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minmax(0,1fr)}.profile-panel{display:none}}@media(max-width:780px){body{background-size:24px 24px,24px 24px,auto,auto,auto}.app-shell{display:flex;min-height:100vh;height:auto;flex-direction:column;padding:10px}.friend-rail{max-height:44vh}.chat-stage{min-height:640px}.moments-stage{min-height:620px}.chat-topbar{display:grid}.topbar-actions{justify-content:flex-start}.conversation{padding:16px}.moments-feed{padding:14px 12px 20px}.moment-card{grid-template-columns:40px minmax(0,1fr);gap:9px}.moment-avatar,.moment-avatar img{width:40px;height:40px}.moment-author-row{display:grid;gap:2px}.moment-author-row time{font-size:11px}.moment-images{width:100%}.message,.message.user{grid-template-columns:34px minmax(0,1fr)}.message.user .bubble-wrap{grid-column:2}.message.user>img{grid-column:1;grid-row:1}.composer{grid-template-columns:1fr}.send-button{min-height:44px}}