@charset "utf-8";



.header .nav1{
  height: 100px;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 0 50px;
  background: rgba(249, 245, 245, 0.8);
  z-index: 100;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
}

.header nav ul{
  width: 100%;
  max-width: 510px;
  display: flex;
  flex-wrap: wrap;
}
.header nav li{
  width: calc(100% / 4);
  text-align: center;
  border-right: 1px solid #191919;
}
.header nav ul li:last-child{
  border-right:none;
}

.header nav a{/* liと同じサイズで反応する */
  display: block;
  width: 105px;
  color: #333;
  transition: .4s;
}
.header nav a:hover{
  color:yellowgreen;
}
.icon_Instagram:hover{
  transform: scale(1.3);
}
#btn_open{
    display: none;
  }



/******* 750px *******/ 
@media screen and (max-width:750px) {

  

  .header{
    display: none;
  }
  
  #gnav nav a:hover{
    color: yellowgreen;
  }
  .btn_menu{
    display: block;
    width: 70px;
    height: 40px;
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 100;
    /* background: #777; */
    border-radius: 5px;
  }
  
  .btn_menu span{
    width: 60%;
    height: 2px;
    display: block;
    position: absolute;
    left: 20%;
    background-color: #fff;
    border-radius: 5px;
    transition: 0.2s ease-in-out;
  }
  .btn_menu_black span{
    width: 60%;
    height: 2px;
    display: block;
    position: absolute;
    left: 20%;
    background-color: #191919;
    border-radius: 5px;
    transition: 0.2s ease-in-out;
  }
  .btn_menu span:nth-of-type(1){
    top:10px;
    transform: rotate(0);
  }
  .btn_menu span:nth-of-type(2){
    top:18px;
    transform: scale(1);
  }
  .btn_menu span:nth-of-type(3){
    bottom:10px;
    transform: rotate(0);
  }
  #btn_open:checked + .btn_menu span:nth-of-type(1){
    top:18px;
    transform: rotate(30deg);
  }
  #btn_open:checked + .btn_menu span:nth-of-type(2){
    top:18px;
    transform: scale(0);
  }
  #btn_open:checked + .btn_menu span:nth-of-type(3)
  {
    bottom:18px;
    transform: rotate(-30deg);
  }
  #gnav{
    width: 100%;
    height: 65vh;
    padding: 0;
    background-color: rgba(77, 77, 77,.95);
    text-align: center;
    overflow: hidden;
    position: fixed;
    top: 0;
    z-index: 10;
    right: -100%;
    transition: left .5s,right .5s,top .5s,bottom .5s;
  }
  #btn_open:checked ~ #gnav{
    right: 0;
  }
  .nav_logo{
    width: 150px;
    margin-top: 60px;
    margin-bottom: 30px;
  }
  #gnav ul li{
    padding:10px;
  }
  .navicon_instagram{
    width: 40px;
    margin-top: 30px;
  }

  
}