Using the BTS logo, generate a premium brand identity system poster. Every element — color, tone, texture, and composition — must be derived directly from the logo. No generic outputs. Structure: Vertical 4:5 poster. Soft lavender to deep purple gradient background. Multi-layered grid. Dense, clean, zero dead space. Violet rule lines separate sections. Top: BTS logo in bold clean type. Brand statement: "Beyond The Scene." Identity descriptors: ARTISTIC / EMOTIONAL / GLOBAL. Colors: Primary — Royal Purple #5A2D82, Deep Violet #6A0DAD, Lavender #C8A2C8, White #FFFFFF. Secondary — Soft Lilac #E6D6F5, Silver Gray #D9D9D9, Pastel Purple #BFA2DB. Show large color blocks, HEX codes, usage labels, and a Lavender→Violet→Purple gradient bar. Typography: Display headline "Love Yourself." in white. Purple sans-serif subhead. Soft gray body text. Tiny monospaced caption. Clear 4-level hierarchy. Applications: Album cover mockup. Bright website hero with purple CTA. Mobile app music player UI. Three social posts — bold purple performance, soft emotional pastel, clean lavender lifestyle. Photocard layout. Purple gradient concert billboard. Icons: 8 line icons — music note, lightstick, heart, globe, stage, mic, star, wings. Purple 1.5px strokes. Consistent style. Patterns: Logo split repeat, gradient waves, geometric tiling, soft grid. Micro details: Glow highlights, glassmorphism panels, subtle grain, depth layers. Final feel: Behance top project. Agency-quality. Unmistakably BTS.