/* ------------------------------
  header Styles
------------------------------*/
.site-header{
  width: 100%;
  height: 100px;
  position: fixed;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 1) 0%,
    rgba(0, 0, 0, 0.85) 30%,
    rgba(0, 0, 0, 0.6) 60%,
    rgba(0, 0, 0, 0.3) 80%,
    rgba(0, 0, 0, 0) 100%
  );
  z-index: 9998;
}

.site-header__inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
}

.site-header__logo{
  width: 14%;
  min-width: 120px;
}

.site-header__menu{
  width: 100%;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 2rem;
}

.site-header__nav-list{
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
}

.site-header__nav-list{
  display: flex;
  justify-content: center;
  align-items: center;
  flex-wrap: nowrap;
  height: 100%;
}

.site-header__nav-item{
  font-weight: bold;
  padding: 0 5px;
  margin: 0 5px;
}

.site-header__nav-item a {
  position: relative;
  font-family: "Hiragino Mincho ProN", "游明朝", "Yu Mincho", "MS PMincho", serif;
  font-size: 1.3rem;
  letter-spacing: 0.2em;
  color: #FFF;
  text-decoration: none;
  padding-bottom: 3px;
}

.site-header__nav-item a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  height: 1px;
  width: 100%;
  background-color: #9f9f9f;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.site-header__nav-item a:hover::after {
  transform: scaleX(1);
}

.site-header__nav-item.current-menu-item a::after {
  background-color: #fff;
  transform: scaleX(1);
}

.site-header__contact{
  font-family: "Hiragino Mincho ProN", "游明朝", "Yu Mincho", "MS PMincho", serif;
  line-height: 1.3;
  color: #FFF;
}

.site-header__contact a{
  font-size: 1.8rem;
  font-weight: bold;
  color: #FFF;
}

.site-header__contact a span{
  font-size: 1.4rem;
}

.site-header__contact p{
  font-size: 1.1rem;
  font-weight: 600;
}

@media screen and (max-width: 1020px) {
  .site-header__nav-list{
    flex-direction: column;
    border-bottom: 1px solid #fff;
  }

  .site-header__nav-item{
    margin: 10px 0;
  }

  .site-header__nav-item a{
    font-size: 1.6rem;
  }

  .site-header__contact{
    text-align: center;
    margin-top: 10px;
  }
}

/* ------------------------------
  hamburger Styles
------------------------------*/
/* ハンバーガーボタン */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 50px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 1001;
}

.hamburger span {
  display: block;
  height: 2px;
  background: #fff;
  border-radius: 1px;
  transition: 0.3s;
}

.hamburger.is-open span:nth-child(1) {
  transform: rotate(30deg) translateY(5px);
}

.hamburger.is-open span:nth-child(2) {
  transform: rotate(-30deg) translateY(-5px);
}

@media screen and (max-width: 1020px) {
  .hamburger {
    display: flex;
  }

  .site-header__menu {
    position: fixed; /* ← fixedで画面に固定 */
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #000; /* 任意の背景色 */
    z-index: 1;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    overflow-y: auto; /* メニュー内が多ければスクロール可能に */
  }

  .site-header__menu.is-open {
    display: flex;
  }

  /* オーバーレイ状態でスクロール禁止用 */
  body.is-menu-open {
    overflow: hidden;
  }
}