@charset "UTF-8";
/* ==========common========== */
html {
  font-size: 62.5%;
}

body {
  font-family: "Shippori Mincho","Cormorant Garamond",serif;
  font-style: normal;
  color: #4b4b4b;
  line-height: 1.5;
}

.header--hidden {
  transform: translateY(-100%);
}

/* --- ページ全体フェードイン --- */
#container {
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
}

#container.visible {
  opacity: 1;
}

/* ===== ふわっとフェードイン ===== */
.fadein {
  opacity: 0;
}

.fadein.show {
  animation: fadeAppear 1.5s forwards;
}

/* その場でふわっと出るアニメーション */
@keyframes fadeAppear {
  0% {
    opacity: 0;
  }
  100% {
    opacity: 1;
  }
}

/* ==========Header========== */
.header {
  padding: 16px 0;
  display: flex;
  justify-content: center;
  position: fixed;
  width: 100%;
  top: 0;
  left: 0;
  background-color: rgb(255, 255, 255);
  backdrop-filter: blur(14px);
  z-index: 1000;
  transition: transform 0.4s ease;
} 

.header__topic {
  font-size: 2rem;
  text-transform: uppercase;
}

.header__instagram {
  position: fixed;
  top: 16px;
  right: 3.2%;
}

.header__instagram img {
  width: 32px;
}

/*============
nav
=============*/
.nav {
  background-color: #ffffff;
  background-size: cover;
  width: 23%;
  height: 100dvh;
  position: fixed;
  top: 0;
  left: 0;
  transform: translateX(-100%);
  transition: 0.3s;
  z-index: 100;
}

.nav.active {
  transform: translateX(0);
}

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100dvh;
  background-color: rgba(0, 0, 0, 0.9);
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
  z-index: 50;
}

/* nav がアクティブなときに表示 */
.nav.active ~ .overlay {
  opacity: 1;
  visibility: visible;
}
.nav__header {
  margin-top: 70px;
}
.inner__topic {
  display: block;
  width: 130px;
  margin: 0 auto;
}
.inner {
  padding: 0 24px;
  margin-top: 40px;
}
.innser__list-item {
  font-size: 1.6rem;
  border-bottom: 1px solid #898989;
  padding: 16px 16px;
}
.innser__list-item a {
  transition: 0.4s;
}
.innser__list-item:hover {
  color: rgba(42, 42, 42, 0.5);
}
.innser__list-item:first-of-type {
  border-top: 1px solid #898989;
}
 .inner__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  border: 1px solid #4b4b4b;
  border-radius: 50px;
  width: 100%;
  height: 42px;
  margin-top: 8px;
  line-height: 1;
 }
.inner__btn:hover {
  opacity: 0.6;
}
.inner__btn span img {
  width: 14px;
  height: 14px;
}
.inner__btn span {
  margin-left: 10px;
  vertical-align: 4px;
}
.base {
  margin-top: 24px;
}
.inner__sns {
  display: flex;
  gap: 16px;
  margin-top: 30px;
}
.inner__sns-item img{
  width: 25px;
  height: 25px;
}

/*============
@keyframes
=============*/
@keyframes equalizer01 {
  0% {
    width: 70%;
  }
  10% {
    width: 50%;
  }
  20% {
    width: 100%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 50%;
  }
  50% {
    width: 70%;
  }
  60% {
    width: 50%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 100%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 70%;
  }
}
@keyframes equalizer02 {
  0% {
    width: 30%;
  }
  10% {
    width: 20%;
  }
  20% {
    width: 40%;
  }
  30% {
    width: 10%;
  }
  40% {
    width: 20%;
  }
  50% {
    width: 30%;
  }
  60% {
    width: 20%;
  }
  70% {
    width: 10%;
  }
  80% {
    width: 40%;
  }
  90% {
    width: 10%;
  }
  100% {
    width: 30%;
  }
}
/*============
.toggle_btn
=============*/
.toggle_btn {
  display: block;
  position: fixed;
  top: 16px;
  left: 3.2%;
  width: 60px;
  height: 30px;
  transition: all 0.4s;
  cursor: pointer;
}
.toggle_btn span {
  display: block;
  position: absolute;
  left: 0;
  width: 30px;
  height: 1.5px;
  background-color: #4b4b4b;
  transition: all 0.5s;
}
.toggle_btn span:nth-child(1) {
  top: 5px;
  width: 60px;
  animation: equalizer01 8000ms infinite;
}
.toggle_btn span:nth-child(2) {
  top: 15px;
  width: 30px;
  animation: equalizer02 6000ms infinite;
  animation-delay: 0.33s;
}
.toggle_btn span:nth-child(3) {
  top: 25px;
  width: 20px;
  animation: equalizer02 6000ms infinite;
}
/* 959px以下に適用されるCSS（タブレット用） */
@media screen and (max-width: 959px) {
  .header__topic {
    font-size: 1.8rem;
  }
  .header__instagram img {
    width: 28px;
  }
  .inner__topic {
    width: 100px;
  }
  .nav {
    width: 35%;
  }
  .innser__list-item {
    font-size: 1.4rem;
    padding: 16px 20px;
  }
  .inner__btn {
    font-size: 1.4rem;
    padding: 8px 0 10px;
  }
  .inner__btn span img {
    width: 13px;
    height: 13px;
  }
  .inner__sns {
    gap: 16px;
  }
  .inner__sns-item img {
    width: 22px;
    height: 22px;
  }
}
/* 480px以下に適用されるCSS（スマホ用） */
@media screen and (max-width: 480px) {
  .inner__topic {
    width: 120px;
  }
  .nav {
    width: 62%;
  }
  .nav__header{
    margin-top: 50px;
  }
  .innser__list-item {
    font-size: 1.6rem;
    padding: 16px 20px;
  }
  .inner__btn {
    font-size: 1.4rem;
    margin-top: 8px;
    /* padding: 8px 0 10px; */
  }
  .inner__btn span img {
    width: 13px;
    height: 13px;
  }
  .inner__sns {
    gap: 14px;
  }
  .inner__sns-item img{
    width: 22px;
    height: 22px;
  }
}

/* ==========Footer========== */
.footer {
  background-color: rgb(22, 22, 22);
  color: #ffffff;
}
.footer-content {
  padding: 3.2%;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer__list {
  display: flex;
  gap: 24px;
  font-size: 1.4rem;
}
.footer__sns {
  display: flex;
  justify-content: end;
  gap: 18px;
  margin-top: 18px;
}
.footer__sns-item img {
  width: 22px;
  height: 22px;
}
.footer__topic img {
  display: block;
  width: 150px;
}
.copy {
  font-size: 1.2rem;
  color: #ffffff;
  background-color: rgb(38, 38, 38);
  text-align: center;
  padding: 4px 0;
}
/* 959px以下に適用されるCSS（タブレット用） */
@media screen and (max-width: 959px) {
  .footer-content {
    padding: 3.2%;
  }
  .footer__topic img {
    width: 125px;
  }
}
/* 480px以下に適用されるCSS（スマホ用） */
@media screen and (max-width: 480px) {
.footer-content {
  padding: 28px 3.2%;
  display: block;
}
.footer__list {
  display: block;
  font-size: 1.4rem;
  margin-top: 24px;
}
.footer__sns {
  display: flex;
  gap: 20px;
  margin-top: 24px;
  justify-content: center;
}
.footer__item {
  text-align: center;
  margin-bottom: 12px;
}
.footer__sns-item img {
  width: 19px;
  height: 19px;
}
.footer__topic img {
  display: block;
  width: 110px;
  margin: 0 auto;
}
}