@charset "utf-8";

* {
  box-sizing: border-box;
}
html {
  font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  font-size: 62.5%;
  -webkit-text-size-adjust: 100%;
}
body {
  font-size: 1.6em;
}
a {
  text-decoration: none;
}
li {
  list-style: none;
}
img {
  max-width: 100%;
}

main section:nth-child(odd) {
  background-color: #fffde5;
}

.content {
  max-width: 810px;
  margin: 0 auto;
  padding: 0 15px;
}
main .content {
  padding: 50px 15px;
}

.content h2 {
  position: relative;
  margin-bottom: 40px;
  padding-bottom: 20px;
  font-size: 2.8rem;
  line-height: 1.4;
  text-align: center;
}
.content h2::before {
  content: '';
  display: inline-block;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 5px;
  background-color: #53aec5;
}
@media screen and (max-width: 480px) {
  .content h2 {
    font-size: 2.4rem;
  }
}
.content h3 {
  padding-bottom: 5px;
  font-size: 1.8rem;
}

/* header */
#header {
  position: fixed;
  width: 100%;
  background-color: #fff;
  z-index: 1000;
}
#headerInner {
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
#headerInner h1 img {
  height: 40px;
}
@media screen and (max-width: 810px) {
  #headerInner {
    padding: 20px 10px;
  }
  #headerInner h1 img {
    height: 35px;
  }
}
@media screen and (max-width: 480px) {
  #headerInner h1 img {
    height: 27px;
  }
}

/* ハンバーガーメニュー */
#toggleNav {
  position: relative;
  width: 50px;
  height: 50px;
  background-color: #ea6d95;
  border-radius: 50%;
  cursor: pointer;
  z-index: 100;
}
#toggleNav span {
  display: block;
  position: absolute;
  width: 25px;
  height: 3px;
  background-color: #fff;
  transition: all 0.4s;
}
#toggleNav span:nth-of-type(1) {
  left: 50%;
  top: 32%;
  transform: translate(-50%, -32%);
}
#toggleNav span:nth-of-type(2) {
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
#toggleNav span:nth-of-type(3) {
  left: 50%;
  top: 68%;
  transform: translate(-50%, -68%);
}

#toggleNav.active span:nth-of-type(1) {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-135deg);
}
#toggleNav.active span:nth-of-type(2) {
  opacity: 0;
}
#toggleNav.active span:nth-of-type(3) {
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(135deg);
}
@media screen and (max-width: 810px) {
  #toggleNav {
    width: 45px;
    height: 45px;
  }
}
@media screen and (max-width: 480px) {
  #toggleNav {
    width: 42px;
    height: 42px;
  }
  #toggleNav span {
    height: 2.5px;
  }
  #toggleNav span:nth-of-type(1) {
    left: 50%;
    top: 30%;
    transform: translate(-50%, -30%);
  }
  #toggleNav span:nth-of-type(3) {
    left: 50%;
    top: 70%;
    transform: translate(-50%, -70%);
  }
}

#headerNav {
  display: none;
  position: fixed;
  z-index: 99;
  right: calc((100vw - 810px) / 2);
  top: 90px;
}
#headerNav.active {
  display: block;
}
#headerNav ul li:not(:first-child) {
  border-top: 1px solid #fff;
}
#headerNav ul li a {
  display: block;
  padding: 15px 20px;
  color: #fff;
  background-color: #ea6d95;
  transition: all 0.4s;
}
#headerNav ul li a:hover {
  color: #ea6d95;
  background-color: #fff;
}
@media screen and (max-width: 810px) {
  #headerNav {
    right: 0;
    top: 85px;
    width: 50%;
  }
}
@media screen and (max-width: 480px) {
  #headerNav {
    top: 82px;
    width: 100%;
  }
}

/* Instagram */
.box {
  padding: 20px;
  background: linear-gradient(135deg, #427eff 0%, #f13f79 70%) no-repeat;
  background-position: 0 0, 5px 5px;
  border-radius: 10px;
}
.box-inner {
  padding: 20px;
  border-radius: 10px;
  background-color: white;
  color: #353535;
}
@media screen and (max-width: 480px) {
  .box {
    padding: 10px;
  }
  .box-inner {
    padding: 10px;
  }
}

#outline {
  text-align: center;
}
#outline h3 {
  display: inline-block;
  margin-bottom: 20px;
  padding: 10px 60px;
  font-size: 2.2rem;
  color: #fff;
  background-color: #ea6d95;
  border-radius: 20px;
}
#outline h3 + p {
  margin-bottom: 20px;
}
@media screen and (max-width: 480px) {
  #outline h3 + p br {
    display: none;
  }
}

#outline p {
  line-height: 1.6;
}
#outline .conditions {
  display: inline-block;
  margin-bottom: 12px;
  font-size: 2.2rem;
  font-weight: 600;
}
#outline .conditions li {
  position: relative;
  padding: 12px 0;
  color: #d989ac;
  text-align: start;
}
#outline .conditions li::before {
  content: '';
  position: absolute;
  width: 15px;
  height: 15px;
  left: -25%;
  top: 50%;
  transform: translate(25%, -50%);
  display: inline-block;
  background-color: #ffd400;
  border-radius: 50%;
}
#outline .conditions li::after {
  content: '';
  display: inline-block;
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 180px;
  height: 2px;
  background-color: #ffd400;
}
#outline .conditions li:nth-child(2) {
  color: #a84d56;
}
#outline .conditions li:nth-child(3) {
  color: #55aec6;
}
#outline p.important {
  font-size: 2.2rem;
  font-weight: 600;
  color: #e9e036;
  text-shadow: -1px -1px #000, 0 -1px #000, 1px -1px #000, -1px 0 #000, 0 0 #000, 1px 0 #000, -1px 1px #000, 0 1px #000, 1px 1px #000;
}

/* コピーボタン */
#insta-btn {
  margin-top: 20px;
  text-align: center;
}
#insta-btn p {
  margin-bottom: 20px;
  line-height: 1.4;
}
.copy_btn {
  position: relative;
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 15px 25px;
  font-size: 2rem;
  color: #FFF;
  background: -webkit-linear-gradient(135deg, #427eff 0%, #f13f79 70%) no-repeat;
  background: linear-gradient(135deg, #427eff 0%, #f13f79 70%) no-repeat;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
}
.copy_btn:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: -webkit-linear-gradient(15deg, #ffdb2c, rgb(249, 118, 76) 25%, rgba(255, 77, 64, 0) 50%) no-repeat;
  background: linear-gradient(15deg, #ffdb2c, rgb(249, 118, 76) 25%, rgba(255, 77, 64, 0) 50%) no-repeat;
}
.copy_btn .fa-instagram {
  position: relative;
  margin-right: 15px;
  font-size: 35px;
}
.copy_btn span {
  position: relative;
}
.copied {
  display: none;
}
.copy br {
  display: none;
}
@media screen and (max-width: 480px) {
  .copy_btn {
    font-size: 1.8rem;
    line-height: 1.4;
  }
  .copy br {
    display: block;
  }
}

.copied_btn .copied {
  display: block;
}
.copied_btn .copy {
  display: none;
}

/* about */
#about div {
  position: relative;
  background: #fff0cd;
  box-shadow: 0px 0px 0px 5px #fff0cd;
  border: dashed 2px white;
  padding: 20px;
  color: #454545;
}
#about div::after {
  position: absolute;
  content: '';
  right: -7px;
  top: -7px;
  border-width: 0 15px 15px 0;
  border-style: solid;
  border-color: #ffdb88 #fff #ffdb88;
  box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.15);
}
#about div p {
  line-height: 1.6;
}
#about div p:not(:first-child) {
  padding-top: 15px;
}
#about div .sign {
  text-align: right;
}
@media screen and (max-width: 480px) {
  #about div p {
    font-size: 1.5rem;
  }
}

/* chikutestsu */
#chikutetsu div {
  position: relative;
  background: #fff0cd;
  box-shadow: 0px 0px 0px 5px #fff0cd;
  border: dashed 2px white;
  padding: 20px;
  color: #454545;
}
#chikutetsu div::after {
  position: absolute;
  content: '';
  right: -7px;
  top: -7px;
  border-width: 0 15px 15px 0;
  border-style: solid;
  border-color: #ffdb88 #fff #ffdb88;
  box-shadow: -1px 1px 1px rgba(0, 0, 0, 0.15);
}
#chikutetsu div p {
  line-height: 2;
}
#chikutetsu div p:not(:first-child) {
  padding-top: 15px;
}
#chikutetsu div .sign {
  text-align: right;
}
#chikutetsu div.youtube {
  position: relative;
  padding-bottom: 60%;
}
#chikutetsu div.youtube iframe {
  position: absolute;
  top: 5;
  left: 5;
  width: 95%;
  height: 90%;
}
@media screen and (max-width: 480px) {
  #chikutetsu div p {
    font-size: 1.5rem;
  }
}

#chikutetsu table {
      width: 100%;
      border-collapse: collapse;
      font-family: Arial, sans-serif;
}
#chikutetsu th, #chikutetsu td {
      padding: 12px;
      border: 1px solid #ddd;
      text-align: left;
}
#chikutetsu th {
      background-color: #f4f4f4;
}
#chikutetsu tr {
      background-color: #fffde5;
}
#chikutetsu tr:hover {
      background-color: #f1f1f1;
}


/* footer */
footer {
  padding: 15px 0;
  background-color: #53aec5;
  text-align: center;
}
.copyright {
  font-size: 12px;
  color: #fff;
}


/* WORKSHOP */
#workshop a {
  display: inline-block;
  padding: 2.5px 0;
  word-break: break-all;
}

.iframe-container {
  background: transparent !important;
  box-shadow: none !important;
  border: none !important;
  padding: 56.25% 0 0 0 !important; /* アスペクト比16:9に基づく高さ (100% * 9 ÷ 16) */
  width: 100%;
}
.iframe-container::after {
  content: none !important;
}
.iframe-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
@media screen and (max-width: 480px) {
  .iframe-container {
    padding: 75% 0 0 0 !important; /* 4:3アスペクト比に変更 */
    max-width: 100%;
  }
}