:root {
  --ink: #071428;
  --muted: #5a677d;
  --line: #d9e1ef;
  --blue: #0057d9;
  --cyan: #00a6c8;
  --gold: #d6a419;
  --paper: #f7f9fd;
  --white: #ffffff;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px clamp(18px, 5vw, 72px);
  background: rgba(247, 249, 253, 0.88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid transparent;
}

.site-header.is-elevated { border-color: var(--line); }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: white;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  border-radius: 8px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.nav-cta {
  color: var(--ink);
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
}

.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--line);
  background: white;
  border-radius: 8px;
}

.menu-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: clamp(32px, 6vw, 84px);
  padding: clamp(42px, 7vw, 92px) clamp(18px, 5vw, 72px);
  background:
    linear-gradient(105deg, rgba(255,255,255,0.97) 0 48%, rgba(255,255,255,0.7) 48% 100%),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=1800&q=80") center/cover;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 820px;
  margin-bottom: 22px;
  font-size: clamp(42px, 6vw, 82px);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(30px, 4vw, 52px);
  line-height: 1.04;
}

h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 0 18px;
  border-radius: 8px;
  border: 1px solid transparent;
  font-weight: 800;
}

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

.button.secondary {
  color: var(--ink);
  background: white;
  border-color: var(--line);
}

.hero-panel {
  padding: 22px;
  color: white;
  background: rgba(7, 20, 40, 0.88);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  box-shadow: 0 24px 70px rgba(7, 20, 40, 0.28);
}

.panel-header,
.ticker,
footer {
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.signal-grid {
  display: grid;
  gap: 12px;
  margin: 24px 0;
}

.signal-grid article {
  padding: 18px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 8px;
}

.signal-grid span,
.signal-grid small {
  display: block;
  color: #b9c5d9;
}

.signal-grid strong {
  display: block;
  margin: 6px 0 2px;
  color: var(--gold);
  font-size: 42px;
}

.ticker {
  flex-wrap: wrap;
}

.ticker span {
  padding: 8px 10px;
  color: #dce7f9;
  background: rgba(0,166,200,0.18);
  border-radius: 8px;
}

.section,
.process,
.contact {
  padding: clamp(56px, 8vw, 104px) clamp(18px, 5vw, 72px);
}

.section-heading {
  max-width: 780px;
}

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

.domain-grid article {
  min-height: 240px;
  padding: 24px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.domain-grid p,
.process span,
.contact p {
  color: var(--muted);
  line-height: 1.65;
}

.process {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  color: white;
  background: var(--ink);
}

.process .eyebrow { color: var(--gold); }

.steps {
  display: grid;
  gap: 12px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.steps li {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 16px;
  padding: 18px;
  background: rgba(255,255,255,0.08);
  border-radius: 8px;
}

.network {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
}

.metric {
  padding: clamp(36px, 6vw, 66px);
  text-align: center;
  background: white;
}

.metric strong {
  display: block;
  color: var(--blue);
  font-size: clamp(42px, 7vw, 78px);
}

.metric span {
  color: var(--muted);
  font-weight: 700;
}

.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 36px;
  background: white;
}

form {
  display: grid;
  gap: 14px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 800;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
}

footer {
  padding: 24px clamp(18px, 5vw, 72px);
  color: var(--muted);
  background: var(--paper);
}

@media (max-width: 900px) {
  .hero,
  .process,
  .contact {
    grid-template-columns: 1fr;
  }

  .domain-grid,
  .network {
    grid-template-columns: 1fr;
  }

  .site-nav {
    position: fixed;
    inset: 72px 16px auto;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    background: white;
    border: 1px solid var(--line);
    border-radius: 8px;
  }

  .site-nav.is-open { display: flex; }
  .menu-toggle { display: block; }
}

@media (max-width: 560px) {
  .steps li {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
  }
}