*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: #fff;
  color: #1a1a2e;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

main {
  text-align: center;
  padding: 2rem;
}

.icon {
  font-size: 4rem;
  display: block;
  margin-bottom: 1rem;
}

h1 {
  font-size: 2.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 0.75rem;
}

p {
  font-size: 1.1rem;
  color: #888;
}