@charset "utf-8";
.header{
  width: 100%;
  height: auto;
  position: fixed;
  top: 0;
  left: 0;
  padding: 0 5%;
  z-index: 2000;
  background-color: rgba(255,255,255,1);
}

.header-inner{
  width: 100%;
  max-width: none;
  justify-content: space-between;
  align-items: center;
  background-color: white;
  padding: 20px 0;
}

.header-logo img{
  height: 50px;
  width: auto;
}

.header-right{
    justify-content: center;
    align-items: center;
    gap: 30px;
}

/* === header-btn === */
.header-btn__box{
  width: fit-content;
}

.header-btn{
  margin: 0 auto;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 50px;
  font-weight: 600;
  overflow: hidden;
}

.header-btn::after{ 
  border-radius: 0px;
  background: linear-gradient(
    to right,
    #215195 0%,
    #2c65b6 10%,
    #238ec4 20%, 
    #39ceff 50%, 
    #238ec4 80%, 
    #2c65b6 90%,
    #215195 100%
  );
  filter: blur(5px);
  background-size: 300% 300%;
  background-position: 0 0;
  animation: moveGradient 4s linear infinite reverse;
}
@keyframes moveGradient {
    0% {
    background-position: 0 0;
    }
    100% {
      background-position: 150% 0;
    }
}

.header-btn::before{ background-image: none; }
.header-btn:hover::before{ background-image: none; }

/* === header-btn end === */

@media screen and (max-width:768px) {
  .header{
    padding: 0 20px;
  }

  .header-btn__box{
    width: 100%;
  }

  .header-btn{
    margin: 20px auto 30px;
  }
}


/* ====================================================================
	ハンバーガーメニュー
==================================================================== */
/* === menu btn === */
.menu-trigger {
    position: relative;
    z-index:3000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-around;
    width: 70px;
    height: 40px;
    background-color: transparent;
    border: 1px solid transparent;
    border-radius: 0;
    padding: 8px 0;
    transition: all 500ms 0s ease;
}

.menu-trigger span {
  display: block;
	width: 50px;
	height: 2px;
  transition: 0.5s;
  background-color: white;
  position: relative;
}

.menu-trigger span::after{
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-gradation);
}

.trigger-open  .menu-trigger span:nth-of-type(1) {
  transition: 0.5s;
  animation: open-up 0.5s forwards;
}
.trigger-open  .menu-trigger span:nth-of-type(2) {
  transition: 0.5s;
  animation: open-down 0.5s forwards;
}
.trigger-open .menu-trigger span::after{
  opacity: 0;
  transition: 0.5s;
}

.trigger-close  .menu-trigger span:nth-of-type(1) {
  transition: 0.5s;
  animation: close-up 0.5s forwards;
}
.trigger-close  .menu-trigger span:nth-of-type(2) {
  transition: 0.5s;
  animation: close-down 0.5s forwards;
}
.trigger-close .menu-trigger span::after{
  opacity: 1;
  transition: 0.1s;
}

@keyframes open-up {
  0%    { transform: translate(0) rotate(0deg);}
  100%  { transform: translate(0px,6px) rotate(15deg); }
}
@keyframes open-down {
  0%    { transform: rotate(0deg); }
  100%  { transform: translate(0px,-5px) rotate(-15deg); }
}

@keyframes close-up {
  0%    { transform: translate(0,6px) rotate(15deg); }
  100%  { transform: translate(0,0) rotate(0deg);}
}
@keyframes close-down {
  0%    { transform: translate(0,-5px) rotate(-15deg); }
  100%    { transform: translate(0,0) rotate(0deg); }
}
/* === menu btn end === */

/* === nav menu === */
.nav{
  position:fixed;
  z-index: 100;
  bottom: 0px;
  left: 50%;
  transform: translate(-50% , 100%);
  width: 101vw;
  height: 100vh;
  color: white;
  background-color: var(--main-color);
  padding: 50px 5%;
  transition: all 0.5s ease;
  overflow-x: auto;
}

.trigger-open .nav {
    transform: translate(-50% ,0);
}

.nav-list{
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 50px 50px;
  width: 100%;
  max-width: 1240px;
  margin: 50px auto 0;
}

.nav-item{
  display: block;
  width: fit-content;
}

.nav-item:nth-of-type(1){
  width: 100%;
}

.nav-item a{
  display: block;
  transition: 0.2s;
  width: fit-content;
}

.nav-item a:hover{
  color: #5bd3ff;
  transition: 0.2s;
}

.nav-item__title{
  font-size: 3rem;
  font-weight: 600;
  line-height: 1.5;
}

.nav-item__title__en{
  display: block;
  font-size: 1.6rem;
  font-weight: 400;
}

.nav-item__child{
  margin: 10px 0 0 30px;
  font-size: 1.6rem;
  font-weight: 600;
  position: relative;
}

.nav-item__child::after{
  content: '';
  position: absolute;
  top: 50%;
  left: -20px;
  height: 1px;
  width: 15px;
  background-color: white;
}
/* nav menu end */

.nav .header-btn{
  width: 100%;
  height: 100px;
  font-size: 3rem;
  color: var(--main-color);
  background-color: white;
  border: 1px solid white;
}

.nav .header-btn::after{
  background: transparent;
}

.nav .header-btn:hover{
  background-color: transparent;
  color: white;
}

.nav .header-btn.PC{ display: flex; margin-top: 100px; }
.nav .header-btn.SP{
  display: none;
  margin-top: 50px;
  height: 60px;
}

.header-bottom{
  justify-content: flex-end;
  align-items: flex-end;
  gap: 30px;
  margin: 50px 0 0;
}

.header-tel{
  display: block;
  font-size: 3rem;
  line-height: 1.2;
  padding-left: 40px;
  background-image: url(../img/icon/phone.png);
  background-repeat: no-repeat;
  background-size: 30px auto;
  background-position: top 50% left;
  transition: 0.2s;
}

.header-tel:hover{
  opacity: 0.7;
  transition: 0.2s;
}

.header-tel span{
  display: block;
  font-size: 1.2rem;
  text-align: center;
}

.header-bottom__link a{
  display: block;
  text-align: end;
}

@media screen and (max-width:820px) {
  .nav-list{
    max-width: 300px;
  }

  .nav-item{
    width: 100%;
  }

  .nav .header-btn.PC{ display: none; }
  .nav .header-btn.SP{ display: flex; }

  .header-bottom{
    align-items: center;
    flex-direction: column;
    gap: 20px;
    margin: 100px 0 0;
  }

  .header-bottom__link a{
    text-align: center;
  }

  .header-tel{
    padding-left: 25px;
    padding-right: 25px;
    background-size: 20px auto;
  }
}

/* === nav menu end === */