*,
*:before,
*:after {
    -moz-box-sizing: border-box;
    -webkit-box-sizing: border-box;
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    min-width: 320px;
}

body {
    min-height: 100vh;
    scroll-behavior: smooth;
    text-rendering: optimizeSpeed;
    line-height: 1.5;

    font-family:
        -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans,
        Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

html,
body,
h1,
h2,
h3,
h4,
h5,
h6,
p,
figure,
blockquote,
dl,
dd {
    margin: 0;
    padding: 0;
}

ul,
ol {
    list-style: none;
    padding: 0;
    margin: 0;
}

img,
picture {
    max-width: 100%;
    display: block;
}

input,
button,
textarea,
select {
    font: inherit;
}

button {
    background-color: transparent;
    border: none;
    cursor: pointer;
}

a {
    color: inherit;
}

p {
    white-space: pre-line;
    line-height: 1.35;
    margin: 0 0 var(--spacing-s);
    max-width: 58em;
}

h1,
h2 {
    margin: var(--spacing-m) 0 var(--spacing-s);
}

/* App */

body {
    background-color: #f9f9f9;
}

main {
    --spacing-xs: 0.25rem;
    --spacing-s: 0.5rem;
    --spacing-m: 1rem;
    --spacing-l: 2rem;
    --spacing-xl: 3rem;
    --border-width: 1px;
    --color-separator: #222;
    --color-label: #777;
    --color-text: #222;

    padding: 0 var(--spacing-m) calc(var(--spacing-xl) * 2);
    color: var(--color-text);

    display: flex;
    flex-direction: column;
    gap: var(--spacing-m);
}

main > header {
    margin-bottom: 0;
}

header p:last-child {
    margin-bottom: 0;
}

header > a {
    display: inline-block;
}

.notice {
    display: inline-block;
    border: 1px solid #f1ba3a;
    background-color: #f8dea0;
    padding: var(--spacing-xs);
    margin-bottom: var(--spacing-s);
}

.visualization {
    padding: var(--spacing-s) var(--spacing-m);
    margin: var(--spacing-l) 0 var(--spacing-s);
}

.visualization .elm-charts__container {
    width: 620px;
    height: 260px;
    margin: 0 0 var(--spacing-l) var(--spacing-xl);
}

.stats {
    font-size: 1.2em;

    padding: var(--spacing-m);
    border-width: var(--border-width);
    border-color: var(--color-separator);
    border-style: solid;

    display: flex;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-s);
    width: fit-content;
}

.stats__stat {
    padding: var(--spacing-s);
}

.stats__stat__label {
    color: var(--color-label);
}

.controls {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-m);
    flex-wrap: wrap;
}

.controls__control {
    padding: var(--spacing-s) var(--spacing-m) var(--spacing-m);
    border-width: var(--border-width);
    border-color: #e7e7e7;
    border-style: solid;
    background-color: #ffffff;
    min-width: 260px;

    align-self: flex-start;
    height: auto;
    flex-shrink: 0;
}

.controls__control__label {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-xs);
    color: var(--color-label);
}

.controls__control__input {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);

    padding-top: var(--spacing-s);
}

.controls__control__input input,
.controls__control__input select {
    width: 100%;
}

.controls__control__label__content {
    display: inline-flex;
}

.controls__control__label__details {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    font-size: 1rem;
    color: #6b7280;
    cursor: help;
    position: relative;
}

.controls__control__label__details:hover::before {
    content: attr(data-tooltip);
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: max-content;
    max-width: 250px;
    padding: var(--spacing-s);
    border-radius: 0.375rem;
    background-color: #374151;
    color: white;
    font-size: 0.75rem;
    z-index: 10;
}

.controls__control__legend {
    width: 320px;
}

@media screen and (max-width: 720px) {
    .stats {
        flex-direction: column;
        flex-wrap: nowrap;
        align-items: baseline;
    }

    .visualization {
        width: 100vw;
        overflow-y: scroll;
        margin: 0 calc(0rem - var(--spacing-m)) var(--spacing-m);
    }

    .visualization .elm-charts__container {
        padding: var(--spacing-m) 0 var(--spacing-m);
        margin-top: var(--spacing-l);
    }
}