html,
body{
    font-family: 'Roboto', sans-serif;
    overflow-x: hidden;
}
img{
  max-width: 100%;
  vertical-align: bottom;
}
ul{
  list-style-type: none;
  padding: 0;
  margin: 0;
}
.pc{
  display: block;
}
.mb{
  display: none;
}
.logo{
  max-width: 300px;
  margin: 0 auto 0;
}
#index-page{
  background-color: #262626;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  background: url(../images/idx-bg.jpg) no-repeat center bottom;
  background-size: cover;
}
.index-page-wrapper{
  height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column  ;
  justify-content: center;
  align-content: space-between;
  position: relative;
  z-index: 2;
}
#index-content{
  height: 100%;
  width: 100%;
  position: relative;
  z-index: 2;
}

#index-content > .row{
  align-items: center;
  height: 100%;
}
#index-page h1{
  max-width: 1000px;
  margin: 0 auto 20px;
}
#index-page h2 {
  color: #fff;
  font-size: 25px;
  font-weight: 900;
  background: linear-gradient(180deg, #FFF, #ffee00);
  background-size: auto 200%;
  color: transparent;
  background-clip: text;
  -webkit-background-clip: text;
  animation: shineText 3s linear infinite;
}

@keyframes shineText {
  0% {
    background-position: center 200%;
  }
  100% {
    background-position: center 100%;
  }
}
#admin-img{
  max-width: 50vw;
  position: fixed;
  bottom: 0;
  right: 5px;
}
#admin-img img{
  max-height: 90vh;
}
.description .text{
  color: #fff;
  font-style: italic;
  font-size: 20px;
  margin-bottom: 50px;
  text-shadow: 0 0 black;
}
.content-wrapper{
  padding: 30px 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.list-btn{
  display: flex;
  justify-content: center;
}
.btn-register,
.btn-login{
  display: inline-block;
  transition: all .15s linear;
  max-width: 200px;
  margin: 0 10px;
}
.btn-register.animation{
  animation: rotateBtn .2s;
}
@keyframes rotateBtn {
  0%{transform: rotate(5deg);}
  25%{transform: rotate(0);}
  50%{transform: rotate(5deg);}
  75%{transform: rotate(0);}
  100%{transform: rotate(5deg);}
}
.social-icons{
  max-width: 1200px;
  margin: 20px auto 0;
}
.footer-logo{
  padding: 15px 0;
  margin-top: 40px;
  color: #fff;
  text-transform: uppercase;
  font-size: 20px;
  font-weight: bold;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
}
.footer-logo img{
  max-width: 100px;
  margin: 0 auto;
  vertical-align: top;
}
#member-img{
  display: flex;
  gap: 15px;
  justify-content: center;
  max-width: 1000px;
  margin-top: 40px;
  padding: 0 20px;
}
#member-img img{
  width: calc((100% - 30px) / 4);
}
  /* Tablet */
@media only screen and (max-width: 1024px) {
  .logo{
    max-width: 30vw;
  }
  #index-page h1{
      font-size: 4.5vw;
  }
  #index-page h2{
      font-size: clamp(14px, 5vw, 25px);
  }
  .description .text{
    font-size: clamp(12px, 4.4vw, 18px);
  }
}
/* Mobile */
@media only screen and (max-width: 768px) {
  .logo{
      max-width: 35vw;
      margin-bottom: 0;
  }
  #member-img{
  gap: 8px;
}
#member-img img{
  width: calc((100% - 16px) / 4);
}
}
@media only screen and (max-width: 525px) {
  .logo{
    max-width: 50vw;
  }
  .pc{
    display: none;
  }
  .mb{
    display: block;
  }
}