/* top ページのスクロールロックを解除 */
html,
body {
  overflow: auto;
  height: auto;
}


/* ── Header: PC ナビ ── */
.header__nav-pc {
  display: flex;
  align-items: center;
  gap: 80px;
}

.header__nav-pc .nav-link {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  transition: color 0.15s ease;
}

.header__nav-pc .nav-link:hover {
  color: #666;
}

/* ── ハンバーガー ── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  display: block;
  width: 40px;
  height: 1px;
  background: var(--color-primary);
  transition: transform 0.25s ease;
}

.hamburger.is-open span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.hamburger.is-open span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

/* ── モバイルナビ ── */
.mobile-nav {
  padding: 28px var(--page-padding);
  border-bottom: 1px solid var(--color-primary);
  background: var(--color-bg);
}

.mobile-nav__link {
  display: block;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding-bottom: 28px;
}

.mobile-nav__link:last-child {
  padding-bottom: 0;
}

/* ── カードアニメーション ── */
.works__item {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.works__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── Works ── */
.works {
  padding: 0 var(--page-padding) 120px;
}

.works__title {
  font-size: 84px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-top: 86px;
  margin-bottom: 72px;
}

/* ── タブ ── */
.works__tabs {
  display: flex;
  align-items: flex-end;
  gap: 80px;
  margin-bottom: 48px;
}

.works__tab {
  font-family: Helvetica, 'Helvetica Neue', Arial, sans-serif;
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1;
  background: none;
  border: none;
  border-bottom: 8px solid transparent;
  padding: 0 0 1px;
  cursor: pointer;
  color: var(--color-primary);
  transition: color 0.15s ease;
}

.works__tab.is-active {
  border-bottom-color: var(--color-primary);
}

/* ── カードリスト ── */
.works__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.works__item {
  display: flex;
  align-items: center;
  gap: 36px;
}

.works__img-wrap {
  /* 1400px コンテナ / 30px×2 パディング → コンテンツ幅 1340px, 基準画像幅 653px */
  width: 48.73%;
  flex-shrink: 0;
  aspect-ratio: 653 / 404;
  overflow: hidden;
}

.works__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.works__name {
  font-size: 16px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 4px;
}

.works__desc {
  font-size: 12px;
  font-weight: 400;
  line-height: 1.6;
}

/* ── SP (≤768px) ── */
@media (max-width: 768px) {
  :root {
    --page-padding: 15px;
    --header-height: 58px;
  }

  .header__nav-pc {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .works__title {
    font-size: 52px;
    margin-top: 70px;
    margin-bottom: 48px;
  }

  .works__tabs {
    gap: 40px;
    margin-bottom: 32px;
  }

  .works__tab {
    font-size: 22px;
    border-bottom-width: 6px;
  }

  .works__list {
    gap: 32px;
  }

  .works__item {
    flex-direction: column;
    align-items: flex-start;
    gap: 14px;
  }

  .works__desc {
    font-size: 11px;
  }

  .works__img-wrap {
    width: 100%;
  }

  .works__name {
    font-size: 15px;
    margin-bottom: 4px;
  }
}