tinkoff-ai · Mr-Geekman · Aug 9, 2023 · Aug 9, 2023 · Aug 9, 2023
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - 
 - Implementation of PatchTS model ([#1277](https://github.com/tinkoff-ai/etna/pull/1277))
 - Add `quickstart` notebook, add `mechanics_of_forecasting` notebook ([#1343](https://github.com/tinkoff-ai/etna/pull/1343))
+- Add gallery of tutorials divided by level ([#1354](https://github.com/tinkoff-ai/etna/pull/1354))
 
 ### Changed
 - 

diff --git a/README.md b/README.md
@@ -177,25 +177,25 @@ To set up a configuration for your project you should create a `.etna` file at t
 
 We have also prepared a set of tutorials for an easy introduction:
 
-| Notebook                                                                                                                    |                                                                                                                                        Interactive launch |
-|:----------------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------:|
-| [Get started](https://github.com/tinkoff-ai/etna/tree/master/examples/01-get_started.ipynb)                                 |                [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/01-get_started.ipynb) |
-| [Backtest](https://github.com/tinkoff-ai/etna/tree/master/examples/02-backtest.ipynb)                                       |                   [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/02-backtest.ipynb) |
-| [EDA](https://github.com/tinkoff-ai/etna/tree/master/examples/03-EDA.ipynb)                                                 |                        [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/03-EDA.ipynb) |
-| [Regressors and exogenous data](https://github.com/tinkoff-ai/etna/tree/master/examples/04-exogenous_data.ipynb)            |             [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/04-exogenous_data.ipynb) |
-| [Custom model and transform](https://github.com/tinkoff-ai/etna/tree/master/examples/05-custom_transform_and_model.ipynb)   | [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/05-custom_transform_and_model.ipynb) |
-| [Deep learning models](https://github.com/tinkoff-ai/etna/tree/master/examples/06-NN_examples.ipynb)                        |                [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/06-NN_examples.ipynb) |
-| [Ensembles](https://github.com/tinkoff-ai/etna/tree/master/examples/07-ensembles.ipynb)                                     |                  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/07-ensembles.ipynb) |
-| [Outliers](https://github.com/tinkoff-ai/etna/tree/master/examples/08-outliers.ipynb)                                       |                   [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/08-outliers.ipynb) |
-| [Forecasting strategies](https://github.com/tinkoff-ai/etna/tree/master/examples/09-forecasting_strategies.ipynb)           |     [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/09-forecasting_strategies.ipynb) |
-| [Forecast interpretation](https://github.com/tinkoff-ai/etna/tree/master/examples/10-forecast_interpretation.ipynb)         |    [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/10-forecast_interpretation.ipynb) |
-| [Clustering](https://github.com/tinkoff-ai/etna/tree/master/examples/11-clustering.ipynb)                                   |                 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/11-clustering.ipynb) |
-| [AutoML](https://github.com/tinkoff-ai/etna/tree/master/examples/12-automl.ipynb)                                           |                     [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/12-automl.ipynb) |
-| [Inference: using saved pipeline on a new data](https://github.com/tinkoff-ai/etna/tree/master/examples/13-inference.ipynb) |                  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/13-inference.ipynb) |
-| [Hierarchical time series](https://github.com/tinkoff-ai/etna/blob/master/examples/14-hierarchical_pipeline.ipynb)          |      [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/14-hierarchical_pipeline.ipynb) |
-| [Classification](https://github.com/tinkoff-ai/etna/blob/master/examples/15-classification.ipynb)                           |             [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/15-classification.ipynb) |
-| [Feature selection](https://github.com/tinkoff-ai/etna/blob/master/examples/16-feature_selection.ipynb)                     |          [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/16-feature_selection.ipynb) |
-| [Mechanics of forecasting](https://github.com/tinkoff-ai/etna/blob/master/examples/17-mechanics_of_forecasting.ipynb)       |          [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/17-mechanics_of_forecasting.ipynb) |
+| Notebook                                                                                                                     |                                                                                                                                         Interactive launch |
+|:-----------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------:|
+| [Get started](https://github.com/tinkoff-ai/etna/tree/master/examples/101-get_started.ipynb)                                 |                [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/101-get_started.ipynb) |
+| [Backtest](https://github.com/tinkoff-ai/etna/tree/master/examples/102-backtest.ipynb)                                       |                   [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/102-backtest.ipynb) |
+| [EDA](https://github.com/tinkoff-ai/etna/tree/master/examples/103-EDA.ipynb)                                                 |                        [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/103-EDA.ipynb) |
+| [Regressors and exogenous data](https://github.com/tinkoff-ai/etna/tree/master/examples/201-exogenous_data.ipynb)            |             [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/201-exogenous_data.ipynb) |
+| [Deep learning models](https://github.com/tinkoff-ai/etna/tree/master/examples/202-NN_examples.ipynb)                        |                [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/202-NN_examples.ipynb) |
+| [Ensembles](https://github.com/tinkoff-ai/etna/tree/master/examples/303-ensembles.ipynb)                                     |                  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/203-ensembles.ipynb) |
+| [Outliers](https://github.com/tinkoff-ai/etna/tree/master/examples/204-outliers.ipynb)                                       |                   [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/204-outliers.ipynb) |
+| [AutoML](https://github.com/tinkoff-ai/etna/tree/master/examples/205-automl.ipynb)                                           |                     [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/205-automl.ipynb) |
+| [Clustering](https://github.com/tinkoff-ai/etna/tree/master/examples/206-clustering.ipynb)                                   |                 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/206-clustering.ipynb) |
+| [Feature selection](https://github.com/tinkoff-ai/etna/blob/master/examples/207-feature_selection.ipynb)                     |          [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/207-feature_selection.ipynb) |
+| [Forecasting strategies](https://github.com/tinkoff-ai/etna/tree/master/examples/208-forecasting_strategies.ipynb)           |     [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/208-forecasting_strategies.ipynb) |
+| [Mechanics of forecasting](https://github.com/tinkoff-ai/etna/blob/master/examples/209-mechanics_of_forecasting.ipynb)       |   [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/209-mechanics_of_forecasting.ipynb) |
+| [Custom model and transform](https://github.com/tinkoff-ai/etna/tree/master/examples/301-custom_transform_and_model.ipynb)   | [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/301-custom_transform_and_model.ipynb) |
+| [Inference: using saved pipeline on a new data](https://github.com/tinkoff-ai/etna/tree/master/examples/302-inference.ipynb) |                  [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/302-inference.ipynb) |
+| [Hierarchical time series](https://github.com/tinkoff-ai/etna/blob/master/examples/303-hierarchical_pipeline.ipynb)          |      [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/303-hierarchical_pipeline.ipynb) |
+| [Forecast interpretation](https://github.com/tinkoff-ai/etna/tree/master/examples/304-forecast_interpretation.ipynb)         |    [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/304-forecast_interpretation.ipynb) |
+| [Classification](https://github.com/tinkoff-ai/etna/blob/master/examples/305-classification.ipynb)                           |             [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/305-classification.ipynb) |
 
 ## Documentation
 

diff --git a/docs/source/_static/css/custom.css b/docs/source/_static/css/custom.css
@@ -0,0 +1,12 @@
+#tutorials .card-tutorial-basic {
+    background-color: var(--pst-color-primary);
+}
+
+#tutorials .card-tutorial-intermediate {
+    background-color: var(--pst-color-secondary);
+}
+
+#tutorials .card-tutorial-advanced {
+    background-color: var(--pst-color-target);
+}
+
diff --git a/docs/source/conf.py b/docs/source/conf.py
@@ -50,6 +50,7 @@
 extensions = [
     "nbsphinx",   # integration of notebooks
     "myst_parser",  # markdown support
+    "sphinx_design",  # for ready styling blocks
     "sphinx.ext.napoleon",  # support for NumPy and Google style docstrings
     "sphinx.ext.autodoc",  # include documentation from docstrings
     "sphinx.ext.autosummary",  # generate autodoc summaries
@@ -81,6 +82,9 @@
 # relative to this directory. They are copied after the builtin static files,
 # so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ["_static"]
+html_css_files = [
+    "css/custom.css",
+]
 
 html_logo = "_static/etna_logo.png"
 html_favicon = "_static/etna_favicon.ico"

diff --git a/docs/source/tutorials.rst b/docs/source/tutorials.rst
@@ -3,24 +3,175 @@
 Tutorials
 ==========
 
-.. toctree::
-   :titlesonly:
-   :maxdepth: 1
-
-   tutorials/01-get_started
-   tutorials/02-backtest
-   tutorials/03-EDA
-   tutorials/04-exogenous_data
-   tutorials/05-custom_transform_and_model
-   tutorials/06-NN_examples
-   tutorials/07-ensembles
-   tutorials/08-outliers
-   tutorials/09-forecasting_strategies
-   tutorials/10-forecast_interpretation
-   tutorials/11-clustering
-   tutorials/12-automl
-   tutorials/13-inference
-   tutorials/14-hierarchical_pipeline
-   tutorials/15-classification
-   tutorials/16-feature_selection
-   tutorials/17-mechanics_of_forecasting
+There are multiple tutorials for different use cases divided by proficiency level.
+
+Basic
+-----
+
+.. grid:: 1 2 2 2
+   :gutter: 2
+
+   .. grid-item-card:: Get Started
+      :text-align: center
+      :link: tutorials/101-get_started
+      :link-type: doc
+      :class-header: card-tutorial-basic
+
+      ^^^
+      Get started with the library
+
+   .. grid-item-card:: Backtest
+      :text-align: center
+      :link: tutorials/102-backtest
+      :link-type: doc
+      :class-header: card-tutorial-basic
+
+      ^^^
+      How to evaluate a pipeline
+
+   .. grid-item-card:: Exploratory data analysis
+      :text-align: center
+      :link: tutorials/103-EDA
+      :link-type: doc
+      :class-header: card-tutorial-basic
+
+      ^^^
+      How to make EDA using the library
+
+Intermediate
+------------
+
+.. grid:: 1 2 2 2
+   :gutter: 2
+
+   .. grid-item-card:: Regressors and exogenous data
+      :text-align: center
+      :link: tutorials/201-exogenous_data
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to use exogenous data in a pipeline
+
+   .. grid-item-card:: Deep learning examples
+      :text-align: center
+      :link: tutorials/202-NN_examples
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to use neural network models
+
+   .. grid-item-card:: Ensembles
+      :text-align: center
+      :link: tutorials/203-ensembles
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to use ensemble pipelines
+
+   .. grid-item-card:: Outliers
+      :text-align: center
+      :link: tutorials/204-outliers
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to handle outliers
+
+   .. grid-item-card:: AutoML
+      :text-align: center
+      :link: tutorials/205-automl
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to work with AutoML utilities
+
+   .. grid-item-card:: Clustering
+      :text-align: center
+      :link: tutorials/206-clustering
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to perform time series clustering
+
+   .. grid-item-card:: Feature selection
+      :text-align: center
+      :link: tutorials/207-feature_selection
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to perform feature selection
+
+   .. grid-item-card:: Forecasting strategies
+      :text-align: center
+      :link: tutorials/208-forecasting_strategies
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How to use different forecasting strategies
+
+   .. grid-item-card:: Mechanics of forecasting
+      :text-align: center
+      :link: tutorials/209-mechanics_of_forecasting
+      :link-type: doc
+      :class-header: card-tutorial-intermediate
+
+      ^^^
+      How pipelines are making forecasts under the hood
+
+Advanced
+--------
+
+.. grid:: 1 2 2 2
+   :gutter: 2
+
+   .. grid-item-card:: Custom model and transform
+      :text-align: center
+      :link: tutorials/301-custom_transform_and_model
+      :link-type: doc
+      :class-header: card-tutorial-advanced
+
+      ^^^
+      How to define your own model and transform
+
+   .. grid-item-card:: Inference
+      :text-align: center
+      :link: tutorials/302-inference
+      :link-type: doc
+      :class-header: card-tutorial-advanced
+
+      ^^^
+      How to save pipeline and use it later on new data
+
+   .. grid-item-card:: Hierarchical time series
+      :text-align: center
+      :link: tutorials/303-hierarchical_pipeline
+      :link-type: doc
+      :class-header: card-tutorial-advanced
+
+      ^^^
+      How to work with hierarchical time series
+
+   .. grid-item-card:: Forecasting interpretation
+      :text-align: center
+      :link: tutorials/304-forecasting_interpretation
+      :link-type: doc
+      :class-header: card-tutorial-advanced
+
+      ^^^
+      How to perform forecast decomposition for interpretation
+
+   .. grid-item-card:: Classification
+      :text-align: center
+      :link: tutorials/305-classification
+      :link-type: doc
+      :class-header: card-tutorial-advanced
+
+      ^^^
+      How to perform time series classification
diff --git a/examples/01-get_started.ipynb → examples/101-get_started.ipynb b/examples/01-get_started.ipynb → examples/101-get_started.ipynb
@@ -6,7 +6,7 @@
    "source": [
     "# Get started\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/01-get_started.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/101-get_started.ipynb)"
    ]
   },
   {

diff --git a/examples/02-backtest.ipynb → examples/102-backtest.ipynb b/examples/02-backtest.ipynb → examples/102-backtest.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# Backtest: validation on historical data\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/02-backtest.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/102-backtest.ipynb)"
    ]
   },
   {

diff --git a/examples/03-EDA.ipynb → examples/103-EDA.ipynb b/examples/03-EDA.ipynb → examples/103-EDA.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# EDA\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/03-EDA.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/103-EDA.ipynb)"
    ]
   },
   {

diff --git a/examples/04-exogenous_data.ipynb → examples/201-exogenous_data.ipynb b/examples/04-exogenous_data.ipynb → examples/201-exogenous_data.ipynb
@@ -10,7 +10,7 @@
    "source": [
     "# Regressors and exogenous data\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/04-exogenous_data.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/201-exogenous_data.ipynb)"
    ]
   },
   {

diff --git a/examples/06-NN_examples.ipynb → examples/202-NN_examples.ipynb b/examples/06-NN_examples.ipynb → examples/202-NN_examples.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# Deep learning examples\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/06-NN_examples.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/202-NN_examples.ipynb)"
    ]
   },
   {

diff --git a/examples/07-ensembles.ipynb → examples/203-ensembles.ipynb b/examples/07-ensembles.ipynb → examples/203-ensembles.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# Ensembles\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/07-ensembles.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/203-ensembles.ipynb)"
    ]
   },
   {

diff --git a/examples/08-outliers.ipynb → examples/204-outliers.ipynb b/examples/08-outliers.ipynb → examples/204-outliers.ipynb
@@ -7,7 +7,7 @@
    "source": [
     "# Outliers\n",
     "\n",
-    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/08-outliers.ipynb)"
+    "[![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/tinkoff-ai/etna/master?filepath=examples/204-outliers.ipynb)"
    ]
   },
   {