.scroll-animation {
    opacity: 0;
    transition: opacity 1.5s ease-in-out;
    /* Other initial styles */
}

.scroll-animation.animate {
    opacity: 1;
    /* Other styles for the animated state */
}



.cover {
    z-index: 99;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0) 0%, rgba(0, 0, 0, 0.9) 100%);
    pointer-events: none;
    width: 100vw;
    opacity: .05;
    height: 100vh;
    position: fixed;
}

.mist {
    z-index: 100;
    background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, rgba(255, 255, 255, 0) 50%, rgb(1, 11, 31) 101%);
    pointer-events: none;
    width: 100vw;
    opacity: .7;
    height: 100vh;
    position: fixed;
}

body {
    /*background-color: #040917;*/
    margin: 0;
    background: linear-gradient(-45deg, #18062d, #041523, #040917, #040917);
    animation: animate 10s ease infinite;
    background-size: 250% 250%;
    color: white;
    font-family: Main;
    font-size: 14px;
    letter-spacing: .1em;
}

@keyframes animate {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 0% 100%;
    }

    100% {
        background-position: 0% 50%;
    }
}


main {
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    padding: 0 50px;
}

.standard-margin {
    margin-bottom: 100px;
}

.title {
    font-family: 'Font';
    letter-spacing: .3em;
}

h2 {
    font-size: 45px;
    letter-spacing: .3em;
    text-align: center;
}

h3 {
    font-size: 26px;
    text-align: center;
}

article {
    width: 100%;
    max-width: 1140px;
}

.center {
    align-items: center;
}

.left-holder {
    align-items: start;
    width: 100%;
}

.landing-page {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.landing {
    display: flex;
    position: fixed;
    flex-direction: column;
    margin-top: 100px;
}

.landing span {
    font-size: 30px;
    font-weight: 200;
}

.landing h1 {
    font-size: 100px;
    padding: none;
    margin: 0;
    font-weight: 200;
    letter-spacing: .3em;
}

.landing div {
    border-bottom: 1px solid white;
    width: 100%;
    max-width: 700px;
    margin: 20px 20px;
}

.landing p {
    font-size: 16px;
    word-spacing: 1pt;

    letter-spacing: 1pt;
    text-align: center;
}

.landing-img {
    margin-top: 400px;
    width: 100%;
    max-width: 1500px;
}



.landing-info {
    margin-top: -80px;
    width: fit-content;
    display: flex;
    flex-direction: column;
    font-size: 14px;
    opacity: .5;
    text-transform: uppercase;
}

.landing-info div {
    border-bottom: 1px solid white;
    width: 200px;
    margin-top: 20px;
}

.landing-info p {
    margin: 10px 0;
    color: rgb(161, 161, 161);
}

.landing-info b {
    color: white;
}



.authors-section {
    align-items: center;
    display: flex;
    flex-direction: column;
}

.authors {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: 50px;
    width: 100%;
    /*border: 1px solid white;*/
}

.author {
    width: 100%;
    margin-bottom: 20px;
}

.author h3 {
    opacity: .5;
    margin: 0;
    margin-top: 20px;
}

.author p {
    text-align: center;
}

.author li {
    margin-top: 20px;
    border-bottom: 1px solid white;
    padding-bottom: 5px;
}

.author ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
}

.galaxy {
    display: flex;
    width: 100%;
    justify-content: end;
}

.galaxy img {
    width: 70%;
    height: auto;
}

.sun {
    display: flex;
    width: 100%;
    justify-content: start;
}

.sun img {
    width: 75%;
    margin-left: -38%;
    height: auto;
}

.items {
    display: flex;
    flex-direction: column;

}

.item {
    display: flex;
    flex-direction: row;
    align-items: center;
}

.item div {
    width: 100%;
}

.item model-viewer {
    height: 500px;
    contain: none;
}

#item-oposite model-viewer {
    height: 300px;
    contain: none;
}

.special-note {
    text-transform: uppercase;
    font-size: 20px;
    opacity: .5;

}

.prediction-model-section {
    align-items: center;
    display: flex;
    flex-direction: column;
}


#image-sequence {
    width: 100%;
    box-shadow: 0px 0px 100px black;
    margin-bottom: 50px;
}

#slider {
    width: 100%;
    color: red;
    background-color: black;
    -webkit-appearance: none;
    border-radius: 100px;
}

#slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 30px;
    border-radius: 100px;
    height: 30px;
    background-color: red;
    cursor: pointer;
    box-shadow: 0px 0px 40px red;
}

#slider-container p {
    font-size: 18px;
    text-transform: uppercase;
}

.simulation {
    margin-bottom: 500px;
}

@media (max-width: 1145px) {
    .landing span {
        font-size: 24px;
    }

    .landing h1 {
        font-size: 50px;
    }
}

@media (max-width: 960px) {
    .title {
        font-size: 20px;
    }
}

@media (max-width: 750px) {
    .landing-img {
        margin-bottom: 70px;
    }
}

@media (min-width: 630px) {
    .item>* {
        flex: 1;
    }
}

@media (max-width: 630px) {
    .simulation {
        margin-bottom: 200px;
    }

    main {

        padding: 0 20px;
    }

    .item {
        flex-direction: column;
    }

    #item-oposite {
        flex-direction: column-reverse;
    }

    .authors {
        flex-direction: column;
    }

    .landing span {
        font-size: 18px;
    }

    .landing h1 {
        font-size: 40px;
    }

}

@media (max-width: 480px) {
    .title {
        font-size: 16px;
    }

    .landing span {
        font-size: 15px;
    }

    .landing h1 {
        font-size: 30px;
    }
}