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var(--border);border-radius:var(--radius);overflow:hidden}.chat-messages{flex:1;overflow-y:auto;padding:20px 24px;display:flex;flex-direction:column;gap:16px}.chat-state{color:var(--text-secondary);font-size:13.5px;text-align:center;padding:32px 0}.chat-empty{display:flex;align-items:center;justify-content:center;flex:1;padding:40px 24px;text-align:center;color:var(--text-secondary);font-size:14px;line-height:1.6}.chat-msg{display:flex;flex-direction:column;max-width:80%}.chat-msg-user{align-self:flex-end;align-items:flex-end}.chat-msg-assistant{align-self:flex-start;align-items:flex-start}.chat-bubble{padding:10px 14px;border-radius:12px;font-size:14px;line-height:1.55;white-space:pre-wrap;word-break:break-word}.chat-msg-user .chat-bubble{background:var(--accent);color:#020c1a;border-bottom-right-radius:4px}.chat-msg-assistant .chat-bubble{background:var(--card-bg-2);color:var(--text-primary);border:1px solid var(--border);border-bottom-left-radius:4px}.chat-bubble-typing{color:var(--text-secondary);font-style:italic}.chat-sources{margin-top:8px;display:flex;flex-direction:column;gap:6px;max-width:480px}.chat-sources-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:var(--text-secondary);margin-bottom:2px}.chat-source-card{background:var(--card-bg-2);border:1px solid rgba(56,189,248,.14);border-radius:6px;padding:8px 12px}.chat-source-header{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin-bottom:4px}.chat-source-title{font-size:13px;font-weight:600;color:var(--accent)}.chat-source-snippet{font-size:12px;color:var(--text-secondary);margin-bottom:4px;line-height:1.4}.chat-source-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.chat-input-area{padding:12px 16px;border-top:1px solid var(--border);background:var(--card-bg)}.chat-input-row{display:flex;gap:10px;align-items:flex-end}.chat-input{flex:1;resize:none;border:1px solid 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var(--border);border-radius:6px;background:var(--card-bg);color:var(--text-secondary);font-size:13.5px;cursor:pointer;font-family:var(--font);transition:background .15s,color .15s}.know-view-tab:hover{background:var(--card-bg-2);color:var(--text-primary)}.know-view-tab.active{background:var(--accent);color:#020c1a;border-color:var(--accent)}.proposals-view{margin-top:4px}.proposals-list{display:flex;flex-direction:column;gap:12px}.proposal-card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:14px 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14px;max-width:480px}.chat-clarify-label{font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.07em;color:#d97706;margin-bottom:6px}.chat-clarify-list{margin:0 0 10px 18px;padding:0}.chat-clarify-list li{font-size:13.5px;color:var(--text-primary);line-height:1.5;margin-bottom:4px}.chat-clarify-reply{display:flex;gap:8px;align-items:flex-end}.chat-clarify-input{flex:1;resize:none;border:1px solid rgba(251,191,36,.22);border-radius:6px;padding:7px 10px;font-family:var(--font);font-size:13.5px;color:var(--text-primary);background:var(--card-bg-2);line-height:1.45;outline:none;transition:border-color .12s,box-shadow .12s}.chat-clarify-input:focus{border-color:#fbbf2466;box-shadow:0 0 0 2px #fbbf2414}.chat-clarify-input:disabled{background:var(--card-bg);color:var(--text-secondary)}.chat-clarify-btn{white-space:nowrap;font-size:13px;padding:7px 14px;align-self:flex-end}@media (max-width: 600px){.chat-clarify-reply{flex-direction:column;align-items:stretch}.chat-clarify-btn{width:100%;justify-content:center}}