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

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f6f8;
  color: #1f2937;
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.container {
  width: min(90%, 480px);
  background-color: #ffffff;
  border: 1px solid #e5e7eb;
  border-radius: 12px;
  padding: 24px;
  text-align: center;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
}

h1 {
  margin-bottom: 12px;
  font-size: 1.5rem;
}

p {
  margin-bottom: 16px;
}

button {
  border: none;
  background-color: #2563eb;
  color: #ffffff;
  padding: 10px 16px;
  border-radius: 8px;
  font-size: 0.95rem;
  cursor: pointer;
}

button:hover {
  background-color: #1d4ed8;
}