* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
  
  :root {
    
    --primary-color: #3a86ff;
    --secondary-color: #ff006e;
    --accent-color: #ffbe0b;
    --correct-color: #02c39a;
    --incorrect-color: #e63946;
    --bg-color: #f8f9fa;
    --text-color: #212529;
    --light-text: #6c757d;
    --border-color: #dee2e6;
    
    
    --spacing-xs: 0.125rem;
    --spacing-sm: 0.25rem;
    --spacing-md: .5rem;
    --spacing-lg: 1.0rem;
    --spacing-xl: 1.5rem;
    
    
    --border-radius: 8px;
    
    
    --transition-speed: 0.3s;
  }
  
  body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
  }
  
  
  h1, h2, h3, h4, h5 {
    margin-bottom: var(--spacing-md);
    font-weight: 600;
  }
  
  p {
    margin-bottom: var(--spacing-sm);
  }
  
  ol {
    list-style-type: none;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: left;
    margin-left: 0;
  }
  
  
  button {
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
  }
  
  button:hover {
    background-color: #2a75e6;
    transform: translateY(-2px);
  }
  
  button:active {
    transform: translateY(1px);
  }
  
  .submit-btn {
    cursor: pointer;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    transition: background-color var(--transition-speed);
    margin-top: var(--spacing-md);
    width: 100%;
    max-width: 200px;
  }
  
  .submit-btn:hover {
    background-color: #e50063;
  }
  
  .correction {
    margin-top: .5%;
    transition: ease-in .3s;
}

.correction>p {
    font-weight: 800;

}
  
  header {
    background-color: var(--primary-color);
    color: white;
    padding: var(--spacing-md);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  }
  
  .top {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-md);
  }
  
  .logo {
    font-size: 2.5rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin: 0;
  }
  
  .today {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
  }
  
  .quiz-mode {
    font-size: 1.2rem;
    margin: 0;
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--border-radius);
  }
  
  .main-content {
    flex: 1;
    padding: var(--spacing-lg);
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    position:relative;
  }
  
  footer {
    background-color: var(--text-color);
    color: white;
    text-align: center;
    padding: var(--spacing-md);
    margin-top: auto;
  }
  
  
  .start-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
  }
  
  .start-btn, .start-retry-btn {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: 1.25rem;
    min-width: 250px;
  }
  
  .start-retry-btn {
    background-color: var(--accent-color);
    color: var(--text-color);
  }
  
  .start-retry-btn:hover {
    background-color: #e6ac00;
  }
  
  .temp-buttons {
    display: flex;
    justify-content: space-between;

  }
 
  .stopwatch-container {
    background-color: rgba(255, 255, 255, 0.2);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  
  .stopwatch-container h3 {
    margin-bottom: var(--spacing-xs);
    font-size: 1rem;
  }
  
  #time {
    display: flex;
    align-items: center;
  }
  
  .digit {
    font-size: 1.2rem;
    font-weight: bold;
    background-color: rgba(0, 0, 0, 0.2);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
  }
  
  .txt {
    font-size: 0.8rem;
    margin: 0 var(--spacing-xs);
  }
  .count-nums {
    display: flex;
    justify-content: center;
    gap: .5rem;
    font-weight: 600;
    font-size: 1.3rem;
  }
  
  .progress-container {
    margin: var(--spacing-md) 0;
    background-color: var(--border-color);
    border-radius: var(--border-radius);
    height: 8px;
    overflow: hidden;
  }
  
  #progress-bar {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.5s ease;
  }
  
  
  .question-wrapper, .question-answer-wrapper {
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    margin-bottom: var(--spacing-lg);
  }
  
  .meta-info {
    display: flex;
    flex-wrap: wrap;
    
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    color: var(--light-text);
    font-size: 0.9rem;
  }
  
  .question {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: var(--spacing-lg);
    line-height: 1.4;
  }
  
  
  form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
  }
  
  .question-answer {
    font-weight: 700;
}

.the-answer {
    color: blue;
    font-weight: 700;
}

  .choice {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    transition: all var(--transition-speed);
    position: relative;
  }

  
  .choice:hover {
    background-color: #f0f0f0;
  }
  
  .choice input[type="radio"] {
    margin-right: var(--spacing-md);
    cursor: pointer;
    width: 20px;
    height: 20px;
  }
  
  .choice label {
    flex: 1;
    cursor: pointer;
  }
  
  .icons {
    display: relative;
    font-size: 1.5rem;
  }

  .icons i {
    position: absolute;
    top: 0;
    right: 0;
    font-size: 24px;
    display: none;
    
    transition: ease-in .3s;
}
  
  
  .choice.correct {
    background-color: rgba(2, 195, 154, 0.1);
    border-color: var(--correct-color);
  }
  
  .choice.incorrect {
    background-color: rgba(230, 57, 70, 0.1);
    border-color: var(--incorrect-color);
  }
  
  .choice.correct .icons .bx-check {
    display: inline-block;
    color: var(--correct-color);
  }
  
  .choice.incorrect .icons .bx-x {
    display: inline-block;
    color: var(--incorrect-color);
  }
  
  
  .question-control {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
  }
  
  #next-question {
    background-color: var(--accent-color);
    color: var(--text-color);
  }
  
  #next-question:hover {
    background-color: #e6ac00;
  }
  
  #finish-btn {
    background-color: var(--secondary-color);
  }
  
  #finish-btn:hover {
    background-color: #e50063;
  }
  
  
  .overlay {
    position: fixed;
    inset: 0;
    top: 0;
    background: rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;

}
  
  .your-results {
    background-color: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    max-width: 500px;
    width: 90%;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
  }
  
  .your-results p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-md);
  }
  
  #feedback {
    font-size: 1.5rem;
    font-weight: bold;
    margin: var(--spacing-lg) 0;
  }
  
  .your-results button {
    margin-top: var(--spacing-md);
    width: 100%;
  }
  
  .review-btn {
    cursor: pointer;
    background-color: var(--primary-color);
  }
  


.results-summary-btn button {
  background-color: var(--accent-color);
  color: var(--text-color);
  cursor: pointer;


}
.results-summary-btn button:hover {
  background-color: #e6ac00;
  cursor: pointer;
}

  .retry-exact-in-overlay {
    background-color: var(--accent-color);
    color: var(--text-color);
    cursor: pointer;
  }
  
  .try-again-btn {
    background-color: var(--secondary-color);
    cursor: pointer;
  }
  
  .review-btn, .retry-exact-in-overlay, .try-again-btn {
    padding: 4px 10px 4px 10px;
    min-width: 50%;
    border-radius: 5px;
  }
  .hidden {
    display: none !important;
  }
  
  .temp-hidden {
display: none;
  }