{% if node.children or node.lessons %}
{% for child_name, child_node in node.children.items() %}
{{ render_tree_node(child_node, depth + 1) }}
{% endfor %}
{% for lesson in node.lessons %}
{% set lesson_relative_path = lesson.path|replace('\\', '/')|replace(course.path|replace('\\', '/'), '')|replace('//', '/')|replace('/', '', 1) %}
{% if lesson.lesson_type == 'video' %}🎥
{% elif lesson.lesson_type == 'audio' %}🎵
{% elif lesson.lesson_type == 'quiz' %}📝
{% elif lesson.lesson_type == 'mixed' %}📦
{% else %}📄{% endif %}
{{ lesson.title }}
{{ lesson.lesson_type|title }}
{% if lesson.completed %}
✓
{% else %}
○
{% endif %}
{% endfor %}