:root {
  --color-navy: #003f6b;
  --color-gold2: #dabf73;
  --header-height: 72px;
}

section[id],
footer[id] {
  scroll-margin-top: var(--header-height);
}

.site-header-sentinel {
  height: 1px;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  height: var(--header-height);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}

.site-header--visible {
  opacity: 1;
  pointer-events: auto;
}

.site-header__bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  background-color: #f2efe9;
  pointer-events: none;
}

.site-header__bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 90%;
}

.site-header__inner {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 16px;
  width: min(1440px, 100%);
  height: 100%;
  margin: 0 auto;
  padding: 0 40px;
}

.site-header__logo {
  flex-shrink: 0;
  display: block;
  width: 72px;
  line-height: 0;
}

.site-header__logo img {
  width: 72px;
  height: auto;
}

.site-header__brand {
  display: flex;
  align-items: center;
  gap: 20px;
  min-width: 0;
}

.site-header__title {
  margin: 0;
  color: var(--color-navy);
  font-family: "Barlow", sans-serif;
  font-size: 40px;
  font-weight: 900;
  line-height: 1.5;
  white-space: nowrap;
}

.site-header__tagline {
  margin: 0;
  color: var(--color-navy);
  font-size: 16px;
  font-weight: 900;
  line-height: 1.5;
  white-space: nowrap;
}

.site-header__menu-btn {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  width: 38px;
  height: 32px;
  margin-left: auto;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.site-header__menu-icon {
  grid-area: 1 / 1;
  width: 100%;
  height: auto;
  transition: opacity 0.2s ease;
}

.site-header__menu-icon--close {
  width: 32px;
  opacity: 0;
}

.site-header--menu-open .site-header__menu-icon--open {
  opacity: 0;
}

.site-header--menu-open .site-header__menu-icon--close {
  opacity: 1;
}

.site-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  visibility: hidden;
  pointer-events: none;
}

.site-menu--open {
  visibility: visible;
  pointer-events: auto;
}

.site-menu__overlay {
  position: absolute;
  top: var(--header-height);
  right: 0;
  bottom: 0;
  left: 0;
  background-color: rgb(0 0 0 / 50%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.site-menu--open .site-menu__overlay {
  opacity: 1;
}

.site-menu__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(372px, 100%);
  height: 100%;
  overflow-y: auto;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.site-menu--open .site-menu__panel {
  opacity: 1;
}

.site-menu__list {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: calc(var(--header-height) + 32px) 15px 40px 16px;
  list-style: none;
  background-image: url(../assets/img/bg_sp.webp);
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
}

.site-menu__item {
  position: relative;
  transition: opacity 0.3s ease;
}

.site-menu__item::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  height: 1px;
  background-color: var(--color-navy);
}

.site-menu__item:hover {
  opacity: 0.7;
}

.site-menu__link {
  display: grid;
  grid-template-columns: 16px 1fr;
  grid-template-rows: auto auto;
  align-items: center;
  text-align: center;
  column-gap: 16px;
  row-gap: 4px;
  padding: 24px 0;
  color: var(--color-navy);
}

.site-menu__link.site-menu__link--featured {
  position: relative;
  display: block;
  margin-bottom: 24px;
  padding: 16px 16px 16px 32px;
  background-color: var(--color-navy);
  color: var(--color-gold2);
}

.site-menu__arrow {
  grid-column: 1;
  grid-row: 1 / span 2;
  align-self: center;
  width: 16px;
  height: 16px;
}

.site-menu__link.site-menu__link--featured .site-menu__arrow {
  position: absolute;
  top: 50%;
  left: 16px;
  transform: translateY(-50%);
}

.site-menu__ja,
.site-menu__title {
  grid-column: 2;
  grid-row: 1;
}

.site-menu__en {
  grid-column: 2;
  grid-row: 2;
}

.site-menu__ja {
  display: block;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.site-menu__en {
  display: block;
  margin-top: 4px;
  font-family: "Barlow", sans-serif;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  opacity: 0.6;
}

.site-menu__link.site-menu__link--featured .site-menu__title {
  display: block;
  font-family: "Barlow", sans-serif;
  font-size: 40px;
  font-weight: 700;
  line-height: 1;
  text-align: center;
}

.site-menu__link.site-menu__link--featured .site-menu__en {
  display: block;
  margin-top: 5px;
  font-family: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", sans-serif;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  opacity: 1;
}

@media (max-width: 1023px) {
  .site-header__tagline {
    display: none;
  }
}

@media (max-width: 1023px) {
  .site-header__bg-pc {
    display: none;
  }

  .site-menu__bg-img--pc {
    display: none;
  }
}

@media (min-width: 1024px) {
  .site-header__bg-sp {
    display: none;
  }

  .site-menu__bg-img--sp {
    display: none;
  }

  .site-menu__list {
    padding: calc(var(--header-height) + 47px) 15px 40px 16px;
  }
}