boostlook.css

/**
 * README:
 * This stylesheet contains styles for both AsciiDoctor and Antora templates.
 * The `boostlook` class is applied across both, but due to differences in their HTML structure,
 * specific CSS rules are necessary to target each appropriately.
 *
 * High-Level HTML Structure:
 * 
 * - Antora Template:
 *   <div class="boostlook">
 *     <div class="card nav-container">...</div>
 *     <div class="doc">...</div>
 *   </div>
 *
 * - AsciiDoctor Template:
 *   <div class="boostlook">
 *     <div id="header">...</div>
 *     <div id="content">...</div>
 *     <div id="footer">...</div>
 *   </div>
 *
 * - For Antora templates:
 *   The `.boostlook .doc` selector targets elements within the `.doc` class, and the 
 *   `.boostlook .nav-container` selector targets elements within the `.nav-container` class,
 *   both of which are specific to the Antora HTML structure.
 *
 * - For AsciiDoctor templates:
 *   The `.boostlook:not(:has(.doc))` selector is used to target elements that do not have 
 *   a `.doc` child, applying styles specific to AsciiDoctor content.

 *   Since the `.doc` class is not present in the structure above, the styles defined for 
 *   `.boostlook:not(:has(.doc))` will apply.
 */

/*----------------- Root Variables - Start -----------------*/

:root {
  /* General Variables */
  --bl-primary-color: rgb(255, 159, 0);
  --bl-header-height: 2.5rem;

  /* Light Theme Variables */
  --light-bl-background: rgb(255, 255, 255);
  --light-bl-breadcrumbs-svg-color: rgb(0, 0, 0);
  --light-bl-caret-svg: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20height='24px'%20viewBox='0%20-960%20960%20960'%20width='24px'%20fill='%23000000'%3E%3Cpath%20d='M320-200v-560l440%20280-440%20280Z'/%3E%3C/svg%3E");
  --light-bl-card-background-color: rgb(255, 255, 255);
  --light-bl-code-background: rgb(255, 255, 255);
  --light-bl-code-border-color: rgb(220, 220, 220);
  --light-bl-code-text-color: inherit;
  --light-bl-link-color: rgb(0, 90, 156);
  --light-bl-link-hover-color: rgba(0, 90, 156, 0.7);
  --light-bl-hljs-attribute-color: rgb(70, 130, 180);
  --light-bl-hljs-doctag-color: rgb(221, 17, 68);
  --light-bl-hljs-keyword-color: rgb(51, 51, 51);
  --light-bl-hljs-number-color: rgb(0, 128, 128);
  --light-bl-hljs-section-color: rgb(153, 0, 0);
  --light-bl-nav-link-color: rgb(0, 0, 0);
  --light-bl-nav-fade-color: rgb(255, 255, 255, 1);
  --light-bl-pasteboard-color: rgb(229, 231, 235);
  --light-bl-pre-background: rgb(248, 248, 248);
  --light-bl-primary-color: rgb(255, 159, 0);
  --light-bl-quote-background: rgb(255, 255, 255);
  --light-bl-table-border-color: rgb(232, 232, 232);
  --light-bl-table-head-background: rgb(248, 248, 248);

  /* Dark Theme Variables */
  --dark-bl-border-color: rgb(209, 228, 242);
  --dark-bl-breadcrumbs-svg-color: rgb(255, 255, 255);
  --dark-bl-caret-svg: url("data:image/svg+xml,%3Csvg%20xmlns='http://www.w3.org/2000/svg'%20height='24px'%20viewBox='0%20-960%20960%20960'%20width='24px'%20fill='%23ccc'%3E%3Cpath%20d='M320-200v-560l440%20280-440%20280Z'/%3E%3C/svg%3E");
  --dark-bl-card-background-color: rgb(23, 42, 52);
  --dark-bl-code-background: rgb(20, 20, 20);
  --dark-bl-code-border-color: transparent;
  --dark-bl-code-text-color: rgb(255, 255, 255);
  --dark-bl-link-color: rgb(125 211 252);
  --dark-bl-link-hover-color: rgb(100, 160, 210);
  --dark-bl-hljs-attribute-color: rgb(70, 130, 180);
  --dark-bl-hljs-doctag-color: rgb(255, 99, 132);
  --dark-bl-hljs-keyword-color: rgb(173, 216, 230);
  --dark-bl-hljs-number-color: rgb(72, 209, 204);
  --dark-bl-hljs-section-color: rgb(255, 69, 58);
  --dark-bl-nav-link-color: rgb(255, 255, 255);
  --dark-bl-nav-fade-color: rgb(23, 42, 52);
  --dark-bl-pasteboard-color: rgb(04, 06, 07);
  --dark-bl-pagination-color: rgb(200, 200, 200);
  --dark-bl-quote-background: rgb(11, 59, 82);
  --dark-bl-quote-word-color: rgb(209, 228, 242);
  --dark-bl-tabpanel-background: rgb(28, 50, 59);
  --dark-bl-text-color: rgb(209, 228, 242);
}

/*----------------- Root Variables - End -----------------*/

/*----------------- HTML Variables - Start -----------------*/

html {
  --bl-background: var(--light-bl-background);
  --bl-breadcrumbs-svg-color: var(--light-bl-breadcrumbs-svg-color);
  --bl-caret-svg: var(--light-bl-caret-svg);
  --bl-card-background-color: var(--light-bl-card-background-color);
  --bl-code-background: var(--light-bl-code-background);
  --bl-code-border-color: var(--light-bl-code-border-color);
  --bl-code-text-color: var(--light-bl-code-text-color);
  --bl-hljs-doctag-color: var(--light-bl-hljs-doctag-color);
  --bl-hljs-attribute-color: var(--light-bl-hljs-attribute-color);
  --bl-hljs-keyword-color: var(--light-bl-hljs-keyword-color);
  --bl-hljs-number-color: var(--light-bl-hljs-number-color);
  --bl-hljs-section-color: var(--light-bl-hljs-section-color);
  --bl-link-color: var(--light-bl-link-color);
  --bl-link-hover-color: var(--light-bl-link-hover-color);
  --bl-nav-link-color: var(--light-bl-nav-link-color);
  --bl-nav-fade-color: var(--light-bl-nav-fade-color);
  --bl-pasteboard-color: var(--light-bl-pasteboard-color);
  --bl-pre-background: var(--light-bl-pre-background);
  --bl-quote-background: var(--light-bl-quote-background);
  --bl-table-border-color: var(--light-bl-table-border-color);
  --bl-table-head-background: var(--light-bl-table-head-background);
}

html.dark {
  --bl-border-color: var(--dark-bl-border-color);
  --bl-breadcrumbs-svg-color: var(--dark-bl-breadcrumbs-svg-color);
  --bl-caret-svg: var(--dark-bl-caret-svg);
  --bl-card-background-color: var(--dark-bl-card-background-color);
  --bl-code-background: var(--dark-bl-code-background);
  --bl-code-border-color: var(--dark-bl-code-border-color);
  --bl-code-text-color: var(--dark-bl-code-text-color);
  --bl-hljs-attribute-color: var(--dark-bl-hljs-attribute-color);
  --bl-hljs-doctag-color: var(--dark-bl-hljs-doctag-color);
  --bl-hljs-keyword-color: var(--dark-bl-hljs-keyword-color);
  --bl-hljs-number-color: var(--dark-bl-hljs-number-color);
  --bl-hljs-section-color: var(--dark-bl-hljs-section-color);
  --bl-link-color: var(--dark-bl-link-color);
  --bl-link-hover-color: var(--dark-bl-link-hover-color);
  --bl-nav-link-color: var(--dark-bl-nav-link-color);
  --bl-nav-fade-color: var(--dark-bl-nav-fade-color);
  --bl-pasteboard-color: var(--dark-bl-pasteboard-color);
  --bl-pagination-color: var(--dark-bl-pagination-color);
  --bl-quote-background: var(--dark-bl-quote-background);
  --bl-quote-word-color: var(--dark-bl-quote-word-color);
  --bl-tabpanel-background: var(--dark-bl-tabpanel-background);
  --bl-text-color: var(--dark-bl-text-color);
}

/*----------------- HTML Variables - End -----------------*/

/*----------------- Font-Face Declarations start -----------------*/

@font-face {
  font-family: "Noto Sans Display";
  font-style: normal;
  font-weight: normal;
  font-stretch: semi-condensed;
  font-display: block;
  src: url('/_/fonts/NotoSansDisplay.ttf') format('truetype'),
       url('../../../../tools/boostlook/NotoSansDisplay.ttf') format('truetype'),
       url("https://cppalliance.org/fonts/NotoSansDisplay.ttf") format('truetype');
}

@font-face {
  font-family: "Noto Sans Display";
  font-style: italic;
  font-weight: normal;
  font-stretch: semi-condensed;
  font-display: block;
  src: url("/font/NotoSansDisplay-Italic.ttf") format("truetype"),
       url("../../../../tools/boostlook/NotoSansDisplay-Italic.ttf") format("truetype"),
       url("https://cppalliance.org/fonts/NotoSansDisplay-Italic.ttf") format('truetype');
}

@font-face {
  font-family: "Noto Sans Mono";
  font-style: normal;
  font-weight: normal;
  font-stretch: semi-condensed;
  font-display: block;
  src: url("/_/boostlook/NotoSansMono.ttf") format("truetype"),
       url("../../../../tools/boostlook/NotoSansMono.ttf") format("truetype"),
       url("https://cppalliance.org/fonts/NotoSansMono.ttf") format('truetype');
}

/*----------------- Font-Face Declarations end -----------------*/

/*----------------- CSS Reset start -----------------*/

*, *::before, *::after {
  box-sizing: border-box;
}
* {
  margin: 0;
}
body {
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}
input, button, textarea, select {
  font: inherit;
}
p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}
#root, #__next {
  isolation: isolate;
}

/*----------------- CSS Reset end -----------------*/

/*----------------- Global Styles for .boostlook start -----------------*/

.boostlook {
  font-family: "Noto Sans Display" !important;
  font-stretch: condensed;
}

.boostlook h1,
.boostlook h2,
.boostlook h3,
.boostlook h4,
.boostlook h5,
.boostlook h6 {
  display: block;
  line-height: 1;
  margin-top: 1em;
  margin-bottom: 1em;
  font-weight: 500;
}

.boostlook h1 { font-size: 2.5rem; }
.boostlook h2 { font-size: 2rem; }  
.boostlook h3 { font-size: 1.5rem; }
.boostlook h4 { font-size: 1.35rem; }
.boostlook h5 { font-size: 1.25rem; }
.boostlook h6 { font-size: 1rem; } 

.boostlook h1,
.boostlook h2,
.boostlook h3,
.boostlook h4,
.boostlook h5,
.boostlook h6 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}

.boostlook p { 
  font-size: 1rem;
  line-height: 1.75rem;
  margin-bottom: 1.5rem;
}

.boostlook table p,
.boostlook ul p {
  margin: 0;
}

.boostlook a, 
.boostlook .doc a {
  color: var(--bl-link-color);
  text-decoration: none;
}

.boostlook a:hover,
.boostlook .doc a:hover {
  color: var(--bl-link-hover-color);
  cursor: pointer;
  text-decoration: none;
}

.boostlook code {
  font-family: "Noto Sans Mono", monospace;
  margin-bottom: 1.25rem;
}

.boostlook h6:has(+table) {
  margin-left: 1em;
}

.boostlook p code,
.boostlook table code,
.boostlook p tt,
.boostlook p kbd,
.boostlook p samp,
.boostlook p pre {
  background-color: transparent !important;
}

.boostlook .content div:has(> table) {
  overflow-x: auto;
}

.boostlook p code,
.boostlook .colist > table code {
  color: var(--bl-code-text-color) !important;
}

.boostlook .quoteblock, 
.boostlook .verseblock {
  background: var(--bl-quote-background);
  border-left: 3px solid var(--bl-border-color);
  color: var(--bl-text-color);
}

.boostlook .quoteblock::before, 
.boostlook .verseblock::before {
  color: var(--bl-quote-word-color);
}

.boostlook .tabpanel {
  background-color: var(--bl-tabpanel-background);
}

.boostlook .hljs-keyword, 
.boostlook .hljs-selector-tag, 
.boostlook .hljs-subst {
  color: var(--bl-hljs-keyword-color);
}

.boostlook .hljs-number {
  color: var(--bl-hljs-number-color);
}

.boostlook .hljs-doctag, 
.boostlook .hljs-string {
  color: var(--bl-hljs-doctag-color);
}

.boostlook .hljs-section, 
.boostlook .hljs-selector-id, 
.boostlook .hljs-title {
  color: var(--bl-hljs-section-color);
}

.boostlook p a:visited,
.boostlook table a,
.boostlook .pagination a {
  color: var(--bl-link-color);
}

.boostlook .hljs-attribute, 
.boostlook .hljs-name, 
.boostlook .hljs-tag {
  color: var(--bl-hljs-attribute-color);
}

.boostlook nav.pagination span::before {
  color: var(--bl-pagination-color);
}

.boostlook #toc a {
  color: var(--bl-nav-link-color);
}

.boostlook #toc.toc2 {
  padding-bottom: 1.5rem;
}

/*----------------- Global Styles for .boostlook end -----------------*/

/*----------------- Styles specific to AsciiDoctor content start -----------------*/

.article.toc2.toc-left {
  min-height: 100vh;
  max-width: 80rem;
  margin-left: auto;
  margin-right: auto;
  background-color: var(--bl-pasteboard-color);
  position: relative;
}

.boostlook:not(:has(.doc)) pre {
  font-family: "Noto Sans Mono", monospace;
  background-color: var(--bl-pre-background);
  margin-bottom: 1.25rem;
  padding: 1rem;
  overflow-x: auto;
}

.boostlook:not(:has(.doc)) table {
  border-collapse: collapse;
  margin: 1em;
  border: 1px solid var(--bl-table-border-color);
}

.boostlook:not(:has(.doc)) th {
  background-color: var(--bl-table-head-background);
  text-align: left;
  padding: 0.25em 0.55em;
  font-weight: 550;
}

.boostlook:not(:has(.doc)) td {
  border: 1px solid var(--bl-table-border-color);
  padding: 0.25em 0.55em;
}

.boostlook #header > h1 {
  margin-top: 0;
}

.boostlook #toc > ul.sectlevel1 {
  padding-left: 0;
}

.boostlook #toc ul {
  margin: 0;
  padding: 0 0 0 0.5rem;
  line-height: 1.725;
  font-size: 1rem;
  list-style: none;
}

.boostlook #toc .sectlevel1 > li > a {
  font-weight: bolder;
}

.boostlook #toc #toctitle {
  font-size: 1.5rem;
}
 
.boostlook,
.boostlook #toc.toc2 {
  background-color: var(--bl-card-background-color);
  padding: 1rem 1.5rem;
}

.boostlook #toc.toc2 {
  position: static;
  padding-left: 0;
  overflow-y: auto;
}

.boostlook #toc.toc2 > ul {
  padding-bottom: 2rem;
  box-sizing: border-box;
  position: relative;
  z-index: 0;
}

.boostlook #toggle-toc {
  visibility: hidden;
  height: 0;
  width: 0;
}

.boostlook #content .sect3:has(.tableblock) {
  overflow-x: auto;
}

.boostlook .title {
  font-weight: bolder;
  margin-bottom: 0.5rem;
}

.boostlook pre.rouge .o {
  font-weight: normal;
}

.boostlook pre.rouge code span {
  font-style: normal;
}

@media screen and (min-width: 768px) {
  .boostlook #toggle-toc {
    visibility: visible;
    height: auto;
    width: auto;
  }

  .article.toc2.toc-left {
    padding: 1rem;
  }

  .boostlook,
  .boostlook #toc.toc2 {
    border-radius: 0.5rem;
  }

  .boostlook #toc.toc2 {
    position: fixed;
    width: 17rem;
    left: max(1rem, 50% - 39rem);
    top: 1rem;
    z-index: 1000;
    height: calc(100vh - 2rem);
    padding: 1rem;
    padding: 1rem 1rem 1.5rem;
    overflow-x: hidden;
    overflow-y: auto;
  }

  .boostlook {
    margin-left: 18rem;
  }

  .boostlook #toggle-toc {
    position: fixed;
    top: 2rem;
    left: max(1rem, 50% - 39rem - 1rem);
    background-color: rgb(255, 255, 255, 0.5);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: 0;
    padding: 0;
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20height%3D%2224px%22%20viewBox%3D%220%20-960%20960%20960%22%20width%3D%2224px%22%20fill%3D%22%235f6368%22%3E%3Cpath%20d%3D%22M400-240l240-240-240-240-56%2056%20184%20184-184%20184%2056%2056Z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 1rem;
    height: 2rem;
    width: 2rem;
    text-indent: -9999px;
    z-index: 1001; 
  }
}

@media screen and (min-width: 768px) {
  html.toc-hidden .boostlook {
    margin-left: 0;
  }

  html.toc-hidden .boostlook #toggle-toc {
    left: max(0rem, 50% - 39rem - 1rem);
  }

  html.toc-visible .boostlook #toggle-toc {
    left: max(0rem, 50% - 39rem - 1rem);
    background-color: rgb(255, 255, 255, 1);
  }

  html.toc-visible .boostlook {
    margin-left: 0;
  }

  html.toc-hidden .boostlook #toc.toc2 {
    width: 0;
    opacity: 0;
    visibility: hidden;
  }
  
  html.toc-visible #toc.toc2 {
    opacity: 1;
    visibility: visible;
    width: 250px;
    padding-left: 1.5rem;
  }

  html.toc-visible:not(.toc-pinned) #toc.toc2 {
    box-shadow: 4px 0 12px 0px rgba(0, 0, 0, 0.10);
  }

  html.toc-visible.toc-pinned #toggle-toc {
    background-image: url("data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20height%3D%2224px%22%20viewBox%3D%220%20-960%20960%20960%22%20width%3D%2224px%22%20fill%3D%22%235f6368%22%3E%3Cpath%20d%3D%22M560-240%20320-480l240-240%2056%2056-184%20184%20184%20184-56%2056Z%22%2F%3E%3C%2Fsvg%3E");
  }

  html.toc-visible.toc-pinned .boostlook {
    margin-left: 17rem;
  }
}

/*----------------- Styles specific to AsciiDoctor content end -----------------*/

/*----------------- Styles specific to Antora Templates start -----------------*/

/* Typography */
.boostlook .doc,
.boostlook .doc i {
  line-height: 1.5;
  font-family: "Noto Sans Display";
}

.boostlook .nav-menu .title {
  font-size: 1.5rem;
}

.boostlook .breadcrumbs ul li {
  font-size: 0.875rem !important;
}

/* Navigation Menu */
.boostlook .nav-panel-menu {
  overflow: visible;
}

.boostlook .nav-close {
  display: none;
}

.boostlook .nav-menu > .nav-list > .nav-list {
  margin-left: 0;
}

.boostlook .nav-menu > .nav-list > .nav-list > li {
  font-weight: bolder;
}

.boostlook .nav-link,
.boostlook .nav-menu a{
  cursor: pointer;
  color: var(--bl-nav-link-color);
  margin-right: -0.5rem;
}

.boostlook .nav-link:hover,
.boostlook .nav-menu a:hover {
  color: var(--bl-link-hover-color);
}

.boostlook .nav-text { 
  color: #828282;
}

/* Active Page Indicator */
.boostlook .nav-list .is-current-page.is-active {
  position: relative;
}

.boostlook .is-current-page.is-active::before {
  content: "";
  position: absolute;
  top: 0.3125rem;
  width: 16px;
  height: 16px;
  margin-left: -1.25rem;
  background-image: var(--bl-caret-svg);
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 16px;
}

/* Breadcrumbs */
.boostlook .breadcrumbs {
  display: block;
}

.boostlook .breadcrumbs ul li:first-of-type {
  display: flex;
}

.boostlook .breadcrumbs svg {
  fill: var(--bl-breadcrumbs-svg-color);
}

/* Code Block */
.boostlook .doc .content pre code {
  background-color: var(--bl-code-background);
  border-color: var(--bl-code-border-color);
}

/* Layout */
.boostlook .article .content {
  gap: 1rem;
}

.boostlook #content:has(.toc.sidebar) {
  display: flex;
}

/* Table of Contents */
.boostlook .nav {
  height: 100%;
}

.boostlook .toc .toc-menu a {
  border-left: 0;
  padding: .25rem 0 0 0;
}

.boostlook .nav-menu .title {
  padding-left: 1rem;
}

/*----------------- Styles specific to Antora Templates end -----------------*/