html {
    scroll-behavior: smooth;
}

body{
    overflow-x:hidden;
    font-family: 'Questrial', sans-serif;
    font-size: 18px;
}

/* Navigation + header */
nav {
    margin: 15px 0 0 0;
    vertical-align: bottom;
    display: block; 
}

nav ul {
    padding: 0;
    margin: 0;
}

nav ul li {
    display: inline-block;
    vertical-align: bottom;
    width: 100%;
}

#logo {
    width: 100%;
    text-align: center;
}

#erb {
    display: none;
    visibility: hidden;
}

#main_menu {
    color: #009fe3;
    font-size: 15px;
    text-transform: uppercase;
    width: 100%;
    text-align: center;
}

#main_menu ul li {
    display: inline;
    margin: 0 15px;
}

#main_menu a {
    color: #009fe3;
}

#mini_menu {
    display: none;
    visibility: hidden;
}

@media (min-width:768px){
    #main_menu {
        width: 600px;
        color: #009fe3;
        font-size: 15px;
        text-transform: uppercase;
        text-align: right;
        margin: 0 30px;
    }
    
    #main_menu ul {
        margin: 0;
    }

    #mini_menu {
        width: 100%;
        display: table;
        visibility: visible;
        margin: 0;
        padding: 10px 0;
        background-color: #4d4d4d;
        color: #fff;
        text-transform: uppercase;
        font-size: 9px;
        text-align: center;
    }
    
    #mini_menu ul {
        margin: 0;
    }

    #mini_menu a {
        color: #fff;
        margin: 0 10px;
    }

    #mini_menu ul li {
        display: inline;
    }

    #erb {
        display: inline;
        visibility: visible;
    }

    #logo {
        margin-left: 80px;
    }

    nav {
        display: table;
    }
    
    nav ul {
        margin: 0 0 20px 0;
    }

    nav ul li {
        display: inline-block;
        vertical-align: bottom;
        width: auto;
    }
}

/* main content */
#sluzby {
    text-align: center;
    padding: 30px 0;
}

#sluzby ul {
    list-style: none;
    padding: 0;
}

#sluzby ul li {
    display: inline-block;
    margin: 10px 0;
}

#sluzby ul li a {
    color: black;
    display: block;
}

@media (min-width:768px){
    #sluzby {
        text-align: center;
        padding: 30px 100px;
    }

    #sluzby ul li {
        display: inline-block;
        margin: 0 15px;
    }
}

.service {
    width: 125px;
    box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2), 0 6px 20px 0 rgba(0, 0, 0, 0.19);
    padding-bottom: 15px;
}

.service img {
    width: 100%;
}

.service h2{
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
    color: #000;
    margin-top: 15px;
}

.service_image img {
    margin: 0;
    max-width: 100%;
}

.text_blue {
    background-color: #dff2fd;
}

.text_blue, .text_white {
    color: #000;
    padding: 30px 15px;
    text-align: center;
    margin: 0 auto;
    font-size: 16px;
}

.text_blue h2, .text_white h2 {
    font-size: 14px;
    font-weight: bold;
    text-transform: uppercase;
}

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

@media (min-width:768px){
    .text_blue, .text_white {
        color: #000;
        padding: 30px 100px;
        text-align: center;
        margin: 0 auto;
        font-size: 16px;
    }
}

/* footer */
#footer{
    background-color: #4d4d4d;
    color: #fff;
    font-size: 10.5px;
    text-transform: uppercase;
    padding: 20px;
    width: 100%;
    text-align: center;
}

#footer h2 {
    color: #009fe3;
    font-size: 16px;
}

#footer a {
    color: #fff;

}