html {
    font-family: "Ubuntu", sans-serif;
    scroll-behavior: smooth;
    font-weight: 300;
}

body {
    margin: 0;
    scroll-margin-top: 50px;
}

b {
    font-weight: 400;
}

.skills {
    margin-top: 8px;
}

.skills img {
    margin-right: 5px;
}

.header, .footer, .content {
    padding-left: 10%;
    padding-right: 10%;
}

/*** not mobile devices ***/
@media (min-width: 1300px) {
    .header, .footer, .content {
        padding-left: 20%;
        padding-right: 20%;
    }
}

.about-me-content {
    display: grid;
    grid-template-columns: 50% 50%;
    align-items: center;
}

.about-me-content .career {
    grid-column: 1;
    padding-top: 30px;
    padding-bottom: 30px;
}

.about-me-content .expertise {
    grid-column: 2;
    padding: 30px;
}

/* .about-me-subtitle {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 17px;
} */

.project-link {
    font-size: 12px;
    margin-top: 2px;
    margin-bottom: 2px;
}

.project-title {
    font-weight: 400;
}

.footer {
    padding-top: 100px;
    padding-bottom: 100px;
    background-color: #332D2D;
    color: white;
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-rows: 1fr auto;
    align-items: center;
    column-gap: 70px;
    row-gap: 60px;
}

/*** not mobile devices ***/
@media (min-width: 700px) {
    .footer {
        padding-top: 100px;
        padding-bottom: 100px;
        background-color: #332D2D;
        color: white;
        display: grid;
        grid-template-columns: auto 1fr 1fr auto;
        align-items: center;
        column-gap: 70px;
    }
}

.footer .reach-me {
    grid-column: 1;
}

.footer .find-me {
    grid-column: 2;
}

.footer a {
    color: white;
    text-decoration: none;
    transition: text-decoration 0.3s;
}

.footer a:hover {
    text-decoration: underline;
}

/*** not mobile devices ***/
@media (min-width: 700px) {
    .impressum {
        margin: 30px;
        text-align: right;
    }
}

.impressum {
    margin: 30px;
    text-align: right;

}

.content {
    margin-bottom: 120px;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.title {
    display: flex;
    justify-content: center;
    text-transform: uppercase;
    font-weight: 300;
    margin-bottom: 15px;
    margin-top: 80px;
    font-size: 28px;
}

.sub-title {
    display: flex;
    justify-content: center;
    text-transform: uppercase;
    font-weight: 400;
    margin-bottom: 10px;
    margin-top: 30px;
    font-size: 17px;
}

.space-sub-sub-title {
    margin-top: 20px;
}

.sub-sub-title {
    display: flex;
    justify-content: center;
    text-transform: uppercase;
    font-weight: 400;
    margin-bottom: 20px;
    font-size: 13px;
}

.footer-text {
    margin-bottom: 15px;
    text-transform: uppercase;
    font-weight: bold;
}

.footer-link {
    margin-right: 15px;
}

.small-text {
    font-size: 12px;
}

.spacer {
    border-bottom: 1px #E9CFCF solid;
    margin-left: 35%;
    margin-right: 35%;
    margin-bottom: 30px;
}

ul {
    list-style-type: none;
    margin-bottom: 10px;
    padding-left: 1em;
}

li {
    margin-bottom: 26px;
    position: relative;
}

li::before {
    content: '\2022';
    color: #D9D9D9;
    font-size: 40px;
    position: absolute;
    left: -1em;
    top: -15px;
}

.circle {
    margin-top: -8px;

    position: relative;
    width: 230px;
    height: 230px;
    margin-left: auto;
    margin-right: auto;
    border-radius: 50%;
    background-color: #faf8f8;
}

.icon {
    position: absolute;
    border-radius: 50%;
}

.icon-bar {
    margin-right: 10px;
    margin-left: 10px;
}

.cert-group {
    margin-top: 5px;
}

.icon-box {
    margin-top: -8px;
    margin-bottom: 20px;
    width: 200px;
    text-align: center;
    margin-left: auto;
    margin-right: auto;
}

.worked-with {
    text-align: center;
}

.movement {
    animation: moveIcon 50s linear infinite;
    transform-origin: 0px 0px;
    margin-left: 95px;
    margin-top: 95px;

}

.central {
    padding: 20px;
    background-color: #fff;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.icon:nth-child(2) { animation-delay: -50s; }
.icon:nth-child(3) { animation-delay: -40s; }
.icon:nth-child(4) { animation-delay: -30s; }
.icon:nth-child(5) { animation-delay: -20s; }
.icon:nth-child(6) { animation-delay: -10s; }
.icon:nth-child(7) { animation-delay: -0s; }

@keyframes moveIcon {
    0% { transform: rotate(0deg) translate(80px) rotate(0deg); }
    100% { transform: rotate(360deg) translate(80px) rotate(-360deg); }
}

.career-text {
    text-align: justify;
}

.career-image {
    float: left;
    margin-right: 20px;
    margin-bottom: 10px;
    margin-top: 10px;
    width: 120px;
    height: auto;
    border-radius: 5px;
}

  
.tooltip {
    position: relative;
    display: inline-block;
    cursor: pointer;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: auto;
    background-color: #000;
    color: #fff;
    text-align: center;
    border-radius: 6px;
    padding: 5px 10px;
    position: absolute;
    z-index: 1;
    top: -50px;
    margin-left: -200%;
    opacity: 0;
    transition: opacity 0.3s;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.imprint {
    margin-right: 15px;
}

.icon-spacer {
    margin-left: 15px;
}

.sub-title-space {
    margin-top: 90px;
}



/*** not mobile devices ***/
@media (min-width: 700px) {
    .fake-header {
        height: 90px;
        background-color: #6AC2A3;
    }
}

.fake-header {
    height: 50px;
    background-color: #6AC2A3;
}

/*** not mobile devices ***/
@media (min-width: 700px) {
    .header-sticky {
        padding-top: 8px;
        padding-bottom: 8px;
        position: sticky;
        top: 0;
        background-color: #6AC2A3;
        z-index: 100;
    }
}

.header-sticky {
    padding-top: 8px;
    padding-bottom: 8px;
    position: sticky;
    top: 0;
    background-color: #6AC2A3;
    z-index: 100;
}

/*** not mobile devices ***/
@media (min-width: 700px) {
    #projects, #about, #contact {
        scroll-margin-top: 130px
    }
}

#projects, #about, #contact, #master-thesis {
    scroll-margin-top: 150px
}

.certificate {
    text-decoration: none;
}

video {
    border-radius: 8px;
    width: 80%; 
    display: block; 
    margin: 0 auto;
}

.unity {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

#unity-canvas {
    max-width: 100%;
    max-height: 100%;
}

.center {
    text-align: center;
    display: flex;
    justify-content: center; /* center horizontally */
    align-items: center;     /* center vertically */
}

.project-section {
    margin-left: 30px;
    margin-right: 30px;
}