.search-form-wrapper.open {
  opacity: 1;
  visibility: visible;
}
.search-form-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1000;
  background-color: rgba(0, 0, 0, 0.8);
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: 0.3s;
}
.search-form-wrapper .sigma_close {
  position: absolute;
  top: 60px;
  right: 60px;
  border-color: #fff;
}
.sigma_close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 0.3s;
}
.sigma_close:hover span:first-child {
  transform: rotate(0deg);
}
.search-form-wrapper .sigma_close span {
  background-color: #fff;
}
.sigma_close span:first-child {
  transform: rotate(45deg);
}
.sigma_close:hover span {
  opacity: 1;
}
.sigma_close span {
  position: absolute;
  width: 24px;
  height: 2px;
  opacity: 0.5;
  transition: 0.3s;
}
.sigma_close:hover span:last-child {
  transform: rotate(180deg);
}
.sigma_close span:last-child {
  transform: rotate(135deg);
}
.search-form-wrapper.open form {
  transform: scale(1);
  opacity: 1;
  visibility: visible;
}
.search-form-wrapper form {
  position: relative;
  width: 70%;
  transition-duration: 0.3s;
  transition-delay: 0.3s;
  transform: scale(0.5);
  opacity: 0;
  visibility: hidden;
}
.search-form-wrapper form input {
  background-color: transparent;
  border: 0;
  border-bottom: 2px solid #fff;
  font-size: 40px;
  height: 80px;
  width: 100%;
  outline: none;
  color: #fff;
  font-weight: 400;
}
.search-form-wrapper .search-btn {
  width: 0;
  position: absolute;
  top: 50%;
  right: 20px;
  transform: translateY(-50%);
  background-color: transparent;
  border: 0;
  color: #fff;
  font-size: 30px;
  outline: none;
  transition: 0.3s;
  cursor: pointer;
  padding: 0;
}
.search-form-wrapper .search-btn span {
  display: inline-block;
  font-size: 30px;
  color: #ffffff;
}