       body {
            font-family: Arial, sans-serif;
            height: 100vh;
        }

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

        .box {
            background-color: lightblue;
            padding: 20px;
        }

        header {

            color: white;

        }

        .navbar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            background-color: black;
        }

        .message {
            padding: 10px;
            border-radius: 5px;
        }

        .success {
            color: rgb(255, 255, 255);
            background-color: #1eaa3f;
            border: 1px solid #1eaa3f;
        }

        .error {
            color: rgb(255, 255, 255);
            background-color: #be1322;
            border: 1px solid #be1322;
            font-weight: bold;
        }

        .container {
            position: fixed;
            display: flex;
            max-height: 21.9cm;
            width: 100%;
            font-family: Arial, sans-serif;
            background-color: #1eaa3f;

        }

        .sidebar {
            width: 15%;
            max-height: 28cm;
            background-color: rgb(212, 212, 233);
            padding: 20px;
            box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);

        }

        .main-content {
            height: 28cm;
            width: 84.8%;
            padding: 20px;
            background-color: #ede6e7;
            justify-content: center;
            /* Horizontally centers the content */
            align-items: center;

        }

        .centered-div {
            width: 98%;  /* Define width */
            margin: auto; /* Use margin auto for horizontal centering */
            padding: 15px; /* Some padding */
            color: rgb(0, 0, 0); /* Text color */
            /* Center text inside the div */
            font-size: medium;
            justify-content: center;  /* Horizontally centers the content */
            align-items: center;
            height: 21.9cm;

        }

        footer {
            position: fixed;
            padding: 0px 10px 0px 10px;
            bottom: 0;
            width: 100%;
            /* Height of the footer*/
            height: 30px;
            background: grey;
            text-align: center;

        }

        .tbtn {

            display: inline-block;
            border: 1px solid black;
            /*background-color: transparent;*/
            font-size: 14px;
            font-weight: bold;
            border-radius: 2px;
            cursor: pointer;
            color:darkblue;
            text-decoration: none;
            padding:2px;

        }
        .tbtn a{
            cursor: pointer;
            color:darkblue;
            text-decoration: none;
        }



        .inputbtn {
            padding: 5px 15px;
            font-size: 14px;
            font-weight: bold;
            color: darkblue;
            background-color: #abaeaf;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: transform 0.2s,
                box-shadow 0.2s;
            box-shadow: 3px 3px #8e9699;
            margin-left: .3cm;
            min-width: 3cm;
            text-decoration: none;

        }
        .inputbtn a{
            text-decoration: none;
            color: darkblue;
        }

        /*.inputbtn:active {
            transform: translateY(4px);
            box-shadow: 0 2px #006494;
        }*/

        .bkdiv {
            display: flex;
            justify-content: center;
            min-height: 98%;
            padding: 16px;
            width: 100%;
            background-color: rgb(223, 222, 222);
            box-shadow:  -5px -5px 10px rgba(255, 255, 255, 0.7),
            2px 2px 3px rgb(100, 100, 100);

        }

        .close-button {
            background-color: transparent;
            /* Or any other color */
            border: none;
            cursor: pointer;
            font-size: 16px;
            /* Adjust size as necessary */
            float: right;
            /* Align to the right */
        }
        .sidebutton {
        font-size: large;
        font-weight:bold ;
        width: 5cm;
        height: 1cm;
        background-color: rgb(163, 159, 177);
        border-radius: 8px;
        margin:.25cm;
        cursor: pointer;
        color:rgb(0, 0, 126);
        text-decoration: none;
        }
        input{
            font-size: medium;
            font-weight: bold;
            color:black
        }
        label{
            font-size: medium;
            font-weight: bold;
            color:darkblue
        }
        select{
            height: .8cm;
            font-size: medium;
            font-weight: bold;
        }


input[type="date"] {
    font-family: inherit;
}

input[type="date"]::placeholder {
    color: #999;
    font-style: italic;
}

/* Custom calendar icon */
input[type="date"]::-webkit-calendar-picker-indicator {
    background: transparent;
    bottom: 0;
    color: transparent;
    cursor: pointer;
    height: auto;
    left: 0;
    position: absolute;
    right: 0;
    top: 0;
    width: auto;
}

.input-group-date {
    position: relative;
}

.input-group-date::after {
    content: "📅";
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

.input-sunken {
  padding: .1cm;
  border: 1px solid rgb(194,194,194);
  border-radius: .1cm;
  background-color: #ffffff;
  box-shadow: inset 2px 2px 3px rgb(100, 100, 100),
            inset -5px -5px 10px rgba(255, 255, 255, 0.7);

}

.textarea-sunken {
  padding-left: .3cm;
  border: 1px solid rgb(194,194,194);
  border-radius: .1cm;
  background-color: #ffffff;
  box-shadow: inset 2px 2px 3px rgb(100, 100, 100),
            inset -5px -5px 10px rgba(255, 255, 255, 0.7);

}

.secdiv {

        justify-content: center;
        padding:10px;
        width: 100%;
        background-color: rgb(223, 222, 222);
        box-shadow:  -5px -5px 10px rgba(255, 255, 255, 0.7),
        2px 2px 3px rgb(100, 100, 100);

    }