@charset "UTF-8";
/* style.css */


/* 基本設定 */

@import url('reset.css');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100..900&display=swap');

html {
  font-size: 62.5%;
	text-size-adjust: 100%;
	-webkit-text-size-adjust: 100%;
  touch-action: manipulation;
}

body {
	background: #f0831e;
	color: #fff;
	text-align: center;
  font-size: 2.0rem;
	line-height: 1.25;
  font-family: "Noto Sans JP", sans-serif;
  font-weight: 500;
  font-style: normal;
  font-feature-settings: "palt";
  letter-spacing: 0.05em;
}

a{
	outline: none;
	color: #fff;
  text-decoration: none;
}

a:hover {
  opacity: 0.5;
}

a:focus{
	outline: none;
}

img {
	max-width: 100%;
	height: auto;
}

.is-pc {
  display: inherit;
}
.is-sp {
  display: none;
}

#wrapper {
  max-width: 1366px;
  width: 100%;
  margin: 0 auto;
}

#header {
  max-width: 1366px;
  width: 100%;
  display: flex;
  justify-content: space-between;
  position: fixed;
  left: 50%;
  top: 0;
  transform: translateX(-50%);
  box-sizing: border-box;
  padding: 3rem 4rem;
  z-index: 100;
}
#header h1 {
  font-size: 1.8rem;
  line-height: 1;
  font-weight: 500;
}
#nav {
  display: flex;
  justify-content: center;
}

#nav li {
  border-right: #fff 1px solid;
  font-size: 1.4rem;
  line-height: 1;
}
#nav li:nth-last-of-type(1) {
  border-right:none;
}
#nav li a {
  display: block;
  padding: 0 1.5em;
}


#mv {
  width: 100%;
  aspect-ratio: 1366 / 808;
  background: url(../images/mv_bg.jpg) no-repeat center top;
  background-size: auto 100%;
  position: relative;
}

#mv h1 {
  width: calc((810 / 1366)*100%);
  position: absolute;
  left: 50%;
  top: calc((160 / 808)*100%);
  transform: translateX(-50%);
}

#mv .text {
  width: 100%;
  font-size: 2.3rem;
  font-weight: bold;
  line-height: 1.56;
  position: absolute;
  top: calc((540 / 808)*100%);
  text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.75);
  letter-spacing: 0.1em;
}

#mv .icon {
  width: calc((189 / 1366)*100%);
  position: absolute;
  left: calc((982 / 1366)*100%);
  top: calc((347 / 808)*100%);
}



#overview {
  background: linear-gradient(90deg,rgba(19, 0, 0, 0.8) 10%, rgba(80, 44, 46, 0.8) 50%, rgba(19, 0, 0, 0.8) 90%);
  padding: 6rem 2rem 11rem;
}
#overview h2 {
  max-width: 620px;
  margin: 0 auto;
}
#overview .text {
  font-size: 2.0rem;
  line-height: 2.35;
  text-shadow: 0px 0px 5px rgba(0, 0, 0, 0.75);
}


#main {
  margin: 0;
  background: #9f4500 url(../images/main_bg.jpg) no-repeat center top;
  background-size: 1366px auto;
  padding: 6rem 3rem 1rem;
}
#story h2 {
  max-width: 620px;
  padding-top: 6rem;
  margin: 0 auto 2rem;
}
#story .text {
  font-size: 2.4rem;
  line-height: 2;
}

#howto {
  max-width: 950px;
  margin: 15rem auto;
}
#howto h2 {
  background: linear-gradient(180deg,rgba(66, 33, 11, 1) 0%, rgba(150, 61, 14, 1) 100%);
  padding: 2rem;
}
#howto h2 img {
  max-width: 9rem;
}
#howto .flow {
  display: flex;
  justify-content: space-between;
}

#howto .flow {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-top: 4rem;
}

#howto .flowbox {
  width: 31.5%;
  aspect-ratio: 300 / 440;
  background: url(../images/flow_bg.png) no-repeat center top;
  background-size: 100% auto;
  box-sizing: border-box;
  padding: 4rem 2.6rem 1rem;
  text-align: justify;
  font-size: 1.6rem;
  line-height: 2;
  box-shadow: 1.2rem 1.2rem 1.2rem rgba(0, 0, 0, 0.25);
}
#howto .flowbox h3{
  padding: 0 0.4rem;
}

#orange {
  max-width: 900px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.85);
  padding: 8rem 2rem 11rem;
}
#orange h2 {
  max-width: 500px;
  margin: 0 auto;
}
#orange .text {
  font-size: 1.6rem;
  line-height: 2;
  color: #f0831e;
  margin: 2rem auto 2rem;
}
#orange .dial {
  max-width: 500px;
  margin: 0 auto;
}

#footer {
  margin: 2rem auto 2rem;
  font-size: 1.9rem;
}



@media screen and (max-width:960px) {
  html{
    font-size : calc( 10/750 * 100svw ) ;
  }
  #header {
    padding: 2rem;
  }
  .is-pc {
    display: none;
  }
  .is-sp {
    display: inherit;
  }
  #nav {
    position: absolute;
    right: 0;
    top: 0;
    display: block;
    background: rgba(0, 0, 0, 0.75);
    height: 100svh;
    box-sizing: border-box;
    padding-top: 8rem;
    transform: translateX(100%);
    transition: 0.3s;
  }
  #nav.active {
    transform: translateX(0);
  }
  #nav li {
    border-right: none;
    border-top: #fff 1px solid;
    font-size: 2.4rem;
  }
  #nav li a {
    padding: 1.5em;
  }

  #nav li:nth-last-of-type(1) {
    border-bottom: #fff 1px solid;
  }

  #mv {
    aspect-ratio: 30 / 25;
  }
  #mv h1 {
    width: calc((810 / 960)*100%);
  }

  #mv .icon {
    width: calc((189 / 960)*100%);
    left: 78%;
    top: 55%;
  }
  #main {
    background-size: 150% auto;
  }
  #overview .text {
    font-size: 2.2rem;
  }
  #story .text {
    font-size: 2.2rem;
  }
  #howto .flow {
    justify-content: center;
  }
  #howto .flowbox {
    width: 45%;
    margin: 2%;
    padding: 4rem 2.5rem 1rem;
    font-size: 2.2rem;
    line-height: 1.75;
  }
  #orange h2 {
    max-width: 50rem;
  }
  #orange .text {
    font-size: 2.2rem;
  }
  #orange .dial {
    max-width: 50rem;
  }
  
  .btn-trigger {
    position: relative;
    width: 5rem;
    height: 4.4rem;
    cursor: pointer;
  }
  .btn-trigger span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 0.4rem;
    background-color: #fff;
    border-radius: 4px;
  }
  .btn-trigger, .btn-trigger span {
    display: inline-block;
    transition: all .5s;
    box-sizing: border-box;
  }
  .btn-trigger span:nth-of-type(1) {
    top: 0;
  }
  .btn-trigger span:nth-of-type(2) {
    top: 2rem;
  }
  .btn-trigger span:nth-of-type(3) {
    bottom: 0;
  }
  #btn.active span:nth-of-type(1) {
    transform: translateY(2rem) rotate(-45deg);
  }
  #btn.active span:nth-of-type(2) {
    opacity: 0;
  }
  #btn.active span:nth-of-type(3) {
    transform: translateY(-2rem) rotate(45deg);
  }

}