* {
  box-sizing: border-box;
}


header {
    width: 100%;
    padding-right: 15px;
    padding-left: 15px;
    padding-bottom: 10px;
    background: #fff; /* 背景色にグレーを指定 */
    position: fixed;
    top: 0;
    z-index: 100;
    display: flex;
    padding-top: 10px;
    -webkit-box-shadow: 3px 3px 10px #ab9173;
    box-shadow: 3px 3px 10px #ab9173;
    font-weight: bold;
}

.logo {
    font-size: 25px;

}

header nav {
    margin-top: 15px;
    margin-right: 0;
    margin-left: auto;
    margin-bottom: 0;
}

header ul {
  display: flex;
  list-style: none;
  padding: 0;
  margin: 0;
	    margin-top: 0px;
}

header a {
    color: #666;
    text-decoration: none;
    display: block;
    padding: 0 10px;
    line-height: 140%;
}
header a:hover {
    color: #F38F1E;
}
.sm {
  display: none;
}


/**********************************　
以下、ハンバーガーメニューの設定　
************************************/

@media (max-width: 900px) {

  .pc {
    display: none;
  }

  #hamburger {
    background-color: transparent;
    position: relative;
    cursor: pointer;
    margin: 0 0 0 auto;
    height: 40px;
    width: 40px;
  }

  .icon span {
    position: absolute;
    left: 15px;
    width: 30px;
    height: 4px;
    background-color: #ccc;
    border-radius: 8px;
    transition: ease 0.75s;
  }

  .icon span:nth-of-type(1) {
    top: 10px;
  }
  .icon span:nth-of-type(2) {
    top: 20px;
  }
  .icon span:nth-of-type(3) {
    bottom: 6px;
  }

  .close span:nth-of-type(1) {
    transform: rotate(45deg);
    top: 28px;
  }

  .close span:nth-of-type(2) {
    opacity: 0;
  }

  .close span:nth-of-type(3) {
      transform: rotate(-45deg);
      top: 28px;
  }

  .sm {
    top: 60px;
    right: 0px;
    position: absolute;
    z-index: 10;
    width: 300px;

    background-color: rgba(0,0,0,0.8);
    color: #000;
  }

header ul {
    flex-direction: column;
  }


header li {
    padding: 10px 0px;
    border-bottom: 1px solid #C8C8C8;
    text-align: center;
}	
header a {
    color: #fff;
    text-decoration: none;
    display: block;
    padding: 0 10px;

}
header a:hover {
    color: #ed1e79;
}
}
@media (max-width: 500px) {
	  .sm {
    width: 70%;
  }
header li {
    padding: 0px 0px;
    border-bottom: 1px solid #C8C8C8;
    text-align: center;
}	
header a {
    	color: #FFFFFF;
    text-decoration: none;
    display: block;
    padding: 0px 5px;

    font-size: 14px;
}
	header li a{padding: 20px 5px;}
header .button-shiro a {
    font-size: 15px;
}
header .button-shirowaku a {
    font-size: 15px;
}	
}