:root{--bg:#f4f6f4;--panel:#fff;--line:#d9e1dc;--text:#12211d;--muted:#65736f;--primary:#0e7c66;--dark:#075848;--danger:#b42318;--bubble:#e8f5f1;--own:#d3f2df}*{box-sizing:border-box}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}button,input,textarea,select{font:inherit}button{border:0;border-radius:6px;background:var(--primary);color:#fff;cursor:pointer;min-height:40px;padding:0 14px}button:hover{background:var(--dark)}button.light{background:#eef2ef;color:var(--text)}input,textarea,select{width:100%;border:1px solid var(--line);border-radius:6px;padding:10px 12px;background:#fff;color:var(--text)}textarea{resize:none}.hidden{display:none!important}.login{min-height:100vh;display:grid;place-items:center;padding:24px}.login-panel{width:min(420px,100%);display:grid;gap:16px;background:var(--panel);border:1px solid var(--line);border-radius:8px;padding:28px;box-shadow:0 20px 50px rgba(18,33,29,.08)}.login-panel h1{margin:4px 0 8px;font-size:34px}.eyebrow{margin:0;color:var(--primary);font-weight:700;text-transform:uppercase;font-size:12px}.muted,.hint{color:var(--muted);margin:0}.error{color:var(--danger);min-height:20px;margin:0}.shell{height:100vh;display:grid;grid-template-columns:360px 1fr}.sidebar{display:flex;flex-direction:column;min-width:0;background:var(--panel);border-right:1px solid var(--line)}.brand,.chat-header{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border-bottom:1px solid var(--line)}.brand span,.chat-header p{display:block;color:var(--muted);font-size:13px;margin:4px 0 0}.warning{margin:12px;padding:10px;border-radius:6px;background:#fff3cd;color:#664d03;font-size:13px}.actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:12px}.search{width:calc(100% - 24px);margin:0 12px 12px}.conversation-list{overflow:auto;min-height:0}.conversation{width:100%;display:grid;gap:4px;padding:14px 16px;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--text);text-align:left;border-radius:0}.conversation:hover,.conversation.active{background:#eef7f4}.conversation strong,.conversation span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation span{color:var(--muted);font-size:13px}.chat{min-width:0;display:grid;grid-template-rows:auto 1fr auto auto;background:#eef2ef}.chat-header{background:var(--panel);justify-content:flex-start}.chat-header h2{margin:0;font-size:19px}.messages{overflow:auto;padding:18px;display:flex;flex-direction:column;gap:10px}.message{max-width:min(680px,82%);background:var(--bubble);border:1px solid #d3e6df;border-radius:8px;padding:9px 11px;align-self:flex-start}.message.own{background:var(--own);align-self:flex-end}.message-head{display:flex;gap:8px;color:var(--muted);font-size:12px;margin-bottom:4px}.message p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}.attachment{display:block;margin-top:8px;color:var(--dark)}.composer{display:grid;grid-template-columns:44px 1fr 86px;gap:8px;padding:12px;background:var(--panel);border-top:1px solid var(--line)}.composer textarea{min-height:44px;max-height:120px}.attachment-preview{display:flex;flex-wrap:wrap;gap:8px;padding:0 12px 12px;background:var(--panel)}.chip{border:1px solid var(--line);background:#f8faf9;color:var(--text);border-radius:6px;padding:6px 8px;font-size:13px}dialog{border:0;border-radius:8px;padding:0;width:min(520px,calc(100vw - 32px))}dialog::backdrop{background:rgba(0,0,0,.35)}.modal,#modalBody{display:grid;gap:14px}.modal{padding:22px}.modal h3{margin:0}.check-list{max-height:260px;overflow:auto;border:1px solid var(--line);border-radius:6px}.check-row{display:flex;gap:10px;align-items:center;padding:10px;border-bottom:1px solid var(--line)}.check-row:last-child{border-bottom:0}.check-row input{width:auto}.modal-actions{display:flex;justify-content:flex-end;gap:8px}.mobile-only{display:none}@media(max-width:760px){.shell{grid-template-columns:1fr}.chat{display:none}.shell.chat-open .sidebar{display:none}.shell.chat-open .chat{display:grid;height:100vh}.mobile-only{display:inline-block}.message{max-width:92%}}

button.danger{background:#b42318;color:#fff}.call-actions{margin-left:auto;display:flex;gap:8px}.call-actions button:disabled{opacity:.45;cursor:not-allowed}.composer{grid-template-columns:44px 44px 1fr 86px}.emoji-panel{position:fixed;right:116px;bottom:76px;z-index:20;display:grid;grid-template-columns:repeat(6,38px);gap:4px;padding:8px;background:var(--panel);border:1px solid var(--line);border-radius:8px;box-shadow:0 12px 32px rgba(18,33,29,.14)}.emoji-panel button{min-height:34px;padding:0;background:#f8faf9;color:var(--text);font-size:20px}.image-link{display:block;margin-top:8px}.chat-image{display:block;max-width:min(340px,100%);max-height:320px;border-radius:6px;border:1px solid rgba(18,33,29,.12);object-fit:contain;background:#fff}.call-panel{position:fixed;inset:0;z-index:50;background:#111b18;color:#fff;display:grid;grid-template-rows:auto 1fr auto;gap:12px;padding:14px}.call-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px}.call-topbar span{display:block;color:#b8c7c1;font-size:13px;margin-top:3px}.remote-media{min-height:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:12px;align-items:center}.remote-box{min-height:180px;border:1px solid rgba(255,255,255,.16);border-radius:8px;background:#1c2925;display:grid;place-items:center;position:relative;overflow:hidden}.remote-box video,.remote-box audio{width:100%;height:100%;object-fit:cover}.remote-box span{position:absolute;left:10px;bottom:10px;background:rgba(0,0,0,.55);padding:5px 8px;border-radius:6px;font-size:13px}.local-video{position:absolute;right:18px;bottom:78px;width:min(220px,34vw);aspect-ratio:4/3;border-radius:8px;border:2px solid rgba(255,255,255,.6);background:#000;object-fit:cover}.call-controls{display:flex;justify-content:center;gap:8px}.call-controls button,.call-topbar button{min-width:96px}.call-empty{color:#b8c7c1;text-align:center}.attachment-preview .chip{max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}@media(max-width:760px){.call-actions{gap:6px}.call-actions button{padding:0 10px}.emoji-panel{left:12px;right:12px;bottom:70px;grid-template-columns:repeat(8,1fr)}.local-video{width:36vw;right:12px;bottom:74px}.remote-media{grid-template-columns:1fr}.composer{grid-template-columns:40px 40px 1fr 72px}}