:root {
    --color-text-primary: rgba(46, 46, 46, 1);
    --color-text-secondary: rgba(128, 128, 128, 1);

    --color-primary: rgba(64, 84, 163, 1);
    --color-secondary: rgba(35, 70, 112, 1);
    --color-primary-lighter: rgba(132, 149, 219, 1);

    --color-alert-primary: rgba(181, 101, 118, 1);
    --color-highlight: rgba(249, 177, 148, 1);
    --color-highlight-intensive: rgba(229, 107, 111, 1);
    --color-highlight-light: rgba(237, 213, 204, 1);

    --color-max-contrast: rgba(255, 255, 255, 1);
    --color-light-gray: rgba(245, 245, 245, 1);
    --color-heavy-gray: rgba(222, 222, 222, 1);
    --color-code-editor-border: rgba(222, 222, 222, 0.5);
    --color-light-blue: #b8d8fc;
    --color-green: #84e3a5;

    --color-ide-active-line: rgba(115, 212, 170, 0.1);
    --color-console: #07091a;

    --color-smoky: #848fbf;
    --color-main-icon: #c5cded;
    --color-lightest-blue: #edf5ff;

    --color-shadow: rgba(0, 0, 0, 0.05);

    --color-blue: #3f60e0;
    --color-transparent-gray: rgba(35, 70, 112, 0.5);

    /* colors different for themes */
    --color-green-faded: #d4fae2;
    --color-switch-theme-symbol: var(--color-primary);
    --color-switch-theme-symbol-hover: var(--color-blue);

    --color-user-first-letter: var(--color-light-gray);
    --color-user-first-letter-hover: var(--color-light-blue);

    --color-header-bg: var(--color-max-contrast);
    --color-link: var(--color-primary);
    --color-link-hover: var(--color-blue);

    --color-body: var(--color-light-gray);
    --color-text-body: var(--color-text-primary);
    --color-breadcrumps: var(--color-text-secondary);
    --list-item-bg: var(--color-max-contrast);
    --list-item-border: var(--color-light-gray);

    --color-cm-editor: var(--color-code-editor-border);

    --color-code: var(--color-text-primary);
    --color-code-bg: var(--color-light-gray);
    --color-h1: var(--color-text-secondary);
    --color-btn-gray: var(--color-smoky);
    --color-btn-white: var(--color-primary);
    --color-btn-white-hover: var(--color-blue);
    --color-btn-vivid: #9440f5;
    --color-btn-vivid-hover: #7507f3;
    --color-task-status-label: var(--color-max-contrast);
    --color-progress-bar: #686b6a;
    --color-chapter-contents-icon: #c7c5c5;

    --color-dropdown-contents: var(--color-lightest-blue);
    --color-dropdown-hover: var(--color-max-contrast);
    --color-sidebar-bg: var(--color-lightest-blue);
    --color-sidebar-close: var(--color-primary);
    --color-sidebar-title: var(--color-text-secondary);
    --color-modal: var(--color-max-contrast);
    --color-modal-overlay: var(--color-transparent-gray);
    --color-title-moda: var(--primary-color);

    --color-placeholder: var(--color-text-secondary);
    --color-blockquote: var(--color-text-secondary);
    --color-chips: var(--color-main-icon);
    --color-text-about: var(--color-text-secondary);
    --color-light-item: var(--color-light-gray);
    --color-input-border: var(--color-heavy-gray);
    --color-info: var(--color-lightest-blue);
    --color-start: var(--color-light-blue);
    --color-text-green: #2fcc65;
    --color-practice: #aa65c7;
}

[data-theme="dark"] {
    --color-switch-theme-symbol: var(--color-light-blue);
    --color-switch-theme-symbol-hover: var(--color-lightest-blue);

    --color-user-first-letter: var(--color-light-blue);
    --color-user-first-letter-hover: var(--color-lightest-blue);

    --color-header-bg: var(--color-secondary);
    --color-link: var(--color-light-blue);
    --color-link-hover: var(--color-lightest-blue);

    --color-body: #263952;
    --color-text-body: var(--color-heavy-gray);
    --color-breadcrumps: var(--color-heavy-gray);
    --list-item-bg: #28303C;
    --list-item-border: var(--color-secondary);

    --color-cm-editor: var(--color-secondary);

    --color-code: var(--color-main-icon);
    --color-code-bg: var(--color-body);
    --color-h1: var(--color-main-icon);
    --color-btn-gray: var(--color-primary-lighter);
    --color-btn-white: var(--color-light-blue);
    --color-btn-white-hover: var(--color-main-icon);
    --color-task-status-label: var(--list-item-bg);
    --color-progress-bar: var(--color-body);
    --color-chapter-contents-icon: var(--color-smoky);
    --color-dropdown-contents: var(--color-primary);
    --color-dropdown-hover: var(--color-primary);
    --color-sidebar-bg: var(--list-item-bg);
    --color-sidebar-close: var(--color-heavy-gray);
    --color-sidebar-title: var(--color-heavy-gray);
    --color-modal: var(--color-secondary);
    --color-modal-overlay: rgba(40, 48, 60, 0.8);
    --color-title-moda: var(--color-main-icon);
    --color-placeholder: var(--color-smoky);
    --color-blockquote: var(--color-smoky);
    --color-chips: var(--color-smoky);
    --color-text-about: var(--color-smoky);
    --color-light-item: var(--color-secondary);
    --color-input-border: var(--list-item-border);
    --color-info: var(--color-secondary);
    --color-start: var(--color-primary-lighter);
    --color-text-green: var(--color-green);
    --color-green-faded: #7db191;
}

.text-about {
    color: var(--color-text-about);
}

.text-color-blue {
    color: var(--color-start);
}

.text-color-green {
    color: var(--color-text-green);
}

.text-color-practice {
    color: var(--color-practice);
}

.title-modal {
    color: var(--color-title-modal);
}
.theme-switch-symbol {
    color: var(--color-switch-theme-symbol);
    font-size: 1.5em;
}

.theme-switch-symbol:hover,
.theme-switch-symbol:focus {
    text-decoration: none;
    cursor: pointer;
    color: var(--color-switch-theme-symbol-hover);
}

.text-primary { 
    color: var(--color-text-primary);
    font-size: 1.0em;
}

.text-secondary { 
    color: var(--color-text-secondary);
}

.primary-color { 
    color: var(--color-primary);
}

.white { 
    color: var(--color-max-contrast);
}

.secondary { 
    color: var(--color-secondary);
}

.light-gray {
    color: var(--color-light-gray);
}

.alert-primary {
    color: var(--color-alert-primary);
}

.highlight { 
    color: var(--color-highlight);
}

.light-blue {
    color: var(--color-light-blue);
}

.green { 
    color: var(--color-green);
}

.pointer {
    cursor: pointer;
}

.text-small {
    font-size: 0.9em;
}

.info {
    background-color: var(--color-info) !important;
}

#progressBar {
    border-radius: 10px;
    position: relative;
    width: 100%;
    height: 2.0em;
    background-color: var(--color-green-faded);
    color: var(--color-progress-bar);
}
  
#barStatusText {
    position: absolute;
    width: 100%;
    height: 100%;
    text-align: center;
    font-size: 1.1em;
    padding-top: 0.4em;
    padding-bottom: 0.4em;
    z-index: 999;
}

#barStatus {
    border-radius: 10px;
    position: absolute;
    width: 8%;
    height: 100%;
    background-color: var(--color-green);
    z-index: 998;
}

.task_text {
    font-size: 1.0em;
    font-family: "Roboto",  sans-serif;
}

.cm-editor {
    border-radius: 10px;
    border: 2px solid var(--color-cm-editor) !important;
    height: auto !important;
    font-size: 1.3em !important;
    margin-bottom: 10px;
}

.TaskBlock pre .cm-editor {
    border: transparent !important;
}

.TaskBlock pre .cm-editor .cm-gutters {
   display: none;
}

pre + .cm-editor .cm-gutters  {
    display: none;
}

.cm-lineNumbers {
    color:var(--color-chapter-contents-icon) !important;
    
}

.cm-gutters {
    border-right:  2px solid var(--color-cm-editor) !important;
}

pre:empty {
    display: none;
}
  
.TaskCompleted {
    border: 2px solid var(--color-green) !important;
}

.TaskInProgress {
    border: 2px solid var(--color-highlight) !important;
}

.TaskNotStarted {
    border: 2px solid var(--color-primary-lighter) !important;
}

.TaskBlock {
    border-radius: 10px;
    padding: 10px;
    margin-bottom: 20px;
    margin-top: 20px;
    position: relative;
}

.MarginBottom {
    margin-bottom: 25px;
}

.TaskBlock .TaskName {
    position: absolute;
    top: 0;
    left: 0;
    margin-top: -0.8em;
    margin-left: 30px;

    font-size: 1.0em;
    line-height: 1.2em;

    border-radius: 5px;
    padding: 5px;
    color: var(--color-task-status-label);
}


.ExampleBlock {
    position: relative;
}

.TaskBlock .TaskStatusLabel {
    position: absolute;
    top: 0;
    right: 0;
    margin-top: -0.8em;
    margin-right: 30px;

    font-size: 1.0em;
    line-height: 1.2em;

    border-radius: 5px;
    padding: 5px;
    color: var(--color-task-status-label);
}

.TaskStatusLabelNotStarted {
    background: var(--color-primary-lighter);
}

.TaskStatusLabelOk {
    background: var(--color-green);
}

.TaskStatusLabelErr {
    background: var(--color-highlight);
}

.cm-activeLine {
    background-color: transparent !important;
}

.cm-focused .cm-activeLine {
    background-color: var(--color-ide-active-line) !important;
}

.cm-focused {
    outline: transparent !important;;
}

.cm-gutters, .cm-activeLineGutter {
    background-color: transparent !important;
}

p img {
    max-width: 100%;
}

.task_hint {
   display: none;
}

.task_answer {
    display: none;
 }

.modal-content .task_hint {
   display: block;
}

.modal-content .task_answer {
    display: block;
 }

.user_code_output {
    border-radius: 10px;
    padding: 10px;
    font-family: "Courier New","Courier","Lucida Sans Typewriter";
    color: var(--color-max-contrast);
    background-color: var(--color-console);
    max-height: 400px !important;
    overflow: auto;
}

#markdown-content {
    visibility: hidden;
    line-height: 1.7em;
}

ul li::marker {
    color: var(--color-smoky);
}

body {
    font-family: "Roboto",  sans-serif;
    color: var(--color-text-body);
    background-color: var(--color-body);
    margin: 0 !important;
    padding-bottom: 0 !important;
    height: 100% !important;
    min-height: 100vh;
    display:flex; 
    flex-direction:column;
}

h1 {
    font-size: 1.5em;
    font-weight: normal;
    color: var(--color-h1);
}

.smoky {
    color: var(--color-smoky) !important;
}

.main-icon {
    padding-right: 5px;
    color: var(--color-main-icon);
    font-size: 1.5em;
}

h3 { font-weight: normal; }

#markdown-content h3 {
    font-weight: bold;
}

header {
    padding-top: 3px !important;
    font-size: 1.4em;
    font-weight: normal;
    background-color: var(--color-header-bg);
    width: 100%;
}

.feedback_form {
    width: 100%;
    font-size: 1.0em;
    color: var(--color-text-body);
    border-radius: 10px;
    border: 2px solid var(--list-item-border);
    background-color: transparent;
    font-family: "Roboto",  sans-serif;
    padding: 10px;
}

.feedback_form::placeholder {
    font-size: 1.0em;
    font-family: "Roboto",  sans-serif;
}

.header-img {
    height: 2.5em;
    width: 2.5em;
}

.wrapper-contents-list {
    position: absolute;
    left: 0;
    width: 2.2em;
    cursor: pointer;
}

.center-div {
    position: relative;
    max-width: 960px;
    width: 100%;
    margin: auto;
}

.sidebar {
    height: 100%;
    width: 0;
    position: fixed;
    z-index: 1;
    top: 0;
    left: 0;

    overflow-x: hidden;
    transition: 0.5s;

    box-shadow: 0px 8px 16px var(--color-shadow);
    background-color: var(--color-sidebar-bg);
  }

.text-sidebar-title {
    color: var(--color-sidebar-title);
}

.sidebar a {
    padding: 8px 8px 8px 32px;
    font-size: 1.2em;
    display: block;
    transition: 0.3s;
}

    
.sidebar p {
    padding: 8px 8px 8px 32px;
    font-size: 1.4em;
    display: block;
    transition: 0.3s;
}
  
  
.sidebar .closebtn {
    position: absolute;
    top: 0;
    right: 25px;
    font-size: 3em;
    margin-left: 50px;
    color: var(--color-sidebar-close);
}
  
.closebtn:hover,
.closebtn:focus {
    text-decoration: none;
    cursor: pointer;
}

#main {
    transition: margin-left .5s;


        display:grid;
        grid-template-rows:auto 1fr auto;
        grid-template-columns:100%;
     
        /* fallback height */
        min-height:100vh;
     
        /* new small viewport height for modern browsers */
        min-height:100svh;
     
}

.contents-list {
    position: fixed;
    margin-bottom: 10px;
    margin-left: -50px;
}

.chapter-contents-icon {
    font-size: 2.5em;
    color: var(--color-chapter-contents-icon);
    margin-top: 0.6em;
}

.object-link {
    pointer-events: none;
}

@media only screen and (max-width: 1100px){
    .contents-list {
        visibility: hidden !important;
    }

    .desktop-only {
        display: none !important;
    }
}

.icon-copy {
    padding-left: 10px;
    color: var(--color-text-about);
    font-size: 1.2em;
    cursor: pointer;
}

.icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.125em;
  }

.header-user {
    width: 2.5em;
}

.block {
    display: inline-block;
}

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

.header-left-div {
    flex-grow: 1;
    align-items: center;
}

.chapters-list-div {
    display: flex;
}

.list-div {
    flex-grow: 1;
}

.header-text {
    padding-left: 5px;
    font-size: 1.0em;
    font-weight: normal;
}

.header-text-right {
    padding-left: 30px;
    font-size: 0.8em;
    font-weight: normal;
}

.chapter-item {
    border-radius: 10px;
    border: 2px solid var(--color-light-gray);
    padding: 15px;
    margin-top: 5px;
    margin-bottom: 10px;
}

.header-item {
    border: none;
    padding-left: 15px;
    padding-right: 15px;
    margin-top: 5px;
    margin-bottom: 10px;
}

.chapter-item-light {
    border: 2px solid var(--color-light-item);
}

.list-item {
    border-radius: 10px;
    border: 2px solid var(--list-item-border);
    padding-left: 50px;
    padding-right: 50px;
    padding-top: 25px;
    padding-bottom: 25px;

    margin-top: 20px;
    margin-bottom: 20px;
    background-color: var(--list-item-bg);
    box-shadow: 0px 4px 8px var(--color-shadow);
}

.list-item-dark {
    background-color: var(--color-primary) !important;
    color: var(--color-highlight-light) !important;
}

.pr {
    padding-right: 5px !important;
}

.chips {
    border-radius: 20px;
    border: 2px solid var(--color-chips);
    padding-top: 5px;
    padding-bottom: 5px;
    padding-left: 10px;
    padding-right: 10px;
    margin-top: 10px;
    margin-bottom: 10px;
}

.info-block {
    text-align: center;
    border-radius: 20px;

    background-color: var(--color-light-blue);
    color: var(--color-blue);
    padding-top: 15px;
    padding-bottom: 15px;
    padding-left: 15px;
    padding-right: 15px;
    margin-bottom: 10px;
}

.padding-top-small {
    padding-top: 10px !important;
}

.indent-xsmall {
    margin-top: 10px;
}

.indent-small {
    margin-top: 15px;
}

.indent-left {
    margin-left: 1em;
}

.indent-left-small {
    margin-left: 0.8em;
}

.indent-left-xsmall {
    margin-left: 0.3em;
}

.indent-medium {
    margin-top: 30px;
}

.indent-large {
    margin-top: 80px;
}

.indent-not-large {
    margin-top: 50px;
}

.indent-progress {
    margin-top: 60px;
}

a {
    text-decoration: none;
}

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

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

a:active {
    color: var(--color-link-hover);
} 

a.footer:link {
    color: var(--color-highlight);
}

a.footer:visited {
    color: var(--color-highlight);
}
  
a.footer:hover {
    color: var(--color-highlight-intensive);
}

a.footer:active {
    color: var(--color-highlight-intensive);
}

a.white:link {
    color: var(--color-max-contrast);
}

a.white:visited {
    color: var(--color-max-contrast);
}
  
a.white:hover {
    color: var(--color-highlight-intensive);
}

a.white:active {
    color: var(--color-highlight-intensive);
}

a.text-secondary {
    color: var(--color-text-secondary);
}

.noselect {
    -webkit-touch-callout: none; /* iOS Safari */
      -webkit-user-select: none; /* Safari */
       -khtml-user-select: none; /* Konqueror HTML */
         -moz-user-select: none; /* Old versions of Firefox */
          -ms-user-select: none; /* Internet Explorer/Edge */
              user-select: none; /* Non-prefixed version, currently
                                    supported by Chrome, Edge, Opera and Firefox */
  }
  
.user-first-letter {
    border-radius: 50%;
    font-size: 1.0em;
    padding: 10px;
    text-align: center;
    background-color: var(--color-primary); 
    border: none; 
    color: var(--color-user-first-letter);
    height: 1.2em;
    width: 1.2em;
    line-height: 1.2em;
    cursor: pointer;
}

.user-first-letter:hover {
    color: var(--color-user-first-letter-hover);
}

.course-img {
    width: 2.5em;
    height: 2.5em;
}

.course-img-title {
    width: 2.0em;
}

.course-progress-img {
    width: 2.0em;
    margin-right: 10px;
}

.no-margin {
    margin: 0px !important;
}

.course-header {
    display: table-cell;
    text-align: center;
    vertical-align: middle;
}

.tg-header {
    display: table-cell;
    text-align: center;
    vertical-align: top;
}

.text-left {
    text-align: left !important;
    padding-top: 5px;
}

.left-padding {
    padding-left: 10px;
}

.btn {
    background-color: var(--color-primary);
    border: 2px solid var(--color-primary); 
    color: var(--color-max-contrast);
    padding: 5px 60px;
    font-family: "Roboto",  sans-serif;
    font-size: 1em;
    height: 2.1em !important;
    cursor: pointer;
    border-radius: 10px;
}

.btn:hover {
    background-color: var(--color-blue);
    border: 2px solid var(--color-blue);
}

.btn:disabled {
    background-color: var(--color-text-secondary);
    border: 2px solid var(--color-text-secondary);
}

form button {
    background-color: var(--color-primary);
    border: 2px solid var(--color-primary); 
    color: var(--color-max-contrast);
    padding: 5px 60px;
    font-family: "Roboto",  sans-serif;
    font-size: 1em;
    height: 2.1em !important;
    cursor: pointer;
    border-radius: 10px;
  }

.btn-vivid {
    background-color: transparent;
    border: 2px solid var(--color-btn-vivid); 
    font-family: "Roboto",  sans-serif;
    color:  var(--color-btn-vivid) !important;
    padding: 5px 15px;
    font-size: 1em;
    height: 2.1em !important;
    cursor: pointer;
    border-radius: 10px;
}

.btn-vivid:hover {
    border: 2px solid var(--color-btn-vivid-hover);
    color: var(--color-btn-vivid-hover) !important;
}

.btn-white {
    background-color: transparent;
    border: 2px solid var(--color-btn-white); 
    font-family: "Roboto",  sans-serif;

    color:  var(--color-btn-white);
    padding: 5px 15px;
    font-size: 1em;
    height: 2.1em !important;
    cursor: pointer;
    border-radius: 10px;
}

.btn-white:disabled {
    border: 2px solid var(--color-text-secondary) !important;
    color: var(--color-text-secondary) !important;
}

.btn-white:hover {
    border: 2px solid var(--color-btn-white-hover);
    color: var(--color-btn-white-hover);
}

.btn-gray {
    background-color: transparent;
    border: 2px solid var(--color-btn-gray) !important; 
    font-family: "Roboto",  sans-serif;
    color:  var(--color-btn-gray) !important;
    padding: 5px 15px;
    font-size: 1em;
    height: 2.1em !important;
    cursor: pointer;
    border-radius: 10px;
}

.square {
    height: 2.1em !important;
    width: 2.1em !important;
    padding: 5px 5px !important;
    text-align: center !important;
}

.icon-login-social {
    height: 2.1em !important;
    width: 2.1em !important;
    margin-right: 5px;
    margin-bottom: 20px;
    margin-top: 5px;
    border-radius: 5px;
}

.btn-gray:hover {
    border: 2px solid var(--color-blue)  !important; 
    color: var(--color-blue) !important; 
}

footer {
    font-size: 0.9em;
    font-weight: normal;
    color: var(--color-highlight);
    background-color: var(--color-secondary);
    width: 100%;
    margin-top: 60px;
    padding-top: 30px;
    padding-bottom: 30px;
}

.footer-img {
    width: 1.8em;
    padding-right: 10px;
}
.footer-img-small {
    width: 1.5em;
}

.author-photo {
    border-radius: 50%;
    width: 2.2em;
    height: 2.2em;
}

.author-photo-large {
    border-radius: 50%;
    width: 10em;
    height: 10em;
}

.author-photo-medium {
    border-radius: 50%;
    width: 5em;
    height: 5em;
}

.author-container-top {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;

    -ms-flex-align: top;
    -webkit-align-items: top;
    -webkit-box-align: top;
    align-items: top;
}

.author-container {
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;

    -ms-flex-align: center;
    -webkit-align-items: center;
    -webkit-box-align: center;
    align-items: center;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-modal-overlay);
  }

.modal-content {
    border-radius: 10px;
    background-color: var(--color-modal);
    padding: 10px;
    padding-bottom: 20px !important;

    position: fixed !important;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    overflow: auto;

    width: 800px;
    max-width: 95%;

    max-height: 80%;
  }

  .close {
    color: var(--color-sidebar-close);
    float: right;
    font-size: 2em;
    font-weight: bold;
    padding: 10px !important;
  }
  
  .close:hover,
  .close:focus {
    text-decoration: none;
    cursor: pointer;
  }

  ::placeholder {
    color: var(--color-placeholder);
    opacity: 1; /* Firefox */
  }
  
  ::-ms-input-placeholder { /* Edge 12 -18 */
    color: var(--color-placeholder);
  }

input {
    background-color: transparent;
    color: var(--color-text-body);

    border: 2px solid var(--color-input-border); 

    padding: 5px 15px;
    font-size: 1em;

    border-radius: 10px;
}

input:focus{
    outline: none;
    border: 2px solid var(--color-primary-lighter);
}

.form-label {
    margin-bottom: 5px;
}

.block-in-modal {
    margin: 20px;
}

.dropdown {
    float: right;
    overflow: hidden;
    padding: 5px;
}
  
.dropdown-content {
    border-radius: 10px;
    display: none;
    position: absolute;
    background-color: var(--color-dropdown-contents);
    min-width: 160px;
    box-shadow: 0px 5px 10px 0px var(--color-shadow);
    z-index: 1;
}

.tasks-count-div {
    min-width: 3em !important;
}

.tiny_link {
    font-size: 0.9em !important;
    margin-left: 10px;
}

#theme_switch_btn {
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -o-user-select: none;
    user-select: none;
    cursor: pointer;
}

@media only screen and (max-width: 1000px){

    .feedback_form {
       box-sizing: border-box;
    }

    .cm-editor {
        font-size: 1.2em !important;
    }

    .dropdown-content {
        right: 0px;
    }

    .cm-editor {
        padding-top: 10px;
        padding-bottom: 10px;
        margin-bottom: 10px;
    }

    .list-item {
        padding-left: 8px;
        padding-right: 8px;
    }

    .dropdown {
        padding-right: 5px;
    }

    .header-img {
        width: 2.0em;        padding-left:5px;
        padding-right: 5px;
        padding-top: 5px;
        height: 2.0em;
    }

    .footer {
        padding-left: 5px;
    }

    h1 {
        padding-left: 5px;
    }

    .left-padding-mobile {
        padding-left: 5px;
    }

    .breadcrumps {
        padding-left: 5px;
        padding-right: 5px;
    }

    .course-img-title {
        padding-left: 5px;
    }

    .header-text-right {
        padding-left: 10px;
        font-size: 0.7em;
        font-weight: normal;
    }

    #theme_switch_btn {
        padding-left: 5px;
    }

    .header-text {
        padding-left: 0px !important;
        font-size: 0.8em;
        font-weight: normal;
    }

    .btn-white {
        padding: 5px 5px;
    }

    .btn_example_for_playground {
        position: absolute;
        bottom: 0;
        right: 0;
        margin-bottom: 0.4em;
        margin-right: 0.4em;
    
        font-size: 0.9em;
        line-height: 1.1em;
    
        border-radius: 5px;
        padding: 5px;
        background-color: var(--color-body) !important;
    }
}

@media all and (min-width: 1001px) {
    .btn_example_for_playground {
        position: absolute;
        top: 0;
        right: 0;
        margin-top: 0.9em;
        margin-right: 0.9em;
    
        font-size: 1.0em;
        line-height: 1.2em;
    
        border-radius: 5px;
        padding: 5px;
    }
}

.dropdown-content a {
    border-radius: 10px;
    font-size: 0.9em;
    padding: 12px 16px;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {
    border-radius: 10px;
    background-color: var(--color-dropdown-hover);
}

.dropdown:hover .dropdown-content {
    border-radius: 10px;
    display: block;
}

.loader {
    border: 8px solid var(--color-light-gray);
    border-radius: 50%;
    border-top: 8px solid var(--color-green);
    width: 5px;
    height: 5px;
    -webkit-animation: spin 2s linear infinite; /* Safari */
    animation: spin 2s linear infinite;
    padding: 10px;
    float: left;
}

.text-loader {
    margin-left: 10%;
    padding: 10px;
    height: 100%;
}

.text-sender {
    margin-left: 30px;
    padding: 10px;
    padding-left:20px;
    height: 100%;
    color: var(--color-text-secondary);
}

.vis_hid {
    display: none !important;
}


p:has(+ div#id_usable_password) {
    display: none !important;
  }
  #id_usable_password {
    display: none !important;
  }

/* Safari */
@-webkit-keyframes spin {
    0% { -webkit-transform: rotate(0deg); }
    100% { -webkit-transform: rotate(360deg); }
}
  
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

blockquote {
    font-style: italic;
    color: var(--color-blockquote);
    text-align: right;
    margin-right: 10px !important;
    margin-left: 10px !important;
}

code {
    color: var(--color-code) !important;
    font-size: 1.25em !important;
    overflow: auto !important;
    background: var(--color-code-bg) !important;
    padding-left: 3px !important;
    padding-right: 3px !important;
    padding-top: 2px !important;
    padding-bottom: 2px !important;
    border-radius: 4px !important;
}

pre code {
    padding-left: 3px !important;
    padding-right: 3px !important;
    padding-top: 5px !important;
    padding-bottom: 5px !important;
    border-radius: 4px !important;
    margin: 0px !important;
    width: 100%;
    display: inline-block;
    box-sizing: border-box;
}

pre {
    overflow: auto;
    padding-left: 3px !important;
    padding-right: 3px !important;
    padding-top: 5px !important;
    padding-bottom: 5px !important;
    border-radius: 4px !important;
    margin: 0px !important;
    width: 100%;
    line-height: 1 !important;
}

h2 {
    margin-top: 40px;
}

.breadcrumps {
    margin-top: 2.0em;
    margin-bottom: 10px;
    color: var(--color-breadcrumps);
    font-size: 1.0em;
}

.chapter-right-part {
    text-align: right;
}

.chapter-btn {
    margin-top: 5px;
    margin-bottom: 5px;
}

.margin-horisontal-small {
    margin-right: 20px;
    margin-left: 10px;
}

.margin-horisontal-medium {
    margin-right: 20px;
    margin-left: 30px;
}

.btn-choice {
    margin: 10px;
}

table {
    border-collapse: collapse;
    font-size: 0.95em;
    border-radius: 4px !important;
    
    color: var(--color-code) !important;
    
}

table, th, td {
    border: 2px solid var(--list-item-border);
    padding-left: 5px;
    padding-right: 5px;
  }

tr:hover {background-color: var(--color-green-faded);}

.captcha {
    display:block;
    margin-bottom: 8px;
    border-radius: 5px;
}