What are the 8 Gunas used in Kundali matching for marriage?

The 8 Gunas (Ashtakoota) are the eight parameters used in Vedic marriage matching (Guna Milan), each assigned a maximum score: (1) Varna — spiritual/mental compatibility (1 point), (2) Vasya — dominance/submission dynamic (2 points), (3) Tara — health and well-being (3 points), (4) Yoni — physical and sexual compatibility (4 points), (5) Graha Maitri — friendship of ruling planets (5 points), (6) Gana — temperament and nature (6 points), (7) Bhakoot — family and children prospects (7 points), and (8) Nadi — genetic/health compatibility (8 points). The maximum total is 36 points. A match of 18 or above is considered acceptable, 24+ is very good, and 32+ is ideal.