html {
    font-family: 'Roboto', sans-serif;
    scroll-behavior: smooth;
}

body {
    height: 100%;
    width: 100%;
    margin: 0;
    padding: 0;
}

@keyframes fadein {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

body {
    display: flex;
    flex-direction: column;
    padding-bottom: 200px;
    min-height: 200vh;
    background: #fff;
}

.style {
    padding: 0;
    margin: 0;
    font-family: "Open Sans", "Helvetica Neue", Helvetica, Arial, sans-serif;
    box-sizing: border-box;
    text-align: center;
}

.navigation_settings {
    top: 0;
    width: 100%;
    position: fixed;
    background-color: transparent /*#e8e8e8*/;
    padding: 0.9em;
    transition: all 200ms linear;
}

nav {
    z-index: 999;
}

.nav_logo {
    float: left;
    margin-top: 0.15%;
    margin-left: 15%;
}

.nav_sections {
    float: right;
    margin-right: 10%;

}

.nav_table {
    display: flex;
    list-style-type: none;
}

.main_intro {
    width: 100%;
    opacity: 100%;
    height: 45vh;
    display: flex;
    align-items: center;
    justify-content: center;
    justify-items: center;
    align-content: center;
    flex-direction: column;
}

.main_intro::before {
    content: "";
    background-image: url("../img/main.png");
    background-attachment: fixed;
    background-position: top;
    background-size: auto;
    background-color: white;
    background-repeat: no-repeat;
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    opacity: 70%;
    z-index: -1;
}

.harmonogram_header {
    color: white;
    text-align: center;
    margin-bottom: 2em;
}

.main_intro_text {
    position: relative;
    padding-top: 10vh;
    text-align: center;
    color: black;
}

.page_head {
    padding: 5rem 6rem;
    color: #fff;
    background-color: #159957;
    background-image: linear-gradient(120deg, #155799, #159957);
    display: block;
    font-size: 16px;
    line-height: 1.5;
}

.name_of_project {
    font-size: 2rem;
    margin-top: 1em;
    margin-bottom: 0.1rem;
}

.project_tag {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    font-weight: normal;
}


.main_section {
    line-height: 1.5;
    word-wrap: break-word;
    font-size: 1.1rem;
}

.diploma {;
    color: white;
    padding: 1.5rem 0;
}

.mt-2 {
    margin-top: 2rem;
}

.text_align {
    width: 50%;
    margin: 0 auto;
    line-height: 1.5;
    word-wrap: break-word;
    font-size: 1.1rem;
    color: white;
}

.prototype_text {
    width: 100%;
    margin: 0 auto;
    line-height: 1.5;
    word-wrap: break-word;
    font-size: 1.1rem;
    color: white;
}

.sources {
    padding: 2rem 6rem;
}

.btn-black {
    color: black !important;
}

.btn-black:hover {
    color: black !important;
}

.button {
    text-decoration: none;
    position: relative;
    padding: 0.2em 1em;
    border: none;
    background-color: transparent;
    cursor: pointer;
    outline: none;
    font-size: 18px;
    text-align: center;
}

.button:hover {
    color: white;
}

.button_bigger {
    padding: 1em 1.5em;
}

.mb-2 {
    margin-bottom: 2rem;
}

.mb-5 {
    margin-bottom: 5rem;
}

.pb-2 {
    padding-bottom: 2rem;
}

.bb {
    border-bottom: 1px dashed gray;
}


.button_colored:hover {
    background-color: #e8e8e8;
    color: black;
}

.button_colored::after, .button_colored::before {
    content: '';
    display: block;
    position: absolute;
    width: 20%;
    height: 20%;
    border: 2px solid;
    transition: all 0.6s ease;
    border-radius: 2px;
}

.button_colored::after {
    bottom: 0;
    right: 0;
    border-top-color: transparent;
    border-left-color: transparent;
    border-bottom-color: black;
}

.button_colored::before {
    top: 0;
    left: 0;
    border-bottom-color: transparent;
    border-right-color: transparent;
    border-top-color: black;
    border-left-color: black;
}

.button_colored:hover:after, .button_colored:hover:before {
    width: 100%;
    height: 100%;
}

.button_colored_navigation {
    color: black;
}

.button_colored_navigation:after, .button_colored_navigation:before {
    content: '';
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: black;
    transition: all 0.3s ease;
    transform: scale(0.85);
}

.button_colored_navigation:hover:before {
    top: 0;
    transform: scale(1);
}

.button_colored_navigation:hover:after {
    transform: scale(1);
}

.active, a:hover {
    color: lightblue !important;
}

.flex_sources {
    display: flex;
    justify-content: space-evenly;
    flex-wrap: wrap;
    align-items: center;
}

.flex_sources div {
    flex: 0 0 33.333333%;
    text-align: center;
}

.flex_sources_four {
    display: grid;
    grid-template-rows: 1fr 1fr 1fr;
    grid-auto-columns: 1fr;
    grid-auto-flow: column;
    flex-wrap: wrap;
    flex-direction: column;
    align-items: stretch;
}

.flex_sources_four div {

    /*padding-bottom: 2em;*/
}

.flex_sources_four div p {

    text-overflow: ellipsis;
}

.flex_sources div p {
}

.about {
    padding: 2rem 6rem;
}

.prototype {
    color: white;
    padding: 2rem 6rem;
}

.prototype-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.slideshow-section {
    color: white;
    padding: 2rem 6rem;
}

.button_transparent_background:hover {
    background-color: transparent;
}

.fade_in {
    animation: fadein 4s;
}

.center_title {
    text-align: center;
    font-size: 2.5em;
    color: white;
}


footer {
    background-color: #1a1a1a;
    background-image: linear-gradient(to right, #333333, black);
    position: fixed;
    color: white;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    z-index: -1;
    display: flex;
    flex-direction: column;
    text-align: center;
    justify-content: center;
    align-items: center;
}

.mt-4{
    padding-top: 4rem;
}

.fontSize24{
    font-size: 24px;
}

.underline{
    text-decoration: underline;
}

.slideshow {
    margin-top: 3rem;
    grid-area: slideshow;
    display: flex !important;
}

.slideshow div {
    height: inherit !important;
}

.img_property {
    width: 100%;
}

.img_property img {
    object-fit: contain;
    width: 100%;
    max-height: 500px;
}

.centered {
    display: block;
    margin: 0 auto;
}

.bigger_text {
    font-size: 24px;
}

.button_white {
    color: white !important;
}

.name_work {
    font-size: 3em;
}

li form button {
    font-size: 14px;
    background: none;
    border: none;
    margin: 0;
    padding-left: 2.5em;
    cursor: pointer;
}

li form button:hover {
    color: silver;
}

.source_hidden {
    display: none;
}

.cursor_show {
    cursor: pointer;
}

.cursor_show:hover {
    cursor: pointer;
}

.technology {
    color: white;
    background-color: #121214;
    padding: 5em 6rem;
}

.titleName {
    font-size: 2.5em;
}

.padding_left {
    padding-left: 1em;
}

.button_ellipse {
    font-size: 1.2em;
    background-color: white;
    padding: 20px 40px;
    border-radius: 4px;
    color: black;
    margin: 0;
    border: 0;
}


.button_colored_white::after {
    border-top-color: transparent;
    border-left-color: transparent;
    border-bottom-color: white;
}

.button_colored_white::before {
    border-top-color: white;
    border-left-color: white;
}

.navigation_settings_scroll {
    top: 0;
    width: 100%;
    position: fixed;
    background-color: #787878 /*#e8e8e8*/;
    padding: 0;
}

.navigation_settings_scroll:hover {
    top: 0;
    width: 100%;
    position: fixed;
    background-color: #787878 /*#e8e8e8*/;
    padding: 0;
    color: white;
}

.nav_logo_scroll img {
    padding-top: 0.4em;
    width: 25%;
    height: 25%;
}


.plan {
    min-height: 100%;
    margin: 0;
    height: 100%;
}

.plan {
    position: relative;
    min-height: 100vh;
    height: 100%;
    margin: 0;
}

.button_image {
    background-color: transparent;
    padding-right: 3em;
    padding-bottom: 50px;
    margin: 0;
    border: 0;
    color: white;
    position: relative;

}

.button_image p {
    padding: 0;
    margin: 0;
    border: 0;
}

.button_image:hover {
    position: relative;
    color: silver;
}

#navMobileButton {
    display: none;
}

#mobileBar {
    display: none;
}

span {
    position: absolute;
    transform: translateX(-50%);
    bottom: 1px;
    width: 100%;
    left: 35%;
}

@media all and (max-width: 800px) {
    .flex_sources div {
        flex: 0 0 100%;
    }

    nav {
        display: none;
        border: 0;
        padding: 0;
        margin: 0;
    }

    #navMobileButton {
        z-index: 9999;
        display: block;
        cursor: pointer;
        position: fixed;
        top: 0;
        right: 0;
        margin: 0;
        padding: 0;
    }

    iframe {
        display: none;
    }

    .prototype div iframe {
        width: 100%;
        height: 100%;
    }

    .nav_mobile {
        display: block;
        position: fixed;
        top: 0;
        margin: 0;
        padding: 0;
    }

    .nav_mobile ul {
        background-color: #f1f1f1;
        margin: 0;
        padding: 0;
    }

    .nav_mobile ul li form {
        display: block;
        color: #000;
        padding: 6px;
        text-decoration: none;
    }

    .nav_table {
        display: block;
        float: left;
    }

    .nav_logo {
        display: none;
    }

}