:root {
  --ink: #101012;
  --paper: #ffffff;
  --soft: #f3f3f1;
  --muted: #6f7075;
  --quiet: #a2a3a8;
  --line: #d8d8d5;
  --line-dark: #bababb;
  --blue: #165dff;
  --blue-soft: #e9efff;
  --approval: #ff6b35;
  --success: #16845b;
  --display: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --utility: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--display);
  font-size: 16px;
  line-height: 1.5;
  text-rendering: optimizeLegibility;
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--paper);
  transform: translateY(-150%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: relative;
  z-index: 20;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 78px;
  padding: 0 clamp(22px, 4.2vw, 72px);
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 9px;
  width: fit-content;
  font-size: 15px;
  font-weight: 650;
  letter-spacing: -0.03em;
  text-decoration: none;
}

.wordmark-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--blue);
  box-shadow: 0 0 0 5px var(--blue-soft);
}

.wordmark small {
  margin-left: 4px;
  color: var(--quiet);
  font-family: var(--utility);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.site-header nav {
  display: flex;
  gap: 28px;
}

.site-header nav a {
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
}

.site-header nav a:hover {
  color: var(--ink);
}

.header-cta {
  justify-self: end;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--ink);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(420px, 0.8fr);
  gap: clamp(48px, 7vw, 118px);
  align-items: center;
  padding: clamp(64px, 8vh, 96px) clamp(22px, 4.2vw, 72px) clamp(72px, 10vh, 112px);
}

.eyebrow,
.card-label {
  margin: 0 0 20px;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 940px;
  margin: 0;
  font-size: clamp(66px, 8vw, 142px);
  font-weight: 455;
  letter-spacing: -0.072em;
  line-height: 0.84;
}

.hero h1 span {
  color: var(--blue);
}

.hero-lede {
  max-width: 760px;
  margin: 36px 0 0;
  color: #3d3e42;
  font-size: clamp(18px, 1.55vw, 25px);
  line-height: 1.42;
  letter-spacing: -0.018em;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 28px;
  margin-top: 36px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  min-width: 224px;
  padding: 15px 17px;
  border: 1px solid;
  font-size: 12px;
  font-weight: 620;
  text-decoration: none;
  transition: transform 160ms ease, background 160ms ease;
}

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

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

.button-primary:hover {
  background: #0048d9;
}

.text-link {
  padding-bottom: 3px;
  border-bottom: 1px solid var(--line-dark);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.prototype-note {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 26px 0 0;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 9px;
}

.prototype-note span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
}

.change-console {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--paper);
  box-shadow: 18px 18px 0 var(--soft);
}

.change-console::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--blue);
  content: "";
  transform-origin: left;
  animation: run-progress 5s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes run-progress {
  0% { transform: scaleX(0); }
  75%, 100% { transform: scaleX(1); }
}

.console-topline,
.console-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 16px;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.console-topline {
  border-bottom: 1px solid var(--line);
}

.live-label {
  color: var(--ink);
}

.live-label i {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--blue);
}

.prompt-line {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 11px;
  padding: 23px 18px 25px;
  border-bottom: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
}

.prompt-line span {
  color: #8aaaff;
  font-family: var(--utility);
}

.prompt-line p {
  margin: 0;
  font-family: var(--utility);
  font-size: 12px;
  line-height: 1.55;
}

.run-list {
  margin: 0;
  padding: 7px 18px;
  list-style: none;
}

.run-list li {
  position: relative;
  display: grid;
  grid-template-columns: 18px 1fr auto;
  gap: 11px;
  align-items: center;
  min-height: 68px;
  padding: 11px 0;
}

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

.run-node {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  background: var(--paper);
  color: var(--paper);
  font-size: 8px;
}

.run-list .is-complete .run-node {
  border-color: var(--ink);
  background: var(--ink);
}

.run-list .is-active .run-node {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 4px var(--blue-soft);
}

.run-list strong,
.run-list small {
  display: block;
}

.run-list strong {
  font-size: 11px;
  font-weight: 620;
}

.run-list small,
.run-list time {
  margin-top: 3px;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 8px;
}

.approval-chip {
  padding: 5px 8px;
  border: 1px solid #ffbda6;
  background: #fff1eb;
  color: #b33d15;
  font-family: var(--utility);
  font-size: 8px;
}

.console-footer {
  border-top: 1px solid var(--line);
  background: var(--soft);
}

.problem-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.problem-strip article {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 16px;
  min-height: 168px;
  padding: 30px clamp(22px, 3vw, 48px);
}

.problem-strip article + article {
  border-left: 1px solid var(--ink);
}

.problem-strip span {
  color: var(--quiet);
  font-family: var(--utility);
  font-size: 9px;
}

.problem-strip p {
  max-width: 340px;
  margin: 0;
  font-size: clamp(17px, 1.5vw, 23px);
  letter-spacing: -0.02em;
  line-height: 1.35;
}

.control-section,
.workflow-section,
.delivery-section,
.proof-section {
  padding: 130px clamp(22px, 4.2vw, 72px);
}

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  column-gap: 72px;
  align-items: end;
}

.section-intro .eyebrow {
  grid-column: 1 / -1;
}

.section-intro h2,
.workflow-heading h2,
.delivery-copy h2,
.proof-section h2,
.final-cta h2 {
  margin: 0;
  font-size: clamp(50px, 6vw, 98px);
  font-weight: 455;
  letter-spacing: -0.06em;
  line-height: 0.95;
}

.section-intro > p:last-child,
.workflow-heading > p,
.delivery-copy > p,
.proof-copy p {
  margin: 0;
  color: #47484d;
  font-size: 16px;
  line-height: 1.6;
}

.control-rail {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  margin-top: 80px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--line);
}

.control-rail article {
  position: relative;
  min-height: 210px;
  padding: 22px 22px 28px;
}

.control-rail article + article {
  border-left: 1px solid var(--line);
}

.control-rail article::before {
  position: absolute;
  top: -5px;
  left: 21px;
  width: 9px;
  height: 9px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
  content: "";
}

.control-rail article[data-step="approve"]::before {
  border-color: var(--approval);
  background: var(--approval);
  box-shadow: 0 0 0 5px #fff0eb;
}

.control-rail article[data-step="release"]::before {
  border-color: var(--blue);
  background: var(--blue);
  box-shadow: 0 0 0 5px var(--blue-soft);
}

.rail-index {
  display: block;
  margin-bottom: 45px;
  color: var(--quiet);
  font-family: var(--utility);
  font-size: 9px;
}

.control-rail strong {
  display: block;
  font-size: 16px;
}

.control-rail p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 86px;
  border: 1px solid var(--ink);
  background: var(--ink);
}

.benefit-grid > article {
  min-width: 0;
  min-height: 470px;
  padding: 30px;
  background: var(--paper);
}

.benefit-grid h3 {
  margin: 0;
  font-size: clamp(30px, 3vw, 46px);
  font-weight: 500;
  letter-spacing: -0.045em;
}

.benefit-grid > article > p:not(.card-label) {
  min-height: 76px;
  margin: 18px 0 38px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.58;
}

.mini-diff {
  display: grid;
  gap: 1px;
  overflow: hidden;
  background: var(--line);
  border: 1px solid var(--line);
  font-family: var(--utility);
  font-size: 9px;
}

.mini-diff span {
  padding: 13px;
  background: var(--soft);
}

.mini-diff .diff-path {
  color: var(--muted);
}

.mini-diff .diff-minus {
  background: #fff0ef;
  color: #9c302e;
}

.mini-diff .diff-plus {
  background: #eaf8f0;
  color: #166c4b;
}

.interface-pair {
  display: flex;
  align-items: center;
  margin-top: 74px;
  font-family: var(--utility);
  font-size: 9px;
}

.interface-pair span {
  display: grid;
  place-items: center;
  min-width: 62px;
  height: 62px;
  border: 1px solid var(--ink);
  border-radius: 50%;
  background: var(--paper);
}

.interface-pair span:nth-of-type(2) {
  min-width: 78px;
  height: 78px;
  border-color: var(--blue);
  background: var(--blue);
  color: var(--paper);
}

.interface-pair i {
  width: 100%;
  height: 1px;
  background: var(--ink);
}

.approval-card {
  margin-top: 48px;
  border: 1px solid var(--line);
  box-shadow: 8px 8px 0 var(--soft);
}

.approval-card > div:first-child {
  display: flex;
  justify-content: space-between;
  padding: 11px 13px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--utility);
  font-size: 8px;
}

.approval-card > strong {
  display: block;
  padding: 28px 14px;
  font-size: 15px;
}

.approval-actions {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  border-top: 1px solid var(--line);
}

.approval-actions span {
  padding: 12px;
  font-size: 9px;
  text-align: center;
}

.approval-actions span + span {
  border-left: 1px solid var(--line);
  background: var(--ink);
  color: var(--paper);
}

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

.workflow-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(260px, 0.55fr);
  gap: 72px;
  align-items: end;
  padding-bottom: 70px;
}

.workflow-heading .eyebrow {
  color: #8e8f94;
}

.workflow-heading > p {
  color: #b9bac0;
}

.workflow-list {
  border-top: 1px solid #5a5b60;
}

.workflow-list article {
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) auto;
  gap: 24px;
  align-items: center;
  min-height: 155px;
  padding: 26px 0;
  border-bottom: 1px solid #35363a;
}

.workflow-number {
  color: #77787d;
  font-family: var(--utility);
  font-size: 10px;
}

.workflow-list h3 {
  margin: 0;
  font-size: clamp(25px, 2.7vw, 43px);
  font-weight: 470;
  letter-spacing: -0.04em;
}

.workflow-list p {
  max-width: 750px;
  margin: 9px 0 0;
  color: #aeb0b5;
  font-size: 12px;
}

.workflow-mode {
  padding: 7px 10px;
  border: 1px solid #4b4c51;
  border-radius: 999px;
  color: #b9bac0;
  font-family: var(--utility);
  font-size: 8px;
  white-space: nowrap;
}

.delivery-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(460px, 1.15fr);
  gap: clamp(54px, 8vw, 140px);
  align-items: center;
}

.delivery-copy h2 {
  font-size: clamp(50px, 5.5vw, 88px);
}

.delivery-copy > p {
  margin-top: 30px;
}

.delivery-copy ul {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  margin: 42px 0 0;
  padding: 0;
  border-top: 1px solid var(--ink);
  list-style: none;
}

.delivery-copy li {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--utility);
  font-size: 9px;
}

.delivery-copy li:nth-child(even) {
  padding-left: 18px;
  border-left: 1px solid var(--line);
}

.representation-demo {
  overflow: hidden;
  border: 1px solid var(--ink);
  background: var(--soft);
  box-shadow: 18px 18px 0 var(--blue-soft);
}

.demo-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px;
  border-bottom: 1px solid var(--line-dark);
  background: var(--paper);
}

.view-switcher {
  display: flex;
  gap: 3px;
}

.view-switcher button {
  padding: 7px 10px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font: 9px var(--utility);
  cursor: pointer;
}

.view-switcher button.is-selected {
  background: var(--ink);
  color: var(--paper);
}

#accept-header,
.response-meta {
  font-family: var(--utility);
  font-size: 8px;
}

#accept-header {
  color: var(--muted);
}

.browser-frame,
.markdown-frame {
  min-height: 480px;
  margin: 26px;
  border: 1px solid var(--line-dark);
  background: var(--paper);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
}

.browser-bar i {
  width: 6px;
  height: 6px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}

.browser-bar span {
  flex: 1;
  margin-left: 5px;
  padding: 5px 8px;
  background: var(--soft);
  color: var(--muted);
  font-family: var(--utility);
  font-size: 7px;
}

.rendered-page {
  padding: 54px 46px;
}

.rendered-page small {
  font: 8px var(--utility);
  letter-spacing: 0.1em;
}

.rendered-page h3 {
  max-width: 420px;
  margin: 22px 0 18px;
  font-size: clamp(34px, 3.6vw, 56px);
  font-weight: 480;
  letter-spacing: -0.05em;
  line-height: 0.98;
}

.rendered-page p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
}

.image-placeholder {
  display: block;
  height: 110px;
  margin-top: 42px;
  background: linear-gradient(110deg, var(--ink) 0 68%, var(--blue) 68% 100%);
}

.markdown-frame {
  overflow: auto;
  padding: 34px;
  background: #121316;
  color: #e3e4e9;
  font: 11px/1.75 var(--utility);
  white-space: pre-wrap;
}

.response-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 12px;
  border-top: 1px solid var(--line-dark);
  background: var(--paper);
  color: var(--muted);
}

.proof-section {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 72px;
  border-top: 1px solid var(--ink);
}

.proof-section h2 {
  max-width: 820px;
}

.proof-copy {
  align-self: end;
}

.proof-copy p + p {
  margin-top: 20px;
}

.proof-stats {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 40px;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.proof-stats article {
  min-height: 180px;
  padding: 20px;
}

.proof-stats article + article {
  border-left: 1px solid var(--line);
}

.proof-stats strong,
.proof-stats span {
  display: block;
}

.proof-stats strong {
  font-size: 78px;
  font-weight: 460;
  letter-spacing: -0.065em;
  line-height: 1;
}

.proof-stats span {
  margin-top: 22px;
  color: var(--muted);
  font-family: var(--utility);
  font-size: 9px;
}

.final-cta {
  padding: 110px clamp(22px, 7vw, 122px) 120px;
  background: var(--blue);
  color: var(--paper);
}

.final-cta .eyebrow {
  color: #cbd7ff;
}

.final-cta h2 {
  max-width: 1100px;
  font-size: clamp(62px, 8vw, 132px);
}

.final-cta > p:not(.eyebrow) {
  max-width: 650px;
  margin: 32px 0 0;
  color: #e3e9ff;
  font-size: 18px;
}

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

.text-link-light {
  border-color: #a6baff;
  color: var(--paper);
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  padding: 24px clamp(22px, 4.2vw, 72px);
  border-top: 1px solid #2e2f33;
  background: var(--ink);
  color: #9d9ea3;
  font-family: var(--utility);
  font-size: 8px;
}

@media (max-width: 1080px) {
  .hero {
    grid-template-columns: 1fr;
    padding-top: clamp(56px, 8vh, 80px);
  }

  .change-console {
    width: min(660px, 100%);
  }

  .control-rail {
    grid-template-columns: repeat(5, minmax(190px, 1fr));
    overflow-x: auto;
  }

  .benefit-grid {
    grid-template-columns: 1fr;
  }

  .benefit-grid > article {
    min-height: auto;
  }

  .benefit-grid > article > p:not(.card-label) {
    min-height: 0;
  }

  .interface-pair {
    max-width: 540px;
  }

  .delivery-section {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .site-header {
    grid-template-columns: 1fr auto;
    min-height: 66px;
  }

  .site-header nav,
  .wordmark small {
    display: none;
  }

  .hero {
    padding-top: 64px;
  }

  .hero h1 {
    font-size: clamp(58px, 18vw, 88px);
  }

  .problem-strip,
  .section-intro,
  .workflow-heading,
  .proof-section {
    grid-template-columns: 1fr;
  }

  .problem-strip article + article {
    border-top: 1px solid var(--ink);
    border-left: 0;
  }

  .problem-strip article {
    min-height: 126px;
  }

  .control-section,
  .workflow-section,
  .delivery-section,
  .proof-section {
    padding-top: 88px;
    padding-bottom: 88px;
  }

  .section-intro,
  .workflow-heading,
  .proof-section {
    gap: 34px;
  }

  .control-rail {
    margin-top: 54px;
  }

  .benefit-grid {
    margin-top: 60px;
  }

  .workflow-list article {
    grid-template-columns: 38px 1fr;
  }

  .workflow-mode {
    grid-column: 2;
    width: fit-content;
  }

  .delivery-copy ul {
    grid-template-columns: 1fr;
  }

  .delivery-copy li:nth-child(even) {
    padding-left: 0;
    border-left: 0;
  }

  .browser-frame,
  .markdown-frame {
    min-height: 390px;
    margin: 12px;
  }

  .rendered-page {
    padding: 42px 24px;
  }

  .proof-stats {
    grid-template-columns: 1fr 1fr;
  }

  .proof-stats article:nth-child(3) {
    border-left: 0;
  }

  .proof-stats article:nth-child(n + 3) {
    border-top: 1px solid var(--line);
  }

  .final-cta {
    padding-top: 86px;
    padding-bottom: 90px;
  }

  footer {
    flex-direction: column;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}