:root {
  --ink: #1a1a18;
  --slate: #4a5a5a;
  --sage: #7a8d86;
  --mist: #c8d4cd;
  --blush: #e9ddd2;
  --paper: #f8f7f3;
  --line: rgba(26, 26, 24, 0.16);
  --wrap: min(1200px, calc(100% - 48px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}

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

a:focus-visible {
  outline: 2px solid var(--ink);
  outline-offset: 5px;
}

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

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

.wrap {
  width: var(--wrap);
  margin-inline: auto;
}

.site-header {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(248, 247, 243, 0.94);
}

.header-inner,
.footer-inner {
  display: flex;
  min-height: 84px;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid currentColor;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: -0.08em;
}

nav {
  display: flex;
  align-items: center;
  gap: clamp(20px, 4vw, 50px);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

nav a:not(.nav-cta) {
  border-bottom: 1px solid transparent;
}

nav a:not(.nav-cta):hover {
  border-color: currentColor;
}

.nav-cta {
  padding: 11px 14px;
  border: 1px solid var(--ink);
  transition: background-color 160ms ease, color 160ms ease;
}

.nav-cta:hover {
  background: var(--ink);
  color: var(--paper);
}

.hero {
  min-height: calc(100vh - 85px);
  min-height: calc(100svh - 85px);
  display: flex;
  flex-direction: column;
  background-image: linear-gradient(to right, rgba(26, 26, 24, 0.045) 1px, transparent 1px);
  background-size: max(7.5vw, 76px) 100%;
}

.hero-grid {
  display: grid;
  flex: 1;
  grid-template-columns: minmax(0, 1.4fr) minmax(320px, 0.6fr);
  gap: clamp(60px, 8vw, 120px);
  align-items: center;
  padding-block: clamp(76px, 10vw, 140px) 72px;
}

.hero-copy {
  max-width: 810px;
}

.eyebrow,
.section-label,
.system-head,
.pillar-number,
.pillar-tag {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.09em;
  line-height: 1.4;
  text-transform: uppercase;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 14px;
}

.eyebrow::before {
  width: 30px;
  height: 1px;
  background: currentColor;
  content: "";
}

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

h1 {
  margin: 30px 0 34px;
  font-size: clamp(58px, 7.4vw, 112px);
  font-weight: 500;
  letter-spacing: -0.075em;
  line-height: 0.88;
}

em {
  font-family: "Instrument Serif", Georgia, serif;
  font-weight: 400;
}

.hero-intro {
  max-width: 620px;
  margin-bottom: 34px;
  color: var(--slate);
  font-size: clamp(16px, 1.45vw, 20px);
  line-height: 1.55;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  min-width: 238px;
  padding: 15px 17px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background-color 160ms ease, color 160ms ease;
}

.button:hover {
  background: transparent;
  color: var(--ink);
}

.hero-system {
  align-self: stretch;
  max-height: 650px;
  min-height: 510px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid var(--line);
  background: rgba(200, 212, 205, 0.22);
}

.system-head {
  display: flex;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.system-core {
  position: relative;
  display: grid;
  min-height: 280px;
  place-items: center;
  overflow: hidden;
}

.system-core::before,
.system-core::after {
  position: absolute;
  background: var(--line);
  content: "";
}

.system-core::before {
  width: 1px;
  height: 100%;
}

.system-core::after {
  width: 100%;
  height: 1px;
}

.orbit {
  position: absolute;
  border: 1px solid var(--sage);
  border-radius: 50%;
}

.orbit-one {
  width: 220px;
  height: 220px;
}

.orbit-two {
  width: 154px;
  height: 154px;
  border-color: var(--slate);
}

.core-label {
  position: relative;
  z-index: 1;
  display: grid;
  width: 94px;
  height: 94px;
  place-content: center;
  border: 1px solid var(--ink);
  background: var(--paper);
  text-align: center;
}

.core-label span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.core-label strong {
  font-family: "Instrument Serif", Georgia, serif;
  font-size: 22px;
  font-style: italic;
  font-weight: 400;
}

.system-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.system-list li {
  display: grid;
  grid-template-columns: 48px 1fr;
  padding: 12px 16px;
  border-bottom: 1px solid var(--line);
  font-size: 12px;
}

.system-list li:last-child {
  border-bottom: 0;
}

.system-list span {
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
}

.hero-foot {
  display: flex;
  justify-content: space-between;
  padding-block: 14px;
  border-top: 1px solid var(--line);
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.belief {
  padding-block: clamp(90px, 12vw, 170px);
  background: var(--blush);
}

.belief-grid {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 40px;
}

.section-label {
  display: flex;
  justify-content: space-between;
  max-width: 250px;
  padding-top: 12px;
  border-top: 1px solid currentColor;
}

.belief h2,
.section-heading h2,
.about h2,
.closing h2 {
  max-width: 900px;
  margin-bottom: 34px;
  font-size: clamp(44px, 6.1vw, 88px);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.98;
}

.belief p:not(.section-label) {
  max-width: 660px;
  margin: 0 0 0 auto;
  color: var(--slate);
  font-size: clamp(18px, 2vw, 25px);
  line-height: 1.5;
}

.principles {
  padding-block: clamp(90px, 12vw, 160px);
}

.section-heading {
  display: grid;
  grid-template-columns: 1fr 3fr;
  gap: 40px;
  margin-bottom: 80px;
}

.section-heading h2 {
  margin: 0;
}

.pillar-list {
  border-top: 1px solid var(--ink);
}

.pillar {
  display: grid;
  grid-template-columns: 1fr 2fr 1fr;
  gap: 40px;
  align-items: start;
  padding-block: clamp(34px, 5vw, 62px);
  border-bottom: 1px solid var(--line);
}

.pillar-number {
  width: 42px;
  padding-bottom: 8px;
  border-bottom: 1px solid currentColor;
}

.pillar h3 {
  margin-bottom: 18px;
  font-size: clamp(30px, 3.6vw, 50px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 1;
}

.pillar-copy p {
  max-width: 560px;
  margin: 0;
  color: var(--slate);
}

.pillar-tag {
  justify-self: end;
  padding-top: 10px;
  color: var(--sage);
  text-align: right;
}

.about {
  padding-block: clamp(90px, 12vw, 160px);
  background: var(--mist);
}

.about-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: clamp(60px, 11vw, 150px);
}

.about h2 {
  margin: 65px 0 0;
}

.about-copy {
  padding-top: 10px;
}

.about-copy > p {
  margin-bottom: 28px;
  font-size: 17px;
  line-height: 1.75;
}

.status {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-top: 56px;
  padding: 20px 0;
  border-block: 1px solid rgba(26, 26, 24, 0.2);
}

.status p {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  font-size: 10px;
  line-height: 1.7;
  text-transform: uppercase;
}

.status-dot {
  width: 7px;
  height: 7px;
  flex: none;
  margin-top: 5px;
  border-radius: 50%;
  background: var(--slate);
  box-shadow: 0 0 0 4px rgba(74, 90, 90, 0.15);
}

.closing {
  padding-block: clamp(100px, 14vw, 190px);
  background-color: var(--ink);
  background-image: linear-gradient(rgba(248, 247, 243, 0.05) 1px, transparent 1px), linear-gradient(90deg, rgba(248, 247, 243, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  color: var(--paper);
  text-align: center;
}

.closing-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.closing .eyebrow {
  margin-bottom: 60px;
}

.closing h2 {
  max-width: 1040px;
}

.button-light {
  margin-top: 26px;
  border-color: var(--paper);
  background: var(--paper);
  color: var(--ink);
}

.button-light:hover {
  background: transparent;
  color: var(--paper);
}

footer {
  background: var(--ink);
  color: var(--paper);
}

.footer-inner {
  min-height: 130px;
  border-top: 1px solid rgba(248, 247, 243, 0.2);
  font-family: "IBM Plex Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.footer-inner p {
  margin: 0;
}

.footer-inner > a:last-child {
  border-bottom: 1px solid rgba(248, 247, 243, 0.6);
}

.brand-footer {
  font-family: "Inter", Arial, sans-serif;
  font-size: 13px;
  text-transform: none;
}

@media (max-width: 860px) {
  :root {
    --wrap: min(100% - 36px, 700px);
  }

  .header-inner {
    min-height: 72px;
  }

  nav a:not(.nav-cta) {
    display: none;
  }

  .hero {
    min-height: auto;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 70px;
    padding-block: 70px;
  }

  .hero-system {
    min-height: 470px;
  }

  .belief-grid,
  .section-heading,
  .about-grid {
    grid-template-columns: 1fr;
    gap: 55px;
  }

  .section-label {
    max-width: none;
  }

  .belief p:not(.section-label) {
    margin-left: 0;
  }

  .pillar {
    grid-template-columns: 60px 1fr;
  }

  .pillar-tag {
    grid-column: 2;
    justify-self: start;
    text-align: left;
  }

  .about h2 {
    margin-top: 45px;
  }

  .footer-inner {
    flex-wrap: wrap;
    align-content: center;
    padding-block: 30px;
  }
}

@media (max-width: 560px) {
  :root {
    --wrap: calc(100% - 28px);
  }

  .brand > span:last-child {
    display: none;
  }

  .brand-footer > span:last-child {
    display: inline;
  }

  h1 {
    font-size: clamp(49px, 16vw, 76px);
  }

  .hero-grid {
    padding-block: 58px;
  }

  .hero-foot span:last-child {
    display: none;
  }

  .hero-system {
    min-height: 430px;
  }

  .belief h2,
  .section-heading h2,
  .about h2,
  .closing h2 {
    font-size: clamp(40px, 13vw, 62px);
  }

  .section-heading {
    margin-bottom: 50px;
  }

  .pillar {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .pillar-tag {
    grid-column: 1;
  }

  .closing .eyebrow {
    margin-bottom: 44px;
  }

  .button {
    width: 100%;
  }

  .footer-inner {
    display: grid;
    justify-items: start;
    gap: 20px;
  }
}

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

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

@media print {
  .site-header,
  .hero-foot,
  .closing,
  footer {
    display: none;
  }

  .hero {
    min-height: 0;
  }
}