.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);
}

.shadow {
    box-shadow: 0px 4px 8px var(--color-shadow);
}

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

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

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

.header-user {
    width: 2.5em;
}

.block {
    display: inline-block;
}

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

.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);
}

.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;
}


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;
}

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

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


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


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

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

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

.btn-white {
    background-color: var(--list-item-bg);
    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);
}


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.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);
}

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;
}

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;
}

.textedit {
    border-radius: 5px;
    border: 2px solid var(--list-item-border) !important;
    background-color: transparent;
    font-family: "Roboto",  sans-serif;
    padding: 3px;
    font-size: 0.9em;
    min-width: 250px;
}

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

.comment {
    font-size: 0.9em;
}


@media only screen and (max-width: 1000px){
    .comment {
        display: none !important;
    }

    .textedit {
        min-width: 50px;
        max-width: 90px;
    }
}

.bg-practice {
    background-color: var(--list-item-bg);
}

.buttons-practice {
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    border: 2px solid var(--list-item-border);

    padding-left: 10px;
    padding-right: 10px;
    padding-top: 15px;
    padding-bottom: 15px;

    position: relative;
    width: 100%;
}

#progressBar {
    border-radius: 10px;
    position: relative;
    width: 97%;
    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;
}

.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;
}

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

.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;
  }

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

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

.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;
}

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

.vis_hid {
    display: none !important;
}