.particle {
    position: fixed;
    pointer-events: none;
    z-index: -1;
    border-radius: 50%;
    animation: float 15s linear infinite;
}

.particle::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: inherit;
    border-radius: inherit;
    animation: pulse 2s ease-out infinite;
}

@keyframes float {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(30vw, -30vh) rotate(120deg);
    }
    66% {
        transform: translate(-30vw, -15vh) rotate(240deg);
    }
    100% {
        transform: translate(0, 0) rotate(360deg);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.8;
    }
    50% {
        transform: scale(1.5);
        opacity: 0.4;
    }
    100% {
        transform: scale(0.8);
        opacity: 0;
    }
}