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Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "Courier New", Courier, monospace;--text-xs: .75rem;--text-sm: .875rem;--text-base: 1rem;--text-lg: 1.125rem;--text-xl: 1.25rem;--text-2xl: 1.5rem;--text-3xl: 1.875rem;--text-4xl: 2.25rem;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.625;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--font-extrabold: 800;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--space-16: 4rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--radius-xl: 16px;--radius-2xl: 20px;--radius-full: 9999px;--shadow-xs: 0 1px 2px rgba(0, 0, 0, .05);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 6px rgba(0, 0, 0, .07), 0 2px 4px rgba(0, 0, 0, .06);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .1), 0 4px 6px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px rgba(0, 0, 0, .1), 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button:disabled{opacity:.4;cursor:not-allowed;transform:none}.ct-bubble-img{max-width:220px;max-height:200px;border-radius:10px;cursor:pointer;object-fit:cover;display:block;margin-bottom:4px;transition:opacity .2s}.ct-bubble-img:hover{opacity:.85}.ct-image-preview{display:flex;align-items:center;gap:8px;padding:6px 12px;background:#f0f4f8;border-top:1px solid #e2e8f0}.ct-image-preview img{width:56px;height:56px;border-radius:8px;object-fit:cover}.ct-image-preview-close{background:none;border:none;color:#ef4444;cursor:pointer;font-size:.9rem;padding:4px}.ct-attach-btn{background:none;border:none;color:#64748b;font-size:1.1rem;cursor:pointer;padding:6px;transition:color .2s}.ct-attach-btn:hover{color:#0077b6}.ct-quick-replies{display:flex;gap:6px;flex-wrap:wrap;align-items:center;padding:6px 12px;background:#f8fafc;border-top:1px solid 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.ct-bubble-footer{justify-content:flex-start}.ct-read-receipt{color:#94a3b8;font-size:.7rem;display:inline-flex}.ct-read-receipt.ct-delivered{color:#94a3b8}.ct-read-receipt.ct-read{color:#0077b6}.ct-online-dot{display:inline-block;width:8px;height:8px;background:#22c55e;border-radius:50%;margin-left:6px;vertical-align:middle;box-shadow:0 0 0 2px #fff}.ct-delete-btn{background:none;border:none;color:#cbd5e1;cursor:pointer;padding:2px;font-size:.65rem;opacity:0;transition:opacity .15s,color .15s}.ct-bubble:hover .ct-delete-btn{opacity:1}.ct-delete-btn:hover{color:#ef4444}.ct-delete-confirm{display:inline-flex;gap:4px}.ct-delete-yes{background:#ef4444;color:#fff;border:none;border-radius:4px;padding:1px 8px;font-size:.7rem;font-weight:600;cursor:pointer}.ct-delete-no{background:#e2e8f0;color:#475569;border:none;border-radius:4px;padding:1px 8px;font-size:.7rem;cursor:pointer}.ct-typing-indicator{display:flex;align-items:center;gap:8px;padding:6px 16px;color:#64748b;font-size:.82rem}.ct-typing-dots{display:inline-flex;gap:3px;align-items:center}.ct-typing-dots span{width:6px;height:6px;background:#94a3b8;border-radius:50%;animation:ct-dot-bounce 1.4s infinite ease-in-out both}.ct-typing-dots span:nth-child(1){animation-delay:0s}.ct-typing-dots span:nth-child(2){animation-delay:.2s}.ct-typing-dots span:nth-child(3){animation-delay:.4s}@keyframes ct-dot-bounce{0%,80%,to{transform:scale(.6);opacity:.4}40%{transform:scale(1);opacity:1}}.ct-typing-label{font-style:italic}.ct-edited-label{font-size:.65rem;opacity:.6;margin-left:6px;font-style:italic}.ct-edit-box{width:100%}.ct-edit-input{width:100%;padding:6px 10px;border:1.5px solid #0077b6;border-radius:8px;font-size:13px;outline:none;background:#fffffff2;color:#111}.ct-mine .ct-edit-input{color:#111}.ct-edit-actions{display:flex;gap:4px;margin-top:4px;justify-content:flex-end}.ct-edit-save{background:#0077b6;color:#fff;border:none;border-radius:4px;padding:2px 10px;font-size:.7rem;font-weight:600;cursor:pointer}.ct-edit-cancel{background:#e2e8f0;color:#475569;border:none;border-radius:4px;padding:2px 10px;font-size:.7rem;cursor:pointer}.ct-reactions-bar{display:flex;flex-wrap:wrap;gap:4px;margin-top:4px}.ct-reaction-pill{display:inline-flex;align-items:center;gap:2px;background:#0000000f;border:1px solid transparent;border-radius:12px;padding:2px 8px;font-size:.75rem;cursor:pointer;transition:all .15s;line-height:1.4}.ct-mine .ct-reaction-pill{background:#fff3}.ct-reaction-pill:hover{background:#0000001a;transform:scale(1.1)}.ct-reaction-mine{border-color:#0077b6;background:#0077b61a}.ct-mine .ct-reaction-mine{border-color:#fff;background:#ffffff4d}.ct-emoji-picker{display:flex;flex-wrap:wrap;gap:2px;background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:6px;box-shadow:0 4px 16px #0000001f;margin-top:4px;width:max-content;max-width:220px}.ct-theirs .ct-emoji-picker{margin-right:auto}.ct-mine 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