/* Grundlayout */
  body {
	font-family: "Source Sans Pro", "Inter", Arial, sans-serif;
	color: #2b2b2b;
	background-color: #ffffff;
	line-height: 1.5;
	display: flex;
	flex-direction: column;
	min-height: 100vh; /* Ganzseitig */
	}
  main {
	flex: 1; /* nimmt den restlichen Platz ein */
	}
  footer {
	flex-shrink: 0;
  }

.data-sources {
  font-size: 0.85em;
  color: #555;
  margin-top: 20px;
}

    /* Tabs */
  .tabs {
    display: flex;
    gap: 32px;
    border-bottom: 1px solid #e5e5e5;
    margin-bottom: 24px;
  }

  .tab {
    padding: 12px 0;
    cursor: pointer;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 600;
    color: #666;
    position: relative;
  }

  .tab::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -1px;
    width: 100%;
    height: 3px;
    background-color: transparent;
    transition: background-color 0.2s ease;
  }

  .tab:hover {
    color: #007a6f;
  }

  .tab.active {
    color: #007a6f;
  }

  .tab.active::after {
    background-color: #007a6f;
  }

  /* Tab-Inhalte */
  .tab-content {
    display: none;
  }

  .tab-content.active {
    display: block;
    animation: fadeIn 0.2s ease-in;
  }
  
    @keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
  }
  
  /* Controls */
  .controls {
    margin-bottom: 24px;
  }


/* Canvas / SVG Bereich */
  canvas {
    max-width: 100%;
  }

  svg {
    background-color: #fafafa;
    border-radius: 6px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
  }
    .sankey-title {
      text-anchor: middle;
      font-size: 18px;
    }

	  .node rect {
		stroke: #888;
		stroke-width: 0.5px;
	  }

	  .node text {
		font-size: 14px;
		pointer-events: none;
	  }

    .export-import {
      font-size: 14px;
    }

	  .link {
		fill: none;
		stroke-opacity: 0.45;
	  }

	  .link:hover {
		stroke-opacity: 0.8;
	  }
	  
	  #tooltip {
		  position: absolute;
		  background-color: white;
		  padding: 6px 10px;
		  border: 1px solid #aaa;
		  border-radius: 4px;
		  pointer-events: none;
		  opacity: 0;
		  font-size: 12px;
		  font-family: Arial, sans-serif;
		  box-shadow: 0px 0px 5px rgba(0,0,0,0.2);
		}
		
	  .link-value {
			font-family: sans-serif;
			background: rgba(255,255,255,0.7);
      font-size: 10px;
		}
		
		.copyright {
		  font-size: 11px;
		  fill: #888;
		  font-family: Arial, sans-serif;
		  pointer-events: none;
		}
		
		/* Controls wieder nebeneinander */
.accordion-controls {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  align-items: flex-start;
}

/* Jede Gruppe wie vorher eine Spalte */
.group {
  width: 260px;           /* fix wie Spalte */
  border: 1px solid #e5e5e5;
  border-radius: 6px;
  background: #ffffff;
  overflow: hidden;
}

/* Titel (klickbar) */
.group-title {
  width: 100%;
  padding: 12px 14px;
  background: #f7f7f7;
  border: none;
  font-weight: 600;
  color: #007a6f;
  text-align: left;
  cursor: pointer;
  position: relative;
}

/* Pfeil */
.group-title::after {
  content: "▾";
  position: absolute;
  right: 14px;
  transition: transform 0.2s ease;
}

.group.active .group-title::after {
  transform: rotate(180deg);
}

/* Inhalt */
.group-content {
  display: none;
  padding: 12px 14px;
  font-size: 14px;
  line-height: 1.5;
}

.group.active .group-content {
  display: block;
  


}