diff --git a/docs/runtime/access.md b/docs/runtime/access.md
new file mode 100644
index 0000000..4a02dc8
--- /dev/null
+++ b/docs/runtime/access.md
@@ -0,0 +1,21 @@
+---
+icon: material/key
+description: Member accessibility levels.
+---
+# Accessibility levels
+
+Access modifier|Description
+-:|:-
+[`public`]()|Access isn't restricted.
+[`friend`]()|Access is limited to the current library or types derived from the containing type.
+[`protected`]()|Access is limited to container or types derived from containing type.
+[`internal`]()|Access is limited to the current library.
+[`family`]()|Access is limited to the container or types derived from the containing type within the current library.
+[`private`]()|Access is limited to the container.
+
+Member always can be accessed from the same container scope. This cannot be changed.
+
+If no access modifier is presented in a member declaration, `private` modifier is used.
+
+!!! warning
+	Modifiers `protected`, `friend`, `family` are not valid on members inside modules or [sealed](inheritance.md#type-sealing) types.
\ No newline at end of file
diff --git a/docs/runtime/inheritance.md b/docs/runtime/inheritance.md
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+++ b/docs/runtime/inheritance.md
@@ -0,0 +1,12 @@
+---
+icon: material/graph
+description: Types inheritance, virtual methods, abstract types and sealing.
+---
+# Inheritance
+
+## Type sealing
+
+!!! warning
+
+    Site still in developing...
+    Please wait
\ No newline at end of file
diff --git a/mkdocs.yml b/mkdocs.yml
index 419c6d6..f7bbb9c 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -135,6 +135,8 @@ extra:
 nav:
   - index.md
   - Runtime:
+    - runtime/access.md
+    - runtime/inheritance.md
     - Bytecodes:
       - runtime/bytecode/nope.md
       - runtime/bytecode/break.md