:root {
    --bg-color: #eee;
    --parent-color: #444;
    --hover-color: #9999;
}

body {
    color: var(--bg-color);
    margin: 0;
    padding: 0;
}

section {
    max-width: 640px;
    margin: 0 auto 30px auto;
}

a {
    text-decoration: none;
}

li {
    padding: 0;
    list-style-type: none;
}

h3 {
    text-transform: uppercase;
    letter-spacing: 0.4em;
    color: var(--parent-color);
    text-align: center;
}


/**********  Classes **********/
.accordion {
    background-color: var(--hover-color);
    color: var(--parent-color);
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.accordion-control, .modal-open {
    text-transform: uppercase;
    letter-spacing: 0.2em;
    background-color: var(--parent-color);
    color: var(--bg-color);
    display: block;
    width: 100%;
    padding: 0.5em 0.5em 0.5em 0.7em;
    margin: 0;
    border-top: 0.1em solid var(--bg-color);
    cursor: pointer;
}

.accordion-control:hover, .modal-open:hover {
    background-color: var(--hover-color);
    transition: 0.2s;
}

.accordion-panel p {
    margin: 20px;
}

.modal {
    position: absolute;
    z-index: 1000;
    padding: 50px;
    background-color: var(--parent-color);
    border: 0.1em solid var(--bg-color);
}

.modal-content {
    background-color: var(--bg-color);
    text-align: center;
    clear: both;
    padding: 15px;
    border: 0.1em solid var(--bg-color);
}

.modal-message {
    display: inline-block;
    margin: 15px 0 15px 0;
    color:  var(--parent-color);
}

.modal-close {
    position: absolute;
    top:0;
    right:0.1em;
    cursor: pointer;
    background-color: #ed8e6c;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 5px 7px 5px 7px;
    margin: 10px 10px 0 0;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.modal-close:hover {
    background-color: #ed612f;
}