* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-image: url(images/saeulen.jpg);
}
.container {
  margin: 5%;
  background-color: rgb(2, 23, 35);
}
.heading {
  background-color: rgb(2, 23, 35);
  height: 4rem;
  width: 100%;
  color: rgb(247, 247, 179);
  display: flex;
  justify-content: center;
  gap: 1rem;
  align-items: center;
  font-size: 2.5rem;
  padding-bottom: 0.75rem;
}

.box {
  text-align: center;
  margin: 0;
  font: 400 1.4em "tahoma";
  padding: 1em;
  background: tomato;
  border: 1px solid red;
  color: #fff;
}

.main {
  width: 100%;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2%;
  background-position: 0 0;
  background-color: white;
  background-image: url(images/athensTemple.jpg);
  background-repeat: no-repeat;
  background-size: cover;
  background-position: 40% 50%;
}
.content {
  margin-left: -30%;
}
.calculations {
  display: flex;
  flex-direction: column;
  margin-left: 5px;
  line-height: 2;
  font-size: 24px;
  min-width: 310px;
}
.calculations span {
  margin-left: 100px;
  font-size: 28px;
}
#circle {
  position: relative;
  width: 300px;
  height: 300px;
  min-width: 300px;
  min-height: 300px;
  border-radius: 50%;
  box-shadow: 0 0 0px 1px white;
  margin: 20px;
  border: 3px solid white;
  font-size: 1.5rem;
}
#circle .durchmesser {
  border: 3px solid white;
  position: absolute;
  top: 50%;
  width: 100%;
  margin-top: -1px;
}
#circle .A,
#circle .C,
#circle .o {
  position: absolute;
  top: 50%;
  margin-top: -10px;
  left: -30px;
  font-size: 20px;
  color: white;
}
#circle .o {
  left: 50%;
  margin-top: 0;
  margin-left: -8px;
}
#circle .C {
  left: auto;
  right: -30px;
}
#circle .B {
  position: absolute;
  top: 6px;
  left: 100%;
  margin-left: 20px;
  transform: rotate(90deg);
  color: white;
}
#circle #picker {
  position: absolute;
  top: 50%;
  left: 50%;
  z-index: 2;
  height: 30px;
  margin-top: -15px;
  width: 50%;
  transform: rotate(-90deg);
  transform-origin: center left;
}
#circle #picker #picker-circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 3px solid rgb(231, 7, 171);
  margin: 0 -15px 0 auto;
  cursor: move;
}
#circle #picker #picker-circle:before {
  content: " ";
  width: 100%;
  display: block;
  height: 0px;
  position: absolute;
  top: 15px;
  left: 0px;
  border-top: 3px dashed rgb(16, 242, 16);
}
svg {
  width: 300px;
  height: 300px;
  position: absolute;
  top: 0;
  left: 0;
}
svg #line {
  stroke: rgb(192, 246, 14);
  stroke-width: 3;
}
svg #line2 {
  stroke: rgb(20, 161, 249);
  stroke-width: 3;
}

.details {
  visibility: hidden;
}
.legende {
  color: rgb(231, 7, 171);
  font-weight: 900;
}

.info {
  color: rgb(247, 247, 179);
  font-size: 1.5rem;
  margin: 1% auto;
  width: 100%;
  padding: 2%;
  text-align: center;
}
.intro {
  color: rgb(247, 247, 179);
  font-size: 1.6rem;
  margin: 1% auto;
  margin-bottom: -1%;
  width: 100%;
  padding: 2%;
  padding-bottom: 1%;
  text-align: center;
}
.videos {
  display: flex;
  gap: 30px;
  justify-content: space-around;
}
.btns {
  text-align: center;
  display: flex;
  justify-content: center;
  gap: 10px;
  padding-bottom: 2%;
  padding-top: 2%;
  margin: 2% auto;
  width: 90%;
  margin-top: -1%;
  background-color: rgb(2, 23, 35);
  border-radius: 5%;
}
.btn {
  border: 2px solid rgb(247, 247, 179);
  background: none;
  color: rgb(247, 247, 179);
  padding: 15px 30px;
  font-size: 1.1rem;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.5s;
  font-weight: bold;
  position: relative;
  color: rgb(247, 247, 179);
  overflow: hidden;
}

.btn:hover {
  color: black;
}
#btn1:hover {
  color: orange;
}
.btn:before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgb(247, 247, 179);
  z-index: -1;
  border-radius: 50% 50% 0% 0%;
  height: 0%;
  transition: all 0.5s;
}

.btn:hover:before {
  height: 190%;
}

.bars {
  background-color: rgb(246, 247, 229);
  padding: 1%;
  display: flex;
  justify-content: space-between;
  margin-bottom: 1rem;
}
.hide {
  display: none;
}
.bar3 {
  transform: rotate(0deg);
  transform-origin: bottom center;
  animation: fallBar 2s ease-in-out forwards;
  animation-delay: 6s;
}
.bar4 {
  transform: rotate(0deg);
  transform-origin: bottom center;
  animation: fallBar 2s ease-in-out forwards;
  animation-delay: 5s;
}
.bar5 {
  transform: rotate(0deg);
  transform-origin: bottom center;
  animation: fallBar 2s ease-in-out forwards;
  animation-delay: 4s;
}
.bar6 {
  transform: rotate(0deg);
  transform-origin: bottom center;
  animation: fallBar 2s ease-in-out forwards;
  animation-delay: 3s;
}
@keyframes fallBar {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(-80deg);
  }
}
.prolog {
  margin: 1% auto;
  color: rgb(247, 247, 179);
  text-align: center;
  font-size: 1.3rem;
  padding: 0 5%;
}