body {
    background: #111;
    color: #fff;
    text-align: center;
    font-family: Poppins, sans-serif;
    padding-top: 40px;
    margin: 0;
  }
  
  /* 
    BARS CONTAINER
    This box holds all the bars that represent the numbers.
    Bars are created dynamically using JavaScript.
  */
  #bars-container {
    display: flex;
    justify-content: center;
    align-items: flex-end;
    height: 350px;
    width: 90%;
    margin: auto;
    border: 1px solid #333;
    padding: 15px;
    border-radius: 10px;
    overflow: hidden;
  }
  
  /* 
    INDIVIDUAL BARS
    Each bar represents one number from the array.
    Height of the bar depends on the value of the element.
  */
  .bar {
    width: 20px;
    margin: 0 3px;
    background: #4c8bf5;
    border-radius: 4px;
    transition: height 0.2s ease, background 0.2s ease; 
  }
  
  /* 
    LABELS ON BARS
    Displays the numerical value on top of each bar.
  */
  .bar-label {
    color: white;
    font-size: 12px;
    text-align: center;
    padding-top: 4px;
  }
  
  
  /* 
    CONTROLS SECTION
    The input fields and buttons appear inside this container.
  */
  .controls {
    margin-bottom: 30px;
  }
  
  /* 
    INPUT FIELDS
    Basic styling for number and text inputs.
    Rounded corners + consistent spacing.
  */
  input {
    padding: 8px 12px;
    border-radius: 6px;
    border: none;
    margin: 0 6px;
    outline: none;
    font-size: 15px;
  }
  
  /* 
    BUTTON STYLING
    Both "Generate Bars" and "Start Sorting" buttons share this style.
  */
  button {
    margin: 0 8px;
    padding: 10px 18px;
    background: #ffcb3c;
    border: none;
    color: #000;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s ease;
    font-size: 15px;
  }
  
  button:hover {
    transform: translateY(-3px);
  }
  
  /* RESPONSIVENESS */
  
  /* Large Tablets */
  @media (max-width: 992px) {
    #bars-container {
      height: 300px;
    }
  
    .bar {
      width: 18px;
      margin: 0 2px;
    }
  }
  
  /* Tablets & Medium Screens */
  @media (max-width: 768px) {
    input,
    button {
      font-size: 14px;
      padding: 8px 14px;
    }
  
    #bars-container {
      height: 260px;
    }
  
    .bar {
      width: 14px;
      margin: 0 2px;
    }
  }
  
  /* Mobile Phones */
  @media (max-width: 500px) {
  
    .controls {
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 0 20px;
    }
  
    input,
    button {
      width: 100%;
      margin: 0;
      font-size: 14px;
    }
  
    #bars-container {
      height: 220px;
      width: 95%;
      padding: 10px;
    }
  
    .bar {
      width: 10px;
      margin: 0 1px;
    }
  }
  
  /* Extra Small Devices */
  @media (max-width: 360px) {
    h2 {
      font-size: 20px;
    }
  
    .bar {
      width: 8px;
      margin: 0 1px;
    }
  
    #bars-container {
      height: 200px;
    }
  }