:root {
  color-scheme: light;
  --ink: #11120f;
  --ink-2: #2e302b;
  --muted: #65685f;
  --line: #d8d5cb;
  --paper: #f7f5ef;
  --panel: #ffffff;
  --field: #f0eee7;
  --accent: #b8ff5c;
  --accent-2: #2357ff;
  --research: #4f3fc4;
  --warning: #724100;
  --radius: 8px;
  --max: 1180px;
  --font: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.55;
}

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

a:hover {
  text-decoration: underline;
  text-underline-offset: 0.2em;
}

:focus-visible {
  outline: 3px solid var(--accent-2);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 10;
  transform: translateY(-140%);
  background: var(--ink);
  color: var(--paper);
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.header-inner,
.section,
.footer-grid {
  width: min(calc(100% - 2rem), var(--max));
  margin-inline: auto;
}

.header-inner {
  min-height: 72px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 760;
  letter-spacing: 0.08em;
}

.brand-mark {
  width: 1.55rem;
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  display: inline-block;
  position: relative;
}

.brand-mark::after {
  content: "";
  position: absolute;
  width: 50%;
  height: 2px;
  background: var(--accent);
  right: -2px;
  top: 50%;
}

.site-nav {
  display: flex;
  justify-content: center;
  gap: 1.45rem;
}

.site-nav a,
.header-cta {
  font-size: 0.91rem;
  color: var(--ink-2);
}

.site-nav a[aria-current="page"] {
  color: var(--ink);
  font-weight: 700;
}

.header-cta {
  justify-self: end;
  border: 1px solid var(--ink);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius);
}

.menu-button {
  display: none;
}

.section {
  padding-block: clamp(4rem, 8vw, 7.5rem);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.72fr);
  gap: clamp(2rem, 6vw, 6rem);
  align-items: center;
  border-bottom: 1px solid var(--line);
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  margin: 0 0 1.1rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 760;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

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

h1,
h2,
h3 {
  line-height: 1.02;
  letter-spacing: 0;
}

h1 {
  max-width: 12.8ch;
  margin-bottom: 1.35rem;
  font-size: clamp(3.4rem, 10vw, 8.8rem);
  font-weight: 820;
  overflow-wrap: normal;
}

h2 {
  font-size: clamp(2rem, 4vw, 4.25rem);
  font-weight: 780;
}

h3 {
  font-size: 1.2rem;
}

.lede {
  max-width: 690px;
  color: var(--ink-2);
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  padding: 0.78rem 1rem;
  font-weight: 720;
  line-height: 1;
}

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

.button.secondary {
  border: 1px solid var(--line);
  background: var(--panel);
}

.system-graphic {
  min-height: 520px;
  position: relative;
  overflow: hidden;
  border-left: 1px solid var(--line);
}

.rail,
.plane,
.node {
  position: absolute;
}

.rail {
  background: var(--line);
  transform-origin: left;
}

.rail-a {
  width: 92%;
  height: 1px;
  top: 32%;
  left: 4%;
}

.rail-b {
  width: 70%;
  height: 1px;
  top: 60%;
  left: 18%;
  transform: rotate(-18deg);
}

.rail-c {
  width: 1px;
  height: 82%;
  top: 8%;
  left: 44%;
}

.node {
  width: 12px;
  aspect-ratio: 1;
  border: 2px solid var(--ink);
  background: var(--paper);
}

.node-a {
  top: 30%;
  left: 43%;
}

.node-b {
  top: 58%;
  left: 70%;
}

.node-c {
  top: 14%;
  left: 77%;
}

.plane {
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--paper) 86%, white);
}

.plane-a {
  width: 46%;
  height: 24%;
  top: 10%;
  right: 5%;
}

.plane-b {
  width: 58%;
  height: 30%;
  bottom: 11%;
  left: 10%;
  background:
    linear-gradient(90deg, transparent 0 24%, var(--line) 24% 25%, transparent 25%),
    linear-gradient(0deg, transparent 0 49%, var(--line) 49% 50%, transparent 50%);
}

.statement {
  padding-block: clamp(3rem, 7vw, 6rem);
}

.statement p {
  max-width: 960px;
  font-size: clamp(1.65rem, 4vw, 4rem);
  line-height: 1.08;
  font-weight: 730;
}

.split,
.product-band,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2rem, 6vw, 5.5rem);
  border-top: 1px solid var(--line);
}

.text-stack {
  color: var(--ink-2);
  font-size: 1.08rem;
}

.section-heading {
  max-width: 850px;
  margin-bottom: clamp(2rem, 4vw, 3.5rem);
}

.capability-section,
.principles,
.product-list {
  border-top: 1px solid var(--line);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.capability-item {
  min-height: 260px;
  padding: 1.35rem;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  opacity: 1;
  transform: none;
}

.capability-item[data-visible="true"],
.product-row[data-visible="true"],
.principle[data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 420ms ease, transform 420ms ease;
}

.capability-item p,
.product-row p,
.product-band p,
.footer-grid p,
.principle h3,
.contact-layout p {
  color: var(--ink-2);
}

.product-band {
  align-items: start;
  background: var(--ink);
  color: var(--paper);
  width: 100%;
  max-width: none;
  padding-inline: max(1rem, calc((100% - var(--max)) / 2));
}

.product-band .eyebrow,
.product-band p {
  color: color-mix(in srgb, var(--paper) 76%, transparent);
}

.product-status {
  border-top: 1px solid color-mix(in srgb, var(--paper) 22%, transparent);
  padding-top: 1.25rem;
}

.status {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  margin-bottom: 0.85rem;
  border: 1px solid currentColor;
  border-radius: 999px;
  padding: 0.28rem 0.68rem;
  font-size: 0.8rem;
  font-weight: 760;
}

.available {
  color: #327100;
}

.early-access {
  color: var(--accent-2);
}

.in-development {
  color: #704fc9;
}

.research {
  color: var(--research);
}

.coming-later {
  color: var(--warning);
}

.product-band .available {
  color: var(--accent);
}

.text-link {
  display: inline-flex;
  margin-top: 0.7rem;
  font-weight: 760;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.principle {
  min-height: 180px;
  background: var(--paper);
  padding: 1.25rem;
  opacity: 1;
  transform: none;
}

.principle span {
  display: block;
  width: 2rem;
  height: 2rem;
  margin-bottom: 2.5rem;
  border: 1px solid var(--ink);
}

.product-table {
  border-top: 1px solid var(--line);
}

.product-row {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 2rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  opacity: 1;
  transform: none;
}

.contact-form {
  display: grid;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

label {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 720;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--field);
  color: var(--ink);
  padding: 0.85rem;
  font: inherit;
}

textarea {
  resize: vertical;
}

.form-note {
  min-height: 1.5rem;
  margin: 0;
  font-size: 0.95rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) auto minmax(220px, 0.8fr);
  gap: 2rem;
}

.footer-brand {
  margin-bottom: 1rem;
}

.site-footer nav {
  display: grid;
  gap: 0.5rem;
}

.footer-meta {
  display: grid;
  align-content: start;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: auto auto;
  }

  .menu-button {
    justify-self: end;
    width: 44px;
    height: 44px;
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
  }

  .menu-icon,
  .menu-icon::before,
  .menu-icon::after {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--ink);
    content: "";
  }

  .menu-icon::before {
    transform: translateY(-6px);
  }

  .menu-icon::after {
    transform: translateY(4px);
  }

  .site-nav {
    grid-column: 1 / -1;
    display: none;
    justify-content: start;
    flex-wrap: wrap;
    padding-bottom: 1rem;
  }

  .site-nav[data-open] {
    display: flex;
  }

  .header-cta {
    display: none;
  }

  .hero,
  .split,
  .product-band,
  .contact-layout,
  .product-row,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 4rem;
  }

  .system-graphic {
    min-height: 300px;
    border-left: 0;
    border-top: 1px solid var(--line);
  }

  .capability-grid,
  .principle-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .header-inner,
  .section,
  .footer-grid {
    width: min(calc(100% - 1.25rem), var(--max));
  }

  .section {
    padding-block: 3.25rem;
  }

  .brand {
    font-size: 0.9rem;
  }

  h1 {
    max-width: 100%;
    font-size: clamp(2.35rem, 13vw, 3.55rem);
    overflow-wrap: break-word;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .capability-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .capability-item,
  .principle {
    min-height: 0;
  }
}

@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;
  }

  .capability-item,
  .product-row,
  .principle {
    opacity: 1;
    transform: none;
  }
}