* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #0f172a;
  color: #e2e8f0;
}

.page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 20px;
}

.card {
  width: min(960px, 100%);
  background: #111827;
  border-radius: 16px;
  padding: 16px;
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.45);
  text-align: center;
}

.banner {
  width: 100%;
  height: auto;
  border-radius: 12px;
  display: block;
}

h1 {
  margin: 20px 0 10px;
  font-size: clamp(24px, 4vw, 38px);
  line-height: 1.2;
}

p {
  margin: 0 0 18px;
  color: #cbd5e1;
  font-size: 16px;
}

.cta {
  display: inline-block;
  background: #22c55e;
  color: #08120d;
  text-decoration: none;
  font-weight: 700;
  padding: 12px 22px;
  border-radius: 10px;
}

.cta:hover {
  background: #16a34a;
}