Add heatmap_visualization/css/components.css

heatmap_visualization/css/components.css

@@ -0,0 +1,140 @@
+:root {
+  --primary: #1a73e8;
+  --secondary: #fbbc04;
+  --background: #ffffff;
+  --text-color: #222;
+  --grid-line: rgba(0, 0, 0, 0.1);
+  --tooltip-bg: rgba(0, 0, 0, 0.85);
+  --tooltip-text: #fff;
+  --legend-height: 12px;
+  --font-base: system-ui, sans-serif;
+  --spacing-sm: 0.5rem;
+  --spacing-md: 1rem;
+  --border-radius: 4px;
+  --transition-fast: 0.2s ease-in-out;
+}
+
+/* ==============================
+   Heatmap Grid
+   ============================== */
+.heatmap-area {
+  display: grid;
+  grid-template-columns: repeat(auto-fill, minmax(8px, 1fr));
+  gap: 1px;
+  background-color: var(--grid-line);
+  border: 1px solid var(--grid-line);
+  width: 100%;
+  height: auto;
+  aspect-ratio: 2 / 1;
+  position: relative;
+}
+
+.heatmap-area div {
+  background: var(--secondary);
+  transition: background-color var(--transition-fast);
+}
+
+.heatmap-area div:hover {
+  outline: 1px solid var(--primary);
+  cursor: pointer;
+}
+
+/* ==============================
+   Heatmap Style
+   ============================== */
+.heatmap-style {
+  font-family: var(--font-base);
+  color: var(--text-color);
+  background: var(--background);
+  padding: var(--spacing-md);
+}
+
+.heatmap-style .intensity-low {
+  background-color: #dceefb;
+}
+
+.heatmap-style .intensity-medium {
+  background-color: #71c1f0;
+}
+
+.heatmap-style .intensity-high {
+  background-color: #1a73e8;
+}
+
+/* ==============================
+   Legend and Tooltip
+   ============================== */
+.heatmap-legend {
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  margin-top: var(--spacing-md);
+  font-size: 0.875rem;
+}
+
+.heatmap-legend__scale {
+  flex: 1;
+  height: var(--legend-height);
+  background: linear-gradient(to right, #dceefb, #71c1f0, #1a73e8);
+  border-radius: var(--border-radius);
+}
+
+.heatmap-legend__labels {
+  display: flex;
+  justify-content: space-between;
+  width: 100%;
+  margin-top: var(--spacing-sm);
+  font-size: 0.75rem;
+}
+
+.tooltip {
+  position: absolute;
+  background-color: var(--tooltip-bg);
+  color: var(--tooltip-text);
+  padding: var(--spacing-sm);
+  border-radius: var(--border-radius);
+  font-size: 0.75rem;
+  pointer-events: none;
+  opacity: 0;
+  transition: opacity var(--transition-fast);
+  z-index: 10;
+}
+
+.tooltip[aria-hidden="false"] {
+  opacity: 1;
+}
+
+/* ==============================
+   Responsive Adjustments
+   ============================== */
+@media (min-width: 640px) {
+  .heatmap-area {
+    grid-template-columns: repeat(auto-fill, minmax(10px, 1fr));
+  }
+  .heatmap-legend {
+    font-size: 1rem;
+  }
+}
+
+@media (min-width: 1024px) {
+  .heatmap-area {
+    grid-template-columns: repeat(auto-fill, minmax(12px, 1fr));
+  }
+}
+
+/* ==============================
+   Footer (falls vorhanden)
+   ============================== */
+footer {
+  text-align: center;
+  font-size: 0.75rem;
+  padding: var(--spacing-md);
+  color: var(--text-color);
+  border-top: 1px solid var(--grid-line);
+}
+
+footer small {
+  display: block;
+  margin-top: var(--spacing-sm);
+  content: "© 2026 Donau2Space.de";
+}