레터헤드 디자인

Modern minimal corporate letterhead template with brand name header, contact info footer, elegant serif typography, sage green and cream color palette, flat vector graphic design layout. clean commercial template design, product-friendly layout, clear content blocks, modern Korean design sensibility. diagonal composition with one strong focal point. muted neutral palette with a vivid focal color. Keep the layout organized, readable, and purposeful; avoid clutter and illegible typography.