:root {
  --ink: #11110f;
  --ink-soft: #24241f;
  --paper: #f4f3ed;
  --paper-strong: #fffef8;
  --lime: #c9ff36;
  --lime-hot: #b7f20d;
  --muted: #77766d;
  --shadow: 0 32px 90px rgba(15, 15, 12, 0.18);
  --display: "Arial Narrow", "Helvetica Neue", Arial, sans-serif;
  --body: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

* {
  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: 1.5;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button {
  color: inherit;
  font: inherit;
}

:focus-visible {
  outline: 3px solid var(--lime);
  outline-offset: 5px;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 16px;
  color: var(--ink);
  background: var(--lime);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.shell {
  width: min(100% - 64px, 1440px);
  margin-inline: auto;
}

.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 20;
  color: var(--paper-strong);
}

.nav {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  min-height: 94px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  width: fit-content;
  font-size: 17px;
  font-weight: 720;
  letter-spacing: -0.035em;
}

.brand-mark {
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  color: var(--ink);
  background: var(--lime);
  border-radius: 50%;
  font-size: 11px;
  font-weight: 900;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
  font-size: 13px;
}

.nav-links a {
  color: rgba(255, 254, 248, 0.7);
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--lime);
}

.mobile-login {
  display: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
}

.lang-switch {
  display: flex;
  gap: 8px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.lang-switch a {
  color: rgba(255, 254, 248, 0.45);
}

.lang-switch a[aria-current="page"] {
  color: var(--lime);
}

.login-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 20px;
  color: var(--ink);
  background: var(--lime);
  font-size: 13px;
  font-weight: 760;
  transition: background 180ms ease, transform 180ms ease;
}

.login-link:hover {
  background: var(--paper-strong);
  transform: translateY(-2px);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 6px auto;
  background: currentColor;
  transition: transform 220ms ease;
}

.hero {
  position: relative;
  min-height: 880px;
  overflow: hidden;
  color: var(--paper-strong);
  background: var(--ink);
}

.hero::after {
  position: absolute;
  right: -13vw;
  bottom: -32vw;
  width: 72vw;
  height: 72vw;
  background: var(--lime);
  border-radius: 50%;
  content: "";
  filter: saturate(1.02);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(400px, 0.7fr);
  gap: clamp(48px, 8vw, 140px);
  align-items: end;
  min-height: 880px;
  padding-top: 180px;
  padding-bottom: 74px;
}

.hero-copy {
  align-self: center;
  max-width: 900px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 36px;
  color: var(--lime);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 9px;
  height: 9px;
  background: currentColor;
  border-radius: 50%;
  content: "";
  box-shadow: 0 0 0 7px rgba(201, 255, 54, 0.11);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 1000px;
  margin-bottom: 36px;
  font-family: var(--display);
  font-size: clamp(72px, 8.2vw, 132px);
  font-stretch: condensed;
  font-weight: 760;
  letter-spacing: -0.075em;
  line-height: 0.82;
}

h1 .signal {
  color: var(--lime);
}

.hero-lede {
  max-width: 600px;
  margin-bottom: 38px;
  color: rgba(255, 254, 248, 0.7);
  font-size: clamp(18px, 1.4vw, 22px);
  line-height: 1.42;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 58px;
  padding: 0 28px;
  background: var(--lime);
  font-size: 14px;
  font-weight: 780;
  transition: transform 220ms var(--ease), background 220ms ease;
}

.button:hover {
  background: var(--paper-strong);
  transform: translateY(-3px);
}

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

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

.text-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  padding: 0 6px;
  color: rgba(255, 254, 248, 0.75);
  font-size: 14px;
  font-weight: 680;
}

.text-link::after {
  width: 22px;
  height: 1px;
  margin-left: 12px;
  background: var(--lime);
  content: "";
  transition: width 180ms ease;
}

.text-link:hover::after {
  width: 38px;
}

.hero-rail {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 540px;
  padding-bottom: 22px;
  color: var(--ink);
}

.rail-label {
  margin-bottom: 40px;
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.rail-step {
  position: relative;
  display: grid;
  grid-template-columns: 56px 1fr auto;
  gap: 16px;
  align-items: baseline;
  padding: 21px 0;
}

.rail-step::before {
  position: absolute;
  top: 50%;
  left: 19px;
  width: 10px;
  height: 10px;
  background: var(--ink);
  border-radius: 50%;
  content: "";
  transform: translateY(-50%);
}

.rail-step::after {
  position: absolute;
  top: calc(50% + 8px);
  bottom: calc(-50% + 8px);
  left: 23px;
  width: 2px;
  background: rgba(17, 17, 15, 0.25);
  content: "";
}

.rail-step:last-child::after {
  display: none;
}

.rail-number {
  font-size: 10px;
  font-weight: 900;
}

.rail-name {
  font-family: var(--display);
  font-size: clamp(24px, 2.2vw, 34px);
  font-weight: 770;
  letter-spacing: -0.045em;
}

.rail-meta {
  max-width: 100px;
  font-size: 11px;
  font-weight: 670;
  line-height: 1.2;
  text-align: right;
}

.intro {
  padding: clamp(110px, 13vw, 210px) 0 clamp(100px, 12vw, 185px);
}

.intro-grid {
  display: grid;
  grid-template-columns: 0.36fr 1fr;
  gap: 8vw;
}

.section-kicker {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.intro h2,
.control h2,
.final-cta h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(54px, 6.3vw, 104px);
  font-weight: 760;
  letter-spacing: -0.065em;
  line-height: 0.94;
}

.intro h2 {
  max-width: 1050px;
}

.intro h2 em {
  font-family: Georgia, serif;
  font-weight: 400;
}

.manifesto {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 52px;
  margin-top: 110px;
  margin-left: calc(36% + 8vw);
}

.manifesto-item strong {
  display: block;
  margin-bottom: 14px;
  font-size: 18px;
  letter-spacing: -0.025em;
}

.manifesto-item p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.workflow {
  position: relative;
  color: var(--paper-strong);
  background: var(--ink-soft);
}

.workflow-head {
  display: grid;
  grid-template-columns: 0.58fr 1fr;
  gap: 7vw;
  padding: 105px 0 80px;
}

.workflow-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(54px, 7vw, 110px);
  font-weight: 770;
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.workflow-head p {
  align-self: end;
  max-width: 520px;
  margin-bottom: 8px;
  color: rgba(255, 254, 248, 0.58);
  font-size: 18px;
}

.stages {
  padding-bottom: 80px;
}

.stage {
  display: grid;
  grid-template-columns: 0.18fr 0.56fr 0.8fr;
  gap: 5vw;
  align-items: start;
  min-height: 260px;
  padding: 58px 0;
  background-image: linear-gradient(to right, rgba(255,255,255,0.14) 0 48%, transparent 48% 52%, rgba(255,255,255,0.14) 52% 100%);
  background-position: top;
  background-size: 12px 1px;
  background-repeat: repeat-x;
}

.stage:last-child {
  padding-bottom: 20px;
}

.stage-number {
  color: var(--lime);
  font-size: 12px;
  font-weight: 850;
  letter-spacing: 0.08em;
}

.stage h3 {
  margin-bottom: 0;
  font-family: var(--display);
  font-size: clamp(35px, 4vw, 62px);
  font-weight: 740;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.stage-body {
  display: grid;
  grid-template-columns: 1fr 0.8fr;
  gap: 44px;
}

.stage-body > p {
  max-width: 470px;
  margin-bottom: 0;
  color: rgba(255, 254, 248, 0.64);
  font-size: 16px;
  line-height: 1.65;
}

.stage-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.stage-list li {
  position: relative;
  padding: 8px 0 8px 20px;
  color: rgba(255, 254, 248, 0.82);
  font-size: 13px;
}

.stage-list li::before {
  position: absolute;
  top: 16px;
  left: 0;
  width: 7px;
  height: 7px;
  background: var(--lime);
  border-radius: 50%;
  content: "";
}

.control {
  position: relative;
  overflow: hidden;
  background: var(--lime);
}

.control::before {
  position: absolute;
  top: -38vw;
  right: -8vw;
  width: 68vw;
  height: 68vw;
  background: rgba(255, 255, 255, 0.21);
  border-radius: 50%;
  content: "";
}

.control-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 0.62fr;
  gap: 9vw;
  min-height: 690px;
  padding: 120px 0 110px;
}

.control h2 {
  max-width: 930px;
}

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

.control-copy > p {
  max-width: 500px;
  margin-bottom: 48px;
  font-size: 19px;
  line-height: 1.55;
}

.control-points {
  display: grid;
  gap: 28px;
}

.control-point {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 12px;
}

.control-point span {
  font-size: 11px;
  font-weight: 900;
}

.control-point p {
  margin: 0;
  font-size: 14px;
  font-weight: 650;
}

.capabilities {
  padding: clamp(110px, 12vw, 190px) 0;
}

.capability-head {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8vw;
  align-items: end;
  margin-bottom: 90px;
}

.capability-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 7.4vw, 118px);
  font-weight: 760;
  letter-spacing: -0.07em;
  line-height: 0.88;
}

.capability-head p {
  max-width: 540px;
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 18px;
}

.capability-list {
  counter-reset: capability;
}

.capability {
  position: relative;
  display: grid;
  grid-template-columns: 0.16fr 0.84fr 0.62fr;
  gap: 6vw;
  align-items: baseline;
  padding: 40px 0;
  background-image: linear-gradient(to right, rgba(17,17,15,0.25) 0 50%, transparent 50% 58%, rgba(17,17,15,0.25) 58% 100%);
  background-position: top;
  background-size: 13px 1px;
  background-repeat: repeat-x;
  counter-increment: capability;
}

.capability::before {
  color: var(--muted);
  content: "0" counter(capability);
  font-size: 11px;
  font-weight: 850;
}

.capability h3 {
  margin: 0;
  font-family: var(--display);
  font-size: clamp(28px, 3vw, 48px);
  font-weight: 730;
  letter-spacing: -0.05em;
}

.capability p {
  max-width: 510px;
  margin: 0;
  color: var(--muted);
  font-size: 15px;
}

.faq {
  padding: 110px 0 130px;
  color: var(--paper-strong);
  background: var(--ink);
}

.faq-grid {
  display: grid;
  grid-template-columns: 0.58fr 1fr;
  gap: 8vw;
}

.faq h2 {
  position: sticky;
  top: 40px;
  margin: 0;
  font-family: var(--display);
  font-size: clamp(58px, 7vw, 112px);
  font-weight: 750;
  letter-spacing: -0.07em;
  line-height: 0.87;
}

.faq-list details {
  padding: 28px 0;
  background-image: linear-gradient(to right, rgba(255,255,255,0.16) 0 48%, transparent 48% 52%, rgba(255,255,255,0.16) 52% 100%);
  background-position: top;
  background-size: 12px 1px;
  background-repeat: repeat-x;
}

.faq-list summary {
  display: grid;
  grid-template-columns: 1fr 34px;
  gap: 24px;
  align-items: start;
  cursor: pointer;
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.025em;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  color: var(--lime);
  content: "+";
  font-size: 28px;
  font-weight: 400;
  line-height: 1;
  text-align: right;
  transition: transform 220ms ease;
}

.faq-list details[open] summary::after {
  transform: rotate(45deg);
}

.faq-list details p {
  max-width: 650px;
  margin: 20px 50px 0 0;
  color: rgba(255, 254, 248, 0.58);
  font-size: 16px;
}

.final-cta {
  position: relative;
  overflow: hidden;
  padding: 120px 0;
  background: var(--paper-strong);
}

.final-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: end;
}

.final-cta h2 {
  max-width: 1060px;
}

.final-cta h2 span {
  display: block;
  color: var(--muted);
}

.final-action {
  display: grid;
  width: 170px;
  height: 170px;
  place-items: center;
  padding: 30px;
  background: var(--lime);
  border-radius: 50%;
  font-size: 14px;
  font-weight: 800;
  text-align: center;
  transition: transform 260ms var(--ease), background 180ms ease;
}

.final-action:hover {
  background: var(--lime-hot);
  transform: rotate(-5deg) scale(1.04);
}

.site-footer {
  padding: 62px 0 40px;
  color: rgba(255, 254, 248, 0.66);
  background: var(--ink);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: end;
}

.footer-brand {
  font-family: var(--display);
  font-size: clamp(56px, 9vw, 138px);
  font-weight: 770;
  letter-spacing: -0.075em;
  line-height: 0.8;
}

.footer-meta {
  display: grid;
  gap: 10px;
  justify-items: end;
  font-size: 12px;
  text-align: right;
}

.footer-meta a:hover {
  color: var(--lime);
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .shell {
    width: min(100% - 40px, 980px);
  }

  .nav {
    grid-template-columns: 1fr auto;
  }

  .nav-links {
    position: fixed;
    inset: 0;
    z-index: -1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: 90px 40px;
    color: var(--paper-strong);
    background: var(--ink);
    font-family: var(--display);
    font-size: 38px;
    font-weight: 720;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-16px);
    transition: opacity 220ms ease, transform 220ms ease;
  }

  .menu-open .nav-links {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links .mobile-login {
    display: inline-flex;
    align-items: center;
    min-height: 54px;
    margin-top: 22px;
    padding: 0 20px;
    color: var(--ink);
    background: var(--lime);
    font-family: var(--body);
    font-size: 14px;
    font-weight: 800;
  }

  .menu-toggle {
    position: relative;
    z-index: 2;
    display: block;
  }

  .menu-open .menu-toggle span:first-child {
    transform: translateY(4px) rotate(45deg);
  }

  .menu-open .menu-toggle span:last-child {
    transform: translateY(-4px) rotate(-45deg);
  }

  .login-link {
    display: none;
  }

  .nav-actions {
    position: relative;
    z-index: 2;
  }

  .hero,
  .hero-inner {
    min-height: 830px;
  }

  .hero-inner {
    grid-template-columns: 1fr 0.58fr;
    gap: 44px;
  }

  .hero::after {
    right: -20vw;
    bottom: -14vw;
    width: 72vw;
    height: 72vw;
  }

  .manifesto {
    margin-left: 0;
  }

  .stage {
    grid-template-columns: 0.12fr 0.55fr 1fr;
  }

  .stage-body {
    grid-template-columns: 1fr;
  }

  .control-grid {
    grid-template-columns: 1fr 0.78fr;
  }
}

@media (max-width: 720px) {
  .shell {
    width: min(100% - 32px, 640px);
  }

  .nav {
    min-height: 76px;
  }

  .lang-switch {
    margin-left: auto;
  }

  .hero {
    min-height: 920px;
  }

  .hero-inner {
    display: block;
    min-height: auto;
    padding-top: 134px;
    padding-bottom: 50px;
  }

  .hero::after {
    right: -29vw;
    bottom: -13vw;
    width: 104vw;
    height: 104vw;
  }

  .eyebrow {
    margin-bottom: 26px;
  }

  h1 {
    margin-bottom: 28px;
    font-size: clamp(61px, 18vw, 82px);
    line-height: 0.84;
  }

  .hero-lede {
    max-width: 560px;
    font-size: 17px;
  }

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

  .button {
    width: fit-content;
  }

  .hero-rail {
    min-height: 400px;
    max-width: 380px;
    margin-top: 54px;
    margin-left: auto;
    padding: 44px 0 0 40px;
  }

  .rail-label {
    margin-bottom: 18px;
  }

  .rail-step {
    grid-template-columns: 42px 1fr;
    gap: 8px;
    padding: 16px 0;
  }

  .rail-step::before {
    left: 8px;
  }

  .rail-step::after {
    left: 12px;
  }

  .rail-meta {
    display: none;
  }

  .intro-grid,
  .workflow-head,
  .control-grid,
  .capability-head,
  .faq-grid,
  .final-grid,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .intro {
    padding: 100px 0;
  }

  .intro-grid {
    gap: 36px;
  }

  .intro h2,
  .control h2,
  .final-cta h2 {
    font-size: clamp(49px, 14vw, 72px);
  }

  .manifesto {
    grid-template-columns: 1fr;
    gap: 38px;
    margin-top: 70px;
    margin-left: 0;
  }

  .workflow-head {
    gap: 34px;
    padding: 90px 0 60px;
  }

  .workflow-head h2 {
    font-size: 64px;
  }

  .stage {
    grid-template-columns: 42px 1fr;
    gap: 8px 16px;
    min-height: 0;
    padding: 40px 0;
  }

  .stage h3 {
    font-size: 39px;
  }

  .stage-body {
    grid-column: 2;
    gap: 22px;
  }

  .control-grid {
    gap: 70px;
    min-height: 760px;
    padding: 90px 0;
  }

  .control::before {
    top: -17vw;
    right: -56vw;
    width: 125vw;
    height: 125vw;
  }

  .control-copy {
    align-self: auto;
  }

  .capabilities {
    padding: 105px 0;
  }

  .capability-head {
    gap: 36px;
    margin-bottom: 60px;
  }

  .capability-head h2 {
    font-size: 70px;
  }

  .capability {
    grid-template-columns: 36px 1fr;
    gap: 12px;
    padding: 30px 0;
  }

  .capability p {
    grid-column: 2;
  }

  .faq {
    padding: 90px 0 105px;
  }

  .faq-grid {
    gap: 70px;
  }

  .faq h2 {
    position: static;
    font-size: 74px;
  }

  .faq-list summary {
    font-size: 18px;
  }

  .final-cta {
    padding: 90px 0;
  }

  .final-action {
    width: 144px;
    height: 144px;
    margin-left: auto;
  }

  .footer-grid {
    gap: 50px;
  }

  .footer-meta {
    justify-items: start;
    text-align: left;
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }
}
