Luminous dark-fantasy book cover, Sarah J. Maas ACOTAR style, but BRIGHTER and high-contrast with crisp, clearly readable details (not muddy or dark). At the very TOP, small elegant series title in Russian Cyrillic reading "ХРОНИКИ БЕССМЕРТНЫХ ДВОРОВ" in refined thin serif. Just below it, the author name in Russian Cyrillic "ЭЛИС НОКС" in elegant serif. Large centered ornate emblem of a heart wrapped in thorny rose vines with blooming red roses and curling tendrils dripping luminous poison, surrounded by emerald filigree, sharply detailed and well-lit. Bright palette: vivid emerald green, bright blood-red roses, glowing green light. Intricate baroque border, clean composition. At the bottom, luxurious gold-foil serif title in Russian Cyrillic "ДВОР ЯДОВИТЫХ СЕРДЕЦ". Premium fantasy novel cover, symmetrical, sharp focus, high clarity, correct Russian Cyrillic spelling.
