front-AT/app/Components/Header/Header.module.css

.logo {
  position: relative;
  filter: invert(1);
  z-index: 3;
  margin: 5px;
}

.cedetecContainer {
  position: absolute;
  top: 0;
  right: 0;
  width: 300px;
  height: 100%;
  z-index: -1;
}

.cedetecContainer::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, #f9f9f9, rgba(128, 128, 128, 0));
}

.yellowPart {
  position: absolute;
  content: "";
  top: 0;
  left: -20px;
  width: 65%;
  height: 100%;
  min-width: 300px;
  background: linear-gradient(to right, #bd8c01, #f9f9f9);
  transform: skew(-45deg);
  z-index: 0;
}

@media (max-width: 800px) {
  .yellowPart {
    background: #bd8c01;
  }
}