:root {
  --bg: #0d1321;
  --fg: #0b1e3b;
  --primary: #1f6feb;
  --accent: #00b894;
  --muted: #6b7280;
  --surface: #ffffff;
  --soft: #f5f7fb;
}

* {
  box-sizing: border-box
}

html,
body {
  margin: 0;
  padding: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, "Helvetica Neue", Arial;
  color: #0f172a;
  background: var(--soft);
}

a {
  color: var(--primary);
  text-decoration: none
}

header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(180%) blur(8px);
  background: rgba(255, 255, 255, .8);
  border-bottom: 1px solid #e5e7eb
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1rem
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between
}

nav a {
  margin: 0 .75rem;
  color: #0f172a;
  font-weight: 500
}

.btn {
  display: inline-block;
  padding: .875rem 1.15rem;
  border-radius: .75rem;
  font-weight: 600;
  border: 1px solid transparent
}

.btn-primary {
  background: var(--primary);
  color: #fff
}

.btn-outline {
  background: #fff;
  border-color: #cbd5e1;
  color: #0f172a
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(31, 111, 235, .15)
}

.hero {
  background: linear-gradient(180deg, #edf2ff 0%, #fff 100%);
  padding: 4.5rem 0
}

.hero h1 {
  font-size: clamp(2rem, 3.6vw, 3rem);
  line-height: 1.1;
  margin: 0 0 .75rem 0
}

.hero p {
  font-size: 1.125rem;
  color: #334155;
  max-width: 52ch
}

.grid {
  display: grid;
  gap: 1.25rem
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr)
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr)
}

.card {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 1rem;
  padding: 1.25rem
}

.card h3 {
  margin: .25rem 0 .5rem 0
}

.section {
  padding: 3.5rem 0
}

.section h2 {
  font-size: clamp(1.5rem, 2.3vw, 2rem);
  margin: 0 0 .5rem 0
}

.lead {
  color: #475569
}

.steps {
  counter-reset: step
}

.step {
  position: relative;
  padding-left: 3.5rem
}

.step:before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: grid;
  place-items: center;
  background: #eef2ff;
  color: #1e40af;
  border-radius: .75rem;
  font-weight: 700
}

.banner {
  background: #0b1e3b;
  color: #fff;
  border-radius: 1rem;
  padding: 2rem
}

.faq details {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  padding: 1rem
}

.faq summary {
  font-weight: 600;
  cursor: pointer
}

.usecase details {
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: .75rem;
  padding: 1rem
}

.usecase summary {
  font-weight: 600;
  cursor: pointer
}

footer {
  background: #0b1e3b;
  color: #cbd5e1;
  padding: 2.5rem 0;
  margin-top: 2rem
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: #e6fdf4;
  color: #065f46;
  border: 1px solid #a7f3d0;
  padding: .4rem .65rem;
  border-radius: .75rem;
  font-size: .875rem;
  font-weight: 600
}

.muted {
  color: #64748b
}

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr
  }

  .grid-2 {
    grid-template-columns: 1fr
  }

  nav {
    display: none
  }
}