:root {
  color: #e8eef6;
  background: #0b1220;
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.5;
  --cyan: #5eead4;
  --blue: #2a6f97;
  --muted: #9fb0c3;
  --card: #151c26;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

a {
  color: var(--cyan);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 8vw;
  border-bottom: 1px solid #243041;
  position: sticky;
  top: 0;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: blur(10px);
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav nav a:not(.btn) {
  color: var(--muted);
  text-decoration: none;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #e8eef6;
  text-decoration: none;
  font-weight: 650;
}

.brand img {
  border-radius: 8px;
}

main {
  padding: 64px 8vw 80px;
  max-width: 1100px;
  margin: 0 auto;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 8px 0 16px;
}

.eyebrow {
  color: var(--cyan);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.78rem;
  font-weight: 650;
}

.lede {
  color: var(--muted);
  max-width: 40rem;
  font-size: 1.1rem;
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0 12px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 10px;
  text-decoration: none;
  font-weight: 650;
}

.btn-primary {
  background: var(--cyan);
  color: #0b1220;
}

.btn-lg {
  padding: 14px 22px;
  font-size: 1.05rem;
}

.btn-ghost {
  background: #1b2736;
  color: #e8eef6;
}

.fine {
  color: var(--muted);
  font-size: 0.88rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin: 72px 0;
}

.grid article {
  background: var(--card);
  border: 1px solid #243041;
  border-radius: 14px;
  padding: 20px;
}

.grid h2,
section h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.grid p {
  color: var(--muted);
  margin-bottom: 0;
}

.demo-video {
  display: block;
  width: 100%;
  max-width: 820px;
  aspect-ratio: 16 / 9;
  height: auto;
  margin: 0 auto;
  background: #0b1220;
  border: 1px solid #243041;
  border-radius: 14px;
}

.steps {
  padding-left: 1.2rem;
  color: var(--muted);
}

.steps li {
  margin: 8px 0;
}

kbd {
  background: #1b2736;
  border: 1px solid #334155;
  border-radius: 6px;
  padding: 1px 6px;
  color: #e8eef6;
}

section {
  margin: 56px 0;
}

footer {
  padding: 24px 8vw 48px;
  border-top: 1px solid #243041;
  color: var(--muted);
}

@media (max-width: 720px) {
  .nav nav a:not(.btn) {
    display: none;
  }
}