/* ========================================
  HEADER
======================================== */

/* PC */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-header);
  background-color: rgba(255, 255, 255, 0.89);
  box-shadow: var(--shadow-sm);
  height: 5rem;
  width: 100%;
}

.header-inner {
  padding: 0 4rem 0 5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: 100%;
}

.header-logo img {
  width: 180px;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: 40px;
  font-size: var(--font-size-base);
  font-weight: 400;
}

.header-nav-links {
  display: flex;
  align-items: center;
  gap: 1.85rem;
}

.header-nav-btns {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.header-nav-link {
  white-space: nowrap;
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  transition: text-decoration-color 0.3s ease;
}

.header-nav-link:hover {
  text-decoration-color: var(--color-primary);
}

.header-nav .btn {
  padding: 0.75rem 2rem;
  font-size: var(--font-size-base);
}

/* PCではハンバーガーを非表示 */
.header-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  padding: 0.25rem;
}

/* タブレット・スマホ */
@media (max-width: 1200px) {
  .header-inner {
    padding: 0 1rem 0 2.5rem;
  }
  .header-nav {
    display: none;
  }

  .header-menu-btn {
    display: flex;
  }
}
@media screen and (max-width: 767px) {
  .header-inner {
    padding: 0 1rem 0 1.25rem;
  }
}
/* ========================================
  HEADER - Mobile overlay
======================================== */


.header-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: var(--z-overlay);
  display: none;
}

.header-overlay.is-active {
  display: block;
}

/* ========================================
   HEADER - Mobile slide-in menu
======================================== */

/* PC */
.header-mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 100%;
  background-color: var(--white);
  z-index: var(--z-mobile-menu);
  transform: translateX(100%);
  transition: var(--transition-transform);
}

.header-mobile-menu.is-open {
  transform: translateX(0);
}

.header-mobile-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: 1rem;
  height: 5rem;
}

.header-mobile-close-btn {
  background: none;
  border: none;
  padding: 0.25rem;
}

.header-mobile-nav {
  padding: 1.25rem 3.75rem;
  margin: 2.5rem auto;
  max-width: 800px;
}


.header-mobile-nav-link {
  display: block;
  padding: 1.25rem;
  font-size: 1.125rem;
  font-weight: 500;
  line-height: 1;
  border-bottom: 0.5px solid #333;
}

.header-mobile-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-top: 3.5rem;
  padding-inline: 2rem;
}

.header-mobile-cta .btn {
  width: 300px;
  font-size: 1rem;
  padding: 01em 0;
}

@media screen and (max-width: 767px) {

  .header-mobile-nav {
    padding: 1.25rem 3.75rem;
    margin: 2.5rem 0;
  }
}