/* =========================================================
   Header
========================================================= */
#header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background-color: var(--color-white);
  transition: box-shadow 0.3s ease;
}

#header.is-scrolled {
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

#header .header_inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-sm);
}

@media (min-width: 768px) {
  #header .header_inner {
    padding-block: var(--space-m);
  }
}

#header .logo a {
  display: block;
  line-height: 0;
}

.menu-toggle,
#header .nav-backdrop {
  display: none;
}

@media (min-width: 768px) {
  #header .nav > .nav__inner {
    display: contents;
  }

  #header .nav__list--main {
    display: flex;
    gap: 20px;
  }

  #header .nav__list--main .menu-item {
    font-weight: var(--font-weight-bold);
  }

  #header .nav__list--main a {
    color: inherit;
    text-decoration: none;
  }

  #header .menu-item--has-child {
    position: relative;
  }

  #header .menu-item--has-child::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    width: 120%;
    height: 20px;
    transform: translateX(-50%);
  }

  #header .nav__drawer {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    min-width: 220px;
    padding: var(--space-s) 0;
    background-color: var(--color-white);
    border: 1px solid rgba(33, 106, 43, 0.1);
    border-radius: var(--border-radius-m);
    box-shadow: 0 8px 24px rgba(15, 23, 30, 0.12);
    transform: translate3d(-50%, 8px, 0);
    opacity: 0;
    visibility: hidden;
    transition:
      opacity 0.22s cubic-bezier(0.22, 1, 0.36, 1),
      transform 0.22s cubic-bezier(0.22, 1, 0.36, 1),
      visibility 0.22s cubic-bezier(0.22, 1, 0.36, 1);
    z-index: 120;
  }

  #header .menu-item--has-child:hover .nav__drawer,
  #header .menu-item--has-child:focus-within .nav__drawer {
    opacity: 1;
    visibility: visible;
    transform: translate3d(-50%, 0, 0);
  }

  #header .nav__drawer-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  #header .nav__drawer-list li + li {
    border-top: 1px solid rgba(33, 106, 43, 0.25);
  }

  #header .nav__drawer-list a {
    display: block;
    padding: 10px 20px;
    font-size: var(--font-size-fixed-xxs);
    font-weight: var(--font-weight-bold);
    color: var(--color-main);
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 0.2s ease;
  }

  #header .nav__drawer-list a:hover {
    background-color: rgba(33, 106, 43, 0.08);
  }

  #header .nav__list--sub,
  #header .nav__footer,
  #header .menu-item--sp,
  #header .nav__icon {
    display: none;
  }

  #header .nav {
    position: static;
    width: auto;
    height: auto;
    background-color: transparent;
    transform: none;
    visibility: visible;
    pointer-events: auto;
    overflow: visible;
    transition: none;
    will-change: auto;
  }
}

@media (max-width: 767px) {
  #header .header_inner {
    position: relative;
    z-index: 110;
  }

  #header .logo {
    width: 90px;
  }

  .menu-toggle {
    position: relative;
    z-index: 120;
    display: block;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
  }

  .menu-toggle__bar {
    position: absolute;
    left: 10px;
    width: 24px;
    height: 2px;
    background-color: var(--color-black);
    transition:
      transform 0.45s cubic-bezier(0.22, 1, 0.36, 1),
      opacity 0.35s ease,
      background-color 0.35s ease,
      top 0.45s cubic-bezier(0.22, 1, 0.36, 1);
  }

  .menu-toggle__bar:nth-child(1) {
    top: 14px;
  }

  .menu-toggle__bar:nth-child(2) {
    top: 21px;
  }

  .menu-toggle__bar:nth-child(3) {
    top: 28px;
  }

  #header.is-open .menu-toggle {
    position: fixed;
    top: 12px;
    right: 12px;
  }

  #header.is-open .menu-toggle__bar {
    background-color: var(--color-white);
  }

  #header.is-open .menu-toggle__bar:nth-child(1) {
    top: 21px;
    transform: rotate(45deg);
  }

  #header.is-open .menu-toggle__bar:nth-child(2) {
    opacity: 0;
  }

  #header.is-open .menu-toggle__bar:nth-child(3) {
    top: 21px;
    transform: rotate(-45deg);
  }

  #header .nav-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.35);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: none;
    z-index: 104;
  }

  #header.is-open .nav-backdrop {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition:
      opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1),
      visibility 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header.is-closing .nav-backdrop {
    transition:
      opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1),
      visibility 0.55s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header .nav {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: 0;
    width: min(88vw, 360px);
    height: 100vh;
    height: 100dvh;
    background-color: var(--color-main);
    transform: translate3d(100%, 0, 0);
    visibility: hidden;
    pointer-events: none;
    transition: none;
    z-index: 105;
    overflow: hidden;
    will-change: transform;
  }

  #header.is-open .nav {
    transform: translate3d(0, 0, 0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header.is-closing .nav {
    transition: transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header.is-resizing .nav,
  #header.is-resizing .nav-backdrop,
  #header.is-resizing .menu-toggle__bar {
    transition: none !important;
  }

  #header .nav > .nav__inner {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 56px 20px 24px;
    overflow-y: auto;
  }

  #header .nav__list--main .menu-item,
  #header .nav__list--sub .menu-item,
  #header .nav__footer {
    opacity: 0;
    transform: translateX(20px);
    transition:
      opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header.is-open .nav__list--main .menu-item,
  #header.is-open .nav__list--sub .menu-item,
  #header.is-open .nav__footer {
    opacity: 1;
    transform: translateX(0);
  }

  #header.is-open .nav__list--main .menu-item:nth-child(1) { transition-delay: 0.14s; }
  #header.is-open .nav__list--main .menu-item:nth-child(2) { transition-delay: 0.22s; }
  #header.is-open .nav__list--main .menu-item:nth-child(3) { transition-delay: 0.3s; }
  #header.is-open .nav__list--main .menu-item:nth-child(4) { transition-delay: 0.38s; }
  #header.is-open .nav__list--main .menu-item:nth-child(5) { transition-delay: 0.46s; }
  #header.is-open .nav__list--main .menu-item:nth-child(6) { transition-delay: 0.54s; }
  #header.is-open .nav__list--sub .menu-item:nth-child(1) { transition-delay: 0.62s; }
  #header.is-open .nav__footer { transition-delay: 0.7s; }

  #header.is-closing .nav__list--main .menu-item,
  #header.is-closing .nav__list--sub .menu-item,
  #header.is-closing .nav__footer,
  #header:not(.is-open) .nav__list--main .menu-item,
  #header:not(.is-open) .nav__list--sub .menu-item,
  #header:not(.is-open) .nav__footer {
    opacity: 0;
    transform: translateX(16px);
    transition-delay: 0s;
    transition-duration: 0.3s;
  }

  #header .nav__list--main,
  #header .nav__list--sub {
    display: block;
    flex: none;
    gap: 0;
    margin: 0;
    padding: 0;
    list-style: none;
  }

  #header .nav__list--main .menu-item,
  #header .nav__list--sub .menu-item {
    border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  }

  #header .nav__list--main a,
  #header .nav__list--sub a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 18px 0;
    font-size: var(--font-size-fixed-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    text-decoration: none;
  }

  #header .menu-item--has-child .nav__drawer {
    position: static;
    top: auto;
    left: auto;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    padding: 0;
    border: none;
    border-radius: 0;
    box-shadow: none;
    transform: none;
    opacity: 1;
    visibility: visible;
    background-color: transparent;
    transition: max-height 0.75s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header .menu-item--has-child.is-open .nav__drawer {
    max-height: 360px;
  }

  #header .menu-item--has-child.is-open .nav__icon--chevron {
    transform: rotate(135deg);
  }

  #header .nav__drawer-list {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  #header .menu-item--has-child .nav__drawer-list li {
    opacity: 0;
    transform: translateY(10px);
    transition:
      opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
      transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li {
    opacity: 1;
    transform: translateY(0);
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(1) {
    transition-delay: 0.08s;
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(2) {
    transition-delay: 0.16s;
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(3) {
    transition-delay: 0.24s;
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(4) {
    transition-delay: 0.32s;
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(5) {
    transition-delay: 0.4s;
  }

  #header .menu-item--has-child.is-open .nav__drawer-list li:nth-child(6) {
    transition-delay: 0.48s;
  }

  #header .menu-item--has-child:not(.is-open) .nav__drawer-list li {
    transition-delay: 0s;
    transition-duration: 0.3s;
  }

  #header .nav__drawer-list a {
    display: block;
    padding: 12px 0 12px 16px;
    font-size: var(--font-size-fixed-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-white);
    white-space: normal;
  }

  #header .nav__drawer-list a:hover {
    opacity: 0.85;
  }

  #header .menu-item--sp {
    display: list-item;
  }

  #header .nav__list--sub {
    display: block;
    margin-top: 8px;
  }

  #header .nav__icon {
    display: block;
    flex-shrink: 0;
  }

  #header .nav__icon--chevron {
    width: 8px;
    height: 8px;
    border-top: 2px solid var(--color-white);
    border-right: 2px solid var(--color-white);
    transform: rotate(45deg);
    transition: transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  }

  #header .nav__icon--external {
    position: relative;
    width: 14px;
    height: 14px;
    border: 1.5px solid var(--color-white);
  }

  #header .nav__icon--external::after {
    content: "";
    position: absolute;
    top: 1px;
    right: 1px;
    width: 6px;
    height: 6px;
    border-top: 1.5px solid var(--color-white);
    border-right: 1.5px solid var(--color-white);
  }

  #header .nav__footer {
    display: block;
    margin-top: auto;
    padding-top: 32px;
    color: var(--color-white);
  }

  #header .nav__footer-logo {
    display: inline-block;
    background-color: var(--color-white);
    padding: var(--space-sm) var(--space-m);
    margin-bottom: 16px;
    line-height: 0;
  }

  #header .nav__footer-logo img {
    display: block;
    width: 90px;
    height: auto;
  }

  #header .nav__footer-name {
    font-size: var(--font-size-fixed-xxs);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-default);
    margin-bottom: 12px;
  }

  #header .nav__footer-address,
  #header .nav__footer-tel {
    font-size: var(--font-size-fixed-xxs);
    font-weight: var(--font-weight-medium);
    line-height: var(--line-height-default);
    margin-bottom: 8px;
  }

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

  @media (prefers-reduced-motion: reduce) {
    #header .nav,
    #header .nav-backdrop,
    .menu-toggle__bar,
    #header .menu-item--has-child .nav__drawer,
    #header .nav__icon--chevron,
    #header .menu-item--has-child .nav__drawer-list li,
    #header .nav__list--main .menu-item,
    #header .nav__list--sub .menu-item,
    #header .nav__footer {
      transition: none;
    }

    #header .nav__list--main .menu-item,
    #header .nav__list--sub .menu-item,
    #header .nav__footer,
    #header .menu-item--has-child .nav__drawer-list li {
      opacity: 1;
      transform: none;
    }
  }
}