.vlabs-page {
  min-height: 100vh;
  overflow-x: hidden;
}

.vlabs-header {
  border-bottom: 8px solid #ff6600;
  font-family: "Raleway", sans-serif;
}

.vlabs-page-main {
  font-size: 1rem;
  font-family: "Open Sans", sans-serif;
}

.vlabs-lab-name {
  font-size: 1.7rem;
}

.vlabs-footer {
  font-size: 14px;
  background: rgb(17, 17, 17);
  font-family: "Raleway", sans-serif;
}

.vlabs-footer-sect-name {
  border-width: 0.15rem;
  border-style: solid;
  border-image: linear-gradient(to right, #3ec1d5 20%, #555 0%) 0% 0% 100% 0%;
}

.vlabs-lab-name {
  color: #2c99ce;
}

.vlabs-page-content {
  font-size: 1.2rem;
  overflow-y: hidden;
  font-family: "Raleway", sans-serif;
}

.social-links > a {
  color: #fff;
  border-radius: 50%;
  width: 36px;
  height: 36px;
}

.nav-menu a, .simulation-header .dropdown .nav-menu a{
  color: #3e6389;
}

.nav-menu .tasks a, .simulation-header .dropdown .nav-menu .tasks a{
  color: #5c5c5c;
}

.nav-menu a.current-item, .simulation-header .dropdown .nav-menu a.current-item{
  color: #ff6600;
}

.nav-menu .tasks, .simulation-header .dropdown .nav-menu .tasks{
  font-size: 1rem;
}

.nav-menu, .simulation-header .dropdown .nav-menu{
  font-size: 1.2rem;
  font-weight: bold;
}

.nav-menu-body{
  justify-content: center;
}

.sidebar .nav-menu-body{
  justify-content: start;
}

.sidebar {
  /* border-right: 2px dotted #89a7c4; */
  border-right: thin solid #e8e8e8;
  overflow: hidden;
  box-sizing: content-box;
}

.popupmenu .vlabs-logo{
  height: 2.5rem;
}

@media (max-width: 991px){
  .sidebar{
    max-height: 6000px;
    transition: max-height 1s ease-in;
    flex-wrap: nowrap;
    overflow-y: auto;
  }
  .vlabs-logo{
    height: 3rem;
  }

  .simulation-header{
    display: none !important;
  }
}

@media (min-width: 992px){
  .vlabs-hidden {
    display: none !important;
  }
  #toggle-menu-float-button{
    display: none;
  }
}

.vlabs-header a {
  margin: 0 1rem;
  padding: 0.5rem 1rem;
  color: #2c98cd;
}

.vlabs-header #headerNavbar a:hover {
  background: #77bb41;
  color: #fff;
  border-radius: 10px;
}

.vlabs-header #headerNavbar a {
  border-radius: 10px;
  transition: 0.3s;
}

.breadcrumbs,
.breadcrumbs a,
.breadcrumbs span {
  font-size: 1.6rem;
  color: #337ab7;
}

.page-name {
  color: #337ab7;
}

/*pre-test and post-test page styling fix*/

.answers {
  font-size: 1rem;
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}

.question {
  font-weight: 900;
}

/* feedback */
#feedback-btn {
  color: #2c99ce;
  border-color: #2c99ce;
}

/* to override markdown styling */
.markdown-body {
  font-family: "Raleway", sans-serif;
  color: #000000;
  text-align: justify;
}

/* to fix the  extended lines*/
.markdown-body table tr {
  border-top: 0;
}

h1,
h2,
h3 {
  color: #2c99ce;
}

h2 {
  padding-top: 2rem;
  padding-bottom: 1rem;
}

h3 {
  font-size: 1.1rem;
  color: #333333;
  padding-top: 1rem;
  text-decoration: underline;
}

/* for ds experiments - video iframes */
iframe {
  width: 100%;
  height: calc(100vw / 3);
}

.simulation-container {
  padding: 0px;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: absolute;
  top: 0;
  left: 0;
  background: #fff;
  display: flex;
  flex-direction: column;
}

.responsive-iframe {
  flex: 1;
}

/* Style the buttons that are used to open and close the accordion panel */
.accordion {
  display: none;
  margin-left: 20px;
  color: #337ab7;
  text-decoration: underline;
  text-align: right;
}

/* Add a background color to the button if it is clicked on (add the .active class with JS), and when you move the mouse over it (hover) */
/* .active,
.accordion:hover {
} */

/* Style the accordion panel. Note: hidden by default */
.panel {
  display: none;
  background-color: #eee;
  color: #444;
  padding: 18px;
  width: 100%;
  text-align: left;
  border: none;
  outline: none;
  transition: 0.4s;
}

/* Customize the label (the container) */
.container {
  display: block;
  position: relative;
  padding-left: 35px;
  margin-bottom: 12px;
  cursor: pointer;
  font-size: 22px;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* .form-check input[type="checkbox"] {
  width: 1rem;
  height: 1rem;
  margin: 5px 10px 0px 0px;
} */

/* Responsive layout - makes the three columns stack on top of each other instead of next to each other */
@media screen and (max-width: 600px) {
  .column {
    width: 100%;
  }
}

#difficulty-container,
.form-check {
  display: flex;
  align-items: center;
}

.form-check input[type="checkbox"] {
  margin: 0.5em;
  transform: scale(1.5);
}

.fix-spacing > *{
  padding-top: 0;
  margin-top: 1em;
}

#toggle-menu-float-button{
  position: absolute;
  bottom: 20px;
  right: 20px;
  z-index: 1;
  padding: 0.8em 1em;
  background: rgba(255, 255, 255, 0.9);
  cursor: pointer;
  border-radius: 0.5em;
  color: #fff;
  border: 3px solid rgba(0, 174, 255, 0.274);
  transform: scale(0.9);
}

.toggle-menu-icon{
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' width='30' height='30' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(0, 0, 0, 0.5)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
  height: 30px;
  width: 30px;
}

.btn-close {
  box-sizing: content-box;
  width: 1em;
  height: 1em;
  padding: .25em .25em;
  color: #000;
  background: transparent url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23000'%3e%3cpath d='M.293.293a1 1 0 011.414 0L8 6.586 14.293.293a1 1 0 111.414 1.414L9.414 8l6.293 6.293a1 1 0 01-1.414 1.414L8 9.414l-6.293 6.293a1 1 0 01-1.414-1.414L6.586 8 .293 1.707a1 1 0 010-1.414z'/%3e%3c/svg%3e") center/1em auto no-repeat;
  border: 0;
  border-radius: .25rem;
  opacity: .5;
}

.tools {
	top: 50%;
	transform: translate(0%, 25%);
}

.simulation-header .navbar-brand .vlabs-logo{
  height: 3rem;
}

.simulation-header h1, .simulation-header h2 {
  border: none;
  font-size: 1.5rem;
  padding: 0;
  flex: 2;
  text-align: center;

  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  overflow-wrap: break-word;
}

.simulation-header .dropdown {
  position: relative;
  display: inline-block;
}

.simulation-header .dropdown .backdrop {
  position: absolute;
  width: 100vw;
  background-color: rgba(0,0,0,0.2);
  height: 100vh;
}

.simulation-header .dropdown .nav-menu {
  width: fit-content;
  background-color: #fff;
  margin-top: 8px;
  padding: 10px;
  box-shadow: 0px 8px 14px 0px rgba(0,0,0,0.2);
  font-family: "Open Sans", sans-serif;
  max-height: 80%;
  overflow: auto;
}

.simulation-header .dropdown .nav-menu-body {
  justify-content: flex-start;
}

.simulation-header .dropdown .vlabs-hidden {
  display: none;
}

.expand-1{
  flex:1;
}