Portal in the Dark Forest: Photorealistic Night Scene

Photorealistic scene of a glowing portal standing in a dark, dense forest at night. The portal is a circular ring of ancient, weathered stones covered in moss and ivy, about the height of a person, with runes etched along the outer rim. A swirling core of electric cyan energy and smoky violet mist glows within the ring, casting cool light on the damp forest floor. Surrounding trees are tall pines and oaks, trunks slick with rain, roots twisting through a mossy carpet with ferns and mushrooms. Mist and fog drift between the trees; a faint moon peeks through the cloud cover, providing a subtle backlight. The ground is wet and reflective, with scattered leaves and a fallen log in the foreground. Render in cinematic, photorealistic style with 35mm lens perspective, shallow depth of field, high dynamic range, volumetric lighting, and detailed textures: bark, moss, stone, and water droplets on leaves. Palette of deep greens and blues, portal glow in cyan and purple, with warm ambient highlights. The scene should feel mysterious, as if the portal is a doorway to another world.