* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #fafafa;
  color: #1f2937;
}

.gateway {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  padding: 2rem 1rem;
  text-align: center;
}

.gateway h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
}

.gateway__sub {
  margin: 0;
  font-size: 1rem;
  color: #6b7280;
}

.gateway__choices {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1rem;
}

.gateway__btn {
  display: inline-block;
  min-width: 180px;
  padding: 0.85rem 1.5rem;
  border-radius: 0.5rem;
  background: #111827;
  color: #fff;
  font-size: 1.05rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease;
}

.gateway__btn:hover,
.gateway__btn:focus-visible {
  background: #1f2937;
  outline: none;
}