* {
	box-sizing: border-box;
}

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

body {
    display: flex;
    flex-direction: column;
	justify-content: center;
	background-color: rgb(0, 211, 255);
	align-items: stretch;
	text-align: center;
	font-family: 'Open Sans', sans-serif;
}

a { text-decoration: none !important; }

header {
    text-align: center;
    padding: 0;
    background: linear-gradient(180deg, rgba(0,117,255,1) 0%, rgba(0,211,255,1) 100%);
}

header img {
    display: block;
    margin: 20px auto 0 auto;
    max-width: 480px;
}

main {
	background-color: white;
	width: 960px;
	border: solid 1px darkslategray;
	border-radius: 20px;
	padding: 20px;
	flex: 1;
	margin: auto;
}

h1, #gdpr { margin: 0; }

#gdpr {
    color: gray;
    border: solid 1px rgb(0,117,255);
    border-radius: 20px;
    padding: 15px;
    font-size: 14px;
    background-color: AliceBlue;
}

footer {
    background-color: rgb(0,117,255);
    padding: 10px;
    border-radius: 50px;
    color: white;
    margin: 20px;
}

footer a {
    display: inline-block;
    padding: 2px 10px;
    margin-left: 20px;
    border-radius: 20px;
    background-color: white;
    color: rgb(0,117,255);
    font-size: smaller;
}

footer a:hover {
    background-color: navy;
    color: white;
}

.mobile {
    display: none;
}

#curtain {
    background:
        linear-gradient(red, transparent),
        linear-gradient(to top left, lime, transparent),
        linear-gradient(to top right, blue, transparent);
    background-blend-mode: screen;
    position: fixed;
    inset: 0;
    display: none;
    justify-content: center;
    align-items: center;
}

#info {
    background-color: white;
    border: solid 1px darkslategray;
    border-radius: 20px;
    text-align: left;
    padding: 20px;
    line-height: 1.8;
    position: relative;
}

.info {
    color: orangered;
}

#info button {
    position: absolute;
    width: 50px;
    height: 50px;
    top: -25px;
    right: 25px;
    font-size: 40px;
    font-weight: bold;
    border: solid 3px red;
    border-radius: 25px;
    background-color: white;
    color: red;
    cursor: pointer;
}

#info button:hover {
    background-color: red;
    color: white;
    border: solid 3px darkslategray;
}

@media only screen and (max-width: 960px) {

    header img {
        width: 100%;
        height: auto;
    }

    main {
        width: 100%;
    	overflow: scroll;
    	border-radius: 0;
    }

    footer {
        margin: 0;
        border-radius: 0;
        text-align: left;
        font-size: 12px;
    }

    footer a {
        float: right;
        font-size: 16px;
    }

    .mobile {
        display: inline;
    }

    #info {
        position: fixed;
        inset: 0;
        overflow-y: scroll;
        border-radius: 0;
    }

    #info button {
        position: fixed;
        top: 10px;
        right: 10px;
        font-size: 32px;
    }

    #info ul {
        padding-left: 10px;
    }

}