:root {
    --bg: #f4f6fb;
    --card: #ffffff;
    --accent: #4b7bec;
    --muted: #666;
  }
  * { box-sizing: border-box; }
  body {
    margin: 0;
    font-family: "Segoe UI", Roboto, "Noto Sans KR", sans-serif;
    background: var(--bg);
    color: #222;
  }
  .container {
    max-width: 960px;
    margin: 32px auto;
    padding: 20px;
    background: var(--card);
    border-radius: 12px;
    box-shadow: 0 6px 20px rgba(20,20,40,0.06);
  }
  h1, h2 { margin: 0 0 12px; }
  #score { margin-bottom: 12px; font-weight: 600; }
  
  #start-page h2 {
      margin-bottom: 20px;
  }
  #criteria-list {
      list-style-type: '✔  ';
      padding-left: 20px;
      line-height: 1.8;
  }
  #start-btn {
      display: block;
      width: 100%;
      padding: 15px;
      font-size: 18px;
      margin-top: 20px;
      background-color: var(--accent);
      color: white;
      border: none;
      border-radius: 8px;
      cursor: pointer;
  }
  
  #quiz-area {
    display: flex;
    gap: 20px;
  }
  .main-content {
    flex: 3;
  }
  .sidebar {
    flex: 2;
    background: #f7f9ff;
    padding: 15px;
    border-radius: 8px;
  }
  .sidebar h3 {
      margin-top: 0;
  }
  #criteria-sidebar-list {
      list-style-type: '👉 ';
      padding-left: 20px;
      margin: 0;
  }
  #criteria-sidebar-list li {
      margin-bottom: 12px;
      line-height: 1.5;
  }
  
  .text-content-wrap {
    position: relative;
    width: 100%;
    min-height: 400px;
    padding: 20px;
    background: #f0f0f0;
    border-radius: 8px;
    line-height: 1.7;
    white-space: pre-wrap; /* 줄바꿈과 공백을 유지 */
  }
  
  #quiz-content {
      margin: 0;
  }
  
  .btn-row {
    margin: 12px 0;
    display:flex;
    gap: 10px;
  }
  .choice-btn {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    border: none;
    font-size: 16px;
    cursor: pointer;
    background: var(--accent);
    color: white;
    transition: background-color 0.2s;
  }
  .choice-btn:disabled {
      background-color: #ccc;
      cursor: not-allowed;
  }
  #fake-btn { background: #ff4757; }
  .hidden { display: none !important; }
  #feedback { margin-top: 14px; padding: 12px; border-radius: 8px; background:#f7f9ff; }
  #final-area { text-align: center; }