@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font: 14px Arial,sans-serif;
	margin: 0;
    }
.header {
    padding: 15px 20px;
    background: #40494D;
    color: white;
    }
.header h1 {
    font-size: 24px;
    }
.container {
    width: 100%;
    background: #f2f2f2;
    }
.nav, .section {
    float: left;
    padding: 20px;
    min-height: 170px;
    box-sizing: border-box;
    }
.nav {
    width: 20%;
	height:750px;
    background: #d4d7dc;
    }
.section {
    width: 80%;
	height:750px;
    text-align: center;
    background-image: url("image2.jpg");
	background-repeat:no-repeat;
	background-size: cover;
    background-size: 100% 100%;
    }
.nav ul {
    list-style: none;
    padding: 0px;
    margin: 0px;
    }

.clearfix:after {
    content: ".";
    display: block;
    height: 0;
    clear: both;
    visibility: hidden;
    }
.footer {
    background: #acb3b9;
    text-align: center;
    padding: 5px;
    }

.var h1{
    text-align: center;
    box-sizing: border-box;
    border: 2px ridge black;
    background:#E5E4E2;
    }
	
#testtube_button{
	background-color: #545D61;
  border: none;
  color: white;
  padding: 9px 11px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 19px;
  margin: 4px 2px;
  cursor: pointer;
}

#start_tap{
	background-color: #545D61;
  border: none;
  color: white;
  padding: 9px 28px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 19px;
  margin: 4px 2px;
  cursor: pointer;
}

#start_calc{
	background-color: #545D61;
  border: none;
  color: white;
  padding: 9px 19px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 19px;
  margin: 4px 2px;
  cursor: pointer;
}

#reset{
	background-color: #545D61;
  border: none;
  color: white;
  padding: 9px 41px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 19px;
  margin: 4px 2px;
  cursor: pointer;
}

#table{
	top:150px;
	left:450px;
	position: absolute;
}

#testtubeholder{
	top:0px;
	left:300px;
	position: absolute;
}

#tray{
	top:0px;
	left:300px;
	position: absolute;
}

#obj1 {
	top:150px;
	left:150px;
	position: absolute;
	animation: slide-top1 1s linear infinite;
	animation-iteration-count: 0;
}

#obj2 {
	top:150px;
	left:450px;
	position: absolute;
	animation: slide-top2 1s linear infinite;
	animation-iteration-count: 0;
}

#obj3 {
	top:150px;
	left:450px;
	position: absolute;
}

#testtube1{
	top:0px;
	left:628px;
	position: absolute;
}

#testtube2{
	top:3px;
	left:677px;
	position: absolute;
}

#led {
	
	top:330px;
	left:790px;
	position: absolute;
}

@keyframes slide-top2{
	0%{ transform: translateY(11px); }
	85%{ transform: translateY(-4px); }
	100%{ transform: translateY(11px); }
	animation-duration: 1s;
	animation-delay: 5s;
}

@-webkit-keyframes slide-top2{
	0%{ transform: translateY(11px); }
	85%{ transform: translateY(-4px); }
	100%{ transform: translateY(11px); }
	animation-duration: 1s;
	animation-delay: 5s;
}


@keyframes slide-top1{
	0%{ transform: translateY(25px); }
	85%{ transform: translateY(-4px); }
	100%{ transform: translateY(25px); }
	animation-duration: 1s;
}

@-webkit-keyframes slide-top1{
	0%{ transform: translateY(25px); }
	85%{ transform: translateY(-4px); }
	100%{ transform: translateY(25px); }
	animation-duration: 1s;
	animation-delay: 5s;
}

#timer {
  top:100px;
  right:4%;
  position:absolute;
  font-family: sans-serif;
  display: grid;
  height: 100vh;
  
}

.base-timer {
  position: relative;
  width: 200px;
  height: 200px;
}

.base-timer__svg {
  transform: scaleX(-1);
}

.base-timer__circle {
  fill: none;
  stroke: none;
}

.base-timer__path-elapsed {
  stroke-width: 7px;
  stroke: grey;
}

.base-timer__path-remaining {
  stroke-width: 7px;
  stroke-linecap: round;
  transform: rotate(90deg);
  transform-origin: center;
  transition: 1s linear all;
  fill-rule: nonzero;
  stroke: currentColor;
}

.base-timer__path-remaining.green {
  color: rgb(65, 184, 131);
}

.base-timer__path-remaining.orange {
  color: orange;
}

.base-timer__path-remaining.red {
  color: red;
}

.base-timer__label {
  position: absolute;
  width: 200px;
  height: 200px;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

#result_table{
	position:absolute;
}

#ok_btn{
	background-color: #545D61;
  border: none;
  color: white;
  padding: 25px 45px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 15px;
  margin: 4px 2px;
  cursor: pointer;
  border-radius:20%;
}

table, th, td {
  border: 3px solid black;
  border-collapse: collapse;
}

dummydeclaration { padding-left: 4em; } /* Firefox ignores first declaration for some reason */
tab0 { padding-left: 1em; }
tab1 { padding-left: 4em; }
tab2 { padding-left: 8em; }
tab3 { padding-left: 12em; }
tab4 { padding-left: 16em; }
tab5 { padding-left: 20em; }
tab6 { padding-left: 2em; }

#calc_time_form{
	position:absolute;
	top: 12%;
	left:35%;
	width:40%;
	height:370px;
    border-radius: 5px;
    background-color: pink;
    padding: 20px;
}



input[type=text], select {
  width: 100%;
  padding: 12px 20px;
  margin: 8px 0;
  display: inline-block;
  border: 1px solid #ccc;
  border-radius: 4px;
  box-sizing: border-box;
}


#questions{
  height:100%;
  width:70%;
  top:5px;
  position:absolute;
  margin: 0 ;
  font-size: 16px;
  //background-color: #cffffe;
  font-family: 'Montserrat', sans-serif;
  font-weight: 400;
}

.custom-box{
  max-width: 700px;
  background-color: #ffffff;
  margin:40px auto;
  padding:30px;
  border-radius: 10px;
}
.custom-box::before,
.custom-box::after{
  content: '';
  clear: both;
  display: table;
}
.custom-box.hide{
  display: none;
}

.home-box{
  font-size: 18px;
  color: #000000;
  font-weight: 500;
  margin-bottom: 15px;
  line-height: 25px;
}

.home-box h3 {
  font-size: 16px;
  margin-bottom: 10px;
  line-height: 22px;
  color: #000000;
  font-weight: 400;
}

.home-box p span{
  font-weight: 500;
}

.home-box .btn{
  margin-top: 20px;

}

#btn{
  margin-bottom:15px;
  padding: 15px 45px;
  background-color: #009688;
  color:#ffffff;
  border:none;
  border-radius: 5px;
  font-family: 'Montserrat', sans-serif;
  font-size: 16px;
  cursor: pointer;
  display: inline-block;
}

.quiz-box .question-number,
.quiz-box .question-text,
.quiz-box .option-container,
.quiz-box .next-question-btn,
.quiz-box .answers-indicator{
  width: 100%;
  float: left;
}
.quiz-box .question-number{
  font-size:18px;
  color:#009688;
  font-weight: 600;
  border-bottom: 1px solid #cccccc;
  padding-bottom: 10px;
  line-height: 25px;
}
.quiz-box .question-text{
  font-size: 22px;
  color: #000000;
  line-height: 28px;
  font-weight: 400;
  padding: 22px 0;
  margin: 0;
}

 .quiz-box .option-container .option{
  background-color: #cccccc;
  padding: 13px 15px;
  font-size: 16px;
  line-height: 22px;
  color: #000000;
  border-radius: 5px;
  margin-bottom: 10px;
  text-transform: capitalize;
  cursor: pointer;
  opacity: 0;
  animation: fadeIn 0.3s ease forwards;
  position: relative;
  overflow: hidden;
}

@keyframes fadeIn {
  0%{
    opacity: 0;
  }
  100%{
    opacity: 1;
  }
}

.quiz-box .option-container .option.correct::before{
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: green;
  z-index: -1;
  animation: slideInLeft .5s ease forwards
}
@keyframes slideInLeft {
  0%{
    transform: translateX(-100%);
  }
  100%{
    transform: translate(0%);
  }
}
.quiz-box .option-container .option.wrong::before{
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  height: 100%;
  width: 100%;
  background-color: red;
  z-index: -1;
  animation: slideInLeft .5s ease forwards
}
.quiz-box .option-container .option.wrong{
  color: #ffffff;
}
.quiz-box .option-container .option.correct::before{
  color: #ffffff;
}

.quiz-box .btn{
  margin: 15px 0;
}

.quiz-box .answers-indicator{
  border-top: 1px solid #cccccc;
}
.quiz-box .answers-indicator div {
  height: 40px;
  width: 40px;
  display: inline-block;
  background-color: #cccccc;
  border-radius: 50%;
  margin-right: 3px;
  margin-top: 15px;
}