.hidden {
    display: none;
}

body {
    color: #cccccc;
    font-family: "Source Code Pro", monospace;
    font-size: 14pt;
    min-width: 60em;
    background-color: #0f0f23;
}

article {
    width: 45em;
}

article em {
    color: #ffffff;
    font-style: normal;
    text-shadow: 0 0 5px #ffffff;
}

article .star {
    color: #ffff00;
}

article h2 {
    color: #ffffff;
    font-size: 1em;
    font-weight: normal;
}

pre, code {
    font-family: "Source Code Pro", monospace;
}

.problem-list {
    padding-left: 32px;
}

code::before {
    z-index: -1;
    content: "";
    position: absolute;
    display: block;
    left: -2px;
    right: -2px;
    top: 3px;
    bottom: 0px;
    border: 1px solid #333340;
    background: #10101a;
}

code {
    position: relative;
    display: inline-block;
    margin: 0;
    padding: 0;
}

input, textarea {
    background: transparent;
    color: inherit;
    border: 1px solid #666666;
    background: #10101a;
    padding: 0 2px;
    font-family: inherit;
    font-size: inherit;
    margin: 0;
}

.link {
    color: #009900;
}

#submit {
    padding: 8px;
}

.link:hover {
    cursor: pointer;
    color: #99ff99;
}

a {
    text-decoration: none;
    color: #009900;
    outline: 0;
}

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

li::before {
    content: "\00a0\00a0-\00a0";
    position: absolute;
    top: 0;
    left: 0;
}

li {
    padding-left: 2.5em;
    position: relative;
}

.puzzle-input {
	border: 1px solid #999999;
	background: #333333;
	color: #ffffff;
	text-shadow: 0 0 5px #ffffff;
}