body,html{
    position: relative;
    height: 100%;
}
body{
    background-color: black !important;
    color: white !important;
    margin:0;
    padding:0;
    /* overflow: hidden;*/
}

section p{
    font-size:30px;
}
section p.text-small{
  font-size: 24px;
}
#solving{
  background-color: #FFF;
  color:#000;
}

.swiper-slide{
    height: auto;
}

.headline{
    font-size: 80px;
    font-weight: 700;
}
.headline_2{
  font-size: 64px;
  font-weight: 700;
  line-height: 64px;
}

.langtgl{
  font-size: 20px;
  padding: 20px 74px 0 0;
}
.langtgl, .langtgl a{
    text-decoration: none;
    color: white;
  }
  .langtgl a:hover, .langtgl a:active, .langtgl a.disabled{
    opacity: 0.7;    
  } 
  .navbar-toggler, .navbar-toggler:active, .navbar-toggler:focus{
    border-color: transparent !important;
    box-shadow: none !important;
 }
 
.button_container {
    position: fixed;
    top: 35px;
    right: 24px;
    height: 27px;
    width: 35px;
    cursor: pointer;
    z-index: 100;
    transition: opacity 0.25s ease;
}
.button_container:hover {
    opacity: 0.7;
}
  .button_container.active .top {
    transform: translateY(11px) translateX(0) rotate(45deg);
    background: #FFF;
  }
  .button_container.active .middle {
    opacity: 0;
    background: #FFF;
  }
  .button_container.active .bottom {
    transform: translateY(-11px) translateX(0) rotate(-45deg);
    background: #FFF;
  }
  .button_container span {
    background: #FFF;
    border: none;
    height: 3px;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    transition: all 0.35s ease;
    cursor: pointer;
  }
  .button_container span:nth-of-type(2) {
    top: 11px;
  }
  .button_container span:nth-of-type(3) {
    top: 22px;
  }
  
.overlay {
  position: fixed;
  background: #000;
  top: 0;
  left: 0;
  width: 100%;
  height: 0%;
  opacity: 0.8; 
  visibility: hidden;
  transition: opacity 0.35s, visibility 0.35s, height 0.35s;
  overflow: hidden;
}
.overlay.open {
  opacity: 0.9;
  visibility: visible;
  height: 100%;
}
.overlay.open li {
  animation: fadeInRight 0.5s ease forwards;
  animation-delay: 0.35s;
}
.overlay.open li:nth-of-type(2) {
  animation-delay: 0.4s;
}
.overlay.open li:nth-of-type(3) {
  animation-delay: 0.45s;
}
.overlay.open li:nth-of-type(4) {
  animation-delay: 0.5s;
}
.overlay nav {
  position: relative;
  height: 70%;
  top: 50%;
  transform: translateY(-50%);
  font-size: 50px;  
  font-weight: 400;
  text-align: center;
}
.overlay ul {
  list-style: none;
  padding: 0;
  margin: 0 auto;
  display: inline-block;
  position: relative;
  height: 100%;
}
.overlay ul li {
  display: block;
  height: 25%;
  height: calc(100% / 4);
  min-height: 50px;
  position: relative;
  
}
.overlay ul li a {
  display: block;
  position: relative;
  color: #FFF;
  text-decoration: none;
  overflow: hidden;
}
.overlay ul li a:hover:after, .overlay ul li a:focus:after, .overlay ul li a:active:after {
  width: 100%;
}
.overlay ul li a:after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0%;
  transform: translateX(-50%);
  height: 3px;
  background: #FFF;
  transition: 0.35s;
}
.modal{
  color: black;
}

:root{  
  --swiper-pagination-bullet-inactive-color: white;
}