/* base.css */
* {
  box-sizing: border-box;
}
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: Arial, sans-serif;
  background: #0f0f0f;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
}