:root{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;color:#f1f3fa;background:#101116;font-family:system-ui,sans-serif}body{margin:0;padding:24px}main{max-width:600px;margin:auto}video{background:#000;border-radius:8px;width:100%;max-height:60vh}button{font:inherit;margin:6px 8px 6px 0;padding:14px 22px}p{line-height:1.5}