/*
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 */

:root {
    --bg-color-1: white;
    --bg-color-2: hsla(203, 30%, 90%, 1.0);
    --bg-color-3: hsla(203, 30%, 30%, 1.0);
    --fg-color-1: hsla(0, 0%, 0%, 0.95);
    --fg-color-2: hsla(0, 0%, 0%, 0.95);
    --fg-color-3: hsla(0, 0%, 100%, 0.95);
    --accent-color-1: hsla(6, 80%, 70%, 1.0);
    --accent-color-2: hsla(140, 40%, 55%, 1.0);
    --link-color: hsla(203, 90%, 30%, 1.0);
    --code-label-fg-color: rgba(0, 0, 0, 0.7);
    --code-label-bg-color: rgba(0, 0, 0, 0.06);
    --code-label-border-color: rgba(0, 0, 0, 0.2);
    --code-label-fg-color-session-1: rgba(127, 64, 0, 0.7);
    --code-label-bg-color-session-1: rgba(127, 64, 0, 0.06);
    --code-label-border-color-session-1: rgba(127, 64, 0, 0.3);
    --code-label-fg-color-session-2: rgba(0, 64, 127, 0.7);
    --code-label-bg-color-session-2: rgba(0, 64, 127, 0.06);
    --code-label-border-color-session-2: rgba(0, 64, 127, 0.3);
    --code-fg-color: rgba(0, 0, 0, 0.95);
    --code-bg-color: rgba(247, 247, 247, 1.0);
    --heading-font-family: "Alegreya Sans", sans-serif;
    --body-font-family: "Lato", sans-serif;
    --mono-font-family: "Roboto Mono", monospace;
}

* {
    padding: 0;
    box-sizing: border-box;
    border-style: none;
}

*:first-child {
    margin-top: 0;
}

*:last-child {
    margin-bottom: 0;
}

html {
    overflow-y: scroll;
    scroll-padding-top: 6.4em;
}

html,
body,
div,
a,
br {
    margin: 0;
}

body {
    font-family: var(--body-font-family);
    font-size: 12pt;
    line-height: 18pt;
    font-weight: 400;
    color: var(--fg-color-1);
    background-color: var(--bg-color-3);
}

code,
pre {
    font-family: var(--mono-font-family);
    font-size: 10pt;
    font-weight: 400;
    color: var(--code-fg-color);
    position: relative;
}

a.copy-button {
    position: sticky;
    left: 100%;
    height: 0;
    width: 0;
    overflow: visible;
}

a.copy-button > span {
    color: var(--code-bg-color);
    font-size: 1.2em;
    cursor: pointer;
    position: absolute;
    z-index: 1;
    top: 0;
    right: 0;
}

pre:hover a.copy-button > span {
    color: var(--code-fg-color);
}

a.copy-button:active > span {
    top: 1px;
    right: -1px;
}

p code, li code {
    background-color: var(--code-bg-color);
    padding: 0 0.1em;
    font-size: 0.9em;
}

p a code, li a code {
    color: inherit;
}

pre {
    padding: 0.9em 1em 1em 1em;
    margin-top: 0;
    background-color: var(--code-bg-color);
    overflow: auto;
}

.code-label {
    margin-bottom: 0;
    text-transform: uppercase;
    font-size: 0.7em;
    padding: 0.2em 0.6em 0 0.6em;
    color: var(--code-label-fg-color);
    background-color: var(--code-label-bg-color);
    border-bottom: 0.1em solid var(--code-label-border-color);
}

.session-1 {
    color: var(--code-label-fg-color-session-1);
    background-color: var(--code-label-bg-color-session-1);
    border-bottom: 0.1em solid var(--code-label-border-color-session-1);
}

.session-2 {
    color: var(--code-label-fg-color-session-2);
    background-color: var(--code-label-bg-color-session-2);
    border-bottom: 0.1em solid var(--code-label-border-color-session-2);
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--heading-font-family);
    font-size: 14pt;
    line-height: 19pt;
    font-weight: 700;
    position: relative;
    margin-top: 1.2em;
}

h1 {
    font-size: 1.8em;
    line-height: 1.3em;
    margin-top: 0;
    margin-bottom: 1.2em;
}

h2 {
    font-size: 1.5em;
    margin-bottom: 1.1em;
}

h3 {
    font-size: 1.2em;
}

a {
    text-decoration: none;
    color: var(--link-color);
}

a:visited {
    color: var(--link-color);
}

h1 a,
h2 a,
h3 a,
h4 a,
h5 a,
h6 a {
    color: inherit !important;
}

hr {
    border-bottom: 1px solid #ddd;
}

blockquote {
    margin-left: 2em;
}

ol, ul {
    padding: 0 0 0 1em;
}

li {
    margin: 0;
}

li > *:last-child {
    margin-bottom: 1em;
}

table th, table td {
    text-align: left;
    padding-right: 1em;
}

nav.links > a {
    display: inline-block;
    margin-right: 1em;
}

/* --- */

header,
footer {
    margin: 0;
}

header > nav > div,
footer > div,
section > div {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2em;
}

header {
    color: var(--fg-color-1);
    background-color: var(--bg-color-1);
    position: fixed;
    z-index: 1;
    width: 100%;
}

header > nav > div {
    display: flex;
    align-items: center;
}

#-site-nav {
    border-bottom: 3px solid rgba(0, 0, 0, 0.06);
    height: 70px;
}

#-site-nav a {
    display: flex;
    align-items: center;
    height: 70px;
    border-bottom: 3px solid transparent;
    padding: 0.4em 0 0.2em 0;
    color: inherit;
}

#-left-site-nav,
#-right-site-nav {
    display: flex;
    align-items: center;
    margin: 0;
}

#-left-site-nav {
    flex: 4;
}

#-left-site-nav > a {
    margin-right: 2em;
}

#-left-site-nav > a:not(#-logotype):not(.selected):hover {
    color: hsla(0, 0%, 0%, 0.6);
    border-bottom: 3px solid hsla(0, 0%, 0%, 0.1);
}

#-left-site-nav > a.selected {
    color: var(--fg-color-1);
    border-bottom: 3px solid var(--accent-color-2);
    cursor: default;
}

#-logotype {
    font-family: var(--heading-font-family);
    font-size: 16pt;
    font-weight: 700;
}

#-logotype > img {
    display: block;
    height: 46px;
    margin-right: 10px;
    position: relative;
    top: -2px;
}

#-right-sight-nav {
    margin: 0;
}

#-right-site-nav > a {
    flex: 0 1 auto;
    margin-left: 2em;
}

#-small-device-header {
    display: none;
}

#-small-device-header #-site-nav {
    display: flex;
    justify-content: space-between;
    line-height: 1em;
    border-bottom: 3px solid rgba(0, 0, 0, 0.06);
}

#-small-device-header #-site-nav > a {
    display: flex;
    align-items: center;
    color: var(--fg-color-1);
    padding: 0.4em 1.2em;
}

#-small-device-header #-site-nav > a:nth-child(3) {
    position: relative;
    top: 0.1em;
}

#-site-menu-layer {
    display: none;
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: 1;
    background-color: rgba(0, 0, 0, 0.4);
}

#-site-menu-layer > div {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    width: 20em;
    padding: 0.8em;
    background: var(--bg-color-1);
}

#-site-menu-layer a {
    color: var(--fg-color-1);
    font-size: 1.2em;
    padding: 1em;
    border-top: 0.1em solid rgba(0, 0, 0, 0.1);
    display: block;
}

#-site-menu-layer a:first-of-type {
    border-top: none;
}

#-path-nav {
    display: none;
    border-bottom: 3px solid rgba(0, 0, 0, 0.06);
    padding: 0.5em 0;
}

#-path-nav a {
    color: var(--fg-color-1);
}

.path-separator {
    margin-left: 0.6em;
    margin-right: 0.6em;
}

#-main-and-toc > div {
    display: flex;
    align-items: flex-start; /* Important for sticky positioning */
}

#-main-and-toc > div > main {
    width: 70%;
    padding-right: 2em;
}

#-toc {
    display: none;
    width: 30%;
    border-left: 3px solid rgba(0, 0, 0, 0.06);
    padding-left: 2em;
    position: sticky;
    top: 7em;
}

#-toc > h4 {
    font-size: 0.9em;
    font-weight: 500;
    text-transform: uppercase;
}

#-toc > div > a {
    display: table;
    margin-bottom: 1em;
}

#-toc > div > a:last-of-type {
    margin-bottom: 0;
}

#-toc > div > a.selected {
    color: var(--fg-color-1);
    font-weight: 700;
}

section {
    color: var(--fg-color-1);
    background-color: var(--bg-color-1);
}

section:first-of-type > div {
    padding-top: 7em;
}

section:last-of-type > div {
    padding-bottom: 3em;
}

footer {
    color: var(--fg-color-3);
    background-color: var(--bg-color-3);
    z-index: 1;
}

footer a,
footer a:visited {
    color: inherit;
}

footer > div {
    display: flex;
    justify-content: space-between;
    padding-top: 3em;
    padding-bottom: 3em;
}

footer > div > div:nth-child(1) {
    min-width: 8em;
    margin-right: 8em;
}

footer > div > div:nth-child(2) {
    margin-right: 8em;
}

img.diagram {
    max-width: 100%;
}

.example-category {
    font-weight: 300;
    text-transform: uppercase;
    font-size: 0.9em;
}

.column-list {
    column-count: 2;
}

.benefits {
    font-size: 1.2em;
    line-height: 1.4em;
}

.illustration {
}

.pattern {
    margin: 3em 0 5em 0;
}

.pattern > div {
    display: flex;
}

.pattern > div > div:first-of-type > svg {
    width: 20em;
    position: relative;
    top: 50%;
    transform: translateY(-50%);
}

.pattern > div > div:last-of-type {
    margin-left: 2em;
}

span.fab,
span.fas {
    margin-right: 0.2em;
    vertical-align: -0.11em;
}

span.material-icons {
    vertical-align: -0.25em;
}

@media screen and (max-width: 800px) {
    body {
        font-size: 0.9em;
    }

    #-left-site-nav a:not([id="-logotype"]) {
        display: none;
    }

    main {
        width: 100%;
        padding-right: 0;
    }

    #-main-and-toc > div > main {
        width: 100%;
        padding-right: 0;
    }

    #-toc {
        display: none !important;
    }

    footer > div {
        display: block;
    }

    footer > div > div {
        margin-right: 0 !important;
        margin-bottom: 2em;
    }

    .columns {
        display: block !important;
    }

    .pattern {
        margin: 0;
    }

    .pattern > div {
        display: block;
    }

    .pattern > div > div:first-of-type > svg {
        width: 100%;
        position: intial;
        transform: initial;
        margin-top: 2em;
        margin-bottom: 1em;
    }

    .pattern > div > div:last-of-type {
        margin: 0;
    }
}

/* --- */

a.button {
    display: inline-block;
    font-weight: 700;
    padding: 0.6em 1.1em;
    color: var(--fg-color-3);
    background-color: var(--accent-color-2);
    border-radius: 0.2em;
    cursor: pointer;
}

a.button > span.material-icons {
    margin-left: -0.1em;
    margin-right: 0.2em;
}

nav.button-group {
    margin-top: 2em;
    margin-bottom: 2em;
}

nav.button-group > a {
    margin-right: 1em;
}

/* --- */

form input {
    font-size: inherit;
    padding: 0.5em;
    border: 2px solid rgba(0, 0, 0, 0.2);
    border-radius: 0.2em;
    margin-right: 0.4em;
}

form button {
    font-size: inherit;
    font-weight: 700;
    padding: 0.6em 1.1em;
    color: var(--fg-color-3);
    background-color: var(--accent-color-2);
    border-radius: 0.2em;
    cursor: pointer;
}

/* --- */

nav.inline-links > a {
    display: inline;
    margin-right: 1em;
}

/* --- */

.columns {
    display: flex;
}

.columns > div {
    flex-grow: 1;
    flex-basis: 0;
    margin-right: 4em;
    margin-bottom: 2em;
}

.columns > div:last-child {
    margin-right: 0;
}

/* --- */

.doc h2 {
    margin-top: 1.2em;
}

.doc .paragraph {
    margin: 1em 0;
}

.doc .imageblock {
    margin: 2em 0;
}

.doc .imageblock img {
    max-width: 100%;
}

.doc .title {
    margin-top: 1.2em;
    font-size: 1.2em;
    font-weight: 700;
    font-family: var(--heading-font-family);
}

.doc .olist.arabic li {
    margin-bottom: 1em;
}

.doc .admonitionblock .icon i::after {
    content: attr(title);
  }