:root { color-scheme: light dark; --ink: #1c1b19; --paper: #fbfaf6; --rule: #cfcabd; --blue: #1f3fa6; --bad: #a3271f; }
@media (prefers-color-scheme: dark) { :root { --ink: #ece9e0; --paper: #171614; --rule: #46433c; --blue: #9db4ff; --bad: #ff9a8f; } }
* { box-sizing: border-box; }
body { margin: 0; padding: 2rem 1rem 4rem; background: var(--paper); color: var(--ink); font: 16px/1.5 system-ui, sans-serif; }
main { max-width: 40rem; margin: 0 auto; }
h1 { font: 600 1.6rem/1.2 Georgia, serif; margin: 0 0 .25rem; }
p.note { margin: 0 0 1.5rem; color: color-mix(in srgb, var(--ink) 70%, var(--paper)); }
form > div, fieldset { margin: 0 0 1.1rem; }
label, legend { display: block; font-weight: 600; margin-bottom: .25rem; }
fieldset { border: 1px solid var(--rule); padding: .6rem .9rem .7rem; }
fieldset label, label.tick { font-weight: 400; display: flex; gap: .5rem; align-items: baseline; margin: .15rem 0; }
input[type=text], input[type=email], input[type=tel], input[type=url], input[type=number], input[type=password],
input[type=date], input[type=time], select, textarea { width: 100%; padding: .45rem .55rem; font: inherit; color: inherit;
  background: transparent; border: 1px solid var(--rule); border-radius: 3px; }
textarea { min-height: 6rem; }
button { font: inherit; padding: .5rem 1rem; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); border-radius: 3px; cursor: pointer; }
button[type=reset], button.plain { background: transparent; color: var(--ink); }
.error { color: var(--bad); margin: .2rem 0 0; }
[role=alert] { border-left: 3px solid var(--bad); padding: .5rem .8rem; margin: 0 0 1.2rem; }
[role=status] { border-left: 3px solid var(--blue); padding: .5rem .8rem; margin: 0 0 1.2rem; }
table { border-collapse: collapse; width: 100%; } th, td { text-align: left; padding: .3rem .5rem; border-bottom: 1px solid var(--rule); vertical-align: top; }
pre { overflow-x: auto; padding: .8rem; border: 1px solid var(--rule); }
.picker { position: relative; }
.picker > button { width: 100%; text-align: left; background: transparent; color: inherit; border-color: var(--rule); }
.picker ul { position: absolute; z-index: 2; left: 0; right: 0; margin: .15rem 0 0; padding: .25rem 0; list-style: none;
  background: var(--paper); border: 1px solid var(--ink); border-radius: 3px; }
.picker li { padding: .35rem .6rem; cursor: pointer; } .picker li[aria-selected=true] { font-weight: 600; }
.picker li:hover, .picker li.at { background: color-mix(in srgb, var(--blue) 18%, var(--paper)); }
ul.forms { padding-left: 1.1rem; } ul.forms li { margin: .5rem 0; }