/* Genel Stil Ayarları */
body {
    background-color: #1e1e1e;
    color: #ffffff;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
  }
  
  #app {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
  }
  
  header, footer {
    text-align: center;
    margin-bottom: 20px;
  }
  
  footer {
    margin-top: 40px;
    font-size: 14px;
    color: #888;
  }
  
  footer p {
    margin: 0;
  }
  
  h1, h2 {
    color: #00adb5;
  }
  
  .setting-group {
    margin-bottom: 25px;
  }
  
  .setting-group label {
    display: block;
    margin: 5px 0;
  }
  
  .checkbox-group, .radio-group {
    display: flex;
    flex-wrap: wrap;
  }
  
  .checkbox-group label, .radio-group label {
    margin-right: 15px;
  }
  
  input[type="number"] {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    background-color: #2e2e2e;
    border: 1px solid #444;
    color: #fff;
  }
  
  .action-buttons {
    margin-top: 20px;
    display: flex;
    flex-wrap: wrap;
  }
  
  .action-buttons button {
    margin-right: 10px;
    margin-bottom: 10px;
  }
  
  button {
    background-color: #00adb5;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
  }
  
  button:hover {
    background-color: #009ba3;
  }
  
  button:disabled,
  button.disabled {
    background-color: #555;
    cursor: not-allowed;
  }
  
  .hidden {
    display: none;
  }
  
  .options {
    margin-top: 20px;
  }
  
  .options button {
    background-color: #393e46;
    color: #eeeeee;
    border: none;
    padding: 10px 20px;
    margin-right: 10px;
    margin-bottom: 10px;
    cursor: pointer;
  }
  
  .options button:hover {
    background-color: #4e555b;
  }
  
  .options button.selected {
    background-color: #00adb5;
    color: #ffffff;
  }
  
  .options button.disabled {
    background-color: #555;
    cursor: not-allowed;
  }
  
  .review-question, .mistake {
    background-color: #2e2e2e;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 5px;
  }
  
  .review-question p, .mistake p {
    margin: 5px 0;
  }
  
  #return-main {
    margin-bottom: 15px;
  }
  
  #notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #00adb5;
    color: #ffffff;
    padding: 15px;
    border-radius: 5px;
    z-index: 1000;
  }
  
  #notification.hide {
    display: none;
  }
  
  .quiz-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
  }
  
  .quiz-header div {
    display: flex;
    flex-wrap: wrap;
    margin-top: 10px;
  }
  
  .quiz-header .custom-checkbox {
    margin-right: 15px;
  }
  
  .quiz-navigation {
    margin-top: 15px;
  }
  
  .quiz-navigation button {
    margin-right: 10px;
    margin-bottom: 10px;
  }
  
  .feedback-message {
    margin-top: 15px;
    font-size: 18px;
    font-weight: bold;
  }
  
  .feedback-correct {
    color: #28a745;
  }
  
  .feedback-incorrect {
    color: #dc3545;
  }
  
  /* Özel Checkbox ve Radio Butonlar */
  .custom-checkbox, .custom-radio {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    cursor: pointer;
    user-select: none;
  }
  
  .custom-checkbox input, .custom-radio input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
  }
  
  .checkmark, .radiomark {
    position: absolute;
    top: 0;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: #2e2e2e;
    border: 1px solid #555;
    border-radius: 4px;
  }
  
  .custom-radio .radiomark {
    border-radius: 50%;
  }
  
  .custom-checkbox:hover input ~ .checkmark,
  .custom-radio:hover input ~ .radiomark {
    background-color: #3e3e3e;
  }
  
  .custom-checkbox input:checked ~ .checkmark {
    background-color: #00adb5;
    border: none;
  }
  
  .custom-radio input:checked ~ .radiomark {
    background-color: #00adb5;
    border: none;
  }
  
  .checkmark:after, .radiomark:after {
    content: "";
    position: absolute;
    display: none;
  }
  
  .custom-checkbox input:checked ~ .checkmark:after {
    display: block;
  }
  
  .custom-checkbox .checkmark:after {
    left: 5px;
    top: 1px;
    width: 5px;
    height: 10px;
    border: solid #ffffff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
  }
  
  .custom-radio input:checked ~ .radiomark:after {
    display: block;
  }
  
  .custom-radio .radiomark:after {
    top: 4px;
    left: 4px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
  }
  
  /* Cevap Geçmişi Stil Ayarları */
  .history-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
  }
  
  .history-section {
    width: 48%;
    background-color: #2e2e2e;
    padding: 15px;
    margin-bottom: 10px;
    border-radius: 5px;
  }
  
  .history-section h3 {
    margin-top: 0;
  }
  
  .history-item {
    margin-bottom: 10px;
  }
  
  .history-item p {
    margin: 5px 0;
  }
  
  .history-filters {
    margin-bottom: 15px;
  }
  
  .custom-select {
    position: relative;
    display: inline-block;
    width: 200px;
  }
  
  .custom-select select {
    display: none;
  }
  
  .select-selected {
    background-color: #2e2e2e;
    color: #fff;
    padding: 8px 16px;
    border: 1px solid #555;
    cursor: pointer;
    user-select: none;
  }
  
  .select-selected:after {
    content: "";
    position: absolute;
    top: 14px;
    right: 10px;
    border: 6px solid transparent;
    border-color: #fff transparent transparent transparent;
  }
  
  .select-selected.select-arrow-active:after {
    border-color: transparent transparent #fff transparent;
    top: 7px;
  }
  
  .select-items div {
    color: #fff;
    padding: 8px 16px;
    cursor: pointer;
    background-color: #2e2e2e;
    border-bottom: 1px solid #555;
  }
  
  .select-items div:hover {
    background-color: #3e3e3e;
  }
  
  .select-hide {
    display: none;
  }
  
  /* Animasyonlar */
  .fade-in {
    animation: fadeIn 0.5s forwards;
  }
  
  .fade-out {
    animation: fadeOut 0.5s forwards;
  }
  
  @keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
  }
  
  @keyframes fadeOut {
    from { opacity: 1; }
    to   { opacity: 0; }
  }
  
  /* İlerleme Çubuğu */
  .progress-bar {
    width: 100%;
    background-color: #333;
    border-radius: 5px;
    margin-bottom: 15px;
  }
  
  .progress {
    height: 10px;
    background-color: #00adb5;
    border-radius: 5px;
    width: 0%;
  }
  
  /* Duyarlı Tasarım */
  @media (max-width: 600px) {
    #app {
      padding: 10px;
    }
  
    body {
      font-size: 14px;
    }
  
    .checkbox-group label, .radio-group label {
      margin-right: 10px;
    }
  
    .options button {
      width: 100%;
      margin-bottom: 10px;
    }
  
    .history-section {
      width: 100%;
    }
  
    .quiz-header {
      flex-direction: column;
      align-items: flex-start;
    }
  
    .quiz-header div {
      margin-top: 10px;
      flex-wrap: wrap;
    }
  
    .quiz-navigation {
      flex-direction: column;
    }
  
    .quiz-navigation button {
      width: 100%;
      margin-bottom: 10px;
    }
  
    .action-buttons {
      flex-direction: column;
    }
  
    .action-buttons button {
      width: 100%;
      margin-bottom: 10px;
    }
  }