/*
 * contact.css (Phase3-2 staging)
 * デザイン本体はPhase2.2確定版(contact-v3.css)と完全に同一。
 * 今回追加したのは、入力→確認→送信→完了フローに必要な新規クラスのみ
 * （エラー表示・確認画面・完了画面・honeypot非表示）。
 * 既存の共通CSS(base/layout/components/pages/utilities/responsive)は無変更。
 */

:root {
  --c3-ink: #432;
  --c3-brand: #543;
  --c3-brand-dark: #3d2f22;
  --c3-brand-soft: #f7f2ee;
  --c3-accent-blue: #0bd;
  --c3-border: #ddd6cd;
  --c3-bg: #ffffff;
  --c3-radius: 14px;
  --c3-error: #b3261e;
  --c3-error-soft: #fdeaea;
}

#mail-home {
  background: var(--c3-bg);
}

/* 共通：inline SVGアイコン */
.p-contact3__icon,
.p-contact3__icon-inline,
.p-contact3__card-icon svg,
.p-contact3__card-check svg,
.p-contact3__complete-icon {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.p-contact3__icon {
  width: 1.4rem;
  height: 1.4rem;
  flex-shrink: 0;
}

.p-contact3__icon-inline {
  width: 1.05rem;
  height: 1.05rem;
  vertical-align: -0.15em;
}

.p-contact3__section-title {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--c3-ink);
  text-align: center;
  margin: 0 0 0.6rem;
}

.p-contact3__section-sub {
  color: var(--c3-ink);
  opacity: 0.8;
  margin: 0 0 2.25rem;
  font-size: 1.05rem;
}

/* ---------- 1. Hero ---------- */
.p-contact3__hero {
  background: linear-gradient(180deg, var(--c3-brand-soft) 0%, var(--c3-bg) 100%);
  padding: 3rem 2rem 2.5rem;
  border-bottom: 1px solid var(--c3-border);
}

.p-contact3__hero-inner {
  text-align: center;
  max-width: 780px;
}

.p-contact3__eyebrow {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c3-brand);
  text-align: center;
  margin: 0 0 0.6rem;
  opacity: 0.85;
}

.p-contact3__h1 {
  font-size: 2.6rem;
  font-weight: 700;
  color: var(--c3-ink);
  margin: 0 0 1.25rem;
  line-height: 1.3;
}

.p-contact3__lead {
  font-size: 1.15rem;
  line-height: 1.9;
  color: var(--c3-ink);
  margin: 0;
  text-align: left;
}

/* ---------- 2〜3. カテゴリカード ---------- */
.p-contact3__categories {
  padding: 3.5rem 1rem;
}

.p-contact3__categories-inner {
  max-width: 1040px;
  margin: 0 auto;
}

.p-contact3__card-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.p-contact3__card {
  position: relative;
  width: 100%;
  min-height: 148px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  text-align: left;
  background: #fff;
  border: 1.5px solid var(--c3-border);
  border-radius: var(--c3-radius);
  padding: 1.4rem 1.25rem;
  cursor: pointer;
  font-family: inherit;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.p-contact3__card:hover,
.p-contact3__card:focus-visible {
  border-color: var(--c3-brand);
  outline: none;
}

.p-contact3__card:focus-visible {
  outline: 2px solid var(--c3-accent-blue);
  outline-offset: 2px;
}

.p-contact3__card.is-selected {
  border-color: var(--c3-brand);
  background: var(--c3-brand-soft);
}

/* 選択中カードのタイトル・補足説明・アイコンの整列を明示的に左寄せに固定する
   （カード枠自体の位置・サイズ、選択色・チェック表示は変更しない） */
.p-contact3__card.is-selected {
  text-align: left;
  align-items: flex-start;
}

.p-contact3__card.is-selected .p-contact3__card-title,
.p-contact3__card.is-selected .p-contact3__card-caption {
  text-align: left;
}

.p-contact3__card-check {
  position: absolute;
  top: 0.9rem;
  right: 0.9rem;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--c3-brand);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.p-contact3__card-check svg {
  width: 14px;
  height: 14px;
  stroke-width: 2.5;
}

.p-contact3__card.is-selected .p-contact3__card-check {
  opacity: 1;
  transform: scale(1);
}

.p-contact3__card-icon {
  color: var(--c3-brand);
  background: var(--c3-brand-soft);
  border-radius: 50%;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.p-contact3__card-icon svg {
  width: 28px;
  height: 28px;
}

.p-contact3__card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--c3-ink);
  line-height: 1.45;
}

.p-contact3__card-caption {
  font-size: 0.95rem;
  color: var(--c3-ink);
  opacity: 0.8;
  line-height: 1.6;
}

/* ---------- 4. フォーム ---------- */
.p-contact3__form-section {
  padding: 3.5rem 0;
  background: var(--c3-brand-soft);
  border-top: 1px solid var(--c3-border);
  border-bottom: 1px solid var(--c3-border);
}

.p-contact3__form {
  max-width: 660px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--c3-border);
  border-radius: var(--c3-radius);
  padding: 2.25rem;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.06);
  text-align: left;
}

.p-contact3__selected-summary {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-align: left;
  background: var(--c3-brand-soft);
  border: 1px solid var(--c3-border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  margin: 0 auto 1.5rem;
  max-width: 660px;
  font-size: 0.98rem;
  color: var(--c3-ink);
}

/* [hidden]属性はブラウザ既定でdisplay:noneだが、上のdisplay:flexと詳細度が同じため
   後勝ちで無効化されてしまう不具合があった。明示的に優先させ、カード未選択時は
   確実に非表示にする（このバグはPhase2系の同名クラスにも存在する可能性があるため、
   Phase3-2側では確実に修正している）。 */
.p-contact3__selected-summary[hidden] {
  display: none;
}

.p-contact3__selected-summary .p-contact3__icon {
  color: var(--c3-brand);
  width: 1.2rem;
  height: 1.2rem;
}

.p-contact3__selected-summary strong {
  color: var(--c3-brand);
}

.p-contact3__field {
  margin-bottom: 1.6rem;
  text-align: left;
}

.p-contact3__field label {
  display: block;
  text-align: left;
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--c3-ink);
  margin-bottom: 0.55rem;
}

.p-contact3__badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  border-radius: 999px;
  padding: 0.18rem 0.65rem;
  margin-left: 0.5rem;
  vertical-align: middle;
}

.p-contact3__badge--required {
  background: #fdeaea;
  color: #b3261e;
}

.p-contact3__badge--optional {
  background: #eef0f2;
  color: #555;
}

.p-contact3__field input[type="text"],
.p-contact3__field input[type="email"],
.p-contact3__field input[type="tel"],
.p-contact3__field select,
.p-contact3__field textarea {
  width: 100%;
  font-size: 1.05rem;
  font-family: inherit;
  color: var(--c3-ink);
  border: 1px solid var(--c3-border);
  border-radius: 8px;
  padding: 0.9rem 1.05rem;
  min-height: 48px;
  box-sizing: border-box;
  background: #fff;
  text-align: left;
}

.p-contact3__field textarea {
  min-height: 150px;
  resize: vertical;
}

.p-contact3__field input:focus,
.p-contact3__field select:focus,
.p-contact3__field textarea:focus {
  outline: 2px solid var(--c3-accent-blue);
  outline-offset: 1px;
  border-color: var(--c3-accent-blue);
}

.p-contact3__field--checkbox {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.p-contact3__field--checkbox input[type="checkbox"] {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.p-contact3__field--checkbox label {
  margin: 0;
  font-weight: 400;
  font-size: 1rem;
}

.p-contact3__field--checkbox a {
  color: var(--c3-accent-blue);
  text-decoration: underline;
}

.p-contact3__submit {
  display: block;
  width: 100%;
  min-height: 56px;
  background: var(--c3-brand);
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.p-contact3__submit:hover,
.p-contact3__submit:focus-visible {
  background: var(--c3-brand-dark);
}

.p-contact3__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* ---------- honeypot（人には見えないが、DOM上には存在する） ---------- */
.p-contact3__hp {
  position: absolute;
  left: -9999px;
  top: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- エラー表示 ---------- */
.p-contact3__error-box {
  max-width: 660px;
  margin: 0 auto 1.5rem;
  background: var(--c3-error-soft);
  border: 1px solid #f3b8b3;
  color: var(--c3-error);
  border-radius: 8px;
  padding: 0.9rem 1.1rem;
  font-size: 0.98rem;
  line-height: 1.7;
  text-align: left;
}

/* ---------- STEP2: 確認画面 ---------- */
.p-contact3__confirm-list {
  margin: 0 0 1.5rem;
}

.p-contact3__confirm-list dt {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--c3-brand);
  margin: 1.1rem 0 0.3rem;
}

.p-contact3__confirm-list dt:first-child {
  margin-top: 0;
}

.p-contact3__confirm-list dd {
  margin: 0;
  padding: 0.75rem 1rem;
  background: var(--c3-brand-soft);
  border-radius: 8px;
  font-size: 1.05rem;
  color: var(--c3-ink);
  word-break: break-word;
}

.p-contact3__confirm-message {
  white-space: pre-wrap;
}

.p-contact3__confirm-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.p-contact3__btn-secondary {
  display: block;
  width: 100%;
  min-height: 56px;
  background: #fff;
  color: var(--c3-ink);
  font-size: 1.05rem;
  font-weight: 700;
  border: 1.5px solid var(--c3-border);
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.p-contact3__btn-secondary:hover,
.p-contact3__btn-secondary:focus-visible {
  border-color: var(--c3-brand);
}

/* ---------- STEP3: 完了画面 ---------- */
.p-contact3__complete-box {
  text-align: center;
  padding: 3rem 2.25rem;
}

.p-contact3__complete-icon {
  width: 56px;
  height: 56px;
  color: var(--c3-brand);
  margin: 0 auto 1.25rem;
  display: block;
}

.p-contact3__complete-box p {
  font-size: 1.15rem;
  color: var(--c3-ink);
  margin: 0 0 0.75rem;
}

.p-contact3__complete-sub {
  font-size: 0.98rem !important;
  opacity: 0.75;
}

/* ---------- 5. 関連情報 ---------- */
.p-contact3__related {
  padding: 3rem 1rem 2rem;
}

.p-contact3__related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.p-contact3__related-link {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  justify-content: center;
  min-height: 52px;
  background: #fff;
  border: 1px solid var(--c3-border);
  border-radius: 999px;
  padding: 0.85rem 1.3rem;
  color: var(--c3-ink);
  font-size: 1rem;
  text-decoration: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.p-contact3__related-link:hover,
.p-contact3__related-link:focus-visible {
  border-color: var(--c3-brand);
  background: var(--c3-brand-soft);
}

.p-contact3__related-link .p-contact3__icon {
  color: var(--c3-brand);
}

/* ---------- Tablet (834px前後) ---------- */
@media screen and (max-width: 900px) {
  .p-contact3__categories-inner {
    max-width: none;
  }
  .p-contact3__h1 {
    font-size: 2.15rem;
  }
  .p-contact3__card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .p-contact3__related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ---------- Mobile (390px前後)：2列×4段 ---------- */
@media screen and (max-width: 480px) {
  .p-contact3__hero {
    padding: 2.5rem 1.0rem 1.75rem;
  }
  .p-contact3__h1 {
    font-size: 1.9rem;
  }
  .p-contact3__lead {
    font-size: 1.05rem;
  }
  .p-contact3__card-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.5rem;
  }
  .p-contact3__card {
    min-height: 168px;
    padding: 1.1rem 0.9rem;
  }
  .p-contact3__card-icon {
    width: 44px;
    height: 44px;
  }
  .p-contact3__card-icon svg {
    width: 24px;
    height: 24px;
  }
  .p-contact3__card-title {
    font-size: 1.02rem;
  }
  .p-contact3__card-caption {
    font-size: 0.86rem;
  }
  .p-contact3__related-grid {
    grid-template-columns: 1fr;
  }
  .p-contact3__form {
    padding: 1.6rem 1.15rem;
  }
  .p-contact3__section-title {
    font-size: 1.4rem;
  }
  .p-contact3__section-sub {
    font-size: 0.98rem;
  }
  .p-contact3__confirm-actions {
    grid-template-columns: 1fr;
  }
}