@keyframes slide-in {
  0% {
    transform: translateX(100%);
  }
  100% {
    transform: translateX(0);
  }
}
@keyframes slide-out {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(100%);
  }
}

@keyframes show {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}
@keyframes hide {
  0% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  box-shadow: none;
  position: relative;
  text-indent: -500vw;
  width: 4rem;
  height: 4rem;
  span {
    position: absolute;
    top: 50%;
    left: 10%;
    width: 80%;
    height: 3px;
    margin-top: -1px;
    border-radius: 4px;
    color: #666;
    background-color: currentColor;
    transition: background-color 0.3s;
    transition-delay: 0.3s;
    &:before,
    &:after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      right: 0;
      width: 60%;
      height: 3px;
      margin-left: auto;
      margin-right: auto;
      border-radius: 4px;
      display: inline-block;
      background: #333;
      transition: transform 0.3s, width 0.3s, margin-top 0.3s;
      transition-delay: 0s, 0s, 0.3s;
    }
    &:before {
      margin-top: -1rem;
    }
    &:after {
      margin-top: 1rem;
    }
  }
  &[aria-expanded="true"] {
    span {
      color: #333;
      transition: background-color 0.3s;
      transition-delay: 0s;
    }
  }
  &:hover {
    span {
      &:before,
      &:after {
        width: 100%;
        transition: width 0.3s;
      }
    }
  }
}

.ui-dialog.mainmenu {
  position: fixed !important;
  width: 100% !important;
  height: 100% !important;
  top: 0 !important;
  left: 0 !important;
  padding: 0;
  border: none;
  background: none;
  &:before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.8);
    backdrop-filter: blur(5px);
    animation: show 0.3s;
  }
  .ui-dialog-titlebar,
  .ui-dialog-content {
    animation: slide-in 0.3s;
  }
  .ui-dialog-titlebar {
    background: #999;
    border: none;
    margin: 0;
    padding: 0;
    height: 0;
    z-index: 3;
    .ui-dialog-title {
      display: none;
    }
    .ui-dialog-titlebar-close {
      position: absolute;
      top: calc(25px / 2);
      right: 1.5rem;
      text-indent: -300vw;
      color: #333;
      width: 4rem;
      height: 4rem;
      display: inline-block;
      padding: 0;
      margin: 0;
      box-shadow: none;
      border: none;
      border-radius: 100%;
      background: none;
      overflow: hidden;
      .ui-icon {
        display: none;
      }
      &:before,
      &:after {
        content: "";
        width: 2rem;
        height: 2px;
        background: currentColor;
        position: absolute;
        top: 50%;
        left: 50%;
        margin: -1px 0 0 -10px;
        transition: transform 0.3s;
      }
      &:before {
        transform: rotate(45deg);
      }
      &:after {
        -webkit-transform: rotate(-45deg);
        transform: rotate(-45deg);
      }
      &:hover {
        &:before,
        &:after {
          -webkit-transition: transform 0.5s;
          transition: transform 0.5s;
        }
        &:before {
          -webkit-transform: rotate(225deg);
          transform: rotate(225deg);
        }
        &:after {
          -webkit-transform: rotate(135deg);
          transform: rotate(135deg);
        }
      }
    }
  }
  .ui-dialog-content {
    position: absolute;
    top: 0;
    right: 0;
    margin: 0;
    display: inline-block;
    width: auto !important;
    min-width: 50%;
    max-width: 100%;
    height: 100% !important;
    overflow: auto;
    overflow-x: hidden,
  }
  &.close {
    display: block !important;
    &:before {
      animation: hide 0.3s;
    }
    .ui-dialog-titlebar,
    .ui-dialog-content {
      animation: slide-out 0.3s;
    }
  }
  ul.menu {
    font-size: 2.4rem;
    font-weight: 600;
    padding: 0 0 2rem 0;  //8rem 2rem 2rem 2rem;
    background-color: #fff;
    li {
      margin: 0;
      padding: 0 1rem;
      display: block;
      max-height: 100%;
      transition: max-height 0.5s;
      a {
        text-decoration: none;
        color: #333;
        display: block;
        padding: 1rem;
        transition: color 0.3s, background-color 0.3s;
        &:hover {
          background-color: #999;
          color: #fff;
        }
      }
    }
    .back {
      display: flex;
      align-items: center;
      padding: 0 2rem;
      height: 6.5rem;
      max-height: none !important;
      border: none;
      color: #333;
      background-color: #ccc;
      position: sticky;
      top: 0;
      left: 0;
      width: 100%;
      z-index: 2;
      button,
      span {
        visibility: hidden;
        opacity: 0;
        transition: visibility 0.3s, opacity 0.3s;
      }
      button {
        display: inline-block;
        overflow: hidden;
        width: auto;
        height: 4rem;
        padding-left: 4rem;
        margin: 0 1rem 0 -0.5rem;
        border: none;
        font-weight: 600;
        color: #333;
        background-color: transparent;
        position: relative;
        span {
          &:first-child {
            display: inline-block;
            text-indent: -500vw;
          }
        }
        &:before,
        &:after {
          content: "";
          position: absolute;
          top: 50%;
          left: 2rem;
          display: inline-block;
          width: 1rem;
          height: 1rem;
          margin-top: -0.6rem;
          margin-left: -0.3rem;
          border: 2px solid currentColor;
          border-right: 0;
          border-top: 0;
          transform: rotate(45deg);
          transition: margin-left 0.3s;
        }
        &:after {
          opacity: 0.5;
        }
        &:hover {
          &:before {
            margin-left: -1.3rem;
          }
          &:after {
            margin-left: -0.8rem;
          }
        }
      }
      & + li {
        margin-top: 1rem;
      }
    }
    > li {
      > a, span, button {
        transform: translateX(0);
        transition: transform 0.3s;
      }
      &.menu-item--expanded {
        > a, span, button {
          position: relative;
          &:before,
          &:after {
            content: "";
            position: absolute;
            top: 50%;
            right: 2rem;
            display: inline-block;
            width: 1rem;
            height: 1rem;
            margin-top: -0.7rem;
            border: 2px solid currentColor;
            border-left: 0;
            border-bottom: 0;
            transform: rotate(45deg);
            transition: right 0.3s;
          }
          &:after {
            opacity: 0.5;
          }
          &:hover {
            &:before {
              right: 1rem;
            }
            &:after {
              right: 1.5rem;
            }
          }
        }
        > ul.menu {
          position: absolute;
          top: 0;
          left: 0;
          margin: 0;
          padding-top: 7.5rem;
          width: 100%;
          height: 100%;
          z-index: 1;
          transform: translateX(100%);
          visibility: hidden;
          transition: transform 0.3s, visibility 0.3s;
          li {
            max-height: 0;
          }
        }
        &.open {
          > ul.menu {
            transform: translateX(0);
            visibility: visible;
            li {
              max-height: 100%;
            }
          }
        }
      }
    }
    &.submenu-open {
      > li {
        max-height: 0;
        > a, span, button {
          transform: translateX(-100%);
          visibility: hidden;
          transition: transform 0.3s, visibility 0.3s;
        }
      }
      .back {
        button,
        span {
          transform: none;
          visibility: visible;
          opacity: 1;
          transition: opacity 0.3s, visibility 0.3s;
        }
      }
    }
  }
  & + .ui-widget-overlay {
    display: none;
  }
}

body {
  &.touch-device {
    .ui-dialog.mainmenu {
      ul.menu {
        .back {
          button {
            &:before {
              transition: none;
            }
            &:after {
              display: none;
            }
            &:hover {
              &:before {
                margin-left: inherit;
              }
            }
          }
        }
      }
    }
  }
  &.toolbar-horizontal {
    .ui-dialog.mainmenu {
      .ui-dialog-titlebar {
        margin-top: 8rem;
      }
      ul.menu {
        .back {
          margin-top: 8rem;
        }
        ul.menu {
          margin-top: 8rem;
          ul.menu {
            margin-top: 0;
          }
        }
      }
    }
  }
  &.toolbar-vertical {
    .ui-dialog.mainmenu {
      .ui-dialog-titlebar {
        margin-top: 4rem;
      }
      ul.menu {
        .back {
          margin-top: 4rem;
        }
        ul.menu {
          margin-top: 4rem;
          ul.menu {
            margin-top: 0;
          }
        }
      }
    }
  }
}

//800px
@media screen and (max-width: 50em) {
  .ui-dialog.mainmenu {
    .ui-dialog-content {
      min-width: 40rem;
    }
  }
}
//479px
@media screen and (max-width: 29.9375em) {
  .ui-dialog.mainmenu {
    .ui-dialog-content {
      min-width: 100%;
    }
  }
}