:root { color-scheme: light; }
* { box-sizing: border-box; }
body { max-width: 760px; margin: 0 auto; padding: 0 20px; font: 16px/1.5 Arial, Helvetica, sans-serif; color: #111; background: #fff; }
header { display: flex; flex-wrap: wrap; gap: 12px 24px; padding: 22px 0; border-bottom: 1px solid #aaa; }
a { color: #0000bb; }
.brand { color: #111; font-size: 20px; font-weight: bold; text-decoration: none; }
header span { align-self: center; }
main { padding-top: 28px; }
h1 { font-size: 26px; margin: 0 0 12px; }
h2 { font-size: 20px; margin: 0 0 8px; }
p { margin: 8px 0 16px; }
.notice { padding: 16px; border: 1px solid #888; background: #f6f6f6; margin: 24px 0; }
.notice p { margin-bottom: 0; }
section { padding: 22px 0; border-top: 1px solid #ccc; }
.button { display: inline-block; min-height: 44px; padding: 9px 14px; border: 1px solid #777; border-radius: 2px; background: #eee; color: #111; text-decoration: none; }
.button:hover { background: #ddd; }
:focus-visible { outline: 3px solid #154db3; outline-offset: 3px; }
footer { border-top: 1px solid #aaa; padding: 20px 0 32px; }
[hidden] { display: none !important; }

fieldset { padding: 0; margin: 16px 0; border: 0; max-width: 420px; }
legend { font-size: 14px; margin-bottom: 8px; }
label { display: block; margin: 12px 0 5px; font-weight: bold; }
input { width: 100%; padding: 10px; min-height: 44px; border: 1px solid #888; font: inherit; border-radius: 0; }
input:disabled { background: #f5f5f5; }
button { margin-top: 14px; min-height: 44px; padding: 8px 12px; font: inherit; }