:root {
  color-scheme: light;
  --ink: #050505;
  --muted: #6b6b6b;
  --soft: #d9d9d9;
  --line: #e8e8e8;
  --paper: #fbfbfa;
  --paper-warm: #f5f4f1;
  --cool: #e9f0f1;
  --accent: #6c817e;
  --header-height: 94px;
  --font-primary:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-secondary:
    "Avenir Next", Avenir, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --weight-ui: 600;
  --weight-ui-strong: 650;
  font-family:
    var(--font-primary);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 70% 18%, rgba(233, 240, 241, 0.72), transparent 28rem),
    linear-gradient(140deg, var(--paper), #fff 47%, var(--paper-warm));
  overflow-x: hidden;
}

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

button {
  font: inherit;
}

.field-canvas,
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.field-canvas {
  z-index: 0;
}

.grain {
  z-index: 1;
  opacity: 0.24;
  background-image:
    linear-gradient(rgba(5, 5, 5, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(5, 5, 5, 0.018) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(to bottom, transparent, #000 16%, #000 78%, transparent);
}

.site-header {
  position: fixed;
  z-index: 5;
  top: 0;
  left: 0;
  right: 0;
  min-height: var(--header-height);
  display: grid;
  grid-template-columns: minmax(220px, 1fr) auto minmax(220px, 1fr);
  align-items: center;
  gap: 2rem;
  padding: 1.6rem clamp(1.2rem, 3vw, 3.8rem);
  mix-blend-mode: multiply;
}

.brand,
.primary-nav,
.header-actions {
  display: flex;
  align-items: center;
}

.brand {
  width: max-content;
  gap: 0.72rem;
  font-family: var(--font-secondary);
  font-size: clamp(0.78rem, 0.78vw, 0.96rem);
  font-weight: var(--weight-ui);
  text-transform: uppercase;
  white-space: nowrap;
}

.brand-mark {
  position: relative;
  width: 3rem;
  height: 3rem;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 0.14rem;
  border: 1px solid rgba(5, 5, 5, 0.12);
  border-radius: 50%;
  transform: rotate(38deg) scaleX(0.62);
}

.brand-mark::after {
  inset: 0.32rem;
  transform: rotate(-16deg) scaleX(1.55);
}

.brand-mark span {
  width: 0.86rem;
  height: 0.86rem;
  border-radius: 50%;
  background: var(--ink);
  box-shadow:
    0 0 0.7rem rgba(5, 5, 5, 0.36),
    0 0 2.2rem rgba(5, 5, 5, 0.12);
}

.primary-nav {
  justify-content: center;
  gap: clamp(1.35rem, 3.4vw, 4rem);
  font-family: var(--font-secondary);
  font-size: clamp(0.66rem, 0.7vw, 0.8rem);
  font-weight: var(--weight-ui);
  text-transform: uppercase;
}

.primary-nav a {
  position: relative;
}

.primary-nav a::after,
.explore-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.38rem;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.primary-nav a:hover::after,
.primary-nav a.is-active::after,
.explore-link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header-actions {
  justify-content: flex-end;
  gap: clamp(1rem, 2.4vw, 2.6rem);
  font-family: var(--font-secondary);
  font-size: clamp(0.66rem, 0.7vw, 0.8rem);
  font-weight: var(--weight-ui);
  text-transform: uppercase;
}

.menu-button {
  width: 2rem;
  height: 1.3rem;
  border: 0;
  padding: 0;
  display: grid;
  gap: 0.38rem;
  align-content: center;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.menu-button span {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

body.menu-open .menu-button span:first-child {
  transform: translateY(0.25rem) rotate(26deg);
}

body.menu-open .menu-button span:last-child {
  transform: translateY(-0.25rem) rotate(-26deg);
}

.menu-panel {
  position: fixed;
  z-index: 4;
  top: var(--header-height);
  right: clamp(1.2rem, 3vw, 3.8rem);
  width: min(20rem, calc(100vw - 2.4rem));
  display: grid;
  gap: 0;
  border: 1px solid rgba(5, 5, 5, 0.16);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(22px);
  opacity: 0;
  transform: translateY(-0.7rem);
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
}

.menu-panel a {
  padding: 1rem 1.1rem;
  border-bottom: 1px solid rgba(5, 5, 5, 0.1);
  font-family: var(--font-secondary);
  font-size: 0.78rem;
  font-weight: var(--weight-ui);
  text-transform: uppercase;
}

.menu-panel a:last-child {
  border-bottom: 0;
}

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

main {
  position: relative;
  z-index: 2;
}

.hero {
  position: relative;
  min-height: 88svh;
  display: grid;
  align-items: center;
  overflow: hidden;
  padding:
    calc(var(--header-height) + 3.5rem) clamp(1.25rem, 5vw, 5.8rem)
    clamp(3.2rem, 7vh, 5.5rem);
}

.hero-copy {
  width: min(72rem, 74vw);
}

.micro-label {
  position: relative;
  width: max-content;
  max-width: 100%;
  margin: 0 0 clamp(3.4rem, 9vh, 7.1rem);
  padding-top: 2rem;
  color: #1b1b1b;
  font-family: var(--font-secondary);
  font-size: clamp(0.72rem, 0.78vw, 0.88rem);
  font-weight: var(--weight-ui);
  line-height: 1.62;
  text-transform: uppercase;
}

.micro-label::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3.4rem;
  height: 2px;
  background: var(--ink);
}

h1,
.research-title {
  margin: 0;
  font-size: clamp(3rem, 6.7vw, 8.9rem);
  font-weight: 100;
  line-height: 0.95;
  letter-spacing: 0;
  max-width: 78rem;
}

h1 span,
.research-title span {
  display: block;
}

.explore-link {
  position: relative;
  width: max-content;
  max-width: 100%;
  display: inline-flex;
  align-items: center;
  gap: 2.4rem;
  margin-top: clamp(2.4rem, 5vh, 4rem);
  padding-bottom: 0.42rem;
  border-bottom: 1px solid rgba(5, 5, 5, 0.28);
  font-family: var(--font-secondary);
  font-size: clamp(0.72rem, 0.78vw, 0.88rem);
  font-weight: var(--weight-ui-strong);
  text-transform: uppercase;
}

.explore-link span:last-child {
  font-size: 1.2rem;
  transform: translateY(-0.04rem);
}

.singularity-stage {
  position: absolute;
  z-index: -1;
  right: clamp(6rem, 12vw, 13rem);
  bottom: clamp(4.5rem, 10vh, 8rem);
  width: clamp(9rem, 16vw, 18rem);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.singularity-core {
  width: 42%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: #000;
  filter: blur(1.4px);
  box-shadow:
    0 0 0.4rem rgba(0, 0, 0, 0.96),
    0.2rem 0.5rem 2.3rem rgba(0, 0, 0, 0.42),
    4.6rem 1.6rem 2.4rem rgba(0, 0, 0, 0.18);
  animation: breathe 4.8s ease-in-out infinite;
}

.orbit {
  position: absolute;
  width: 72%;
  aspect-ratio: 1;
  border: 1px solid rgba(5, 5, 5, 0.1);
  border-radius: 50%;
  transform: rotate(-12deg) scaleX(1.9);
}

.orbit-two {
  width: 96%;
  opacity: 0.52;
  transform: rotate(18deg) scaleX(2.5);
}

.hero-index {
  position: absolute;
  right: clamp(1.8rem, 4.1vw, 4.7rem);
  top: 61%;
  display: grid;
  gap: 0.74rem;
}

.hero-index span {
  width: 0.42rem;
  height: 0.42rem;
  border-radius: 50%;
  background: #c7c7c7;
}

.hero-index .active {
  background: var(--ink);
}

.vertical-script {
  position: absolute;
  right: clamp(1.65rem, 3.7vw, 4.35rem);
  bottom: clamp(2rem, 8vh, 7rem);
  margin: 0;
  writing-mode: vertical-rl;
  font-family: "Hiragino Mincho ProN", "Yu Mincho", serif;
  font-size: clamp(0.78rem, 0.9vw, 1rem);
  line-height: 1.8;
}

.signal-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(8rem, 0.6fr) minmax(18rem, 1.1fr) minmax(22rem, 1.7fr);
  gap: clamp(1.6rem, 3vw, 4rem);
  padding: clamp(3.2rem, 7vw, 6rem) clamp(1.25rem, 5vw, 5.8rem) clamp(4rem, 9vw, 7.5rem);
  border-top: 1px solid rgba(5, 5, 5, 0.1);
  background: rgba(255, 255, 255, 0.56);
  backdrop-filter: blur(18px);
}

.section-label {
  color: var(--accent);
  font-family: var(--font-secondary);
  font-size: 0.78rem;
  font-weight: var(--weight-ui-strong);
  text-transform: uppercase;
}

.section-copy h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.7vw, 3.6rem);
  font-weight: 200;
  line-height: 1.05;
}

.section-copy p {
  max-width: 35rem;
  margin: 1.4rem 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1vw, 1.12rem);
  line-height: 1.7;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: rgba(5, 5, 5, 0.12);
  border: 1px solid rgba(5, 5, 5, 0.12);
}

.signal-grid article {
  min-height: 15rem;
  padding: clamp(1.1rem, 2vw, 1.8rem);
  background: rgba(255, 255, 255, 0.72);
}

.signal-grid span {
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: var(--weight-ui-strong);
}

.signal-grid h3 {
  margin: 3.8rem 0 0.9rem;
  font-size: clamp(1rem, 1.3vw, 1.45rem);
  font-weight: 500;
}

.signal-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.58;
}

.research-page {
  background:
    radial-gradient(circle at 78% 34%, rgba(209, 220, 217, 0.92), transparent 22rem),
    radial-gradient(circle at 82% 68%, rgba(231, 236, 221, 0.74), transparent 18rem),
    radial-gradient(circle at 22% 85%, rgba(245, 244, 241, 0.92), transparent 28rem),
    linear-gradient(135deg, #fbfbfa, #fff 58%, #f2f6f5);
}

.launch-hero {
  position: relative;
  min-height: 70svh;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  align-items: center;
  overflow: hidden;
  padding:
    calc(var(--header-height) + 1rem) clamp(1.25rem, 5vw, 5.8rem)
    clamp(1rem, 3.2vh, 2.4rem);
}

.launch-hero::after {
  content: "";
  position: absolute;
  left: clamp(1.25rem, 5vw, 5.8rem);
  right: clamp(1.25rem, 5vw, 5.8rem);
  bottom: 0;
  height: 1px;
  background: rgba(5, 5, 5, 0.1);
}

.launch-copy {
  position: relative;
  z-index: 2;
  max-width: 84rem;
}

.launch-title {
  max-width: 78rem;
  font-size: clamp(4.8rem, 10.8vw, 14rem);
  line-height: 0.86;
}

.research-hero {
  position: relative;
  min-height: 86svh;
  display: grid;
  grid-template-columns: minmax(22rem, 1.08fr) minmax(21rem, 0.92fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 6rem);
  overflow: hidden;
  padding:
    clamp(4.25rem, 9vh, 6.5rem) clamp(1.25rem, 5vw, 5.8rem)
    clamp(1rem, 2.8vh, 2.2rem);
}

.research-copy {
  max-width: 66rem;
}

.research-title {
  font-size: clamp(3.2rem, 5.8vw, 7.2rem);
}

.research-page .micro-label {
  margin-bottom: clamp(1.7rem, 4vh, 3rem);
}

.research-deck {
  max-width: 42rem;
  margin: clamp(1rem, 2vh, 1.6rem) 0 0;
  color: #242424;
  font-size: clamp(1rem, 1.25vw, 1.35rem);
  line-height: 1.6;
}

.research-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem 2rem;
  margin-top: clamp(1.15rem, 2.2vh, 1.8rem);
}

.research-actions .explore-link {
  margin-top: 0;
}

.quiet-link {
  position: relative;
  color: var(--accent);
  font-family: var(--font-secondary);
  font-size: clamp(0.72rem, 0.78vw, 0.88rem);
  font-weight: var(--weight-ui-strong);
  text-transform: uppercase;
}

.quiet-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -0.38rem;
  height: 1px;
  background: currentColor;
}

.hero-proof {
  width: min(100%, 42rem);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(1rem, 2.2vh, 1.7rem);
  border: 1px solid rgba(5, 5, 5, 0.12);
  background: rgba(5, 5, 5, 0.12);
}

.hero-proof span {
  min-height: 3.2rem;
  display: grid;
  place-items: center;
  padding: 0.8rem;
  background: rgba(255, 255, 255, 0.74);
  color: #171717;
  font-family: var(--font-secondary);
  font-size: clamp(0.72rem, 0.82vw, 0.9rem);
  font-weight: var(--weight-ui);
  text-align: center;
  text-transform: uppercase;
}

.research-loop {
  position: relative;
  width: min(34vw, 31rem);
  min-width: 22rem;
  aspect-ratio: 1;
  margin-inline: auto;
  border: 1px solid rgba(5, 5, 5, 0.12);
  border-radius: 50%;
  background:
    radial-gradient(circle, rgba(255, 255, 255, 0.92) 0 19%, transparent 20%),
    conic-gradient(from -35deg, rgba(5, 5, 5, 0.08), transparent 26%, rgba(108, 129, 126, 0.28), transparent 56%, rgba(5, 5, 5, 0.1));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.58),
    0 2rem 5rem rgba(5, 5, 5, 0.08);
}

.research-loop::before,
.research-loop::after {
  content: "";
  position: absolute;
  inset: 13%;
  border: 1px solid rgba(5, 5, 5, 0.1);
  border-radius: 50%;
}

.research-loop::after {
  inset: 28%;
  border-color: rgba(108, 129, 126, 0.22);
}

.loop-core {
  position: absolute;
  inset: 35%;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #050505;
  color: #fff;
  box-shadow:
    0 0 1.2rem rgba(5, 5, 5, 0.32),
    0 0 5rem rgba(108, 129, 126, 0.24);
}

.loop-core span {
  max-width: 5.6rem;
  font-family: var(--font-secondary);
  font-size: 0.75rem;
  font-weight: var(--weight-ui);
  line-height: 1.18;
  text-align: center;
  text-transform: uppercase;
}

.loop-step {
  position: absolute;
  width: 8.15rem;
  min-height: 5rem;
  display: grid;
  align-content: center;
  gap: 0.45rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(5, 5, 5, 0.12);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.28);
  backdrop-filter: blur(14px);
}

.loop-step span {
  color: var(--accent);
  font-family: var(--font-secondary);
  font-size: 0.68rem;
  font-weight: var(--weight-ui);
}

.loop-step strong {
  font-family: var(--font-secondary);
  font-size: 0.86rem;
  font-weight: var(--weight-ui-strong);
  text-transform: uppercase;
}

.step-one {
  top: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.step-two {
  top: 50%;
  right: -2%;
  transform: translateY(-50%);
}

.step-three {
  bottom: 5%;
  left: 50%;
  transform: translateX(-50%);
}

.step-four {
  top: 50%;
  left: -2%;
  transform: translateY(-50%);
}

.process-band {
  position: relative;
  display: grid;
  grid-template-columns: minmax(8rem, 0.55fr) minmax(18rem, 0.9fr) minmax(22rem, 1.75fr);
  gap: clamp(1.6rem, 3vw, 4rem);
  padding: clamp(3.2rem, 7vw, 6.2rem) clamp(1.25rem, 5vw, 5.8rem);
  border-top: 1px solid rgba(5, 5, 5, 0.1);
  background: rgba(255, 255, 255, 0.66);
  backdrop-filter: blur(18px);
}

.process-summary h2 {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 3.8rem);
  font-weight: 200;
  line-height: 1.05;
}

.process-summary p {
  max-width: 32rem;
  margin: 1.3rem 0 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1vw, 1.12rem);
  line-height: 1.65;
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid rgba(5, 5, 5, 0.12);
  background: rgba(5, 5, 5, 0.12);
}

.process-steps article {
  min-height: 14.2rem;
  padding: 1.15rem;
  background: rgba(255, 255, 255, 0.78);
}

.process-steps span {
  color: var(--accent);
  font-family: var(--font-secondary);
  font-size: 0.7rem;
  font-weight: var(--weight-ui-strong);
  text-transform: uppercase;
}

.process-steps h3 {
  margin: 5.3rem 0 0;
  font-size: clamp(0.94rem, 1.05vw, 1.12rem);
  font-weight: 500;
  line-height: 1.34;
}

.governance-strip {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem;
  align-items: center;
  min-height: 30svh;
  padding: clamp(2rem, 5vw, 4rem) clamp(1.25rem, 5vw, 5.8rem);
  color: #fff;
  background: #050505;
}

.governance-strip p {
  margin: 0;
  font-size: clamp(1.6rem, 3.4vw, 4.8rem);
  font-weight: 200;
  line-height: 1.1;
}

.governance-strip p:last-child {
  max-width: 26rem;
  color: rgba(255, 255, 255, 0.66);
  font-size: clamp(0.95rem, 1.1vw, 1.2rem);
  font-weight: 500;
  line-height: 1.5;
}

@keyframes breathe {
  0%,
  100% {
    transform: scale(0.96);
  }
  50% {
    transform: scale(1.04);
  }
}

@media (max-width: 980px) {
  :root {
    --header-height: 82px;
  }

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

  .primary-nav {
    display: none;
  }

  .hero-copy {
    width: min(100%, 46rem);
  }

  .singularity-stage {
    right: 12vw;
    bottom: 9rem;
    opacity: 0.68;
  }

  .signal-band {
    grid-template-columns: 1fr;
  }

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

  .launch-hero {
    min-height: 74svh;
    grid-template-columns: 1fr;
  }

  .research-hero,
  .process-band {
    grid-template-columns: 1fr;
  }

  .research-loop {
    width: min(70vw, 30rem);
    min-width: 20rem;
  }

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

  .signal-grid article {
    min-height: 11rem;
  }

  .signal-grid h3 {
    margin-top: 2.4rem;
  }
}

@media (max-width: 680px) {
  .site-header {
    padding: 1rem 1.1rem;
  }

  .brand {
    gap: 0.55rem;
    font-size: 0.72rem;
  }

  .brand-mark {
    width: 2.5rem;
    height: 2.5rem;
  }

  .hero {
    min-height: 86svh;
    padding: calc(var(--header-height) + 2.1rem) 1.25rem 2.5rem;
  }

  .micro-label {
    margin-bottom: 2.4rem;
    padding-top: 1.5rem;
    font-size: 0.7rem;
  }

  h1 {
    font-size: clamp(2.7rem, 14.4vw, 5.2rem);
    line-height: 0.98;
  }

  .launch-hero {
    min-height: 72svh;
    padding: calc(var(--header-height) + 3rem) 1.25rem 1.4rem;
  }

  .launch-title {
    max-width: 24rem;
    font-size: clamp(4.1rem, 18vw, 7rem);
    line-height: 0.9;
  }

  .explore-link {
    gap: 1.35rem;
    margin-top: 2.2rem;
    font-size: 0.72rem;
  }

  .singularity-stage {
    right: -1.5rem;
    bottom: 2rem;
    width: 8rem;
    opacity: 0.52;
  }

  .hero-index,
  .vertical-script {
    display: none;
  }

  .signal-band {
    padding: 2.8rem 1.25rem 4rem;
  }

  .research-hero {
    min-height: 93svh;
    gap: 1.25rem;
    padding: calc(var(--header-height) + 2rem) 1.25rem 1.2rem;
  }

  .research-title {
    font-size: clamp(2.9rem, 12.4vw, 5rem);
  }

  .research-deck {
    max-width: 23rem;
    font-size: 0.94rem;
  }

  .research-actions {
    gap: 1rem 1.5rem;
    margin-top: 1.4rem;
  }

  .hero-proof {
    grid-template-columns: 1fr;
    margin-top: 1.35rem;
  }

  .hero-proof span {
    min-height: 3rem;
  }

  .research-loop {
    position: absolute;
    right: -3rem;
    bottom: 2.2rem;
    width: min(70vw, 18rem);
    min-width: 0;
    opacity: 0.36;
  }

  .loop-step {
    display: none;
    width: 6.6rem;
    min-height: 4.1rem;
    padding: 0.72rem 0.8rem;
  }

  .loop-step strong {
    font-size: 0.74rem;
  }

  .process-band {
    padding: 2.8rem 1.25rem 3.5rem;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .process-steps article {
    min-height: 8.5rem;
  }

  .process-steps h3 {
    margin-top: 2.6rem;
  }

  .governance-strip {
    grid-template-columns: 1fr;
    min-height: 18rem;
  }
}

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