body {
    background: linear-gradient(135deg, #0e0914 0%, #0a0404 40%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  }
  .keyboard-button {
    transition: transform 0.1s ease;
    user-select: none;
    font-size: 1.5rem;
    padding: 0.5rem 1rem;
    height: 100px;
    border-bottom: 10px red;
  }

  .keyboard-button.correct {
    background-color: green;
  }
  .keyboard-button.incorrect {
    background-color: red;
  }
  .hidden {
    display: none;
  }

  .flex-container {
    display: flex; 
    align-items: center; 
    gap: 10px; 
}

.text-container {
    display: flex; 
    flex-direction: column; 
}


.timer-container {
  display: flex; 
  align-items: center; 
  width: 100%; 
  position: relative
}
  
  #timerSlider {
    transition: width 5s ease-in-out;
    height: 5px;
    background-color: rgb(54, 184, 171);
    width: 100%;
  }

  #timer {
    position: absolute;
    right: 10px
  }

  #startButton {
    font-size: 1.25rem;
    padding: 1rem 2rem;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 0.5rem;
    transition: background-color 0.3s;
    display: block; 
    text-align: center;
    width: 100%;
  }

  #startButton:hover {
    background-color: #42a850; 
  }

  #failure, #success {
    font-size: 1.25rem;
    padding: 1rem 2rem;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 0.5rem;
    transition: background-color 0.3s;
    width: 100%; 
    text-align: center;
    opacity: 50%;
  }
  #keyboard {
    grid-template-columns: repeat(15, 1fr); 
    gap: 0.5rem; 
    justify-content: center;
    flex-wrap: wrap;
    color: white;
  }
  #keyboard-container {
    display: grid; 
  }