* {
    box-sizing: border-box;
}

*:focus {
    outline: none;
}

.user {
    word-break: break-all;
}

/*.disabled {*/
/*    opacity: 0.5;*/
/*    pointer-events: none;*/
/*}*/

body {
    background: #1f1f1f;
    color: white;
    height: 100vh;
    margin: 0;
    padding: 1.5em;
    font-family: 'Roboto';
    font-size: 16px;
}

@media (max-width: 992px) {
    body {
        font-size: 14px;
        padding: 0;
    }
}

h1 {
    font-size: 4.3rem;
    margin-bottom: 5px;
}

@media (max-width: 992px) {
    h1 {
        font-size: 22px;
    }
}

.input-wrapper {
    display: inline-block;
    position: relative;
}

input {
    background: transparent;
    border: 0;
    padding: 0.5em 0.5em 0.2em 0.5em;
    font-size: 18px;
    font-family: 'Roboto';
    color: white;
    text-align: center;
    font-weight: 100;
    margin-bottom: 1.5em;
}

input::placeholder {
    color: white;
}

.input-after {
    width: 100%;
    max-width: 0px;
    transition: max-width 0.4s;
    right: 0;
    left: auto;
    position: absolute;
    background: white;
    bottom: 18px;
    height: 2px;
}

input:focus+.input-after {
    max-width: 999px;
    transition: max-width 0.4s;
    left: 0;
    right: auto;
}

button {
    background: transparent;
    color: white;
    padding: 1em 2em;
    border: 1px solid white;
    cursor: pointer;
    position: relative;
}

button:hover {
    color: black;
    transition: 0.4s all;
}

button:before {
    content: '';
    height: 100%;
    width: 100%;
    right: 0;
    left: auto;
    width: 100%;
    background: white;
    position: absolute;
    top: 0;
    max-width: 0px;
    transition: 0.2s max-width;
    z-index: -1;
}

button:hover:before {
    max-width: 200px;
    transition: 0.2s max-width;
    left: 0;
    right: auto;
}

.music-play {
    z-index: 2;
    position: absolute;
    right: 10px;
    top: 10px;
    cursor: pointer;
}