🌄 New Biome: The Highlands

A rare biome above normal mountains.

Features:

* Rolling stone fields
* Giant pine forests
* Mist in mornings
* Deep valleys
* Natural stone arches
* Rivers forming waterfalls

New blocks:

* Chalk
* Packed Stone
* Mossy Cobble Variants
* Wildflowers

Rare mobs:

* Mountain goats (larger)
* Marmots
* Golden Eagles

 🏰 New Structure: The Skyfort

Large ruined fortress built into cliffs.

Inside:

* Broken libraries
* Hanging bridges
* Wind-powered mechanisms
* Secret vaults

Not a combat dungeon.

Exploration-based.

Loot:

* Banner fragments
* Ancient maps
* Decorative stone styles
* Rare music discs

 🌲 New Sub-Biome: Hidden Valleys

Small pockets hidden between mountains.

Inside:

* Warm climate
* Giant trees
* Flower fields
* Mini ruins
* Crystal ponds

Very peaceful.