:root
{
    --color-accent: #D80C49;
    --color-secondary: #AE1246;
    --color-light: #EEEEEE;
    --color-light-darker: #E0E0E0;
    --color-dark-lighter: #6A6A6A;
    --color-dark: #1D1D1D;

    --font-family: 'Source Sans Pro';
    --font-size: 18px;
    --font-size-larger: 22px;
    --font-color: var(--color-dark);

    --base-size: 25px;

    --animation-ease-out: cubic-bezier(0.075, 0.82, 0.165, 1);
    --animation-short: .3s;

    --shadow-normal:
        0 1px 1px 0 rgba(0, 0, 0, 0.14),
        0 2px 1px -1px rgba(0, 0, 0, 0.12),
        0 1px 3px 0 rgba(0, 0, 0, 0.20);

    --shadow-high:
        0 4px 5px 0 rgba(0, 0, 0, 0.14),
        0 1px 10px 0 rgba(0, 0, 0, 0.12),
        0 2px 4px -1px rgba(0, 0, 0, 0.20);
}

body, html
{
    padding: 0;
    margin: 0;
    outline: 0;
    height: 100%;

    background-color: var(--color-light);

    font-family: var(--font-family);
    font-size: var(--font-size);
    line-height: var(--base-size);
    color: var(--font-color);
}

body, html, #root
{
    width: 100%;
    height: 100%;
}

input
{
    font-family: var(--font-family);
    font-size: var(--font-size);

    padding: 0 calc(.5 * var(--base-size));
    height: calc(2 * var(--base-size));
    line-height: calc(2 * var(--base-size));
}

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

/**
 * App
 */

.App
{
    width: 100%;
    height: 100%;
}

.App .TermInput
{
    position: absolute;
    z-index: 2;

    width: 600px;

    top: calc(2 * var(--base-size));
    left: 50%;
    transform: translateX(-50%);
}

/**
 * TermInput
 */

.TermInput
{
    display: flex;
    flex-wrap: wrap;
    align-items: center;

    border-radius: 2px;
    background: white;

    box-shadow: var(--shadow-normal);

    transition: box-shadow var(--animation-short) var(--animation-ease-out);
}

.TermInput:focus-within
{
    box-shadow: var(--shadow-high);
}

.TermInput_term
{
    display: inline-block;

    border-radius: 2px;
    padding: calc(.25 * var(--base-size)) calc(.5 * var(--base-size));
    margin:
        calc(.25 * var(--base-size))
        0
        calc(.25 * var(--base-size))
        calc(.25 * var(--base-size));

    background: var(--color-secondary);
    color: var(--color-light);
    cursor: pointer;

    transition: background var(--animation-short) var(--animation-ease-out);
}

.TermInput_term:hover
{
    background: var(--color-accent);
}

.TermInput_input
{
    flex: 1;
    border: none;
}

.TermInput_suggestions
{
    width: 100%;

    margin: 0;
    padding: 0;

    list-style: none;
}

.TermInput_suggestion
{
    height: calc(2 * var(--base-size));
    padding: 0 calc(.5 * var(--base-size));

    cursor: pointer;
    line-height: calc(2 * var(--base-size));

    transition: background var(--animation-short) var(--animation-ease-out);
}

.TermInput_suggestion-focus
{
    background: var(--color-light-darker);
}

/**
 * Graph
 */

.Graph
{
    position: relative;
    display: block;
    width: 100%;
    height: 100%;

    overflow: hidden;
    user-select: none;
}

.Graph_edgesContainer
{
    position: absolute;
    z-index: 0;

    top: 0;
    left 0;
    width: 100%;
    height: 100%;
}

.Graph_node
{
    position: absolute;
    z-index: 1;

    display: block;
    transform: translate(-50%, -50%);

    box-shadow: var(--shadow-normal);
    transition: box-shadow var(--animation-short) var(--animation-ease-out);
}

.Graph_edge
{
    stroke: var(--color-dark);
}

.Graph_node-dragging
{
    box-shadow: var(--shadow-high);
}

.Graph_element-exit, .Graph_element-enter
{
    transition: opacity var(--animation-short) var(--animation-ease-out);
}

.Graph_element-enter
{
    opacity: 0;
}

.Graph_element-enter-active
{
    opacity: 1;
}

.Graph_element-exit
{
    opacity: 1;
}

.Graph_element-exit-active
{
    opacity: 0;
}

.Graph_empty
{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);

    font-size: var(--font-size-larger);
    font-style: italic;
    color: var(--color-dark-lighter);
}

/**
 * SearchResults
 */

.SearchResults_result
{
    display: inline-block;
    max-width: 200px;
    padding: calc(.25 * var(--base-size)) calc(.5 * var(--base-size));

    background: white;
    border-radius: 2px;

    cursor: pointer;

    text-align: center;
    font-style: italic;
    color: var(--color-dark-lighter);

    transition: background var(--animation-short) var(--animation-ease-out);
}

.SearchResults_result-disease
{
    font-style: normal;
    color: var(--color-dark);
}

.SearchResults_result-term
{
    background: var(--color-secondary);
    color: var(--color-light);
}