* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html, body {
    font-family: "Open Sans", Arial, sans-serif;
    color: black;
    font-size: 14px;
    line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
    font-family: Montserrat, Arial, sans-serif;
    color: #002f5f;
    font-size: 18px;
}

main.container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    text-align: center;
}

header {
    margin-bottom: 60px;
}

footer {
    margin-top: 30px;
}

address {
    font-style: normal;
}

a.invis {
    color: black;
    text-decoration: none;
}

a.button1 {
    color: #002492;
    text-decoration: none;
    text-transform: uppercase;
    padding: 7px;
    border: 1px solid #002492;
    border-radius: 3px;
    margin-left: 20px;
    margin-right: 20px;
}

a.button1:hover {
    color: black;
    border-color: black;
}

img.logo {
    width: 100px;
    height: auto;
}

h2 {
    margin-bottom: 30px;
}

.odstavec1, .odstavec2 {
    margin: 0;
    margin-bottom: 30px;
}

.popis {
    max-width: 600px;
    margin: 0 auto;
}

.contact-info {
    margin-top: 20px;
}

address p {
    margin: 10px 0;
}

@media (max-width: 900px) {
    a.button1 {
        display: block;
    }
}

@media (min-width: 800px) {
    img.logo {
        width: 120px;
    }
}