/* 既存 site.css に影響を与えない最小追加 */
.container { display: flex; justify-content: center; padding: 96px 24px; }
.form-card { width: min(980px, 100%); background: #fff; border: 1px solid #e6e6e6; border-radius: 14px; box-shadow: 0 10px 30px rgba(0,0,0,.06); padding: 24px; }
.form-header { margin-bottom: 16px; }
.form-title { font-size: 22px; font-weight: 700; margin-bottom: 6px; }
.form-note { color: #666; font-size: 13px; }

.fieldset { background: #fafafa; border: 1px solid #ececec; border-radius: 12px; padding: 16px; margin: 18px 0; }
.legend { font-weight: 700; margin-bottom: 10px; }
.legend small { font-weight: 400; color: #666; margin-left: 6px; }

.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 720px) { .grid { grid-template-columns: 1fr; } }

.field { display: flex; flex-direction: column; gap: 6px; }
.field.full { grid-column: 1 / -1; }
.label { font-size: 13px; font-weight: 600; color: #333; display: flex; align-items: center; gap: 8px; }
.badge { display: inline-block; padding: 2px 6px; border-radius: 999px; font-size: 11px; line-height: 1; }
.badge.req { background: #fbe9ea; color: #d32f2f; }
.badge.opt { background: #eef0f2; color: #6b7280; }

input[type="text"], input[type="email"] {
  appearance: none; width: 100%;
  border: 1px solid #e0e0e0; border-radius: 10px; background: #fff;
  padding: 14px 12px; font-size: 14px; outline: none;
}
input:focus { border-color: #4b9cfb; box-shadow: 0 0 0 3px rgba(75,156,251,.15); }

.hint { color: #9aa0a6; font-size: 11px; }

.confirm { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 14px; }
.confirm input { width: 18px; height: 18px; }

.actions { margin-top: 16px; }
.button.primary {
  background: #4b9cfb; color: #fff; border: none; border-radius: 12px;
  padding: 12px 20px; font-weight: 700; cursor: pointer;
}
.button.primary:disabled { opacity: .6; cursor: not-allowed; }

.message { margin-top: 8px; padding: 10px 12px; border-radius: 10px; font-size: 13px; }
.message.ok { background: #eef7ee; color: #0b6b0b; border: 1px solid #c9e7c9; }
.message.err { background: #fdf0f2; color: #b4232a; border: 1px solid #f3c1c5; }