:root {
  color-scheme: dark;
  font-family:
    Inter, Pretendard, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #07090d;
  color: #f5f7ff;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at 20% 20%, #193264 0, transparent 35%),
    radial-gradient(circle at 80% 80%, #4b174f 0, transparent 35%),
    #07090d;
}

.card {
  width: min(680px, 100%);
  padding: clamp(28px, 6vw, 64px);
  border: 1px solid #7dd3fc;
  border-radius: 24px;
  background: rgb(7 9 13 / 82%);
  box-shadow:
    0 0 40px rgb(56 189 248 / 18%),
    0 24px 80px rgb(0 0 0 / 45%);
}

.eyebrow {
  margin: 0 0 12px;
  color: #7dd3fc;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(2.3rem, 8vw, 5rem);
  line-height: 1;
}

p {
  color: #cbd5e1;
  line-height: 1.8;
}

a {
  display: inline-block;
  margin-top: 16px;
  padding: 12px 18px;
  border-radius: 999px;
  background: #f5f7ff;
  color: #07090d;
  font-weight: 700;
  text-decoration: none;
}

a:hover {
  background: #7dd3fc;
}