body {
  font-family: system-ui, sans-serif;
  background: #0f1117;
  color: #e6e6e6;
  display: grid;
  place-items: center;
  min-height: 100vh;
  margin: 0;
}
button {
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  border: none;
  cursor: pointer;
}