:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light dark}@media (prefers-color-scheme:dark){:root{--lightningcss-light: ;--lightningcss-dark:initial}}body{margin:0}.app{max-width:720px;margin:64px auto;padding:0 16px;font-family:system-ui,sans-serif}.app h1{margin-bottom:8px}.card{border:1px solid #ccc4;border-radius:8px;margin-top:24px;padding:16px}