/* THE WAVE ANIMATION */
        .wave {
        position: fixed;      /* stick to bottom */
        bottom: 0;
        left: 0;

        width: 100%;          /* stable width, avoids 100vw bug */
        height: 100px;         /* <-- tweak this to adjust wave height */
        
        overflow: hidden;     /* prevents clipping */
        pointer-events: none; /* so it doesn’t block clicks */
        z-index: -1;          /* stays behind content */
        }

        /* keep your animation exactly as-is */
        use {
        animation: move-forever 2s linear infinite;
        }

        use:nth-child(2) {
        animation-duration: 2.5s;
        animation-delay: -1.5s;
        }

        use:nth-child(1) {
        animation-duration: 5s;
        }

        @keyframes move-forever {
        0% { transform: translate(-2px, 0); }
        100% { transform: translate(0px, 0); }
        }



        /* Responsive Design */
        @media (max-width: 768px) {
            .nav-buttons {
                flex-direction: column;
                width: 100%;
                max-width: 300px;
            }

            .nav-btn {
                width: 100%;
            }
        }



        /* ============================= */
        /* Scrollbar – modern slick */
        /* ============================= */

        /* Required base */
        *::-webkit-scrollbar {
            width: 8px;
            height: 8px;
        }

        /* Track */
        *::-webkit-scrollbar-track {
            background: rgba(255,255,255,0.05);
            border-radius: 10px;
        }

        /* Thumb */
        *::-webkit-scrollbar-thumb {
            background: rgba(75,205,121,0.25);
            border-radius: 10px;
            transition: background 0.3s ease;
        }

        /* Hover glow */
        *::-webkit-scrollbar-thumb:hover {
            background: rgba(75,205,121,0.9);
        }

        * {
            scrollbar-width: thin;
            scrollbar-color: rgba(75,205,121,0.6) rgba(255,255,255,0.05);
        }