.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.chat-panel{padding:0;overflow:hidden}
.chat-header{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:17px 20px;border-bottom:1px solid var(--line)}
.chat-header strong{display:block}
.chat-header small{display:block;margin-top:4px}
.chat-selector{grid-template-columns:auto minmax(210px,360px);align-items:center}
.chat-tools{display:flex;align-items:center;gap:9px;flex-wrap:wrap}
.chat-messages{height:min(58vh,640px);min-height:380px;overflow:auto;padding:22px;background:#f5f6fa;display:flex;flex-direction:column;gap:9px;scroll-behavior:smooth}
.chat-message{display:flex}
.chat-message.outbound{justify-content:flex-end}
.chat-bubble{max-width:min(72%,720px);padding:10px 13px 8px;background:white;border:1px solid #e1e4ed;border-radius:5px 14px 14px 14px;box-shadow:0 1px 2px #18203108;overflow-wrap:anywhere}
.chat-message.outbound .chat-bubble{background:#eeeafe;border-color:#d9d2fb;border-radius:14px 5px 14px 14px}
.chat-author{display:block;color:#5545bd;font-size:.78rem;margin-bottom:5px}
.chat-text{font-size:.9375rem;line-height:1.48}
.chat-attachments{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.chat-attachment{display:inline-flex;align-items:center;gap:6px;background:#fff;border:1px solid #dfe2eb;border-radius:7px;padding:7px 9px;color:#4f5a6e;font-size:.8rem}
.chat-meta{display:block;text-align:right;margin-top:5px;font-size:.7rem;color:#7b8496}
.chat-error{display:block;color:#a33f3f;margin-top:5px}
.chat-empty{text-align:center;color:var(--muted);margin:auto;padding:35px 20px;line-height:1.55}
.chat-empty p{margin:8px 0 0}
.chat-history-note{text-align:center;color:var(--muted);font-size:.75rem;padding:5px 10px}
.chat-compose{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:10px;padding:14px 20px 8px;border-top:1px solid var(--line);background:white;align-items:end}
.chat-compose textarea{min-height:54px;max-height:160px}
.chat-compose button{min-height:54px}
.chat-hint{display:block;padding:0 20px 14px;background:white}
.chat-compose textarea:disabled{background:#f1f2f6}
.chat-panel>.loading{min-height:380px}
.participants-panel .section-head{align-items:flex-start}
.participants-panel .section-head small{display:block;margin-top:5px}
.participant-hint{border:1px solid #ddd7fb;background:#f7f5ff;color:#51458a;border-radius:9px;padding:13px 15px;margin-top:4px;font-size:.875rem;line-height:1.5}
.participant-list{display:grid;gap:10px}
.participant-card{display:grid;grid-template-columns:40px minmax(0,1fr) auto;gap:12px;align-items:center;border:1px solid var(--line);border-radius:10px;padding:13px 14px}
.participant-avatar{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:#eeeafd;color:#5743cf;font-weight:700}
.participant-details{min-width:0}
.participant-details strong,.participant-details span,.participant-details small{display:block;overflow-wrap:anywhere}
.participant-details span{margin-top:3px;font-size:.875rem}
.participant-details small{margin-top:3px}
.participant-actions{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}
.contact-search{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:10px;margin:18px 0}
.contact-results{display:grid;gap:11px;max-height:48vh;overflow:auto;padding-right:3px}
.contact-option{border:1px solid var(--line);border-radius:11px;padding:14px}
.contact-heading{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.contact-heading strong,.contact-heading small{display:block}
.contact-heading small{margin-top:4px}
.contact-source{background:#f0edfd;color:#5140bc;border-radius:999px;padding:4px 8px;font-size:.7rem;white-space:nowrap}
.contact-deals{display:block;margin-top:9px;line-height:1.45}
.contact-chats{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:8px;margin-top:12px}
.contact-chat{display:flex;grid-template-columns:none;align-items:center;gap:9px;border:1px solid #e2e4ec;border-radius:8px;padding:10px;cursor:pointer}
.contact-chat:has(input:checked){border-color:#8878e8;background:#f5f3ff}
.contact-chat:has(input:disabled){opacity:.55;cursor:not-allowed}
.contact-chat input{width:auto}
.contact-chat span,.contact-chat strong,.contact-chat small{display:block;min-width:0}
.contact-chat small{margin-top:3px}
.contact-no-chat,.contact-empty{padding:14px;border-radius:8px;background:#f5f6f9;color:var(--muted);font-size:.8125rem}
.contact-empty{display:grid;gap:5px;text-align:center;padding:28px}
.chat-no-selection{margin-top:0}

@media(max-width:750px){
 .participants-panel .section-head{align-items:stretch;flex-direction:column}
 .participants-panel .section-head button{width:100%}
 .participant-card{grid-template-columns:38px minmax(0,1fr)}
 .participant-actions{grid-column:1/-1;justify-content:stretch}
 .participant-actions button{flex:1}
 .contact-search{grid-template-columns:1fr}
 .contact-heading{flex-direction:column}
 .contact-source{white-space:normal}
 .contact-chats{grid-template-columns:1fr}
 .chat-header{align-items:stretch;flex-direction:column}
 .chat-selector{grid-template-columns:1fr}
 .chat-tools>*{flex:1}
 .chat-messages{height:55vh;min-height:320px;padding:14px}
 .chat-bubble{max-width:88%}
 .chat-compose{grid-template-columns:1fr;padding:12px 14px 7px}
 .chat-compose button{min-height:auto}
 .chat-hint{padding:0 14px 12px}
 .chat-panel{margin-left:-1px;margin-right:-1px}
}