aside {
    grid-area: ctrl;
    display: grid;

    padding: 1em;

    button {
        width: 100%;
        font-size: 150%;
        margin: 0;
    }

    button.ready:enabled {
        &:hover {
            color: forestgreen;
            border-color: forestgreen;
        }

        &:active, &:focus {
            background: forestgreen;
            color: black;
            border-color: forestgreen;
        }
    }
}

.ready-btn:hover, .ready-btn:focus, .ready-btn:active {
    color: forestgreen;
}

.ready {
    color: forestgreen;
    transition-property: color, background;
    transition-duration: 0.25s;
    transition-timing-function: ease;
}