:root {
  --primary: #3da9fc;   /* hellblau */
  --light: #ffffff;
  --gray: #f3f8fd;
  --text: #1c1c1c;
  --font: 'Poppins', sans-serif;
  --title: #000066;
}

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--gray);
}

/* Seitentitel */
.title {
  text-align: center;
  color: var(--title);
  font-size: 2.2rem;
  letter-spacing: 1px;
  padding: 60px 10px 30px;
  margin: 0;
}

/* Hauptbereich */
.container {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 10px 60px;
}

/* Inhalte (Layer) */
.layer {
  background: var(--light);
  margin-bottom: 20px;
  padding: 10px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.07);
}

.layer.alt {
  background: #e8f5ff; /* hellblau-weiß Wechsel */
}

.layer h2 {
  color: var(--primary);
  text-align: center;
  margin-bottom: 10px;
}

.content {
  text-align: center;
}

.content img {
  width: 80%;
  max-width: 700px;
  border-radius: 8px;
  object-fit: cover;
  margin-bottom: 20px;
}

.content p {
  font-size: 1rem;
  line-height: 1.6;
  max-width: 700px;
  margin: 0 auto;
}

/* Footer */
.footer {
  text-align: center;
  background: var(--primary);
  color: var(--light);
  padding: 10px;
  font-size: 0.9rem;
  border-top: 3px solid #bce0ff;
}

/* Collage-Stil */
.collage {
  background: #ffffff; /* hellblau/weiß */
  border-radius: 10px;
  padding: 50px 20px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.08);
  text-align: center;
}

.collage h2 {
  color: #3da9fc;
  font-size: 1.8rem;
  margin-bottom: 40px;
}

/* Raster für 3 Bilder */
.collage-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  justify-items: center;
}

.collage-item img {
  width: 100%;
  max-width: 320px;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* dezente Hover-Animation */
.collage-item img:hover {
  transform: scale(1.04);
  box-shadow: 0 6px 20px rgba(0,0,0,0.25);
}

/* Responsiv */
@media (max-width: 700px) {
  .collage {
    padding: 40px 15px;
  }
  .collage-grid {
    gap: 15px;
  }
  .collage-item img {
    max-width: 100%;
  }
}