font: 600 18px/1 var(--display);
}

.brain-core small {
  margin-top: 7px;
  color: var(--faint);
  font: 400 8px/1 var(--mono);
  text-transform: uppercase;
}

.network-caption {
  position: absolute;
  bottom: 22px;
  left: 50%;
  z-index: 3;
  margin: 0;
  transform: translateX(-50%);
  color: var(--faint);
  font: 400 10px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.stream-wrap {
  max-width: 920px;
  margin: 0 auto;
}

.stream-heading {
  display: flex;
  margin-bottom: 14px;
  align-items: center;
  justify-content: space-between;
}

.stream-heading > span {
  color: var(--faint);
  font: 400 10px/1 var(--mono);
  text-transform: uppercase;
}

.stream {
  min-height: 190px;
  padding: 25px 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  font: 400 12px/1.8 var(--mono);
}

.stream-line {
  display: grid;
  grid-template-columns: 62px 190px 1fr;
  opacity: 0;
}

.stream-line.visible {
  opacity: 1;
}

.stream-time,
.stream-source {
  color: var(--faint);
}

.stream-text {
  color: rgba(255, 255, 255, 0.82);
}

.stream-cursor::after {
  content: "▋";
  margin-left: 2px;
  animation: blink 800ms steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.section {
  padding: 150px 0;
  border-top: 1px solid var(--line);
}

.problem {
  display: grid;
  grid-template-columns: 1fr 2.2fr;
}

.problem-copy h2,
.section-heading h2,
.final-cta h2 {
  margin: 0;
  font: 600 clamp(42px, 5vw, 66px)/1.02 var(--display);
  letter-spacing: -0.055em;
}

.problem-copy {
  max-width: 760px;
}

.body-copy {
  display: grid;
  max-width: 600px;
  margin-top: 54px;
  gap: 17px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.body-copy p {
  margin: 0;
}

.body-copy code,
.step code {
  color: rgba(255, 255, 255, 0.86);
  font: 400 0.88em/1 var(--mono);
}

.body-copy .statement {
  margin-top: 22px;
  color: #fff;
  font: 500 23px/1.45 var(--display);
}

.fragmentation {
  display: grid;
  grid-template-columns: 1fr 2.2fr;
  padding: 0 0 150px;
}

.fragmentation-heading h2 {
  margin: 28px 0 0;
  font: 500 28px/1.1 var(--display);
  letter-spacing: -0.04em;
}

.fragment-list {
  border-top: 1px solid var(--line);
}

.fragment-row {
  display: grid;
  grid-template-columns: 1.1fr 1.6fr 1fr;
  padding: 21px 0;
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.fragment-row > span {
  font: 500 14px/1 var(--display);
}

.fragment-row code {
  color: rgba(255, 255, 255, 0.7);
  font: 400 11px/1 var(--mono);
}

.fragment-row p {
  margin: 0;
  color: var(--faint);
  font: 400 11px/1 var(--mono);
  text-align: right;
  text-transform: uppercase;
}

.fragmentation-summary {
  grid-column: 2;
  display: flex;
  margin: 26px 0 0;
  justify-content: space-between;
  color: var(--faint);
  font: 400 10px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.fragmentation-summary strong {
  color: #fff;
  font-weight: 400;
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 2.2fr;
  margin-bottom: 90px;
}

.step-list {
  border-top: 1px solid var(--line);
}

.step {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  padding: 43px 0;
  border-bottom: 1px solid var(--line);
}

.step-number,
.feature-grid article > span {
  color: rgba(255, 255, 255, 0.2);
  font: 400 11px/1 var(--mono);
}

.step > div {
  grid-column: 2 / 4;
  display: grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap: 50px;
}

.step h3 {
  margin: 0;
  font: 500 25px/1.2 var(--display);
  letter-spacing: -0.035em;
}

.step > div > p:last-child {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.feature-grid article {
  position: relative;
  min-height: 240px;
  padding: 34px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.feature-grid article > span {
  position: absolute;
  top: 34px;
  right: 34px;
}

.feature-grid h3 {
  max-width: 410px;
  margin: 80px 0 0;
  font: 500 25px/1.25 var(--display);
  letter-spacing: -0.035em;
}

.protocol-intro {
  max-width: 670px;
  margin: -35px 0 70px 31.25%;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.compiler-flow {
  display: grid;
  min-height: 340px;
  grid-template-columns: 1fr 60px 1.25fr 60px 1fr;
  align-items: center;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.flow-column {
  display: flex;
  min-height: 260px;
  flex-direction: column;
  justify-content: center;
  gap: 15px;
}

.flow-column code {
  color: rgba(255, 255, 255, 0.7);
  font: 400 11px/1 var(--mono);
}

.flow-column-right {
  align-items: flex-end;
  text-align: right;
}

.flow-arrow {
  color: rgba(255, 255, 255, 0.25);
  font: 400 20px/1 var(--mono);
  text-align: center;
}

.flow-core {
  display: flex;
  min-height: 170px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.26);
  background: rgba(255, 255, 255, 0.035);
  text-align: center;
}

.flow-core span {
  font: 600 32px/1 var(--display);
  letter-spacing: -0.04em;
}

.flow-core small {
  margin-top: 14px;
  color: var(--faint);
  font: 400 9px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.protocol-note {
  max-width: 630px;
  margin: 34px auto 0;
  color: var(--faint);
  font: 400 11px/1.65 var(--mono);
  text-align: center;
}

.memory-files {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 100px;
  align-items: center;
}

.memory-copy h2 {
  margin: 35px 0 30px;
  font: 600 clamp(42px, 5vw, 66px)/1.02 var(--display);
  letter-spacing: -0.055em;
}

.memory-copy > p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.memory-copy ul {
  display: grid;
  margin: 40px 0 0;
  padding: 0;
  gap: 17px;
  color: var(--faint);
  font: 400 11px/1.5 var(--mono);
  list-style: none;
}

.memory-copy li {
  padding-top: 17px;
  border-top: 1px solid var(--line);
}

.memory-copy li span {
  display: inline-block;
  min-width: 126px;
  color: #fff;
  text-transform: uppercase;
}

.file-tree {
  border: 1px solid var(--line);
  background: var(--surface);
}

.terminal-bar {
  display: flex;
  height: 48px;
  padding: 0 18px;
  align-items: center;
  gap: 13px;
  border-bottom: 1px solid var(--line);
  color: var(--faint);
  font: 400 10px/1 var(--mono);
}

.terminal-bar > span:first-child {
  width: 6px;
  height: 6px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
}

.file-tree pre {
  margin: 0;
  padding: 38px;
  overflow-x: auto;
  color: rgba(255, 255, 255, 0.45);
  font: 400 11px/2.05 var(--mono);
}

.file-tree pre > span,
.file-tree b {
  color: rgba(255, 255, 255, 0.88);
  font-weight: 400;
}

.file-tree i {
  color: rgba(255, 255, 255, 0.25);
  font-style: normal;
}

.terminal-command {
  display: grid;
  min-height: 52px;
  padding: 0 18px;
  grid-template-columns: 20px 1fr auto;
  align-items: center;
  border-top: 1px solid var(--line);
  color: rgba(255, 255, 255, 0.72);
  font: 400 10px/1 var(--mono);
}

.terminal-command > span {
  color: var(--faint);
}

.terminal-command strong {
  color: rgba(255, 255, 255, 0.35);
  font-weight: 400;
}

.commands-table-wrapper {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface);
  overflow: hidden;
}

.commands-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.commands-table th,
.commands-table td {
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  font: 400 13px/1.5 var(--body);
  color: var(--muted);
}

.commands-table th {
  font: 500 14px/1 var(--display);
  color: #fff;
}

.commands-table tbody tr:last-child td {
  border-bottom: none;
}

.commands-table code {
  color: rgba(255, 255, 255, 0.86);
  background: rgba(255, 255, 255, 0.05);
  padding: 6px 10px;
  border-radius: 4px;
  font: 400 12px/1 var(--mono);
}

.traction {
  display: flex;
  min-height: 125px;
  align-items: center;
  justify-content: center;
  gap: 24px;
  border-top: 1px solid var(--line);
  color: var(--faint);
  font: 400 10px/1 var(--mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.traction i {
  width: 2px;
  height: 2px;
  background: #fff;
  border-radius: 50%;
  opacity: 0.3;
}

.final-cta {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.final-cta-inner {
  padding: 160px 0;
  text-align: center;
}

.final-cta h2 {
  margin: 28px 0 50px;
}

.button-large {
  min-height: 56px;
  padding: 0 24px;
}

.cta-note {
  margin: 25px 0 0;
  color: var(--faint);
  font: 400 10px/1.6 var(--mono);
}

.cta-note span {
  padding: 0 9px;
}

.footer {
  display: grid;
  min-height: 130px;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  color: var(--faint);
  font: 400 10px/1 var(--mono);
}

.footer .wordmark {
  color: #fff;
  font-size: 20px;
}

.footer p:nth-child(2) {
  text-align: center;
}

.footer p:last-child {
  text-align: right;
}

@media (max-width: 800px) {
  .shell { width: min(100% - 30px, 600px); }
  .nav { min-height: 64px; }
  .nav-links { gap: 18px; }
  .nav-links a:first-child { display: none; }
  .hero { padding: 90px 0 80px; }
  .hero h1 { margin-top: 22px; font-size: clamp(40px, 12vw, 58px); }
  .hero-subtitle { font-size: 15px; }
  .hero-actions { flex-direction: column; gap: 14px; }
  .network { height: 590px; margin: 75px 0; }
  .network-lines {
    display: block;
    z-index: 1;
    pointer-events: none;
  }
  .network-lines path {
    stroke: rgba(255, 255, 255, 0.42);
    stroke-width: 1.5;
    stroke-dasharray: 5 7;
  }
  .network-lines circle {
    opacity: 0.8;
  }
  .brain-shell { width: 240px; height: 240px; }
  .tool-node { width: 108px; flex-direction: column; text-align: center; }
  .node-antigravity { top: 40px; left: 8%; }
  .node-claude { top: 40px; right: 8%; }
  .node-codex { bottom: 48px; left: 8%; }
  .node-copilot { right: 8%; bottom: 48px; }
  .node-cursor {
    top: 13px;
    left: 50%;
    width: 70px;
  }
  .node-cursor .tool-icon {
    width: 34px;
    height: 34px;
  }
  .network-caption { bottom: 16px; }
  .stream { min-height: 250px; padding: 20px; font-size: 10px; }
  .stream-line { grid-template-columns: 49px 1fr; margin-bottom: 7px; line-height: 1.55; }
  .stream-text { grid-column: 2; }
  .section { padding: 100px 0; }
  .problem,
  .section-heading { display: block; }
  .problem-copy,
  .section-heading h2 { margin-top: 45px; }
  .problem-copy h2,
  .section-heading h2,
  .final-cta h2 { font-size: 40px; }
  .body-copy { margin-top: 40px; }
  .fragmentation { display: block; padding-bottom: 100px; }
  .fragment-list { margin-top: 45px; }
  .fragment-row { grid-template-columns: 1fr 1.35fr; gap: 8px; }
  .fragment-row p { grid-column: 1 / 3; margin-top: 5px; text-align: left; }
  .fragmentation-summary { grid-column: auto; flex-wrap: wrap; gap: 13px; }
  .section-heading { margin-bottom: 60px; }
  .step { display: grid; grid-template-columns: 40px 1fr; padding: 38px 0; }
  .step > div { grid-column: 2; display: block; }
  .step h3 { margin: 20px 0 18px; }
  .feature-grid { grid-template-columns: 1fr; }
  .protocol-intro { margin: -20px 0 50px; }
  .compiler-flow {
    grid-template-columns: 1fr;
    padding: 35px 0;
    gap: 25px;
  }
  .flow-column,
  .flow-core { min-height: auto; }
  .flow-column { align-items: center; text-align: center; }
  .flow-column-right { align-items: center; text-align: center; }
  .flow-arrow { transform: rotate(90deg); }
  .flow-core { min-height: 150px; }
  .memory-files { grid-template-columns: 1fr; gap: 55px; }
  .file-tree pre { padding: 25px 18px; font-size: 9px; }
  .terminal-command { grid-template-columns: 18px 1fr; }
  .terminal-command strong { grid-column: 2; margin: 0 0 14px; }
  .feature-grid article { min-height: 210px; }
  .feature-grid h3 { margin-top: 68px; font-size: 23px; }
  .traction { flex-wrap: wrap; gap: 12px; padding: 35px 20px; text-align: center; }
  .final-cta-inner { padding: 110px 15px; }
  .final-cta h2 br { display: none; }
  .cta-note span { padding: 0 3px; }
  .footer { min-height: 150px; grid-template-columns: 1fr 1fr; }
  .footer p:nth-child(2) { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
  .stream-line { opacity: 1; }
}