:root {
  color-scheme: light dark;
  --bg: #f6f3ec;
  --card: #ffffff;
  --ink: #17140f;
  --muted: #625c52;
  --line: #ddd7ca;
  --field: #fbfaf7;
  --accent: #2b2575;
  --accent-hover: #1f1a5c;
  --accent-ink: #ffffff;
  --error: #a8261d;
  --ring: rgba(43, 37, 117, 0.28);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121110;
    --card: #1b1917;
    --ink: #f2ede4;
    --muted: #a59e92;
    --line: #2f2b26;
    --field: #221f1b;
    --accent: #bdb6ff;
    --accent-hover: #d0caff;
    --accent-ink: #14120f;
    --error: #ff9a8f;
    --ring: rgba(189, 182, 255, 0.35);
  }
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { margin: 0; min-height: 100%; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

.wrap {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}

.card {
  width: 100%;
  max-width: 460px;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 40px 32px 32px;
  box-shadow: 0 24px 60px -32px rgba(20, 17, 10, 0.35);
}

.eyebrow {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 6vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  font-weight: 700;
}

h2 {
  margin: 0 0 8px;
  font-size: 24px;
  letter-spacing: -0.01em;
}

.lede {
  margin: 0 0 28px;
  color: var(--muted);
}

form { display: grid; gap: 16px; }

label {
  display: grid;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
}

.opt { font-weight: 400; color: var(--muted); }

input {
  width: 100%;
  font: inherit;
  font-size: 17px;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  -webkit-appearance: none;
  appearance: none;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--ring);
}

button {
  margin-top: 6px;
  width: 100%;
  font: inherit;
  font-size: 17px;
  font-weight: 600;
  padding: 14px 18px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  cursor: pointer;
}

button:hover { background: var(--accent-hover); }

button:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--ring); }

button:disabled { opacity: 0.65; cursor: default; }

.status {
  margin: 0;
  min-height: 1.5em;
  font-size: 15px;
  color: var(--error);
}

.fine {
  margin: 20px 0 0;
  font-size: 13px;
  color: var(--muted);
}

.done p { margin: 0; color: var(--muted); }

.done a { color: var(--accent); }

.hp {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}