:root{--primary-400:#818cf8;--primary-500:#6366f1;--primary-600:#4f46e5;--primary-700:#4338ca;--primary-800:#3730a3;--primary-50:#eef2ff;--primary-100:#e0e7ff;--primary-200:#c7d2fe;--success-500:#10b981;--success-600:#059669;--success-700:#047857;--success-50:#ecfdf5;--success-100:#d1fae5;--warning-500:#f59e0b;--warning-600:#d97706;--warning-700:#b45309;--warning-50:#fffbeb;--warning-100:#fef3c7;--error-500:#ef4444;--error-600:#dc2626;--error-700:#b91c1c;--error-50:#fef2f2;--error-100:#fee2e2;--error-200:#fecaca;--gray-50:#f9fafb;--gray-100:#f3f4f6;--gray-200:#e5e7eb;--gray-300:#d1d5db;--gray-400:#9ca3af;--gray-500:#6b7280;--gray-600:#4b5563;--gray-700:#374151;--gray-800:#1f2937;--gray-900:#111827;--gradient-primary:linear-gradient(135deg,#667eea,#764ba2);--gradient-success:linear-gradient(135deg,#10b981,#059669);--gradient-sunset:linear-gradient(135deg,#f093fb,#f5576c);--gradient-ocean:linear-gradient(135deg,#4facfe,#00f2fe);--gradient-subtle:linear-gradient(135deg,#fdfcfb,#e2d1c3);--spacing-xs:0.25rem;--spacing-sm:0.5rem;--spacing-md:1rem;--spacing-lg:1.5rem;--spacing-xl:2rem;--spacing-2xl:3rem;--radius-sm:0.375rem;--radius-md:0.5rem;--radius-lg:0.75rem;--radius-xl:1rem;--radius-2xl:1.5rem;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.06);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.05);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.04);--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 10px 20px -5px rgba(79,70,229,.2);--shadow-success:0 10px 20px -5px rgba(16,185,129,.2);--shadow-warning:0 10px 20px -5px rgba(245,158,11,.2);--shadow-danger:0 10px 20px -5px rgba(239,68,68,.2);--transition-base:all 0.2s cubic-bezier(0.4,0,0.2,1);--transition-fast:all 0.15s cubic-bezier(0.4,0,0.2,1);--transition-slow:all 0.3s cubic-bezier(0.4,0,0.2,1);--transition-bounce:all 0.3s cubic-bezier(0.68,-0.55,0.265,1.55);--glass-bg:hsla(0,0%,100%,.7);--glass-border:hsla(0,0%,100%,.18);--backdrop-blur:blur(10px)}.fb-app *{box-sizing:border-box;margin:0;padding:0}.fb-app{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--gray-50);color:var(--gray-900);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}.fb-header{background:hsla(0,0%,100%,.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--glass-border);padding:var(--spacing-md) var(--spacing-xl);box-shadow:var(--shadow-md);position:sticky;top:0;z-index:100}.fb-header-content{max-width:1920px;margin:0 auto;justify-content:space-between}.fb-header-content,.fb-logo{display:flex;align-items:center}.fb-logo{font-size:1.5rem;font-weight:800;background:var(--gradient-primary);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;gap:var(--spacing-sm);transition:var(--transition-base)}.fb-logo:hover{transform:scale(1.05)}.fb-main{flex:1;padding:var(--spacing-xl);max-width:1920px;margin:0 auto;width:100%;background:linear-gradient(180deg,var(--gray-50) 0,var(--gray-100) 100%)}.fb-dashboard{animation:fadeIn .3s ease-in-out}.fb-dashboard-header{margin-bottom:var(--spacing-xl)}.fb-dashboard-title{font-size:2rem;font-weight:700;color:var(--gray-900);margin-bottom:var(--spacing-sm)}.fb-dashboard-subtitle{color:var(--gray-600);font-size:1rem}.fb-stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--spacing-lg);margin-bottom:var(--spacing-2xl)}.fb-stat-card{background:#fff;padding:var(--spacing-xl);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);transition:var(--transition-slow);border:1px solid transparent;position:relative;overflow:hidden}.fb-stat-card:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient-primary);opacity:0;transition:var(--transition-base)}.fb-stat-card:hover{transform:translateY(-4px) scale(1.02);box-shadow:var(--shadow-2xl);border-color:var(--primary-100)}.fb-stat-card:hover:before{opacity:1}.fb-stat-label{color:var(--gray-600);font-size:.875rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;margin-bottom:var(--spacing-sm)}.fb-stat-value{font-size:2.25rem;font-weight:800;background:linear-gradient(135deg,var(--gray-900) 0,var(--gray-600) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.fb-stat-icon{width:56px;height:56px;border-radius:var(--radius-xl);display:flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-md);transition:var(--transition-bounce)}.fb-stat-card:hover .fb-stat-icon{transform:rotate(-10deg) scale(1.1)}.fb-stat-icon.primary{background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-600) 100%);color:#fff;box-shadow:var(--shadow-primary)}.fb-stat-icon.success{background:linear-gradient(135deg,var(--success-500) 0,var(--success-600) 100%);color:#fff;box-shadow:var(--shadow-success)}.fb-stat-icon.warning{background:linear-gradient(135deg,var(--warning-500) 0,var(--warning-600) 100%);color:#fff;box-shadow:var(--shadow-warning)}.fb-toolbar{display:flex;align-items:center;justify-content:space-between;gap:var(--spacing-md);margin-bottom:var(--spacing-xl);flex-wrap:wrap}.fb-search-box{position:relative;flex:1;min-width:300px;max-width:500px}.fb-search-input{width:100%;padding:var(--spacing-sm) var(--spacing-md);padding-left:2.5rem;border:1px solid var(--gray-300);border-radius:var(--radius-md);font-size:.875rem;transition:var(--transition-base)}.fb-search-input:focus{outline:none;border-color:var(--primary-600);box-shadow:0 0 0 3px rgba(79,70,229,.1)}.fb-search-icon{position:absolute;left:var(--spacing-md);top:50%;transform:translateY(-50%);color:var(--gray-400);pointer-events:none}.fb-filter-group{display:flex}.fb-btn,.fb-filter-group{gap:var(--spacing-sm);align-items:center}.fb-btn{padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);font-size:.875rem;font-weight:500;cursor:pointer;transition:var(--transition-base);border:none;display:inline-flex;text-decoration:none;white-space:nowrap}.fb-btn:disabled{opacity:.5;cursor:not-allowed}.fb-btn-primary{background:linear-gradient(135deg,var(--primary-500) 0,var(--primary-600) 100%);color:#fff;font-weight:600;box-shadow:var(--shadow-primary)}.fb-btn-primary:hover:not(:disabled){background:linear-gradient(135deg,var(--primary-600) 0,var(--primary-700) 100%);transform:translateY(-2px);box-shadow:0 12px 24px -8px rgba(79,70,229,.3)}.fb-btn-primary:active:not(:disabled){transform:translateY(0)}.fb-btn-secondary{background:#fff;color:var(--gray-700);border:1px solid var(--gray-300);font-weight:500}.fb-btn-secondary:hover:not(:disabled){background:var(--gray-50);border-color:var(--primary-300);color:var(--primary-600);transform:translateY(-1px)}.fb-btn-danger{background:linear-gradient(135deg,var(--error-500) 0,var(--error-600) 100%);color:#fff;font-weight:600;box-shadow:var(--shadow-danger)}.fb-btn-danger:hover:not(:disabled){background:linear-gradient(135deg,var(--error-600) 0,var(--error-700) 100%);transform:translateY(-2px);box-shadow:0 12px 24px -8px rgba(239,68,68,.3)}.fb-btn-danger:active:not(:disabled){transform:translateY(0)}.fb-btn-sm{padding:.375rem var(--spacing-sm);font-size:.8125rem}.fb-btn-icon{padding:var(--spacing-sm);aspect-ratio:1}.fb-forms-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:var(--spacing-lg)}.fb-form-card{background:hsla(0,0%,100%,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-radius:var(--radius-xl);box-shadow:var(--shadow-lg);border:1px solid var(--glass-border);overflow:hidden;transition:var(--transition-slow);display:flex;flex-direction:column;position:relative}.fb-form-card:before{content:"";position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(135deg,transparent 0,var(--primary-50) 100%);opacity:0;transition:var(--transition-base);z-index:0}.fb-form-card:hover{transform:translateY(-6px) scale(1.01);box-shadow:var(--shadow-2xl);border-color:var(--primary-200)}.fb-form-card:hover:before{opacity:1}.fb-form-card-header{padding:var(--spacing-lg);border-bottom:1px solid var(--gray-100);position:relative;z-index:1}.fb-form-card-title{font-size:1.125rem;font-weight:700;color:var(--gray-900);margin-bottom:var(--spacing-xs);transition:var(--transition-base)}.fb-form-card:hover .fb-form-card-title{color:var(--primary-600)}.fb-form-card-meta{display:flex;gap:var(--spacing-md);flex-wrap:wrap;font-size:.8125rem;color:var(--gray-600)}.fb-form-card-body{padding:var(--spacing-lg);flex:1;position:relative;z-index:1}.fb-form-stats{display:flex;gap:var(--spacing-lg);margin-bottom:var(--spacing-md)}.fb-form-stat{display:flex;align-items:center;gap:var(--spacing-xs);font-size:.875rem;color:var(--gray-700);font-weight:500}.fb-form-card-footer{padding:var(--spacing-md) var(--spacing-lg);border-top:1px solid var(--gray-100);justify-content:space-between;align-items:center;position:relative;z-index:1;background:hsla(0,0%,100%,.5)}.fb-form-actions,.fb-form-card-footer{display:flex;gap:var(--spacing-sm)}.fb-badge{display:inline-flex;align-items:center;padding:.25rem var(--spacing-sm);border-radius:var(--radius-sm);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em}.fb-badge-success{background:var(--success-50);color:var(--success-600)}.fb-badge-warning{background:var(--warning-50);color:var(--warning-600)}.fb-badge-error{background:var(--error-50);color:var(--error-600)}.fb-badge-gray{background:var(--gray-100);color:var(--gray-600)}.fb-editor{display:flex;gap:var(--spacing-md);animation:fadeIn .3s ease-in-out}.fb-editor-sidebar{width:280px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-lg);overflow-y:auto;border:1px solid var(--gray-200)}.fb-editor-sidebar-title{font-size:1rem;font-weight:600;color:var(--gray-900);margin-bottom:var(--spacing-md);display:flex;align-items:center;gap:var(--spacing-sm)}.fb-editor-canvas{flex:1;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-2xl);overflow-y:auto;border:1px solid var(--gray-200);position:relative}.fb-editor-canvas.drag-over{background:var(--primary-50);border-color:var(--primary-600);border-style:dashed}.fb-editor-properties{width:320px;background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--spacing-lg);overflow-y:auto;border:1px solid var(--gray-200)}.fb-field-category{margin-bottom:var(--spacing-lg)}.fb-field-category-title{font-size:.75rem;font-weight:600;color:var(--gray-500);text-transform:uppercase;letter-spacing:.05em;margin-bottom:var(--spacing-sm)}.fb-field-item{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);cursor:grab;transition:var(--transition-base);border:1px solid transparent;background:var(--gray-50);margin-bottom:var(--spacing-xs)}.fb-field-item:hover{background:var(--primary-50);border-color:var(--primary-200);transform:translateX(4px)}.fb-field-item:active{cursor:grabbing;transform:scale(.98)}.fb-field-icon{width:20px;height:20px;color:var(--primary-600)}.fb-field-label{font-size:.875rem;font-weight:500;color:var(--gray-700)}.fb-canvas-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:400px;color:var(--gray-400);text-align:center}.fb-canvas-empty-icon{width:80px;height:80px;margin-bottom:var(--spacing-md);opacity:.5}.fb-canvas-empty-text{font-size:1.125rem;font-weight:500;margin-bottom:var(--spacing-sm)}.fb-canvas-empty-subtext{font-size:.875rem}.fb-canvas-form{max-width:800px;margin:0 auto}.fb-canvas-field{margin-bottom:var(--spacing-lg);padding:var(--spacing-md);border:2px dashed transparent;border-radius:var(--radius-md);transition:var(--transition-base);position:relative;background:#fff}.fb-canvas-field:hover{border-color:var(--primary-200);background:var(--primary-50)}.fb-canvas-field.selected{border-color:var(--primary-600);background:var(--primary-50);box-shadow:0 0 0 3px rgba(79,70,229,.1)}.fb-canvas-field.dragging{opacity:.5}.fb-field-controls{position:absolute;top:-12px;right:var(--spacing-md);display:flex;gap:var(--spacing-xs);opacity:0;transition:var(--transition-fast)}.fb-canvas-field:hover .fb-field-controls{opacity:1}.fb-field-control-btn{width:24px;height:24px;border-radius:var(--radius-sm);background:#fff;border:1px solid var(--gray-300);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition-fast);box-shadow:var(--shadow-sm)}.fb-field-control-btn:hover{background:var(--gray-100);border-color:var(--gray-400)}.fb-field-control-btn.delete:hover{background:var(--error-50);border-color:var(--error-600);color:var(--error-600)}.fb-form-group{margin-bottom:var(--form-spacing-fieldGap,var(--spacing-md))}.fb-label{display:block;font-size:var(--form-font-sizeLabel,.875rem);font-weight:500;color:var(--form-color-text,var(--gray-700));margin-bottom:var(--form-spacing-labelGap,var(--spacing-xs));font-family:var(--form-font-family,inherit)}.fb-label-required:after{content:"*";color:var(--error-600);margin-left:.25rem}.fb-input,.fb-select,.fb-textarea{width:100%;padding:var(--form-spacing-paddingInput,var(--spacing-sm) var(--spacing-md));border:1px solid var(--form-color-border,var(--gray-300));border-radius:var(--form-border-radius,var(--radius-md));font-size:var(--form-font-sizeBase,.875rem);font-family:var(--form-font-family,inherit);background-color:var(--form-color-surface,#fff);color:var(--form-color-text,var(--gray-900));transition:var(--transition-base);box-shadow:var(--form-shadow-input,none)}.fb-input:focus,.fb-select:focus,.fb-textarea:focus{outline:none;border-color:var(--form-color-borderFocus,var(--primary-600));box-shadow:var(--form-shadow-inputFocus,0 0 0 3px rgba(79,70,229,.1))}.fb-textarea{min-height:100px;resize:vertical}.fb-help-text{font-size:var(--form-font-sizeHelp,.75rem);color:var(--form-color-textSecondary,var(--gray-500));margin-top:var(--spacing-xs);font-family:var(--form-font-family,inherit)}.fb-error-text{font-size:.75rem;color:var(--error-600);margin-top:var(--spacing-xs)}.fb-toggle{display:inline-flex;align-items:center;gap:var(--spacing-sm);cursor:pointer;-webkit-user-select:none;-moz-user-select:none;user-select:none}.fb-toggle-switch{position:relative;width:44px;height:24px;background:var(--gray-300);border-radius:12px;transition:var(--transition-base)}.fb-toggle input:checked+.fb-toggle-switch{background:var(--primary-600)}.fb-toggle-slider{position:absolute;top:2px;left:2px;width:20px;height:20px;background:#fff;border-radius:50%;transition:var(--transition-base);box-shadow:var(--shadow-sm)}.fb-toggle input:checked+.fb-toggle-switch .fb-toggle-slider{transform:translateX(20px)}.fb-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-in-out}.fb-modal{background:#fff;border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);max-width:600px;width:90%;max-height:90vh;overflow-y:auto;animation:slideUp .3s ease-out}.fb-modal-header{padding:var(--spacing-lg) var(--spacing-xl);border-bottom:1px solid var(--gray-200);display:flex;align-items:center;justify-content:space-between}.fb-modal-title{font-size:1.25rem;font-weight:600;color:var(--gray-900)}.fb-modal-close{width:32px;height:32px;border:none;background:none;cursor:pointer;color:var(--gray-500);transition:var(--transition-base);border-radius:var(--radius-md)}.fb-modal-close:hover{background:var(--gray-100);color:var(--gray-700)}.fb-modal-body{padding:var(--spacing-xl)}.fb-modal-footer{padding:var(--spacing-lg) var(--spacing-xl);border-top:1px solid var(--gray-200);display:flex;gap:var(--spacing-sm);justify-content:flex-end;background:var(--gray-50)}