/* Social 2.0 — chat composer tools + focus mode */
.chat-compose-row-v2{display:flex;align-items:flex-end;gap:7px;min-width:0}
.chat-compose-row-v2>.chat-tool-btn-v2,.chat-compose-row-v2>.chat-emoji-wrap-v2{flex:0 0 40px}
.chat-compose-row-v2>.chat-emoji-wrap-v2 .chat-tool-btn-v2{width:40px}
.chat-compose-row-v2>.chat-input-wrap-v2{flex:1 1 220px;min-width:120px}
.chat-compose-row-v2>.chat-send-v2{flex:0 0 auto}
.chat-form-v2 textarea{display:block;overflow-y:auto}
.chat-image-preview-v2{margin-left:0}
.chat-view-v2{transition:grid-template-columns .2s ease,gap .2s ease}
.chat-sidebar-v2{min-width:0;transition:opacity .18s ease,transform .18s ease,border-color .18s ease}
.chat-sidebar-head-v2{position:relative}
.chat-head-v2{justify-content:flex-start;gap:10px}
.chat-head-v2>span:last-child{display:none}
.chat-sidebar-collapse-v2{width:36px;height:36px;padding:0;border:1px solid var(--line);border-radius:11px;display:grid;place-items:center;background:linear-gradient(145deg,#f8faff,#eef3ff);color:#3f57a8;font-size:22px;font-weight:800;box-shadow:0 6px 18px rgba(36,64,140,.08);cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,border-color .15s ease}
.chat-sidebar-collapse-v2:hover{transform:translateY(-1px);border-color:#b9c8f7;box-shadow:0 9px 22px rgba(36,64,140,.13)}
.chat-sidebar-collapse-v2{position:absolute;right:10px;top:11px;width:30px;height:30px;border-radius:10px;font-size:22px}
@media(min-width:821px){
  .chat-view-v2.chat-sidebar-collapsed-v2{grid-template-columns:64px minmax(0,1fr);gap:10px}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2{padding:10px 6px;display:flex;justify-content:center;border-bottom-color:transparent}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2>strong,.chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2>p{display:none}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-collapse-v2{position:static}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-rooms-v2{padding:5px}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2{min-height:54px;padding:6px;grid-template-columns:1fr;justify-items:center;text-align:center;gap:0}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2>span:nth-child(2){display:none}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2>b{position:absolute;right:2px;top:2px;min-width:17px;height:17px;padding:0 4px;font-size:8px}
}
@media(max-width:820px){
  .chat-compose-row-v2{gap:5px}
  .chat-compose-row-v2>.chat-tool-btn-v2,.chat-compose-row-v2>.chat-emoji-wrap-v2{flex-basis:36px}
  .chat-compose-row-v2>.chat-emoji-wrap-v2 .chat-tool-btn-v2{width:36px}
  .chat-image-preview-v2{margin-left:0}
  .chat-view-v2.chat-sidebar-collapsed-v2{grid-template-columns:50px minmax(0,1fr);gap:6px}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2{padding:8px 5px;display:flex;justify-content:center;border-bottom-color:transparent}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2>strong,.chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-head-v2>p{display:none}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-sidebar-collapse-v2{position:static}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-rooms-v2{padding:4px}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2{min-height:48px;padding:4px;grid-template-columns:1fr;justify-items:center;gap:0}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2>span:nth-child(2){display:none}
  .chat-view-v2.chat-sidebar-collapsed-v2 .chat-room-v2>b{right:0;top:0;min-width:16px;height:16px;padding:0 3px;font-size:8px}
  .chat-sidebar-collapse-v2{right:6px;top:8px;width:26px;height:26px;font-size:20px}
}
@media(max-width:620px){
  .chat-compose-row-v2{flex-wrap:wrap;align-items:center;row-gap:6px}
  .chat-compose-row-v2>.chat-input-wrap-v2{order:20;flex:1 1 calc(100% - 56px);min-width:0}
  .chat-compose-row-v2>.chat-send-v2{order:21;height:40px;align-self:stretch}
  .chat-compose-row-v2>.chat-tool-btn-v2,.chat-compose-row-v2>.chat-emoji-wrap-v2{order:10}
  .chat-form-v2 textarea{min-height:40px;max-height:108px}
}
@media(prefers-reduced-motion:reduce){.chat-view-v2,.chat-sidebar-v2,.chat-sidebar-collapse-v2{transition:none}}