:root{--bg-color:#020617;--panel-bg:#0f172ab3;--border-color:#33415580;--accent-color:#6366f1;--accent-hover:#4f46e5;--text-primary:#f8fafc;--text-secondary:#94a3b8;--error-color:#ef4444;--success-color:#22c55e}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-primary);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;line-height:1.5;overflow-x:hidden}.app-container{max-width:1200px;min-height:100vh;margin:0 auto;padding:3rem 1rem}header{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;margin-bottom:3rem;padding-bottom:1rem;display:flex}.title-group h1{background:linear-gradient(90deg,#818cf8,#c084fc);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;font-size:1.875rem;font-weight:800}.title-group p{color:var(--text-secondary);font-size:.875rem}.notebook-container{flex-direction:column;gap:1.5rem;display:flex}.cell{background:var(--panel-bg);-webkit-backdrop-filter:blur(12px);border:1px solid var(--border-color);border-radius:.75rem;transition:all .2s;overflow:hidden;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -2px #0000001a}.cell:hover{border-color:var(--accent-color);box-shadow:0 0 0 1px var(--accent-color)}.cell-header{color:var(--text-secondary);background:#1e293b80;justify-content:space-between;padding:.5rem 1rem;font-size:.75rem;display:flex}.cell-actions{gap:.75rem;display:flex}.btn-icon{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;align-items:center;transition:color .2s;display:flex}.btn-icon:hover{color:var(--text-primary)}.btn-icon.run:hover{color:var(--success-color)}.btn-icon.delete:hover{color:var(--error-color)}.btn-icon.fix:hover{color:#fbbf24}.editor-wrapper{min-height:120px;padding:.75rem .5rem}.output-wrapper{border-top:1px solid 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input{width:100%;color:var(--text-secondary);background:0 0;border:none;outline:none;font-size:.825rem}.refine-bar input:focus{color:var(--text-primary)}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}:root{--bg-primary:#0f172a;--bg-secondary:#1e293b;--bg-tertiary:#334155;--accent-primary:#818cf8;--accent-secondary:#6366f1;--text-primary:#f8fafc;--text-secondary:#94a3b8;--error:#ef4444;--success:#22c55e}body{background-color:var(--bg-primary);color:var(--text-primary);margin:0;padding:0;font-family:Inter,sans-serif;overflow:hidden}.ide-container{flex-direction:column;height:100vh;display:flex}header{background-color:var(--bg-secondary);border-bottom:1px solid var(--bg-tertiary);justify-content:space-between;align-items:center;padding:.25rem 1.5rem;display:flex}header h1{letter-spacing:-.025em;color:var(--accent-primary);margin:0;font-size:1.25rem;font-weight:700}.main-content{flex:1;display:flex;overflow:hidden}.file-sidebar{background-color:var(--bg-secondary);border-right:1px solid var(--bg-tertiary);flex-direction:column;width:250px;display:flex}.sidebar-header{text-transform:uppercase;color:var(--text-secondary);justify-content:space-between;align-items:center;padding:1rem;font-size:.8rem;font-weight:600;display:flex}.file-list{flex:1;padding:.5rem;overflow-y:auto}.file-item{cursor:pointer;color:var(--text-secondary);border-radius:6px;align-items:center;gap:.5rem;padding:.5rem .75rem;font-size:.9rem;transition:all .2s;display:flex}.file-item:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.file-item.active{background-color:var(--accent-primary);color:#fff}.hover-actions .actions{opacity:0;pointer-events:none;transition:opacity .2s}.hover-actions:hover .actions{opacity:1;pointer-events:auto}.btn-icon-tiny{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:4px;justify-content:center;align-items:center;padding:.2rem;transition:all .2s;display:flex}.btn-icon-tiny:hover{background:var(--bg-tertiary);color:var(--text-primary)}.editor-section{flex-direction:column;flex:1;min-width:0;display:flex}.toolbar{background-color:var(--bg-secondary);border-bottom:1px solid var(--bg-tertiary);align-items:center;gap:1rem;padding:.5rem 1rem;display:flex}.btn{cursor:pointer;border:none;border-radius:6px;align-items:center;gap:.4rem;padding:.4rem .8rem;font-size:.85rem;font-weight:500;transition:all .2s;display:flex}.btn-primary{background-color:var(--accent-primary);color:#fff}.btn-primary:hover{background-color:var(--accent-secondary)}.btn-secondary{background-color:var(--bg-tertiary);color:var(--text-primary)}.btn-secondary:hover{background-color:#475569}.ai-bar{background-color:var(--bg-secondary);border-top:1px 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-10px}.resizer:hover{background:var(--accent-primary)}.resizer:after{content:"";background:#ffffff1a;border-radius:1px;width:2px;height:20px}.error-overlay{background-color:var(--bg-secondary);z-index:20;border-left:1px solid var(--bg-tertiary);flex-direction:column;padding:1.5rem;animation:.3s ease-out slideIn;display:flex;position:absolute;inset:0;overflow-y:auto}@keyframes slideIn{0%{opacity:0;transform:translate(20px)}to{opacity:1;transform:translate(0)}}.error-title{color:#fb7185;align-items:center;margin-bottom:1.25rem;font-size:1.1rem;font-weight:700;display:flex}.error-log{color:#e2e8f0;white-space:pre-wrap;border:1px solid var(--bg-tertiary);background:#0f172a;border-radius:8px;flex:1;padding:1rem;font-family:JetBrains Mono,Fira Code,monospace;font-size:.8rem;line-height:1.5;box-shadow:inset 0 2px 4px #0000000d}.animate-spin{animation:1s linear infinite spin}select{outline:none;transition:all .2s}select:focus,input:focus{box-shadow:0 0 0 2px #818cf833;border-color:var(--accent-primary)!important}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:#475569}