「THIRTY」は FontVibe AI で作成したラグジュアリーバースデーの文字エフェクトです。深く暗い背景に映える、上品な金箔の文字。カラフルな紙吹雪を使わず、洗練された金の文字とほのかな輝きだけで仕上げる、ミニマルな装飾のプレミアムなバースデーエフェクトです。節目のお祝いや高級感のあるカードに最適です。

rendered in luxury gold foil birthday style. Letters in premium metallic gold — gradient from bright gold highlight to deep warm shadow, subtle surface sheen and fine gold dust particles. Deep dark background (near-black or deep navy). Clean minimal composition — no colorful confetti, no colored balloons. Optional fine gold border frame or minimal gold star scatter (≤8 pieces). Wide letter spacing. High contrast gold-on-dark. Premium printing quality aesthetic. Near-black deep background fills entire frame. Perfectly centered single-word layout: "THIRTY" centered, filling 72% of frame width. Wide letter spacing — letters breathe. Thin gold hairline border frame inset 6% from all edges — elegant rectangle. Below the word: tiny gold italic caption "a new chapter begins" about 18% frame width. Minimal gold star scatter — 6 tiny gold diamond shapes distributed asymmetrically in the dark space. No balloons, no confetti, no colored elements. Gold on black only. Luxury printing aesthetic.