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textarea:disabled{opacity:.6;cursor:not-allowed}.send-button{width:44px;height:44px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:50%;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:16px;transition:all .2s ease;flex-shrink:0}.send-button:hover:not(:disabled){transform:scale(1.1);box-shadow:0 4px 16px #667eea4d}.send-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.quick-actions{display:flex;gap:8px;flex-wrap:wrap}.quick-action{background:#f8fafc;color:#374151;border:1px solid #e5e7eb;padding:8px 12px;border-radius:16px;font-size:12px;cursor:pointer;transition:all .2s ease;white-space:nowrap}.quick-action:hover:not(:disabled){background:#667eea;color:#fff;border-color:#667eea;transform:translateY(-1px)}.quick-action:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 480px){.chat-window{width:calc(100vw - 20px);height:calc(100vh - 40px);bottom:10px;right:10px;left:10px;border-radius:16px}.chat-bubble{bottom:15px;right:15px}.products-grid{gap:8px}.product-card{padding:12px}.quick-actions{gap:6px}.quick-action{font-size:11px;padding:6px 10px}}