Consistent 3/4 front angle matching the hearth base. Generate subject only with Transparent pixels for background. Cool neutral ambient light. Single flat stone carved with Norse runes set into a hearth base surface, wide horizontal. The runes glow faintly from within — a subtle amber-gold inner luminescence that is intrinsic to the stone itself, not reflected firelight. The stone itself is dark slate. The glow is the stone's own magic, not environmental warmth — it would glow even in a cold room. Painterly illustration, dark slate with self-luminous amber runic glow, transparent background, no text.