:root {
  color-scheme: light;
  --background: #f4f7fb;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-border: rgba(255, 255, 255, 0.65);
  --text: #14213d;
  --muted: #4f5d75;
  --accent: #2563eb;
  --shadow: 0 24px 60px rgba(20, 33, 61, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top, rgba(37, 99, 235, 0.18), transparent 32%),
    linear-gradient(180deg, #f8fbff 0%, var(--background) 100%);
}

.hero {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(680px, 100%);
  padding: 40px 32px;
  border: 1px solid var(--surface-border);
  border-radius: 24px;
  background: var(--surface);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  text-align: center;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1.05;
}

.description {
  margin: 18px auto 0;
  max-width: 54ch;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.7;
}

@media (max-width: 640px) {
  .card {
    padding: 32px 22px;
    border-radius: 20px;
  }

  .description {
    font-size: 1rem;
  }
}