* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: system-ui, sans-serif;
  background: #111;
  color: #eee;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.container { text-align: center; padding: 2rem; }
h1 { font-size: 2rem; color: #0f0; margin-bottom: 1rem; }
p { margin-bottom: 0.75rem; color: #aaa; }
.box {
  margin-top: 1.5rem;
  padding: 1.5rem;
  border: 2px solid #0f0;
  border-radius: 8px;
  color: #0f0;
  font-size: 1.1rem;
}