/* ========================================
   nexUS Observatories - Effects & Animations
   Stars, Keyframes, Transitions
   ======================================== */

/* Stars Background */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.star {
    position: absolute;
    background: #fff;
    border-radius: 50%;
    animation: twinkle var(--duration) infinite ease-in-out;
    will-change: opacity;
}

/* Keyframe Animations */
@keyframes twinkle {
    0%, 100% { opacity: 0.2; }
    50% { opacity: 1; }
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes slideInVideo {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes glow {
    from {
        filter: drop-shadow(0 0 25px rgba(0, 242, 254, 0.5));
    }
    to {
        filter: drop-shadow(0 0 35px rgba(0, 242, 254, 0.8));
    }
}

@keyframes pulse-arrow {
    0%, 100% { opacity: 0.5; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.2); }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(79, 172, 254, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(79, 172, 254, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(79, 172, 254, 0);
    }
}

/* Live Indicator */
.live-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    background: #ff0000;
    border-radius: 50%;
    animation: pulse 2s infinite;
}