:root{--chat-font: Inter, system-ui, -apple-system, Segoe UI, Roboto, sans-serif;--chat-bg: #f7f7fb;--chat-panel: #ffffff;--chat-border: #e6e6ef;--chat-muted: #6b7280;--chat-primary: #3c3b94;--chat-accent: #e32c79;--bubble-me-bg: #3c3b94;--bubble-me-fg: #ffffff;--bubble-peer-bg: #ffffff;--bubble-peer-fg: #111827;--bubble-shadow: 0 1px 2px rgba(0,0,0,.05);--radius-xl: 16px;--radius-2xl: 20px;--chip-bg: #ffffff;--chip-border: #d1d5db;--input-bg: #ffffff;--input-border: #d1d5db;--scrollbar-thumb: #d8d8e5}@media (prefers-color-scheme: dark){:root{--chat-bg: #0f1115;--chat-panel: #171923;--chat-border: #26293a;--chat-muted: #a3a3b2;--bubble-peer-bg: #1e2130;--bubble-peer-fg: #e5e7eb;--chip-bg: #1e2130;--chip-border: #2b2f45;--input-bg: #1e2130;--input-border: #2b2f45;--scrollbar-thumb: #2d3149}}.chat-shell{font-family:var(--chat-font);background:var(--chat-bg);min-height:100dvh;padding:24px;display:grid;place-items:start center;position:relative}.chat-card{width:min(860px,100%);background:var(--chat-panel);border:1px solid var(--chat-border);border-radius:var(--radius-2xl);box-shadow:0 10px 30px #0000000d;display:grid;grid-template-rows:auto auto 1fr auto}.chat-header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--chat-border)}.chat-header-right{margin-left:auto;display:flex;align-items:center;gap:8px}.chat-online{border:none;background:transparent;padding:2px 0;margin:0;font-size:12px;color:var(--chat-muted);cursor:pointer}.chat-online:hover{text-decoration:underline}.chat-chip{margin-left:0;font-size:12px;padding:2px 10px;border-radius:999px;border:1px solid var(--chip-border);background:var(--chip-bg);color:var(--chat-muted)}.chat-chip--ok{border-color:#bbf7d0;background:#dcfce7;color:#166534}.chat-chip--warn{border-color:#fef3c7;background:#fffbeb;color:#92400e}.chat-chip--off{border-color:#e5e7eb;background:#f9fafb;color:#6b7280}.chat-title{font-weight:700;font-size:18px}.chat-roster-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#0f172a59;display:flex;align-items:flex-start;justify-content:center;padding:80px 16px 24px;z-index:50}.chat-roster{width:min(420px,100%);background:var(--chat-panel);border-radius:16px;box-shadow:0 18px 40px #0f172a4d;border:1px solid var(--chat-border);overflow:hidden}.chat-roster-header{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-bottom:1px solid var(--chat-border)}.chat-roster-title{font-size:14px;font-weight:600}.chat-roster-close{border:none;background:transparent;font-size:18px;line-height:1;cursor:pointer;padding:0 4px}.chat-roster-body{max-height:360px;overflow:auto;padding:8px 0}.chat-roster-empty{padding:16px;font-size:13px;color:var(--chat-muted)}.chat-roster-item{display:flex;align-items:center;gap:10px;padding:8px 16px}.chat-roster-item+.chat-roster-item{border-top:1px solid #f1f1f5}.chat-roster-avatar{width:32px!important;height:32px!important;border-radius:50%!important;object-fit:cover;flex:0 0 32px;display:block;max-width:none}.chat-roster-main{flex:1;min-width:0}.chat-roster-name-row{display:flex;align-items:center;gap:6px;margin-bottom:2px}.chat-roster-name{font-size:13px;font-weight:600}.chat-roster-role{font-size:11px;padding:1px 6px;border-radius:999px;border:1px solid var(--chat-border);text-transform:uppercase;letter-spacing:.03em}.chat-roster-meta{font-size:11px;color:var(--chat-muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-roster-badge{font-size:10px;text-transform:uppercase;letter-spacing:.05em;padding:3px 8px;border-radius:999px;border:1px solid var(--chat-border)}.chat-roster-badge--online{background:#dcfce7;border-color:#4ade80;color:#166534}.chat-roster-badge--offline{background:#f3f4f6;color:#4b5563}.chat-recipientbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 10px;border-top:1px solid rgba(0,0,0,.06)}.chat-recipientbar-left{display:flex;align-items:center;gap:10px}.chat-recipientbar-label{opacity:.7;font-size:12px}.chat-recipientbar-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}.selected-pill{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border-radius:999px;border:1px solid rgba(0,0,0,.12);background:#fff;font-size:12px;line-height:1;white-space:nowrap}.selected-pill-name{font-weight:600}.selected-pill-role{font-size:10px;font-weight:700;text-transform:uppercase;padding:2px 6px;border-radius:999px;border:1px solid rgba(0,0,0,.1)}.selected-pill-role.broker{background:#dff}.selected-pill-role.agent{background:#ffd}.selected-pill-role.customer{background:#fdd}.selected-pill-x{border:none;background:transparent;cursor:pointer;padding:0 2px;font-size:14px;line-height:1;opacity:.75}.selected-pill-x:hover{opacity:1}.selected-pill--muted{opacity:.7}.chip{border:1px solid rgba(0,0,0,.12);background:#fff;border-radius:999px;padding:6px 10px;font-size:12px;cursor:pointer}.chip--active{font-weight:600}.chip--small{padding:4px 8px;font-size:12px}.chip--muted{opacity:.7}.chat-card .recipient-avatar{width:28px!important;height:28px!important;max-width:none!important;max-height:none!important;border-radius:50%!important;object-fit:cover!important;flex:0 0 28px!important;display:block!important}.chat-card .recipient-row{display:flex!important;align-items:center!important;gap:10px}.chat-card .recipient-row input[type=checkbox]{flex:0 0 auto}.recipient-picker{position:relative}.recipient-picker-btn{border:1px solid rgba(0,0,0,.12);border-radius:10px;padding:6px 10px;background:#fff;cursor:pointer;font-size:12px}.recipient-dropdown{position:absolute;z-index:50;top:calc(100% + 6px);left:0;width:min(360px,90vw);max-height:340px;overflow-y:auto;overflow-x:hidden;border:1px solid rgba(0,0,0,.12);border-radius:12px;background:#fff;box-shadow:0 10px 30px #0000001a;box-sizing:border-box;font-family:var(--chat-font)}.recipient-dropdown-actions{display:flex;gap:8px;padding:10px;border-bottom:1px solid rgba(0,0,0,.06);font-size:12px}.recipient-dropdown-actions .link{background:none;border:0;padding:0;cursor:pointer;text-decoration:underline}.recipient-row{display:flex;align-items:center;gap:10px;padding:10px;cursor:pointer}.recipient-row:hover{background:#00000008}.recipient-main{flex:1;min-width:0}.recipient-name-row{display:flex;align-items:center;gap:8px}.recipient-name{font-size:13px;font-weight:600}.recipient-meta{font-size:12px;opacity:.7;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.recipient-status{font-size:11px;opacity:.8}.recipient-status.on{opacity:1}.chat-controls{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:12px 20px;border-bottom:1px solid var(--chat-border)}.ctrl-group{display:grid;gap:6px}.ctrl-label{font-size:12px;color:var(--chat-muted)}.ctrl-input{height:36px;border-radius:10px;border:1px solid var(--input-border);background:var(--input-bg);padding:0 12px;outline:none}.ctrl-input:focus{border-color:var(--chat-primary)}.chat-timeline{padding:16px 20px;height:480px;overflow:auto;scrollbar-width:thin}.chat-timeline::-webkit-scrollbar{width:8px}.chat-timeline::-webkit-scrollbar-thumb{background:var(--scrollbar-thumb);border-radius:999px}.chat-timeline .msg:last-child{margin-bottom:0}.msg{max-width:72%;margin:8px 0;display:grid;gap:4px}.msg.me{justify-self:end;text-align:right}.msg.peer{justify-self:start;text-align:left}.msg-meta{font-size:11px;color:var(--chat-muted);padding-top:4px}.msg-bubble{padding:10px 14px;border-radius:18px;box-shadow:var(--bubble-shadow);border:1px solid var(--chat-border);max-width:100%;white-space:pre-wrap;overflow-wrap:break-word;word-break:break-word}.msg.me .msg-bubble{background:var(--bubble-me-bg);color:var(--bubble-me-fg);border-color:transparent}.msg.peer .msg-bubble{background:var(--bubble-peer-bg);color:var(--bubble-peer-fg)}.msg-sending{font-size:10px;color:var(--chat-muted)}.msg-role-pill{background:#eef;color:#334;padding:2px 6px;border-radius:6px;font-size:.65rem;text-transform:uppercase;font-weight:600}.msg-role-pill.broker{background:#dff}.msg-role-pill.agent{background:#ffd}.msg-role-pill.customer{background:#fdd}.chat-composer{display:grid;grid-template-columns:1fr auto;gap:8px;padding:12px 20px 16px;border-top:1px solid var(--chat-border)}.chat-text{height:40px;border-radius:12px;border:1px solid var(--input-border);background:var(--input-bg);padding:0 12px;outline:none}.chat-text:focus{border-color:var(--chat-primary)}.chat-send{height:40px;padding:0 16px;border:none;border-radius:12px;background:var(--chat-primary);color:#fff;cursor:pointer}.chat-send:disabled{background:#a7a7c8;cursor:not-allowed}.presence-typing{margin:8px 0 0;font-size:12px;color:var(--chat-muted)}.msg{display:flex;gap:8px;align-items:flex-start;max-width:72%;margin:8px 0}.msg.me{margin-left:auto;flex-direction:row-reverse;text-align:right}.msg-avatar{width:28px!important;height:28px!important;border-radius:50%;object-fit:cover;flex:0 0 28px;box-shadow:var(--bubble-shadow)}.msg-content{display:grid;gap:4px}.msg.me .msg-meta{text-align:right}.msg-channel-pill{display:inline-block;padding:2px 8px;border-radius:999px;font-size:10px;font-weight:600;text-transform:uppercase;border:1px solid rgba(255,255,255,.2);opacity:.9;background-color:#ebebeb}.msg-delivery-summary{border:none;background:none;padding:0;margin:0;font-size:11px;cursor:pointer;text-decoration:underline}.msg-delivery-detail{margin-top:4px;display:flex;flex-wrap:wrap;gap:4px}.msg-delivery-pill{font-size:11px;border-radius:999px;padding:2px 8px;border:1px solid #d0d7de;background:#f6f8fa;display:inline-flex;align-items:center}.msg-delivery-pill-dot{margin:0 4px}.msg-delivery-channel{font-weight:600}.typing-row{margin:4px 0;align-items:center!important}.typing-row-inner{display:flex;align-items:center;gap:8px;padding:2px}.typing-bubble{padding:12px;width:fit-content;background:var(--bubble-peer-bg);border:1px solid var(--chat-border)}.typing-name{font-size:12px;color:var(--chat-muted);white-space:nowrap}.typing-dots{display:inline-flex;align-items:center;justify-content:center;gap:4px}.typing-dots span{width:6px;height:6px;background:var(--chat-muted);border-radius:50%;animation:dotBlink 1.2s infinite ease-in-out}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes dotBlink{0%,80%,to{opacity:.3;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}.date-separator{display:block;margin:10px auto;width:max-content;padding:6px 14px;border-radius:10px;background:#e2e2e2;color:#333;font-size:13px;font-weight:600;line-height:1.2;box-shadow:0 1px 2px #00000014}@media (prefers-color-scheme: dark){.date-separator,.date-sticky{background:#2a2f33;color:#ddd}}