/* ===== Header Component ===== */

.header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-bg-white);
  transition: box-shadow var(--transition-normal);
}

.header--scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* === SP Header (default / mobile-first) === */
.header__top-bar {
  display: none;
}

.header__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 60px;
  padding: 0 var(--container-padding);
}

/* ロゴ */
.header__logo {
  flex-shrink: 0;
  justify-self: center;
}

.header__logo-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--color-text-primary);
}

.header__logo-main {
  font-family: var(--font-heading-en);
  font-weight: 300;
  font-size: 1.25rem;
  letter-spacing: var(--ls-heading-en);
  color: var(--color-primary-500);
  line-height: 1;
}

.header__logo-sub {
  font-family: var(--font-heading-en);
  font-weight: 300;
  font-size: 0.625rem;
  letter-spacing: var(--ls-heading-en);
  color: var(--color-text-secondary);
  line-height: 1;
  margin-top: 2px;
}

/* グローバルナビ（SPでは非表示） */
.global-nav {
  display: none;
}

.global-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.global-nav__list li a {
  font-size: 14px;
  font-weight: 500;
  letter-spacing: var(--ls-body);
  color: var(--color-text-primary);
  text-decoration: none;
  padding: var(--space-xs) 0;
  position: relative;
  transition: color var(--transition-normal);
  white-space: nowrap;
}

.global-nav__list li a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-primary-500);
  transition: width var(--transition-normal);
}

.global-nav__list li a:hover {
  color: var(--color-primary-500);
}

.global-nav__list li a:hover::after {
  width: 100%;
}

.global-nav__list li.current-menu-item a {
  color: var(--color-primary-500);
}

.global-nav__list li.current-menu-item a::after {
  width: 100%;
}

/* CTA群 */
.header__cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  justify-self: end;
}

.header__tel-link {
  display: none;
}

.header__reserve-btn {
  padding: 8px 16px;
  font-size: 13px;
  min-height: 36px;
}

/* ハンバーガーボタン */
.header__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  gap: 5px;
  order: -1;
  position: relative;
  z-index: calc(var(--z-mobile-nav) + 1);
}

.header__hamburger-line {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-normal);
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(2) {
  opacity: 0;
}

.header__hamburger[aria-expanded="true"] .header__hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== モバイルナビ ===== */
.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  background-color: var(--color-bg-white);
  z-index: var(--z-mobile-nav);
  transform: translateX(100%);
  transition: transform var(--transition-normal);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-nav[aria-hidden="false"] {
  transform: translateX(0);
}

.mobile-nav__inner {
  padding: 80px var(--container-padding) var(--space-4xl);
}

.mobile-nav__list {
  border-top: 1px solid var(--color-border);
}

.mobile-nav__list li {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__list li a {
  display: block;
  padding: var(--space-md) var(--space-lg);
  font-size: 18px;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.mobile-nav__list li a:hover {
  background-color: var(--color-primary-50);
  color: var(--color-primary-500);
}

.mobile-nav__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
  padding: 0 var(--space-lg);
}

.mobile-nav__tel,
.mobile-nav__reserve {
  width: 100%;
  justify-content: center;
}

/* ===== PC Header (1230px+) ===== */
@media (min-width: 1230px) {
  .header__top-bar {
    display: block;
    background-color: var(--color-bg-light);
    height: 36px;
  }

  .header__top-bar-inner {
    max-width: var(--container-wide);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    gap: var(--space-md);
    font-size: var(--font-body-sm);
  }

  .header__top-bar-phone {
    color: var(--color-text-primary);
    font-weight: 500;
    text-decoration: none;
  }

  .header__top-bar-hours {
    color: var(--color-text-secondary);
  }

  .header__top-bar-line {
    color: var(--color-line);
    text-decoration: none;
    font-weight: 500;
  }

  .header__top-bar-line:hover {
    color: var(--color-line-hover);
  }

  .header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: var(--container-wide);
    margin: 0 auto;
    height: 80px;
    padding: 0 var(--container-padding);
    border-bottom: 1px solid var(--color-border);
  }

  .header__logo {
    justify-self: auto;
  }

  .header__cta {
    justify-self: auto;
  }

  .header__logo {
    min-width: 140px;
  }

  .header__logo-main {
    font-size: 1.5rem;
  }

  .header__logo-sub {
    font-size: 0.75rem;
  }

  .global-nav {
    display: flex;
    flex: 1;
    justify-content: center;
    margin-left: var(--space-lg);
    margin-right: var(--space-lg);
  }

  .header__tel-link {
    display: none;
  }

  .header__reserve-btn {
    padding: 10px 24px;
    font-size: 14px;
    min-height: 40px;
  }

  .header__hamburger {
    display: none;
  }

  .mobile-nav {
    display: none;
  }
}