:root{--bg: #1e1e22;--panel: #27272c;--panel-alt: #313138;--panel-glass: rgba(39, 39, 44, .92);--border: #3d3d46;--text: #ececf1;--muted: #9898a6;--accent: #3b82f6;--accent-hover: #2563eb;--accent-soft: rgba(59, 130, 246, .22);--stage-bg: #2a2a2e;--danger: #ef4444;--rail-w: 54px;--safe-top: env(safe-area-inset-top, 0px);--safe-bottom: env(safe-area-inset-bottom, 0px);--safe-left: env(safe-area-inset-left, 0px);--safe-right: env(safe-area-inset-right, 0px)}body.sliders-docked{--rail-w: 68px}body.sidebar-collapsed,body.sliders-docked.sidebar-collapsed{--rail-w: 0px}body.sidebar-collapsed .side-rail{display:none!important}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;user-select:none;-webkit-user-select:none}input,select,textarea{user-select:auto;-webkit-user-select:auto}html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe 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var(--border);background:var(--bg);flex-shrink:0}.layer-row.compact-row.active{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 1px var(--accent)}.layer-row.compact-row .layer-thumb{width:44px;height:44px;border-radius:5px}.compact-badge{position:absolute;display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:999px;background:#0f172adb;border:1px solid var(--border);color:var(--muted);pointer-events:none}.compact-badge.off{top:2px;right:2px;color:#fca5a5}.compact-badge.lock{bottom:2px;right:2px;color:#fde68a}.compact-badge.alpha-lock{bottom:2px;left:2px;color:var(--accent);font-weight:800;font-size:10px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}.alpha-lock-t{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:3.5px;border:1.5px solid currentColor;font-size:11px;font-weight:800;line-height:1;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:0}.layer-drag-ghost.compact{left:6px;right:6px;justify-content:center;padding:4px}.panel-head{display:flex;align-items:center;justify-content:space-between;padding:6px 8px;border-bottom:1px solid var(--border)}.panel-head-title{display:flex;flex-direction:column;gap:1px;min-width:0}.layer-drag-tip{font-size:10px;color:var(--muted);font-weight:400;white-space:nowrap}.panel-tools{display:flex;gap:2px}.layer-props{padding:8px;border-bottom:1px solid var(--border);display:flex;flex-direction:column;gap:6px}.layer-list{position:relative;flex:1;overflow-y:auto;padding:6px;display:flex;flex-direction:column;gap:4px}.layer-list.is-reordering{user-select:none}.layer-row{display:flex;align-items:center;gap:4px;padding:5px;border-radius:8px;background:var(--bg);border:1px solid transparent;cursor:pointer;transition:opacity .12s ease,background .12s 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var(--accent);pointer-events:none;z-index:35}.layer-drop-indicator.noop{opacity:.35;box-shadow:none}.layer-thumb{width:36px;height:36px;border-radius:4px;border:1px solid var(--border);background:repeating-conic-gradient(#ccc 0 25%,#fff 0 50%) 0 0 / 10px 10px;flex-shrink:0;image-rendering:pixelated}.layer-info{flex:1;min-width:0}.layer-name{font-size:13px;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.layer-meta{font-size:11px;color:var(--muted)}.opt-group{display:flex;flex-wrap:wrap;align-items:center;gap:6px}.chip{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;border:1px solid var(--border);background:var(--panel-alt);color:var(--text);font-size:12px;white-space:nowrap;cursor:pointer}.chip.primary{background:var(--accent);border-color:var(--accent);color:#fff}.seg{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;flex-shrink:0}.seg 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