/* ==================================================
   運送業の事例紹介ページ専用CSS
   このファイルは main.case-page の中だけを装飾します。
   ================================================== */

/* 1. ページで使う色や横幅 */
.case-page {
  --case-color-main: #111827;
  --case-color-text: #4b5563;
  --case-color-accent: #7a0019;
  --case-color-border: #e5e7eb;
  --case-color-soft: #f8f8f8;
  --case-width: 1000px;

  padding-top: 80px;
  color: var(--case-color-main);
  background: #ffffff;
}

/* 2. 共通の横幅 */
.case-container {
  width: min(var(--case-width), 90%);
  margin: 0 auto;
}

/* 3. ページ上部 */
.case-hero {
  padding: 110px 0 90px;
  background: #ffffff;
  border-bottom: 1px solid var(--case-color-border);
}

.case-hero__label {
  margin-bottom: 18px;
  color: var(--case-color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.case-hero__title {
  margin-bottom: 24px;
  font-size: clamp(34px, 5vw, 60px);
  line-height: 1.4;
  font-weight: 600;
}

.case-hero__lead {
  max-width: 700px;
  color: var(--case-color-text);
  font-size: 16px;
  line-height: 2;
}

/* 4. ページ内メニュー */
.case-index {
  padding: 34px 0;
  background: #ffffff;
  border-bottom: 1px solid var(--case-color-border);
}

.case-index__title {
  margin-bottom: 16px;
  color: var(--case-color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-index__links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.case-index__links a {
  padding: 14px;
  color: var(--case-color-main);
  background: #ffffff;
  border: 1px solid var(--case-color-border);
  text-align: center;
  transition: 0.2s;
}

.case-index__links a:hover {
  color: var(--case-color-accent);
  border-color: var(--case-color-accent);
}

/* 5. 各セクション */
.case-section {
  padding: 90px 0;
  background: #ffffff;
}

.case-section--soft {
  background: var(--case-color-soft);
}

.case-heading {
  display: flex;
  align-items: center;
  gap: 22px;
  margin-bottom: 48px;
}

.case-heading__number {
  color: var(--case-color-accent);
  font-size: 42px;
  line-height: 1;
  font-weight: 700;
}

.case-heading__en {
  margin-bottom: 6px;
  color: #9ca3af;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-heading h2 {
  font-size: 32px;
  font-weight: 600;
}

/* 6. 画像と文章の2列 */
.case-two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 54px;
  align-items: center;
}

.case-image-placeholder {
  display: grid;
  place-items: center;
  min-height: 320px;
  padding: 30px;
  color: #6b7280;
  background: #f3f4f6;
  border: 1px dashed #9ca3af;
  text-align: center;
}

.case-text p {
  margin-bottom: 20px;
  color: var(--case-color-text);
  font-size: 16px;
  line-height: 2;
}

/* 7. 課題カード */
.case-card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.case-card {
  padding: 30px;
  background: #ffffff;
  border: 1px solid var(--case-color-border);
}

.case-card__number {
  margin-bottom: 24px;
  color: var(--case-color-accent);
  font-size: 13px;
  font-weight: 700;
}

.case-card h3 {
  margin-bottom: 16px;
  font-size: 21px;
  line-height: 1.5;
}

.case-card p {
  color: var(--case-color-text);
  font-size: 14px;
  line-height: 1.9;
}

/* 8. 取り組みの手順 */
.case-step-list {
  border-top: 1px solid var(--case-color-border);
}

.case-step {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 30px;
  padding: 28px 0;
  border-bottom: 1px solid var(--case-color-border);
}

.case-step > span {
  color: var(--case-color-accent);
  font-size: 13px;
  font-weight: 700;
}

.case-step h3 {
  margin-bottom: 10px;
  font-size: 21px;
}

.case-step p {
  color: var(--case-color-text);
  line-height: 1.9;
}

/* 9. 結果 */
.case-result {
  max-width: 760px;
  padding-left: 30px;
  border-left: 4px solid var(--case-color-accent);
}

.case-result__catch {
  margin-bottom: 28px;
  color: var(--case-color-main) !important;
  font-size: clamp(26px, 4vw, 40px) !important;
  line-height: 1.6 !important;
  font-weight: 600;
}

.case-result p {
  color: var(--case-color-text);
  font-size: 16px;
  line-height: 2;
}

/* 10. 問い合わせ */
.case-contact {
  padding: 90px 0;
  background: #ffffff;
  border-top: 1px solid var(--case-color-border);
  text-align: center;
}

.case-contact__label {
  margin-bottom: 14px;
  color: var(--case-color-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-contact h2 {
  margin-bottom: 18px;
  font-size: clamp(26px, 4vw, 40px);
}

.case-contact > .case-container > p {
  margin-bottom: 30px;
  color: var(--case-color-text);
}

.case-contact__button {
  display: inline-block;
  padding: 15px 30px;
  color: #ffffff;
  background: var(--case-color-accent);
  border: 1px solid var(--case-color-accent);
  border-radius: 999px;
  transition: 0.2s;
}

.case-contact__button:hover {
  color: var(--case-color-accent);
  background: #ffffff;
}

/* 11. スマートフォン */
@media (max-width: 768px) {
  .case-page {
    padding-top: 140px;
  }

  .case-hero {
    padding: 70px 0 60px;
  }

  .case-index__links,
  .case-two-column,
  .case-card-grid {
    grid-template-columns: 1fr;
  }

  .case-section {
    padding: 60px 0;
  }

  .case-heading {
    align-items: flex-start;
    margin-bottom: 34px;
  }

  .case-heading__number {
    font-size: 32px;
  }

  .case-heading h2 {
    font-size: 26px;
  }

  .case-image-placeholder {
    min-height: 220px;
  }

  .case-step {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .case-result {
    padding-left: 20px;
  }
}

/* ==================================================
   コンサルティング事例一覧ページ専用CSS
   既存ページとクラス名が重ならないよう、
   case-list- で統一しています。
   ================================================== */

.case-list-page {
  --case-list-main: #111827;
  --case-list-text: #4b5563;
  --case-list-accent: #7a0019;
  --case-list-border: #e5e7eb;
  --case-list-soft: #f8f8f8;
  --case-list-width: 1100px;

  padding-top: 80px;
  color: var(--case-list-main);
  background: #ffffff;
}

.case-list-container {
  width: min(var(--case-list-width), 90%);
  margin: 0 auto;
}


/* ページ上部 */
.case-list-hero {
  padding: 100px 0 70px;
  background: #ffffff;
  border-bottom: 1px solid var(--case-list-border);
}

.case-list-hero__label {
  margin-bottom: 16px;
  color: var(--case-list-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.case-list-hero__title {
  margin-bottom: 20px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.35;
  font-weight: 600;
}

.case-list-hero__lead {
  max-width: 720px;
  color: var(--case-list-text);
  font-size: 16px;
  line-height: 2;
}


/* 事例一覧 */
.case-list-section {
  padding: 80px 0 100px;
  background: var(--case-list-soft);
}

.case-list-section__head {
  margin-bottom: 38px;
}

.case-list-section__label {
  margin-bottom: 8px;
  color: var(--case-list-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.case-list-section__title {
  font-size: 30px;
  line-height: 1.5;
  font-weight: 600;
}


/* カードを3列で表示 */
.case-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}


/* 1枚の事例カード */
.case-list-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--case-list-main);
  background: #ffffff;
  border: 1px solid var(--case-list-border);
  border-radius: 18px;
  text-decoration: none;
  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.case-list-card:hover {
  border-color: #cbd5e1;
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.09);
  transform: translateY(-5px);
}


/* カード上部の画像 */
.case-list-card__image {
  height: 210px;
  overflow: hidden;
  background: #eef0f2;
}

.case-list-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.case-list-card:hover .case-list-card__image img {
  transform: scale(1.04);
}


/* 画像未設定時の仮表示 */
.case-list-card__placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: #9ca3af;
  font-size: 13px;
}


/* カード本文 */
.case-list-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;
  padding: 26px 24px 24px;
}

.case-list-card__category {
  margin-bottom: 12px;
  color: var(--case-list-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.case-list-card__body h2 {
  margin-bottom: 14px;
  font-size: 21px;
  line-height: 1.55;
  font-weight: 600;
}

.case-list-card__text {
  margin-bottom: 24px;
  color: var(--case-list-text);
  font-size: 14px;
  line-height: 1.9;
}

.case-list-card__more {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--case-list-border);
  color: var(--case-list-accent);
  font-size: 14px;
  font-weight: 600;
}

.case-list-card__arrow {
  font-size: 18px;
  transition: transform 0.25s ease;
}

.case-list-card:hover .case-list-card__arrow {
  transform: translateX(4px);
}


/* スマートフォン */
@media (max-width: 900px) {
  .case-list-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .case-list-page {
    padding-top: 140px;
  }

  .case-list-hero {
    padding: 70px 0 55px;
  }

  .case-list-section {
    padding: 60px 0 70px;
  }

  .case-list-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .case-list-card__image {
    height: 200px;
  }

  .case-list-card__body {
    padding: 22px 20px 20px;
  }

  .case-list-card__body h2 {
    font-size: 20px;
  }
}

/* ==================================================
   コンサルティング事例一覧ページ専用CSS
   既存クラスと被らないよう case-list- で統一
   ================================================== */

.case-list-page {
  --case-list-main: #111827;
  --case-list-text: #4b5563;
  --case-list-accent: #111a78;
  --case-list-border: #e5e7eb;
  --case-list-soft: #f7f8fa;
  --case-list-width: 1200px;

  padding-top: 80px;
  color: var(--case-list-main);
  background: #ffffff;
}


.case-list-container {
  width: min(var(--case-list-width), 90%);
  margin: 0 auto;
}


/* =========================================
   ページ上部
========================================= */

.case-list-hero {
  padding: 100px 0 75px;
  background: #ffffff;
  border-bottom: 1px solid var(--case-list-border);
}


.case-list-hero__label {
  margin-bottom: 16px;
  color: var(--case-list-accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
}


.case-list-hero__title {
  margin-bottom: 20px;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.35;
  font-weight: 600;
}


.case-list-hero__lead {
  max-width: 720px;
  color: var(--case-list-text);
  font-size: 16px;
  line-height: 2;
}



/* =========================================
   カテゴリごとのブロック
========================================= */

.case-list-category {
  padding: 85px 0 100px;
  background: #ffffff;
}


.case-list-category--soft {
  background: var(--case-list-soft);
}


.case-list-category__head {
  margin-bottom: 46px;
  text-align: center;
}


.case-list-category__label {
  margin-bottom: 8px;
  color: var(--case-list-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
}


.case-list-category__head h2 {
  margin-bottom: 18px;
  font-size: clamp(26px, 3vw, 38px);
  line-height: 1.5;
  font-weight: 600;
}


.case-list-category__line {
  display: block;
  width: 70px;
  height: 4px;
  margin: 0 auto;
  background: var(--case-list-accent);
}



/* =========================================
   横スクロール全体
========================================= */

.case-list-slider {
  position: relative;
}


/*
  カードを横一列に並べる部分
*/
.case-list-slider__track {
  display: flex;
  gap: 24px;

  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;

  padding: 10px 2px 24px;

  /* スクロールバーを見えなくする */
  scrollbar-width: none;
}


.case-list-slider__track::-webkit-scrollbar {
  display: none;
}



/* =========================================
   カード
========================================= */

.case-list-slide-card {
  flex: 0 0 calc((100% - 72px) / 4);

  display: flex;
  flex-direction: column;

  min-width: 0;
  overflow: hidden;

  color: var(--case-list-main);
  background: #ffffff;

  border: 1px solid var(--case-list-border);
  border-radius: 4px;

  text-decoration: none;

  scroll-snap-align: start;

  transition:
    transform 0.25s ease,
    box-shadow 0.25s ease;
}


.case-list-slide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 14px 32px rgba(17, 24, 39, 0.09);
}


/* 画像 */
.case-list-slide-card__image {
  height: 190px;
  overflow: hidden;
  background: #eef1f4;
}


.case-list-slide-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}


.case-list-slide-card:hover .case-list-slide-card__image img {
  transform: scale(1.04);
}


.case-list-slide-card__placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;

  color: #9ca3af;
  background: #eef1f4;

  font-size: 13px;
  letter-spacing: 0.12em;
}


/* カードの文章 */
.case-list-slide-card__body {
  display: flex;
  flex: 1;
  flex-direction: column;

  min-height: 245px;
  padding: 24px 24px 22px;
}


.case-list-slide-card__tag {
  margin-bottom: 12px;
  color: #6678a8;
  font-size: 12px;
  font-weight: 600;
}


.case-list-slide-card__body h3 {
  margin-bottom: 14px;
  color: var(--case-list-accent);
  font-size: 19px;
  line-height: 1.75;
  font-weight: 600;
}


.case-list-slide-card__text {
  margin-bottom: 20px;
  color: var(--case-list-text);
  font-size: 13px;
  line-height: 1.9;
}


.case-list-slide-card__more {
  margin-top: auto;
  color: var(--case-list-accent);
  font-size: 13px;
  font-weight: 600;
}



/* =========================================
   左右ボタン
========================================= */

.case-list-slider__button {
  position: absolute;
  top: 50%;
  z-index: 5;

  display: grid;
  place-items: center;

  width: 54px;
  height: 54px;

  color: #ffffff;
  background: var(--case-list-accent);

  border: 0;
  border-radius: 50%;

  font-size: 34px;
  line-height: 1;

  cursor: pointer;

  transform: translateY(-50%);

  transition:
    opacity 0.2s ease,
    transform 0.2s ease;
}


.case-list-slider__button:hover {
  opacity: 0.82;
}


.case-list-slider__button--prev {
  left: -72px;
}


.case-list-slider__button--next {
  right: -72px;
}



/* =========================================
   タブレット
========================================= */

@media (max-width: 1100px) {

  .case-list-slide-card {
    flex-basis: calc((100% - 48px) / 3);
  }


  .case-list-slider__button--prev {
    left: -28px;
  }


  .case-list-slider__button--next {
    right: -28px;
  }

}



/* =========================================
   スマートフォン
========================================= */

@media (max-width: 768px) {

  .case-list-page {
    padding-top: 140px;
  }


  .case-list-hero {
    padding: 70px 0 55px;
  }


  .case-list-category {
    padding: 60px 0 70px;
  }


  .case-list-category__head {
    margin-bottom: 32px;
  }


  .case-list-slide-card {
    flex-basis: 82%;
  }


  .case-list-slide-card__image {
    height: 190px;
  }


  /*
    スマホでは指で横に動かせるので
    左右ボタンを非表示にする
  */
  .case-list-slider__button {
    display: none;
  }

}

/* =========================================
   運送業事例詳細ページ
   本番環境の既存CSS対策
========================================= */

/* 課題カード全体を縦並びに戻す */
.case-page .case-card {
  display: block !important;
  width: auto !important;
  height: auto !important;
  padding: 30px !important;
  background: #ffffff !important;
  border: 1px solid var(--case-color-border) !important;
  box-sizing: border-box !important;
}

/* カード番号 */
.case-page .case-card__number {
  display: block !important;
  width: auto !important;
  margin: 0 0 24px !important;
  padding: 0 !important;
  float: none !important;
  clear: both !important;

  color: var(--case-color-accent) !important;
  background: none !important;
  border: none !important;

  font-size: 13px !important;
  line-height: 1.5 !important;
  font-weight: 700 !important;
  text-align: left !important;
}

/* 課題カードの見出し */
.case-page .case-card h3 {
  display: block !important;
  width: auto !important;
  height: auto !important;

  margin: 0 0 16px !important;
  padding: 0 !important;

  float: none !important;
  clear: both !important;
  position: static !important;

  color: #111827 !important;
  background: none !important;
  background-color: transparent !important;

  border: none !important;
  border-top: none !important;
  border-right: none !important;
  border-bottom: none !important;
  border-left: none !important;

  font-size: 21px !important;
  line-height: 1.5 !important;
  font-weight: 600 !important;
  text-align: left !important;
}

/* h3に既存テーマの装飾が付いている場合の解除 */
.case-page .case-card h3::before,
.case-page .case-card h3::after {
  content: none !important;
  display: none !important;
}

/* 課題カードの説明文 */
.case-page .case-card > p {
  display: block !important;
  width: auto !important;

  float: none !important;
  clear: both !important;

  color: var(--case-color-text) !important;
  background: none !important;
  border: none !important;

  font-size: 14px !important;
  line-height: 1.9 !important;
  text-align: left !important;
}

/* 最初のpはカード番号なので余白は番号側を優先 */
.case-page .case-card > p.case-card__number {
  margin-bottom: 24px !important;
}

/* STEP部分のh3も本番CSSの影響を防ぐ */
.case-page .case-step h3 {
  margin: 0 0 10px !important;
  padding: 0 !important;

  color: var(--case-color-main) !important;
  background: none !important;
  border: none !important;

  font-size: 21px !important;
  line-height: 1.5 !important;
  font-weight: 600 !important;
  text-align: left !important;
}

/* STEP見出しの疑似要素を解除 */
.case-page .case-step h3::before,
.case-page .case-step h3::after {
  content: none !important;
  display: none !important;
}

.case-contact .case-contact__button:hover {
  background-color: #0a146b !important;
  color: #ffffff !important;
}

.case-list-page .case-contact__button {
  background-color: var(--case-list-accent) !important;
  color: #ffffff !important;
  border-color: var(--case-list-accent) !important;
}

.case-list-page .case-contact__button:hover {
  background-color: var(--case-list-accent) !important;
  color: #ffffff !important;
}