body {
    font-family: 'Roboto Mono', monospace;
    background: linear-gradient(270deg, #111111, #220000, #111111);
    background-size: 600% 600%;
    animation: gradientMove 20s ease infinite;
    color: #ffffff;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
  }
  
  @keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
  }
  
  .container {
    background: rgba(30,30,30,0.9);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
    width: 600px;
    box-shadow: 0 0 20px rgba(255,136,0,0.5);
  }
  
  h1 {
    margin-bottom: 20px;
    color: #ff8800;
  }
  
  .equation {
    font-size: 20px;
    margin-bottom: 20px;
  }
  
  .equation input {
    width: 60px;
    padding: 5px;
    margin: 0 5px;
    border-radius: 5px;
    border: 1px solid #ff8800;
    background-color: #333333;
    color: #ffffff;
    font-size: 18px;
    text-align: center;
    -moz-appearance: textfield;
  }
  
  .equation input::-webkit-inner-spin-button,
  .equation input::-webkit-outer-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }
  
  button {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    background-color: #ff8800;
    color: #1a1a1a;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
  }
  
  button:hover {
    background-color: #cc7000;
  }
  
  .result {
    margin-top: 15px;
    font-size: 16px;
    display: flex;
    justify-content: space-around;
  }
  
  #quadraticCanvas {
    margin-top: 20px;
    border: 2px solid #ff8800;
    border-radius: 8px;
    background-color: #1a1a1a;
  }