body {
    font-family: "Poppins", sans-serif;
    margin: 0;
    padding: 0;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: url("/imgs/smol.png"), auto;
    animation: gradientAnimation 30s infinite alternate-reverse;
  }
  
  @keyframes gradientAnimation {
    0% {
      background: linear-gradient(to right, #333, #555);
    }
  
    100% {
      background: linear-gradient(to right, #555, #333);
    }
  }
  
  #calculator {
    background-color: #ffffff;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    width: calc(100% - 50px);
    min-width: 300px;
    max-width: 450px;
  }
  
  h2 {
    text-align: center;
    margin-bottom: 20px;
  }
  
  input {
    width: 100%;
    padding: 15px;
    margin-bottom: 15px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
  }
  
  label {
    font-weight: bold;
    margin-bottom: 5px;
  }
  
  button {
    width: 100%;
    padding: 15px;
    background-color: #4caf50;
    color: #ffffff;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
    margin-bottom: 10px;
  }
  
  button:hover {
    background-color: #3e8e41;
  }
  
  #result {
    margin-top: 20px;
    font-weight: bold;
    font-size: 18px;
  }
  
  .toast-message {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 15px;
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    opacity: 0;
    transition: opacity 0.3s ease-in-out;
    z-index: 999;
  }
  
  .pass-message {
    color: #28a745;
  }
  
  .fail-message {
    color: #dc3545;
  }
  
  input[type="number"] {
    appearance: textfield;
  }
  
  input::-webkit-outer-spin-button,
  input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
  }