:root {
  /* レイアウト */
  --max-base-width: 1140px;
  --padding-x-base-pc: 15px;
  --padding-x-base-sp: 16px;

  /* カラー */
  --color-primary: #c30d23;
  --color-black: #000000;
  --color-white: #ffffff;
  --color-text: #707070;

  /* フォントサイズ */
  --font-size-base: 15px;
  --font-size-large: 16px;
  --font-size-small: 12px;

  /* トランジション */
  --transition-base: 0.3s;
  --transition-slow: 0.4s;
}

/* Variable font for general use */
@font-face {
  font-family: "Noto Sans JP";
  src: url("../fonts/Noto_Sans_JP/NotoSansJP-VariableFont_wght.woff2")
    format("woff2");
  font-weight: 100 900;
}

/* Bold weight for specific use cases */
@font-face {
  font-family: "Noto Sans JP";
  src: url("../fonts/Noto_Sans_JP/static/NotoSansJP-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

/* Regular weight for specific use cases */
@font-face {
  font-family: "Noto Sans JP";
  src: url("../fonts/Noto_Sans_JP/static/NotoSansJP-Regular.woff2")
    format("woff2");
  font-weight: 400;
  font-display: swap;
}

/* Arialのフォールバック定義 */
@font-face {
  font-family: "Arial";
  font-style: normal;
  font-weight: normal;
  src: local("Arial"), url("../fonts/Arial/ARIAL.woff") format("woff");
}

html {
  overflow-y: scroll;
}

html,
body {
  padding: 0;
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  color: var(--color-text);
}

.body-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow: hidden;
  &[data-type="detail"] {
    overflow: unset;
  }
}

.body-detail {
  flex: 1;
  position: relative;
}

.body-detail-inner {
  overflow: hidden;
}

main {
  flex: 1;
}

.inner {
  width: 100%;
  max-width: var(--max-base-width);
  padding: 80px var(--padding-x-base-pc) 0;
  margin: 0 auto;
  &[data-start="top"] {
    padding: 0 var(--padding-x-base-pc);
  }
}

.image-fill {
  position: absolute;
  height: auto;
  width: 100%;
  inset: 0px;
  object-fit: cover;
  color: transparent;
}

.visually-hidden {
  display: none;
}

.mobile {
  display: none;
}

.body-scroll-lock {
  overflow: hidden;
  position: fixed;
  width: 100%;
  /* スクロール位置を固定するための調整をJSで行います */
}

@media screen and (max-width: 1024px) {
  .inner {
    padding: 79px var(--padding-x-base-sp) 0;
    &[data-start="top"] {
      padding: 0 var(--padding-x-base-sp);
    }
  }
}
/*** 

====================================================================
  Navigation Menu Header
====================================================================

***/

/* Desktop Navigation */
.header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 15;
  background-color: rgb(0 0 0 / 0%);
  transition: background-color var(--transition-slow) ease;
  &[data-opacity="false"] {
    background-color: var(--color-black);
  }
}

.scrolled {
  background-color: var(--color-black);
}

#submenu .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 var(--padding-x-base-pc);
  max-width: var(--max-base-width);
  margin: 0 auto;
}

.logo-container {
  position: relative;
  aspect-ratio: 305 / 37;
  width: min(13vw, 152px);
}

.logo-image {
  position: absolute;
  height: 100%;
  width: 100%;
  inset: 0px;
  color: transparent;
  -webkit-filter: brightness(0) invert(1);
  filter: brightness(0) invert(1);
}

.nav-menu {
  display: flex;
  justify-content: center;
}

.nav-items {
  display: flex;
  align-items: center;
  gap: 21px;
}

.nav-menu a {
  display: block;
  color: var(--color-white);
  transition: var(--transition-base);
  font-size: var(--font-size-base);
  line-height: 120%;
}

.nav-menu .nav-btn a {
  border: 1px solid var(--color-white);
  background-color: var(--color-primary);
  text-align: center;
  color: var(--color-white);
  border-radius: 24px;
  padding: 10px 0;
  width: 152px;
  opacity: 1;
  transition: opacity var(--transition-base);
  font-size: var(--font-size-base);
  font-weight: bold;
  svg {
    display: none;
  }
}

.nav-menu .nav-btn a:hover {
  opacity: 0.6;
}

.nav-menu .nav-btn2 a {
  border: 1px solid var(--color-white);
  background-color: var(--color-white);
  text-align: center;
  color: var(--color-black);
  border-radius: 24px;
  padding: 10px 0;
  width: 152px;
  opacity: 1;
  transition: opacity var(--transition-base);
  font-size: var(--font-size-base);
  font-weight: bold;
  svg {
    display: none;
  }
}

.nav-menu .nav-btn2 a:hover {
  opacity: 0.6;
}

#submenu-mobile {
  display: none;
}

.nav-items-sp {
  display: block;
}

.menu-btn {
  display: none;
}

/* mobile
  ------------------------------ */
@media screen and (max-width: 1024px) {
  #submenu .container {
    padding: 0 var(--padding-x-base-sp);
  }

  .logo-container {
    width: 152px;
  }

  .nav-menu {
    display: block;
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 0;
    overflow: hidden;
    transition: width var(--transition-base) ease;
    padding: 75px 20px 0;
  }

  .nav-items {
    display: none;
  }

  .nav-items li {
    padding-bottom: 18px;
    margin-bottom: 17px;
    border-bottom: 1px solid var(--color-white);
  }

  .nav-items a {
    color: var(--color-white);
    font-weight: 500;
    font-size: var(--font-size-large);
    line-height: 120%;
  }

  .nav-menu .nav-btn2 {
    border-bottom: 0;
    display: flex;
    margin-top: 32px;
    margin-bottom: 22px;
    justify-content: center;
    margin-bottom: 0;
    a {
      position: relative;
      width: 232px;
      font-size: var(--font-size-large);
      color: var(--color-white);
      background-color: var(--color-black);
      border: 1px solid var(--color-white);
      svg {
        display: inline-block;
        position: absolute;
        right: 12px;
      }
    }
  }

  .nav-menu .nav-btn {
    border-bottom: 0;

    display: flex;
    justify-content: center;
    padding-bottom: 0;
    a {
      position: relative;
      width: 232px;
      font-size: var(--font-size-large);
      svg {
        display: inline-block;
        position: absolute;
        right: 12px;
      }
    }
  }

  /* ハンバーガーメニューのスタイル */
  .menu-btn {
    display: block;
    position: relative;
    z-index: 2;
    cursor: pointer;
  }

  .menu-btn-icon {
    position: relative;
    aspect-ratio: 1/1;
    width: 36px;
  }

  .menu-btn-close {
    display: none;
  }

  /* ハンバーガーメニューがクリックされた時の動作 */
  .show-nav {
    width: 100%;
    z-index: 2;
    background-color: var(--color-black);
    overflow-y: auto;
  }

  .show-nav .nav-items {
    display: block;
  }

  .show-btn .menu-btn-open {
    display: none;
  }

  .show-btn .menu-btn-close {
    display: block;
  }
}

/*** 
====================================================================
  footer
====================================================================
***/

.footer {
  background-color: var(--color-black);
  padding-top: 32px;
  padding-bottom: 24px;
}

.footer .container {
  max-width: var(--max-base-width);
  padding: 0 var(--padding-x-base-pc);
  margin: 0 auto;
}

.footer_items {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer_opelo_logo {
  position: relative;
  aspect-ratio: 305/37;
  height: 21px;
}

.footer_osaki_logo {
  position: relative;
  margin-top: 21px;
  color: var(--color-white);
  font-size: var(--font-size-large);
  font-weight: 500;
}

.footer_x_logo {
  position: relative;
  aspect-ratio: 1/1;
  margin-top: 21px;
  height: 30px;
}

.footer_links {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--color-white);
}

.footer_links-item {
  border-left: 1px solid var(--color-white);
  padding-left: 24px;
  a {
    color: var(--color-white);
    font-size: var(--font-size-large);
    font-weight: 500;
  }
}

.footer_copyright {
  margin-top: 16px;
  text-align: center;
  color: var(--color-white);
  font-size: var(--font-size-base);
  font-weight: 500;
}

@media screen and (max-width: 769px) {
  .footer .container {
    padding: 0 var(--padding-x-base-sp);
  }
}

@media screen and (max-width: 769px) {
  .footer {
    padding: 22px 0 24px;
  }

  .footer_items {
    display: grid;
    justify-content: center;
    grid-template-areas:
      "a"
      "b";
    gap: 32px;
  }

  .footer_logos {
    display: grid;
    justify-self: center;
    grid-area: b;
  }

  .footer_osaki_logo {
    justify-self: center;
    color: var(--color-white);
    font-size: var(--font-size-small);
    font-weight: 500;
  }

  .footer_x_logo {
    margin: 30px auto 0;
  }

  .footer_links {
    grid-area: a;
    gap: 8px;
  }

  .footer_links-item {
    padding-left: 8px;
    a {
      color: var(--color-white);
      font-size: var(--font-size-small);
      font-weight: 500;
    }
  }

  .footer_copyright {
    margin-top: 26px;
    font-size: var(--font-size-small);
  }
}

@media screen and (max-width: 769px) {
  .desktop {
    display: none;
  }
  .mobile {
    display: block;
  }
}