:root { color-scheme: light; font-family: system-ui, sans-serif; color: #20382f; background: #f5f6f2; line-height: 1.6; }
* { box-sizing: border-box; }
body { margin: 0; }
main { max-width: 680px; margin: 48px auto; padding: 0 28px; }
header { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 12px; border-bottom: 1px solid #d6ddd4; padding-bottom: 22px; }
.brand { font-weight: 750; font-size: 24px; letter-spacing: -1px; text-decoration: none; color: inherit; }
.brand span { color: #6c8758; margin-left: 5px; font-size: 15px; }
small, .hint, footer { color: #516357; font-size: 14px; }
h1 { font-size: clamp(27px, 6vw, 36px); line-height: 1.2; letter-spacing: -1px; margin: 36px 0 16px; }
h2 { font-size: 22px; margin-top: 32px; }
a { color: #285e43; }
fieldset { border: 0; padding: 0; margin: 28px 0; min-width: 0; }
legend { font-weight: 700; font-size: 20px; padding: 0; }
label { display: block; font-weight: 600; margin: 16px 0 6px; }
input { display: block; width: 100%; padding: 11px 12px; font: inherit; color: inherit; background: white; border: 1px solid #aab6a9; border-radius: 6px; }
button { font: inherit; font-weight: 650; padding: 12px 20px; color: white; background: #285e43; border: 1px solid #285e43; border-radius: 6px; cursor: pointer; margin-top: 20px; }
button:hover { background: #1e4933; }
.secondary { background: transparent; color: #285e43; }
.secondary:hover { background: #e7eee5; }
:focus-visible { outline: 3px solid #84642b; outline-offset: 3px; }
.notice { padding: 15px 18px; border-left: 3px solid #47734c; background: #e6eee3; }
.error { color: #772d27; background: #fae9e5; border-color: #a74636; }
.checks { list-style: none; padding: 0; }
.checks li { padding: 6px 0; }
.checks strong { display: inline-block; min-width: 65px; }
summary { cursor: pointer; }
details { margin: 22px 0; }
dt { font-weight: 650; margin-top: 10px; }
dd { margin-left: 0; }
pre { white-space: pre-wrap; overflow-wrap: anywhere; background: #e9eee6; padding: 16px; border-radius: 6px; }
footer { border-top: 1px solid #d6ddd4; margin-top: 40px; padding: 22px 0; }
@media (max-width: 500px) { main { margin-top: 24px; padding: 0 20px; } button { width: 100%; } }