:root {
    --gradient-one: #262626;
    --gradient-two: #111111;
    --accent-color: #9a3e4a;
    --accent-color-dark: rgba(203, 80, 98, 0.5);
}

@keyframes swipe {
    0% {
        left: 0%;
        right: 0%;
    }
    49% {
        left: 0%;
        right: 100%;
    }
    50% {
        left: 100%;
        right: 0%;
    }
    100% {
        left: 0%;
        right: 0%;
    }
}

body {
    margin: 0px;
    padding: 0px;
    width: 100vw;
    height: 100vh;
    display: flex;
    color: var(--accent-color);
    align-items: center;
    flex-direction: column;
    justify-content: center;
    font-family: 'Abel', sans-serif;

    background: var(--gradient-one);
    background: -moz-linear-gradient(-45deg, var(--gradient-one) 0%, var(--gradient-two) 100%);
    background: -webkit-linear-gradient(-45deg, var(--gradient-one) 0%, var(--gradient-two) 100%);
    background: linear-gradient(135deg, var(--gradient-one) 0%, var(--gradient-two) 100%);
    filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#262626', endColorstr='#111111', GradientType=1);
}

a {
    text-decoration: none;
    color: var(--accent-color);
    position: relative;
}

a:after {
    content: " ";
    position: absolute;
    display: block;
    bottom: -1px;
    height: 2px;
    left: 0px;
    right: 0px;
    background-color: var(--accent-color);
}

a:hover:after {
    animation: swipe 500ms ease-in-out infinite;
}

body > form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

body > form > input {
    font-size: 16px;
    padding: 10px 15px;
    background-color: transparent;
    outline: 0;
    border-radius: 1px;
    color: white;
    text-transform: uppercase;
    text-align: center;
    font-family: 'Abel', sans-serif;
}

body > form > input[type="file"] {
    width: 222px;
    margin: 20px 0px;
    padding: 10px 0px;
}

body > form > input[type="text"] {
    font-size: 20px;
    border: 2px solid var(--accent-color);
    transition: all 150ms ease-in-out;
    position: relative;
}

body > form > input[type="text"]:focus {
    box-shadow: 0 0 0 0.2rem var(--accent-color-dark);
}

body > form > span {
    padding-top: 0;
    max-height: 0px;
    color: var(--accent-color);
    overflow: hidden;
    transition: all 150ms ease-in-out;
}

body > form > span.show {
    padding-top: 15px;
    max-height: 23px;
}

.mtl {
    margin-top: 30px;
}

.mt0 {
    margin-top: 0px !important;
}

.mt-l {
    margin-top: -10px !important;
}

button {
    font-size: 16px;
    padding: 10px 15px;
    border: 2px solid var(--accent-color);
    background-color: transparent;
    outline: 0;
    border-radius: 1px;
    color: white;
    text-transform: uppercase;
    text-align: center;
    font-family: 'Abel', sans-serif;
    transition: all 150ms ease-in-out;
    position: relative;
}

button:before {
    display: block;
    content: " ";
    position: absolute;
    top: 0px;
    left: 0px;
    right: 0px;
    bottom: 50px;
    background-color: var(--accent-color);
    z-index: -1;
    transition: all 150ms cubic-bezier(1, 2.09, 0.54, 0.28);
}

button:hover:before {
    bottom: 0px;
}

button:focus {
    box-shadow: 0 0 0 0.2rem var(--accent-color-dark);
}