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Create a futuristic letterhead for “THE SENTINEL REPORT.” The design should embody the aesthetic of a hyper-realistic cybernetic intelligence being — sleek, precise, and data-driven. At the top center, place the title “THE SENTINEL REPORT” in bold, modern typography, metallic silver with a subtle cyan neon glow. The font should feel futuristic, geometric, and authoritative, like a classified intelligence briefing. Behind or above the title, integrate a minimalist emblem inspired by the cybernetic character: a stylized humanoid head silhouette with glowing circuitry patterns or digital halo rings, kept subtle so the letterhead remains professional and not overly busy. Use a dark background accent along the header (deep gray or midnight black), with thin cyan-blue circuit lines branching outward like a digital framework, fading into white space below for the body text area. At the footer, repeat the theme with a thin glowing line or data-stream motif, accompanied by small icons (circuit fragments, binary code, or subtle holographic grids) to reinforce the data-intelligence identity. Overall look: cinematic, high-tech, and mysterious — like an official transmission from a digital sentinel. Style Keywords: futuristic, cybernetic, classified report, neon glow accents, clean professional layout, cinematic intelligence dossier.