@charset "UTF-8";

/* ==========================================================================
   Design tokens — TTG palette + font stacks. Defined here in general.css
   (which loads first), so every component file can reference them.
   ========================================================================== */
:root {
    /* Brand blues — sidebar chrome */
    --ttg-header: #275497;
    --ttg-sidebar: #3974cc;
    --ttg-line: #6290d6;
    --ttg-search-bg: #2b5da7;
    --ttg-h5-parent: #2d61af;
    --ttg-read-icon: #b3c9eb;
    --ttg-parent: #2f66b7;
    --ttg-active: #5c99de;
    --ttg-active-edge: #3d65b2;
    --ttg-tabs-bar: #3064ba;
    --ttg-tab: #517dc5;
    --ttg-tab-hover: #668ccc;

    /* Content ink + links */
    --ttg-link: #1565c0;
    --ttg-link-hover: #0d47a1;
    --ink: #1a1a1a;
    --ink-body: #333;

    /* Font stacks */
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
        Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
    --font-mono: "Roboto Mono", Consolas, "Liberation Mono", Menlo, Courier, monospace;
}

/* ==========================================================================
   general.css — base resets, links, forms, buttons, bullets, tooltips,
   scrollbar, lifecycle, chapter, page-title, plugin fixes, and the fixed
   top bar + global layout (body offset / flex).
   ========================================================================== */

/* ---- Learn theme base ---- */
.button, .button-secondary {
  display: inline-block;
  padding: 7px 12px; }
  .button:active, .button-secondary:active {
    margin: 2px 0 -2px 0; }

body {
  background: #fff;
  color: #555;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale; }

a {
  color: #1694CA; }
  a:hover {
    color: #0e6185; }

.bg {
  background: #fff;
  border: 1px solid #eaeaea; }

.default-animation, #sidebar, #sidebar ul, #body, #body .padding, #body .nav {
  -webkit-transition: all 0.5s ease;
  -moz-transition: all 0.5s ease;
  transition: all 0.5s ease; }

fieldset {
  border: 1px solid #ddd; }

textarea, input[type="email"], input[type="number"], input[type="password"], input[type="search"], input[type="tel"], input[type="text"], input[type="url"], input[type="color"], input[type="date"], input[type="datetime"], input[type="datetime-local"], input[type="month"], input[type="time"], input[type="week"], select[multiple=multiple] {
  background-color: white;
  border: 1px solid #ddd;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06); }
  textarea:hover, input[type="email"]:hover, input[type="number"]:hover, input[type="password"]:hover, input[type="search"]:hover, input[type="tel"]:hover, input[type="text"]:hover, input[type="url"]:hover, input[type="color"]:hover, input[type="date"]:hover, input[type="datetime"]:hover, input[type="datetime-local"]:hover, input[type="month"]:hover, input[type="time"]:hover, input[type="week"]:hover, select[multiple=multiple]:hover {
    border-color: #c4c4c4; }
  textarea:focus, input[type="email"]:focus, input[type="number"]:focus, input[type="password"]:focus, input[type="search"]:focus, input[type="tel"]:focus, input[type="text"]:focus, input[type="url"]:focus, input[type="color"]:focus, input[type="date"]:focus, input[type="datetime"]:focus, input[type="datetime-local"]:focus, input[type="month"]:focus, input[type="time"]:focus, input[type="week"]:focus, select[multiple=multiple]:focus {
    border-color: #1694CA;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06), 0 0 5px rgba(19, 131, 179, 0.7); }

#main {
  background: #f7f7f7;
  margin: 0 0 1.563rem 0; }

#chapter {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem 0; }
  #chapter #body-inner {
    padding-bottom: 3rem;
    max-width: 80%; }
  #chapter h3 {
    font-family: var(--font-sans);
    font-weight: 400;
    text-align: center; }
  #chapter h1 {
    font-size: 5rem;
    border-bottom: 4px solid #F0F2F4; }
  #chapter p {
    text-align: center;
    font-size: 1.2rem; }

.page-title {
  margin-top: -25px;
  padding: 25px;
  float: left;
  clear: both;
  background: #1694CA;
  color: #fff; }

.scrollbar-inner > .scroll-element .scroll-element_track {
  background-color: rgba(255, 255, 255, 0.3); }

.scrollbar-inner > .scroll-element .scroll-bar {
  background-color: #b5d1eb; }

.scrollbar-inner > .scroll-element:hover .scroll-bar {
  background-color: #ccc; }

.scrollbar-inner > .scroll-element.scroll-draggable .scroll-bar {
  background-color: #ccc; }

.button {
  background: #1694CA;
  color: #fff;
  box-shadow: 0 3px 0 #1380ae; }
  .button:hover {
    background: #1380ae;
    box-shadow: 0 3px 0 #106c93;
    color: #fff; }
  .button:active {
    box-shadow: 0 1px 0 #106c93; }

.button-secondary {
  background: #F8B450;
  color: #fff;
  box-shadow: 0 3px 0 #f7a733; }
  .button-secondary:hover {
    background: #f7a733;
    box-shadow: 0 3px 0 #f69b15;
    color: #fff; }
  .button-secondary:active {
    box-shadow: 0 1px 0 #f69b15; }

.bullets {
  margin: 1.7rem 0;
  margin-left: -0.85rem;
  margin-right: -0.85rem;
  overflow: auto; }

.bullet {
  float: left;
  padding: 0 0.85rem; }

.two-column-bullet {
  width: 50%; }
  @media only all and (max-width: 47.938em) {
    .two-column-bullet {
      width: 100%; } }

.three-column-bullet {
  width: 33.33333%; }
  @media only all and (max-width: 47.938em) {
    .three-column-bullet {
      width: 100%; } }

.four-column-bullet {
  width: 25%; }
  @media only all and (max-width: 47.938em) {
    .four-column-bullet {
      width: 100%; } }

.bullet-icon {
  float: left;
  background: #1694CA;
  padding: 0.875rem;
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  color: #fff;
  font-size: 1.75rem;
  text-align: center; }

.bullet-icon-1 {
  background: #1694CA; }

.bullet-icon-2 {
  background: #16cac4; }

.bullet-icon-3 {
  background: #b2ca16; }

.bullet-content {
  margin-left: 4.55rem; }

.tooltipped {
  position: relative; }

.tooltipped:after {
  position: absolute;
  z-index: 1000000;
  display: none;
  padding: 5px 8px;
  font: normal normal 11px/1.5 var(--font-sans);
  color: #fff;
  text-align: center;
  text-decoration: none;
  text-shadow: none;
  text-transform: none;
  letter-spacing: normal;
  word-wrap: break-word;
  white-space: pre;
  pointer-events: none;
  content: attr(aria-label);
  background: rgba(0, 0, 0, 0.8);
  border-radius: 3px;
  -webkit-font-smoothing: subpixel-antialiased; }

.tooltipped:before {
  position: absolute;
  z-index: 1000001;
  display: none;
  width: 0;
  height: 0;
  color: rgba(0, 0, 0, 0.8);
  pointer-events: none;
  content: "";
  border: 5px solid transparent; }

.tooltipped:hover:before, .tooltipped:hover:after,
.tooltipped:active:before,
.tooltipped:active:after,
.tooltipped:focus:before,
.tooltipped:focus:after {
  display: inline-block;
  text-decoration: none; }

.tooltipped-s:after,
.tooltipped-se:after,
.tooltipped-sw:after {
  top: 100%;
  right: 50%;
  margin-top: 5px; }
.tooltipped-s:before,
.tooltipped-se:before,
.tooltipped-sw:before {
  top: auto;
  right: 50%;
  bottom: -5px;
  margin-right: -5px;
  border-bottom-color: rgba(0, 0, 0, 0.8); }

.tooltipped-se:after {
  right: auto;
  left: 50%;
  margin-left: -15px; }

.tooltipped-sw:after {
  margin-right: -15px; }

.tooltipped-n:after,
.tooltipped-ne:after,
.tooltipped-nw:after {
  right: 50%;
  bottom: 100%;
  margin-bottom: 5px; }
.tooltipped-n:before,
.tooltipped-ne:before,
.tooltipped-nw:before {
  top: -5px;
  right: 50%;
  bottom: auto;
  margin-right: -5px;
  border-top-color: rgba(0, 0, 0, 0.8); }

.tooltipped-ne:after {
  right: auto;
  left: 50%;
  margin-left: -15px; }

.tooltipped-nw:after {
  margin-right: -15px; }

.tooltipped-s:after,
.tooltipped-n:after {
  transform: translateX(50%); }

.tooltipped-w:after {
  right: 100%;
  bottom: 50%;
  margin-right: 5px;
  transform: translateY(50%); }
.tooltipped-w:before {
  top: 50%;
  bottom: 50%;
  left: -5px;
  margin-top: -5px;
  border-left-color: rgba(0, 0, 0, 0.8); }

.tooltipped-e:after {
  bottom: 50%;
  left: 100%;
  margin-left: 5px;
  transform: translateY(50%); }
.tooltipped-e:before {
  top: 50%;
  right: -5px;
  bottom: 50%;
  margin-top: -5px;
  border-right-color: rgba(0, 0, 0, 0.8); }

.scroll-wrapper {
  overflow: hidden !important;
  padding: 0 !important;
  position: relative; }

.scroll-wrapper > .scroll-content {
  border: none !important;
  box-sizing: content-box !important;
  height: auto;
  left: 0;
  margin: 0;
  max-height: none;
  max-width: none !important;
  overflow: scroll !important;
  padding: 0;
  position: relative !important;
  top: 0;
  width: auto !important; }

.scroll-wrapper > .scroll-content::-webkit-scrollbar {
  height: 0;
  width: 0; }

.scroll-element {
  display: none; }

.scroll-element, .scroll-element div {
  box-sizing: content-box; }

.scroll-element.scroll-x.scroll-scrollx_visible,
.scroll-element.scroll-y.scroll-scrolly_visible {
  display: block; }

.scroll-element .scroll-bar,
.scroll-element .scroll-arrow {
  cursor: default; }

.scroll-textarea > .scroll-content {
  overflow: hidden !important; }

.scroll-textarea > .scroll-content > textarea {
  border: none !important;
  box-sizing: border-box;
  height: 100% !important;
  margin: 0;
  max-height: none !important;
  max-width: none !important;
  overflow: scroll !important;
  outline: none;
  padding: 2px;
  position: relative !important;
  top: 0;
  width: 100% !important; }

.scroll-textarea > .scroll-content > textarea::-webkit-scrollbar {
  height: 0;
  width: 0; }

/*************** SIMPLE INNER SCROLLBAR ***************/
.scrollbar-inner > .scroll-element,
.scrollbar-inner > .scroll-element div {
  border: none;
  margin: 0;
  padding: 0;
  position: absolute;
  z-index: 10; }

.scrollbar-inner > .scroll-element div {
  display: block;
  height: 100%;
  left: 0;
  top: 0;
  width: 100%; }

.scrollbar-inner > .scroll-element.scroll-x {
  bottom: 2px;
  height: 8px;
  left: 0;
  width: 100%; }

.scrollbar-inner > .scroll-element.scroll-y {
  height: 100%;
  right: 2px;
  top: 0;
  width: 8px; }

.scrollbar-inner > .scroll-element .scroll-element_outer {
  overflow: hidden; }

.scrollbar-inner > .scroll-element .scroll-element_outer,
.scrollbar-inner > .scroll-element .scroll-element_track,
.scrollbar-inner > .scroll-element .scroll-bar {
  -webkit-border-radius: 8px;
  -moz-border-radius: 8px;
  border-radius: 8px; }

.scrollbar-inner > .scroll-element .scroll-element_track,
.scrollbar-inner > .scroll-element .scroll-bar {
  -ms-filter: "progid:DXImageTransform.Microsoft.Alpha(Opacity=30)";
  filter: alpha(opacity=30);
  opacity: 0.3; }

/* update scrollbar offset if both scrolls are visible */
.scrollbar-inner > .scroll-element.scroll-x.scroll-scrolly_visible .scroll-element_track {
  left: -12px; }

.scrollbar-inner > .scroll-element.scroll-y.scroll-scrollx_visible .scroll-element_track {
  top: -12px; }

.scrollbar-inner > .scroll-element.scroll-x.scroll-scrolly_visible .scroll-element_size {
  left: -12px; }

.scrollbar-inner > .scroll-element.scroll-y.scroll-scrollx_visible .scroll-element_size {
  top: -12px; }

.lightbox-active #body {
  overflow: visible; }
  .lightbox-active #body .padding {
    overflow: visible; }

#github-contrib i {
  vertical-align: middle; }

.featherlight img {
  margin: 0 !important; }

.lifecycle #body-inner ul {
  list-style: none;
  margin: 0;
  padding: 2rem 0 0;
  position: relative; }
.lifecycle #body-inner ol {
  margin: 1rem 0 1rem 0;
  padding: 2rem;
  position: relative; }
  .lifecycle #body-inner ol li {
    margin-left: 1rem; }
  .lifecycle #body-inner ol strong, .lifecycle #body-inner ol label, .lifecycle #body-inner ol th {
    text-decoration: underline; }
  .lifecycle #body-inner ol ol {
    margin-left: -1rem; }
.lifecycle #body-inner h3[class*='level'] {
  font-size: 20px;
  position: absolute;
  margin: 0;
  padding: 4px 10px;
  right: 0;
  z-index: 1000;
  color: #fff;
  background: #1ABC9C; }
.lifecycle #body-inner ol h3 {
  margin-top: 1rem !important;
  right: 2rem !important; }
.lifecycle #body-inner .level-1 + ol {
  background: #f6fefc;
  border: 4px solid #1ABC9C;
  color: #16A085; }
  .lifecycle #body-inner .level-1 + ol h3 {
    background: #2ECC71; }
.lifecycle #body-inner .level-2 + ol {
  background: #f7fdf9;
  border: 4px solid #2ECC71;
  color: #27AE60; }
  .lifecycle #body-inner .level-2 + ol h3 {
    background: #3498DB; }
.lifecycle #body-inner .level-3 + ol {
  background: #f3f9fd;
  border: 4px solid #3498DB;
  color: #2980B9; }
  .lifecycle #body-inner .level-3 + ol h3 {
    background: #34495E; }
.lifecycle #body-inner .level-4 + ol {
  background: #e4eaf0;
  border: 4px solid #34495E;
  color: #2C3E50; }
  .lifecycle #body-inner .level-4 + ol h3 {
    background: #34495E; }

.parent-element {
  -webkit-transform-style: preserve-3d;
  -moz-transform-style: preserve-3d;
  transform-style: preserve-3d; }


/* ---- TTG top bar + global layout ---- */
/* ==========================================================================
   Top bar
   ========================================================================== */
#top-bar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 54px;
    z-index: 1100;
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0 1.25rem;
    margin: 0;
    background: #000;
    border-radius: 0;
    border-bottom: 1px solid rgba(255,255,255,.08);
    font-size: 0.85rem;
    box-sizing: border-box;
}

/* logo on the far left */
#topbar-logo {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
    height: 100%;
}
#topbar-logo img {
    height: 34px;
    width: auto;
    display: block;
    border-radius: 5px;
}

/* hamburger toggle — mobile only (hidden on desktop) */
#top-bar #sidebar-toggle {
    color: #fff;
    flex: 0 0 auto;
    display: none;
    align-items: center;
    font-size: 1.25rem;
    text-decoration: none;
}

/* right-side actions, pushed to the far right */
.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    white-space: nowrap;
    flex: 0 0 auto;
    margin-left: auto;
}

.topbar-link {
    color: rgba(255,255,255,.8);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: color 0.15s;
}
.topbar-link:hover { color: #fff; }
.topbar-link .mdi { font-size: 1.15rem; }
.topbar-sep { color: rgba(255,255,255,.25); font-size: 0.85rem; }

/* offset everything below the fixed bar */
body {
    padding-top: 54px;
    box-sizing: border-box;
}


@media (min-width: 48em) {
    body {
        display: flex;
        flex-wrap: wrap;
        min-height: 100vh;
    }
    /* hamburger only needed on mobile off-canvas */
    #top-bar #sidebar-toggle { display: none; }
}

@media (max-width: 47.99em) {
    #top-bar #sidebar-toggle { display: inline-flex; }
}