/* Stars Background */
.stars-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.star {
    position: absolute;
    background-color: #fff;
    border-radius: 50%;
    opacity: 0.3;
    animation: twinkle 3s infinite;
}

.star.small {
    width: 1px;
    height: 1px;
}

.star.medium {
    width: 2px;
    height: 2px;
}

.star.large {
    width: 3px;
    height: 3px;
}

@keyframes twinkle {
    0%, 100% {
        opacity: 0.15;
    }
    50% {
        opacity: 0.4;
    }
}