:root { color-scheme: light dark; --bg: #f1f5f3; --card: #fff; --text: #172b23; --muted: #52645b; --line: #a5b9af; --accent: #176044; --notice: #fff3ed; --error: #963211; }
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 1rem/1.6 system-ui, sans-serif; }
main { max-width: 680px; margin: 40px auto; padding: 0 20px; }
a { color: var(--accent); text-underline-offset: 3px; }
.back { display: inline-block; margin-bottom: 20px; }
.card { padding: 36px; background: var(--card); border: 1px solid var(--line); border-radius: 20px; box-shadow: 0 12px 36px #183c2810; }
.eyebrow { margin: 0 0 8px; color: var(--accent); font-size: .8rem; font-weight: 750; letter-spacing: .16em; }
h1 { margin: 0; font-size: clamp(1.7rem, 5vw, 2.1rem); line-height: 1.2; }
h2 { font-size: 1.2rem; }
.intro { margin: 16px 0 28px; color: var(--muted); }
label { display: block; margin-top: 22px; margin-bottom: 6px; font-weight: 650; }
label span, .hint, .privacy { color: var(--muted); font-size: .875rem; font-weight: 400; }
input, textarea { display: block; width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--text); font: inherit; }
textarea { resize: vertical; min-height: 160px; }
.hint { margin: 6px 0 0; }
button, .button { display: inline-block; margin-top: 26px; padding: 12px 24px; border: 0; border-radius: 9px; background: var(--accent); color: var(--card); font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
.privacy { margin: 16px 0 0; }
.notice { margin: 20px 0; padding: 12px 16px; border: 1px solid var(--error); border-radius: 8px; background: var(--notice); }
.notice p { margin: 0; }
.notice a, .field-error { color: var(--error); }
.field-error { margin: 6px 0 0; font-size: .9rem; }
[aria-invalid="true"] { border-color: var(--error); }
.website-field { display: none; }
.success { margin-top: 24px; }
@media (max-width: 480px) { main { margin: 20px auto; padding: 0 14px; } .card { padding: 24px 20px; } button { width: 100%; } }
@media (prefers-color-scheme: dark) { :root { --bg: #101c17; --card: #192b23; --text: #edf6f1; --muted: #b9cec2; --line: #597a69; --accent: #8fdcb4; --notice: #392820; --error: #ffb799; } }