:root {
  color-scheme: light;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #1f2937;
  background: #f4f7fb;
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  display: grid;
  grid-template-rows: 1fr auto;
  background:
    radial-gradient(circle at top left, #dbeafe 0, transparent 38%),
    #f4f7fb;
}

.page-shell {
  display: grid;
  place-items: center;
  padding: 48px 20px;
}

.hero {
  width: min(100%, 720px);
  padding: clamp(32px, 7vw, 72px);
  border: 1px solid rgba(148, 163, 184, 0.35);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 24px 70px rgba(30, 64, 175, 0.12);
  text-align: center;
}

.eyebrow {
  margin: 0 0 16px;
  color: #2563eb;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  color: #0f172a;
  font-size: clamp(2.25rem, 7vw, 4.5rem);
  line-height: 1.05;
}

.intro {
  max-width: 580px;
  margin: 24px auto 32px;
  color: #475569;
  font-size: 1.05rem;
  line-height: 1.8;
}

button {
  padding: 13px 22px;
  border: 0;
  border-radius: 999px;
  color: #fff;
  background: #2563eb;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 160ms ease, transform 160ms ease;
}

button:hover {
  background: #1d4ed8;
  transform: translateY(-1px);
}

button:focus-visible {
  outline: 3px solid #93c5fd;
  outline-offset: 3px;
}

.status {
  min-height: 1.5em;
  margin: 18px 0 0;
  color: #64748b;
}

.status.is-success {
  color: #15803d;
  font-weight: 700;
}

footer {
  padding: 20px;
  color: #64748b;
  text-align: center;
}

footer p {
  margin: 0;
}

@media (max-width: 520px) {
  .page-shell {
    padding: 24px 14px;
  }

  .hero {
    border-radius: 18px;
  }
}