:root{--primary: #d7263d;--primary-dark: #a91d30;--bg: #f4f5f7;--surface: #ffffff;--text: #1c1e21;--muted: #6b7280;--border: #e5e7eb;color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Apple SD Gothic Neo,Malgun Gothic,sans-serif;background:var(--bg);color:var(--text);font-size:14px}button{font:inherit;cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.app{display:flex;flex-direction:column;height:100vh}.topbar{display:flex;flex-wrap:wrap;align-items:center;gap:8px 10px;padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border)}.topbar>*{flex:0 0 auto}.topbar h1{font-size:15px;margin:0;white-space:nowrap}.topbar .pill,.topbar .ghost-button,.topbar .lang-select{white-space:nowrap}.pill{font-size:12px;padding:2px 9px;border-radius:999px;background:#eef2ff;color:#4338ca}.pill.warn{background:#fff7ed;color:#9a3412}.pill.ok{background:#ecfdf5;color:#047857}.pill.admin{background:#fef2f2;color:#b91c1c;font-weight:600}.pill.build-time{background:transparent;color:var(--muted);border:1px solid var(--border);font-variant-numeric:tabular-nums;font-size:11px}.layout{flex:1;display:grid;grid-template-columns:320px 1fr;min-height:0}.list-pane{border-right:1px solid var(--border);background:var(--surface);display:flex;flex-direction:column;min-height:0}.list-header{padding:10px 12px;display:flex;flex-direction:column;gap:8px;border-bottom:1px solid var(--border)}.search{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.filters{display:flex;gap:6px;flex-wrap:wrap}.chip{border:1px solid var(--border);background:#fff;border-radius:999px;padding:4px 11px;font-size:12px;color:var(--muted)}.chip.active{background:var(--primary);border-color:var(--primary);color:#fff}.list{flex:1;overflow-y:auto;margin:0;padding:0;list-style:none}.list-item{width:100%;text-align:left;border:0;border-bottom:1px solid var(--border);background:transparent;padding:11px 12px;display:flex;flex-direction:column;gap:4px}.list-item:hover{background:#f9fafb}.list-item[aria-current=true]{background:#fef2f4;border-left:3px solid var(--primary)}.list-item .row1{display:flex;align-items:center;gap:6px}.list-item .who{font-weight:600;flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.list-item .preview{color:var(--muted);font-size:12px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.badge-count{background:var(--primary);color:#fff;border-radius:999px;min-width:18px;height:18px;font-size:11px;display:inline-flex;align-items:center;justify-content:center;padding:0 5px}.lang-tag{font-size:11px;color:var(--muted);border:1px solid var(--border);border-radius:4px;padding:0 5px}.empty{padding:24px 12px;color:var(--muted);text-align:center}.chat-pane{position:relative;display:flex;flex-direction:column;min-height:0}.chat-pane.dragging{outline:2px dashed var(--primary);outline-offset:-6px}.drop-overlay{position:absolute;top:0;right:0;bottom:0;left:0;z-index:5;display:flex;align-items:center;justify-content:center;background:#ffffffe0;color:var(--primary);font-weight:700;pointer-events:none}.chat-header{padding:10px 16px;background:var(--surface);border-bottom:1px solid var(--border);display:flex;align-items:center;gap:10px}.chat-header .title{font-weight:600;flex:1}.ghost-button{border:1px solid var(--border);background:#fff;border-radius:8px;padding:6px 11px;font-size:13px}.ghost-button:hover{background:#f3f4f6}.messages{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}.row{display:flex;flex-direction:column;max-width:72%}.row.customer{align-self:flex-start;align-items:flex-start}.row.agent{align-self:flex-end;align-items:flex-end}.row.system{align-self:center;align-items:center}.bubble{padding:9px 13px;border-radius:14px;white-space:pre-wrap;word-break:break-word}.row.customer .bubble{background:var(--surface);border:1px solid var(--border);border-bottom-left-radius:4px}.row.agent .bubble{background:var(--primary);color:#fff;border-bottom-right-radius:4px}.row.system .bubble{background:transparent;color:var(--muted);font-size:12px}.meta{display:flex;align-items:center;gap:6px;margin-top:4px;font-size:11px;color:var(--muted)}.link-button{background:none;border:0;padding:0;text-decoration:underline;color:var(--muted);font-size:11px}.link-button:hover{color:var(--text)}.badge{display:inline-flex;align-items:center;gap:4px;padding:1px 7px;border-radius:999px;font-size:11px}.badge.pending{background:#eef2ff;color:#4338ca}.badge.failed{background:#fef2f2;color:#b91c1c}.badge.skipped{background:#f3f4f6;color:#6b7280}.attachments{display:flex;flex-direction:column;gap:6px;margin-top:6px;max-width:100%}.attachment-image{display:block;border-radius:12px;overflow:hidden;border:1px solid var(--border);background:#fff;text-decoration:none}.attachment-image img{display:block;max-width:260px;max-height:260px;width:auto;height:auto}.attachment-caption{display:block;padding:5px 9px;font-size:11px;color:var(--muted);border-top:1px solid var(--border);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:260px}.attachment-file{display:flex;align-items:center;gap:9px;padding:9px 11px;border:1px solid var(--border);border-radius:11px;background:#fff;text-decoration:none;color:var(--text);max-width:280px}.attachment-file:hover{border-color:var(--primary)}.attachment-icon{font-size:18px;flex:none}.attachment-info{display:flex;flex-direction:column;min-width:0}.attachment-name{font-size:13px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.attachment-size{font-size:11px;color:var(--muted)}.pending-attachments{display:flex;flex-wrap:wrap;gap:6px}.pending-chip{position:relative;display:flex;align-items:center;gap:8px;padding:6px 8px;border:1px solid var(--border);border-radius:10px;background:#fff;overflow:hidden;min-width:200px;max-width:280px}.pending-chip.failed{border-color:#fca5a5;background:#fef2f2}.pending-thumb{width:34px;height:34px;border-radius:7px;object-fit:cover;flex:none;background:#f3f4f6}.pending-thumb.icon{display:inline-flex;align-items:center;justify-content:center;font-size:16px}.pending-info{display:flex;flex-direction:column;min-width:0;flex:1}.pending-name{font-size:12px;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.pending-status{font-size:11px;color:var(--muted)}.pending-chip.failed .pending-status{color:#b91c1c}.pending-bar{position:absolute;left:0;bottom:0;height:2px;width:100%}.pending-bar>span{display:block;height:100%;background:var(--primary);transition:width .12s linear}.pending-remove{border:0;background:none;cursor:pointer;color:var(--muted);width:24px;height:24px;flex:none;border-radius:6px}.pending-remove:hover{background:#0000000f}.ghost-button.notify-off{border-color:#fca5a5;background:#fef2f2;color:#b91c1c;font-weight:600}.ghost-button.notify-off:hover{background:#fee2e2}.attach-button{border:1px solid var(--border);background:#fff;border-radius:9px;width:42px;height:42px;flex:none;font-size:17px;cursor:pointer}.attach-button:hover{background:#f3f4f6;border-color:var(--primary)}.original{margin-top:4px;padding:7px 10px;background:#f9fafb;border-left:3px solid var(--border);border-radius:6px;font-size:12px;color:var(--muted);white-space:pre-wrap;word-break:break-word}.skeleton{display:inline-block;width:80px;height:9px;border-radius:5px;background:linear-gradient(90deg,#e5e7eb 25%,#f3f4f6,#e5e7eb 75%);background-size:200% 100%;animation:shimmer 1.2s infinite}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}.loading-messages{display:flex;flex-direction:column;gap:10px}.loading-messages .row{max-width:72%}.skeleton-bubble{height:38px;min-width:90px;border-radius:14px;background:linear-gradient(90deg,#e9ebef 25%,#f4f5f7,#e9ebef 75%);background-size:200% 100%;animation:shimmer 1.2s infinite}.loading-messages .row.customer .skeleton-bubble{border-bottom-left-radius:4px}.loading-messages .row.agent .skeleton-bubble{border-bottom-right-radius:4px}@media (prefers-reduced-motion: reduce){.skeleton,.skeleton-bubble{animation:none}}.typing{padding:0 16px 8px;font-size:12px;color:var(--muted)}.composer{border-top:1px solid var(--border);background:var(--surface);padding:10px 12px;display:flex;flex-direction:column;gap:8px}.quick-replies{display:flex;gap:6px;flex-wrap:wrap}.composer-row{display:flex;gap:8px;align-items:flex-end}.composer textarea{flex:1;min-height:44px;max-height:140px;resize:vertical;padding:9px 11px;border:1px solid var(--border);border-radius:9px;font-family:inherit;font-size:14px}.primary-button{background:var(--primary);color:#fff;border:0;border-radius:9px;padding:10px 18px;font-weight:600}.primary-button:hover{background:var(--primary-dark)}.primary-button:disabled{background:#d1d5db;cursor:not-allowed}.login{min-height:100vh;display:grid;place-items:center;padding:24px}.login form{background:var(--surface);padding:28px;border-radius:14px;width:360px;max-width:100%;display:flex;flex-direction:column;gap:12px;box-shadow:0 10px 30px #00000014}.login h1{margin:0 0 4px;font-size:18px}.login p{margin:0;color:var(--muted);font-size:13px}.login input,.login select{padding:9px 11px;border:1px solid var(--border);border-radius:9px;font-size:14px}.error{color:#b91c1c;font-size:13px}.summary-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:16px 18px;max-width:720px;margin:0 auto}.summary-card h2{margin:0 0 6px;font-size:14px}.summary-note{margin:0 0 12px;font-size:12px;color:var(--muted)}.summary-body{margin:0;font-family:inherit;font-size:14px;line-height:1.7;white-space:pre-wrap;word-break:break-word}.hint-line{margin:0;font-size:13px;color:var(--muted);text-align:center}.ghost-button.hold-active{border-color:#f59e0b;background:#fffbeb;color:#92400e}.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}