/* =========================================================
   記念日お知らせ登録フォーム
   既存サイト（ダーク）のトンマナに統一。
   survey.css と同系統。--brand / --muted / --border を使用。
========================================================= */

.register-page {
  min-height: auto;
}

.register-page-header {
  margin-bottom: 24px;
  scroll-margin-top: 96px;
}

.register-meta {
  display: flex;
  justify-content: center;
  margin-bottom: 24px;
}

.register-meta-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  border-radius: 999px;
  background: rgba(219, 178, 120, 0.08);
  border: 1px solid rgba(219, 178, 120, 0.24);
  color: var(--brand);
  font-size: 0.88rem;
  letter-spacing: 0.04em;
}

.register-shell {
  max-width: 760px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
}

.register-form {
  display: grid;
  gap: 28px;
}

.register-section {
  display: grid;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border);
}

.register-section:last-of-type {
  padding-bottom: 0;
  border-bottom: 0;
}

.register-section-header {
  display: grid;
  gap: 8px;
}

.register-section-header h3 {
  margin: 0;
  color: #fff;
  font-size: 1.15rem;
}

.register-section-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.register-grid {
  display: grid;
  gap: 16px;
}

.register-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.register-help {
  display: block;
  margin-top: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.6;
}

.register-fieldset {
  border: 0;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 12px;
}

.register-fieldset legend {
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  font-family: var(--font-ja);
}

.register-options {
  display: grid;
  gap: 12px;
}

.register-options-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.register-options-inline {
  grid-auto-flow: column;
  grid-auto-columns: minmax(0, 1fr);
  gap: 12px;
}

.register-options-stack {
  gap: 10px;
}

.register-options label {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  padding: 12px 16px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  letter-spacing: normal;
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.register-options label:hover {
  border-color: rgba(219, 178, 120, 0.36);
}

.register-options input {
  width: auto;
  margin: 0;
  accent-color: var(--brand);
}

/* 紹介者欄（条件表示） */
.register-referrer[hidden] {
  display: none;
}

/* お子さまカード */
.register-child {
  display: grid;
  gap: 16px;
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}

.register-child + .register-child {
  margin-top: 16px;
}

.register-child-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.register-child-label {
  color: var(--brand);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  font-family: var(--font-en);
}

.register-child-remove {
  appearance: none;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.register-child-remove:hover {
  color: var(--brand);
  border-color: rgba(219, 178, 120, 0.36);
}

.register-gender {
  align-self: start;
}

.register-add-child {
  appearance: none;
  justify-self: start;
  border: 1px dashed rgba(219, 178, 120, 0.4);
  background: rgba(219, 178, 120, 0.05);
  color: var(--brand);
  font-family: var(--font-ja);
  font-size: 0.95rem;
  padding: 12px 20px;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.register-add-child:hover {
  background: rgba(219, 178, 120, 0.1);
  border-color: rgba(219, 178, 120, 0.6);
}

.register-add-child[hidden] {
  display: none;
}

/* 送信 */
.register-submit {
  display: grid;
  gap: 14px;
  margin-top: 8px;
}

.register-submit .btn.large {
  width: 100%;
}

.register-privacy {
  margin: 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.75;
  text-align: center;
}

.required {
  color: var(--brand);
  font-size: 0.78rem;
}

/* エラー状態 */
.register-form .is-error input,
.register-form input.is-error,
.register-form select.is-error,
.register-form textarea.is-error {
  border-color: #d98b7a;
}

.register-form fieldset.is-error legend {
  color: #d98b7a;
}

.register-form fieldset.is-error .register-options label {
  border-color: rgba(217, 139, 122, 0.5);
}

/* ハニーポット */
.register-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* 完了画面 */
.register-done {
  display: grid;
  gap: 16px;
  justify-items: center;
  text-align: center;
  padding: 16px 8px;
}

.register-done-eyebrow {
  margin: 0;
  color: var(--brand);
  font-family: var(--font-en);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}

.register-done h2 {
  margin: 0;
  color: #fff;
  font-size: 1.5rem;
}

.register-done p {
  margin: 0;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.9;
}

.register-line-btn {
  margin-top: 8px;
}

.register-done-sub {
  margin-top: 8px;
  font-size: 0.9rem;
}

.register-done-sub a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.register-done-sub a:hover {
  color: var(--brand);
}

@media (max-width: 768px) {
  .register-shell {
    padding: 28px 20px;
    border-radius: 12px;
  }

  .register-grid-2 {
    grid-template-columns: 1fr;
  }

  .register-options-grid {
    grid-template-columns: 1fr;
  }

  .register-options label {
    padding: 12px 14px;
    font-size: 0.92rem;
  }

  .register-child {
    padding: 18px 16px;
  }

  .register-page .lead {
    font-size: 0.98rem;
  }
}