From a0132aa58d896026966707025016a6445fec3e74 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Sun, 3 May 2026 02:07:35 +0000
Subject: [PATCH] Add data_visualization/css/layout.css

---
 data_visualization/css/layout.css | 167 ++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)
 create mode 100644 data_visualization/css/layout.css

diff --git a/data_visualization/css/layout.css b/data_visualization/css/layout.css
new file mode 100644
index 0000000..95e2790
--- /dev/null
+++ b/data_visualization/css/layout.css
@@ -0,0 +1,167 @@
+:root {
+  --color-bg: #f9fafb;
+  --color-surface: #ffffff;
+  --color-border: #d1d5db;
+  --color-primary: #1e3a8a;
+  --color-text: #111827;
+  --spacing-xs: 0.25rem;
+  --spacing-sm: 0.5rem;
+  --spacing-md: 1rem;
+  --spacing-lg: 2rem;
+  --spacing-xl: 4rem;
+  --radius-sm: 0.25rem;
+  --radius-md: 0.5rem;
+  --radius-lg: 1rem;
+  --font-base: 'system-ui', sans-serif;
+  --font-size-base: 1rem;
+  --font-size-sm: 0.875rem;
+  --font-size-lg: 1.25rem;
+  --container-max-width: 1200px;
+  --breakpoint-md: 640px;
+  --breakpoint-lg: 1024px;
+}
+
+body {
+  margin: 0;
+  font-family: var(--font-base);
+  background-color: var(--color-bg);
+  color: var(--color-text);
+  line-height: 1.5;
+}
+
+/* =====================================
+   layout_shell
+   ===================================== */
+.app-shell {
+  display: flex;
+  flex-direction: column;
+  min-height: 100vh;
+  max-width: var(--container-max-width);
+  margin: 0 auto;
+  padding: var(--spacing-md);
+  box-sizing: border-box;
+}
+
+/* =====================================
+   filter_panel
+   ===================================== */
+.filter-panel {
+  display: flex;
+  flex-wrap: wrap;
+  gap: var(--spacing-sm);
+  justify-content: flex-start;
+  align-items: center;
+  background-color: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  padding: var(--spacing-md);
+  margin-bottom: var(--spacing-lg);
+}
+
+.filter-panel label {
+  font-size: var(--font-size-sm);
+  font-weight: 500;
+  margin-right: var(--spacing-xs);
+}
+
+.filter-panel select,
+.filter-panel input {
+  padding: var(--spacing-xs) var(--spacing-sm);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-sm);
+  font-size: var(--font-size-sm);
+  background-color: var(--color-surface);
+}
+
+/* =====================================
+   chart_container
+   ===================================== */
+.chart-container {
+  position: relative;
+  width: 100%;
+  background-color: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  padding: var(--spacing-md);
+  box-sizing: border-box;
+  margin-bottom: var(--spacing-lg);
+}
+
+.chart-container canvas {
+  width: 100%;
+  height: auto;
+  max-height: 400px;
+}
+
+/* =====================================
+   summary_cards
+   ===================================== */
+.summary-cards {
+  display: grid;
+  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
+  gap: var(--spacing-md);
+  margin-bottom: var(--spacing-lg);
+}
+
+.summary-cards .card {
+  background-color: var(--color-surface);
+  border: 1px solid var(--color-border);
+  border-radius: var(--radius-md);
+  padding: var(--spacing-md);
+  text-align: center;
+  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
+}
+
+.summary-cards .card__title {
+  font-size: var(--font-size-sm);
+  color: var(--color-primary);
+  margin-bottom: var(--spacing-xs);
+}
+
+.summary-cards .card__value {
+  font-size: var(--font-size-lg);
+  font-weight: bold;
+}
+
+/* =====================================
+   Responsiveness
+   ===================================== */
+@media (min-width: 640px) {
+  .filter-panel {
+    justify-content: space-between;
+  }
+
+  .chart-container canvas {
+    max-height: 500px;
+  }
+}
+
+@media (min-width: 1024px) {
+  .chart-container canvas {
+    max-height: 600px;
+  }
+}
+
+/* Footer */
+footer {
+  text-align: center;
+  font-size: var(--font-size-sm);
+  color: var(--color-text);
+  margin-top: auto;
+  padding: var(--spacing-md);
+  border-top: 1px solid var(--color-border);
+}
+
+footer p {
+  margin: 0;
+}
+
+footer small {
+  font-size: var(--font-size-sm);
+}
+
+footer small::before {
+  content: '© 2026 Donau2Space.de';
+  display: block;
+  margin-bottom: var(--spacing-xs);
+}
\ No newline at end of file