:root {
  --pink: #ff9aa2;
  --pink-dark: #e07b86;
  --bg: #fff5f7;
  --text: #3a2b30;
  --muted: #8a7a80;
  --error: #c0392b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
  padding: 16px;
}
.card {
  background: #fff;
  border-radius: 18px;
  padding: 32px 28px;
  max-width: 440px;
  width: 100%;
  box-shadow: 0 10px 40px rgba(224, 123, 134, 0.18);
}
h1 { margin: 0 0 12px; font-size: 1.4rem; }
.lead { color: var(--text); line-height: 1.7; }
.hint { color: var(--muted); font-size: 0.85rem; margin: 6px 0 18px; }
.foot { color: var(--muted); font-size: 0.85rem; margin-top: 20px; }
.error { color: var(--error); background: #fdecea; padding: 10px 12px; border-radius: 8px; }
label { display: block; font-weight: 600; margin-bottom: 6px; }
input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid #f0d5da;
  border-radius: 10px;
  font-size: 1rem;
}
input[type="text"]:focus { outline: none; border-color: var(--pink); }
button.primary {
  margin-top: 8px;
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: var(--pink);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
}
button.primary:hover { background: var(--pink-dark); }
a { color: var(--pink-dark); }