@charset "UTF-8"; /* 文字化け防止 */

h3 {
  margin-top: -100px;
  padding-top: 100px;
  font-size: 2.5rem;
  color: #fff;
}

body {
  background-color: #000;
  background-image: url(./_img/hanabi_pink1.gif), url(./_img/hanabi_yellow2.gif),
    url(./_img/hanabi_green1.gif), url(./_img/hanabi_yellow1.gif),
    url(./_img/hanabi_blue1.gif), url(./_img/hanabi_purple1.gif),
    linear-gradient(to bottom, #110338, #47568f);
  background-repeat: no-repeat;
  background-position: 0% 85%, top left, bottom right, 85% 0%, top left,
    bottom right, center;
  background-attachment: fixed;
}

.top_image {
  position: relative;
  margin-top: 90px;
  width: 100%;
  height: 38vw;
  background-color: none;
  animation-name: fade;
  animation-duration: 2s;
}
.top {
  z-index: 5;
  position: absolute;
  width: 68%;
  height: 38vw;
  margin-left: 16%;
}
.haikei {
  position: absolute;
  object-fit: cover;
  transform: translate(-50%, -50%);
  top: 50%;
  left: 50%;
  z-index: 0;
  /* opacity: 0.5; */
  filter: blur(3px);
  width: 100%;
  height: 38vw;
}

.fade {
  margin-top: 0;
  width: 74%;
  margin-left: 13%;
  animation-name: fade;
  animation-duration: 2s;
  z-index: 6;
}

.buttons {
  z-index: 6;
  display: flex;
}

.buttons a {
  display: block;
  flex-grow: 1;
  text-align: center;
  color: #fff;
  font-size: 2rem;
  border-right: 2px solid #fff;
  background-color: #ee3434;
  padding-top: 20px;
  padding-bottom: 10px;
  line-height: 1em;
  text-decoration: none;
  transition: 0.5s;
}

.buttons a:hover {
  color: #ee3434;
  background-color: #fff;
}

.buttons span {
  font-size: 1rem;
}

.setumei {
  margin-top: 60px;
}
.theme p {
  line-height: 1.2em;
  text-align: center;
  font-size: 2rem;
  color: #fff;
}
.en {
  font-size: 0.8em;
}
.setumei p {
  margin-left: 5%;
  font-size: 1.2rem;
  color: #fff;
}

.SentenceLetterSpacing{
  letter-spacing: 3px;
}

.BigLetter{
  font-size: 2rem;
}

.join {
  margin-top: 40px;
}
.setumei h3,
.join h3 {
  font-size: 2rem;
  font-weight: normal;
}

@keyframes infinity-scroll-left {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-100%);
  }
}
.scroll-infinity__wrap {
  display: flex;
  overflow: hidden;
}
.scroll-infinity__list {
  display: flex;
  list-style: none;
  padding: 0;
}
.scroll-infinity__list--left {
  animation: infinity-scroll-left 40s infinite linear 0.5s both;
}
.scroll-infinity__item {
  width: calc(100vw / 5);
  height: 200px;
}
.scroll-infinity__item > img {
  width: 100%;
}
.join_button {
  margin-left: 17vw;
  margin-bottom: 60px;
  width: 40vw;
  height: 10vw;
  background-color: #004c83;
  border: 3px solid #004c83;
  border-radius: 10px;
  transition: 0.5s;
  position: relative;
  box-shadow: 7px 7px 5px 0px #004c83;
  text-decoration: none;
}

.join_button:hover {
  background-color: #fff;
  border: 3px solid #004c83;
}

#join_button {
  display: grid;
  place-items: center;
  grid-template-rows: 10vw;
  grid-template-columns: 9vw 1fr;
}

.join_button .join_link {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.join_image {
  margin-top: 2vw;
  width: 8vw;
  height: 8vw;
  margin-left: 1vw;
  border-radius: 4.5vw;
}

.join_button p {
  font-size: 1.5rem;
  color: #fcf7b0;
}

.join_button:hover p {
  color: #004c83;
}