.space-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.star {
    position: absolute;
    background-color: white;
    border-radius: 50%;
    opacity: var(--opacity);
    animation: twinkle var(--duration) infinite alternate;
}

@keyframes twinkle {
    0% { opacity: 0.2; }
    100% { opacity: var(--opacity); }
}

.shooting-star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: linear-gradient(to right, rgba(255,255,255,0) 0%, rgba(255,255,255,1) 100%);
    transform: rotate(45deg);
    animation: shoot var(--duration) linear;
}

@keyframes shoot {
    0% { 
        transform: translateX(0) translateY(0) rotate(45deg);
        opacity: 1;
    }
    100% { 
        transform: translateX(var(--distance)) translateY(var(--distance)) rotate(45deg);
        opacity: 0;
    }
}

.nebula {
    position: absolute;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.15;
}

.language-btn {
    transition: all 0.3s ease;
    transform: scale(1);
}

.language-btn:hover {
    transform: scale(1.05);
}

.gradient-text {
    background: linear-gradient(to right, #6366f1, #8b5cf6);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}