/* ===== ヘッダー ===== */
.site-header {
  width: 100%;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--header-background);
  z-index: var(--z-header, 1000);
  backdrop-filter: blur(10px);
}

.site-header__inner {
  max-width: 1100px;
  width: 100%;
  height: 100%;
  margin: 0 auto;
  padding: 0 clamp(16px, 4vw, 24px);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__logo {
  width: clamp(120px, 15vw, 200px);
  height: 100%;
  display: flex;
  align-items: center;
  margin: 0;
}

.site-header__logo-image {
  width: 100%;
  height: auto;
  object-fit:contain;
  display: block;
}

/* ===== ハンバーガー ===== */
/* ハンバーガーはPCでは非表示、モバイルのみ表示 */
body.no-scroll {
  overflow: hidden;
}

.globalNav__button {
  display: none;
}

/* ===== ナビゲーションドロワーのオーバーレイ ===== */
.globalNav__overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: var(--z-overlay, 900);
}

/* ===== ナビゲーションリスト ===== */
.globalNav__list {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: clamp(16px, 2.5vw, 25px);
}

.globalNav__link {
  color: var(--light-text);
  text-decoration: none;
  font-size: 1.1rem;
  transition: color 0.3s;
  color: var(--light-text);
  font-weight: 500;
  border-bottom: none;
}

.globalNav__link:hover {
  color: var(--header-link-hover);
}

/* ===== RESPONSIVE ===== */

/* Tablet（768px〜1023px） */
@media (max-width: 1024px) {
  .globalNav__link {
    font-weight: 400;
  }
}

/* Mobile（〜767px） */
@media (max-width: 767px) {
  .globalNav__nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: var(--z-drawer, 1100);
    padding: 24px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: auto;
  }

  .globalNav__list {
    flex-direction: column;
    align-items: center;
    gap: 0;
    max-width: 260px;
    margin: 0 auto;
  }

  .globalNav__link {
    display: block;
    width: 100%;
    padding: 12px 2px;
    font-size: 1.1rem;
    font-weight: 500;
    border-bottom: 1px solid rgba(255,255,255,0.15);
    pointer-events: auto;
  }

  .globalNav__button {
    position: relative;
    width: 32px;
    height: 32px;
    border: 0;
    background: transparent;
    color: var(--light-text);
    cursor: pointer;
    z-index: var(--z-toggle, 1200);
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: center;
    overflow: visible;
  }

  .globalNav__bar {
    position: absolute;
    right: 6px;
    width: 18px;
    height: 2px;
    background: var(--light-text);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: right center;
    margin-top: -1px;
  }

  .globalNav__bar:nth-child(1) {
    top: 9px;
  }

  .globalNav__bar:nth-child(2) {
    top: 15px;
  }

  .globalNav__bar:nth-child(3) {
    top: 21px;
  }

  /* 開いたときの状態 */
  body.nav-open .globalNav__nav {
    transform: translateX(0);
    box-sizing: border-box;
  }

  body.nav-open .globalNav__overlay {
    opacity: 1;
    pointer-events: auto;
  }

  /* ハンバーガー → × に変形 */
  body.nav-open .globalNav__bar {
    width: 18px;
    right: auto;
    left: 50%;
    transform-origin: center;
  }

  body.nav-open .globalNav__bar:nth-child(1) {
    top: 15px;
    transform: translateX(-50%) rotate(45deg);
  }

  body.nav-open .globalNav__bar:nth-child(2) {
    opacity: 0;
  }

  body.nav-open .globalNav__bar:nth-child(3) {
    top: 15px;
    transform: translateX(-50%) rotate(-45deg);
  }

  /* ×変形時の見切れ防止 */
  body.nav-open .globalNav__button {
    overflow: visible;
  }

  /* ヘッダー全体の見切れ防止 */
  body.nav-open .site-header,
  body.nav-open .site-header__inner {
    overflow: visible;
  }
}