* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Arial, sans-serif;
  background: #f4f7fb;
  display: grid;
  place-items: center;
}

.container {
  width: min(90%, 500px);
  background: #ffffff;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
  text-align: center;
}

h1 {
  margin-top: 0;
  color: #1f2937;
}

p {
  color: #4b5563;
  margin-bottom: 1.25rem;
}

button {
  border: none;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  cursor: pointer;
  color: #ffffff;
  background: #2563eb;
}

button:hover {
  background: #1d4ed8;
}