:root {
  color-scheme: dark;
  --bg: #07101c;
  --surface: rgba(13, 27, 46, 0.78);
  --surface-strong: rgba(17, 39, 65, 0.92);
  --line: rgba(137, 183, 255, 0.22);
  --text: #eef6ff;
  --muted: #a9b8c9;
  --blue: #54a6ff;
  --cyan: #44e2d2;
  --green: #8fedb8;
  --ink: #06111f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 22% 18%, rgba(68, 226, 210, 0.18), transparent 28rem),
    radial-gradient(circle at 78% 2%, rgba(84, 166, 255, 0.22), transparent 26rem),
    linear-gradient(135deg, #06101d 0%, #0a1423 44%, #061827 100%);
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.8), transparent 85%);
}

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

.page-shell {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-size: 0.94rem;
  font-weight: 700;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  flex: 0 0 auto;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid rgba(68, 226, 210, 0.55);
  border-radius: 8px;
  color: var(--cyan);
  background: rgba(68, 226, 210, 0.09);
  box-shadow: 0 0 28px rgba(68, 226, 210, 0.24);
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.nav-links a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.78fr);
  gap: 44px;
  align-items: center;
  min-height: calc(100vh - 90px);
  padding: 34px 0 88px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 860px;
  margin-bottom: 24px;
  font-size: clamp(3.4rem, 7.4vw, 6.9rem);
  line-height: 0.93;
  letter-spacing: 0;
}

h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2rem, 3.8vw, 3.5rem);
  line-height: 1.02;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 14px;
  font-size: 1.1rem;
}

.hero-copy,
.intro p,
.contact p {
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.75;
}

.hero-copy {
  max-width: 700px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-weight: 800;
  white-space: nowrap;
}

.button.primary {
  border-color: transparent;
  color: var(--ink);
  background: linear-gradient(135deg, var(--cyan), var(--green));
  box-shadow: 0 18px 44px rgba(68, 226, 210, 0.22);
}

.button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
}

.signal-panel {
  position: relative;
  min-height: 560px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(84, 166, 255, 0.18), transparent 44%),
    linear-gradient(315deg, rgba(68, 226, 210, 0.16), transparent 38%),
    var(--surface);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.28);
}

.signal-panel::before,
.signal-panel::after {
  position: absolute;
  content: "";
  border: 1px solid rgba(68, 226, 210, 0.28);
  border-radius: 999px;
}

.signal-panel::before {
  inset: 78px 44px 120px;
}

.signal-panel::after {
  inset: 134px 92px 176px;
}

.panel-grid {
  position: absolute;
  right: 24px;
  bottom: 24px;
  left: 24px;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.panel-grid > div {
  min-height: 118px;
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: rgba(4, 12, 22, 0.64);
  backdrop-filter: blur(16px);
}

.metric,
.label {
  display: block;
}

.metric {
  margin-bottom: 8px;
  color: var(--green);
  font-size: 2rem;
  font-weight: 900;
}

.label {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.35;
}

.orbit-map {
  position: absolute;
  inset: 0;
}

.core {
  position: absolute;
  top: 28%;
  left: 50%;
  width: 86px;
  height: 86px;
  border: 1px solid rgba(143, 237, 184, 0.85);
  border-radius: 999px;
  background: rgba(143, 237, 184, 0.13);
  box-shadow: 0 0 60px rgba(143, 237, 184, 0.42);
  transform: translate(-50%, -50%);
}

.node {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--cyan);
  box-shadow: 0 0 30px rgba(68, 226, 210, 0.8);
}

.n1 {
  top: 15%;
  left: 31%;
}

.n2 {
  top: 24%;
  right: 22%;
  background: var(--blue);
}

.n3 {
  top: 46%;
  left: 17%;
  background: var(--green);
}

.n4 {
  top: 53%;
  right: 29%;
}

.section {
  padding: 86px 0;
}

.intro {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.intro p {
  max-width: 970px;
  margin-bottom: 0;
  font-size: clamp(1.25rem, 2.4vw, 2rem);
  line-height: 1.45;
}

.section-heading {
  display: grid;
  grid-template-columns: 0.34fr 1fr;
  gap: 36px;
  align-items: start;
  margin-bottom: 34px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.card {
  min-height: 300px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.card-index {
  display: block;
  margin-bottom: 64px;
  color: var(--cyan);
  font-size: 0.82rem;
  font-weight: 900;
}

.card p,
.workflow-step span,
.focus-list {
  color: var(--muted);
  line-height: 1.65;
}

.workflow {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.workflow-step {
  min-height: 210px;
  padding: 26px;
  border-right: 1px solid var(--line);
}

.workflow-step:last-child {
  border-right: 0;
}

.workflow-step strong {
  display: block;
  margin-bottom: 18px;
  color: var(--text);
  font-size: 1.25rem;
}

.workflow-step span {
  display: block;
}

.proof {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: start;
}

.focus-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.focus-list li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.contact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: center;
  margin: 40px 0 70px;
  padding: 34px;
  border: 1px solid rgba(68, 226, 210, 0.34);
  border-radius: 8px;
  background: var(--surface-strong);
}

.contact p {
  max-width: 720px;
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .hero,
  .section-heading,
  .proof,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .signal-panel {
    min-height: 460px;
  }

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

  .workflow-step:nth-child(2) {
    border-right: 0;
  }

  .workflow-step:nth-child(1),
  .workflow-step:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 28px, 1180px);
  }

  .site-header,
  .nav-links {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero {
    padding-top: 22px;
  }

  h1 {
    font-size: 3.1rem;
  }

  .button {
    width: 100%;
    white-space: normal;
    text-align: center;
  }

  .signal-panel {
    min-height: 540px;
  }

  .panel-grid,
  .cards,
  .workflow,
  .focus-list {
    grid-template-columns: 1fr;
  }

  .workflow-step,
  .workflow-step:nth-child(2) {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .workflow-step:last-child {
    border-bottom: 0;
  }

  .contact {
    padding: 24px;
  }
}