:root { color-scheme: light dark; font-family: system-ui, sans-serif; --bg: #fff; --ink: #202520; --line: #c8d0c8; --soft: #f0f5f1; --accent: #1b6b4b; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); }
main { max-width: 720px; padding: 20px; margin: auto; }
header { display: flex; gap: 12px; align-items: baseline; flex-wrap: wrap; }
header strong { font-size: 22px; }
header span, .muted, footer { font-size: 13px; opacity: .8; }
p { line-height: 1.5; }
.notice { background: var(--soft); padding: 12px; border-radius: 8px; font-size: 13px; }
nav { display: flex; gap: 8px; margin: 18px 0; }
label { display: block; font-size: 14px; margin: 12px 0 6px; }
input:not([type=checkbox]), textarea, select { width: 100%; padding: 10px; font: inherit; background: var(--bg); color: var(--ink); border: 1px solid var(--line); border-radius: 6px; }
textarea { resize: vertical; }
.options { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.consent { display: flex; align-items: flex-start; gap: 8px; line-height: 1.5; }
.consent input { margin-top: 4px; flex-shrink: 0; }
button { padding: 10px 14px; margin: 6px 4px 6px 0; border: 1px solid var(--line); border-radius: 7px; background: var(--bg); color: var(--ink); cursor: pointer; font: inherit; font-size: 14px; }
button[aria-pressed=true], .primary { background: var(--accent); color: #fff; border-color: var(--accent); }
button:disabled { opacity: .5; cursor: wait; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
#error { color: #b42318; }
footer { display: flex; gap: 18px; margin-top: 24px; }
a { color: var(--accent); }
h1 { font-size: 20px; }
[hidden] { display: none !important; }
@media (max-width: 420px) { main { padding: 14px; } .options { grid-template-columns: 1fr; gap: 0; } }
@media (prefers-color-scheme: dark) { :root { --bg: #212121; --ink: #f3f5f3; --line: #556055; --soft: #293a30; --accent: #67be91; } .primary, button[aria-pressed=true] { color: #14251a; } #error { color: #ffb4aa; } }