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var(--border-default);box-shadow:inset 0 1px #ffffff1f}.property-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:18px;background:transparent}.property-slider::-webkit-slider-runnable-track{height:8px;border-radius:999px;background:linear-gradient(90deg,#6366f1c7,#3b82f673);box-shadow:inset 0 0 0 1px var(--border-subtle)}.property-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:18px;height:18px;margin-top:-5px;border-radius:50%;border:2px solid rgba(255,255,255,.92);background:var(--accent);box-shadow:0 4px 10px #0f172a40}.property-slider::-moz-range-track{height:8px;border-radius:999px;background:linear-gradient(90deg,#6366f1c7,#3b82f673);box-shadow:inset 0 0 0 1px var(--border-subtle)}.property-slider::-moz-range-thumb{width:18px;height:18px;border-radius:50%;border:2px solid rgba(255,255,255,.92);background:var(--accent);box-shadow:0 4px 10px 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16px}}.canvas-container{flex:1;position:relative;overflow:hidden;background:var(--bg-base);display:flex;align-items:center;justify-content:center;touch-action:none;-ms-touch-action:none;-webkit-user-select:none;user-select:none}.canvas-container canvas{position:absolute;top:0;left:0;width:100%;height:100%}#overlay-canvas{pointer-events:none;z-index:2}#main-canvas{z-index:1}.color-hud{position:fixed;z-index:50;display:flex;align-items:stretch;gap:0;background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-default);border-radius:var(--radius-md);box-shadow:var(--shadow-md);pointer-events:none;overflow:hidden;min-width:190px;transition:opacity var(--transition-fast)}.hud-preview{width:48px;flex-shrink:0}.hud-info{padding:8px 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