/* --------------------
   ハンバーガーメニュー
-------------------- */

.hamburger-menu {
  /*PCでは非表示*/
  display: none;
  position: absolute;
  /* 右端に配置（ロゴと被せない）*/
  right: 20px;
  top: 35%;
  transform: translateY (-50%);
  z-index: 1000;
}

/* チェックボックスを隠す */
#menu-toggle {
  display: none;
}

/* ☰ボタン */
.menu-icon {
  width: 32px;
  height: 24px;
  position: relative;
  cursor: pointer;
  display: block;
  z-index: 1001;
}

/* 3本線 */
.menu-icon span {
  position: absolute;
  width: 100%;
  height: 3px;
  background: #e6ebac;
  border-radius: 2px;
  transition: all 0.3s ease;
}

.menu-icon span:nth-child(1) {
  top: 0;
}

.menu-icon span:nth-child(2) {
  top: 10px;
}

.menu-icon span:nth-child(3) {
  top: 20px;
}

/* ☰ → × */
#menu-toggle:checked + .menu-icon span:nth-child(1) {
  top: 10px;
  transform: rotate(45deg);
}

#menu-toggle:checked + .menu-icon span:nth-child(2) {
  opacity: 0;
}

#menu-toggle:checked + .menu-icon span:nth-child(3) {
  top: 10px;
  transform: rotate(-45deg);
}

/* --------------------
   メニュー本体
-------------------- */

.menu {
  position: absolute;
  top: 50px;
  right: 0;
  width: 220px;
  background: #088648;
  border-radius: 10px;
  overflow: hidden;

  opacity: 0;
  visibility: hidden;
  transform: translateY(-20px);

  transition:
    opacity 0.3s ease,
    transform 0.3s ease,
    visibility 0.3s;
}

/* メニューを開く */
#menu-toggle:checked ~ .menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

/* --------------------
   メニュー項目
-------------------- */

.menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.menu-list li {
  opacity: 0;
  transform: translateY(-10px);
  transition:
    opacity 0.3s ease,
    transform 0.3s ease;
}

.menu-list li a {
  display: block;
  padding: 15px 20px;
  text-decoration: none;
  color: #e6ebac;
  border-bottom: 1px solid rgba(255,255,255,0.2);
}

/* 順番に表示 */
#menu-toggle:checked ~ .menu .menu-list li {
  opacity: 1;
  transform: translateY(0);
}

.menu-list li:nth-child(1) {
  transition-delay: 0.05s;
}

.menu-list li:nth-child(2) {
  transition-delay: 0.10s;
}

.menu-list li:nth-child(3) {
  transition-delay: 0.15s;
}

.menu-list li:nth-child(4) {
  transition-delay: 0.20s;
}

.menu-list li:nth-child(5) {
  transition-delay: 0.25s;
}

/* --------------------
   レスポンシブ
-------------------- */

@media (max-width: 768px) {
  nav {
    display: none;
  }

  .hamburger-menu {
    display: block;
  }
}