*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  --black: #444444;
}

img {
  width: 100%;
}

button {
  background: none;
  color: inherit;
  border: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  outline: inherit;
}

.scroll-reveal {
  opacity: 0;
  visibility: hidden;
  transform: translateY(40px);
  transition: all 1s;
}

.scroll-reveal.is-show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0px);
}

.mincho {
  font-family: "Zen Old Mincho", serif;
}

a {
  transition: opacity 0.4s;
  text-decoration: none;
  color: var(--black);
}

a:hover {
  opacity: 0.7;
}

/* header */
.header {
  width: 100%;
  position: relative;
}

.header__nav {
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  padding: 16px;
  z-index: 1;
}

.header__nav img {
  width: 80px;
  height: auto;
}

.header__main-visual {
  position: relative;
}

.header__title {
  position: absolute;
  inset: 0;
  top: 2vw;
  margin: auto;
  display: flex;
  gap: 24px;
  flex-direction: column;
  align-items: center;
}

.header__title-main {
  width: clamp(300px, 30vw, 600px);
  height: auto;
}

.header__title-label {
  width: clamp(250px, 25vw, 400px);
  height: auto;
}

/* side menu */
.btn-menu {
  display: block;
  position: fixed;
  z-index: 2;
  right: 28px;
  top: 16px;
  width: 40px;
  height: 40px;
  cursor: pointer;
}

.btn-menu__line {
  display: block;
  position: absolute;
  width: 40px;
  border-bottom: solid 3.5px;
  border-radius: 3px;
  border-color: white;
  -webkit-transition: 0.35s ease-in-out;
  -moz-transition: 0.35s ease-in-out;
  transition: 0.35s ease-in-out;
}

.btn-menu__line:nth-child(1) {
  top: 10px;
}

.btn-menu__line:nth-child(2) {
  top: 25px;
}

.btn-menu__line:nth-child(3) {
  top: 39px;
}

.btn-menu.open .btn-menu__line:nth-child(1) {
  top: 20px;
  -webkit-transform: rotate(-45deg);
  -moz-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

.btn-menu.open .btn-menu__line:nth-child(2),
.btn-menu.open .btn-menu__line:nth-child(3) {
  top: 20px;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  transform: rotate(45deg);
}

.menu {
  height: 100vh;
  position: fixed;
  top: 0;
  right: -600px;
  background: rgba(255, 255, 255, 0.85);
  transition: 0.6s;
  z-index: 1;
}

.menu.open {
  transform: translate(-600px);
}

.menu-inner {
  display: flex;
  gap: 24px;
  flex-direction: column;
  align-items: center;
  list-style: none;
  font-family: "Zen Old Mincho", serif;
  padding: 128px 32px;
  width: clamp(300px, 45vw, 600px);
}

.menu__logo {
  width: 120px;
}

.menu__sakura {
  margin: 12px 0;
  max-width: 250px;
}

.menu__sns {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}

.menu__sns img {
  width: 32px;
}

/* main */
.section {
  max-width: 1000px;
  margin: 80px auto;
  padding: 0 16px;
}

/* lead */
.lead__img {
  display: block;
  margin: auto;
  max-width: 800px;
}

/* projects */
.project__title {
  display: block;
  margin: 24px auto 48px;
  max-width: 600px;
}

.project__link {
  display: flex;
  flex-direction: column;
  margin: 24px auto 0;
  max-width: 900px;
}

.project__link picture {
  width: 90%;
}

.project__link--left {
  align-items: flex-start;
}

.project__link--right {
  align-items: flex-end;
}

/* coming soon */
.coming-soon {
  max-width: 100%;
  padding: 0;
}

.coming-soon__title {
  padding: 24px 0;
  background-color: #fff6f7;
}

.coming-soon__title img {
  display: block;
  margin: auto;
  max-width: 600px;
}

.coming-soon__tea {
  display: block;
  margin: 24px auto 0;
  max-width: 850px;
  text-align: center;
  position: relative;
}

.reserve-button {
  margin: auto;
  max-width: 350px;
  position: relative;
  top: -70px;
  left: 4px;
}

/* footer */
footer {
  margin-top: 180px;
}

.footer__menu {
  font-family: "Zen Old Mincho", serif;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 4vw;
  list-style: none;
}

.footer__menu li:not(:last-child)::after {
  content: "";
  display: inline-block;
  height: 16px;
  border-right: 1px solid var(--black);
  padding-left: 4vw;
}

.footer__menu li a {
  font-size: 1rem;
  text-decoration: none;
  color: var(--black);
}

.footer__img {
  margin-top: -240px;
  margin-bottom: -6px;
  z-index: -1;
  position: relative;
}

@media only screen and (max-width: 640px) {
  /* header */
  header {
    overflow: hidden;
  }

  .header__nav {
    padding: 8px;
  }

  .header__nav img {
    width: 60px;
  }

  .header__title {
    top: 6vw;
    gap: 16px;
  }

  .header__title-main {
    width: clamp(200px, 60vw, 500px);
  }

  .header__title-label {
    width: clamp(200px, 25vw, 300px);
  }

  .header__bg {
    width: 125%;
  }

  /* section */
  .section {
    margin: 40px auto;
  }

  /* side menu */
  .btn-menu {
    right: 16px;
    top: 8px;
    width: 30px;
    height: 30px;
  }

  .btn-menu__line {
    width: 30px;
  }

  .btn-menu__line:nth-child(1) {
    top: 10px;
  }

  .btn-menu__line:nth-child(2) {
    top: 20px;
  }

  .btn-menu__line:nth-child(3) {
    top: 30px;
  }

  .menu-inner {
    padding: 64px 32px;
  }

  .menu__logo {
    width: 100px;
  }

  /* lead */
  .lead__img {
    position: relative;
    left: 16px;
  }

  /* project */
  .project__title {
    max-width: 320px;
  }

  .project__link {
    margin-top: 4px;
  }

  .project__link picture {
    width: 100%;
  }

  /* coming soon */
  .coming-soon__title {
    padding: 40px 16px;
  }

  .coming-soon__title img {
    max-width: 320px;
    position: relative;
    left: 12px;
  }

  .reserve-button {
    top: 0px;
    max-width: 300px;
  }

  /* footer */
  footer {
    margin-top: 60px;
  }

  .footer__menu {
    flex-direction: column;
    gap: 28px;
  }

  .footer__menu li:not(:last-child)::after {
    display: none;
  }

  .footer__img {
    margin-top: -50px;
  }
}