:root {
  color-scheme: dark;
  --black: #050505;
  --near-black: #0A0A0A;
  --graphite: #111111;
  --panel: #151515;
  --line: rgba(255,255,255,0.12);
  --line-strong: rgba(255,255,255,0.24);
  --text: #F4F4F0;
  --text-muted: rgba(244,244,240,0.68);
  --text-soft: rgba(244,244,240,0.46);
  --white: #FFFFFF;
  --shadow: 0 28px 90px rgba(0,0,0,0.48);
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --container: 1180px;
  --gutter: clamp(1rem, 4vw, 3rem);
  --header-height: 72px;
  --radius: 6px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--black);
  scroll-behavior: smooth;
}

section {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 62% 0%, rgba(255,255,255,0.07), transparent 24rem),
    linear-gradient(180deg, var(--near-black), var(--black) 34rem);
  font-family: var(--font-sans);
  line-height: 1.55;
  overflow-x: hidden;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  content: "";
  background-image:
    linear-gradient(rgba(255,255,255,0.032) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.032) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.78), transparent 86%);
  animation: grid-shift 34s linear infinite;
}

body::after {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  background:
    linear-gradient(to bottom, transparent, rgba(5,5,5,0.9) 72%),
    repeating-linear-gradient(0deg, rgba(255,255,255,0.018), rgba(255,255,255,0.018) 1px, transparent 1px, transparent 4px);
}

@keyframes grid-shift {
  from {
    background-position: 0 0, 0 0;
  }

  to {
    background-position: 48px 48px, 48px 48px;
  }
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button {
  font: inherit;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
}

h1,
h2,
h3 {
  margin: 0;
  font-weight: 600;
  letter-spacing: 0;
  line-height: 0.98;
}

h1 {
  width: min(100%, 11ch);
  font-size: clamp(3rem, 7vw, 5.5rem);
}

h2 {
  width: min(100%, 14ch);
  font-size: clamp(2.1rem, 5.2vw, 4.4rem);
}

h3 {
  font-size: clamp(1.05rem, 2vw, 1.32rem);
  line-height: 1.12;
}

p {
  margin: 0;
}

.skip-link {
  position: fixed;
  top: calc(var(--header-height) + 0.75rem);
  right: 0.75rem;
  z-index: 100;
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0.48rem 0.7rem;
  color: var(--black);
  background: var(--text);
  border: 1px solid var(--white);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  opacity: 0.72;
  transition: opacity 180ms ease, transform 180ms ease;
}

.skip-link:hover,
.skip-link:focus {
  opacity: 1;
  transform: translateY(-1px);
}

.nav-open .skip-link {
  opacity: 0;
  pointer-events: none;
}

.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;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  padding: 0.88rem var(--gutter);
  background: rgba(5,5,5,0.72);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(18px);
  transition: border-color 180ms ease, background 180ms ease;
}

.site-header.is-scrolled {
  background: rgba(5,5,5,0.9);
  border-color: var(--line);
}

.brand,
.footer-brand {
  display: inline-flex;
  align-items: center;
}

.nav-toggle {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  padding: 0;
  color: var(--text);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: pointer;
}

.nav-toggle span[aria-hidden="true"] {
  width: 18px;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease;
}

.nav-toggle[aria-expanded="true"] span[aria-hidden="true"]:first-of-type {
  transform: translateY(3px) rotate(34deg);
}

.nav-toggle[aria-expanded="true"] span[aria-hidden="true"]:last-of-type {
  transform: translateY(-3px) rotate(-34deg);
}

.site-nav {
  position: fixed;
  inset: var(--header-height) var(--gutter) auto var(--gutter);
  display: grid;
  gap: 1px;
  padding: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.5rem);
  visibility: hidden;
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-nav.is-open {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
  visibility: visible;
}

.site-nav a {
  min-height: 44px;
  padding: 0.8rem 0.9rem;
  color: var(--text-muted);
  background: rgba(10,10,10,0.96);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav a:hover,
.site-nav a.is-active {
  color: var(--white);
  background: var(--panel);
}

.error-nav {
  display: flex;
  gap: clamp(0.8rem, 3vw, 1.4rem);
  align-items: center;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.error-nav a:hover {
  color: var(--white);
}

.button,
.nav-toggle,
.site-nav a,
a {
  -webkit-tap-highlight-color: transparent;
}

.button:focus-visible,
.nav-toggle:focus-visible,
.site-nav a:focus-visible,
a:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 4px;
}

.section-shell,
.site-footer {
  width: min(100% - (var(--gutter) * 2), var(--container));
  margin-inline: auto;
}

.hero {
  padding: clamp(2rem, 4vw, 4.5rem) 0 clamp(4rem, 9vw, 8rem);
}

.hero-grid {
  display: grid;
  gap: clamp(2rem, 6vw, 4rem);
}

.hero-copy {
  display: grid;
  gap: 1.4rem;
}

.section-marker,
.technical-label,
.card-meta,
.section-index,
.meta-grid,
.signal-row span,
.deployment-item span,
.fact-table dt,
.footer-meta {
  font-family: var(--font-mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-marker,
.technical-label,
.card-meta {
  color: var(--text-soft);
  font-size: 0.72rem;
}

.hero-subhead {
  max-width: 760px;
  color: var(--text-muted);
  font-size: clamp(1.06rem, 2.1vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.25rem;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.82rem 1.05rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-size: 0.88rem;
  font-weight: 600;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  color: var(--black);
  background: var(--text);
  border-color: var(--text);
}

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

.button-secondary {
  color: var(--text);
  background: transparent;
}

.button-secondary:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.06);
}

.hero-meta {
  align-self: end;
}

.meta-grid {
  display: grid;
  gap: 1px;
  margin: 0;
  background: var(--line);
  border: 1px solid var(--line);
}

.meta-grid div {
  display: grid;
  gap: 0.28rem;
  padding: 0.92rem;
  background: rgba(10,10,10,0.78);
}

.meta-grid dt {
  color: var(--text-soft);
  font-size: 0.64rem;
}

.meta-grid dd {
  margin: 0;
  color: var(--text);
  font-size: 0.72rem;
}

.hero-visual {
  position: relative;
  margin: clamp(2rem, 5vw, 4rem) 0 0;
  padding: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.055), rgba(255,255,255,0.018));
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-visual::before {
  position: absolute;
  inset: 1px;
  pointer-events: none;
  content: "";
  border: 1px solid rgba(255,255,255,0.05);
}

.indexed-section {
  display: grid;
  gap: clamp(1.5rem, 5vw, 4.5rem);
  padding: clamp(4.5rem, 11vw, 9rem) 0;
  border-top: 1px solid var(--line);
}

.section-index {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  align-self: start;
  color: var(--text-soft);
  font-size: 0.72rem;
}

.section-index::after {
  flex: 1;
  height: 1px;
  content: "";
  background: var(--line);
}

.section-body {
  display: grid;
  gap: 1.25rem;
}

.section-body > p:not(.technical-label) {
  max-width: 760px;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.signal-row,
.pillar-grid,
.deployment-list,
.fact-table {
  display: grid;
  gap: 1px;
  margin-top: clamp(1rem, 3vw, 2rem);
  background: var(--line);
  border: 1px solid var(--line);
}

.signal-row article,
.tech-card,
.deployment-item,
.fact-table div {
  background: rgba(10,10,10,0.88);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.035);
}

.signal-row article,
.tech-card {
  min-height: 230px;
  padding: clamp(1.05rem, 3.2vw, 1.6rem);
}

.signal-row span,
.deployment-item span {
  display: inline-flex;
  width: 2rem;
  height: 2rem;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--line);
  font-size: 0.68rem;
}

.signal-row h3,
.tech-card h3,
.deployment-item h3 {
  margin-top: 2.2rem;
}

.signal-row p,
.tech-card p:not(.card-meta),
.deployment-item p {
  margin-top: 0.85rem;
  color: var(--text-muted);
}

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

.tech-card {
  display: flex;
  flex-direction: column;
}

.tech-card .card-meta {
  margin-bottom: auto;
}

.deployment-list {
  background: transparent;
  border-right: 0;
  border-left: 0;
}

.deployment-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.9rem 1.2rem;
  align-items: start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--line);
}

.deployment-item:first-child {
  border-top: 1px solid var(--line);
}

.deployment-item h3,
.deployment-item p {
  margin-top: 0;
}

.deployment-item p {
  grid-column: 1 / -1;
}

.fact-table div {
  display: grid;
  gap: 0.35rem;
  padding: 1rem;
}

.fact-table dt {
  color: var(--text-soft);
  font-size: 0.68rem;
}

.fact-table dd {
  margin: 0;
  color: var(--text);
}

.contact-section {
  padding: clamp(4rem, 9vw, 8rem) 0;
  border-top: 1px solid var(--line);
}

.contact-panel {
  display: grid;
  gap: 1.2rem;
  padding: clamp(1.25rem, 4vw, 2rem);
  background: var(--graphite);
  border: 1px solid var(--line);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.045);
}

.contact-panel h2 {
  max-width: 15ch;
}

.contact-panel > p:not(.section-marker):not(.technical-label) {
  max-width: 660px;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.contact-panel .button {
  justify-self: start;
  margin-top: 0.5rem;
}

.error-page {
  min-height: 100vh;
}

.error-main {
  display: grid;
  min-height: calc(100vh - var(--header-height));
  align-items: center;
  padding: clamp(4rem, 10vw, 7rem) 0;
}

.error-shell {
  display: grid;
  gap: 1.25rem;
  padding-top: clamp(2rem, 5vw, 4rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.error-shell h1 {
  width: min(100%, 12ch);
}

.error-shell p:not(.section-marker) {
  max-width: 42rem;
  color: var(--text-muted);
  font-size: clamp(1rem, 2vw, 1.18rem);
}

.error-shell .button {
  justify-self: start;
  margin-top: 0.5rem;
}

.site-footer {
  display: grid;
  gap: 1.4rem;
  padding: 2rem 0;
  color: var(--text-muted);
  border-top: 1px solid var(--line);
}

.site-footer p {
  margin-top: 0.6rem;
}

.footer-meta {
  display: grid;
  gap: 0.45rem;
  color: var(--text-soft);
  font-size: 0.68rem;
}

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

.reveal-ready .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 680ms ease, transform 680ms ease;
}

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

@media (min-width: 680px) {
  .meta-grid,
  .signal-row,
  .fact-table {
    grid-template-columns: repeat(3, 1fr);
  }

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

  .pillar-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .deployment-item {
    grid-template-columns: 2rem minmax(12rem, 0.55fr) minmax(0, 1fr);
    align-items: center;
  }

  .deployment-item p {
    grid-column: auto;
  }
}

@media (min-width: 920px) {
  .nav-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    gap: 0.15rem;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    opacity: 1;
    pointer-events: auto;
    transform: none;
    visibility: visible;
  }

  .site-nav a {
    min-height: auto;
    padding: 0.48rem 0.55rem;
    background: transparent;
  }

  .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(14rem, 18rem);
    align-items: end;
  }

  .indexed-section {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.82fr);
    align-items: end;
  }

  .hero-meta,
  .section-body {
    grid-column: 2;
  }

  .hero-copy,
  .section-index {
    grid-column: 1;
  }

  .section-index {
    position: sticky;
    top: calc(var(--header-height) + 2rem);
  }

  .indexed-section {
    align-items: start;
  }

  .section-body {
    grid-column: 2 / 3;
  }

  .site-footer {
    grid-template-columns: 1fr auto;
    align-items: end;
  }
}

@media (min-width: 1120px) {
  .tech-card {
    min-height: 260px;
  }
}

@media (max-width: 460px) {
  .button,
  .hero-actions {
    width: 100%;
  }

  h1 {
    font-size: clamp(2.85rem, 13vw, 3.8rem);
  }

  .hero {
    padding-top: 2.25rem;
  }

  .signal-row article,
  .tech-card {
    min-height: 210px;
  }
}

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

  body::before {
    animation: none;
  }

  .reveal-ready .reveal,
  .reveal {
    opacity: 1;
    transform: none;
  }
}