@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800;900&display=swap');
*{
    margin: 0;
    padding: 0;
    box-sizing: 0; 
    font-family: 'Poppins', sans-serif;
}
a{
  text-decoration: none;
  color: #928e8e;
  font-size: 1em;
}
a:hover
{
  color: #fff;
}
.head
{
    position: relative;
    width: 100wh;
    height: 100vh;
}
.error
{
    color: #fff;
    font-size: 2em;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    
}
#head
{
    display: none;
}
button.error
{
    font-size: 1.5em;
    margin-top: 8%;
    padding: 5px 15px;
    background: #00dfc4;
    color: #1d2b3a;
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
    border: none;
}
button#btn,
button#search
{
    font-size: 1.5em;
    /* margin-top: 8%; */
    padding: 5px 15px;
    background: #00dfc4;
    color: #1d2b3a;
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
    border: none;
}
button.error:hover,
button.reset:hover,
button#btn:hover,
button#search:hover
{
    background: #fff;
    color: #1d2b3a;
    transition: all 0.2s ease-in-out;
    box-shadow: 0 5px 15px rgba(145, 92, 182, .4);
}
button.reset
{
    font-size: 1.5em;
    margin: 5px 5px;
    margin-bottom: 15px;
    padding: 5px 15px;
    background: #00dfc4;
    color: #1d2b3a;
    border-radius: 10px;
    transition: all 0.2s ease-in-out;
    display: block;
    margin: 0 auto;
    border: none;
}
button#reset
{
    display: block;
    margin: 0 95%;
    background: transparent;
    border: none;
    font-size: 1.5em;
    transition: all 0.5s ease-in-out;
}
button#reset:hover
{
    transform: rotate(90deg);
    transition: all 0.5s ease-in-out;
}
p{
  text-align: center;
  color: #fff;
}
p>a
{
  color: #00dfc4;
}

body
{
    background: #1d2b3a;
}
body>#container
{
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 92vh;
    flex-direction: column;
    gap: 30px;
}
input[type=number] 
{
    -moz-appearance: textfield;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button 
{
    -webkit-appearance: none;
    margin: 0;
}
.inputBox
{
    position: relative;
    width: 250px;
}
.inputBox input
{
    width: 100%;
    padding: 10px;
    border: 1px solid rgba(255,255,255,0.25);
    background: #1d2b3a;
    border-radius: 5px;
    outline: none;
    color: #fff;
    font-size: 1em;
    transition: 0.5s;
}
.inputBox span
{
    position: absolute;
    left: 0;
    top: 0;
    padding: 10px;
    pointer-events: none;
    font-size: 1em;
    color: rgba(255,255,255,0.25);
    transition: 0.5s;
    
}
.inputBox input:valid ~ span,
.inputBox input:focus ~ span
{
    background: #00dfc4;
    color: #1d2b3a;
    transform: translateX(10px) translateY(-7px);
    font-size: 0.65em;
    padding: 0 10px;
    border-left: 1px solid #00dfc4;
    border-right: 1px solid #00dfc4;
    letter-spacing: 0.2em;
    border-radius: 3px;
}
/* .inputBox:nth-child(2) input:valid ~ span,
.inputBox:nth-child(2) input:focus ~ span
{
    background: #00dfc4;
    color: #1d2b3a;
    border-radius: 2px;
} */
.inputBox input:valid,
.inputBox input:focus
{
    border: 1px solid rgba(255,255,255,0.25);
    background: #fff;
    color: #1d2b3a;
}
#totalStudents
{
    font-size: 1.5em;
    color: #fff;
    text-align: center;
    padding: 10px;
}
table {
    font-family: arial, sans-serif;
    border-collapse: collapse;
    width: 90%;
    margin: 0 auto;
    margin-top: 20px;
    margin-bottom: 20px;
    box-shadow: 0 0px 100px cadetblue;
  }
  
  td,th {
    border: 1px solid #dddddd;
    text-align: center;
    padding: 8px;
  }
  
  tr:nth-child(even) {
    background-color: #dddddd;
  }
  tr:nth-child(odd) {
    background-color: #00dfc4;
    color: #1d2b3a;
  }
  tr:nth-child(1) {
    background-color: #1d2b3a;
    color: #fff;
  }
  
  #loader{
    display: none;
  }
  .loader {
    height: 80vh;
    margin: 25px 5px;
    justify-content: center;
    align-content: center;
  }
  #results
  {
    padding-bottom: 50px;
  }
 
  .lds-hourglass {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
    top: 50%;
  }
  .lds-hourglass:after {
    content: " ";
    display: block;
    border-radius: 50%;
    width: 0;
    height: 0;
    margin: 8px;
    box-sizing: border-box;
    border: 32px solid #fff;
    border-color: rgb(97, 223, 129) transparent rgb(97, 223, 129) transparent;
    animation: lds-hourglass 1.2s infinite;
  }
  @keyframes lds-hourglass {
    0% {
      transform: rotate(0);
      animation-timing-function: cubic-bezier(0.55, 0.055, 0.675, 0.19);
    }
    50% {
      transform: rotate(900deg);
      animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
    }
    100% {
      transform: rotate(1800deg);
    }
  }
  
  @media screen and (max-width: 600px) {
    img
    {
        width: 80%;
    }
    #heading
    {
        font-size: 1.5em;
    }
  }