body { font-family: system-ui, sans-serif; margin: 0; min-height: 100vh; display: grid; place-items: center; background: #f4f6f8; color: #1d2733; }
main { text-align: center; }
h1 { font-size: 2rem; margin: 0 0 1rem; }
#version { color: #0a7d38; }