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var(--transition-fast)}.mode-btn:hover:not(.active){background:var(--bg-input);color:var(--text-primary)}.mode-btn.active{background-color:var(--primary-color);color:#fff;box-shadow:0 2px 8px #2563eb4d}.app-container{flex:1;display:flex;flex-direction:column;background:var(--bg-card);border:1px solid var(--border-light);border-radius:24px;box-shadow:var(--app-shadow);overflow:hidden}.chat-container{flex:1;padding:2rem;overflow-y:auto;display:flex;flex-direction:column;gap:1.2rem;background:var(--bg-card)}.message{max-width:75%;padding:1rem 1.2rem;font-size:1rem;line-height:1.5;animation:slideIn .3s ease-out forwards}@keyframes slideIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.message.user{align-self:flex-end;background:var(--bg-input);color:var(--text-primary);border-radius:20px 20px 4px}.message.ai{align-self:flex-start;background:var(--bg-card);color:var(--text-primary);border:1px solid var(--border-light);border-radius:20px 20px 20px 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table{border-collapse:collapse;width:100%;table-layout:fixed;margin:.6rem 0;font-size:.88rem;display:table}.message.ai thead tr{background:var(--bg-input)}.message.ai th,.message.ai td{border:1px solid var(--border-light);padding:.45rem .7rem;text-align:left;word-wrap:break-word;overflow-wrap:break-word;white-space:normal;vertical-align:top}.message.ai th{font-weight:700;color:var(--text-primary)}.message.ai tbody tr:hover{background:#2563eb0a}.input-section{padding:1.5rem 2rem;border-top:1px solid var(--border-light);background:var(--bg-main);display:flex;flex-direction:column;gap:.8rem}.attachment-container{display:flex;align-items:center;gap:.5rem;background:var(--bg-card);padding:.6rem 1.2rem;border-radius:20px;border:1px dashed var(--border-light);width:fit-content;transition:all 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var(--border-light);font-size:.85rem;color:var(--text-primary)}.file-chip-name{max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-chip-remove{background:none;border:none;color:var(--text-secondary);font-size:1.1rem;cursor:pointer;padding:0 .2rem;display:flex;align-items:center;line-height:1;transition:color var(--transition-fast)}.file-chip-remove:hover{color:#ef4444}.completed-actions-container{display:flex;justify-content:center;gap:1rem;padding:.5rem 0}.action-btn{display:flex;align-items:center;gap:.5rem;padding:.8rem 1.2rem;border-radius:20px;font-family:inherit;font-weight:600;font-size:.95rem;cursor:pointer;transition:all var(--transition-fast);border:none}.new-case-btn{background:var(--bg-input);color:var(--text-primary);border:1px solid 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var(--transition-fast);box-shadow:var(--btn-shadow);display:flex;align-items:center;gap:.5rem}.send-btn:hover:not(:disabled){background:var(--primary-hover);transform:translateY(-1px)}.send-btn:active:not(:disabled){transform:translateY(0)}.send-btn:disabled{background:#cbd5e1;color:#f1f5f9;cursor:not-allowed;box-shadow:none}.graph-section{display:flex;justify-content:center;align-items:center;padding:.4rem 0;margin-bottom:.6rem;width:100%}.graph-wrapper{background:#ffffff0d;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-radius:16px;padding:.8rem 1.5rem;border:1px solid var(--border-light);box-shadow:0 4px 20px #0000000d;width:fit-content;min-width:600px;display:flex;justify-content:center;transition:all .5s ease}.graph-viz{display:flex;align-items:center;gap:1.5rem;animation:fadeIn .5s ease-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.node{padding:.45rem 1rem;border-radius:10px;font-weight:700;font-size:.78rem;color:#fff;box-shadow:0 3px 8px #0000001a;transition:all .3s cubic-bezier(.4,0,.2,1);position:relative;text-transform:uppercase;letter-spacing:.05em;min-width:75px;text-align:center;cursor:default}.node:hover{transform:scale(1.05) translateY(-2px);box-shadow:0 6px 16px #00000026}.input-node{background:linear-gradient(135deg,#3b82f6,#1d4ed8)}.llm-node{background:linear-gradient(135deg,#8b5cf6,#6d28d9)}.output-node{background:linear-gradient(135deg,#10b981,#047857)}.process-node{background:linear-gradient(135deg,#f59e0b,#d97706)}.sub-node{background:linear-gradient(135deg,#6366f1,#4338ca);font-size:.8rem;padding:.6rem 1rem;min-width:80px}.aggregator-node{background:linear-gradient(135deg,#ec4899,#be185d)}.edge{width:50px;height:2px;background:var(--border-light);position:relative;display:flex;align-items:center}.arrow{width:0;height:0;border-top:5px solid transparent;border-bottom:5px solid transparent;border-left:8px solid var(--border-light);position:absolute;right:-4px}.arrow.down{transform:rotate(90deg)}.arrow.up{transform:rotate(-90deg)}.loop-container{display:flex;align-items:center;gap:3rem;position:relative;padding:1.5rem 0}.loop-edges{position:absolute;inset:0;pointer-events:none}.loop-edge{position:absolute;left:50%;transform:translate(-50%);width:80%;height:40px;border:2px solid var(--border-light);border-radius:50%}.node.running{box-shadow:0 0 20px #60a5fae6,inset 0 0 10px #fff6;border-color:#60a5fa;transform:translateY(-2px);animation:pulse-node 1.5s infinite alternate;background:#60a5fa26;color:#fff}@keyframes pulse-node{0%{box-shadow:0 0 10px #3b82f699,inset 0 0 5px #fff3}to{box-shadow:0 0 25px #60a5fa,inset 0 0 15px #ffffff80;border-color:#93c5fd}}.loop-edge.running{border-top-color:#60a5fa;border-bottom-color:#60a5fa;animation:pulse-edge 1.5s infinite alternate}@keyframes pulse-edge{0%{opacity:.6}to{opacity:1;filter:drop-shadow(0 0 5px 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flowBottom{0%{border-color:var(--border-light)}50%{border-color:var(--primary-color)}to{border-color:var(--border-light)}}.flex-col{display:flex;flex-direction:column;gap:1.5rem}.edge-loop{display:flex;flex-direction:column;align-items:center;gap:.8rem}.edge.vertical{width:2px;height:40px}.node-group{display:flex;flex-direction:column;gap:1rem}.edge-branch{display:flex;flex-direction:column;justify-content:center;height:140px;width:40px;position:relative}.branch-line{height:2px;background:var(--border-light);width:30px;position:absolute;left:0}.branch-line.top{top:20%;transform:rotate(35deg);transform-origin:left}.branch-line.mid{top:50%}.branch-line.bottom{bottom:20%;transform:rotate(-35deg);transform-origin:left}.edge-branch.reverse{transform:scaleX(-1)}.modal-overlay{position:fixed;inset:0;background:#00000080;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}.modal-content{background:var(--bg-card);padding:2rem;border-radius:20px;width:90%;max-width:400px;box-shadow:0 20px 25px -5px #0000001a,0 10px 10px -5px #0000000a;border:1px solid var(--border-light);animation:modalScale .3s cubic-bezier(.34,1.56,.64,1)}@keyframes modalScale{0%{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}.modal-title{font-size:1.25rem;font-weight:700;color:var(--text-primary);margin:0 0 1rem}.modal-message{font-size:1rem;color:var(--text-secondary);line-height:1.5;margin:0 0 2rem}.modal-actions{display:flex;gap:1rem;justify-content:flex-end}.modal-btn{padding:.75rem 1.5rem;border-radius:12px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s;border:none}.modal-btn.cancel{background:var(--bg-input);color:var(--text-primary);border:1px solid var(--border-light)}.modal-btn.cancel:hover{background:#e2e8f0}.modal-btn.confirm{background:#ef4444;color:#fff}.modal-btn.confirm:hover{background:#dc2626;transform:translateY(-1px)}.coming-soon-container{display:flex;align-items:center;justify-content:center;flex:1;padding:2rem;background:var(--bg-card)}.coming-soon-card{display:flex;flex-direction:column;align-items:center;gap:1.2rem;background:var(--bg-secondary);border:1px solid var(--border-color);border-radius:20px;padding:3rem;text-align:center;max-width:450px;box-shadow:0 10px 30px #0000000d;animation:fadeIn .5s ease-out}.coming-soon-icon{font-size:3rem;margin-bottom:.5rem}.coming-soon-card h3{margin:0;font-size:1.5rem;color:var(--text-primary);font-weight:800;letter-spacing:-.01em}.coming-soon-card p{margin:0;color:var(--text-secondary);font-size:1rem;line-height:1.6}.attachment-btn.disabled{cursor:not-allowed!important;opacity:.6}