가 멋지네요

is cool

→ 가
phrase Rare #13,480
is cool 가 is a subject particle attached to the noun before it. 멋지네요 is a polite way to express admiration or pleasant surprise, meaning “is cool” or “looks great.”
KO: 차가 멋지네요.
EN: The car is cool.

목걸이가 멋지네요

That necklace looks great.

— 엑소시스트: 믿는 자 (2023)

배지가 멋지네요

That badge looks cool.

— 데드 돈 다이 (2019)

스튜디오가 멋지네요

The studio looks great.

— 택시 블루스 (1990)