body {
  font-family: system-ui, -apple-system, sans-serif;
  background-color: #f4f5f7;
  color: #333;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}
.container {
  background: white;
  padding: 30px;
  border-radius: 8px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
  text-align: center;
  max-width: 500px;
}
h1 { color: #10b981; }
p { line-height: 1.6; }