@import url('https://fonts.googleapis.com/css2?family=Bree+Serif&family=Open+Sans:wght@400;500;600;700&display=swap');


*{
    padding: 0;
    margin: 0 ;
    font-family: 'Open Sans', sans-serif;
}



nav{
    background-color: #2722bb;
    box-shadow: 0 0 7px -2px;
}

nav ul{
    text-align: center;
}

a{
    text-decoration: none;
    color: #242424;
}

nav ul li{
    display: inline-block;
    padding: 20px 30px;
    color: #242424;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 15px;
    font-family: 'Bree Serif', serif;
    
}

nav ul li:hover{
    background-color: #b5b5b5;
}

.viewer{
    max-width: 520px;
    margin: 0 auto;
    padding: 0 30px;
    margin-top: 10px;
}

h1{
    font-family: 'Bree Serif', serif;
    text-align: center;
    padding: 0 10px;
}

h2{
    text-align: center;
}

.popis > h1{
    text-align: center;
    font-size: 35px;
    padding: 0 10px;
    font-family: 'Bree Serif', serif;
    
}

.popis p{
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
    text-align: center;
    font-family: 'Bree Serif', serif;
}

.titulek{
    margin-top: 1em;
    text-align: center;
    margin-bottom: 1em;
}

.titulek span{
    font-size: 14px;
}

/*DEMO*/
.wrapper > h1{
    margin-top: 1em;
    font-size: 25px;
    margin-bottom: 1em;
}

.banner{
    text-align: center;
    background-color: #fef24e;
    padding: 1.5em 0;
    display: flex;
    flex-flow: row wrap;
    justify-content: center;
}

.banner img{
    width: 200px;
    border-radius: 20px;
    box-shadow: 0 0 20px -10px;
}

.card{
    padding: 10px 10px;
}

.card:hover{
    transition: all .2s ease-in-out;
    transform: scale(1.1);
}

section{
    padding: 1em;
    margin-bottom: 2em;
}

section > p {
    max-width: 800px;
    margin: 0 auto;
    padding: 1em;
}

section p > a{
    color: blue;
    text-decoration: underline;
}

.videoviewer{
    text-align: center;
}

.videoviewer > video {
    width: 300px;
    height: 100%;
}

.fotografie {
    display: none
}

.fotografie img {
    width: 100%;
    vertical-align: middle;
}


.carousel {
    max-width: 550px;
    position: relative;
    margin: auto;
}


.arrow-right,
.arrow-left {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    margin-top: -22px;
    color: black;
    font-weight: bold;
    font-size: 18px;
    border-radius: 0 3px 3px 0;
    user-select: none;
}


.arrow-left {
    right: 0;
    border-radius: 3px 0 0 3px;
}

/*VIDEO*/
.iframe-container{
    text-align: center;   
}


iframe{
    width: 230px;
    height: 150px;
}


.videonavod{
    max-width: 100px;
}


@media screen and (max-width:758px) and (min-width:380px){
    .viewer{
        margin-top: 10px;
    }

    .popis > h1{
        margin-top: 0.3em;
        font-size: 40px; 
    }

    .titulek{
        margin-top: 4em;
    }

    .card{
        margin: 0.3em 1em;
    }

    .videoviewer > video {
        width: 300px;
    }

    iframe{
        width: 370px;
        height: 205px;
    }
}

@media screen and (max-width:1024px) and (min-width:759px){
    nav ul li{
        padding: 20px 50px;
    }
    
    .viewer{
        padding: 0;
    }

    .popis > h1{
        margin-top: 0.5em;
        font-size: 45px;
        letter-spacing: 1px;
    }

    .titulek{
        margin-top: 7em;
    }

    .card{
        margin: 0.5em 2em;
    }

    .videoviewer > video {
        width: 400px;
    }

    iframe{
        width: 576px;
        height: 324px;
    }
}

@media screen and (min-width:1025px){
    nav ul li{
        padding: 20px 70px;
    }
    
    .viewer{
        padding: 0;
    }

    .popis > h1{
        margin-top: 0.5em;
        font-size: 50px;
        letter-spacing: 1px;
    }

    .titulek{
        margin-top: 7em;
    }

    .popis p{
        margin-top: 0.5em;
    }

    body{
        background: radial-gradient(circle, rgba(255,255,255,1) 0%, rgba(255,255,255,1) 69%, rgba(236,236,236,1) 100%);
    }

    .card{
        margin: 0.5em 3em;
    }

    .banner img{
        width: 250px;
    }

    .videoviewer > video {
        width: 500px;
    }

    iframe{
        width: 1000px;
        height: 563px;
    }
}