Professional cover design about workplace safety, no text, modern and technological style. Dark blue background with yellow/golden curved elements and light effects. On the left side, a gloved hand holding a laboratory flask with blue liquid, with a danger symbol (skull) nearby. On the bottom section, a split composition with two scenes: An industrial worker wearing full PPE (orange helmet, ear protection, mask) in an environment with sparks. A laboratory scene with gloved hands handling chemical flasks, colored liquids and visible smoke. At the bottom center, modern hazard icons (warning, radiation, biohazard). On the upper right side, transparent laboratory and hazard icons (chemistry, biohazard) as decorative elements. Dramatic lighting, high quality, realistic, professional graphic design style, 4K, highly detailed, no text, no letters, no words.