:root{--bg-primary: #f8f9fa;--bg-secondary: #ffffff;--bg-tertiary: #f1f3f5;--bg-glass: rgba(255, 255, 255, .9);--accent-primary: #2196f3;--accent-secondary: #1976d2;--accent-gradient: linear-gradient(135deg, #2196f3 0%, #1976d2 100%);--text-primary: #1a1a1a;--text-secondary: #4a5568;--text-muted: #718096;--border-color: #e2e8f0;--border-hover: #cbd5e0;--success: #10b981;--error: #ef4444;--warning: #f59e0b;--spacing-xs: .5rem;--spacing-sm: .75rem;--spacing-md: 1rem;--spacing-lg: 1.5rem;--spacing-xl: 2rem;--spacing-2xl: 3rem;--radius-sm: .25rem;--radius-md: .375rem;--radius-lg: .5rem;--radius-xl: .75rem;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 2px 4px 0 rgba(0, 0, 0, .08);--shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-xl: 0 10px 15px -3px rgba(0, 0, 0, .1);--shadow-glow: 0 0 0 3px rgba(33, 150, 243, .1);--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .25s cubic-bezier(.4, 0, .2, 1);--transition-slow: .35s cubic-bezier(.4, 0, .2, 1);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;line-height:1.5;font-weight:400;color-scheme:light;color:var(--text-primary);background-color:var(--bg-primary);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{margin:0;padding:0;box-sizing:border-box}body{margin:0;min-height:100vh;background:var(--bg-primary)}#root{min-height:100vh}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:var(--bg-tertiary);border-radius:var(--radius-sm)}::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:var(--radius-sm);border:2px solid var(--bg-tertiary)}::-webkit-scrollbar-thumb:hover{background:var(--accent-primary)}h1,h2,h3,h4,h5,h6{color:var(--text-primary);font-weight:600;line-height:1.2}h1{font-size:2.5rem;color:var(--text-primary)}h2{font-size:2rem}h3{font-size:1.5rem}button{font-family:inherit;cursor:pointer;border:none;outline:none;transition:all var(--transition-base);-webkit-tap-highlight-color:transparent}.btn{padding:.6rem 1.2rem;border-radius:var(--radius-md);font-weight:600;font-size:.9rem;letter-spacing:.01em;display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs);transition:all .2s cubic-bezier(.4,0,.2,1);position:relative;overflow:hidden;-webkit-user-select:none;user-select:none}.btn-primary{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;box-shadow:0 4px 6px -1px #2563eb33,0 2px 4px -1px #2563eb1a;border:1px solid rgba(255,255,255,.1)}.btn-primary:hover:not(:disabled){background:linear-gradient(135deg,#2563eb,#1d4ed8);box-shadow:0 10px 15px -3px #2563eb4d,0 4px 6px -2px #2563eb1a;transform:translateY(-1px)}.btn-primary:active:not(:disabled){transform:translateY(0);box-shadow:0 2px 4px -1px #2563eb33}.btn-secondary{background:#fff;color:var(--text-secondary);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}.btn-secondary:hover:not(:disabled){background:var(--bg-primary);color:var(--text-primary);border-color:var(--text-muted);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary:active:not(:disabled){transform:translateY(0);background:var(--bg-tertiary)}.btn-danger,.btn-delete{background:#fff;color:var(--error);border:1px solid rgba(239,68,68,.3);box-shadow:var(--shadow-sm)}.btn-danger:hover:not(:disabled),.btn-delete:hover:not(:disabled){background:#fef2f2;border-color:var(--error);box-shadow:0 4px 6px -1px #ef44441a;transform:translateY(-1px)}.btn-sm{padding:.4rem .8rem;font-size:.8rem;border-radius:var(--radius-sm)}.btn:disabled{opacity:.6;cursor:not-allowed;filter:grayscale(.5);transform:none!important;box-shadow:none!important}.btn:after{content:"";position:absolute;top:50%;left:50%;width:100%;height:100%;background:radial-gradient(circle,rgba(255,255,255,.3) 0%,transparent 60%);transform:translate(-50%,-50%) scale(0);opacity:0;transition:transform .4s,opacity .4s}.btn:active:after{transform:translate(-50%,-50%) scale(2);opacity:1;transition:0s}input,textarea,select{font-family:inherit;font-size:.875rem;padding:var(--spacing-sm) var(--spacing-md);border-radius:var(--radius-md);border:1px solid var(--border-color);background:var(--bg-tertiary);color:var(--text-primary);transition:all var(--transition-base);outline:none}input:focus,textarea:focus,select:focus{border-color:var(--accent-primary);box-shadow:var(--shadow-glow)}input::placeholder,textarea::placeholder{color:var(--text-muted)}.card{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);transition:all var(--transition-base);box-shadow:var(--shadow-sm)}.card:hover{border-color:var(--border-hover);box-shadow:var(--shadow-md)}.glass{background:var(--bg-glass);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border-color);box-shadow:var(--shadow-sm)}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}@keyframes slideIn{0%{transform:translate(-100%);opacity:0}to{transform:translate(0);opacity:1}}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.fade-in{animation:fadeIn var(--transition-base) ease-out}.slide-in{animation:slideIn var(--transition-base) ease-out}.spinner{width:20px;height:20px;border:2px solid var(--border-color);border-top-color:var(--accent-primary);border-radius:50%;animation:spin .6s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}.gap-sm{gap:var(--spacing-sm)}.gap-md{gap:var(--spacing-md)}.gap-lg{gap:var(--spacing-lg)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.mt-auto{margin-top:auto}.app{min-height:100vh;padding:var(--spacing-xl)}.app-header{margin-bottom:var(--spacing-2xl);animation:fadeIn .6s ease-out}.app-header h1{margin-bottom:var(--spacing-sm)}.app-header p{color:var(--text-secondary);font-size:1rem}.app-container{display:grid;grid-template-columns:300px 1fr;gap:var(--spacing-xl);max-width:1800px;margin:0 auto;animation:fadeIn .8s ease-out}.sidebar{display:flex;flex-direction:column;gap:var(--spacing-lg)}.skills-list-container{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);height:fit-content;max-height:calc(100vh - 200px);overflow-y:auto;box-shadow:var(--shadow-sm)}.skills-list-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-md)}.skills-list-header h2{font-size:1.25rem;color:var(--text-primary)}.skill-item{padding:var(--spacing-md);border-radius:var(--radius-md);background:var(--bg-tertiary);border:1px solid var(--border-color);margin-bottom:var(--spacing-sm);cursor:pointer;transition:all var(--transition-base);position:relative;overflow:hidden}.skill-item:before{content:"";position:absolute;left:0;top:0;height:100%;width:3px;background:var(--accent-gradient);transform:scaleY(0);transition:transform var(--transition-base)}.skill-item:hover:before,.skill-item.active:before{transform:scaleY(1)}.skill-item:hover{background:var(--bg-secondary);border-color:var(--accent-primary);transform:translate(5px);box-shadow:var(--shadow-sm)}.skill-item.active{background:#2196f314;border-color:var(--accent-primary)}.skill-item-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-xs)}.skill-name{font-weight:500;color:var(--text-primary);font-size:.875rem}.skill-type{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;background:var(--bg-tertiary);padding:2px 8px;border-radius:var(--radius-sm)}.skill-modified{font-size:.75rem;color:var(--warning);display:flex;align-items:center;gap:4px}.skill-modified:before{content:"●";animation:pulse 2s ease-in-out infinite}.empty-state{text-align:center;padding:var(--spacing-xl);color:var(--text-muted)}.empty-state-icon{font-size:3rem;margin-bottom:var(--spacing-md);opacity:.3}.editor-section{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-lg);display:flex;flex-direction:column;min-height:calc(100vh - 200px);box-shadow:var(--shadow-sm)}.editor-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--spacing-lg);padding-bottom:var(--spacing-md);border-bottom:1px solid var(--border-color)}.editor-title{display:flex;align-items:center;gap:var(--spacing-md)}.editor-title h2{font-size:1.25rem;color:var(--text-primary)}.editor-actions{display:flex;gap:var(--spacing-sm)}.editor-wrapper{flex:1;border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--border-color);background:#fff}.editor-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;min-height:400px;color:var(--text-muted);text-align:center}.editor-placeholder-icon{font-size:4rem;margin-bottom:var(--spacing-lg);opacity:.2}.editor-placeholder h3{color:var(--text-secondary);margin-bottom:var(--spacing-sm)}.modal-overlay{position:fixed;inset:0;background:#000000b3;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn var(--transition-base)}.modal{background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-xl);padding:var(--spacing-xl);width:90%;max-width:500px;box-shadow:var(--shadow-xl);animation:fadeIn var(--transition-base)}.modal-header{margin-bottom:var(--spacing-lg)}.modal-header h2{font-size:1.5rem;margin-bottom:var(--spacing-xs)}.modal-header p{color:var(--text-secondary);font-size:.875rem}.form-group{margin-bottom:var(--spacing-lg)}.form-group label{display:block;margin-bottom:var(--spacing-xs);color:var(--text-secondary);font-size:.875rem;font-weight:500}.form-group input,.form-group select{width:100%}.form-actions{display:flex;gap:var(--spacing-sm);justify-content:flex-end;margin-top:var(--spacing-xl)}.toast{position:fixed;bottom:var(--spacing-xl);right:var(--spacing-xl);background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:var(--spacing-md) var(--spacing-lg);box-shadow:var(--shadow-xl);display:flex;align-items:center;gap:var(--spacing-md);animation:slideIn var(--transition-base);z-index:2000;max-width:400px}.toast.success{border-left:4px solid var(--success)}.toast.error{border-left:4px solid var(--error)}.toast.warning{border-left:4px solid var(--warning)}.toast-icon{font-size:1.5rem}.toast-content{flex:1}.toast-title{font-weight:500;margin-bottom:2px;color:var(--text-primary)}.toast-message{font-size:.875rem;color:var(--text-secondary)}.tabs-container{display:flex;gap:var(--spacing-sm);margin-top:var(--spacing-lg);border-bottom:1px solid var(--border-color)}.tab-btn{padding:var(--spacing-sm) var(--spacing-lg);background:transparent;border:none;border-bottom:2px solid transparent;color:var(--text-secondary);font-weight:500;cursor:pointer;transition:all var(--transition-base)}.tab-btn:hover{color:var(--text-primary);background:var(--bg-tertiary)}.tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}.dataset-content{padding:var(--spacing-lg);height:100%;overflow-y:auto}.edit-form{max-width:800px;margin:0 auto}.form-section{background:var(--bg-tertiary);padding:var(--spacing-md);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg)}.form-section h3{font-size:1rem;margin-bottom:var(--spacing-md);color:var(--text-primary)}.step-row input{background:var(--bg-secondary)}.metric-card{min-width:150px;text-align:center}.btn-sm{padding:4px 8px;font-size:.75rem}.skill-form-editor{padding:var(--spacing-lg);overflow-y:auto;height:100%;max-width:900px;margin:0 auto}.skill-form-editor .form-section{background:var(--bg-tertiary);padding:var(--spacing-lg);border-radius:var(--radius-md);margin-bottom:var(--spacing-lg)}.skill-form-editor .form-section h3{font-size:1.1rem;margin-bottom:var(--spacing-md);color:var(--accent-primary);font-weight:600}.key-value-row{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);align-items:flex-start}.key-value-row input,.key-value-row textarea{background:var(--bg-secondary)}.array-item-row{display:flex;gap:var(--spacing-sm);margin-bottom:var(--spacing-sm);align-items:flex-start}.array-item-row textarea{flex:1;font-family:Courier New,monospace;font-size:.875rem;background:var(--bg-secondary)}.view-toggle .btn-sm{padding:6px 12px;font-size:.8rem}@media(max-width:1024px){.app-container{grid-template-columns:1fr}.sidebar{order:2}.editor-section{order:1}}@media(max-width:640px){.app{padding:var(--spacing-md)}.app-header h1{font-size:2rem}.modal{width:95%;padding:var(--spacing-lg)}.view-toggle{flex-direction:column}}