Echoes of the void (souls like boss fights)

Create a complete browser-based 3D boss-rush game using HTML, CSS, and JavaScript with Three.js from a CDN. Keep it self-contained and directly playable in a browser without any build step.

The game should be a stylish third-person “souls-like” arena experience with:
- player movement, sprint, dodge roll with i-frames, melee attack, third-person camera
- health/stamina UI, boss name/health UI, death and victory screens, main menu
- responsive menu layout that works on smaller screens and can scroll if needed
- procedural audio using Web Audio API
- strong visual presentation with emissive materials, particles, attack telegraphs, fog, lighting, and polished boss effects

Build a circular arena with environmental detail, not just a flat floor. Include things like pillars, glowing runes, crystals, rim detail, lighting accents, and other atmospheric touches. The world should feel intentional and visually rich.

Create 5 bosses, each with:
- a distinct model/silhouette
- unique theme and color identity
- unique moves and attack patterns
- readable telegraphs
- different gameplay feel from the others

Boss 1 through 4 should each feel original and varied. Include melee pressure, AoEs, movement attacks, projectiles, or other mechanics as appropriate, but avoid making them feel repetitive.

Boss 5 should be the final boss and the most elaborate encounter:
- it must have 2 phases
- the second phase should be a rebirth/transformation, not just a recolor
- the two phases should play differently
- it should be only a little harder than the earlier bosses, not unfair
- its model should be more detailed than the others
- it should have the best effects and presentation in the game
- it should interact with the world in some way
- the world should visibly change during the phase transition

For the final boss, make sure phase 2 includes a meteor-style attack:
- it marks the player’s current location with a circle that stays there
- a meteor appears in the sky
- after a delay, the meteor crashes into that marked area and damages everything inside

Also give phase 1 its own original signature mechanics, not generic repeats of attacks from other bosses.

General design goals:
- make the game feel polished, readable, and fun
- prioritize strong visual identity and distinct boss mechanics
- keep combat fair and dodgeable
- make melee hit detection forgiving enough for floating or tall bosses
- structure the code clearly with reusable systems for player logic, bosses, particles, telegraphs, and world state
- include cleanup/reset logic when changing bosses or returning to menu

Return the full complete code only.