/* VR Button Styling */
#vr-button-container {
    position: absolute;
    bottom: 80px;
    right: 20px;
    z-index: 1000;
}

#vr-button {
    padding: 12px 24px;
    border: 2px solid #ffffff;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.7);
    color: #ffffff;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    font-family: Arial, sans-serif;
    transition: all 0.3s ease;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

#vr-button:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.2);
    border-color: #4CAF50;
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(76, 175, 80, 0.5);
}

#vr-button:active:not(:disabled) {
    transform: scale(0.95);
}

#vr-button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    border-color: #999999;
    background: rgba(0, 0, 0, 0.5);
}

/* VR Mode Indicator */
#vr-button[data-vr-active="true"] {
    background: rgba(76, 175, 80, 0.7);
    border-color: #4CAF50;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 0 20px rgba(76, 175, 80, 0.5);
    }
    50% {
        box-shadow: 0 0 30px rgba(76, 175, 80, 0.8);
    }
}