#tkool3-app {
    max-width: 800px;
    margin: 0 auto;
    font-family: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
    color: #333333;
  }
  #tkool3-app .drop-zone {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    width: 100%;
    border: 3px dashed #b0bec5;
    border-radius: 12px;
    padding: 60px 20px;
    text-align: center;
    background-color: #ffffff;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-bottom: 30px;
  }
  #tkool3-app .drop-zone.is-dragover {
    border-color: #607d8b;
    background-color: #eceff1;
  }
  #tkool3-app .drop-zone p {
    font-size: 1.1rem;
    color: #607d8b;
    margin: 0;
    pointer-events: none;
  }
  #tkool3-app .file-input {
    display: none;
  }
  #tkool3-app .result-card {
    background: #ffffff;
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-left: 5px solid #ccc;
  }
  #tkool3-app .result-card.system { border-left-color: #f44336; }
  #tkool3-app .result-card.scenario { border-left-color: #4caf50; }
  
  #tkool3-app .result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
  }
  #tkool3-app .game-title {
    font-size: 1.25rem;
    font-weight: bold;
    color: #333;
  }
  #tkool3-app .badge {
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: bold;
    white-space: nowrap;
  }
  #tkool3-app .badge.system { background: #ffebee; color: #c62828; }
  #tkool3-app .badge.scenario { background: #e8f5e9; color: #2e7d32; }
  
  #tkool3-app .password-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
  }
  #tkool3-app .btn-key {
    background: #f5f5f5;
    border: 1px solid #ddd;
    border-radius: 6px;
    padding: 8px 16px;
    font-family: monospace;
    font-size: 1rem;
    font-weight: bold;
    color: #424242;
    box-shadow: 0 2px 0 #e0e0e0;
  }
  #tkool3-app .empty-text {
    color: #9e9e9e;
    font-style: italic;
  }
  #tkool3-app .filename {
    font-weight: bold;
    margin-bottom: 15px;
    color: #1976d2;
  }