/* General Page Styling for Dark Mode */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #121212;
    margin: 0;
    padding: 20px;
    color: #e0e0e0;
  }
  
  main {
    max-width: 960px;
    margin: 0 auto;
    background: #1e1e1e;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 0 20px rgba(0, 100, 255, 0.3);
    text-align: left;
  }
  
  h1 {
    font-size: 32px;
    margin-bottom: 10px;
    color: #ffffff;
    text-align: center;
  }
  
  h2 {
    font-size: 22px;
    color: #90caf9;
    margin-top: 25px;
  }
  
  p {
    font-size: 16px;
    margin-bottom: 15px;
    color: #ccc;
  }
  
  label {
    display: block;
    margin: 12px 0 6px;
    font-weight: bold;
    color: #bbb;
  }
  
  input[type="range"] {
    width: 100%;
    accent-color: #64b5f6;
    margin-bottom: 10px;
    background-color: #333;
    border-radius: 4px;
  }
  
  button {
    background-color: #64b5f6;
    color: #121212;
    border: none;
    padding: 10px 16px;
    margin: 5px 5px 10px 0;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: background-color 0.2s ease-in-out;
  }
  
  button:hover {
    background-color: #90caf9;
  }
  
  button:focus {
    outline: none;
  }
  
  canvas {
    border: 2px solid #64b5f6;
    margin: 20px auto 0 auto;
    display: block;
    border-radius: 6px;
    background-color: #121212;
  }
  
  div {
    margin-bottom: 12px;
  }