:root[data-theme="light"] {
    --page-bg: #f5f5f5;
    --not-page-bg: #313131;

    --general-text-color: #333333;
    --highlight-color: rgb(129, 48, 48);
    --unipositio-color: rgb(112, 112, 112);
    --filter: invert(14%) sepia(27%) saturate(0%) hue-rotate(159deg)
        brightness(104%) contrast(88%);

    --circle-pos: 0px;
    --image-shadow-color: rgba(0, 0, 0, var(--alpha-shadow));

    --icon-color: #777777;
}

:root[data-theme="dark"] {
    --page-bg: #333333;
    --not-page-bg: #f5f5f5;

    --general-text-color: #f5f5f5;
    --highlight-color: rgb(255, 151, 151);
    --unipositio-color: rgb(155, 155, 155);
    --filter: invert(100%) sepia(91%) saturate(1%) hue-rotate(252deg)
        brightness(107%) contrast(100%);

    --circle-pos: 10px;
    --image-shadow-color: rgba(250, 250, 250, var(--alpha-shadow));

    --icon-color: #a0a0a0;
}

#circle-butt {
    transform: translateX(var(--circle-pos));
}

body {
    width: 100%;
    background-color: var(--page-bg);
    display: inline-block;
    margin: 0px auto;
    padding: 0;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    height: fit-content;
}

ul {
    list-style-type: none;
    overflow: hidden;
    width: auto;
}

li a {
    display: block;
    padding-left: 0px;
    font-size: 15px;
}

li a.projects {
    display: inline;
    font-weight: bold;
    font-size: 18px;
}

.study li {
    margin-left: -24px;
}

.themesw {
    width: 30px;
    height: 20px;
    border: none;
    cursor: pointer;
    margin-right: 15px;
}

.columnleft {
    width: 400px;
    margin-left: 20px;
    display: inline-block;
    align-self: flex-start;
    text-align: center;
}
.columnright {
    width: 700px;
    margin-right: 20px;
    display: inline-block;
    text-align: left;
    font-size: 18px;
    line-height: 1.7;
}

.row {
    display: flex;
    flex-direction: row;
    justify-content: center;
    margin-top: 50px;
    width: 100%;
}

a {
    text-decoration: none;
    color: var(--highlight-color);
}

a.university {
    font-size: 25px;
}

.uniposition {
    color: var(--unipositio-color);
    font-size: 25px;
    margin-top: 10px;
    margin-bottom: 0px;
}

.profname {
    font-size: 45px;
    font-weight: 300;
    margin-bottom: 0;
}

.externalLink {
    font-size: 15px;
    color: var(--icon-color);
}