@import url("https://fonts.googleapis.com/css2?family=Montserrat&family=Ubuntu:wght@300&display=swap");
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: lightgrey;
}
.content {
  min-height:90vh;
  background-color: white;
  font-family: "Ubuntu", sans-serif;
  font-size: 9pt;
}

main {
  height: 100vh;
  background-color: white;
  font-family: Arial, Helvetica, sans-serif;
  text-align: left;
}

.pust_logo {
  width: 3.6em;
  margin: 1em;
  margin-right: 1em;
  margin-top: 0.2em;
  margin-left: 1em;
}
header {
  font-family: "Montserrat", sans-serif;
  text-align: center;
  background-color: green;
  color: white;
  padding-top: 1em;
  padding-bottom: 1em;
}
header h2 {
  color: skyblue;
  /*color:yellowgreen*/
}
/* navbar starts */
nav {
  overflow: visible;
}
nav ul {
  list-style-type: none;
  display: flex;
  justify-content: center;
  background-color: #d9bfff;
  flex-wrap: wrap;
  overflow: visible;
}
nav ul li {
  text-align: center;
  position: relative;
}
li a {
  padding: 1rem 4rem;
  width: 100%;
  text-decoration: none;
  display: inline-block;
  color: white;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.1em;
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
}

.not-hidden {
  display: none;
}

/* .dropdown-content{
  display: none;
} */
.dropdown:hover .dropdown-menu {
  display: block;
}



/* navbar ends*/

.welcome{
  padding: 1rem 2rem;
  display: flex;
  flex-wrap: row wrap;
  justify-content: space-between;
}
.welcome p{
  text-align: justify;
}
.welcome .photo{
  padding: 0em 2em;
  word-spacing: 0.2em;
  line-height: 1.5rem;
}
.ice-logo{
  padding: 0em 2em;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  flex-wrap: wrap;
  width: 100%;
}
.ice-logo img{
  width: 15rem;
  height: 15rem;
  margin-top: 2rem;
}
.ice-logo .ice-image{
  width: 20rem;
}
.program {
  background-color: rgb(8, 170, 235);
  color: white;
  margin: 1em;
  padding: 1em;
  text-align: center;
  border-radius: 0.3em;
}

.semister {
  background-color: white;
}
.semister h3 {
  margin-top: 1em;
  text-align: center;
  font-size: 1.5em;
}
table {
  margin: 0 auto;
  border-collapse: collapse;
  width: 90%;
  text-align: center;
  box-sizing: content-box;
}




tr:hover td {
  color: black;
}
th {
  border: 1px solid black;
  background-color: #952bb9;
  color: white;
  padding: 0.5rem 0.5rem;
}
td {
  border: 1px solid black;
  color: black;
  padding-top: 0.3em;
  padding-bottom: 0.3em;
  padding-left: 0.5em;
  padding-right: 0.5em;
  word-spacing: 0.5em;
  text-align: left;
}
tbody tr td:nth-child(4),
tbody tr td:nth-child(2) {
  text-align: center;
}
.spacer td {
  border: none;
  background-color: white;
}
footer {
  background-color: green;
  color: white;
  padding: 0.5em 1em;
  text-align: center;
}
.owner {
  font-family: monospace;
}
.owner a {
  color: aqua;
  text-decoration: none;
}
.hi {
  font-size: 100px;
}

@media only screen and (min-width: 600px) {
  main {
    background-color: white;
    height: 100vh;
    margin: 0rem 5rem;
  }
  .pust_logo {
    width: 3.3em;
    float: left;
    margin-right: 1em;
    margin-top: 0.2em;
  }
  .header-text {
    margin-left: 5em;
  }
  header {
    text-align: left;
    clear: left;
  }
  .content {
    font-size: 11pt;
  }
  th {
    padding: 0.5rem 1rem;
  }
  td {
    padding: 0.5rem 1rem;
  }
}
.u li:hover{
  background-color:#005e5e;
}
/* navbar media queries starts */
@media only screen and (max-width: 1200px) {
  header{
    font-size: 0.5rem;
  }
  .welcome{
    flex-wrap: wrap;
    padding: 1em 1em;
    font-size: 0.9rem;
  }
.photo img{
  width: 15rem;
}
  .welcome .message{
    padding: 1em;
  }
  ul {
    flex-direction: column;
    align-items: center;
/*     align-items: flex-end; */
    font-size: 0.1rem;
  }
  .not-hidden {
    background-color: #6a0000;
    display: initial;
    text-align: center;
  }
   .not-hidden i{
    float: right;
  }
  .links:not(.not-hidden) {
    padding: 0;
    margin: 0;
    display: none;
  }
  li a {
    font-size: 1rem;
  }
  nav {
    background-color: #6a0000;
  }
  
}
/* navbar media queries ends */
@media only screen and (min-width: 1200px){
  .links:hover{
    background-color: #3f3636;
  }
}