/* Drone Event */
.drone-unit {
    position: absolute;
    width: 60px;
    height: 40px;
    background: url('../assets/images/pwa/drone.png') no-repeat center center; /* Placeholder if image missing */
    background-size: contain;
    z-index: 1000;
    cursor: pointer;
    pointer-events: auto;
    filter: drop-shadow(0 0 10px var(--neon-cyan));
    transition: transform 0.1s;
}

/* Fallback if no image */
.drone-unit::before {
    content: '🛸';
    font-size: 40px;
    position: absolute;
    top: -10px;
    left: 0;
}

.drone-unit:active {
    transform: scale(0.9);
}

@keyframes flyRight {
    from { left: -100px; transform: translateY(0) rotate(5deg); }
    to { left: 120%; transform: translateY(-50px) rotate(-5deg); }
}

@keyframes flyLeft {
    from { left: 120%; transform: translateY(0) rotate(-5deg); }
    to { left: -100px; transform: translateY(50px) rotate(5deg); }
}