/* Glassmorphism Utilities */
.glass-panel {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
}

/* Custom Scrollbar for Layer List */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.3);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in-down {
    animation: fadeInDown 0.5s ease-out forwards;
}

/* Layer Toggle Transition Classes */
#layer-panel {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#layer-panel.open {
    opacity: 1;
    transform: scale(1) translateY(0);
    pointer-events: auto;
}

/* Form Elements Polish */
.form-checkbox {
    border-radius: 4px;
    border-color: #cbd5e1;
}

.color-input {
    -webkit-appearance: none;
    border: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    padding: 0;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.color-input::-webkit-color-swatch-wrapper {
    padding: 0;
}
.color-input::-webkit-color-swatch {
    border: none;
    border-radius: 50%;
}

/* Mobile Specific Adjustments */
@media (max-width: 768px) {
    .glass-panel {
        background: rgba(255, 255, 255, 0.85); /* More opaque on mobile for readability */
    }
    
    /* Adjust layer panel position for mobile bottom sheet feel */
    #layer-panel {
        bottom: 100%; /* Above the button */
        left: 0;
        width: 280px; 
        margin-bottom: 0.75rem;
    }
}