.doctor-box {
            position: relative;
            width: 500px;
            height: 200px;
            background-color: #658fc6;
            border-radius: 10px;
            padding: 10px;
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
            text-align: center;
            top: -200px;
        }

        .doctor-image {
            width: 100px;
            height: 100px;
            border-radius: 50%;
            margin: auto;
            margin-bottom: 10px;
        }

        .welcome-message {
            font-size: 18px;
            margin-bottom: 10px;
            background-color: white;
            padding: 5px;
            border-radius: 5px;

        }

        .function-modules {
            display: flex;
            justify-content: space-around;
            margin-bottom: 10px;
        }

        .function-module {
            background-color: #eaeaea;
            border-radius: 5px;
            padding: 5px 10px;
            cursor: pointer;
            transition: background-color 0.3s;
        }

        .function-module:hover {
            background-color: #63cf8b;
        }

        .exit-button {
            background-color: #ff4d4d;
            color: white;
            border: none;
            border-radius: 20px;
            padding: 5px 10px;
            cursor: pointer;
            outline: none;
            position: absolute;
            bottom: 400px;
            width: 200px;
        }

        .exit-button:hover {
            background-color: #ff2d2d;
        }
    body, html {
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 0;
}