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span:nth-child(3){animation-delay:.4s}@keyframes bounce{0%,60%,to{transform:translateY(0)}30%{transform:translateY(-5px)}}.chat-input{padding:12px 16px;border-top:1px solid var(--border);background:var(--surface)}.bottom-sheet{position:absolute;bottom:56px;left:0;right:0;z-index:8;background:var(--surface);border-top:1px solid var(--border);border-radius:16px 16px 0 0;max-height:45vh;display:flex;flex-direction:column;transition:max-height .25s ease}.bottom-sheet.expanded{max-height:75vh}.sheet-handle{display:flex;justify-content:center;padding:8px;cursor:pointer}.handle-bar{width:40px;height:4px;background:var(--border);border-radius:2px}.sheet-tabs{display:flex;gap:0;padding:0 12px;border-bottom:1px solid var(--border);align-items:center}.sheet-tab{flex:1;background:none;border:none;color:var(--muted);padding:8px 12px;font-size:13px;font-weight:500;cursor:pointer;border-bottom:2px solid transparent;transition:all .15s}.sheet-tab.active{color:var(--text);border-bottom-color:var(--primary)}.sheet-tab:disabled{opacity:.3;cursor:not-allowed}.tab-badge{background:var(--primary);color:#fff;font-size:10px;padding:1px 6px;border-radius:8px;margin-left:4px}.sheet-close{background:none;border:none;color:var(--muted);font-size:16px;cursor:pointer;padding:8px}.sheet-content{flex:1;overflow-y:auto;padding:12px}.sheet-messages{display:flex;flex-direction:column;gap:10px}.sheet-empty{text-align:center;color:var(--muted);font-size:13px;padding:20px}.sheet-msg{display:flex;gap:8px}.sheet-msg.user{flex-direction:row-reverse}.sheet-msg-avatar{width:24px;height:24px;border-radius:50%;background:var(--primary);display:flex;align-items:center;justify-content:center;font-size:10px;flex-shrink:0}.sheet-msg.user .sheet-msg-avatar{background:var(--accent)}.sheet-msg-body{background:var(--bg);padding:8px 12px;border-radius:12px;font-size:12px;line-height:1.5;max-width:80%}.sheet-msg.user .sheet-msg-body{background:var(--primary-dim)}.sheet-msg-body p{margin-bottom:4px}.sheet-msg-body p:last-child{margin-bottom:0}.sheet-details{display:flex;flex-direction:column;gap:12px}.detail-header h3{font-size:16px;margin-top:6px}.detail-type-badge{display:inline-block;color:#fff;font-size:11px;padding:3px 10px;border-radius:10px;font-weight:500}.detail-summary{font-size:13px;color:var(--text-dim);margin-top:4px}.detail-connections h4{font-size:13px;color:var(--muted);text-transform:uppercase;letter-spacing:.04em;margin-bottom:6px}.detail-conn{background:var(--bg);padding:8px 12px;border-radius:8px;margin-bottom:6px}.conn-rel{font-size:13px;font-weight:500;color:var(--text)}.conn-note{display:block;font-size:11px;color:var(--text-dim);margin-top:2px}.detail-tags{display:flex;flex-wrap:wrap;gap:6px}.detail-tag{background:var(--bg);color:var(--accent);font-size:11px;padding:3px 10px;border-radius:10px}.node-popover{position:absolute;top:60px;right:16px;z-index:6;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px;width:280px;max-height:400px;overflow-y:auto;box-shadow:0 8px 24px #0000004d}.popover-close{position:absolute;top:8px;right:8px;background:none;border:none;color:var(--muted);font-size:14px;cursor:pointer}.popover-close:hover{color:var(--text)}@media(max-width:768px){.chat-panel,.chat-panel-toggle,.floating-input{display:none!important}}@media(min-width:769px){.mobile-input-bar,.bottom-sheet{display:none!important}}