body { font-family: sans-serif; background-color: #f0f2f5; color: #333; display: flex; justify-content: center; align-items: center; height: 100vh; margin: 0; }
.container { text-align: center; background-color: white; padding: 40px; border-radius: 8px; box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
h1 { color: #0056b3; }