/* <div id="header-container"></div>で、header-template-script.jsと一緒に使う */

  .app-header {
    width: 100%;
    height: auto;
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    justify-content: space-between;
    align-items: center; /* 子要素を上下中央に配置 */
    overflow: visible;
    border-bottom: 1px solid black;
  }
  
  .app-header-left-container {
    display: inline-flex;
    flex-direction: column;
    min-width: 0;
  }
  
  .app-header-left-mini-container {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    align-items: center;
    gap: 10px;
  }
  
  .app-header-title {
    font-size: 1.4rem;
    font-weight: bold;
    margin: 4px 0;
    white-space: nowrap;
  }
  
  .app-header-user-info-container {
    position: relative;
    display: inline-flex;
    flex-direction: row;
    flex-wrap: nowrap;
    flex-shrink: 0;
    align-items: center;
    white-space: nowrap;
    
    margin-left: auto;
    margin-right: 5px;
    
    padding: 3px 8px;
  }
  
  .app-header-user-name-div {
    border-bottom: 2px solid rgb(150, 150, 255);
    min-height: 0;
    margin: auto 10px auto 5px;
    white-space: nowrap;
    cursor: pointer;
  }
  
  .app-header-user-photo-img {
    border-radius: 50%;
    background: rgb(150, 150, 150);
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    cursor: pointer;
  }
  
  .app-header-user-info-dropdown-container {
    position: absolute;
    right: 0px;
    bottom: -2px;
    transform: translate(0, 100%);
    z-index: 500;
    min-width: 150px;
    min-height: 100px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 2px 2px 6px rgba(0, 0, 0, 0.3);
    display: none;
    flex-direction: column;
  }
  
  .app-header-user-info-dropdown-container.show {
    display: flex;
  }
  
  .app-header-sign-out-btn {
    font-weight: bold;
    color: rgb(200, 0, 0);
  }
  
  .app-header button {
    cursor: pointer;
    padding: 4px 8px;
    background: white;
    margin: 4px;
    border: none;
    box-shadow: 3px 3px 3px #000;
  }
  
  .app-header button:focus,
  .app-header button:active {
    box-shadow: 1px 1px 2px rgba(0, 0, 0, 0.2);
    transform: translate(1px, 1px);
  }
  
  .app-header button:disabled {
    opacity: 0.5;
    cursor: default;
    box-shadow: none;
  }
  
  /* ===== ステータス表示 ===== */
  .app-header-drive-status {
    margin: 4px 8px;
    font-size: 0.8rem;
    font-weight: bold;
  }
  
  .app-header-drive-status[data-kind="progress"] {
    color: #555;
  }
  
  .app-header-drive-status[data-kind="progress"]::before {
    content: "⏳ ";
  }
  
  .app-header-drive-status[data-kind="success"] {
    color: rgb(0, 140, 0);
  }
  
  .app-header-drive-status[data-kind="success"]::before {
    content: "✓ ";
  }
  
  .app-header-drive-status[data-kind="error"] {
    color: rgb(200, 0, 0);
  }
  
  .app-header-drive-status[data-kind="error"]::before {
    content: "✗ ";
  }