/* --- Body fixed when drawer open --- */
body.drawer-open {
  overflow: hidden;
}

/* --- Hamburger Menu Button --- */
.nav-menu {
  position: absolute;
  top: 18px;
  right: 23px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.hamburger {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 27px;
  height: 19px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger-line {
  position: absolute;
  display: block;
  width: 27px;
  height: 1px;
  background-color: #333;
  border-radius: 1px;
  transition: transform 0.3s, background-color 0.3s, top 0.3s;
}

.hamburger-line::before,
.hamburger-line::after {
  content: "";
  position: absolute;
  display: block;
  width: 100%;
  height: 100%;
  background-color: #333;
  border-radius: 1px;
  transition: inherit;
}

.hamburger-line::before {
  top: -8px;
}

.hamburger-line::after {
  top: 8px;
}

/* ハンバーガー → ×アニメーション */
.hamburger[aria-expanded="true"] .hamburger-line {
  background-color: transparent;
}

.hamburger[aria-expanded="true"] .hamburger-line::before,
.hamburger[aria-expanded="true"] .hamburger-line::after {
  top: 0;
  background-color: #fff;
}

.hamburger[aria-expanded="true"] + .hamburger-label {
  color: #fff;
}

.hamburger[aria-expanded="true"] .hamburger-line::before {
  transform: rotate(45deg);
}

.hamburger[aria-expanded="true"] .hamburger-line::after {
  transform: rotate(-45deg);
}

.hamburger-label {
  font-family: "Oswald", sans-serif;
  font-size: 8.8px;
  font-weight: 500;
  color: #333;
  transition: color 0.3s;
}

/* --- Drawer Menu Overlay --- */
.drawer-menu {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 99;
  width: 100%;
  height: 100%;
  min-height: 100vh;
  opacity: 0;
  visibility: hidden;
  background-color: #696969;
  padding: 80px 20px 60px;
  transition: opacity 0.3s, visibility 0.3s;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.drawer-menu::before {
  content: "MENU";
  display: block;
  text-align: center;
  color: #fff;
  font-family: "Oswald", sans-serif;
  font-size: 19.2px;
  font-weight: 300;
  margin-bottom: 16px;
}

.drawer-menu[data-expanded="true"] {
  visibility: visible;
  opacity: 1;
  overflow-y: auto;
}

.drawer-menu-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 48px;
  width: 100%;
  max-width: 335px;
  margin: 0 auto;
  border-top: 1px solid #fff;
  border-bottom: 1px solid #fff;
  padding: 48px 0;
}

.drawer-menu-list li a {
  color: #fff;
  font-size: 16px;
  text-decoration: none;
  display: block;
  transition: opacity 0.2s;
}

.drawer-menu-list li a:hover {
  opacity: 0.7;
}

/* --- SP: 750px以下では元々のヘッダー内ハンバーガーメニューを使用 --- */
@media (max-width: 750px) {
  .nav-menu {
    display: none;
  }
  .drawer-menu#top-drawer-menu {
    display: none;
  }
}