body{font-family:system-ui,sans-serif;max-width:760px;margin:2rem auto;padding:0 1rem;line-height:1.5;color:#222}
code{background:#f2f2f2;padding:.1em .3em;border-radius:4px;word-break:break-all}
table{border-collapse:collapse}th,td{border:1px solid #ddd;padding:.4em .6em;text-align:left;vertical-align:top}
input,button{padding:.4em .6em;font-size:1rem}
img#preview{max-width:100%;display:none;margin-top:1rem;border:1px solid #ddd}