A warm Brazilian living room at night during Christmas. A child looks up in awe as 30-meter warm white LED string lights wrap around the tree and windows. The lights gently fade in and out (“slow fade” mode). A parent’s hand taps the controller—placed safely on a dry side table—to switch to “twinkle.” The child smiles. On-screen bold Portuguese text appears: “O brilho que aquece seu Natal ❤️”. Natural pauses for voiceover. Soft golden lighting, shallow depth of field, vertical 9:16.