The bride will be wearing red and gold, so anything except red is acceptable.

No! Guests can certainly wear Indian attire if they would like, but Western formalwear is completely fine.

Common styles for women are lehengas and saris. Men typically wear sherwanis and kurtas. The following link is a good place to start if you are looking for more details: https://www.theknot.com/content/what-to-wear-indian-wedding.

Although there will be time between the ceremony and the reception, changing facilities will be limited and we will not have space to store clothes throughout the evening. We encourage guests to find an outfit they will feel comfortable in the entire evening.

Irrespective of whether you are considering Indian or Western attire, selecting lighter fabrics is important as it is hot in Florida during July, even in the evenings. We recommend cotton, silk, linen, and other breathable materials.