:root {
  --bg: #050505;
  --panel: #111;
  --panel-2: #181818;
  --gold: #f5c542;
  --text: #ffffff;
  --muted: #b8b8b8;
  --line: #2d2d2d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: radial-gradient(circle at top, #222 0%, #090909 48%, #000 100%);
  color: var(--text);
  font-family: Inter, Arial, sans-serif;
}

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

.container {
  width: min(1120px, 92%);
  margin: auto;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(0,0,0,.75);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand {
  font-size: 24px;
  font-weight: 900;
}

.brand span {
  color: var(--gold);
}

nav {
  display: flex;
  gap: 24px;
  align-items: center;
  color: var(--muted);
  font-weight: 700;
}

.btn {
  display: inline-flex;
  background: var(--gold);
  color: #111;
  font-weight: 900;
  padding: 15px 22px;
  border-radius: 14px;
  border: 1px solid var(--gold);
}

.btn.secondary {
  background: transparent;
  color: white;
  border-color: #444;
}

.btn.small {
  padding: 11px 17px;
}

.hero {
  min-height: 86vh;
  display: flex;
  align-items: center;
  padding: 80px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}

.eyebrow {
  color: var(--gold);
  font-size: 13px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .16em;
}

h1 {
  font-size: clamp(46px, 7vw, 84px);
  line-height: .95;
  letter-spacing: -.06em;
  margin: 18px 0 24px;
}

h2 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1;
  letter-spacing: -.04em;
  margin: 0 0 22px;
}

.lead,
.section-lead {
  color: #e8e8e8;
  font-size: 20px;
  line-height: 1.65;
  max-width: 780px;
}

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

.flow-card {
  background: rgba(16,16,16,.95);
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 34px;
  box-shadow: 0 24px 90px rgba(0,0,0,.55);
}

.flow-item {
  background: #090909;
  border: 1px solid #333;
  border-radius: 18px;
  padding: 18px;
  text-align: center;
  font-size: 22px;
  font-weight: 900;
}

.flow-item.gold {
  color: var(--gold);
}

.arrow {
  text-align: center;
  color: var(--gold);
  font-size: 24px;
  margin: 8px 0;
}

.section {
  padding: 84px 0;
  border-top: 1px solid rgba(255,255,255,.07);
}

.dark {
  background: rgba(0,0,0,.35);
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 36px;
}

.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 28px;
  min-height: 290px;
}

.icon {
  width: 52px;
  height: 52px;
  background: #241d00;
  color: var(--gold);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  margin-bottom: 18px;
}

.card h3 {
  font-size: 24px;
  margin: 0 0 12px;
}

.card p {
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}

.tech-row,
.applications {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.tech-row span,
.applications span {
  background: #0d0d0d;
  border: 1px solid #333;
  color: var(--gold);
  padding: 14px 18px;
  border-radius: 999px;
  font-weight: 900;
}

.cta {
  text-align: center;
}

.cta p {
  color: var(--muted);
  font-size: 20px;
  margin-bottom: 28px;
}

footer {
  border-top: 1px solid var(--line);
  color: #888;
  text-align: center;
  padding: 30px;
}

@media (max-width: 900px) {
  nav {
    display: none;
  }

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

  h1 {
    font-size: 46px;
  }
}