/* Import Google font - Poppins */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans:ital,wght@0,100..900;1,100..900&family=Open+Sans:ital,wght@0,300..800;1,300..800&family=Syne:wght@400..800&display=swap");
@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-Regular.eot");
  src: local("Zona Pro Regular"), local("ZonaPro-Regular"),
    url("src/fonts/ZonaPro-Regular.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Regular.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Regular.woff") format("woff"),
    url("src/fonts/ZonaPro-Regular.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-Bold.eot");
  src: local("Zona Pro Bold"), local("ZonaPro-Bold"),
    url("src/fonts/ZonaPro-Bold.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Bold.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Bold.woff") format("woff"),
    url("src/fonts/ZonaPro-Bold.ttf") format("truetype");
  font-weight: bold;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-SemiBold.eot");
  src: local("Zona Pro SemiBold"), local("ZonaPro-SemiBold"),
    url("src/fonts/ZonaPro-SemiBold.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-SemiBold.woff2") format("woff2"),
    url("src/fonts/ZonaPro-SemiBold.woff") format("woff"),
    url("src/fonts/ZonaPro-SemiBold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro Ultra";
  src: url("src/fonts/ZonaPro-UltraItalic.eot");
  src: local("Zona Pro Ultra Italic"), local("ZonaPro-UltraItalic"),
    url("src/fonts/ZonaPro-UltraItalic.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-UltraItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-UltraItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-UltraItalic.ttf") format("truetype");
  font-weight: 900;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro Ultra";
  src: url("src/fonts/ZonaPro-Ultra.eot");
  src: local("Zona Pro Ultra"), local("ZonaPro-Ultra"),
    url("src/fonts/ZonaPro-Ultra.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Ultra.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Ultra.woff") format("woff"),
    url("src/fonts/ZonaPro-Ultra.ttf") format("truetype");
  font-weight: 900;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-Black.eot");
  src: local("Zona Pro Black"), local("ZonaPro-Black"),
    url("src/fonts/ZonaPro-Black.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Black.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Black.woff") format("woff"),
    url("src/fonts/ZonaPro-Black.ttf") format("truetype");
  font-weight: 900;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-Light.eot");
  src: local("Zona Pro Light"), local("ZonaPro-Light"),
    url("src/fonts/ZonaPro-Light.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Light.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Light.woff") format("woff"),
    url("src/fonts/ZonaPro-Light.ttf") format("truetype");
  font-weight: 300;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro Regular";
  src: url("src/fonts/ZonaPro-RegularItalic.eot");
  src: local("Zona Pro Regular Italic"), local("ZonaPro-RegularItalic"),
    url("src/fonts/ZonaPro-RegularItalic.eot?#iefix")
      format("embedded-opentype"),
    url("src/fonts/ZonaPro-RegularItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-RegularItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-RegularItalic.ttf") format("truetype");
  font-weight: normal;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro Hairline";
  src: url("src/fonts/ZonaPro-Hairline.eot");
  src: local("Zona Pro Hairline"), local("ZonaPro-Hairline"),
    url("src/fonts/ZonaPro-Hairline.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Hairline.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Hairline.woff") format("woff"),
    url("src/fonts/ZonaPro-Hairline.ttf") format("truetype");
  font-weight: 100;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-LightItalic.eot");
  src: local("Zona Pro Light Italic"), local("ZonaPro-LightItalic"),
    url("src/fonts/ZonaPro-LightItalic.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-LightItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-LightItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-LightItalic.ttf") format("truetype");
  font-weight: 300;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-BlackItalic.eot");
  src: local("Zona Pro Black Italic"), local("ZonaPro-BlackItalic"),
    url("src/fonts/ZonaPro-BlackItalic.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-BlackItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-BlackItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-BlackItalic.ttf") format("truetype");
  font-weight: 900;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-ExtraBold.eot");
  src: local("Zona Pro ExtraBold"), local("ZonaPro-ExtraBold"),
    url("src/fonts/ZonaPro-ExtraBold.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-ExtraBold.woff2") format("woff2"),
    url("src/fonts/ZonaPro-ExtraBold.woff") format("woff"),
    url("src/fonts/ZonaPro-ExtraBold.ttf") format("truetype");
  font-weight: 800;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-BoldItalic.eot");
  src: local("Zona Pro Bold Italic"), local("ZonaPro-BoldItalic"),
    url("src/fonts/ZonaPro-BoldItalic.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-BoldItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-BoldItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-BoldItalic.ttf") format("truetype");
  font-weight: bold;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-ExtraBoldItalic.eot");
  src: local("Zona Pro ExtraBold Italic"), local("ZonaPro-ExtraBoldItalic"),
    url("src/fonts/ZonaPro-ExtraBoldItalic.eot?#iefix")
      format("embedded-opentype"),
    url("src/fonts/ZonaPro-ExtraBoldItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-ExtraBoldItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-ExtraBoldItalic.ttf") format("truetype");
  font-weight: 800;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-SemiBoldItalic.eot");
  src: local("Zona Pro SemiBold Italic"), local("ZonaPro-SemiBoldItalic"),
    url("src/fonts/ZonaPro-SemiBoldItalic.eot?#iefix")
      format("embedded-opentype"),
    url("src/fonts/ZonaPro-SemiBoldItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-SemiBoldItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-SemiBoldItalic.ttf") format("truetype");
  font-weight: 600;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro Hairline";
  src: url("src/fonts/ZonaPro-HairlineItalic.eot");
  src: local("Zona Pro Hairline Italic"), local("ZonaPro-HairlineItalic"),
    url("src/fonts/ZonaPro-HairlineItalic.eot?#iefix")
      format("embedded-opentype"),
    url("src/fonts/ZonaPro-HairlineItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-HairlineItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-HairlineItalic.ttf") format("truetype");
  font-weight: 100;
  font-style: italic;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-Thin.eot");
  src: local("Zona Pro Thin"), local("ZonaPro-Thin"),
    url("src/fonts/ZonaPro-Thin.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-Thin.woff2") format("woff2"),
    url("src/fonts/ZonaPro-Thin.woff") format("woff"),
    url("src/fonts/ZonaPro-Thin.ttf") format("truetype");
  font-weight: 100;
  font-style: normal;
}

@font-face {
  font-family: "Zona Pro";
  src: url("src/fonts/ZonaPro-ThinItalic.eot");
  src: local("Zona Pro Thin Italic"), local("ZonaPro-ThinItalic"),
    url("src/fonts/ZonaPro-ThinItalic.eot?#iefix") format("embedded-opentype"),
    url("src/fonts/ZonaPro-ThinItalic.woff2") format("woff2"),
    url("src/fonts/ZonaPro-ThinItalic.woff") format("woff"),
    url("src/fonts/ZonaPro-ThinItalic.ttf") format("truetype");
  font-weight: 100;
  font-style: italic;
}
:root {
  --bg-color: #fff;
  --card-h2: #333;
  --card-p: #666;
  --h1: #11101d;
  --span-color: #fff;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Zona Pro", sans-serif;]
  scroll-behavior: smooth;
}

html {
  scroll-behavior: smooth;
  transition: background-color 0.2s ease;
  background-color: var(--bg-color);
}
.dark-mode {
  background-color: #101017;
  transition: background-color 0.2s ease;
}
.search-results {
  background-color: var(--bg-color);
  position: absolute;
  border-radius: 8px;
  width: 100%;
  height:auto;
  max-height: 200px;
  margin-top: 5px;
  overflow-y: auto;
  transition:all 0.2s ease;

}
.search-results::-webkit-scrollbar {
  display: none;
}
.search-results ul {
  list-style-type: none;
  padding: 10px 10px;
  transition:all 0.3s ease;
}
.search-results ul li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 5px;
  background-color: var(--bg-color);
  border-radius: 5px;
  padding: 8px;
  transition: all 0.2s ease;
  cursor: pointer;
  animation: slideOff 0.4s ease;
}
.search-results ul li:hover {
  background: rgba(255, 255, 255, 0.05);
  transform: scale(1.025);
}
.search-results ul li a {
  font-size: 10px;
  color:var(--span-color);
}
.input-field {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px 10px 5px;
  background-color: #fff;
  width: 100%;
  border-radius: 10px;

}
.search-wrapper{
  position:relative;
  width:500px;
  margin-left:10px;
  margin-right:10px;
}
.shadow{
  box-shadow: 0 5px 5px rgba(208, 208, 208, 0.2);
}
.input-field a {
  transform: scale(0.8);
  transition: all 0.2s ease;
}
.input-field a:hover {
  transform: scale(0.9);
}
.input-field a:active {
  transform: scale(0.8);
}
.input-field input {
  border: 0;
  padding: 5px;
  outline: 0;
  width: 100%;
}
.sidebar {
  position: fixed;
  height: 100%;
  width: 260px;
  background: var(--bg-color);
  padding: 15px;
  z-index: 9999;
  left: 0;
  transition: left 0.4s ease, background-color 0.2s ease;
}
.logo {
cursor: pointer;
}
.sidebar a {  
  text-decoration: none;

}

.bbg{
  color: red;
}
.menu-content {
  position: relative;
  height: 100%;
  width: 100%;
  margin-top: 40px;
  overflow-y: auto;
  overflow-x: hidden;

}
.menu-content::-webkit-scrollbar {
  display: none;
}
.menu-items {
  height: 100%;
  width: 100%;
  list-style: none;
  transition: transform 0.35s ease, opacity 0.2s ease;
  padding: 10px;
}
.submenu-active .menu-items {
  transform: translateX(-56%);
}
.menu-title {
  color: var(--span-color);
  font-size: 14px;
  padding: 15px 20px;
  z-index: 999;
}
.item {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 10px;
  padding-left: 10px;
}

.item i {
  margin-right: 5px;
  color: var(--span-color);
}

.item a {
  color: var(--span-color);
}
.item,
.submenu-item {
  padding: 16px;
  display: inline-block;
  width: 100%;
  border-radius: 12px;
  color: #fff;
}
.submenu-item span {
  color: var(--span-color);
}
.submenu-item i {
  color: var(--span-color);
}
.item,
.submenu .menu-title {
  transition: all 0.3s ease;
}
.item:hover {
  transform: scale(1.1);
  background: rgba(255, 255, 255, 0.05);
}

/* .item a {
  transition: all 0.2s ease;
}
.item:hover a {
  font-size: 18px;
} */

.item:active {
  background: rgba(255, 255, 255, 0.025);
  transform: scale(0.95);
}
.submenu-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #fff;
  cursor: pointer;
}
.submenu {
  position: absolute;
  height: 100%;
  width: 100%;
  top: 0;
  right: calc(-100% - 26px);
  height: calc(100% + 100vh);
  background: var(--bg-color);
  display: block;
  transition: all 0.2s ease;
}
.show-submenu ~ .submenu {
  display: block;
}
.hide {
  visibility: hidden;
  opacity: 0;
  transition: all 0.1s ease;
}
.item-content i{
 margin-right: 10px;
}
.hide-special {
  visibility: hidden;
  opacity: 0;
  transition: all 0.3s ease;
}
.submenu .menu-title {
  border-radius: 12px;
  cursor: pointer;
}
.submenu .menu-title i {
  margin-right: 10px;
  color: var(--span-color);
}
.menu-title i {
  transition: all 0.3s ease;
}

.menu-title:hover i {
  transform: translateX(-50%);
}
.navbar i {
  color: var(--span-color);
}
.navbar,
.main {
  left: 260px;
  width: calc(100% - 260px);
  transition: all 0.5s ease, background-color 0.2s ease;
  z-index: 1000;
}
.sidebar.close {
  left: -260px;
}
.sb-hide i {
  display:none;
}

.main::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: black;
  opacity:0;
  transition: all 0.4s ease;
  z-index:9999;
  pointer-events: none;

}
.navbar::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: black;
  opacity:0;
  transition: all 0.4s ease;
  z-index:9999;
  pointer-events: none;
}
@media (max-width: 600px) {
  .main {
    left:0;
    width: 100%;}
    .sidebar.close ~ .navbar::before,
.sidebar.close ~ .main::before {
  opacity:0;
}
.sidebar ~ .navbar::before,
.sidebar ~ .main::before {
  opacity:0.5;
}
  .input-field {
    width: 100%;
    padding: 5px 5px 5px 5px;
  }
  .sb-hide i {
    display:block;
  }

  .navbar{
    left:0;
    width: 100%;
  }

  .video-container iframe{
    width: 100%;
    height: 100%;
  }
}

.sidebar.close ~ .navbar,
.sidebar.close ~ .main {
  left: 0;
  width: 100%;
}
/* .navbar i {
  transition: all 0.3s ease;
}
.navbar i:hover {
  transform: scale(1.2);
}
.navbar i:active {
  transform: scale(0.95);
} */

.scale-animation {
  transition: all 0.3s ease;
}
.scale-animation:hover {
  transform: scale(1.2);
}
.scale-animation:active {
  transform: scale(0.95);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: fixed;
  color: #fff;
  padding: 15px 20px;
  font-size: 25px;
  background: var(--bg-color);
  pointer-events: auto;
  z-index: 2000;
}

#sidebar-close {
  position: relative;
  pointer-events: auto;
  cursor: pointer;
}
#point-left {
  margin-left: 10px;
  transition: all 0.2s ease;
}
.item:hover #point-left {
  margin-left: 15px;
}
.main {
  position: relative;
  padding: 20px;
  padding-top: 80px;
}
*:focus {
  outline: none;
}
* {
  -webkit-tap-highlight-color: transparent;
}
.main h1 {
  color: var(--h1);
  font-size: 2rem;
  margin-top: 5px;
  margin-bottom: 20px;
  text-align: left;
}
.authorP {
  color: var(--card-p);
}
.main p:not(.authorP) {
  color: var(--card-p);
  line-height: 1.6;
  text-align: justify;
  margin-bottom: 20px;
}

#downloadPresentation {
  background-color: #3480ff;
  color: white;
  padding: 10px 20px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  font-size: 1 rem;
  position: absolute;
  bottom: 20px;
  right: 20px;
  text-decoration: none;
  transition: all 0.2s ease;
}

#downloadPresentation:hover {
  background-color: #34b6ff;
  transform: scale(1.05);
  box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.1); /* Add a shadow effect */
}
#downloadPresentation:active {
  background-color: #3172e1;
  transform: scale(0.95);
  box-shadow: 0px 0px 0px 0px rgba(0, 0, 0, 0.3); /* Add a shadow effect */
}

@media screen and (min-width: 768px) {
  .main {
    padding-top: 100px;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    height: calc(100vh - 70px);
  }

  .main h1 {
    font-size: 2rem;
  }

  .main p {
    font-size: 1rem;
  }

  #downloadPresentation {
    position: static;
    margin-top: auto;
    margin-left: auto;
  }
}
li a {
  cursor: pointer;
}
/*форма*/
.container {
  max-width: 1100px;
  width: 100%;
  border: 2px solid white;
  background: var(--bg-color);
  border-radius: 6px;
  padding: 100px 60px 30px 40px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.2);
}
.container .content {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.container .content .left-side {
  width: 25%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-top: 15px;
  position: relative;
}
.content .left-side::before {
  content: "";
  position: absolute;
  height: 70%;
  width: 2px;
  right: -15px;
  top: 50%;
  transform: translateY(-50%);
  background: #f6f5f5;
}
.content .left-side .details {
  margin: 14px;
  text-align: center;
}
.content .left-side .details i {
  font-size: 30px;
  color: var(--h1);
  margin-bottom: 10px;
}
.content .left-side .details .topic {
  font-size: 18px;
  font-weight: 500;
}
.topic {
  color: var(--h1);
}
.content .left-side .details .text-one,
.content .left-side .details .text-two {
  font-size: 14px;
  color: #afafb6;
}

.container .content .right-side {
  width: 75%;
  margin-left: 75px;
}
.content .right-side .topic-text {
  font-size: 23px;
  font-weight: 600;
  color: var(--h1);
}
.right-side .input-box {
  height: 55px;
  width: 100%;
  margin: 12px 0;
}
.right-side .input-box input,
.right-side .input-box textarea {
  height: 100%;
  width: 100%;
  border: none;
  outline: none;
  font-size: 16px;
  background: #e8e8e9;
  border-radius: 6px;
  padding: 0 15px;
  resize: none;
}
.right-side .message-box {
  min-height: 110px;
}
.right-side .input-box textarea {
  padding-top: 6px;
}
.right-side .button {
  display: inline-block;
  margin-top: 12px;
}
.right-side .button input[type="button"] {
  color: #fff;
  font-size: 18px;
  font-family: "Noto Sans", sans-serif;
  outline: none;
  border: none;
  padding: 10px 28px;
  border-radius: 6px;
  font-size: 15px;
  background-color: #3480ff;
  cursor: pointer;
  transition: all 0.3s ease;
}
.backHome {
  color:var(--bg-color);
  font-size: 18px;
  font-family: "Noto Sans", sans-serif;
  outline: none;
  border: none;
  padding: 10px 28px;
  border-radius: 6px;
  font-size: 15px;
  background-color: #3480ff;
  cursor: pointer;
  transition: all 0.3s ease;

}
.backHome:hover {
  color:var(--span-color);
  background-color: var(--bg-color);
  border: 2px solid #34b6ff;
  transform: scale(1.05);
  box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.1);
}
.backHome:active {
  color:var(--span-color);
  background-color: var(--bg-color);
  border: 2px solid #34b6ff;
  transform: scale(1.05);
  box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.1);
}

.backHome:active {
  transform: scale(0.95);
  box-shadow: 0px 0px 0px 0px rgba(0, 0, 0, 0.3);
}
.button input[type="button"]:hover {
  background-color: #34b6ff;
  transform: scale(1.05);
  box-shadow: 0px 5px 15px 0px rgba(0, 0, 0, 0.1);
}
#notifications {
  cursor: pointer;
  position: fixed;
  right: 0px;
  z-index: 9999;
  bottom: 0px;
  margin-bottom: 22px;
  margin-right: 15px;
  max-width: 300px;
  transition: all 0.3s ease;
}
.button input[type="button"]:active {
  background-color: #3172e1;
  transform: scale(0.95);
  box-shadow: 0px 0px 0px 0px rgba(0, 0, 0, 0.3);
}
@media (max-width: 950px) {
  .container {
    width: 90%;
    padding: 30px 40px 40px 35px;
  }
  .container .content .right-side {
    width: 75%;
    margin-left: 55px;
  }
}
@media (max-width: 820px) {
  .container {
    margin: 40px 0;
    height: 100%;
  }
  .container .content {
    flex-direction: column-reverse;
  }
  .container .content .left-side {
    width: 100%;
    flex-direction: row;
    margin-top: 40px;
    justify-content: center;
    flex-wrap: wrap;
  }
  .container .content .left-side::before {
    display: none;
  }
  .container .content .right-side {
    width: 100%;
    margin-left: 0;
  }
}

/* /// */
.progress-bar {
  top: 0;
  position: absolute;
  width: 100%;
  height: 5px; /* Thin height */
  z-index: 9999; /* Ensure it's on top of other elements */
  opacity: 1; /* Initially fully visible */
  transition: opacity 0.5s ease-in-out; /* Fade-out transition */
}

.progress {
  height: 100%;
  background-color: #29d;
  width: 0%;
  transition: width 0.5s ease-in-out, opacity 0.3s ease; /* Adjust animation speed */
}

.progress.hidden {
  opacity: 0; /* Hidden when opacity is 0 */
}
.lecture-content {
  opacity: 0;
  animation: slideOff 0.4s ease forwards;
  position: relative;
  width: calc(100% - 30px);
  transition: all 0.5s ease;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  height: calc(100vh);
}

@keyframes slideOff {
  0% {
    transform: scale(1.05);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.wrapper {
  max-width: 1200px;
  margin: 20px auto;
  padding: 20px;
  text-align: center;
}
.wrapper p {
  font-size: 20px;
  text-align: left;
}
.wrapper h1 {
  font-size: 3em;
  text-align: left;
  color: #3480ff;
  margin-bottom: 20px;
}
.white {
  color: #fff;
}
.content-box {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.card {
  background: var(--bg-color);
  padding: 20px;
  border-radius: 10px;
  border: 2px solid #fff;
  box-shadow: 0 0px 0px rgba(12, 158, 254, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border 0.3s ease;
}
.cardAuthors {
  background: var(--bg-color);
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 0px 0px rgba(12, 158, 254, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border 0.3s ease;
}
.card:hover {
  transform: translateY(-5px);
  border: 2px solid #3480ff;
  box-shadow: 0 10px 20px rgba(12, 158, 254, 0.5);
}

.card i {
  font-size: 2rem;
  color: #3480ff;
  margin-bottom: 10px;
}

.card h2 {
  text-align: left;
  font-size: 1.5rem;
  color: var(--card-h2);
  margin-bottom: 10px;
}

.card p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--card-p);
}

@media (max-width: 991px) {
  .wrapper {
    padding: 25px;
  }

  .wrapper h1 {
    font-size: 2.5em;
  }

  .content-box {
    grid-template-columns: 1fr;
  }
}
::-webkit-scrollbar {
  width: 5px;
}


::-webkit-scrollbar-track {
  position: absolute;

}

::-webkit-scrollbar-thumb {
  background: #3480ff;
  border-radius: 10px;
  transition: background 0.5s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: #2966cc;
  @keyframes fadeAway {
    from {
      opacity: 1;
    }
    to {
      opacity: 0;
    }
  }