@charset "UTF-8";

/* ハンバーガーメニューのスタイル */
/* PC表示では非表示 */
.hamburger-btn,
.mobile-menu {
  display: none;
}

@media screen and (max-width: 768px) {
  /* ハンバーガーボタン */
  .hamburger-btn {
    display: block;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 60;
    padding: 10px;
  }

  .hamburger-line {
    display: block;
    width: 25px;
    height: 3px;
    background-color: white;
    margin: 5px 0;
    transition: 0.3s;
  }

  /* モバイルメニューコンテナ */
  .mobile-menu {
    display: block;
    position: fixed;
    top: 0;
    right: -100%; /* 初期状態は画面外 */
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: #0B1120; /* navy-900 */
    color: white;
    z-index: 70;
    transition: right 0.4s ease-in-out;
    box-shadow: -5px 0 15px rgba(0,0,0,0.5);
    padding: 60px 20px;
    overflow-y: auto;
  }

  .mobile-menu.active {
    right: 0; /* 画面内に表示 */
  }

  /* 閉じるボタン */
  .close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    background: transparent;
    border: none;
    color: white;
    font-size: 2rem;
    cursor: pointer;
  }

  /* メニューリスト */
  .mobile-menu ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .mobile-menu li {
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 10px;
  }

  .mobile-menu a {
    text-decoration: none;
    color: white;
    font-size: 1.1rem;
    font-weight: bold;
    display: block;
    transition: color 0.3s;
  }

  .mobile-menu a:hover {
    color: #3B82F6; /* blue-500 */
  }

  /* 背景オーバーレイ */
  .menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 55;
    opacity: 0;
    visibility: hidden;
    transition: opactiy 0.4s, visibility 0.4s;
  }

  .menu-overlay.active {
    opacity: 1;
    visibility: visible;
  }
}