.main-content {
    margin-left: 250px;
}

.sidebar-menu {
    background-color: #f5f5f5;
    border-right: 1px solid #ccc;
    position: fixed;
    overflow-y: auto;
    width: 250px;
    height: 100%;
}

// General list styles for the sidebar-menu.
ul {
    padding: 0;
    margin: 0;

    li {
        list-style: none;
        padding: 0;
    }
}

.sidebar {
    &__level-1 {
        padding: 0.5rem 1rem;
        font-size: 2rem;
        line-height: 3rem;

        &--item {
            margin-top: 0;

            &:nth-child(1) {
                margin: 0;
            }
        }

        .fa-chevron-up,
        .fa-chevron-down {
            margin-right: 1rem;
            font-size: 1.5rem;
            position: relative;
            top: 0.5rem;
            display: none;
        }

        &:hover {
            .fa-chevron-up,
            .fa-chevron-down {
                display: inline-block;
            }
        }
    }

    // General spacing of level-1 and level-2 elements.
    &__level-1,
    &__level-2 {
        padding-left: 15px;
    }

    &__level-2 {
        margin-left: 15px;

        &--item {
            padding: 0 20px 0 0;

            &.active {
                background-color: #555;
                color: #fff;

                .fa-star {
                    color: #fff;
                }

                &:hover {
                    background-color: #555;
                }
            }

            // General "right side" icon theming.
            .fa.pull-right {
                position: relative;
                top: 2px;
            }

            .fa-star {
                color: #666;
            }
        }
    }

    // General hover over menu items.
    &__level-1,
    &__level-2--item {
        &:hover {
            cursor: pointer;
            background-color: rgba(0, 0, 0, 0.05);
        }
    }
}

.menu--bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;

    .sidebar {
        &__level-1 {
            background-color: transparent;
            padding: 1rem;
        }
    }
}

.pane-title {
    margin-bottom: 1em;

    &__name,
    &__abbrev {
        &[contenteditable=true]{
            border: none;
            border-bottom: 2px dotted #999;
            padding: 0 0.5rem;
            margin: 0 0.25rem;

            &.active {
                box-shadow: 0 0 0 1px #ccc, 0 0 5px 0 #ccc;
                border-color: transparent;
            }
        }
    }
}

.keymap {
    &__is-default {
        &.fa-star {
            color: #333;
        }

        &.fa-star-o {
            color: #333;
        }

        &:hover {
            color: #555;
            cursor: pointer;
        }
    }

    &__remove {
        font-size: 0.75em;
        top: 0.3em;

        &:hover {
            cursor: pointer;
            color: #900;
        }
    }
}

.notification {
    padding: 1rem 1.5rem;
    box-shadow: 0 0 0 1px #000;
    border-radius: 0.5rem;
    position: absolute;
    top: 2rem;
    right: 2rem;
    z-index: 10000;
    background-color: #333;
    color: #eee;

    &__action {
        margin-left: 1rem;
        margin-right: 1rem;
        color: #5bc0de;
        text-transform: uppercase;
        font-weight: bold;

        &:focus,
        &:active,
        &:hover {
            text-decoration: none;
            color: #5bc0de;
        }
    }

    &__dismiss {
        position: relative;
        bottom: 1px;
        color: #ccc;

        &:hover {
            cursor: pointer;
            color: #fff;
        }
    }
}

.uhk {
    &__layer-switcher {
        &--wrapper {
            position: relative;

            &:before {
                content: attr(data-title);
                display: inline-block;
                position: absolute;
                bottom: -0.3em;
                right: 100%;
                font-size: 2.4rem;
                padding-right: 0.25em;
                margin: 0;
            }
        }
    }
}

.keyboard-slider {
    position: relative;
    overflow: hidden;
    width: 100%;
    height: auto;

    .uhk__layer-wrapper {
        width: 100%;
        height: auto;
        text-align: center;
        position: absolute;
        left: 100%;

        &.current {
            left: 0;
        }

        .uhk {
            max-width: 100%;
            width: 98%;
        }
    }
}

.key-editor__popup {
    border: none;
    width: 0;
    height: 0;

    // Static setting for quick portotyping.
    position: absolute;
    top: 215px;
    left: 50%;
    margin-left: -310px;
}

svg.uhk {
    rect {
        &.active {
            //TODO: use a color variable instead of the declaration below.
            fill: #337ab7;
        }
    }
}

/* GitHub ribbon */
.github-fork-ribbon {
    background-color: #a00;
    overflow: hidden;
    white-space: nowrap;
    position: fixed;
    right: -50px;
    bottom: 40px;
    z-index: 999999;
    /* stylelint-disable indentation */
     -webkit-transform: rotate(-45deg);
        -moz-transform: rotate(-45deg);
         -ms-transform: rotate(-45deg);
          -o-transform: rotate(-45deg);
             transform: rotate(-45deg);
    -webkit-box-shadow: 0 0 10px #888;
       -moz-box-shadow: 0 0 10px #888;
            box-shadow: 0 0 10px #888;
    /* stylelint-enable indentation */

    a {
        border: 1px solid #faa;
        color: #fff;
        display: block;
        font: bold 81.25% 'Helvetica Neue', Helvetica, Arial, sans-serif;
        margin: 1px 0;
        padding: 10px 50px;
        text-align: center;
        text-decoration: none;
        text-shadow: 0 0 5px #444;
    }
}