@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+JP&family=Noto+Serif+JP&display=swap");
body,
html {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

.header {
  z-index: 20;
  position: fixed;
  width: 100vw;
  height: 110px;
  border-bottom: 1px solid #e6e6e6;
  -webkit-backdrop-filter: blur(15px);
          backdrop-filter: blur(15px);
  background-color: rgba(255, 255, 255, 0.535);
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-right-color: rgba(255, 255, 255, 0.2);
  border-bottom-color: rgba(255, 255, 255, 0.2);
}
.header .title-area {
  display: flex;
  align-items: center;
  flex-direction: column;
}
.header .title-area .title {
  cursor: pointer;
  -webkit-user-select: none;
     -moz-user-select: none;
          user-select: none;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin-top: 40px;
  text-align: center;
  font-family: "Noto Serif JP", serif;
  width: 250px;
  color: #000000;
  animation: fadeIn 0.4s ease forwards;
}
@media (max-width: 599px) {
  .header .title-area .title {
    font-size: 25px;
  }
}
@media (min-width: 600px) {
  .header .title-area .title {
    font-size: 30px;
  }
}
.header .title-area .title::after {
  content: "";
  display: block;
  width: 0%;
  height: 1px;
  background-color: #4f4e4e;
  margin-top: 10px;
  animation: moveTitleLine 0.5s ease-in-out forwards;
  animation-delay: 0.3s;
}

.active nav {
  box-shadow: 2px 3px 4px rgb(138, 137, 137);
  opacity: 1;
  top: 0;
}
.active nav span:nth-child(1) {
  transform: translateY(10px) rotate(-315deg);
}
.active nav span:nth-child(2) {
  opacity: 0;
}
.active nav span:nth-child(3) {
  transform: translateY(-10px) rotate(315deg);
}

.hamburger-menu {
  cursor: pointer;
  opacity: 1;
  animation-delay: 0.5s;
  overflow: hidden;
  display: block;
  position: absolute;
  top: 50px;
  right: 50px;
  width: 30px;
  height: 30px;
  z-index: 9999;
}
@media (max-width: 599px) {
  .hamburger-menu {
    top: 40px;
    right: 20px;
  }
}
@keyframes slideInX {
  0% {
    transform: translateX(-30px);
    opacity: 0;
  }
  100% {
    transform: translateX(0px);
    opacity: 1;
  }
}
.hamburger-menu span {
  position: absolute;
  display: block;
  left: 0;
  width: 30px;
  height: 2px;
  background-color: rgb(44, 38, 38);
  transition: all 0.5s;
  border-radius: 4px;
}
.hamburger-menu span:nth-child(1) {
  top: 4px;
}
.hamburger-menu span:nth-child(2) {
  top: 14px;
}
.hamburger-menu span:nth-child(3) {
  bottom: 4px;
}

#menu-area {
  display: none;
  background-color: rgba(240, 240, 240, 0.924);
  overflow: scroll;
  z-index: 20;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  height: 0vh;
  width: 100vw;
  -webkit-user-select: none;
     -moz-user-select: none;
          user-select: none;
}
#menu-area.active {
  display: block;
  animation: menuIn 0.5s ease-in-out forwards;
}
#menu-area.active .menu-item {
  animation-delay: 0.3s;
}
#menu-area.active .menu-item:nth-child(1) {
  animation-delay: 0.3s;
  animation: menuItemFadeIn 0.6s ease-in-out forwards;
}
#menu-area.active .menu-item:nth-child(2) {
  animation-delay: 0.5s;
  animation: menuItemFadeIn 0.65s ease-in-out forwards;
}
#menu-area.active .menu-item:nth-child(3) {
  animation-delay: 0.7s;
  animation: menuItemFadeIn 0.7s ease-in-out forwards;
}
#menu-area.active .menu-item:nth-child(4) {
  animation-delay: 0.9s;
  animation: menuItemFadeIn 0.8s ease-in-out forwards;
}
#menu-area.active .menu-item:nth-child(5) {
  animation-delay: 1.1s;
  animation: menuItemFadeIn 0.9s ease-in-out forwards;
}
#menu-area.active .menu-item:nth-child(6) {
  animation-delay: 1.3s;
  animation: menuItemFadeIn 1s ease-in-out forwards;
}
#menu-area.active.inactive {
  animation: menuOut 0.3s ease-in-out forwards;
}
#menu-area.active .menu-contents {
  display: flex;
  align-items: center;
  flex-direction: column;
  padding: 0;
  height: auto;
  min-height: calc(100% - 110px);
}
@media (max-width: 599px) {
  #menu-area.active .menu-contents {
    margin-top: 50px;
  }
}
@media (min-width: 600px) {
  #menu-area.active .menu-contents {
    margin-top: 130px;
  }
}
#menu-area.active a {
  text-decoration: none;
  color: #4f4e4e;
}
#menu-area.active .menu-item {
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 30vw;
  height: 50px;
  margin: 15px 0;
  list-style: none;
  border: 1px solid #4f4e4e;
  padding: 10px 15px;
  font-size: 20px;
  font-family: "Noto Serif JP", serif;
  border-radius: 8px;
  background-color: rgba(255, 255, 255, 0.808);
  -webkit-backdrop-filter: blur(10px);
          backdrop-filter: blur(10px);
}
#menu-area.active .menu-item:hover {
  background-color: #4f4e4e;
  color: #fff;
}

#top-scroll-button {
  color: white;
  text-decoration: none;
  position: fixed;
  bottom: 50px;
  right: 50px;
  width: 2px;
  height: 80px;
  border-radius: 50%;
  background-color: #4f4e4e;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  z-index: 9999;
  opacity: 0;
}
@media (max-width: 599px) {
  #top-scroll-button {
    bottom: 10px;
    right: 10px;
  }
}

.scrolled {
  transform: translateY(-150px);
  width: 2px;
  animation: TopScrollButtonFadeIn 0.4s ease forwards;
}

@keyframes TopScrollButtonFadeIn {
  0% {
    opacity: 0;
    width: 2px;
    transform: translateY(-150px);
  }
  100% {
    opacity: 1;
    width: 80px;
    transform: translateY(0px);
  }
}
@keyframes fadeIn {
  0% {
    transform: translateY(10px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}
@keyframes menuItemFadeIn {
  0% {
    transform: translateY(20px);
    opacity: 0;
  }
  100% {
    transform: translateY(0);
    opacity: 1;
  }
}
@keyframes fadeOut {
  0% {
    opacity: 1;
    z-index: 999;
  }
  100% {
    opacity: 0;
    z-index: -1;
  }
}
@keyframes moveTitleLine {
  0% {
    width: 0;
  }
  100% {
    width: 100%;
  }
}
@keyframes menuIn {
  0% {
    height: 0;
    opacity: 0;
  }
  100% {
    height: 100vh;
    opacity: 1;
  }
}
@keyframes menuOut {
  0% {
    height: 100vh;
    opacity: 1;
  }
  100% {
    opacity: 0;
    height: 0;
  }
}/*# sourceMappingURL=common.css.map */