/**
* custom theme
* based on the iTechArt theme for Shower HTML presentation engine
*   shower-itechart v1.0.0, https://github.com/MeFoDy/shower-itechart
*   @copyright 2010–2018 Nikita Dubko, https://mefody.github.io/
*   @license MIT
* @license MIT
*/

@charset "UTF-8";
@font-face {
    font-family: PT Sans;
    src: url(../fonts/pt-sans-regular.woff) format("woff")
}

@font-face {
    font-family: PT Sans;
    font-weight: 700;
    src: url(../fonts/pt-sans-bold.woff) format("woff")
}

@font-face {
    font-family: PT Sans;
    font-style: italic;
    src: url(../fonts/pt-sans-italic.woff) format("woff")
}

@font-face {
    font-family: PT Sans;
    font-weight: 700;
    font-style: italic;
    src: url(../fonts/pt-sans-bold-italic.woff) format("woff")
}

@font-face {
    font-family: "PT Sans Narrow";
    font-weight: 700;
    src: url(../fonts/pt-sans-narrow-bold.woff) format("woff")
}

@font-face {
    font-family: PT Mono;
    src: url(../fonts/pt-mono-regular.woff) format("woff")
}

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

.emoji {
    font-family: Noto Color Emoji;
}

svg text,
svg tspan {
    font-family: Ubuntu;
    font-size: 20px;
}

a,
abbr,
acronym,
address,
applet,
article,
aside,
audio,
b,
big,
blockquote,
body,
canvas,
caption,
center,
cite,
code,
dd,
del,
details,
dfn,
div,
dl,
dt,
em,
embed,
fieldset,
figcaption,
figure,
footer,
form,
h1,
h2,
h3,
h4,
h5,
h6,
header,
hgroup,
html,
i,
iframe,
img,
ins,
kbd,
label,
legend,
li,
mark,
menu,
nav,
object,
ol,
output,
p,
pre,
q,
ruby,
s,
samp,
section,
small,
span,
strike,
strong,
sub,
summary,
sup,
table,
tbody,
td,
tfoot,
th,
thead,
time,
tr,
tt,
u,
ul,
var,
video {
    margin: 0;
    padding: 0;
    vertical-align: baseline;
    border: 0;
    font: inherit;
    font-size: 100%
}

.slide h2,
article,
aside,
details,
figcaption,
figure,
footer,
header,
hgroup,
main,
menu,
nav,
section {
    display: block
}

.caption p,
body {
    line-height: 1
}

ol,
ul {
    list-style: none
}

blockquote,
q {
    quotes: none
}

blockquote::after,
blockquote::before,
q::after,
q::before {
    content: none
}

table {
    border-spacing: 0;
    border-collapse: collapse
}

a {
    text-decoration: none
}

@page {
    margin: 0;
    size: 1024px 576px
}

.shower {
    counter-reset: slide;
    color: #000;
    font: 25px/2 PT Sans, sans-serif;
    -webkit-print-color-adjust: exact;
    -webkit-text-size-adjust: none;
    -moz-text-size-adjust: none;
    -ms-text-size-adjust: none
}

@media print {
    .shower {
        text-rendering: geometricPrecision
    }
}

.caption {
    display: none;
    width: 100%;
    margin-top: -.2em;
    padding: 0 1em .93em;
    color: #404040;
    font-size: 25px
}

@media (min-width: 1174px) {
    .caption {
        font-size: 50px
    }
}

@media (min-width: 2348px) {
    .caption {
        font-size: 100px
    }
}

.caption h1 {
    padding-bottom: .15em;
    font: 700 1em/1 PT Sans Narrow, sans-serif
}

.caption p {
    font-size: .6em
}

.caption a {
    color: #4f2fbe;
    text-shadow: 0 -1px 0 #68080c
}

.slide {
    --h-size: 40px;
    position: relative;
    z-index: 1;
    overflow: hidden;
    width: 1024px;
    height: 576px;
    padding: calc(70px + var(--h-size, 0px)) 70px 0;
    background: #fff;
    font-size: 25px
}

.slide h2 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 90px;
    margin-bottom: 34px;
    padding-top: 20px;
    padding-left: 20px;
    color: #404040;
    border-bottom: 1px solid #bfbfbf;
    font: 700 50px/1 PT Sans Narrow, sans-serif;
    line-height: 50px
}

.slide h3 {
    font-size: 1.5em;
    line-height: 1.2
}

.slide p {
    margin-bottom: 1em
}

.slide p.note {
    color: gray
}

.slide a {
    background: -webkit-gradient(linear, left bottom, left top, color-stop(.09em, currentColor), color-stop(.09em, transparent)) repeat-x;
    background: linear-gradient(to top, currentColor .09em, transparent .09em) repeat-x;
    color: #4b86c2
}

.slide.black a {
    background: -webkit-gradient(linear, left bottom, left top, color-stop(.09em, currentColor), color-stop(.09em, transparent)) repeat-x;
    background: linear-gradient(to top, currentColor .09em, transparent .09em) repeat-x;
    color: #92c1f1
}

.slide b,
.slide h3,
.slide strong {
    font-weight: 700
}

.slide blockquote,
.slide dfn,
.slide em,
.slide i {
    font-style: italic
}

.slide code,
.slide kbd,
.slide mark,
.slide samp {
    padding: .1em .3em;
    border-radius: .2em
}

.slide code,
.slide kbd,
.slide samp {
    background: rgba(64, 64, 64, .1);
    font-family: PT Mono, monospace;
    line-height: 1
}

.slide mark {
    background: #fafaa2
}

.slide sub,
.slide sup {
    position: relative;
    font-size: 75%;
    line-height: 0
}

.slide sub {
    bottom: -.25em
}

.slide sup {
    top: -.5em
}

.slide blockquote::before {
    position: absolute;
    margin: -.15em 0 0 -.43em;
    content: '\201C';
    color: rgba(237, 28, 36, .3);
    font-size: 5em;
    line-height: 1
}

.slide blockquote+figcaption {
    margin: -1em 0 1em;
    font-weight: 700;
    font-style: italic
}

.slide ol,
.slide ul {
    margin-bottom: 1em;
    counter-reset: list
}

.slide ol li,
.slide ul li {
    text-indent: -2em;
    page-break-inside: avoid
}

.slide ol li::before,
.slide ul li::before {
    display: inline-block;
    width: 2em;
    text-align: right;
    color: #4f2fbe
}

.slide ol ol,
.slide ol ul,
.slide ul ol,
.slide ul ul {
    margin-bottom: 0;
    margin-left: 2em
}

.slide ul>li::before {
    padding-right: .5em;
    content: '•'
}

.slide ul>li:lang(ru)::before {
    content: '—'
}

.slide ol>li::before {
    padding-right: .4em;
    content: counter(list) ".";
    counter-increment: list
}

.slide ol>li[value]::before {
    content: attr(value) "."
}

.slide ul>li[value]::before {
    content: attr(value)
}

.slide ul.no-bullets>li::before {
    content: '';
    padding-right: 0
}

.slide table {
    width: calc(100% + 100px + 100px);
    margin-bottom: 1em;
    margin-left: -100px
}

.slide table td:first-child,
.slide table th:first-child {
    padding-left: 96px
}

.slide table td:last-child,
.slide table th:last-child {
    padding-right: 96px
}

.slide table th {
    text-align: left;
    font-weight: 700
}

.slide table tr:not(:last-of-type)>* {
    background: -webkit-gradient(linear, left bottom, left top, color-stop(.055em, rgba(64, 64, 64, .5)), color-stop(.055em, transparent)) repeat-x;
    background: linear-gradient(to top, rgba(64, 64, 64, .5) .055em, transparent .055em) repeat-x
}

.slide table.striped tr:nth-child(even) {
    background: rgba(64, 64, 64, .1)
}

.slide table.striped tr>* {
    background-image: none
}

.slide pre {
    margin-bottom: 1em;
    counter-reset: code;
    white-space: normal
}

.slide pre code {
    display: block;
    width: calc(100% + 100px + 100px);
    margin-left: -100px;
    padding: 0 0 0 100px;
    white-space: pre;
    -moz-tab-size: 4;
    -o-tab-size: 4;
    tab-size: 4;
    border-radius: 0;
    background: 0 0;
    line-height: 2
}

.slide pre code:not(:only-child).mark {
    background: rgba(64, 64, 64, .1)
}

.slide pre code:not(:only-child)::before {
    position: absolute;
    margin-left: -2em;
    content: counter(code, decimal-leading-zero) ".";
    counter-increment: code;
    color: gray
}

.slide pre mark {
    position: relative;
    z-index: -1;
    margin: 0 -.3em
}

.slide pre mark.important {
    color: #fff;
    background: #c00
}

.slide .cover+figcaption.white,
.slide pre mark.important .hljs-string {
    color: #fff
}

.slide pre .comment {
    color: #999
}

.slide footer {
    position: absolute;
    right: 0;
    bottom: -576px;
    left: 0;
    display: none;
    padding: 41px 100px 8px;
    -webkit-transition: bottom .3s;
    transition: bottom .3s;
    background: #fbfbba;
    -webkit-box-shadow: 0 1px 0 #fafaa2 inset;
    box-shadow: 0 1px 0 #fafaa2 inset;
    line-height: 1.5
}

.slide footer mark {
    background: rgba(255, 255, 255, .8)
}

.slide:hover>footer {
    bottom: 0
}

.slide.black {
    background-color: #000;
    color: #bfbfbf
}

.slide.black h2 {
    color: #bfbfbf
}

.slide.red h2::before,
.slide.red::after,
.slide.white {
    background-color: #fff
}

.slide.red {
    color: #fff;
    background-color: #ed1c24
}

.slide.blue {
    color: #fff;
    background-color: #4f2fbe
}

.slide.red h2,
.slide.blue h2 {
    color: #fff;
    border-bottom-color: currentColor
}

.slide.red::after {
    color: #ed1c24
}

.slide.blue::after {
    color: #4f2fbe
}

.slide.half-black,
.slide.half-black>div,
.slide.half-red,
.slide.half-red>div {
    display: -webkit-box;
    display: -webkit-flex;
    display: -ms-flexbox;
    display: flex;
    padding: 0
}

.slide.half-black>div,
.slide.half-red>div {
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    -ms-flex-direction: column;
    flex-direction: column;
    width: 60%;
    padding: 70px;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    -ms-flex-pack: center;
    justify-content: center
}

.slide.half-red>div:nth-child(2n+1) {
    width: 40%;
    color: #fff;
    background-color: #4f2fbe
}

.slide.half-black>div:nth-child(2n+1) {
    width: 40%;
    color: #fff;
    background-color: #000
}

.slide.active.title-humble,
.slide.clear.active,
.slide.title.active {
    z-index: 2
}

.slide.clear::after {
    visibility: hidden
}

.slide.no-heading {
    --h-size: 0px
}

.slide.title h2,
.slide.title-humble h2 {
    position: relative;
    display: table-cell;
    width: auto;
    height: 225px;
    padding-top: 0;
    padding-bottom: 24px;
    padding-left: 0;
    vertical-align: bottom;
    border: 0;
    font-size: 3em;
    line-height: 100%
}

.slide.title h2::before,
.slide.title-humble h2::before {
    display: none
}

.slide.title .author,
.slide.title-humble .author {
    font-size: 1.5em;
    line-height: 100%
}

.slide.title .date,
.slide.title-humble .date {
    color: #4f2fbe;
    font-size: 1em;
    line-height: 100%
}

.slide.title-humble::after,
.slide.title-humble::before {
    background: 0 0
}

.slide .imprint,
.slide .slide-footer {
    position: absolute;
    bottom: 1rem;
    right: 1rem;
    text-align: right;
    line-height: 1.3rem;
    font: 1rem/1 PT Sans, sans-serif
}

.slide .imprint.huge,
.slide .slide-footer.huge {
    font-size: 1.6rem;
    right: 2rem;
    bottom: 2rem
}

.slide .double,
.slide .triple {
    -webkit-hyphens: auto;
    -ms-hyphens: auto;
    hyphens: auto;
    -webkit-column-gap: 75px;
    column-gap: 75px
}

.slide .double {
    -webkit-column-count: 2;
    column-count: 2
}

.slide .triple {
    -webkit-column-count: 3;
    column-count: 3
}

.slide .shout {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: auto;
    padding: 0 20px;
    -webkit-transform: translateY(-50%);
    transform: translateY(-50%);
    text-align: center;
    border: 0;
    font-size: 90px;
    line-height: 1
}

.slide .shout::before {
    display: none
}

.slide .shout a {
    background: -webkit-gradient(linear, left bottom, left top, color-stop(.11em, currentColor), color-stop(.11em, transparent)) repeat-x;
    background: linear-gradient(to top, currentColor .11em, transparent .11em) repeat-x
}

.slide .link {
    position: relative;
    background: 0 0
}

.slide .strike {
    position: relative;
    text-decoration: none
}

.slide .strike::after {
    position: absolute;
    top: 50%;
    left: -10px;
    display: block;
    width: calc(100% + 20px);
    height: 7px;
    content: '';
    -webkit-transform: rotate(-5deg);
    transform: rotate(-5deg);
    background-color: #4f2fbe
}

.slide .label {
    display: inline-block;
    padding: 0 .5em;
    color: #fff;
    background: #4f2fbe
}

.slide .cover {
    z-index: -1;
    max-width: 100%;
    max-height: 100%
}

.slide .cover.w,
.slide .cover.width {
    width: 100%;
    max-height: none
}

.slide .cover.h,
.slide .cover.height {
    max-width: none;
    height: 100%
}

.slide .cover+figcaption {
    position: absolute;
    right: 10px;
    bottom: 20px;
    -webkit-transform: translateX(100%) rotate(-90deg);
    transform: translateX(100%) rotate(-90deg);
    -webkit-transform-origin: 0 100%;
    transform-origin: 0 100%;
    opacity: .7;
    font-size: 12px
}

.slide .cover+figcaption a {
    color: currentcolor
}

.slide .cover,
.slide .place {
    position: absolute;
    top: 50%;
    left: 50%;
    -webkit-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%)
}

.slide .place.b.l,
.slide .place.b.r,
.slide .place.bottom.left,
.slide .place.bottom.right,
.slide .place.t.l,
.slide .place.t.r,
.slide .place.top.left,
.slide .place.top.right {
    -webkit-transform: none;
    transform: none
}

.slide .place.b,
.slide .place.bottom,
.slide .place.t,
.slide .place.top {
    -webkit-transform: translate(-50%, 0);
    transform: translate(-50%, 0)
}

.slide .place.l,
.slide .place.left,
.slide .place.r,
.slide .place.right {
    -webkit-transform: translate(0, -50%);
    transform: translate(0, -50%)
}

.slide .place.t,
.slide .place.t.r,
.slide .place.top,
.slide .place.top.left,
.slide .place.top.right {
    top: 0
}

.slide .place.r,
.slide .place.right {
    right: 0;
    left: auto
}

.slide .place.b,
.slide .place.b.l,
.slide .place.b.r,
.slide .place.bottom,
.slide .place.bottom.left,
.slide .place.bottom.right {
    top: auto;
    bottom: 0
}

.slide .place.l,
.slide .place.left {
    left: 0
}

.slide .red-title {
    position: relative;
    height: auto;
    padding-top: 226px;
    padding-left: 0;
    border: 0;
    font-size: 2.5em;
    line-height: 100%
}

.progress,
.slide .red-title::before {
    display: none
}

.slide .terminal {
    position: relative;
    width: 800px;
    margin: 0 auto 1.2em;
    padding: 10px;
    color: #b4c4c6;
    border-radius: 0 0 7px 7px;
    background-color: #0f3642;
    -webkit-box-shadow: 0 0 0 1px rgba(0, 0, 0, .05), 0 0 30px 1px rgba(0, 0, 0, .5);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, .05), 0 0 30px 1px rgba(0, 0, 0, .5);
    font-family: 'PT Mono', monospace;
    font-size: .8em;
    line-height: 1.2em
}

.slide .terminal::before {
    position: absolute;
    top: -25px;
    left: 0;
    display: block;
    overflow: hidden;
    width: 100%;
    height: 25px;
    padding: 0 80px;
    content: attr(data-content);
    text-align: center;
    white-space: nowrap;
    text-overflow: ellipsis;
    color: #4c3436;
    border-radius: 7px 7px 0 0;
    background: -webkit-gradient(linear, left bottom, left top, from(#d8d8d8), to(#ececec));
    background: linear-gradient(0deg, #d8d8d8, #ececec);
    font-family: 'PT Sans', sans-serif;
    font-size: 16px;
    line-height: 25px
}

.slide .terminal::after {
    position: absolute;
    top: -18px;
    left: 10px;
    width: 12px;
    height: 12px;
    content: '';
    border-radius: 100%;
    background: #f95c5b;
    -webkit-box-shadow: 0 0 0 1px #da3d42, 22px 0 0 0 #fabe3b, 22px 0 0 1px #ecb03e, 44px 0 0 0 #38cd46, 44px 0 0 1px #2eae32;
    box-shadow: 0 0 0 1px #da3d42, 22px 0 0 0 #fabe3b, 22px 0 0 1px #ecb03e, 44px 0 0 0 #38cd46, 44px 0 0 1px #2eae32
}

.slide .terminal p {
    margin: 0
}

.slide .terminal p::before {
    content: '~$ ';
    color: #5ed7ff
}

.slide::after {
    top: 20px;
    right: 20px;
    width: 60px;
    height: 50px;
    padding-top: 0;
    content: counter(slide);
    counter-increment: slide;
    text-align: center;
    color: #fff;
    border-radius: 47px 37px;
    background: #4f2fbe
}

.progress {
    z-index: 1;
    bottom: 0;
    left: -20px;
    clip: rect(5px, 1044px, 15px, 15px);
    -webkit-box-sizing: content-box;
    box-sizing: content-box;
    width: 0;
    height: 0;
    -webkit-transition: width .2s linear;
    transition: width .2s linear;
    border: 5px solid #4f2fbe;
    border-right-color: transparent;
}

.progress[style*='100%'] {
    padding-left: 10px
}

.badge,
.badge a,
.progress,
.slide::after {
    position: absolute
}

.badge {
    z-index: 1;
    top: 0;
    display: none;
    overflow: hidden;
    width: 9em;
    height: 9em;
    font-size: 10px;
    right: 0
}

@media (min-width: 1174px) {
    .badge {
        font-size: 20px
    }
}

@media (min-width: 2348px) {
    .badge {
        font-size: 40px
    }
}

.badge a {
    right: -50%;
    bottom: 50%;
    left: -50%;
    visibility: visible;
    -webkit-transform: rotate(45deg);
    transform: rotate(45deg);
    -webkit-transform-origin: 50% 100%;
    transform-origin: 50% 100%;
    text-align: center;
    color: #fff;
    background: #4f2fbe;
    line-height: 1.9
}

.region {
    display: none
}

@media screen {
    .shower.list {
        position: absolute;
        display: -webkit-box;
        display: -webkit-flex;
        display: -ms-flexbox;
        display: flex;
        clip: rect(0, auto, auto, 0);
        width: 100%;
        background: rgba(64, 64, 64, .1);
        -webkit-flex-wrap: wrap;
        -ms-flex-wrap: wrap;
        flex-wrap: wrap;
        padding-top: 25px
    }
    .shower.list .caption,
    .shower.list .slide footer {
        display: block
    }
    .shower.list .slide {
        -webkit-transform-origin: 0 0;
        transform-origin: 0 0;
        border-radius: 2px;
        -webkit-box-shadow: 0 20px 50px rgba(57, 4, 6, .3);
        box-shadow: 0 20px 50px rgba(57, 4, 6, .3);
        margin: 0 -768px -407px 25px;
        -webkit-transform: scale(.25);
        transform: scale(.25)
    }
}

@media screen and (min-width: 1174px) {
    .shower.list .slide {
        margin: 0 -512px -238px 50px;
        -webkit-transform: scale(.5);
        transform: scale(.5)
    }
}

@media screen and (min-width: 2348px) {
    .shower.list .slide {
        margin: 0 0 100px 100px;
        -webkit-transform: scale(1);
        transform: scale(1)
    }
}

@media screen {
    .shower.list .slide:hover {
        -webkit-box-shadow: 0 0 0 20px rgba(198, 16, 23, .1), 0 20px 50px rgba(198, 16, 23, .3);
        box-shadow: 0 0 0 20px rgba(198, 16, 23, .1), 0 20px 50px rgba(198, 16, 23, .3)
    }
    .shower.list .slide.active {
        -webkit-box-shadow: 0 0 0 1px #c61017, 0 0 0 20px #4f2fbe, 0 20px 50px rgba(0, 0, 0, .3);
        box-shadow: 0 0 0 1px #c61017, 0 0 0 20px #4f2fbe, 0 20px 50px rgba(0, 0, 0, .3)
    }
    .shower.list .slide * {
        pointer-events: none
    }
    .shower.list .badge {
        display: block
    }
}

@media screen and (min-width: 1174px) {
    .shower.list {
        padding-top: 50px
    }
}

@media screen and (min-width: 2348px) {
    .shower.list {
        padding-top: 100px
    }
}

@media screen {
    .shower.full {
        position: absolute;
        top: 50%;
        left: 50%;
        overflow: hidden;
        width: 1024px;
        height: 576px;
        margin: -288px 0 0 -512px;
        background: #000
    }
    .shower.full .slide {
        position: absolute;
        top: 0;
        left: 0;
        visibility: hidden;
        margin-left: -150%
    }
    .shower.full .slide pre code:not(:only-child).mark.next {
        visibility: visible;
        background: 0 0
    }
    .shower.full .slide pre code:not(:only-child).mark.next.active {
        background: rgba(64, 64, 64, .1)
    }
    .shower.full .slide .next {
        visibility: hidden
    }
    .shower.full .slide .next.active {
        visibility: visible
    }
    .shower.full .slide .shout.grow,
    .shower.full .slide .shout.shrink {
        -webkit-transition: .4s ease-out;
        transition: .4s ease-out;
        -webkit-transition-property: opacity, -webkit-transform;
        transition-property: opacity, transform;
        transition-property: opacity, transform, -webkit-transform;
        opacity: 0
    }
    .shower.full .slide .shout.grow {
        -webkit-transform: scale(.1) translateY(-50%);
        transform: scale(.1) translateY(-50%)
    }
    .shower.full .slide .shout.shrink {
        -webkit-transform: scale(10) translateY(-50%);
        transform: scale(10) translateY(-50%)
    }
    .shower.full .slide.active .shout.grow,
    .shower.full .slide.active .shout.shrink {
        -webkit-transform: scale(1) translateY(-50%);
        transform: scale(1) translateY(-50%);
        opacity: 1
    }
    .shower.full .slide.active {
        visibility: visible;
        margin: 0
    }
    .shower.full .progress {
        display: block;
        -webkit-transform: translateZ(0);
        transform: translateZ(0)
    }
    .shower.full .region {
        position: absolute;
        overflow: hidden;
        clip: rect(0 0 0 0);
        width: 1px;
        height: 1px;
        margin: -1px;
        padding: 0;
        border: 0;
        display: block
    }
}