.bg-brand-gradient {
    position: relative;
    overflow: hidden;
}

.circles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    margin: 0;
    padding: 0;
    z-index: 0;
    pointer-events: none;
}

.circles li {
    position: absolute;
    display: block;
    list-style: none;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.15);
    animation: animateCircles 25s linear infinite;
    bottom: -150px;
    border-radius: 10px;
}

.circles li:nth-child(1) { left: 25%; width: 80px; height: 80px; animation-delay: -5s; }
.circles li:nth-child(2) { left: 10%; width: 20px; height: 20px; animation-delay: -2s; animation-duration: 12s; }
.circles li:nth-child(3) { left: 70%; width: 20px; height: 20px; animation-delay: -14s; }
.circles li:nth-child(4) { left: 40%; width: 60px; height: 60px; animation-delay: -9s; animation-duration: 18s; }
.circles li:nth-child(5) { left: 65%; width: 20px; height: 20px; animation-delay: -18s; }
.circles li:nth-child(6) { left: 75%; width: 110px; height: 110px; animation-delay: -7s; }
.circles li:nth-child(7) { left: 35%; width: 150px; height: 150px; animation-delay: -12s; }
.circles li:nth-child(8) { left: 50%; width: 25px; height: 25px; animation-delay: -22s; animation-duration: 45s; }
.circles li:nth-child(9) { left: 20%; width: 15px; height: 15px; animation-delay: -15s; animation-duration: 35s; }
.circles li:nth-child(10) { left: 85%; width: 150px; height: 150px; animation-delay: -4s; animation-duration: 11s; }

@keyframes animateCircles {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
        border-radius: 10px;
    }
    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
        border-radius: 50%;
    }
}

.modern-nav .nav-container {
    position: relative;
    z-index: 1;
}