body { font-family: system-ui, sans-serif; margin: 0; background: #f6f6f4; color: #1f1f1f; }
main { max-width: 40rem; margin: 3rem auto; padding: 0 1rem; }
ul { list-style: none; padding: 0; }
li { background: #fff; border: 1px solid #ddd; border-radius: 8px; padding: 1rem; margin: 0.5rem 0; }
a { font-weight: 600; color: #1a5fb4; }