/* =========================================================
   Environment
========================================================= */

.environment {
  padding-block: 140px;
  background: var(--color-bg);
}

/* ---------- Head ---------- */
/* 左に見出し、右に説明文の2カラム。説明文の最後の行を見出しの下端にそろえる */
.environment__head {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: end;
  gap: 64px;
}

.environment__title {
  margin-top: 28px;
  font-family: var(--font-heading);
  font-size: clamp(32px, 3.1vw, 44px);
  font-weight: 700;
  line-height: 1.55;
  letter-spacing: 0.04em;
}

.environment__title-line {
  display: block;
}

.environment__lead {
  font-size: 16px;
  line-height: 2;
  letter-spacing: 0.06em;
  color: var(--color-text-sub);
  word-break: auto-phrase;
}

/* ---------- Gallery（横に流れ続ける写真） ---------- */
.environment {
  --gallery-h: 380px;
  --gallery-gap: 20px;
  --gallery-duration: 90s; /* 小さいほど速い */
}

.environment__gallery {
  margin-top: 64px;
  overflow: hidden;
}

/* 同じ写真を2セット並べ、ちょうど1セット分（-50%）動かしてループさせる */
.environment__track {
  display: flex;
  width: max-content;
  animation: environment-marquee var(--gallery-duration) linear infinite;
}

.environment__slides {
  display: flex;
  align-items: center;
}

.environment__slide {
  flex-shrink: 0;
  height: var(--gallery-h);
  margin-right: var(--gallery-gap);
  overflow: hidden;
  border-radius: 28px;
  background: var(--color-sub);
}

/* 1枚おきに少し小さくして、並びにリズムをつける */
.environment__slide:nth-child(even) {
  height: calc(var(--gallery-h) * 0.78);
}

.environment__slide img {
  width: auto;
  max-width: none;
  height: 100%;
}

@keyframes environment-marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* 動きを減らす設定の人には止めて、横スクロールで見られるように */
@media (prefers-reduced-motion: reduce) {
  .environment__gallery { overflow-x: auto; }
  .environment__track { animation: none; }
  .environment__slides[aria-hidden="true"] { display: none; }
}

/* ---------- List ---------- */
/* 5項目を「2つ＋3つ」の2段に。白い面で軽く区切るだけ */
.environment__list {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
  margin-top: 40px;
}

.environment__item {
  grid-column: span 2;
  padding: 36px 32px 40px;
  border-radius: 24px;
  background: var(--color-white);
}

.environment__item:nth-child(-n + 2) {
  grid-column: span 3;
}

.environment__icon {
  width: 36px;
  height: 36px;
  fill: none;
  stroke: var(--color-primary);
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.environment__name {
  margin-top: 20px;
  font-size: 18px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.environment__text {
  margin-top: 12px;
  font-size: 15px;
  line-height: 1.95;
  letter-spacing: 0.05em;
  color: var(--color-text-sub);
  word-break: auto-phrase;
}

/* ---------- CTA ---------- */
.environment__cta {
  display: flex;
  justify-content: center;
  margin-top: 72px;
}

.environment__cta .btn {
  min-width: 300px;
}

/* ---------- Tablet ---------- */
@media (max-width: 960px) {
  .environment {
    padding-block: 100px;
  }

  .environment__head {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .environment {
    --gallery-h: 300px;
    --gallery-gap: 16px;
  }

  .environment__gallery {
    margin-top: 48px;
  }

  .environment__slide {
    border-radius: 24px;
  }

  .environment__list {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
  }

  .environment__item,
  .environment__item:nth-child(-n + 2) {
    grid-column: auto;
  }

  /* 5つ目は横いっぱいに */
  .environment__item:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- SP : 1列 ---------- */
@media (max-width: 767px) {
  .environment {
    padding-block: 80px;
  }

  .environment__title {
    margin-top: 20px;
    font-size: clamp(26px, 7.4vw, 32px);
  }

  .environment__lead {
    font-size: 15px;
    letter-spacing: 0.04em;
  }

  .environment {
    --gallery-h: 220px;
    --gallery-gap: 12px;
    --gallery-duration: 70s;
  }

  .environment__gallery {
    margin-top: 36px;
  }

  .environment__slide {
    border-radius: 20px;
  }

  .environment__list {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 28px;
  }

  /* アイコンを左、テキストを右に並べて縦に詰める */
  .environment__item {
    display: grid;
    grid-template-columns: 32px 1fr;
    column-gap: 16px;
    padding: 24px 22px 26px;
    border-radius: 20px;
  }

  .environment__icon {
    grid-row: 1 / 3;
    width: 32px;
    height: 32px;
  }

  .environment__name {
    margin-top: 2px;
    font-size: 16px;
  }

  .environment__text {
    margin-top: 6px;
    font-size: 14px;
    letter-spacing: 0.04em;
  }

  .environment__cta {
    margin-top: 48px;
  }

  .environment__cta .btn {
    width: 100%;
    min-width: 0;
  }
}