.custom-scrollbar::-webkit-scrollbar {
    width: 4px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background-color: #d4d4d8;
    border-radius: 10px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background-color: #a1a1aa;
}
.dark .custom-scrollbar::-webkit-scrollbar-thumb {
    background-color: #3f3f46;
}
.dark .custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background-color: #52525b;
}
.grid-bg {
    background-size: 40px 40px;
    background-image: 
        linear-gradient(to right, rgba(0, 0, 0, 0.05) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(0, 0, 0, 0.05) 1px, transparent 1px);
}
.dark .grid-bg {
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}
.vignette-mask {
    background: radial-gradient(circle, transparent 40%, #fafafa 100%);
}
.dark .vignette-mask {
    background: radial-gradient(circle, transparent 40%, #09090b 100%);
}
input[type=range] {
    -webkit-appearance: none;
    background: transparent;
    width: 100%;
}
input[type=range]:focus {
    outline: none;
}
input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 3px;
    cursor: pointer;
    background: #e4e4e7;
    border-radius: 3px;
    transition: background 0.2s;
}
.dark input[type=range]::-webkit-slider-runnable-track {
    background: #27272a;
}
input[type=range]:hover::-webkit-slider-runnable-track {
    background: #d4d4d8; 
}
.dark input[type=range]:hover::-webkit-slider-runnable-track {
    background: #3f3f46; 
}
input[type=range]::-webkit-slider-thumb {
    height: 14px;
    width: 14px;
    border-radius: 50%;
    background: #ffffff;
    border: 2.5px solid #4f46e5;
    cursor: grab;
    -webkit-appearance: none;
    margin-top: -5.5px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    transition: transform 0.1s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.1s;
}
.dark input[type=range]::-webkit-slider-thumb {
    border-color: #6366f1;
    background: #18181b;
}
input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.3);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.1);
}
.dark input[type=range]::-webkit-slider-thumb:hover {
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.15);
}
input[type=range]::-webkit-slider-thumb:active {
    cursor: grabbing;
    transform: scale(1.1);
}
.corner-handle {
    position: absolute;
    width: 20px;
    height: 20px;
    background-color: #ffffff;
    border: 3px solid #4f46e5;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    cursor: grab;
    z-index: 50;
    box-shadow: 0 2px 6px rgba(0,0,0,0.2), 0 0 0 3px rgba(255,255,255,0.8);
    transition: transform 0.15s cubic-bezier(0.4, 0, 0.2, 1), border-width 0.15s;
    will-change: transform;
}
.dark .corner-handle {
    border-color: #6366f1;
    background-color: #09090b;
    box-shadow: 0 4px 12px rgba(0,0,0,0.6), 0 0 0 3px rgba(9,9,11,0.8);
}
.corner-handle:hover {
    transform: translate(-50%, -50%) scale(1.25);
    border-width: 4px;
}
.corner-handle:active {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.1);
    background-color: #4f46e5;
}
.dark .corner-handle:active {
    background-color: #6366f1;
}
.gpu-accelerated {
    will-change: transform;
    transform-style: preserve-3d;
}