Create a cozy premium herbal tea advertising poster for a fictional brand "AMBER WILD". FORMAT: 4:5 vertical, warm wellness layout. SUBJECT: a glass mug of vivid amber sea-buckthorn tea with a dramatic citrus slice, rosemary sprig and dried orange wheel, steam rising gently. BACKGROUND: warm golden gradient with soft botanical texture. LIGHTING: warm cozy side light, glowing amber liquid, glistening steam. TYPOGRAPHY: elegant serif logo "AMBER WILD" top-center, tiny tagline "Wild. Warm. Alive." bottom. FINISH: 8k, hyper-realistic, inviting finish.