.form-intro {
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.form-intro p {
  margin: 0 0 var(--space-sm) 0;
}

.form-intro p:last-child {
  margin-bottom: 0;
}

.form-notice-box {
  background-color: #fffbf2;
  border: 1px solid #ffeeba !important;
  border-radius: 8px;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #7a5f13;
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
}

.form-notice-title {
  color: #dc3545;
  font-size: 1rem;
  font-weight: 700;
  margin: 0 0 var(--space-xs) 0;
}

.formWrap {
  max-width: 100%;
  margin: var(--space-xl) 0 var(--space-section) 0;
  background: #ffffff;
  border: 1px solid #e2e8f0;
  border-radius: 12px;
  box-shadow:
    0 4px 6px -1px rgba(0, 0, 0, 0.05),
    0 2px 4px -1px rgba(0, 0, 0, 0.02);
  padding: var(--space-lg);
}

@media screen and (max-width: 600px) {
  .formWrap {
    padding: var(--space-md) var(--space-sm);
    margin-top: var(--space-lg);
    margin-bottom: var(--space-lg);
  }
}

.formWrap h4 {
  font-family: var(--font-sans);
  font-size: 1.2rem;
  font-weight: 700;
  color: #0f172a;
  border-bottom: 2px solid #0f172a !important;
  padding-bottom: var(--space-xs);
  margin-top: var(--space-2xl) !important;
  margin-bottom: var(--space-lg) !important;
}

.formWrap h4:first-child,
.formWrap section > form > h4:first-child {
  margin-top: 0 !important;
}

.form-group {
  padding-top: var(--space-md);
  padding-bottom: var(--space-md);
  margin-bottom: 0 !important;
  border-bottom: 1px solid #e2e8f0;
  box-sizing: border-box;
}

.formWrap h4 + .form-group,
.form-group:first-of-type,
.formWrap section > form > .form-group:first-child {
  padding-top: 0;
}

fieldset.form-group {
  border: none !important;
  border-bottom: 1px solid #e2e8f0 !important;
  padding-left: 0 !important;
  padding-right: 0 !important;
  margin-left: 0 !important;
  margin-right: 0 !important;
  min-inline-size: auto;
}

.form-group:last-of-type,
.form-group:last-child {
  border-bottom: none;
  padding-bottom: 0;
  margin-bottom: 0 !important;
}

.form-group.row,
.form-group .row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  margin-left: 0;
  margin-right: 0;
}

.col-sm-4 {
  flex: 0 0 32%;
  max-width: 32%;
  padding-right: var(--space-md);
  box-sizing: border-box;
}

.col-sm-8 {
  flex: 0 0 68%;
  max-width: 68%;
  box-sizing: border-box;
}

.row .col {
  flex: 1 1 0%;
  padding: 0 6px;
  box-sizing: border-box;
}

.row .col:first-child {
  padding-left: 0;
}

.row .col:last-child {
  padding-right: 0;
}

@media screen and (max-width: 768px) {
  .col-sm-4,
  .col-sm-8 {
    flex: 0 0 100%;
    max-width: 100%;
    padding-right: 0;
  }

  .col-sm-4 {
    margin-bottom: var(--space-xs);
  }
}

.col-form-label,
label.col-form-label {
  font-weight: 700;
  color: #0f172a;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: var(--space-form-label);
  line-height: 1.5;
  padding-top: 10px;
  margin-bottom: 0;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem !important;
  font-size: 11px !important;
  font-weight: 700 !important;
  border-radius: 4px !important;
  line-height: 1 !important;
}

.badge-danger,
.badge.badge-danger {
  background-color: #ef4444 !important;
  color: #ffffff !important;
}

.badge-secondary,
.badge.badge-secondary {
  background-color: #94a3b8 !important;
  color: #ffffff !important;
}

.form-control {
  border: 1px solid #cbd5e1 !important;
  border-radius: 6px !important;
  padding: 10px 14px !important;
  height: 44px;
  box-sizing: border-box !important;
  font-size: 0.95rem !important;
  color: #0f172a !important;
  background-color: #ffffff !important;
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease !important;
  width: 100%;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02) !important;
}

.form-control:focus {
  border-color: var(--secondary-color) !important;
  box-shadow:
    0 0 0 3px var(--secondary-light, rgba(2, 132, 199, 0.15)),
    inset 0 1px 2px rgba(0, 0, 0, 0.02) !important;
  outline: none !important;
  background-color: #ffffff !important;
}

textarea.form-control {
  height: auto !important;
  min-height: 120px;
  line-height: 1.6 !important;
}

select.form-control,
select.custom-select {
  border: 1px solid #cbd5e1 !important;
  border-radius: 6px !important;
  padding: 10px 14px !important;
  height: 44px !important;
  box-sizing: border-box !important;
  font-size: 0.95rem !important;
  color: #0f172a !important;
  background-color: #ffffff !important;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02) !important;
  cursor: pointer;
  vertical-align: middle;
}

select.form-control:focus,
select.custom-select:focus {
  border-color: var(--secondary-color) !important;
  box-shadow: 0 0 0 3px var(--secondary-light, rgba(2, 132, 199, 0.15)) !important;
}

.custom-select.w-25 {
  width: auto !important;
  min-width: 96px;
  margin-right: 4px;
  display: inline-block !important;
}

.birth-select-row {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.form-note {
  margin: 8px 0 0 0 !important;
  color: #64748b !important;
  font-size: 0.85rem !important;
  line-height: 1.5 !important;
}

.form-check {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
  padding-left: 0 !important;
}

.col-sm-8 > .form-check:first-child {
  margin-top: 10px;
}

.form-check:last-child {
  margin-bottom: 0 !important;
}

.form-check-input {
  position: relative !important;
  margin-top: 0 !important;
  margin-left: 0 !important;
  margin-right: 8px !important;
  width: 18px !important;
  height: 18px !important;
  border: 1px solid #cbd5e1 !important;
  border-radius: 4px;
  outline: none !important;
  cursor: pointer;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-color: #fff;
  transition:
    background-color 0.2s,
    border-color 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.form-check-input[type="radio"] {
  border-radius: 50% !important;
}

.form-check-input:checked {
  background-color: var(--secondary-color) !important;
  border-color: var(--secondary-color) !important;
}

.form-check-input:checked::after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  background-color: #fff;
}

.form-check-input[type="radio"]:checked::after {
  border-radius: 50%;
}

.form-check-input[type="checkbox"]:checked::after {
  width: 4px;
  height: 8px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
  background-color: transparent;
}

.form-check-label {
  color: #334155 !important;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  user-select: none;
}

.border.bg-gray {
  background-color: #f8fafc !important;
  border: 1px solid #e2e8f0 !important;
  border-radius: 8px !important;
  padding: var(--space-md) !important;
  margin-bottom: var(--space-lg) !important;
}

.border.bg-gray p {
  font-size: 0.9rem;
  line-height: 1.7;
  color: #475569;
}

.form-privacy-group {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-lg);
  display: flex;
  justify-content: center;
  align-items: center;
}

.form-privacy-group .form-check {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0 !important;
  margin-bottom: 0 !important;
}

.form-privacy-group .form-check-label {
  font-weight: 700;
  color: #0f172a !important;
  font-size: 0.95rem;
}

/* ==========================================================================
   統一フォームボタンスタイル (Form Button UI/UX System)
   ========================================================================== */
.form-btn-group {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

/* 共通ボタンスタイル */
.form-btn,
.btn-danger,
.btn-outline-dark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-width: 180px;
  min-height: 50px;
  padding: 12px 32px;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  border-radius: 2px;
  text-decoration: none;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
  box-shadow: 0 4px 14px rgba(17, 24, 35, 0.06);
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  background: #ffffff;
  border: 1px solid rgba(17, 24, 35, 0.4);
  color: var(--color-ink, #111823);
  line-height: 1.5;
}

/* スライドインアニメーション用 pseudo-element */
.form-btn::before,
.btn-danger::before,
.btn-outline-dark::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 0%;
  height: 100%;
  transition: width 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 1;
}

/* テキストとアイコンのスタッキングコンテキスト & トランジション */
.form-btn span,
.form-btn i,
.form-btn .form-btn__icon,
.btn-danger span,
.btn-danger i,
.btn-outline-dark span,
.btn-outline-dark i {
  position: relative;
  z-index: 2;
  transition: color 0.3s ease, transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.form-btn i,
.btn-danger i,
.btn-outline-dark i {
  font-size: 0.9rem;
}

.form-btn__arrow {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  position: relative;
  z-index: 2;
  transform: translateY(-1px);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), color 0.3s ease;
}

.form-btn__icon {
  position: relative;
  z-index: 2;
  width: 15px;
  height: 15px;
  display: inline-block;
  vertical-align: middle;
  object-fit: contain;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), filter 0.3s ease;
}

/* --- プライマリボタン（送信 / 確認画面へ / トップへ戻る / btn-danger） --- */
.form-btn--submit,
.form-btn--primary,
.btn-danger {
  background: #ffffff !important;
  border: 1px solid rgba(17, 24, 35, 0.4) !important;
  color: var(--color-ink, #111823) !important;
}

.form-btn--submit::before,
.form-btn--primary::before,
.btn-danger::before {
  background: var(--color-header-navy, #07172b);
}

.form-btn--submit span,
.form-btn--primary span,
.btn-danger span {
  color: var(--color-ink, #111823) !important;
}

.form-btn--submit i,
.form-btn--submit .form-btn__icon,
.form-btn--submit .form-btn__arrow,
.form-btn--primary i,
.form-btn--primary .form-btn__icon,
.form-btn--primary .form-btn__arrow,
.btn-danger i {
  color: var(--color-header-navy-accent, #0b2f56);
}

.form-btn--submit:hover,
.form-btn--primary:hover,
.btn-danger:hover {
  border-color: var(--color-header-navy, #07172b) !important;
  box-shadow: 0 8px 24px rgba(7, 23, 43, 0.15);
}

.form-btn--submit:hover::before,
.form-btn--primary:hover::before,
.btn-danger:hover::before {
  width: 100%;
}

.form-btn--submit:hover span,
.form-btn--submit:hover i,
.form-btn--submit:hover .form-btn__icon,
.form-btn--submit:hover .form-btn__arrow,
.form-btn--primary:hover span,
.form-btn--primary:hover i,
.form-btn--primary:hover .form-btn__icon,
.form-btn--primary:hover .form-btn__arrow,
.btn-danger:hover span,
.btn-danger:hover i {
  color: #ffffff !important;
}

/* 右向きアイコン・送信アイコンのスライド */
.form-btn--submit:hover .form-btn__arrow,
.btn-danger:hover .form-btn__arrow {
  transform: translate(4px, -1px);
}

.form-btn--submit:hover .form-btn__icon,
.btn-danger:hover .form-btn__icon {
  filter: brightness(0) invert(1);
  transform: translate(4px, -1px);
}

/* トップへ戻る（左向きアイコン）のスライド */
.form-btn--primary:hover .form-btn__arrow,
.form-btn--primary:hover .form-btn__icon {
  transform: translate(-4px, -1px);
}

/* --- セカンダリ / 戻るボタン（修正する / 前画面に戻る / btn-outline-dark） --- */
.form-btn--back,
.btn-outline-dark {
  background-color: #ffffff !important;
  border: 1px solid #cbd5e1 !important;
  color: #334155 !important;
}

.form-btn--back::before,
.btn-outline-dark::before {
  background: var(--color-header-navy, #07172b);
}

.form-btn--back span,
.btn-outline-dark span {
  color: #334155 !important;
}

.form-btn--back i,
.form-btn--back .form-btn__icon,
.form-btn--back .form-btn__arrow,
.btn-outline-dark i {
  color: #64748b;
}

.form-btn--back:hover,
.btn-outline-dark:hover {
  border-color: var(--color-header-navy, #07172b) !important;
  box-shadow: 0 8px 24px rgba(7, 23, 43, 0.12);
}

.form-btn--back:hover::before,
.btn-outline-dark:hover::before {
  width: 100%;
}

.form-btn--back:hover span,
.form-btn--back:hover i,
.form-btn--back:hover .form-btn__icon,
.form-btn--back:hover .form-btn__arrow,
.btn-outline-dark:hover span,
.btn-outline-dark:hover i {
  color: #ffffff !important;
}

.form-btn--back:hover .form-btn__arrow,
.form-btn--back:hover .form-btn__icon,
.btn-outline-dark:hover .form-btn__arrow,
.btn-outline-dark:hover .form-btn__icon {
  transform: translate(-4px, -1px);
}

/* --- リセットボタン --- */
.form-btn--reset {
  background-color: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
  color: #64748b !important;
}

.form-btn--reset::before {
  background: #475569;
}

.form-btn--reset span {
  color: #64748b !important;
}

.form-btn--reset i,
.form-btn--reset .form-btn__icon {
  color: #94a3b8;
}

.form-btn--reset:hover {
  border-color: #475569 !important;
  box-shadow: 0 6px 18px rgba(71, 85, 105, 0.15);
}

.form-btn--reset:hover::before {
  width: 100%;
}

.form-btn--reset:hover span {
  color: #ffffff !important;
}

.form-btn--reset:hover .form-btn__icon {
  filter: brightness(0) invert(1);
  transform: rotate(-45deg);
}

/* アクティブ状態 */
.form-btn:active,
.btn-danger:active,
.btn-outline-dark:active {
  transform: scale(0.98);
}

/* モバイル対応 */
@media screen and (max-width: 600px) {
  .form-btn-group {
    flex-direction: column-reverse;
    gap: 12px;
    width: 100%;
  }

  .form-btn,
  .btn-danger,
  .btn-outline-dark {
    width: 100%;
    min-width: 0;
    padding: 14px 20px;
  }
}

/* バリデーションスタイル */
.form-control.is-invalid,
.custom-select.is-invalid,
textarea.is-invalid {
  border-color: #dc3545 !important;
  background-color: #fff8f8 !important;
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.15) !important;
}

.form-check-input.is-invalid ~ .form-check-label {
  color: #dc3545;
  font-weight: 700;
}

.form-privacy-group.is-invalid {
  border: 1px solid #dc3545;
  background-color: #fff8f8;
  border-radius: 6px;
  padding: 12px;
}

.invalid-feedback {
  display: none;
  width: 100%;
  margin-top: 6px;
  font-size: 0.825rem;
  color: #ef4444 !important;
  font-weight: 600;
}

.invalid-feedback.is-visible {
  display: block !important;
}

/* 確認画面表示用スタイル */
.confirm-value {
  padding: 10px 0;
  font-size: 0.95rem;
  line-height: 1.7;
  color: #1e293b;
  word-break: break-word;
  white-space: pre-wrap;
  font-weight: 500;
}

.confirm-lead-text {
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-lg);
  text-align: center;
}

.form-text.text-muted {
  color: #64748b !important;
  font-size: 0.8rem !important;
  margin-top: 0.375rem !important;
}

/* --- エラー画面用スタイル --- */
.error-box {
  background: #ffffff;
  border: 1px solid #fed7d7;
  border-radius: 12px;
  padding: var(--space-xl);
  margin: var(--space-lg) 0;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.error-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #e53e3e;
  margin-bottom: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.error-lead {
  color: #475569;
  font-size: 0.95rem;
  line-height: 1.7;
  text-align: center;
  margin-bottom: var(--space-lg);
}

.error-items {
  background: #fff5f5;
  border: 1px solid #feb2b2;
  border-radius: 8px;
  padding: var(--space-md) var(--space-lg);
  margin: 0 auto var(--space-xl);
  max-width: 600px;
  list-style: none;
}

.error-items li {
  color: #c53030;
  font-size: 0.95rem;
  line-height: 1.8;
  display: flex;
  align-items: center;
  gap: 8px;
}

.error-items li::before {
  content: "⚠️";
  font-size: 0.9rem;
}

.error-actions {
  display: flex;
  justify-content: center;
}