:root {
  color-scheme: light;
  --cream: oklch(96.5% 0.023 83);
  --cream-deep: oklch(91.8% 0.034 78);
  --paper: oklch(98.2% 0.015 92);
  --ink: oklch(27% 0.035 102);
  --muted: oklch(49% 0.035 101);
  --sage: oklch(68% 0.075 164);
  --sage-deep: oklch(46% 0.09 184);
  --clay: oklch(72% 0.072 49);
  --moss: oklch(42% 0.059 130);
  --line: oklch(83% 0.025 82 / 64%);
  --shadow-soft: 0 24px 70px oklch(45% 0.035 92 / 16%);
  --shadow-card: 0 18px 50px oklch(44% 0.04 100 / 12%);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 12% 10%, oklch(92% 0.046 158 / 66%), transparent 28rem),
    radial-gradient(circle at 86% 4%, oklch(89% 0.056 52 / 52%), transparent 30rem),
    linear-gradient(135deg, var(--paper), var(--cream) 50%, var(--cream-deep));
  color: var(--ink);
  font-family:
    "SF Pro Display",
    "SF Pro Text",
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    "PingFang SC",
    "Hiragino Sans GB",
    "Microsoft YaHei",
    sans-serif;
  line-height: 1.65;
  letter-spacing: 0;
  overflow-x: hidden;
}

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

.ambient-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.72;
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(100%, 1480px);
  margin: 0 auto;
  padding: 24px clamp(18px, 4vw, 56px) 32px;
}

.site-header {
  position: sticky;
  top: 16px;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 13px 18px;
  border: 1px solid oklch(91% 0.018 88 / 78%);
  border-radius: 28px;
  background: oklch(98% 0.014 90 / 78%);
  box-shadow: 0 18px 50px oklch(38% 0.04 105 / 10%);
  backdrop-filter: blur(22px) saturate(120%);
}

.brand-lockup {
  display: inline-flex;
  align-items: center;
  flex: 0 1 286px;
  min-width: 0;
}

.brand-lockup img {
  display: block;
  width: min(252px, 54vw);
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  white-space: nowrap;
}

.site-nav a {
  border-radius: 999px;
  padding: 9px 14px;
  transition:
    color 360ms var(--ease-out),
    background 360ms var(--ease-out);
}

.site-nav a:hover {
  color: var(--ink);
  background: oklch(90% 0.028 86 / 72%);
}

.section-pad {
  padding: clamp(72px, 10vw, 148px) 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(360px, 0.78fr);
  align-items: center;
  gap: clamp(34px, 6vw, 96px);
  min-height: calc(100vh - 126px);
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--sage-deep);
  font-size: 15px;
  font-weight: 700;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 26px;
  font-size: clamp(46px, 7.6vw, 104px);
  font-weight: 720;
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 20px;
  font-size: clamp(34px, 5.1vw, 68px);
  font-weight: 680;
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: clamp(20px, 2.2vw, 28px);
  font-weight: 680;
  line-height: 1.18;
}

.hero-lede {
  max-width: 760px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 24px);
  line-height: 1.75;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 36px;
}

.primary-action,
.secondary-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 15px;
  font-weight: 700;
  transition:
    transform 360ms var(--ease-out),
    box-shadow 360ms var(--ease-out),
    background 360ms var(--ease-out);
}

.primary-action {
  background: var(--ink);
  color: var(--paper);
  box-shadow: 0 18px 32px oklch(31% 0.04 105 / 20%);
}

.secondary-action {
  border: 1px solid var(--line);
  background: oklch(98% 0.013 92 / 62%);
  color: var(--ink);
}

.primary-action:hover,
.secondary-action:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-card);
}

.hero-visual {
  display: grid;
  place-items: center;
}

.orbital-card {
  position: relative;
  width: min(100%, 500px);
  aspect-ratio: 1;
  border: 1px solid oklch(91% 0.02 85 / 82%);
  border-radius: 42px;
  background:
    linear-gradient(145deg, oklch(98% 0.015 92 / 86%), oklch(93% 0.036 77 / 72%)),
    radial-gradient(circle at 36% 28%, oklch(78% 0.081 174 / 42%), transparent 42%);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
}

.orbital-card::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, oklch(97% 0.015 90 / 30%), transparent 63%);
}

.orbit {
  position: absolute;
  inset: 16%;
  border: 1px solid oklch(58% 0.06 160 / 34%);
  border-radius: 50%;
  animation: spin 18s linear infinite;
}

.orbit::after {
  content: "";
  position: absolute;
  top: 8%;
  left: 50%;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--sage-deep);
  box-shadow: 0 0 0 9px oklch(68% 0.075 164 / 16%);
}

.orbit-two {
  inset: 25%;
  transform: rotate(64deg);
  border-color: oklch(70% 0.065 50 / 38%);
  animation-duration: 26s;
  animation-direction: reverse;
}

.orbit-two::after {
  background: var(--clay);
}

.core-mark {
  position: absolute;
  inset: 34%;
  display: grid;
  place-items: center;
  align-content: center;
  border-radius: 50%;
  background:
    linear-gradient(145deg, oklch(100% 0.01 90 / 74%), oklch(91% 0.03 82 / 80%)),
    var(--paper);
  box-shadow: inset 0 0 0 1px oklch(91% 0.02 80), 0 20px 50px oklch(45% 0.04 105 / 14%);
}

.core-mark span {
  color: var(--sage-deep);
  font-size: 13px;
  font-weight: 800;
}

.core-mark strong {
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1;
}

.signal-chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 76px;
  min-height: 40px;
  border: 1px solid oklch(91% 0.02 88 / 76%);
  border-radius: 999px;
  background: oklch(98% 0.014 90 / 74%);
  color: var(--ink);
  font-weight: 700;
  box-shadow: 0 14px 30px oklch(45% 0.04 100 / 10%);
  backdrop-filter: blur(18px);
}

.chip-a {
  top: 18%;
  left: 10%;
}

.chip-b {
  top: 24%;
  right: 8%;
}

.chip-c {
  right: 14%;
  bottom: 18%;
}

.chip-d {
  left: 14%;
  bottom: 20%;
}

.intro-band {
  display: grid;
  place-items: center;
  min-height: 310px;
  margin: 0 clamp(-24px, -4vw, -56px);
  padding: 72px clamp(24px, 8vw, 120px);
  border-block: 1px solid var(--line);
  background: oklch(37% 0.045 112);
  color: oklch(95% 0.016 92);
}

.intro-text {
  display: grid;
  grid-template-columns: 0.72fr 1.4fr;
  align-items: start;
  gap: clamp(24px, 6vw, 90px);
  width: min(100%, 1120px);
}

.intro-text span {
  color: oklch(82% 0.052 72);
  font-size: clamp(22px, 3vw, 38px);
  font-weight: 720;
  line-height: 1.08;
}

.intro-text p {
  margin-bottom: 0;
  font-size: clamp(24px, 3.2vw, 44px);
  font-weight: 620;
  line-height: 1.28;
}

.section-heading {
  max-width: 830px;
  margin-bottom: clamp(34px, 6vw, 78px);
}

.capability-stack {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 18px;
}

.capability-card {
  grid-column: span 2;
  min-height: 270px;
  padding: clamp(24px, 3vw, 34px);
  border: 1px solid oklch(91% 0.02 84 / 84%);
  border-radius: 30px;
  background:
    linear-gradient(145deg, oklch(98.5% 0.014 92 / 86%), oklch(93.5% 0.027 80 / 74%)),
    var(--paper);
  box-shadow: var(--shadow-card);
  transition:
    transform 420ms var(--ease-out),
    box-shadow 420ms var(--ease-out);
}

.capability-card:nth-child(4),
.capability-card:nth-child(5) {
  grid-column: span 3;
}

.capability-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-soft);
}

.capability-index {
  display: inline-flex;
  margin-bottom: 42px;
  color: var(--sage-deep);
  font-size: 15px;
  font-weight: 800;
}

.capability-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 17px;
}

.platform-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(360px, 1fr);
  align-items: center;
  gap: clamp(34px, 6vw, 92px);
  padding: clamp(30px, 6vw, 76px);
  border: 1px solid oklch(91% 0.022 88 / 74%);
  border-radius: 42px;
  background:
    radial-gradient(circle at 82% 20%, oklch(73% 0.073 165 / 34%), transparent 24rem),
    linear-gradient(145deg, oklch(98% 0.015 92 / 88%), oklch(92.5% 0.032 73 / 88%));
  box-shadow: var(--shadow-soft);
}

.platform-copy p:not(.eyebrow) {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 18px;
}

.platform-map {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.platform-node {
  display: grid;
  place-items: center;
  min-height: 112px;
  padding: 18px;
  border: 1px solid oklch(91% 0.02 86 / 80%);
  border-radius: 24px;
  background: oklch(98% 0.014 92 / 76%);
  color: var(--ink);
  font-weight: 720;
  text-align: center;
  box-shadow: 0 16px 34px oklch(45% 0.04 100 / 9%);
  backdrop-filter: blur(14px);
}

.node-main {
  grid-column: span 2;
  min-height: 138px;
  background: var(--ink);
  color: var(--paper);
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.25;
}

.security-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.72fr);
  align-items: end;
  gap: clamp(30px, 8vw, 120px);
}

.security-copy {
  border-top: 1px solid var(--line);
  padding-top: 28px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 23px);
}

.security-copy p {
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  padding: 30px 0 6px;
  color: var(--muted);
  font-size: 14px;
}

.footer-brand {
  display: grid;
  gap: 4px;
}

.footer-brand strong {
  color: var(--ink);
  font-size: 15px;
}

.icp-link {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 4px;
  transition: color 240ms var(--ease-out);
}

.icp-link:hover {
  color: var(--sage-deep);
}

.js [data-reveal] {
  animation: reveal-up 860ms var(--ease-out) both;
}

.js [data-reveal]:nth-child(2n) {
  animation-delay: 80ms;
}

@keyframes spin {
  to {
    rotate: 360deg;
  }
}

@keyframes reveal-up {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .hero,
  .platform-panel,
  .security-grid,
  .intro-text {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual {
    order: -1;
  }

  .orbital-card {
    max-width: 430px;
  }

  .capability-card,
  .capability-card:nth-child(4),
  .capability-card:nth-child(5) {
    grid-column: span 3;
  }
}

@media (max-width: 720px) {
  .page-shell {
    padding: 14px 14px 26px;
  }

  .site-header {
    position: relative;
    top: auto;
    align-items: flex-start;
    border-radius: 24px;
  }

  .site-nav {
    display: none;
  }

  .brand-lockup img {
    width: min(230px, 76vw);
  }

  h1 {
    font-size: clamp(42px, 13vw, 66px);
  }

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

  .primary-action,
  .secondary-action {
    width: 100%;
  }

  .intro-band {
    margin-inline: -14px;
    padding: 56px 20px;
  }

  .capability-stack,
  .platform-map {
    grid-template-columns: 1fr;
  }

  .capability-card,
  .capability-card:nth-child(4),
  .capability-card:nth-child(5),
  .node-main {
    grid-column: span 1;
  }

  .platform-panel {
    border-radius: 30px;
    padding: 24px;
  }

  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}