body, html {
    margin: 0;
    padding: 0;
    font-size: 20px;
    width: 100%;

    --green-color: green;
    --light-green-color: #27b427;
    --red-color: #e72e2e;
    --dark-red-color: #ba1818;
    --light-dark-red-color: #d11b1b;
    --blue-color: #43a6ee;
    --very-light-grey-color: #eeeeee;
    --light-grey-color: #cdcaca;
    --dark-grey-color: #969595;
}

.h2 {
    font-size: 20px;
}

.header {
    display: block;
    margin-top: 20px;
    height: 100px;
    text-align: center;
    font-size: 50px;
}

.stop-record {
    display: block;
    cursor: pointer;
    position: fixed;
    right: 20px;
    top: 20px;
    height: 50px;
    border-radius: 25px;
    background-color: var(--dark-red-color);
    color: #FFF;
    font-size: 20px;
    line-height: 50px;
    padding: 0 10px;

    box-shadow: none;
    border: 0;
    transition: .3s;
}

.stop-record.hidden {
    display: none;
 }

.stop-record:hover {
    background-color: var(--light-dark-red-color);
}

.stop-record i {
    height: 100%;
    vertical-align: middle;
    margin-top: -8px;
}

.stop-record span {
    display: inline-block;
    overflow: hidden;
    margin-left: 10px;
}

.actions {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    height: 100%;
}

.actions button {
    height: 110px;
    width: 110px;
    margin: 20px;
    font-size: 20px;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: 55px;
    background-color: var(--green-color);
    color: #FFF;
    transition: .3s;
}

.actions button small {
    font-size: 12px;
}

.actions button:hover, .actions button.active{
    background-color: var(--light-green-color);
}

.actions #record.active {
    background-color: var(--blue-color);
}

.actions button::-moz-focus-inner {
    border: 0;
}

.actions button.loading {
    background-color: var(--light-grey-color);
    cursor: default;
}

.notes {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 960px;
    margin: 20px auto 20px auto;
    padding: 0;
}

.notes li {
    cursor: pointer;
    display: block;
    margin: 10px;
    padding: 0;
    width: 20px;
    height: 20px;
    border-radius: 10px;
    list-style-type: none;
    background-color: var(--light-grey-color);
    transition: .3s;
}

.notes li:hover {
    background-color: var(--dark-grey-color);
}

.notes li.active {
    background-color: var(--blue-color);
    width: 22px;
    height: 22px;
    border-radius: 11px;
    margin: 8px;
}

.notes li.valid {
    background-color: var(--light-green-color);
    width: 22px;
    height: 22px;
    border-radius: 11px;
    margin: 8px;
}

.notes li.wrong {
    background-color: var(--red-color);
}

.playing {
    width: 960px;
    margin: 20px auto 20px auto;
    height: 20px;
    font-size: 20px;
    text-align: center;
}

.transcript{
    width: 960px;
    height: 200px;
    margin: 10px auto;
    padding: 0;
}

.transcript.hidden{
    display: none;
}


.settings, .description, .possible-notes{
    margin: 50px auto;
    padding: 20px;
    background-color: var(--very-light-grey-color);
    width: 960px;
}

.settings .option {
    margin: 10px 0;
}

.settings .option label {
    line-height: 30px;
    vertical-align: middle;
}

.settings .option input {
    width: 100px;
    height: 30px;
}

.settings .option input[type="checkbox"]{
    height: 15px;
    width: 15px;
}

.possible-notes .button{
    border: 1px solid var(--dark-grey-color);
    background-color: var(--very-light-grey-color);
    border-radius: 3px;
    cursor: pointer;
    outline: none;
    margin-right: 5px;
    font-size: 17px;
    padding: 5px 20px;
    transition: .3s;
}

.possible-notes .button.active{
    background-color: var(--blue-color);
}

.possible-notes .button:hover{
    background-color: var(--light-grey-color);
}

.possible-notes .button.active:hover{
    background-color: var(--blue-color);
}

@media screen and (max-width: 960px) {
    .settings, .description, .transcript, .notes, .possible-notes {
        width: auto;
        margin-left: 10px;
        margin-right: 10px;
    }
}