:root{--color-primary-900: #0A2540;--color-primary-800: #0E3358;--color-primary-700: #164B78;--color-primary-600: #1E5F94;--color-primary-500: #2773B0;--color-primary-400: #4A92C8;--color-primary-300: #7EB0D6;--color-primary-200: #B2CEE5;--color-primary-100: #E6F1F9;--color-primary-50: #F2F8FC;--color-accent-900: #0A4D46;--color-accent-800: #0E6860;--color-accent-700: #147A6F;--color-accent-600: #1A9689;--color-accent-500: #20B2A5;--color-accent-400: #4DC4B9;--color-accent-300: #7AD5CD;--color-accent-200: #A7E6E1;--color-accent-100: #D4F5F2;--color-accent-50: #EAFAF8;--color-neutral-950: #0F0F10;--color-neutral-900: #1A1A1C;--color-neutral-800: #2D2D30;--color-neutral-700: #404045;--color-neutral-600: #5A5A61;--color-neutral-500: #7A7A82;--color-neutral-400: #9A9AA3;--color-neutral-300: #C4C4CA;--color-neutral-200: #E2E2E6;--color-neutral-100: #F4F4F6;--color-neutral-50: #FAFAFB;--color-white: #FFFFFF;--color-status-draft: #E5A000;--color-status-draft-light: #FFF8E6;--color-status-draft-border: #FFCD66;--color-status-modified: #D96D00;--color-status-modified-light: #FFF2E6;--color-status-modified-border: #FFB366;--color-status-approved: #0078B8;--color-status-approved-light: #E6F3FA;--color-status-approved-border: #66B8E0;--color-status-published: #00875A;--color-status-published-light: #E6F5EF;--color-status-published-border: #66C9A3;--color-node-operator: #6C5CE7;--color-node-operator-light: #F0EBFF;--color-node-operator-border: #D4CCF7;--color-node-operand: #0078B8;--color-node-operand-light: #E6F3FF;--color-node-operand-border: #B3D9FF;--color-node-value: #00875A;--color-node-value-light: #E6FFF0;--color-node-value-border: #B3F0D4;--color-success: #00875A;--color-success-light: #D4EDDA;--color-warning: #E5A000;--color-warning-light: #FFF3CD;--color-error: #DC2626;--color-error-light: #FEE2E2;--color-info: #0078B8;--color-info-light: #E6F3FA;--font-display: "DM Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Monaco", "Menlo", "Consolas", monospace;--text-xs: .6875rem;--text-sm: .8125rem;--text-base: .9375rem;--text-md: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--leading-none: 1;--leading-tight: 1.25;--leading-snug: 1.375;--leading-normal: 1.5;--leading-relaxed: 1.625;--tracking-tighter: -.02em;--tracking-tight: -.01em;--tracking-normal: 0;--tracking-wide: .025em;--tracking-caps: .08em;--space-0: 0;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--space-20: 5rem;--radius-none: 0;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--radius-2xl: 1rem;--radius-full: 9999px;--border-width: 1px;--border-width-2: 2px;--shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px -1px rgba(0, 0, 0, .1);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1), 0 4px 6px -4px rgba(0, 0, 0, .1);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 8px 10px -6px rgba(0, 0, 0, .1);--shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, .25);--shadow-inner: inset 0 2px 4px 0 rgba(0, 0, 0, .05);--shadow-primary: 0 4px 14px -3px rgba(39, 115, 176, .3);--shadow-accent: 0 4px 14px -3px rgba(32, 178, 165, .3);--transition-fast: .15s;--transition-base: .2s;--transition-slow: .3s;--transition-slower: .5s;--ease-default: cubic-bezier(.4, 0, .2, 1);--ease-in: cubic-bezier(.4, 0, 1, 1);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-in-out: cubic-bezier(.4, 0, .2, 1);--ease-bounce: cubic-bezier(.34, 1.56, .64, 1);--z-base: 0;--z-dropdown: 100;--z-sticky: 200;--z-fixed: 300;--z-modal-backdrop: 400;--z-modal: 500;--z-popover: 600;--z-tooltip: 700;--focus-ring-width: 3px;--focus-ring-color: rgba(39, 115, 176, .4);--focus-ring-offset: 2px}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes fadeOut{0%{opacity:1}to{opacity:0}}@keyframes slideUp{0%{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}@keyframes slideDown{0%{opacity:0;transform:translateY(-16px)}to{opacity:1;transform:translateY(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes scaleOut{0%{opacity:1;transform:scale(1)}to{opacity:0;transform:scale(.95)}}@keyframes modalEnter{0%{opacity:0;transform:scale(.96) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}@keyframes backdropFadeIn{0%{opacity:0;-webkit-backdrop-filter:blur(0);backdrop-filter:blur(0)}to{opacity:1;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}@keyframes shake{0%,to{transform:translate(0)}10%,30%,50%,70%,90%{transform:translate(-4px)}20%,40%,60%,80%{transform:translate(4px)}}@keyframes lift{0%{transform:translateY(0);box-shadow:var(--shadow-sm)}to{transform:translateY(-2px);box-shadow:var(--shadow-md)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes dotPulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.2);opacity:.8}}@keyframes blockMoveUp{0%{transform:translateY(12px);opacity:.7}to{transform:translateY(0);opacity:1}}@keyframes blockMoveDown{0%{transform:translateY(-12px);opacity:.7}to{transform:translateY(0);opacity:1}}.animate-spin{animation:spin 1s linear infinite}.animate-fade-in{animation:fadeIn var(--transition-base) var(--ease-out)}.animate-slide-up{animation:slideUp var(--transition-slow) var(--ease-out)}.animate-slide-down{animation:slideDown 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var(--color-neutral-200);padding-top:var(--space-3);display:flex;flex-direction:column;gap:var(--space-2)}.copy-rule-modal__preview-label{font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--color-neutral-500);text-transform:uppercase;letter-spacing:.05em}.copy-rule-modal__preview-code{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-neutral-700);background-color:var(--color-neutral-50);padding:var(--space-2) var(--space-3);border-radius:var(--radius-md);max-height:80px;overflow-y:auto;word-break:break-all;line-height:var(--leading-relaxed)}.copy-rule-modal__footer{display:flex;justify-content:flex-end;gap:var(--space-3);padding:var(--space-5) var(--space-6);border-top:var(--border-width) solid 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var(--transition-fast) var(--ease-default);background:var(--color-white);border-radius:var(--radius-md);padding:var(--space-1);box-shadow:var(--shadow-md);border:var(--border-width) solid var(--color-neutral-200);z-index:10}.tree-node__card:hover .tree-node__actions{opacity:1}.tree-node__card--selected .tree-node__actions,.tree-node__card:focus-within .tree-node__actions{opacity:1}.tree-node__drag-handle,.tree-node__swap-btn,.tree-node__delete-btn{background:var(--color-neutral-100);border:var(--border-width) solid var(--color-neutral-200);padding:var(--space-1);cursor:pointer;color:var(--color-neutral-600);font-size:var(--text-sm);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;min-width:24px;min-height:24px;transition:all var(--transition-fast) var(--ease-default)}.tree-node__drag-handle{cursor:grab}.tree-node__drag-handle:hover{background:var(--color-neutral-200);color:var(--color-neutral-800)}.tree-node__drag-handle:active{cursor:grabbing}.tree-node__swap-btn:hover{background:var(--color-primary-100);color:var(--color-primary-600);border-color:var(--color-primary-300)}.tree-node__delete-btn{position:static}.tree-node__delete-btn:hover{background:var(--color-error-light);color:var(--color-error);border-color:#dc26264d}.tree-node__collapse-toggle{position:absolute;bottom:-10px;left:50%;transform:translate(-50%);width:20px;height:20px;border-radius:var(--radius-full);border:var(--border-width) solid var(--color-neutral-300);background:var(--color-white);color:var(--color-neutral-500);font-size:10px;cursor:pointer;display:flex;align-items:center;justify-content:center;z-index:5;transition:all var(--transition-fast) var(--ease-default);padding:0;line-height:1}.tree-node__collapse-toggle:hover{background:var(--color-neutral-200);color:var(--color-neutral-800);border-color:var(--color-neutral-400)}.tree-node__collapsed-badge{display:inline-flex;align-items:center;justify-content:center;margin-top:var(--space-3);padding:var(--space-1) var(--space-3);font-size:var(--text-xs);font-weight:var(--font-medium);color:var(--color-neutral-600);background-color:var(--color-neutral-100);border:var(--border-width) solid var(--color-neutral-300);border-radius:var(--radius-full)}@keyframes node-pulse{0%,to{box-shadow:0 0 #14b8a673}50%{box-shadow:0 0 0 8px #14b8a62e}}.tree-node__card--highlighted{box-shadow:0 0 #14b8a673;animation:node-pulse 1.8s ease-in-out infinite}.tree-node__add-slot{display:flex;align-items:center}.tree-node__add-btn{width:32px;height:32px;border:2px dashed 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var(--ease-default);display:flex;align-items:center;justify-content:center}.tree-node__add-btn:hover{border-color:var(--color-primary-500);color:var(--color-primary-500);background:var(--color-primary-50)}.tree-node__children{display:flex;gap:var(--space-5);margin-top:var(--space-5);position:relative;justify-content:center;padding-top:var(--space-5)}.tree-node__children:before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background-color:var(--color-neutral-300)}.tree-node__children:after{content:"";position:absolute;top:-20px;left:50%;transform:translate(-50%);width:2px;height:20px;background-color:var(--color-neutral-300)}.tree-node__child-slot{position:relative;display:flex;flex-direction:column;align-items:center}.tree-node__child-slot:before{content:"";position:absolute;top:-20px;left:50%;transform:translate(-50%);width:2px;height:20px;background-color:var(--color-neutral-300)}.drop-zone{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;min-width:100px;min-height:60px;border:2px dashed var(--color-neutral-300);border-radius:var(--radius-lg);background-color:var(--color-neutral-50);color:var(--color-neutral-500);font-size:var(--text-xs);transition:all var(--transition-fast) var(--ease-default)}.drop-zone--active{border-color:var(--color-primary-500);background-color:var(--color-primary-50);color:var(--color-primary-600)}.drop-zone--selected{border-color:var(--color-success);background-color:var(--color-success-light);border-style:solid}.drop-zone:hover{cursor:pointer;border-color:var(--color-neutral-400);background-color:var(--color-neutral-100)}.drop-zone__label{font-size:10px;text-transform:uppercase;letter-spacing:var(--tracking-caps);color:var(--color-neutral-500);margin-bottom:var(--space-1)}.drop-zone__remove-btn{position:absolute;top:-8px;right:-8px;width:20px;height:20px;border-radius:var(--radius-full);border:var(--border-width) solid var(--color-neutral-300);background:var(--color-white);color:var(--color-neutral-500);font-size:var(--text-xs);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:all var(--transition-fast) var(--ease-default);padding:0;line-height:1;z-index:10}.drop-zone:hover .drop-zone__remove-btn{opacity:1}.drop-zone--selected .drop-zone__remove-btn,.drop-zone:focus-within .drop-zone__remove-btn{opacity:1}.drop-zone:focus-visible{outline:2px solid var(--color-primary-500);outline-offset:2px}.drop-zone__remove-btn:hover{background:var(--color-error-light);color:var(--color-error);border-color:#dc26264d}.tree-node--dragging{opacity:.5}.tree-node--dragging .tree-node__card{box-shadow:var(--shadow-xl);transform:scale(1.02)}.tree-node__card--wrap-target{outline:2px dashed 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pulse{0%,to{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.editor-toolbar{display:flex;align-items:center;justify-content:space-between;padding:var(--space-3) var(--space-6);background:var(--color-white);border-bottom:var(--border-width) solid var(--color-neutral-200)}.editor-toolbar__spacer{flex:1;min-width:0}.editor-toolbar__actions{flex:1;display:flex;justify-content:flex-end;gap:var(--space-3);min-width:0}.editor-tabs{display:flex;gap:var(--space-1);padding:var(--space-1);background:var(--color-neutral-200);border-radius:var(--radius-lg)}.editor-tabs__tab{position:relative;display:flex;align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-6);font-family:var(--font-display);font-size:var(--text-sm);font-weight:var(--font-medium);color:var(--color-neutral-600);background:transparent;border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base) 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