/* Global styles
/* ---------------------------------------------------------- */


/* Variables
/* ---------------------------------------------------------- */

:root {
    /* Colours */
    --darkgrey: #242628;
    --midgrey: #7d878a;
    --lightgrey: #e2edf2;
    --blue: #5ba4e5;
    --red: #e25440;
    --orange: #f2a925;
    --green: #9fbb58;
    /* Style values */
    --border-radius: 4px;
    --font-family: "Open Sans", sans-serif;
    --font-family-mono: Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* Colour classes
/* ---------------------------------------------------------- */
.darkgrey {
    color: var(--darkgrey);
}

.midgrey {
    color: var(--midgrey);
}

.lightgrey {
    color: var(--lightgrey);
}

.blue {
    color: var(--blue);
}

.red {
    color: var(--red);
}

.orange {
    color: var(--orange);
}

.green {
    color: var(--green);
}

/* Layout
/* ---------------------------------------------------------- */

*,
*:before,
*:after {
    box-sizing: border-box;
    user-select: none;
}

html {
    overflow: hidden;
    width: 100%;
    /* Prevent elastic scrolling on the whole page */
    height: 100%;
    font: 62.5%/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Oxygen,Ubuntu,Cantarell,"Open Sans","Helvetica Neue",sans-serif;

    -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
}

body {
    overflow: auto;
    overflow-x: hidden;
    width: 100%;
    /* Prevent elastic scrolling on the whole page */
    height: 100%;
    color: color(var(--darkgrey) lightness(+10%));
    font-size: 1.4rem;
}

::selection {
    background: color(var(--blue) lightness(+20%));
}


/* Text
/* ---------------------------------------------------------- */

h1,
h2,
h3,
h4,
h5,
h6 {
    margin: 0 0 0.3em 0;
    color: var(--darkgrey);
    line-height: 1.15em;
    text-rendering: optimizeLegibility;
}

h1 {
    text-indent: -1px;
    font-size: 5rem;
}

h2 {
    text-indent: -1px;
    font-size: 4.2rem;
}

h3 {
    font-size: 3.8rem;
}

h4 {
    font-size: 3.1rem;
}

h5 {
    font-size: 2.8rem;
}

h6 {
    font-size: 2.2rem;
}

p,
ul,
ol,
dl {
    margin: 0 0 1.7em 0;
}

ol,
ul {
    padding-left: 2.5em;
}

ol ol,
ul ul,
ul ol,
ol ul {
    margin: 0 0 0.4em 0;
    padding-left: 2em;
    font-size: 0.9em;
}

mark {
    background-color: #fdffb6;
}

a {
    color: var(--blue);
    text-decoration: none;
    transition: background 0.3s, color 0.3s;
}

a:hover {
    text-decoration: none;
    transition: background 0.1s, color 0.1s;
}

a.highlight {
    color: var(--orange);
    font-weight: bold;
}

hr {
    display: block;
    margin: 3.2em 0;
    padding: 0;
    height: 1px;
    border: 0;
    border-top: 1px solid #dfe1e3;
}

dl {
    margin: 1.6em 0;
}

dl dt {
    float: left;
    clear: left;
    overflow: hidden;
    margin-bottom: 1em;
    width: 180px;
    text-align: right;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-weight: bold;
}

dl dd {
    margin-bottom: 1em;
    margin-left: 200px;
}

blockquote {
    margin: 1.6em 0;
    padding: 0 1.6em 0 1.6em;
    border-left: #dfe1e3 0.6em solid;;
}

blockquote p {
    margin: 0.8em 0;
    font-size: 1.2em;
    font-weight: 300;
}

blockquote small {
    display: inline-block;
    margin: 0.8em 0 0.8em 1.5em;
    color: var(--midgrey);
    font-size: 0.9em;
}
/* Quotation marks */
blockquote small:before {
    content: "\2014 \00A0";
}

blockquote cite {
    font-weight: bold;
}
blockquote cite a {
    font-weight: normal;
}

.markdown,
pre,
code,
tt {
    font-family: var(--font-family-mono);
}

code,
tt {
    padding: 0.2rem 0.3rem 0.1rem;
    border: color(#f5f7f8 lightness(-10%)) 1px solid;
    background: #f5f7f8;
    border-radius: 2px;
    color: #c25;
    vertical-align: middle;
    white-space: pre-wrap;
    font-size: 0.8em;
    line-height: 1em;
}

pre {
    overflow: auto;
    margin: 1.6em 0;
    padding: 10px;
    width: 100%;
    border: color(#f5f7f8 lightness(-10%)) 1px solid;
    background: #f5f7f8;
    border-radius: 3px;
    white-space: pre;
    font-family: var(--font-family-mono);
    font-size: 0.9em;;
}

pre code,
pre tt {
    padding: 0;
    border: none;
    background: transparent;
    color: inherit;
    white-space: pre-wrap;
    font-size: inherit;
}

kbd {
    display: inline-block;
    margin-bottom: 0.4em;
    padding: 1px 8px;
    border: #ccc 1px solid;
    background: #f4f4f4;
    border-radius: 4px;
    box-shadow: 0 1px 0 rgba(0, 0, 0, 0.2),
    0 1px 0 0 #fff inset;
    color: var(--darkgrey);
    text-shadow: #fff 0 1px 0;
    font-size: 0.9em;
    font-weight: bold;
}

button {
    padding: 0;
    outline: none;
    border: none;
    background: transparent;
    box-shadow: none;
}

i {
    display: block;
}

img {
    max-width: 100%;
}


/* Utilities
/* ---------------------------------------------------------- */

.clearfix,
.clearfix:after {
    content: "";
    display: table;
    clear: both;
}

.wrapper {
    position: relative;
}

.show {
    display: block !important;
}

.hidden {
    visibility: hidden !important;
    display: none !important;
}

.invisible {
    visibility: hidden;
}

.sr-only {
    position: absolute;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    margin: -1px;
    padding: 0;
    width: 1px;
    height: 1px;
    border: 0;
}

.sr-only-focusable:focus {
    z-index: 900;
    overflow: visible;
    clip: auto;
    margin: 0;
    padding: 0 10px;
    width: auto;
    height: auto;
    background-color: #f5f5f5;
    color: #333;
    text-decoration: none;
    line-height: 49px;
    font-weight: bold;
}

.right {
    float: right;
}

.left {
    float: left;
}

.vertical {
    display: table-cell;
    vertical-align: middle;
}


/* Animations
/* ---------------------------------------------------------- */

@keyframes fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fade-in-snap {
    to {
        opacity: 1;
    }
}

@keyframes fade-in-scale {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes fade-out {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

@keyframes keyboard-focus-style-fade-out {
    from {
        box-shadow: inset 0 0 30px 1px color(var(--midgrey) lightness(+20%));
    }
    to {
        box-shadow: none;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.fade-in {
    animation: fade-in 0.2s;
    animation-fill-mode: forwards;
}

.fade-in-scale {
    animation: fade-in-scale 0.2s;
    animation-fill-mode: forwards;
}

.fade-out {
    animation: fade-out 0.5s;
    animation-fill-mode: forwards;
}