:root {
  --paper: #f4f1e8;
  --ink: #161816;
  --muted: #65665f;
  --line: rgba(22, 24, 22, 0.18);
  --lime: #dfff52;
  --purple: #432d73;
  --purple-deep: #24183c;
  --violet: #8d73c2;
  --white: #fffdf7;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  text-rendering: optimizeLegibility;
}

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

::selection {
  background: var(--lime);
  color: var(--ink);
}

.site-header {
  align-items: center;
  border-bottom: 1px solid var(--line);
  display: flex;
  height: 84px;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1440px;
  padding: 0 4vw;
}

.brand {
  align-items: center;
  display: inline-flex;
  font-size: 1.05rem;
  font-weight: 720;
  gap: 0.7rem;
  letter-spacing: -0.03em;
}

.lambda-mark {
  align-items: center;
  background: var(--lime);
  border-radius: 50%;
  display: inline-flex;
  height: 250px;
  justify-content: center;
  width: 250px;
}

.lambda-mark.compact {
  height: 34px;
  width: 34px;
}

.lambda-mark svg {
  height: 56%;
  width: 56%;
}

.lambda-mark path {
  fill: none;
  stroke: var(--ink);
  stroke-linecap: square;
  stroke-linejoin: miter;
  stroke-width: 2.7;
}

.header-link,
.footer-links a {
  align-items: center;
  display: inline-flex;
  font-size: 0.79rem;
  font-weight: 700;
  gap: 0.45rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.arrow {
  height: 1.2em;
  overflow: visible;
  width: 1.2em;
}

.arrow path {
  stroke: currentColor;
  stroke-linecap: square;
  stroke-width: 1.7;
}

.hero {
  display: grid;
  gap: clamp(3rem, 7vw, 8rem);
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  margin: 0 auto;
  max-width: 1440px;
  min-height: calc(100svh - 84px);
  overflow: hidden;
  padding: clamp(5rem, 9vw, 9rem) 4vw clamp(4rem, 7vw, 7rem);
}

.hero-copy {
  align-self: center;
  max-width: 820px;
}

.eyebrow {
  align-items: center;
  display: flex;
  font-size: 0.74rem;
  font-weight: 750;
  gap: 0.72rem;
  letter-spacing: 0.12em;
  margin: 0 0 2rem;
  text-transform: uppercase;
}

.eyebrow > span {
  background: var(--ink);
  height: 7px;
  width: 7px;
}

.hero h1,
.section-intro h2,
.company-heading h2,
.closing h2 {
  font-weight: 600;
  letter-spacing: -0.068em;
  line-height: 0.94;
  margin: 0;
}

.hero h1 {
  font-size: clamp(4.4rem, 8.5vw, 8.6rem);
  max-width: 900px;
}

.hero h1 em {
  color: var(--purple);
  display: block;
  font-family: Iowan Old Style, Baskerville, "Times New Roman", serif;
  font-weight: 400;
}

.lede {
  color: #50524c;
  font-size: clamp(1.1rem, 1.55vw, 1.4rem);
  line-height: 1.55;
  margin: 2.3rem 0 2.6rem;
  max-width: 660px;
}

.hero-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 1.8rem;
}

.button {
  align-items: center;
  display: inline-flex;
  font-size: 0.82rem;
  font-weight: 780;
  gap: 1.5rem;
  justify-content: space-between;
  letter-spacing: 0.06em;
  min-width: 190px;
  padding: 1.15rem 1.25rem;
  text-transform: uppercase;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

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

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--purple);
  transform: translateY(-2px);
}

.text-link {
  align-items: center;
  border-bottom: 1px solid var(--ink);
  display: inline-flex;
  font-size: 0.84rem;
  font-weight: 720;
  gap: 0.7rem;
  padding: 0.55rem 0;
}

.hero-visual {
  align-self: center;
  aspect-ratio: 0.83;
  background: var(--purple);
  min-height: 580px;
  overflow: hidden;
  position: relative;
}

.hero-visual::before {
  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: 52px 52px;
  content: "";
  inset: 0;
  mask-image: linear-gradient(to bottom, black, transparent 82%);
  position: absolute;
}

.hero-visual > .lambda-mark {
  left: 50%;
  position: absolute;
  top: 45%;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.orbit {
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  left: 50%;
  position: absolute;
  top: 45%;
  transform: translate(-50%, -50%);
}

.orbit-one {
  height: 390px;
  width: 390px;
}

.orbit-two {
  height: 530px;
  width: 530px;
}

.signal {
  background: var(--lime);
  height: 10px;
  position: absolute;
  width: 10px;
  z-index: 4;
}

.signal-one {
  left: calc(50% - 194px);
  top: 33%;
}

.signal-two {
  right: calc(50% - 265px);
  top: 44%;
}

.signal-three {
  bottom: 20%;
  left: 38%;
}

.visual-label {
  align-items: center;
  bottom: 2rem;
  color: var(--white);
  display: flex;
  font-size: 0.66rem;
  font-weight: 700;
  justify-content: space-between;
  left: 2rem;
  letter-spacing: 0.13em;
  position: absolute;
  right: 2rem;
  text-transform: uppercase;
}

.visual-label strong {
  font-family: Georgia, serif;
  font-size: 1.4rem;
  font-weight: 400;
}

.principle {
  border-bottom: 1px solid var(--line);
  border-top: 1px solid var(--line);
  display: grid;
  gap: 4rem;
  grid-template-columns: 1fr 2.2fr;
  margin: 0 auto;
  max-width: 1440px;
  padding: clamp(5rem, 9vw, 9rem) 4vw;
}

.section-number {
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.12em;
  margin: 0;
  text-transform: uppercase;
}

.principle-copy {
  font-size: clamp(2rem, 4vw, 4.25rem);
  letter-spacing: -0.055em;
  line-height: 1.07;
  margin: 0;
  max-width: 1000px;
}

.product-section {
  background: var(--purple);
  color: var(--white);
  display: grid;
  gap: clamp(4rem, 8vw, 8rem);
  grid-template-columns: minmax(300px, 0.78fr) minmax(470px, 1.22fr);
  margin: 0 auto;
  max-width: 1440px;
  padding: clamp(5rem, 9vw, 9rem) 4vw;
}

.eyebrow-light > span {
  background: var(--lime);
}

.section-intro {
  align-self: center;
}

.section-intro h2 {
  font-size: clamp(3.8rem, 6.8vw, 7rem);
}

.section-intro > p:last-child {
  color: rgba(255, 255, 255, 0.7);
  font-size: 1.1rem;
  line-height: 1.6;
  margin: 2rem 0 0;
  max-width: 470px;
}

.product-card {
  background: var(--lime);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  min-height: 580px;
  padding: clamp(1.5rem, 3vw, 3rem);
  transition: transform 220ms ease;
}

.product-card:hover,
.product-card:focus-visible {
  transform: translateY(-5px);
}

.product-card-top,
.product-card-bottom {
  align-items: center;
  display: flex;
  justify-content: space-between;
}

.product-wordmark {
  font-size: clamp(2rem, 4vw, 4rem);
  font-weight: 780;
  letter-spacing: -0.07em;
}

.product-arrow {
  align-items: center;
  border: 1px solid var(--ink);
  border-radius: 50%;
  display: flex;
  height: 50px;
  justify-content: center;
  width: 50px;
}

.product-arrow .arrow {
  height: 22px;
  width: 22px;
}

.terminal {
  background: var(--ink);
  box-shadow: 12px 12px 0 rgba(67, 45, 115, 0.25);
  color: var(--white);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  margin: auto 0;
}

.terminal-bar {
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  display: flex;
  gap: 0.45rem;
  height: 38px;
  padding: 0 1rem;
}

.terminal-bar span {
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50%;
  height: 8px;
  width: 8px;
}

.terminal-copy {
  font-size: clamp(0.73rem, 1.3vw, 0.95rem);
  line-height: 1.9;
  padding: clamp(1.3rem, 3vw, 2.4rem);
}

.terminal-copy p {
  margin: 0;
  white-space: nowrap;
}

.prompt {
  color: var(--lime);
}

.terminal-muted {
  color: #8d9186;
}

.product-card-bottom {
  border-top: 1px solid rgba(22, 24, 22, 0.35);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.1em;
  padding-top: 1.15rem;
  text-transform: uppercase;
}

.company-section {
  display: grid;
  gap: 5rem;
  grid-template-columns: 1fr 1fr;
  margin: 0 auto;
  max-width: 1440px;
  padding: clamp(5rem, 9vw, 9rem) 4vw;
}

.company-heading h2 {
  font-size: clamp(3.2rem, 5.8vw, 6rem);
  margin-top: 2.6rem;
}

.company-body > p {
  font-size: clamp(1.4rem, 2.5vw, 2.35rem);
  letter-spacing: -0.035em;
  line-height: 1.25;
  margin: 0 0 4.5rem;
}

.company-facts {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto;
  margin: 0;
}

.company-facts dt,
.company-facts dd {
  border-bottom: 1px solid var(--line);
  padding: 1.15rem 0;
}

.company-facts dt {
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 680;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.company-facts dd {
  font-size: 0.9rem;
  font-weight: 680;
  margin: 0;
  text-align: right;
}

.closing {
  align-items: flex-end;
  background: var(--lime);
  display: flex;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1440px;
  padding: clamp(4rem, 8vw, 8rem) 4vw;
}

.closing h2 {
  font-size: clamp(4rem, 8.5vw, 8.5rem);
}

.button-dark {
  background: var(--purple-deep);
  color: var(--white);
  flex: 0 0 auto;
}

.button-dark:hover,
.button-dark:focus-visible {
  background: var(--purple);
  transform: translateY(-2px);
}

footer {
  background: var(--ink);
  color: var(--white);
  display: grid;
  gap: 2.5rem 4rem;
  grid-template-columns: 1.5fr 1fr 0.8fr;
  margin: 0 auto;
  max-width: 1440px;
  padding: clamp(3.5rem, 6vw, 6rem) 4vw 2.5rem;
}

.footer-brand p,
address {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.82rem;
  font-style: normal;
  line-height: 1.65;
}

.footer-brand p {
  margin: 1rem 0 0;
}

.footer-links {
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.footer-links a .arrow {
  height: 1em;
  width: 1em;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.69rem;
  grid-column: 1 / -1;
  letter-spacing: 0.07em;
  margin: 2rem 0 0;
  padding-top: 1.5rem;
  text-transform: uppercase;
}

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

@media (max-width: 980px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    aspect-ratio: 1.4;
    min-height: 520px;
  }

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

  .section-intro > p:last-child {
    max-width: 620px;
  }

  .product-card {
    min-height: 550px;
  }

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

  .company-heading h2 {
    max-width: 720px;
  }

  .closing {
    align-items: flex-start;
    flex-direction: column;
    gap: 3rem;
  }
}

@media (max-width: 680px) {
  .site-header {
    height: 70px;
    padding: 0 1.25rem;
  }

  .header-link {
    font-size: 0.69rem;
  }

  .hero {
    gap: 3.8rem;
    min-height: auto;
    padding: 4.5rem 1.25rem 3.5rem;
  }

  .hero h1 {
    font-size: clamp(2.85rem, 13.8vw, 3.9rem);
  }

  .lede {
    font-size: 1.05rem;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .text-link {
    align-self: flex-start;
  }

  .hero-visual {
    aspect-ratio: 0.9;
    min-height: 440px;
  }

  .hero-visual > .lambda-mark {
    height: 170px;
    width: 170px;
  }

  .orbit-one {
    height: 270px;
    width: 270px;
  }

  .orbit-two {
    height: 380px;
    width: 380px;
  }

  .signal-one {
    left: calc(50% - 134px);
  }

  .signal-two {
    right: calc(50% - 190px);
  }

  .principle {
    gap: 2.5rem;
    grid-template-columns: 1fr;
    padding: 4.5rem 1.25rem;
  }

  .principle-copy {
    font-size: 2rem;
  }

  .product-section,
  .company-section {
    padding: 4.5rem 1.25rem;
  }

  .product-card {
    min-height: 440px;
    padding: 1.2rem;
  }

  .product-wordmark {
    font-size: 2.3rem;
  }

  .terminal-copy {
    font-size: 0.59rem;
    padding: 1.1rem 0.85rem;
  }

  .product-card-bottom {
    font-size: 0.58rem;
  }

  .company-section {
    gap: 3.5rem;
  }

  .company-heading h2 {
    font-size: 3.3rem;
  }

  .company-body > p {
    font-size: 1.5rem;
  }

  .company-facts {
    grid-template-columns: 1fr;
  }

  .company-facts dt {
    border-bottom: 0;
    padding-bottom: 0.3rem;
  }

  .company-facts dd {
    padding-top: 0;
    text-align: left;
  }

  .closing {
    padding: 4.5rem 1.25rem;
  }

  .closing h2 {
    font-size: 3.8rem;
  }

  footer {
    grid-template-columns: 1fr;
    padding: 4rem 1.25rem 2rem;
  }

  .copyright {
    grid-column: 1;
  }
}

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

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