section.has-light-background,
section.has-light-background h1,
section.has-light-background h2,
section.has-light-background h3,
section.has-light-background h4,
section.has-light-background h5,
section.has-light-background h6 {
    color: #222
}

:root {
    --r-background-color: #191919;
    --r-main-font: Source Sans Pro, Helvetica, sans-serif;
    --r-main-font-size: 42px;
    --r-main-color: #fff;
    --r-block-margin: 20px;
    --r-heading-margin: 0 0 20px 0;
    --r-heading-font: Source Sans Pro, Helvetica, sans-serif;
    --r-heading-color: #fff;
    --r-heading-line-height: 1.2;
    --r-heading-letter-spacing: normal;
    --r-heading-text-transform: uppercase;
    --r-heading-text-shadow: none;
    --r-heading-font-weight: 600;
    --r-heading1-text-shadow: none;
    --r-heading1-size: 2.5em;
    --r-heading2-size: 1.6em;
    --r-heading3-size: 1.3em;
    --r-heading4-size: 1em;
    --r-code-font: monospace;
    --r-link-color: #42affa;
    --r-link-color-dark: #068de9;
    --r-link-color-hover: #8dcffc;
    --r-selection-background-color: #bee4fd;
    --r-selection-color: #fff
}

.reveal-viewport {
    background: #191919;
    background-color: var(--r-background-color)
}

.reveal {
    font-family: var(--r-main-font);
    font-size: var(--r-main-font-size);
    font-weight: 400;
    color: var(--r-main-color)
}

.reveal ::selection {
    color: var(--r-selection-color);
    background: var(--r-selection-background-color);
    text-shadow: none
}

.reveal ::-moz-selection {
    color: var(--r-selection-color);
    background: var(--r-selection-background-color);
    text-shadow: none
}

.reveal .slides section,
.reveal .slides section>section {
    line-height: 1.3;
    font-weight: inherit
}

.reveal h1,
.reveal h2,
.reveal h3,
.reveal h4,
.reveal h5,
.reveal h6 {
    margin: var(--r-heading-margin);
    color: var(--r-heading-color);
    font-family: var(--r-heading-font);
    font-weight: var(--r-heading-font-weight);
    line-height: var(--r-heading-line-height);
    letter-spacing: var(--r-heading-letter-spacing);
    text-transform: var(--r-heading-text-transform);
    text-shadow: var(--r-heading-text-shadow);
    word-wrap: break-word
}

.reveal h1 {
    font-size: var(--r-heading1-size)
}

.reveal h2 {
    font-size: var(--r-heading2-size)
}

.reveal h3 {
    font-size: var(--r-heading3-size)
}

.reveal h4 {
    font-size: var(--r-heading4-size)
}

.reveal h1 {
    text-shadow: var(--r-heading1-text-shadow)
}

.reveal p {
    margin: var(--r-block-margin) 0;
    line-height: 1.3
}

.reveal h1:last-child,
.reveal h2:last-child,
.reveal h3:last-child,
.reveal h4:last-child,
.reveal h5:last-child,
.reveal h6:last-child {
    margin-bottom: 0
}

.reveal iframe,
.reveal img,
.reveal video {
    max-width: 95%;
    max-height: 95%
}

.reveal b,
.reveal strong {
    font-weight: 700
}

.reveal em {
    font-style: italic
}

.reveal dl,
.reveal ol,
.reveal ul {
    display: inline-block;
    text-align: left;
    margin: 0 0 0 1em
}

.reveal ol {
    list-style-type: decimal
}

.reveal ul {
    list-style-type: disc
}

.reveal ul ul {
    list-style-type: square
}

.reveal ul ul ul {
    list-style-type: circle
}

.reveal ol ol,
.reveal ol ul,
.reveal ul ol,
.reveal ul ul {
    display: block;
    margin-left: 40px
}

.reveal dt {
    font-weight: 700
}

.reveal dd {
    margin-left: 40px
}

.reveal blockquote {
    display: block;
    position: relative;
    width: 70%;
    margin: var(--r-block-margin) auto;
    padding: 5px;
    font-style: italic;
    background: rgba(255, 255, 255, .05);
    box-shadow: 0 0 2px rgba(0, 0, 0, .2)
}

.reveal blockquote p:first-child,
.reveal blockquote p:last-child {
    display: inline-block
}

.reveal q {
    font-style: italic
}

.reveal pre {
    display: block;
    position: relative;
    width: 90%;
    margin: var(--r-block-margin) auto;
    text-align: left;
    font-size: .55em;
    font-family: var(--r-code-font);
    line-height: 1.2em;
    word-wrap: break-word;
    box-shadow: 0 5px 15px rgba(0, 0, 0, .15)
}

.reveal code {
    font-family: var(--r-code-font);
    text-transform: none;
    tab-size: 2
}

.reveal pre code {
    display: block;
    padding: 5px;
    overflow: auto;
    max-height: 400px;
    word-wrap: normal
}

.reveal .code-wrapper {
    white-space: normal
}

.reveal .code-wrapper code {
    white-space: pre
}

.reveal table {
    margin: auto;
    border-collapse: collapse;
    border-spacing: 0
}

.reveal table th {
    font-weight: 700
}

.reveal table td,
.reveal table th {
    text-align: left;
    padding: .2em .5em .2em .5em;
    border-bottom: 1px solid
}

.reveal table td[align=center],
.reveal table th[align=center] {
    text-align: center
}

.reveal table td[align=right],
.reveal table th[align=right] {
    text-align: right
}

.reveal table tbody tr:last-child td,
.reveal table tbody tr:last-child th {
    border-bottom: none
}

.reveal sup {
    vertical-align: super;
    font-size: smaller
}

.reveal sub {
    vertical-align: sub;
    font-size: smaller
}

.reveal small {
    display: inline-block;
    font-size: .6em;
    line-height: 1.2em;
    vertical-align: top
}

.reveal small * {
    vertical-align: top
}

.reveal img {
    margin: var(--r-block-margin) 0
}

.reveal a {
    color: var(--r-link-color);
    text-decoration: none;
    transition: color .15s ease
}

.reveal a:hover {
    color: var(--r-link-color-hover);
    text-shadow: none;
    border: none
}

.reveal .roll span:after {
    color: #fff;
    background: var(--r-link-color-dark)
}

.reveal .r-frame {
    border: 4px solid var(--r-main-color);
    box-shadow: 0 0 10px rgba(0, 0, 0, .15)
}

.reveal a .r-frame {
    transition: all .15s linear
}

.reveal a:hover .r-frame {
    border-color: var(--r-link-color);
    box-shadow: 0 0 20px rgba(0, 0, 0, .55)
}

.reveal .controls {
    color: var(--r-link-color)
}

.reveal .progress {
    background: rgba(0, 0, 0, .2);
    color: var(--r-link-color)
}

@media print {
    .backgrounds {
        background-color: var(--r-background-color)
    }
}