body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: white;
    
  }

  header {
    background-color: #0F3CC9;
    color: white;
    padding: 20px;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
    position: relative;
    border-radius: 10px;
  }

  .menu-icon {
    position: absolute;
    top: 15px;
    left: 15px;
    font-size: 20px;
    cursor: pointer;
  }

  .settings-icon {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 20px;
    cursor: pointer;
  }

  .side-menu {
    height: 100%;
    width: 0;
    position: fixed;
    top: 0;
    left: 0;
    background-color: #333;
    overflow-x: hidden;
    transition: 0.3s;
    padding-top: 60px;
    z-index: 9999;
  }

  .side-menu a {
    padding: 15px 15px;
    text-decoration: none;
    font-size: 18px;
    color: white;
    display: block;
    transition: 0.3s;
  }

  .side-menu a:hover {
    background-color: #f37021;
  }

  .side-menu .close-btn {
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 25px;
    cursor: pointer;
  }



   
    
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            font-family: 'Poppins', sans-serif;
        }
        body {
            background: #fff;
            color: #fff;
            text-align: center;
            padding: 20px;
        }
        .container {
            background: #1e1e1e;
            padding: 25px;
            border-radius: 12px;
            box-shadow: 0 0 15px rgba(255, 255, 255, 0.1);
            width: 90%;
            max-width: 600px;
            margin: auto;
            margin-top: 30px;
        }
        h1 {
            color: #ffcc00;
            margin-bottom: 15px;
        }
        table {
            width: 100%;
            margin-top: 15px;
            border-collapse: collapse;
        }
        th, td {
            padding: 12px;
            border: 1px solid #333;
            text-align: center;
        }
        th {
            background: #ffcc00;
            color: #121212;
        }
        input, select {
            width: 100%;
            padding: 8px;
            border: none;
            border-radius: 5px;
            text-align: center;
            background: ;
            color: red;
        }
        .buttons {
            display: flex;
            justify-content: space-between;
            margin-top: 15px;
        }
        .btn {
            width: 48%;
            background: #ffcc00;
            color: #121212;
            padding: 12px;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-weight: bold;
            transition: 0.3s;
        }
        .btn:hover {
            background: #ffd633;
        }
        .remove-btn {
            background: #fff;
            padding: 8px 12px;
            font-size: 14px;
            border-radius: 5px;
            cursor: pointer;
            transition: 0.3s;
        }
        .remove-btn:hover {
            background: #ff6666;
        }
        #result {
            margin-top: 15px;
            font-size: 24px;
            font-weight: bold;
            color: #ffcc00;
        }
        @media (max-width: 600px) {
            th, td {
                font-size: 14px;
                padding: 10px;
            }
            .btn {
                font-size: 16px;
                padding: 10px;
            }
        }