@import url('https://fonts.googleapis.com/css2?family=Kiwi+Maru:wght@500&display=swap');
*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  text-decoration: none;
}
:root{
  --nav-height: 70px;
  --nav-background: rgba(48, 23, 15, 0.7);
}
.container{
  /*max-width: 600px;*/
  width: 100%;
  margin: 0 auto;
}
nav{
  display: flex;
  align-items: center;
  width: 100%;
  height: var(--nav-height);
  background: var(--nav-background);
  position: fixed;
  top: 0;
  z-index: 10;
}
.logo{
  height: var(--nav-height);
  display: block;
  float: left;
  margin-left: 30px;
}
.logo img{
  height: 70%;
  margin-top: 13%;
}
.logo img:hover{
  height: 80%;
  margin-top: 8%;
  margin-left: -10%;
  transition: 0.1s ease;
}
.nav-links{
  display: flex;
  float: right;
  margin-right: 40px;
}
.nav-links li{
  list-style: none;
  height: var(--nav-height);
  line-height: var(--nav-height);
  text-align: center;
}
.nav-links li a{
  line-height: var(--nav-height);
  padding: 0 25px;
  color: #FFEDB3;
  display: block;
  float: left;
  text-decoration: none;
  position: relative;
}
.nav-links a:hover{
  background-color: rgba(255, 255, 255, 0.3);
  transition: 0.15s ease;
}
.menu{
  cursor: pointer;
  border: none;
  outline: none;
  display: none;
  float: right;
  margin-top: 25px;
  margin-right: 10px;
}
.menu .bar{
  width: 20px;
  height: 2px;
  background: #FFEDB3;
  border-radius: 5px;
  opacity: 1;
  visibility: visible;
  transition: 0.5s ease;
  transform-origin: left;
}
.menu .bar1{
  margin-bottom: 5px;
}
.menu .bar3{
  margin-top: 5px;
}
.menu.toggle .bar1{
  transform-origin: left;
  transform: rotate(45deg);
}
.menu.toggle .bar2{
  opacity: 0;
  visibility: hidden;
}
.menu.toggle .bar3{
  transform-origin: left;
  transform: rotate(-45deg);
}
body{
  font-family: "Kiwi Maru";
  background-color: #FEEEED;
  text-align: center;
  background-image:
    radial-gradient(#FDE9E8 20%, transparent 20%),
    radial-gradient(#FDE9E8 20%, transparent 20%);
  background-size: 40px 40px;
  background-position: 0 0, 20px 20px;
}
.nav-dummy{
  width: 100%;
  height: var(--nav-height);
  background-color: #301715;
  background-image:
    linear-gradient(-90deg, #000000 0%, transparent 75%),
    linear-gradient(#000000 0%, transparent 75%);
  background-size: 30px 30px;
}
.button-area{
  margin:0 auto;
  height:20px;
  margin-bottom:10px;
  text-align: center;
}
.button-area .button{
  display: inline-block;
  width:10px;
  height:10px;
  margin:0 5px;
  border-radius: 50%;
  background-color: #ccc;
  cursor: pointer;
}
.button-area .button.active{
  background-color: #e6b422;
}
.title{
  display:none;
}
.title img{
  width: 100%;
}
.title-area{
  margin:0 auto;
  max-width: 1000px;
}
main{
  max-width: 600px;
  margin:0 auto;
}
.intro{
	display: block;
	margin: 60px 40px;
	padding: 20px 10px 10px 10px;
	border-radius: 40px;
	overflow: hidden;
	text-decoration: none;
	background-color: #f2d2ff;
	text-align: middle;
	box-shadow: 0 0 20px 20px #f2d2ff;
  color: #4b3c69;
}
.abstract_pc p{
	vertical-align: middle;
	font-size: 20px;
  margin: 3px;
}
.abstract_pc{
  display: block;
}
.abstract_device{
  display: none;
}
.intro h1{
  margin: 40px 0 30px 0;
}
.info{
  text-align: left;
  margin: 0 10px;
}
.info dl {
  width: 92%;
	margin: 0 auto;
}
.info dt {
	font-size: 16px;
	margin-bottom: 0.5em;
}
.info dt:before {
	margin-right: 0.5em;
	content: "\02022";
}
.info dd {
	padding-left: 2em;
	margin-bottom: 1em;
  padding-bottom: 1em;
	border-bottom: 3px dotted #000000;
}
.profile{
  color: #4B2D1C;
  padding:10px 30px 30px 30px;
  margin: 30px 0px;
  text-align: left;
  background-color: #FFFFFF;
  border: 1px solid #D0D0D0;
  border-radius: 10px;
}
.profile h1{
  padding: 20px 0 10px 0;
  color: #542D24;
}
.profile p{
  font-size: large;
  padding-top: 15px;
}
.profile a{
  color: #ccc;
  text-decoration: underline;
}
.profile-img{
  text-align: center;
  margin-bottom: 20px;
}
.profile img{
  width: 70%;
}
.profile iframe{
  width: 90%;
  aspect-ratio: 1;
}
.sentences{
  margin: 10px 0 30px 10px;
}
footer{
  color: #FFEDB3;
  padding: 30px 0;
  background-color: #301715;
  background-image:
    linear-gradient(-90deg, #251010 0%, transparent 75%),
    linear-gradient(#251010 0%, transparent 75%);
  background-size: 30px 30px;
}
.footer-left{
  float: left;
  margin: 10px 0 0 40px;
}
.footer-right p{
  text-align: center;
  padding: 10px 40px 10px 0;
}
.twitter{
  font-size: 300%;
  color: #00acee;
}