* {
  box-sizing: border-box;
}

:root {
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", sans-serif;
  color: #172033;
  background: #f4f7fb;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top left, rgba(249, 115, 22, 0.18), transparent 35%),
    linear-gradient(135deg, #f8fafc, #eef2ff);
}

.card {
  width: min(680px, 100%);
  padding: clamp(32px, 7vw, 64px);
  border: 1px solid rgba(23, 32, 51, 0.1);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: 0 24px 70px rgba(23, 32, 51, 0.12);
  text-align: center;
  backdrop-filter: blur(12px);
}

.eyebrow {
  margin: 0 0 12px;
  color: #c2410c;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 8vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.intro {
  max-width: 520px;
  margin: 24px auto 30px;
  font-size: 1.1rem;
  line-height: 1.7;
  color: #526079;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 14px 22px;
  font: inherit;
  font-weight: 800;
  color: white;
  background: #f97316;
  cursor: pointer;
  box-shadow: 0 10px 24px rgba(249, 115, 22, 0.28);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(249, 115, 22, 0.34);
}

button:focus-visible {
  outline: 3px solid rgba(249, 115, 22, 0.35);
  outline-offset: 4px;
}

.message {
  min-height: 1.5em;
  margin: 20px 0 0;
  font-weight: 700;
}