* {
    box-sizing: border-box;
}

html {
    font-family: sans-serif;
    background-color: #232323;
    color: #EEE;
}

html, body {
    margin: 0;
    padding: 0;
    min-width: 100%;
    min-height: 100%;
}

header {
    display: flex;
    justify-content: space-between;
    position: sticky;
    top: 0;
    left: 0;
    background-color: #232323;
}

h1 {
    font-size: 1em;
    margin: 0.5em;
}

.total {
    margin: 0.5em;
    font-weight: bold;
}

ul {
    font-size: 0.9em;
    padding: 0;
    margin: 0;
}

li {
    list-style: none;
}

ul.areas > li {
    margin: 0.5em;
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 0.4em;
    transition:
        background-color 0.15s linear, 
        box-shadow 0.15s linear;
    display: flex;
    flex-direction: column;
    padding-bottom: 0.3em;
}

ul.areas > li:hover {
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.6);
    background-color: rgba(0, 0, 0, 0.3);
}

.area {
    display: flex;
    justify-content: space-between;
    padding: 0.5em 0.5em 0.2em;
}

.area .name {
    font-weight: bold;
}

ul.areas ul > li {
    display: flex;
    align-items: center;
    padding: 0 0.5em;
}

ul.areas ul > li:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

label, input {
    cursor: pointer;
}

label {
    flex-grow: 1;
    display: flex;
    justify-content: space-between;
    color: #999;
    padding: 0.2em 0;
}

input {
    margin-right: 0.5em;
}

input:checked ~ label {
    color: white;
}