* {
  box-sizing: 100%;
}

:root {
  --theme-color: #f9fafb;

  --body-font: "Poppins", sans-serif;
  --hover-menu-bg: rgba(12 15 25 / 30%);

  --dropdown-bg: #21242d;
}

.video-bg {
  position: fixed;
  right: 0;
  top: 0;
  width: 100%;
  height: 100%;
}

video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.dark-light {
  position: fixed;
  bottom: 50px;
  right: 30px;
  background-color: var(--dropdown-bg);
  box-shadow: -1px 3px 8px -1px rgba(0, 0, 0, 0.2);
  padding: 8px;
  border-radius: 50%;
  z-index: 3;
  cursor: pointer;
}

svg {
  width: 24px;
  flex-shrink: 0;
  fill: #ffce45 !important;
  stroke: #ffce45;
  transition: 0.5s;
}

.light-mode .dark-light svg {
  fill: transparent;
  stroke: var(--theme-color);
}

.light-mode {
  --theme-bg-color: rgb(255 255 255 / 31%);
  --theme-color: #3c3a3a;
  --inactive-color: #333333;
  --button-inactive: #3c3a3a;
  --search-bg: rgb(255 255 255 / 31%);
  --dropdown-bg: #f7f7f7;
  --overlay-bg: rgb(255 255 255 / 30%);
  --dropdown-hover: rgb(236 236 236);
  --border-color: rgb(255 255 255 / 35%);
  --popup-bg: rgb(255 255 255);
  --hover-menu-bg: rgba(255 255 255 / 35%);
  --scrollbar-bg: rgb(255 253 253 / 57%);
  --content-title-color: --theme-color;
}

body.light-mode:before,
body.light-mode .video-bg:before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100vh;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.72) 0%,
    rgb(255 255 255 / 45%) 100%
  );
  backdrop-filter: saturate(3);
}

.dark-light svg {
  fill: transparent;
  stroke: var(--theme-color);
}
.profile-img {
  border: 2px solid var(--theme-bg-color);
}
.content-section ul {
  background-color: var(--theme-bg-color);
}
.pop-up__title {
  border-color: var(--theme-color);
}
.dropdown.is-active ul {
  background-color: rgb(255 255 255 / 94%);
}

.main-tab {
  position: absolute;
  background: rgba(0, 0, 0, 0.4);
  width: 80%;
  border-radius: 1%;
  display: block;
  box-sizing: content-box;
}

body {
  margin: 10%;
  margin-top: 2%;
  margin-bottom: 2%;

  background-color: aliceblue;
}
.top {
  background: rgba(0, 0, 0, 0.1);
  position: static;
  color: rgba(255, 255, 255);
  top: 0;
  width: 100%;
  font-size: 25px;
  padding: 1%;
}
H1 {
  text-align: center;
  font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
    "Lucida Sans", Arial, sans-serif;
  font-weight: 800;
  font-size:130%;
  padding: 1%;
  margin: 2%;
}

nav {
  background: rgb(0, 0, 0);

  padding: 1%;
  color: white;
  position: sticky;
  top: 0px;
  margin-top: 0px;
}

.networks {
  padding: 3px;
  width: 3%;
  transition: width 0.9s;
  margin: 1px;
  margin-left: 15px;
}
.networks:hover {
  width: 3.5%;
}

.tab {
  float: left;
  border: 1px solid rgba(0, 0, 0, 0.3);
  display: block;

  background-color: rgba(0, 0, 0, 0.1);
  overflow: auto;
  flex-shrink: 0;
  width: 15%;
  height: none;
  margin-bottom: 1%;
}
.tab button {
  display: block;
  margin-bottom: 2%;
  background-color: inherit;
  color: rgb(255, 255, 255);
  padding: 6%;
  border-radius: 3px;
  width: 100%;
  border: none;
  outline: none;
  text-align: center;
  cursor: pointer;
  transition: 0.2s;
  font-size: 14px;
}
.tab button:hover {
  background-color: gray;
}
.tab button.active {
  background-color: #006400;
}
.demo2 {
  float: left;
  padding: 30px 20px 20px 30px;
  margin-top: none;

  width: 65%;
  border-left: none;
  height: 100%;
}
.code {
  background-color: black;
  color: rgb(6, 255, 47);
  font-size: 14px;
  padding: 4px;
  padding-left: 10px;
  padding-right: 10px;
}
h2 {
  font-size: 35px;
  color: aliceblue;
}
p,
h4 {
  line-height: 30px;
  color: white;
  font-size: 15px;
}

.link {
  color: greenyellow;
}


@media all and (max-width:1120px ) {
 
  H1 {
    text-align: center;
    font-family: "Trebuchet MS", "Lucida Sans Unicode", "Lucida Grande",
      "Lucida Sans", Arial, sans-serif;
    font-weight: 10px;
   
    padding: 6px;
    margin: 4px;
  }

.tab button {
  
  font-weight: 400;
  font-size: 75%;
}


.networks {
  padding: 1.5px;
 
}
p,
h4 {
  font-size: 12.5px;
}
.tab{
  width:19%;
}
  
}





@media all and (max-width: 730px) {
 
  nav {
    background-color: rgb(0, 0, 0,0.6);
    border-radius:4px;
    
    
  }

  .networks {
    padding: 4px;
    width: 35px;
        
  }
  .networks:hover {
    width: 42px;
  }
  .tab {  

    background-color: rgba(0, 0, 0,0.2);
    width: 100%;
    height: none;
  }
  .tab button {
    padding: 10px 12px;
    width: 100%;
    margin-bottom: 0.5%;
    
  }
  .tab button:hover {
    background-color: gray;
  }
  .tab button.active {
    background-color: #00f0f8de;
  }
  h2 {
    font-size: 28px;
  }
  
svg {
  width: 18px;
  
  
}
}





@media all and (max-width: 550px) {
  H1 {
    font-weight: 10px;
    font-size: 25px;
    padding: 3px;
    margin: 2px;
  }
  .networks {
    padding: 1.5px;
    width: 25px;

    transition: width 1s;
    margin: 1px;
    margin-left: 15px;
  }
  .networks:hover {
    width: 30px;
  }
  .tab button {
    padding: 6px 8px;

    font-size: 12px;
  }
  h2 {
    font-size: 22px;
  }
  p {
    font-size: 12px;
    
  }
  .demo2 {
  
    width: 90%;
  }
  svg {
    width: 18px; 
  }
  
    
}