Create an HTML5 match-3 puzzle in a single file.
Theme: aurora glow, soft glass UI, pastel gems.
Board: 8x8 grid; swap adjacent tiles to match 3+.
Rules: clear matches, cascade drops, and award combo bonuses.
Goals: reach a target score within limited moves.
UI: score, moves left, combo multiplier, restart button.
Controls: click two tiles to swap; R to restart.