/* リセットCSS */
body {
  margin: 0px;  
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ヘッダーで使用 */
.header {
  position: fixed;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  height: 100px;
  background-color: black;
}

.header__layout {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: inherit;
  margin: 0 auto;
  padding: 0 20px;
}

.header__logo {
  position: relative;
  z-index: 12;

  a {
    font-size: 24px;
    color: #fff;
    transition: all 0.3s;

    &:hover {
      opacity: 0.7;
    }
  }
}

.header__nav {
  height: inherit;
}

@media screen and (max-width: 767px) {
  .header__nav {
    display: none;
  }
}

.header__menus {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  height: inherit;
}

.header__menu {
  height: inherit;

  a {
    display: flex;
    align-items: center;
    justify-content: center;
    height: inherit;
    font-size: 18px;
    color: #fff;
    transition: all 0.3s;

    &:hover {
      color: #ffe100;
    }
  }
}

/* ハンバーガーメニュー関連 */
.hamburger {
  display: none;
}

@media screen and (max-width: 767px) {
  .hamburger {
    display: block;
  }
}

.hamburger__icon {
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 40px;
  height: 32px;

  &:hover {
    .hamburger__bar {
      background-color: #ffe100;
    }
  }

  .hamburger__bar {
    background-color: #fff;
    border-radius: 2px;
    width: 100%;
    height: 3px;
    transition: all 0.3s;
  }
}

.hamburger__background {
  display: none;
  position: fixed;
  z-index: 11;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background-color: black;
}

/* ハンバーガーメニューのアニメーション */
.js-hamburger {
  .hamburger__icon {
    position: relative;
    z-index: 12;

    .hamburger__bar {
      position: absolute;

      &:nth-child(1) {
        left: 0;
        top: calc(50% - 1px);
        transform: rotate(45deg);
      }

      &:nth-child(2) {
        opacity: 0;
      }

      &:nth-child(3) {
        bottom: calc(50% - 2px);
        left: 0;
        transform: rotate(-45deg);
      }
    }
  }
}

.js-hamburger-nav {
  display: block;

  .header__menus {
    position: fixed;
    z-index: 12;
    top: 100px;
    left: 0;
    width: 100%;
    height: calc(100% - 100px);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }

  .header__menu {
    width: 100%;
    height: auto;

    a {
      height: auto;
    }
  }
}

.js-background-fixed {
  height: 100%;
  overflow: hidden;
  width: 100%;
}

/* 無視してOK */
.center {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: calc(100vh - 100px);
  margin-top: 100px;
  font-size: 16px;
}

$(function(){
  const bodyElement = $("body");
  const hamburger = $('#hamburger');
  const hamburger_logo = $('#hamburger-logo');
  const hamburger_icon = $('#hamburger-icon');
  const hamburger_nav = $('#hamburger-nav');
  const hamburger_menu = $('#hamburger-nav a');
  const hamburger_background = $('#hamburger-background');

  hamburger_icon.on('click', function() {
    hamburger.toggleClass('js-hamburger');
    hamburger_nav.toggleClass('js-hamburger-nav');
    hamburger_background.fadeToggle(300);
    bodyElement.toggleClass('js-background-fixed');
  });

  hamburger_logo.on('click', function() {
    hamburger.removeClass('js-hamburger');
    hamburger_nav.removeClass('js-hamburger-nav');
    hamburger_background.fadeOut(300);
    bodyElement.removeClass('js-background-fixed');
  });

  hamburger_menu.on('click', function() {
    hamburger.removeClass('js-hamburger');
    hamburger_nav.removeClass('js-hamburger-nav');
    hamburger_background.fadeOut(300);
    bodyElement.removeClass('js-background-fixed');
  });

  $(window).resize(function() {
    var windowWidth = $(window).width();

    if (windowWidth >= 768) {
      hamburger.removeClass('js-hamburger');
      hamburger_nav.removeClass('js-hamburger-nav');
      hamburger_background.fadeOut(300);
      bodyElement.removeClass('js-background-fixed');
    }
  });
});