html {
    position: relative;
    min-height: 100%;
}

body {
    font-family: 'Space Grotesk', Helvetica, sans-serif;
}

h1, h2 {
    letter-spacing: 2px;
}

main {
    padding-top: 3.5rem;
    margin-bottom: 100px;
}

.footer {
    position: absolute;
    bottom: 0;
    z-index: -1;
    width: 100%;
    height: 60px;
    line-height: 60px;
}

.jumbotron {
    border-radius: 0;
    text-align: center;
}

.btn {
    font-weight: 700;
    letter-spacing: 1px;
    line-height: 20px;
    white-space: nowrap;
}

.form-control, input.challenge-input {
    padding: 0.8em;
    height: auto;
    color: #aaa;
    font-family: Helvetica, Arial, sans-serif;
}

.custom-select {
    color: inherit;
}

.table thead td {
    border-top: none;
}