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(width<=1180px){.brain-workspace{grid-template-columns:1fr;min-height:auto}.brain-chat-panel,.brain-side-panel,.brain-side-panel>.card{min-height:auto}.brain-side-panel{position:static}.brain-graph-card.compact .brain-graph-stage{height:560px}}@media (width<=820px){.brain-page{padding:16px}.brain-chat-header,.composer-footer{flex-direction:column;align-items:stretch}.brain-header-badges,.composer-actions{justify-content:flex-start}.starter-section-grid{grid-template-columns:1fr}.message-bubble{max-width:100%}.chat-message.user{align-items:flex-end}}
