.index-wrapper {
    background: linear-gradient(135deg, 
        #FF0000 10%, /* Intense Red (Left) */
        #6A0DAD 30%, /* Deep Purple */
        #4682B4 50%, /* Lighter Blue (Center) */
        #1E90FF 70%, /* Deep Sky Blue */
        #8B0000 90%  /* Dark Red (Right) */
    );
    width: 100%;
    min-height: 100vh; /* Ensures full-page coverage */
    padding: 30px 0;
}