body {
            font-family: Arial, Helvetica, sans-serif, sans-serif;
            margin: 0;
            padding: 0;
            background-color: #84a55c;
        }

        .dropdown {
         position: center;
        }

        .dropdown-content {
            display: none;
            position: absolute;
            background-color: #baffc3;
            color:#3d6212;
            margin-left: 545px;
            margin-top: 20px;
            min-width: 130px;
            box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
            padding: 12px 16px;
            }

        .dropdown:hover .dropdown-content {
        display: block;
        }

        .dropbtn {
            background-color: #3d6212;
            color: #ffffff;
            padding: 10px 20px;
            font-size: 16px;
            border: none;
            cursor: pointer;

        }

        .output {
            margin-top: 20px;
            padding: 10px;
            background-color: #673681;
            color: #000000;
            border: 10.2 px solid #d57171;
            margin-left: 50px;
            margin-right: 50px;
        }

        .navbar-investigate {
            overflow: hidden;
            padding: 10px 10px;
            align-items: center;
            position: relative;
            color: rgb(34, 32, 80);
            padding: 10px 10px;
            font-size: 16px;
            border: none;
            text-align: center;

        }

        .material-selector {
            margin-left: 500px;
            margin-right: 100px;
        }
       
        .container-navbar {
            position: relative;
            background-color: rgb(124, 122, 207);
            color: rgb(178, 240, 139);
            padding: 10px 10px;
            font-size: 16px;
            border: none;
            text-align: center;
        }

        .container-navbar {
        background-color: #3d6212;
        color: #ffffff;
        overflow: hidden;
        }

        .container-navbar a {
        float: left;
        display: block;
        background-color: #3d6212;
        color: #ffffff;
        text-align: center;
        padding: 14px 16px;
        text-decoration: none;
        font-size: 17px;
        }

        .container-navbar a:hover {
        background-color: #c9f2c7;
        color: #3d6212;
        border-radius: 2px;
        }

        .container-navbar a.active {
        background-color: #A7C6DA;
        color: rgb(18, 14, 14);
        }

        .topnav .icon {
        display: none;
        }

        input[type="number"] {
            padding: 8px;
            font-size: 16px;
            margin-top: 30px;
            margin-left: 60px;
        }
        input[type="button"] {
            padding: 8px 12px;
            font-size: 16px;
            margin-left: 10px;
        }
        #output {
            margin-top: 20px;
            font-size: 18px;
            font-weight: bold;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }


        .container {
            background: rgb(91, 114, 93);
            color: white;
            border-radius: 10px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            padding: 40px;
            max-width: 500px;
            width: 100%;
            margin-left: 350px;
        }

        h1 {
            color: #c3c3c3;
            margin-bottom: 30px;
            text-align: center;
            font-size: 24px;
            background-color: #3d6212;
            padding: 2%;
        }

        .form-group {
            margin-bottom: 25px;
        }

        label {
            display: flex;
            align-items: center;
            font-size: 16px;
            color: #e9e6e6;
            cursor: pointer;
            margin-bottom: 15px;
        }

        input[type="checkbox"] {
            width: 20px;
            height: 20px;
            margin-right: 12px;
            cursor: pointer;
            accent-color: #146f2f;
        }

        .input-group {
            display: flex;
            flex-direction: column;
        }

        .input-group label {
            font-weight: 600;
            margin-bottom: 8px;
            display: block;
        }

        input[type="text"],
        input[type="select"],
        select {
            padding: 12px;
            border: 2px solid #ddd;
            border-radius: 5px;
            font-size: 16px;
            transition: border-color 0.3s;
        }

        input[type="text"]:focus,
        select:focus {
            outline: none;
            border-color: #66eaa6;
        }

        button {
            width: 100%;
            padding: 12px;
            background: linear-gradient(135deg, #33b85d 0%, #efefef 100%);
            color: white;
            border: none;
            border-radius: 5px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.2s, box-shadow 0.2s;
            margin-top: 20px;
        }

        button:hover:not(:disabled) {
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(19, 254, 93, 0.4);
        }

        button:active:not(:disabled) {
            transform: translateY(0);
        }

        button:disabled {
            background: #ccc;
            cursor: not-allowed;
        }