header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1;
  }
header .pc-logo {
  /* position: fixed; */
}
header .pc-logo.top {
  transform: translateY(-200%);
  transition: transform 0.3s ease-in-out;
}
header.active .pc-logo.top {
  transform: translate(0);
}
header nav {
  margin: 0 auto;
  padding: 0.3rem;
  transition: padding 0.3s ease-in-out;
}
header.active nav {
  padding-top: 0.16rem;
}
header ul {
  display: flex;
  justify-content: end;
  align-items: center;
  grid-gap: 0.2rem;
}
header li {
  font-size: 0.17rem;
}
header a {
  letter-spacing: 0.08em;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
}
header .price a {
  color: var(--color-black);
  font-weight: 600;
}

header .button a {
  border-radius: 2em;
  width: 1.60rem;
  height: 0.4rem;
  text-align: center;
  font-weight: 600;
}

header .entry a {
  background-color: var(--color-navy);  
  color: var(--color-white);
}

header .login a {
  background-color: var(--color-gray);
  color: var(--color-black);
}

header .text a {
  color: var(--color-black);
}

/* Desktop: ヘッダー本体は fixed のため、PC ロゴを再度 fixed にしない（下層でロゴとボタンの基準がずれるのを防ぐ） */
@media screen and (min-width: 769px) {
  header nav[data-pc] {
    display: flex;
    align-items: center;
  }
  body[data-page="top"] header nav[data-pc] {
    /* justify-content: flex-end; */
    justify-content: space-between;
  }
  body[data-page="inner"] header nav[data-pc] {
    justify-content: space-between;
  }
  body[data-page="inner"] header .pc-logo {
    position: relative;
    flex-shrink: 0;
  }
}

@media screen and (max-width: 768px) {
  header {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 6;
    width: 100%;
    /* transition: backgrond-color 0.3s; */
  }
  header.active nav {
    padding-top: 0.1rem;
  }
  header::before {
    content: '';
    display: block;
    background-color: #fff;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    transform: translateY(0);
    /* transition: transform 0.3s ease-in-out; */
  }

  header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.1rem;
  }

  header li {
    line-height: 1;
  }

  header .button a {
    font-size: 0.13rem;
    font-weight: 500;
    width: auto;
  }
  header .login a {
    background-color: transparent;
  }
  header .entry a { 
    padding: 0.08rem 0.2rem;
    box-sizing: border-box;
    height: auto;
  }
    
  header .logo {
    transform: translateY(0);
    /* transition: transform 0.3s ease-in-out; */
  }
  header .logo img {
    width: auto;
    height: 0.18rem;
  }
  header button {
    background-color: transparent;
    border: none;
    cursor: pointer;
    outline: none;
    padding: 0;
    appearance: none;
    width: 27px;
    height: 27px;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    align-items: center;
  }
  header button span {
    width: 100%;
    height: 2px;
    background-color: #444444;
    display: block;
    border-radius: 5px;
    position: relative;
    transition: background-color 0.3s ease;
  }
  header button span::before, header button span::after {
    content: '';
    display: block;
    width: 100%;
    height: 2px;
    background-color: #444444;
    border-radius: 5px;
    position: absolute;
    -webkit-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    transition: all 0.3s ease;
  }
  header button span::before {
    top: -8px;
  }
  header button span::after {
    top: 8px;
  }
  header button.active span {
   background-color: transparent;
  }
  header button.active span::before {
   -webkit-transform: rotate(45deg);
       -ms-transform: rotate(45deg);
           transform: rotate(45deg);
   top: 0;
  }
  header button.active span::after {
    -webkit-transform: rotate(-45deg);
        -ms-transform: rotate(-45deg);
            transform: rotate(-45deg);
    top: 0;
  }
  header.active::before {
    -webkit-transform: translateY(0);
        -ms-transform: translateY(0);
            transform: translateY(0);
  }

  .drawer {
    position: fixed;
    top: 0.4rem;
    right: 0;
    z-index: 11;
    -webkit-transform: translateX(100%);
        -ms-transform: translateX(100%);
            transform: translateX(100%);
    -webkit-transition: -webkit-transform 0.5s ease 0s;
    transition: -webkit-transform 0.5s ease 0s;
    -o-transition: transform 0.5s ease 0s;
    transition: transform 0.5s ease 0s;
    transition: transform 0.5s ease 0s, -webkit-transform 0.5s ease 0s;
    height: 100vh;
    background-color: #fff;
  }
  .drawer.active {
    -webkit-transform: translateX(0);
        -ms-transform: translateX(0);
            transform: translateX(0);
  }
  .drawer .navigation {
    background-color: #fff;
    padding: 0.9rem 0.55rem 0.48rem;
  }
  .drawer .navigation li {
    text-align: center;
  }
  .drawer .navigation li a {
    color: #111111;
  }
  .drawer .navigation .auth-controls {
    margin-bottom: 0.2rem;
  }
  .drawer .navigation .auth-controls a {
    width: 2.65rem;
    height: 0.5rem;
    display: -webkit-box;
    display: -ms-flexbox;
    display: flex;
    -webkit-box-pack: center;
        -ms-flex-pack: center;
            justify-content: center;
    -webkit-box-align: center;
        -ms-flex-align: center;
            align-items: center;
    border-radius: 2em;
  }
  .drawer .navigation .entry a {
    background-color: var(--color-navy);
    color: #fff;
  }
  .drawer .navigation .login a {
    background-color: #fff;
    border: 1px solid var(--color-navy);
    color: var(--color-navy);
    -webkit-box-sizing: border-box;
            box-sizing: border-box;
  }
  .drawer .navigation .login + li {
    margin-top: 0.3rem;
  }
  .drawer .links {
    text-align: center;
    background-color: #f9f8f5;
    padding: 0.3rem;
    height: 100vh;
  }
  .drawer .links li a {
    font-size: 0.13rem;
    color: #696A6D;
  }
}

@media (hover: hover) {
  a:hover {
    opacity: 0.7;
  }
  .price a:hover {
    letter-spacing: 0.1em;
    transform-origin: center center;
  }
}