@import url('https://fonts.googleapis.com/css2?family=Shippori+Mincho:wght@400;500;600;700;800&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@100;300;400;500;700;900&display=swap');

html, body {
  margin: 0;
  top: 0;
  left: 0;
}

.sp {
  display: none;
}

.pc {
  display: block;
}

.contents {
  position: relative;
  font-family: 'Shippori Mincho', serif;
  width: 100%;
  height: 100%;
}

img {
  width: 100%;
  height: 100%;
}

.title {
  font-size: 48px;
  line-height: 50px;
  color: darkgreen;
  text-align: center;
}

.large-text {
  font-size: 20px;
  line-height: 30px;
}

.small-text {
  font-size: 16px;
  line-height: 30px;
}

.vtq-img, .about-contents, .kids-section-share, .works-section {
  width: 60%;
  min-width: 1080px; /* works-titleのセクションのwidthの限界値 */
  cursor: pointer;
}

.hidden-sp {
  display: block;
}

.show-sp {
  display: none;
}

.scroll-animation-wrapper {
  position: fixed;
  left: 10px;
  top: 50%;
  width: 2px;
  height: 16%;
  border-radius: 5px;
  background-color: darkseagreen;

  overflow: hidden;

  z-index: 100;
}

@keyframes move{
    0%{
        top: -100%;
    }
    100%{
        top: 100%;
    }
}

.moving-bar {
    animation-name: move;
    animation-duration: 2s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;

    position: absolute;
    width: 44px;
    height: 100%;
    border-radius: 5px;
    background-color: darkgreen;
}

.menu-opener {
  display: none;
}

.boder-bottom-right {
  width: 100%;
  margin: 1.6rem 0;
  height: 1px;
}


.boder-bottom-left {
  width: 100%;
  margin: 1.6rem 0;
  height: 1px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.boder-line {
  width: 90%;
  height: 1px;
  border-bottom: solid 1px darkseagreen;
}

/* ======================= menu ======================= */
.menu {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  z-index: 100;
  background-color: white;
  border-bottom: 1px solid darkseagreen;
}

.menu-left, .menu-right {
  margin: 1rem;
  color: darkgreen;
}

.menu-right-text {
  color: darkgreen;
  text-decoration: none;
  margin: 0 0.8rem;
}

.youtube {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 3rem;
}


.youtube .to-vtq-description {
  margin-top: 2rem;
  text-align: center;
}

/* ======================= to-vtq ======================= */
.to-vtq {
  /* padding: 40px 0; */
  padding: 80px 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 100px 0 40px 0;
}

.to-vtq-top {
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.to-vtq-description {
  margin: 1rem 0;
  color: darkgreen;
  text-align: center;
}

/* ======================= about ======================= */
.about {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: darkgreen;
}

.about .title {
  margin: 2rem 0 0 0;
}

.about-contents {
  display: flex;
  flex-wrap: wrap;
  width: 60%;
}

.about-contents-link {
  position: relative;
  width: 33%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.about-contents-link img {
  height: 100px;
  width: auto;
  margin: 2rem 0;
}

.contents-name {
  position: absolute;
  left: 50%;
  top: 30%;
  transform: translate(-50%, 50%);
}

.about-contents a {
  color: darkgreen;
}

/* ======================= kids-section ======================= */
.kids-section {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: darkgreen;
  margin: 8rem 0;
}

.share-description {
  text-align: center;
}

.kids-section .title {
  margin-bottom: 0;
}

.kids-section-description {
  margin: 1.2rem 0;
  text-align: center;
}

.kids-section-share {
  background-color: #edf8ec;
  width: 60%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 2rem;
}

.share-text {
  margin: 2rem 0 1rem 0;
}

.kids-section-share .share-description {
  margin: 1rem 0 2rem 0;
}

/* ======================= works ======================= */

.works-section {
  width: 60%;
  height: 100%;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
}

.works {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 28%;
  height: auto;
}

.works-img {
  width: 100%;
  height: auto;
}

.works-title-section {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  margin: 2.4rem 0;
}

.works-subtitle {
  margin-left: 1.6rem;
}

.works-description {
  width: 100%;
  height: 100%;
  border: 2px solid darkseagreen;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.works-example-img {
  position: absolute;
  width: 40px;
  height: 40px;
  left: 2%;
  top: -20px;
}

.works-description-top {
  margin: 1.6rem 0.8rem 0.5rem 0.8rem;
  text-align: center;
}

.works-description-bottom {
  margin: 0.5rem 0 1rem 0;
  text-align: center
}

.footer {
  width: 100%;
  height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 2rem 0;
  border-top: solid 1px darkseagreen;
}

.copyright {
  font-family: 'Noto Sans JP', sans-serif;
  font-size: 12px;
  margin: 3rem 0 1rem 0;
  text-align: center;
}

.signature {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.signature-text {
  font-family: 'Noto Sans JP', sans-serif;
  /* margin: 0 1rem; */
  text-align: center;
}

.donwload-img {
  width: 30px;
  height: 30px;
  margin-top: 30px;
}

.video {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 30px 0 100px 0;
}

.video iframe {
  width: 560px;
  height: 315px;
}

.language {
  color: #191919;
  text-decoration: underline;
}

@media screen and (max-width: 1366px) { /* menuのwidthが1250pxの限界値 */
  .vtq-img, .about-contents, .kids-section-share, .works-section {
    min-width: 840px; /* works-titleのセクションのwidthの限界値 */
  }
  

  .title {
    /* font-size: 48px;
    PCサイズの3/4倍 */
    font-size: 36px;
  }
  
  .large-text {
    /* font-size: 24px;
    PCサイズの3/4倍 */
    font-size: 18px;
  }
  
  .small-text {
    /* font-size: 16px;
    PCサイズの3/4倍 */
    font-size: 12px;
  }

  .copyright {
    font-size: 10.5px;
  }

  .menu-right-text {
    margin: 0 0.4rem;
  }

  .menu-right {
    margin: 1rem 1rem 1rem 0;
    color: darkgreen;
  }

}

@media screen and (max-width: 868px) { /* menuのwidthが1250pxの限界値 */ 
  .vtq-img, .about-contents, .kids-section-share, .works-section {
    width: 90%;
    min-width: unset;
    /* works-titleのセクションのwidthの限界値 */
  }

  .works-title-section {
    width: 100%;
    height: auto;
    align-items: flex-start;
    display: flex;
    flex-direction: column;
    margin: 1.6rem 0;
    min-height: 90px;
  }

  .works-subtitle {
    margin: 1rem 0.1rem;
  }
/* }

@media screen and (max-width: 767px) { */
  .sp {
    display: block;
  }
  
  .pc {
    display: none;
  }

  .hidden-sp {
    display: none;
  }

  .show-sp {
    display: block;
  }

  .menu-opener {
    display: block;
    width: 40px;
    height: 40px;
    min-width: 40px;
    min-height: 40px;
    border: 1.6px solid darkgreen;
    border-radius: 40px;
    margin: 1rem;
    font-size: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: darkgreen;
    z-index: 200;
    transition: .4s;
  }

  .clicked-menu-opener {
    border: 1.6px solid white;
    color: white;
    z-index: 200;
  }

  .menu-right {
    position: absolute;
    top: 0;
    right: -100vw;
    width: 100vw;
    height: auto;
    margin: 0;
    background-color: rgba(143, 183, 143, 0.95);
    border-bottom: 1px solid darkgreen;
    display: flex;
    flex-direction: column;
    padding: 3rem 0;
    transition: .4s;
  }

  .show-menu {
    right: 0;
  }

  .menu-right-text {
    margin: 1rem 0 1rem 3rem;
    color: white;
  }

}

@media screen and (max-width: 767px) {
  .title {
    /* font-size: 48px;
    PCサイズの2/3倍 */
    /* font-size: 32px; */
    font-size: 24px;
    line-height: 30px;
    width: 90%;
    text-align: center;
  }
  
  .large-text {
    /* font-size: 24px;
    PCサイズの2/3倍 */
    /* font-size: 18px; */
    font-size: 14px;
    line-height: 30px;
    width: 90%;
  }
  
  .small-text {
    /* font-size: 16px;
    PCサイズの2/3倍 */
    /* font-size: 12px; */
    font-size: 11px;
    line-height: 24px;
    width: 90%;
  }

  .menu .small-text {
    width: 100%;
  }
  
  .vtq-img, .about-contents, .kids-section-share, .works-section {
    width: 96%;
    min-width: unset;
    /* works-titleのセクションのwidthの限界値 */
  }

  .copyright {
    font-size: 10.5px;
  }

  .boder-bottom-right {
    margin: 0.6rem 0 1.6rem 0;
  }
  
  .boder-bottom-left {
    margin: 0.6rem 0 1.6rem 0;
  }

  .to-vtq {
    padding: 100px 0 40px 0;
    text-align: center;
  }

  .youtube {
    margin-top: 1rem;
  }

  .about-contents {
    justify-content: space-evenly;
  }

  .about-contents-link {
    width: 40%;
  }

  .works-title-section {
    min-height: unset;
  }

  .contents-name {
    width: 100%;
    left: 50%;
    top: 30%;
    transform: translate(-50%, 50%);
    text-align: center;
  }

  .about-contents-link img {
    height: 85px;
  }

  .kids-section {
    margin: 4rem 0;
  }

  .kids-section-description {
    width: 80%;
  }

  .kids-section-share {
    /* background-color: darkseagreen; */
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 2rem 0;
  }

  .share-text {
    margin: 1rem 0 0.5rem 0;
    text-align: center;
  }

  .kids-section-share .share-description {
    margin: 0.5rem 0 1rem 0;
  }

  .logo {
    width: 80px;
    height: auto;
  }

  .signature {
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
  }

  .signature .small-text {
    width: 100%;
  }

  .works-section {
    width: 60%;
    min-width: 280px;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
  }

  .works {
    width: 100%;
    margin-bottom: 3rem;
    min-width: unset;
  }

  .works-title-section {
    margin: 1rem 0;
    align-items: center;
    display: flex;
    flex-direction: row;
    margin: 2.4rem 0;
  }

  .works-subtitle {
    margin: 0 1rem;
  }

  .download-text {
    margin-top: 1rem;
    font-size: 11px;
  }

  .video iframe {
    /* 560 : 315 */
    width: 350px;
    height: 196.875px;
  }

}

@media screen and (max-width: 374px) {
  .video iframe {
    /* 560 : 315 */
    width: 300px;
    height: 168.75px;
  }
}