:root { --fg: #1b2530; --bg: #ffffff; --muted: #5b6673; --line: #c9d1da; --accent: #0b5cad; --bad: #a11c1c; }
@media (prefers-color-scheme: dark) { :root { --fg: #e7ebf0; --bg: #14181d; --muted: #a2adba; --line: #3a4552; --accent: #6db3f2; --bad: #ff8a8a; } }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 16px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif; }
main { max-width: 760px; margin: 0 auto; padding: 24px 16px 64px; }
h1 { margin: 0 0 4px; font-size: 1.6rem; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 20px 0; padding: 12px 16px 16px; }
legend { font-weight: 600; padding: 0 6px; }
label { display: block; margin-top: 12px; font-size: .95rem; }
label.inline { display: inline-block; margin-right: 20px; }
input, textarea { display: block; width: 100%; margin-top: 4px; padding: 8px; font: inherit; color: var(--fg); background: var(--bg); border: 1px solid var(--line); border-radius: 6px; }
input[type=radio], input[type=checkbox] { display: inline; width: auto; margin: 0 6px 0 0; }
input:focus, textarea:focus, button:focus-visible { outline: 3px solid var(--accent); outline-offset: 1px; }
.req { color: var(--muted); font-size: .8rem; margin-left: 6px; }
.hint, footer { color: var(--muted); font-size: .85rem; }
.notice { border-left: 4px solid var(--bad); padding: 6px 12px; }
.error { color: var(--bad); border: 1px solid var(--bad); padding: 8px 12px; border-radius: 6px; }
.bad { border-color: var(--bad); }
.trap { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
button { padding: 10px 22px; font: inherit; font-weight: 600; color: #fff; background: var(--accent); border: 0; border-radius: 6px; cursor: pointer; }
@media (prefers-color-scheme: dark) { button { color: #0b1620; } }
button[disabled] { opacity: .6; cursor: progress; }
a { color: var(--accent); }
.recaptcha-note { text-align: center; font-size: .8rem; color: var(--muted); margin-top: 24px; }
footer { text-align: center; }