:root{--bg-primary:#fff;--bg-secondary:#f0f2f5;--bg-sidebar:#0a1628;--text-primary:#1a1a2e;--text-secondary:#65676b;--text-muted:#8a8d91;--accent-blue:#0068ff;--accent-blue-dark:#0052cc;--accent-blue-light:#e8f0fe;--accent-green:#10b981;--accent-orange:#f59e0b;--accent-red:#ef4444;--accent-purple:#8b5cf6;--border-color:#e4e6eb;--shadow-sm:0 1px 2px #0000000d;--shadow-md:0 4px 12px #0000001a;--shadow-lg:0 8px 24px #00000026;--radius-sm:6px;--radius-md:10px;--radius-lg:16px;--sidebar-width:260px;--topbar-height:60px;--transition:.2s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;color:var(--text-primary);background:var(--bg-secondary);-webkit-font-smoothing:antialiased;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:14px;line-height:1.5}a{color:var(--accent-blue);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;background:0 0;border:none;outline:none;font-family:inherit}input,select,textarea{font-family:inherit;font-size:14px}.text-muted{color:var(--text-muted)}.text-danger{color:var(--accent-red)}.text-success{color:var(--accent-green)}.login-overlay{z-index:9999;background:linear-gradient(135deg,#0a1628 0%,#1a2f5a 50%,#0068ff22 100%);justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.login-card{background:var(--bg-primary);border-radius:var(--radius-lg);width:100%;max-width:420px;box-shadow:var(--shadow-lg);padding:40px 36px}.login-header{text-align:center;margin-bottom:28px}.login-header h2{color:var(--text-primary);margin-top:12px;font-size:1.5rem;font-weight:700}.login-header p{color:var(--text-muted);margin-top:4px;font-size:.9rem}.login-error{color:var(--accent-red);text-align:center;min-height:20px;margin-top:10px;font-size:.85rem}.auth-toggle{text-align:center;color:var(--text-muted);margin-top:16px;font-size:.875rem}.auth-toggle a{color:var(--accent-blue);margin-left:4px;font-weight:600}.logo-icon{background:var(--accent-blue);border-radius:var(--radius-md);color:#fff;flex-shrink:0;justify-content:center;align-items:center;width:36px;height:36px;font-size:1rem;display:flex}.logo-icon.large{border-radius:var(--radius-lg);width:64px;height:64px;margin:0 auto 4px;font-size:1.75rem}#app{height:100vh;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-width);background:var(--bg-sidebar);transition:width var(--transition);z-index:200;flex-direction:column;flex-shrink:0;display:flex;overflow:hidden}.sidebar.collapsed{width:64px}.sidebar-header{height:var(--topbar-height);border-bottom:1px solid #ffffff14;flex-shrink:0;justify-content:space-between;align-items:center;padding:0 16px;display:flex}.logo{align-items:center;gap:10px;display:flex;overflow:hidden}.logo-text{color:#fff;white-space:nowrap;transition:opacity var(--transition);font-size:1rem;font-weight:700}.sidebar.collapsed .logo-text{opacity:0;pointer-events:none}.sidebar-toggle{color:#ffffff80;border-radius:var(--radius-sm);transition:color var(--transition), background var(--transition);padding:6px;font-size:1rem}.sidebar-toggle:hover{color:#fff;background:#ffffff1a}.sidebar-nav{scrollbar-width:thin;scrollbar-color:#ffffff1a transparent;flex:1;padding:12px 0;overflow:hidden auto}.sidebar-nav::-webkit-scrollbar{width:4px}.sidebar-nav::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:2px}.nav-section-label{letter-spacing:.08em;text-transform:uppercase;color:#ffffff4d;white-space:nowrap;transition:opacity var(--transition);padding:16px 20px 6px;font-size:.7rem;font-weight:600;overflow:hidden}.sidebar.collapsed .nav-section-label{opacity:0}.nav-item{color:#fff9;transition:background var(--transition), color var(--transition);white-space:nowrap;border-radius:0;align-items:center;gap:12px;padding:10px 20px;font-size:.875rem;font-weight:500;text-decoration:none;display:flex;position:relative;overflow:hidden}.nav-item i{text-align:center;flex-shrink:0;width:20px;font-size:1rem}.nav-item span:not(.nav-badge){transition:opacity var(--transition)}.sidebar.collapsed .nav-item span:not(.nav-badge){opacity:0;pointer-events:none}.nav-item:hover{color:#fff;background:#ffffff14;text-decoration:none}.nav-item.active{color:#fff;background:#0068ff40}.nav-item.active:before{content:"";background:var(--accent-blue);border-radius:0 2px 2px 0;width:3px;position:absolute;top:0;bottom:0;left:0}.nav-item.text-danger{color:#ef4444cc}.nav-item.text-danger:hover{color:var(--accent-red);background:#ef44441a}.nav-badge{background:var(--accent-blue);color:#fff;text-align:center;min-width:20px;transition:opacity var(--transition);border-radius:20px;flex-shrink:0;margin-left:auto;padding:1px 7px;font-size:.7rem;font-weight:700}.nav-badge.warning{background:var(--accent-orange)}.sidebar.collapsed .nav-badge{opacity:0}.sidebar-footer{border-top:1px solid #ffffff14;flex-shrink:0;padding:12px 16px}.tenant-info{color:#fff6;white-space:nowrap;text-overflow:ellipsis;transition:opacity var(--transition);margin-bottom:8px;padding:0 4px;font-size:.75rem;overflow:hidden}.sidebar.collapsed .tenant-info{opacity:0}.oa-status{color:#ffffff80;border-radius:var(--radius-sm);align-items:center;gap:8px;padding:6px 8px;font-size:.75rem;display:flex;overflow:hidden}.oa-status span{transition:opacity var(--transition);white-space:nowrap}.sidebar.collapsed .oa-status span{opacity:0}.status-dot{border-radius:50%;flex-shrink:0;width:8px;height:8px}.status-dot.online{background:var(--accent-green);box-shadow:0 0 0 2px #10b9814d}.status-dot.offline{background:var(--text-muted)}.main-content{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.topbar{height:var(--topbar-height);background:var(--bg-primary);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);z-index:100;flex-shrink:0;justify-content:space-between;align-items:center;gap:16px;padding:0 20px;display:flex}.topbar-left{align-items:center;gap:12px;min-width:0;display:flex}.page-title{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:1.1rem;font-weight:700;overflow:hidden}.mobile-menu-btn{color:var(--text-secondary);border-radius:var(--radius-sm);transition:background var(--transition);padding:6px;font-size:1.1rem;display:none}.mobile-menu-btn:hover{background:var(--bg-secondary)}.topbar-right{flex-shrink:0;align-items:center;gap:12px;display:flex}.topbar-actions{align-items:center;gap:8px;display:flex}.source-tabs{background:var(--bg-secondary);border-radius:var(--radius-sm);gap:2px;padding:2px;display:flex}.source-tab{border-radius:calc(var(--radius-sm) - 2px);color:var(--text-secondary);transition:background var(--transition), color var(--transition);padding:5px 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#0068ff59}.btn-send:hover{background:var(--accent-blue-dark);transform:scale(1.05)}.notif-dot{background:var(--accent-red);border:2px solid var(--bg-primary);border-radius:50%;width:8px;height:8px;display:none;position:absolute;top:4px;right:4px}.notif-dot.visible{display:block}.form-group{margin-bottom:16px}.form-group label{color:var(--text-secondary);margin-bottom:6px;font-size:.85rem;font-weight:500;display:block}.form-input{border:1px solid var(--border-color);border-radius:var(--radius-sm);background:var(--bg-primary);width:100%;color:var(--text-primary);transition:border-color var(--transition), box-shadow var(--transition);outline:none;padding:10px 12px;font-size:.9rem}.form-input:focus{border-color:var(--accent-blue);box-shadow:0 0 0 3px #0068ff1f}.form-input::placeholder{color:var(--text-muted)}select.form-input{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 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10px;font-size:.75rem;font-weight:500;display:inline-flex}.tag-chip .remove{cursor:pointer;opacity:.6}.tag-chip .remove:hover{opacity:1}.tag-selector{border:1px solid var(--border-color);border-radius:var(--radius-sm);cursor:text;flex-wrap:wrap;gap:6px;min-height:40px;padding:8px;display:flex}.status-badge{white-space:nowrap;border-radius:20px;align-items:center;gap:4px;padding:3px 10px;font-size:.75rem;font-weight:600;display:inline-flex}.status-badge:before{content:"";background:currentColor;border-radius:50%;flex-shrink:0;width:6px;height:6px}.status-badge.new{color:#0284c7;background:#e0f2fe}.status-badge.approaching{color:#d97706;background:#fef3c7}.status-badge.contacted{color:#1d4ed8;background:#dbeafe}.status-badge.waiting{color:#7c3aed;background:#f3e8ff}.status-badge.closed{color:#15803d;background:#dcfce7}.status-badge.rejected{color:#dc2626;background:#fee2e2}.contacts-table-wrap{background:var(--bg-primary);border:1px solid var(--border-color);border-radius:var(--radius-md);overflow:auto hidden}.contacts-table{border-collapse:collapse;width:100%;min-width:600px}.contacts-table thead{background:var(--bg-secondary)}.contacts-table thead th{text-align:left;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.05em;white-space:nowrap;border-bottom:1px solid var(--border-color);padding:12px 16px;font-size:.8rem;font-weight:600}.contacts-table thead th:first-child{padding-left:20px}.contacts-table thead th:last-child{padding-right:20px}.contacts-table tbody tr{border-bottom:1px solid var(--bg-secondary);transition:background var(--transition)}.contacts-table tbody tr:last-child{border-bottom:none}.contacts-table tbody tr:hover{background:#f8f9fb}.contact-row td{vertical-align:middle;padding:12px 16px;font-size:.875rem}.contact-row td:first-child{padding-left:20px}.contact-row 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.cb-avatar{background:var(--accent-blue);color:#fff;border-radius:50%;flex-shrink:0;justify-content:center;align-self:flex-end;align-items:center;width:28px;height:28px;font-size:.7rem;font-weight:700;display:flex}.chat-bubble-row.sent .cb-avatar{display:none}.chat-bubble-group{flex-direction:column;gap:2px;max-width:70%;display:flex}.chat-bubble-row.sent .chat-bubble-group{align-items:flex-end}.chat-bubble-row.received .chat-bubble-group{align-items:flex-start}.cb-content{word-break:break-word;white-space:pre-wrap;border-radius:18px;max-width:100%;padding:10px 14px;font-size:.9rem;line-height:1.5;position:relative}.chat-bubble-row.received .cb-content{color:var(--text-primary);background:#e4e6eb;border-bottom-left-radius:4px}.chat-bubble-row.sent .cb-content{background:var(--accent-blue);color:#fff;border-bottom-right-radius:4px}.cb-time{color:var(--text-muted);white-space:nowrap;padding:0 2px;font-size:.7rem}.chat-bubble-row.sent 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