.bc-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.75);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    font-family: inherit;
  }
  .bc-modal-content {
    background: #1e1e2f;
    color: #f5f5f7;
    width: 90%;
    max-width: 600px;
    padding: 30px;
    border-radius: 16px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    box-sizing: border-box;
    max-height: 90vh;
    overflow-y: auto;
  }
  .bc-close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    background: none;
    border: none;
    font-size: 28px;
    color: #aaa;
    cursor: pointer;
  }
  .bc-close-btn:hover { color: #fff; }
  .bc-game-header h2 { margin-top: 0; color: #ffd700; text-align: center; }
  .bc-game-header p { text-align: center; font-size: 14px; color: #ccc; }
  #bc-score-board { text-align: center; font-weight: bold; margin-bottom: 15px; color: #4cd137; }
  
  #bc-sortable-list {
    list-style: none;
    padding: 0;
    margin: 0 0 20px 0;
  }
  .bc-card-item {
    background: #2f2f45;
    border: 2px solid #44446b;
    padding: 12px 15px;
    margin-bottom: 10px;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: grab;
    transition: background 0.2s, border-color 0.2s;
  }
  .bc-card-item:active { cursor: grabbing; }
  .bc-card-item.correct { border-color: #4cd137; background: rgba(76, 209, 55, 0.15); }
  .bc-card-item.incorrect { border-color: #e84118; background: rgba(232, 65, 24, 0.15); }
  
  .bc-card-info h4 { margin: 0 0 4px 0; font-size: 15px; color: #fff; }
  .bc-card-info p { margin: 0; font-size: 12px; color: #aaa; }
  
  .bc-card-controls { display: flex; gap: 5px; }
  .bc-card-controls button {
    background: #44446b;
    border: none;
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
  }
  .bc-card-controls button:hover { background: #5d5d8f; }

  .bc-game-footer { display: flex; justify-content: center; }
  .bc-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: opacity 0.2s;
  }
  .bc-btn-primary { background: var(--red); color: #fff; }
  .bc-btn-secondary { background: #ff9f43; color: #fff; }
  .bc-btn:hover { opacity: 0.9; background: var(--red-soft); }
  .bc-feedback { text-align: center; margin-top: 15px; font-weight: bold; font-size: 15px; }