.confheader {
  position: relative;
  background-color: #1a64a0; /* Dunkelblau – professionell & markant */
  color: white;
  padding: 20px 0;
  box-sizing: border-box;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Logo-Overlay – moderner, klarer Aufbau */
.confheader::before {
  content: "";

  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;

  background-image:
    url("https://events.gwdg.de/event/1457/images/618-Summer%20School_plane.png"),
    url("https://events.gwdg.de/event/1457/images/616-GoenomiX-Logo-4-transp.png");

  background-repeat: no-repeat, no-repeat;
  background-position: left 20px center, right 20px center;
  background-size: 120px auto, 120px auto;

  pointer-events: none;
  z-index: 10;

  /* Optional: leichter Hintergrund-Overlay für bessere Textlesbarkeit */
  background-blend-mode: multiply;
  background-color: rgba(0, 0, 0, 0.1);
}

/* Optional: Text-Container für bessere Lesbarkeit */
.confheader .title-container {
  position: relative;
  z-index: 20;
  text-align: center;
  padding: 0 20px;
  margin: 0 auto;
  max-width: 1200px;
}

.confheader .title-container h1 {
  font-size: 2.2em;
  margin: 0;
  font-weight: bold;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.5);
  line-height: 1.2;
}

.confheader .title-container p {
  font-size: 1.1em;
  margin: 10px 0 0;
  opacity: 0.9;
  line-height: 1.5;
}

/* Responsive: Mobile-Optimierung */
@media (max-width: 768px) {
  .confheader {
    padding: 15px 0;
  }

  .confheader::before {
    background-size: 100px auto, 100px auto;
  }

  .confheader .title-container h1 {
    font-size: 1.8em;
  }

  .confheader .title-container p {
    font-size: 1em;
    padding: 0 10px;
  }
}