tabs/resources/style/index.css

body {
    display: flex;
    flex-direction: row;
}

#service-selector {
    flex-grow: 1;
    display: block;
    margin: 0;
    padding: 0;
}

*:focus {
    outline-color: rgb(118, 93, 176);
}

#navigation button {
    display: block;
    width: 100%;
    padding: 16px;
    margin: 0;
    height: 72px;

    color: #fff;
    border: 0;
    background: transparent;

    cursor: pointer;
}

#navigation button img {
    width: 32px;
}

#navigation button i {
    font-size: 32px;
}

#service-selector li {
    position: relative;
}

#service-selector li button,
#navigation > button {
    border-radius: 0;
}

#service-selector li.active button {
    position: relative;
    background-color: #fff2;
}

#service-selector li.active button::before {
    content: "";
    display: block;
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    border-left: 4px solid #ffffff2e;
}

#service-selector li.loaded::after {
    content: "";
    position: absolute;
    top: 50%;
    right: 2px;
    transform: translateY(-50%);
    width: 4px;
    height: 4px;

    background-color: #fff;
    border-radius: 100%;
}

#navigation button:hover {
    background-color: #fff3;
}

#history {
    padding: 8px;
}

#history button {
    display: inline;
    width: 24px;
    height: 24px;
    padding: initial;
    font-size: 12px;

    background: #fff1;
    border: 1px solid #fff4;
    border-radius: 72px;

    color: #fff;
    cursor: pointer;
}

#history button i {
    font-size: inherit;
}

#history button.disabled {
    color: #888;
    border: transparent;
    background: transparent;
    cursor: initial;
}

#history button:focus,
#history button:hover {
    outline: none;
    border-color: #fff9;
}

#history button:hover:not(.disabled) {
    outline: none;
    background-color: #fff2;
}

#history button:active:not(.disabled) {
    background-color: #fff4;
}

#navigation #add-button:not(:hover) {
    opacity: 0.75;
}

#services {
    position: relative;
    flex-grow: 1;
}

#services > *:not(.loader) {
    height: 100%;
}

#services > :not(.active):not(.loader) {
    display: none;
}

#services > .loader {
    width: 64px;
    height: 64px;

    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: -1;
}