:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #07111f;
  color: #eef5ff;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #1f5eff 0, transparent 28rem), #07111f;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 64px 0;
}

.hero {
  margin-bottom: 32px;
}

.eyebrow {
  color: #82d7ff;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  max-width: 760px;
  margin: 0;
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  line-height: 0.92;
}

.lede {
  max-width: 680px;
  color: #b9c6d8;
  font-size: 1.2rem;
}

.card {
  border: 1px solid rgb(255 255 255 / 12%);
  border-radius: 24px;
  padding: 24px;
  background: rgb(6 13 26 / 78%);
  box-shadow: 0 24px 70px rgb(0 0 0 / 38%);
}

form {
  display: flex;
  gap: 12px;
}

input,
button {
  border: 0;
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
}

input {
  flex: 1;
  background: #101c2e;
  color: #eef5ff;
}

button {
  background: #82d7ff;
  color: #06111f;
  font-weight: 800;
}

li {
  margin: 8px 0;
}

@media (max-width: 640px) {
  form {
    flex-direction: column;
  }
}