add landing apge to docs

Author: simon-donike

docs/index.md

@@ -1,3 +1,36 @@
+---
+title: Remote-Sensing-SRGAN
+hide:
+  - navigation
+  - toc
+---
+
+# 🛰️ SRGAN for Remote Sensing
+
+> Flexible super-resolution GANs for satellite imagery  
+> *Open-source, PyTorch-Lightning-based, and ready for research.*
+
+<div class="grid cards" markdown>
+- :rocket: **Get Started**  
+  Learn installation, configuration, and your first training run.  
+  [:material-play-circle: Getting Started](getting-started.md)
+
+- :gear: **Architecture**  
+  Dive into the model design, generators, discriminators, and loss functions.  
+  [:material-cog-outline: Architecture](architecture.md)
+
+- :bar_chart: **Results**  
+  See qualitative and quantitative outcomes of SRGAN models.  
+  [:material-chart-line: Results](results.md)
+
+- :books: **API Reference**  
+  Detailed documentation of all Python modules and functions.  
+  [:material-code-tags: API Reference](api-reference/index.md)
+</div>
+
+---
+
+
 <img src="https://github.com/ESAOpenSR/opensr-model/blob/main/resources/opensr_logo.png?raw=true" width="250"/>
 
 # SISR-RS-SRGAN

mkdocs.yml

@@ -10,6 +10,10 @@ docs_dir: docs
 theme:
   name: material
   features:
+    - navigation.tabs        # <- top tabs
+    - navigation.sections    # sidebar sections
+    - navigation.indexes     # use section index pages (api-reference/index.md)
+    - navigation.tabs.sticky
     - navigation.instant
     - navigation.sections
     - content.code.copy
@@ -56,10 +60,11 @@ nav:
       - Trainer Details: trainer-details.md
       - Training Guideline: training-guideline.md
       - Results: results.md
+
   - API reference:
       - Overview: api-reference/index.md
       - Inference API: api-reference/inference.md
       - Training API: api-reference/training.md
       - Model Components: api-reference/model.md
       - Data Pipeline: api-reference/data.md
-      - Utility Helpers: api-reference/utils.md
+      - Utility Helpers: api-reference/utils.md