:root{background:Canvas;color:CanvasText;color-scheme:dark light}body{font-family:system-ui,sans-serif;max-width:min(80ch,98svw)}header{background:Canvas;box-shadow:Canvas 0 -10px;left:0;position:sticky;right:0;top:8px}fieldset,legend{background-color:Field;border:ButtonBorder solid;border-radius:8px;color:FieldText}legend{font-weight:bold;padding:8px}fieldset{margin-bottom:10px}dl{align-items:center;display:grid;gap:8px;grid-template-columns:max-content 1fr}dt,dd{display:block;margin:0;padding:0}dt{font-weight:bold;text-align:right}details>summary{cursor:pointer}footer{font-size:90%;margin-top:1em}