:root {
  color-scheme: light dark;
  --fg: #14171a;
  --muted: #5b6672;
  --bg: #f4f6f8;
  --card: #ffffff;
  --line: #d5dbe1;
  --accent: #1f6feb;
  --accent-fg: #ffffff;
  --error: #b42318;
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --fg: #e8eaed;
    --muted: #9aa5b1;
    --bg: #101317;
    --card: #191d23;
    --line: #2f3640;
    --accent: #4b8bf5;
    --error: #f97066;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

main {
  max-width: 620px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.masthead { margin-bottom: 28px; }
.eyebrow {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
h1 { margin: 0 0 10px; font-size: 28px; line-height: 1.25; }
.lede { margin: 0; color: var(--muted); }

.notice {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--muted);
}

form { display: grid; gap: 20px; }

fieldset {
  margin: 0;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
}

legend {
  padding: 0 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
}

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 520px) { .row { grid-template-columns: 1fr; } }

.field { display: block; margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }

label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 5px; }
.req { color: var(--accent); }

input[type="text"], input[type="email"], input[type="tel"],
input[type="number"], input[type="date"], input:not([type]), select, textarea {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  color: var(--fg);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
}

textarea { resize: vertical; }

input:focus-visible, select:focus-visible, textarea:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.choices { display: grid; gap: 8px; }
.choice {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 400;
  margin: 0;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg);
  cursor: pointer;
}
.choice input { margin: 0; width: auto; accent-color: var(--accent); }

.hint { margin: 6px 0 0; font-size: 13px; color: var(--muted); }

.turnstile:empty { display: none; }

button {
  padding: 13px 18px;
  font: inherit;
  font-weight: 650;
  color: var(--accent-fg);
  background: var(--accent);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
button[disabled] { opacity: .65; cursor: default; }

.msg { margin: 0; min-height: 1.5em; color: var(--error); font-size: 14px; }
.fineprint { margin: 0; font-size: 13px; color: var(--muted); }

.done {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
}
.done h2 { margin: 0 0 8px; font-size: 20px; }
.done p { margin: 0; color: var(--muted); }