#chat-screen{align-items:stretch}.chat-layout{display:grid;grid-template-columns:220px 1fr;grid-template-rows:40px 1fr 52px;width:100%;height:100%}.topbar{grid-column:1 / -1;display:flex;align-items:center;padding:0 16px;border-bottom:1px solid var(--border);gap:16px}.topbar-logo{color:var(--green);font-weight:700;font-size:14px;letter-spacing:-0.5px}.topbar-sep{color:var(--border)}.topbar-user{color:var(--text-dim);font-size:12px}.topbar-status{margin-left:auto;display:flex;align-items:center;gap:6px;font-size:11px;color:var(--text-dim)}.status-dot{width:6px;height:6px;border-radius:50%;background:var(--green);animation:pulse 2s infinite}.btn-logout{background:none;border:1px solid var(--border);color:var(--text-dim);font-family:var(--mono);font-size:11px;padding:4px 10px;cursor:pointer;transition:border-color .15s,color .15s}.btn-logout:hover{border-color:var(--red);color:var(--red)}.sidebar{border-right:1px solid var(--border);overflow-y:auto;display:flex;flex-direction:column}.sidebar-label{padding:10px 14px 6px;font-size:10px;color:var(--text-dim);letter-spacing:.1em;text-transform:uppercase;border-bottom:1px solid var(--border)}.peer-item{display:flex;align-items:center;gap:10px;padding:10px 14px;cursor:pointer;transition:background .1s;border-bottom:1px solid transparent}.peer-item:hover{background:var(--bg3)}.peer-item.active{background:var(--bg3);border-left:2px solid var(--green);padding-left:12px}.peer-dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex-shrink:0}.peer-dot.offline{background:var(--red)}.peer-name{font-size:12px;color:var(--text)}.peer-empty{padding:16px 14px;font-size:11px;color:var(--text-dim)}.messages{overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:2px;background:var(--bg)}.msg-day{text-align:center;font-size:10px;color:var(--text-dim);margin:12px 0 6px;letter-spacing:.08em}.msg{display:grid;grid-template-columns:80px 1fr;gap:8px;padding:2px 0;animation:fadeIn .15s ease both}.msg.mine .msg-author{color:var(--green-dim);text-align:right}.msg-author{font-size:11px;color:var(--text-dim);padding-top:1px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.msg-body{font-size:13px;color:var(--text);line-height:1.5;word-break:break-word}.msg.mine .msg-body{color:#e8e8e8}.msg-encrypted{font-size:11px;color:var(--text-dim);font-style:italic}.no-chat{flex:1;display:flex;align-items:center;justify-content:center;color:var(--text-dim);font-size:12px;letter-spacing:.05em}.input-bar{grid-column:2;display:flex;border-top:1px solid var(--border);border-left:1px solid var(--border);background:var(--bg2)}.input-bar input{flex:1;background:none;border:none;color:var(--text);font-family:var(--mono);font-size:13px;padding:0 16px;outline:none}.input-bar input::placeholder{color:var(--text-dim)}.input-bar input:disabled{opacity:.4}.send-btn{width:52px;background:none;border:none;border-left:1px solid var(--border);color:var(--green-dim);font-family:var(--mono);font-size:18px;cursor:pointer;transition:color .15s,background .15s}.send-btn:hover{color:var(--green);background:var(--bg3)}.send-btn:disabled{opacity:.3;cursor:not-allowed}