From 4ebc808130e1cf4dcb2b0cda7cc786aff2e1c522 Mon Sep 17 00:00:00 2001
From: Mika <kontakt@donau2space.de>
Date: Sun, 18 Jan 2026 16:36:58 +0000
Subject: [PATCH] Add data_visualization/css/layout.css

---
 data_visualization/css/layout.css | 103 ++++++++++++++++++++++++++++++
 1 file changed, 103 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..0fe29e4
--- /dev/null
+++ b/data_visualization/css/layout.css
@@ -0,0 +1,103 @@
+:root {
+  --primary-bg: #10141a;
+  --secondary-bg: #1a2027;
+  --accent-color: #2979ff;
+  --text-color: #e0e6ed;
+  --spacing-sm: 0.5rem;
+  --spacing-md: 1rem;
+  --spacing-lg: 2rem;
+  --font-base: 'Arial', sans-serif;
+  --footer-height: 3rem;
+}
+
+html, body {
+  margin: 0;
+  padding: 0;
+  height: 100%;
+  background-color: var(--primary-bg);
+  color: var(--text-color);
+  font-family: var(--font-base);
+}
+
+/* === App Layout === */
+.app-header {
+  grid-area: header;
+  background-color: var(--secondary-bg);
+  padding: var(--spacing-md);
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+  border-bottom: 1px solid #2c3440;
+}
+
+.sidebar {
+  grid-area: sidebar;
+  background-color: var(--secondary-bg);
+  padding: var(--spacing-lg) var(--spacing-md);
+  display: flex;
+  flex-direction: column;
+  gap: var(--spacing-md);
+  border-right: 1px solid #2c3440;
+}
+
+.chart-panel {
+  grid-area: main;
+  padding: var(--spacing-md);
+  display: flex;
+  flex-direction: column;
+  justify-content: flex-start;
+  align-items: stretch;
+}
+
+.app-footer {
+  grid-area: footer;
+  background-color: var(--secondary-bg);
+  height: var(--footer-height);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  font-size: 0.85rem;
+  border-top: 1px solid #2c3440;
+}
+
+body {
+  display: grid;
+  grid-template-areas:
+    "header header"
+    "sidebar main"
+    "footer footer";
+  grid-template-columns: 250px 1fr;
+  grid-template-rows: auto 1fr var(--footer-height);
+  min-height: 100vh;
+}
+
+/* === Responsive Design === */
+@media (max-width: 768px) {
+  body {
+    grid-template-areas:
+      "header"
+      "main"
+      "sidebar"
+      "footer";
+    grid-template-columns: 1fr;
+    grid-template-rows: auto 1fr auto var(--footer-height);
+  }
+
+  .sidebar {
+    flex-direction: row;
+    justify-content: space-around;
+    border-right: none;
+    border-top: 1px solid #2c3440;
+    padding: var(--spacing-md);
+  }
+
+  .chart-panel {
+    padding: var(--spacing-sm);
+  }
+}
+
+/* === Footer Copyright === */
+.app-footer::after {
+  content: "© 2026 Donau2Space.de";
+  color: var(--text-color);
+}
\ No newline at end of file