/* ============================================================
   HEADER  /css/header.css
   ============================================================ */

/* ── ヘッダー本体 ─────────────────────────────────────── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: var(--header-bg);
  transition: box-shadow var(--transition);
}

.site-header.is-sticky {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.25);
}

/* ── 内側レイアウト ───────────────────────────────────── */
.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  gap: 32px;
}

/* ── ロゴ ─────────────────────────────────────────────── */
.site-branding {
  flex-shrink: 0;
}

/* .site-branding img {
  height: 40px;
  width: auto;
  display: block;
} */

/* .site-title-link {
  color: var(--header-text);
  text-decoration: none;
  font-size: 1.3rem;
  font-weight: 700;
  white-space: nowrap;
  letter-spacing: 0.02em;
} */

.logo-link {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.logo-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.3;
  text-align: center;
  border: 1.5px solid var(--color-gold);
  border-radius: 6px;
  padding: 6px 10px;
}

.logo-badge span {
  color: var(--color-gold);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.05em;
}

.logo-text {
  color: var(--color-white);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

/* ── PCナビ ───────────────────────────────────────────── */
.main-navigation {
  flex: 1;
  display: flex;
  justify-content: center;
}

.main-navigation ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 4px;
}

.main-navigation ul li a {
  display: block;
  padding: 8px 14px;
  color: var(--header-text);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  white-space: nowrap;
  transition: color var(--transition);
}

.main-navigation ul li a:hover,
.main-navigation ul li.current-menu-item > a {
  color: var(--header-hover);
}

/* ── 電話番号 ─────────────────────────────────────────── */
.header-contact {
  flex-shrink: 0;
}

.header-tel {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--header-text);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
  white-space: nowrap;
  transition: opacity var(--transition);
}

.header-tel:hover {
  color: var(--header-text);
  opacity: 0.8;
}

/* ── ハンバーガーボタン ───────────────────────────────── */
.hamburger-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

.hamburger-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--header-text);
  border-radius: 2px;
  transition:
    transform var(--transition),
    opacity var(--transition);
  transform-origin: center;
}

/* ×アイコン */
.hamburger-toggle.is-active .hamburger-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
.hamburger-toggle.is-active .hamburger-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger-toggle.is-active .hamburger-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ── モバイルメニュー ─────────────────────────────────── */
.mobile-nav {
  overflow: hidden;
  max-height: 0;
  background-color: var(--header-bg);
  transition:
    max-height 0.35s ease,
    padding var(--transition);
  padding: 0 var(--container-pad);
}

.mobile-nav.is-open {
  max-height: 600px;
  padding: 16px var(--container-pad) 24px;
}

.mobile-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-nav ul li {
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav ul li a {
  display: block;
  padding: 14px 0;
  color: var(--header-text);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color var(--transition);
}

.mobile-nav ul li a:hover {
  color: var(--header-hover);
}

.mobile-tel {
  margin-top: 20px;
  padding-top: 16px;
}

.mobile-tel a {
  color: var(--header-text);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 600;
}

body.mobile-menu-open {
  overflow: hidden;
}

/* ── レスポンシブ ─────────────────────────────────────── */
@media (max-width: 768px) {
  .main-navigation,
  .header-contact {
    display: none;
  }

  .hamburger-toggle {
    display: flex;
  }

  .header-inner {
    padding: 0 16px;
  }
}