:root{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-sidebar-bg: #1e2433;--color-sidebar-text: #cbd5e1;--color-sidebar-active: #2563eb;--color-sidebar-hover: #2d3748;--color-bg: #f8f9fb;--color-surface: #ffffff;--color-border: #e2e8f0;--color-text: #1e293b;--color-text-muted: #64748b;--color-danger: #dc2626;--color-danger-hover: #b91c1c;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--font-sans: "system-ui", "-apple-system", "Segoe UI", "Roboto", sans-serif;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -2px rgba(0, 0, 0, .1);--sidebar-width: 240px;--topbar-height: 56px}*,*:before,*:after{box-sizing:border-box}html{font-size:16px}body{margin:0;padding:0;background-color:var(--color-bg);color:var(--color-text);font-family:var(--font-sans);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{margin:0 0 var(--space-md) 0;font-weight:600;line-height:1.25}p{margin:0 0 var(--space-md) 0}a{color:var(--color-primary);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid var(--color-primary);outline-offset:2px}button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;padding:0;margin:0}button:disabled{cursor:not-allowed;opacity:.65}input,textarea,select{font-family:inherit;font-size:inherit;border:1px solid var(--color-border);border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);background-color:var(--color-surface);color:var(--color-text);width:100%}input:focus,textarea:focus,select:focus{outline:2px solid var(--color-primary);outline-offset:0;border-color:var(--color-primary)}input[type=radio],input[type=checkbox]{width:auto;padding:0;border:none;background:none;flex-shrink:0}.page-content{padding:var(--space-lg)}.login-root{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--color-bg);padding:var(--space-md)}.login-card{background-color:var(--color-surface);border-radius:var(--radius-lg);box-shadow:var(--shadow-md);padding:var(--space-2xl);width:100%;max-width:400px}.login-brand{text-align:center;margin-bottom:var(--space-xl)}.login-brand-title{font-size:1.75rem;font-weight:700;color:var(--color-text);margin:0;letter-spacing:.05em}.login-brand-subtitle{font-size:.875rem;color:var(--color-text-muted);margin:var(--space-xs) 0 0 0;letter-spacing:.1em;text-transform:uppercase}.login-form{display:flex;flex-direction:column;gap:var(--space-md)}.form-group{display:flex;flex-direction:column;gap:var(--space-xs)}.form-label{font-size:.875rem;font-weight:500;color:var(--color-text)}.form-input{padding:var(--space-sm) var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-sm);font-size:1rem;transition:border-color .15s,outline .15s}.btn-primary{background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-sm);padding:var(--space-sm) var(--space-md);font-size:1rem;font-weight:500;width:100%;cursor:pointer;transition:background-color .15s;margin-top:var(--space-sm);min-height:40px}.btn-primary:hover:not(:disabled){background-color:var(--color-primary-hover)}.btn-primary:disabled{cursor:not-allowed;opacity:.65}.error-message{font-size:.875rem;color:var(--color-danger);padding:var(--space-sm) var(--space-md);background-color:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius-sm);text-align:center}.app-layout{display:flex;min-height:100vh}.app-topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-height);background-color:var(--color-surface);border-bottom:1px solid var(--color-border);display:flex;align-items:center;padding:0 var(--space-md);z-index:100;box-shadow:var(--shadow-sm)}.topbar-menu-btn{display:none;align-items:center;justify-content:center;background:none;border:none;cursor:pointer;padding:var(--space-sm);border-radius:var(--radius-sm);color:var(--color-text);margin-right:var(--space-sm)}.topbar-menu-btn:hover{background-color:var(--color-bg)}.topbar-app-name{font-size:1rem;font-weight:700;color:var(--color-text);letter-spacing:.05em;flex:1}.topbar-right{display:flex;align-items:center;gap:var(--space-md)}.topbar-user-name{font-size:.875rem;font-weight:500;color:var(--color-text)}.topbar-role-badge{font-size:.75rem;font-weight:600;padding:2px var(--space-sm);border-radius:var(--radius-sm);background-color:#dbeafe;color:var(--color-primary-hover);text-transform:uppercase;letter-spacing:.05em}.topbar-role-badge.role-seller{background-color:#f0fdf4;color:#15803d}.btn-logout{font-size:.875rem;font-weight:500;padding:var(--space-xs) var(--space-sm);border-radius:var(--radius-sm);color:var(--color-danger);background:none;border:1px solid var(--color-danger);cursor:pointer;transition:background-color .15s,color .15s;white-space:nowrap}.btn-logout:hover:not(:disabled){background-color:var(--color-danger);color:#fff}.app-sidebar{position:fixed;top:var(--topbar-height);left:0;width:var(--sidebar-width);height:calc(100vh - var(--topbar-height));background-color:var(--color-sidebar-bg);overflow-y:auto;z-index:90;transition:transform .25s ease;display:flex;flex-direction:column}.sidebar-nav{display:flex;flex-direction:column;padding:var(--space-md) 0;flex:1}.sidebar-nav-link{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-md);color:var(--color-sidebar-text);text-decoration:none;font-size:.9375rem;font-weight:400;transition:background-color .15s,color .15s;border-left:3px solid transparent}.sidebar-nav-link:hover{background-color:var(--color-sidebar-hover);color:#fff;text-decoration:none}.sidebar-nav-link.active{background-color:#2563eb26;color:#fff;border-left-color:var(--color-sidebar-active);font-weight:500}.sidebar-nav-icon{flex-shrink:0;opacity:.85}.sidebar-backdrop{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background-color:#00000080;z-index:85}.app-main{flex:1;margin-top:var(--topbar-height);min-height:calc(100vh - var(--topbar-height))}@media (min-width: 768px){.topbar-menu-btn{display:none}.app-sidebar{transform:translate(0)!important}.sidebar-backdrop{display:none!important}.app-main{margin-left:var(--sidebar-width)}}@media (max-width: 767px){.topbar-menu-btn{display:flex}.app-sidebar{transform:translate(-100%)}.app-sidebar.sidebar-open{transform:translate(0)}.sidebar-backdrop.backdrop-open{display:block}.app-main{margin-left:0}}.page-content{padding:24px;max-width:1100px}.page-header{display:flex;align-items:center;gap:16px;margin-bottom:20px}.page-title{font-size:1.5rem;font-weight:700;color:var(--color-text-primary);margin:0 0 20px}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.badge-open{background:#dcfce7;color:#15803d}.badge-closed{background:#f1f5f9;color:#64748b}.filter-tabs{display:flex;gap:4px;margin-bottom:20px;border-bottom:1px solid var(--color-border, #e2e8f0)}.filter-tab{background:none;border:none;border-bottom:2px solid transparent;padding:8px 16px;margin-bottom:-1px;cursor:pointer;font-size:.875rem;font-weight:500;color:var(--color-text-secondary, #64748b);transition:color .15s,border-color .15s}.filter-tab:hover{color:var(--color-primary, #2563eb)}.filter-tab.active{color:var(--color-primary, #2563eb);border-bottom-color:var(--color-primary, #2563eb)}.conversations-table{width:100%;border-collapse:collapse;font-size:.875rem}.conversations-table th{text-align:left;padding:10px 12px;font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-secondary, #64748b);border-bottom:2px solid var(--color-border, #e2e8f0)}.conversations-table td{padding:12px;border-bottom:1px solid var(--color-border, #e2e8f0);color:var(--color-text-primary, #1e293b);vertical-align:middle}.conversation-row{cursor:pointer;transition:background .1s}.conversation-row:hover{background:var(--color-surface-hover, #f8fafc)}.conversation-row:focus{outline:2px solid var(--color-primary, #2563eb);outline-offset:-2px}.contact-phone{font-weight:500}.contact-wa-id{color:var(--color-text-secondary, #64748b);font-size:.8rem}.pagination{display:flex;align-items:center;gap:16px;margin-top:20px;padding-top:16px;border-top:1px solid var(--color-border, #e2e8f0)}.btn-pagination{background:var(--color-surface, #fff);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);padding:6px 14px;font-size:.875rem;cursor:pointer;color:var(--color-text-primary, #1e293b);transition:background .15s}.btn-pagination:hover:not(:disabled){background:var(--color-surface-hover, #f8fafc)}.btn-pagination:disabled{opacity:.4;cursor:not-allowed}.pagination-page{color:var(--color-text-secondary, #64748b);font-size:.875rem}.loading-spinner{display:flex;flex-direction:column;align-items:center;gap:12px;padding:48px 0}.spinner-ring{display:block;width:32px;height:32px;border:3px solid var(--color-border, #e2e8f0);border-top-color:var(--color-primary, #2563eb);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.spinner-label{font-size:.875rem;color:var(--color-text-secondary, #64748b)}.error-banner{display:flex;align-items:center;gap:10px;padding:12px 16px;background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius, 8px);color:#dc2626;font-size:.875rem;margin:16px 0}.error-banner-icon{font-size:1rem}.empty-state{display:flex;flex-direction:column;align-items:center;gap:8px;padding:48px 0;color:var(--color-text-secondary, #64748b);text-align:center}.empty-state-icon{font-size:2rem}.empty-state p{margin:0;font-size:.875rem}.btn-back{background:none;border:none;color:var(--color-primary, #2563eb);cursor:pointer;font-size:.875rem;padding:0;margin-bottom:16px;display:inline-flex;align-items:center;gap:4px}.btn-back:hover{text-decoration:underline}.detail-header{display:flex;align-items:center;gap:12px;margin-bottom:24px}.detail-header .page-title{margin:0}.detail-card{background:var(--color-surface, #fff);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);padding:20px 24px;margin-bottom:24px}.detail-list{margin:0;display:grid;grid-template-columns:1fr;gap:0}.detail-row{display:grid;grid-template-columns:180px 1fr;gap:8px;padding:10px 0;border-bottom:1px solid var(--color-border, #e2e8f0)}.detail-row:last-child{border-bottom:none}.detail-row dt{font-weight:600;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-secondary, #64748b);padding-top:1px}.detail-row dd{margin:0;font-size:.875rem;color:var(--color-text-primary, #1e293b)}.detail-section{margin-bottom:24px}.section-title{font-size:1rem;font-weight:700;color:var(--color-text-primary, #1e293b);margin:0 0 12px}.history-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:8px}.history-entry{display:flex;gap:12px;font-size:.875rem;padding:10px 12px;background:var(--color-surface, #fff);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px)}.history-time{color:var(--color-text-secondary, #64748b);white-space:nowrap;min-width:160px}.history-detail{color:var(--color-text-primary, #1e293b)}.history-actor{color:var(--color-text-secondary, #64748b)}.history-reason{color:var(--color-text-secondary, #64748b);font-style:italic}.not-found-message{text-align:center;padding:64px 24px}.not-found-message h2{font-size:1.25rem;font-weight:700;color:var(--color-text-primary, #1e293b);margin:0 0 8px}.not-found-message p{color:var(--color-text-secondary, #64748b);margin:0 0 24px;font-size:.875rem}.availability-available{background:#dcfce7;color:#15803d}.availability-away{background:#fef9c3;color:#ca8a04}.availability-offline{background:#f1f5f9;color:#64748b}.dashboard-grid{display:grid;grid-template-columns:260px 1fr;gap:20px;align-items:start}@media (max-width: 768px){.dashboard-grid{grid-template-columns:1fr}}.dashboard-card{background:var(--color-surface, #fff);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);padding:20px}.dashboard-card-wide{grid-column:2}@media (max-width: 768px){.dashboard-card-wide{grid-column:1}}.dashboard-card-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-secondary, #64748b);margin:0 0 8px}.dashboard-card-value{font-size:2rem;font-weight:700;color:var(--color-primary, #2563eb);margin:0 0 12px}.dashboard-availability{margin-top:4px}.dashboard-seller-list{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}.dashboard-seller-item{display:flex;flex-direction:column;gap:2px;padding:6px 0;border-bottom:1px solid var(--color-border, #e2e8f0);font-size:.875rem}.dashboard-seller-item:last-child{border-bottom:none}.seller-name{font-weight:500;color:var(--color-text-primary, #1e293b)}.seller-username{font-size:.8rem;color:var(--color-text-secondary, #64748b)}.dashboard-conv-list{list-style:none;margin:8px 0 0;padding:0;display:flex;flex-direction:column;gap:0}.dashboard-conv-item{display:flex;align-items:center;gap:12px;padding:10px 8px;border-bottom:1px solid var(--color-border, #e2e8f0);cursor:pointer;font-size:.875rem;transition:background .1s;border-radius:4px}.dashboard-conv-item:last-child{border-bottom:none}.dashboard-conv-item:hover{background:var(--color-surface-hover, #f8fafc)}.conv-phone{font-weight:500;color:var(--color-text-primary, #1e293b);flex:1}.conv-activity{color:var(--color-text-secondary, #64748b);font-size:.8rem;white-space:nowrap}.sellers-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;align-items:start}@media (max-width: 768px){.sellers-layout{grid-template-columns:1fr}}.sellers-table{width:100%;border-collapse:collapse;font-size:.875rem}.sellers-table th{text-align:left;padding:10px 12px;font-weight:600;font-size:.75rem;text-transform:uppercase;letter-spacing:.04em;color:var(--color-text-secondary, #64748b);border-bottom:2px solid var(--color-border, #e2e8f0)}.sellers-table td{padding:12px;border-bottom:1px solid var(--color-border, #e2e8f0);color:var(--color-text-primary, #1e293b);vertical-align:middle}.seller-row{cursor:pointer;transition:background .1s}.seller-row:hover{background:var(--color-surface-hover, #f8fafc)}.seller-row.selected{background:#eff6ff}.seller-row:focus{outline:2px solid var(--color-primary, #2563eb);outline-offset:-2px}.seller-username{color:var(--color-text-secondary, #64748b);font-size:.8rem}.seller-detail-panel{background:var(--color-surface, #fff);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);padding:20px 24px;position:sticky;top:24px}.seller-username-detail{color:var(--color-text-secondary, #64748b);font-size:.875rem;margin:0 0 16px}.action-buttons{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}.btn-action{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border:1px solid var(--color-primary, #2563eb);border-radius:var(--radius, 8px);background:var(--color-primary, #2563eb);color:#fff;font-size:.875rem;font-weight:500;cursor:pointer;transition:opacity .15s,background .15s;white-space:nowrap}.btn-action:hover:not(:disabled){opacity:.87}.btn-action:disabled{opacity:.5;cursor:not-allowed}.btn-action--secondary{background:transparent;color:var(--color-primary, #2563eb)}.btn-action--secondary:hover:not(:disabled){background:var(--color-primary-hover-bg, #eff6ff);opacity:1}.btn-action--danger{background:#dc2626;border-color:#dc2626;color:#fff}.btn-action--danger:hover:not(:disabled){background:#b91c1c;opacity:1}.btn-action--active{background:#15803d;border-color:#15803d;cursor:default}.reply-form{display:flex;flex-direction:column;gap:10px}.reply-textarea{resize:vertical;min-height:80px;font-size:.875rem;line-height:1.5;padding:10px 12px;border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);background:var(--color-surface, #fff);color:var(--color-text-primary, #1e293b);width:100%}.reply-textarea:focus{outline:2px solid var(--color-primary, #2563eb);outline-offset:0;border-color:var(--color-primary, #2563eb)}.reply-send{align-self:flex-end;width:auto;min-width:100px;margin-top:0}.message-thread{display:flex;flex-direction:column;gap:10px;padding:12px;background:var(--color-bg, #f8f9fb);border:1px solid var(--color-border, #e2e8f0);border-radius:var(--radius, 8px);max-height:480px;overflow-y:auto}.message-row{display:flex}.message-row--in{justify-content:flex-start}.message-row--out{justify-content:flex-end}.message-bubble{max-width:72%;padding:10px 14px;border-radius:14px;word-break:break-word}.message-bubble--in{background:#fff;border:1px solid var(--color-border, #e2e8f0);border-bottom-left-radius:4px}.message-bubble--out{background:#dcfce7;border:1px solid #bbf7d0;border-bottom-right-radius:4px}.message-text{margin:0 0 6px;font-size:.9rem;line-height:1.45;color:var(--color-text-primary, #1e293b);white-space:pre-wrap}.message-text:last-child{margin-bottom:0}.message-text--media{color:var(--color-text-secondary, #64748b);font-style:italic}.message-meta{display:flex;align-items:center;gap:8px;margin-top:4px}.message-time,.message-status{font-size:.7rem;color:var(--color-text-secondary, #64748b);white-space:nowrap}.message-status--failed{color:#dc2626}.text-muted{color:var(--color-text-secondary, #64748b);font-size:.875rem}.text-error{color:#dc2626;font-size:.875rem}.message-image-wrapper{max-width:320px}.message-image{display:block;width:100%;height:auto;max-height:320px;object-fit:contain;border-radius:8px}.btn-secondary{display:inline-flex;align-items:center;gap:var(--space-xs);padding:var(--space-sm) var(--space-md);background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.875rem;font-weight:500;cursor:pointer;transition:background .15s,border-color .15s;text-decoration:none}.btn-secondary:hover{background:var(--color-bg);border-color:var(--color-text-muted);text-decoration:none}.btn-sm{padding:var(--space-xs) var(--space-sm)!important;font-size:.8125rem!important;border-radius:var(--radius-sm)!important}.btn-xs{padding:2px var(--space-xs)!important;font-size:.75rem!important;border-radius:var(--radius-sm)!important}.sla-breached{border-left:3px solid #dc2626!important}.sla-alerted{border-left:3px solid #f59e0b!important}.ws-layout{display:flex;height:calc(100vh - var(--topbar-height));overflow:hidden;background:#e9edef}.ws-left{width:360px;flex-shrink:0;display:flex;flex-direction:column;overflow:hidden;border-right:1px solid #e9edef;background:#fff}.ws-sidebar-header{background:#f0f2f5;flex-shrink:0;padding:10px 16px 8px;display:flex;align-items:center;justify-content:space-between;min-height:59px}.ws-sidebar-title{font-size:1.0625rem;font-weight:700;color:#111b21;letter-spacing:.01em}.ws-filter-chips{display:flex;gap:5px;padding:6px 16px 8px;overflow-x:auto;scrollbar-width:none;background:#f0f2f5;flex-shrink:0}.ws-filter-chips::-webkit-scrollbar{display:none}.ws-filter-chip{flex-shrink:0;padding:4px 14px;border-radius:16px;font-size:.8125rem;font-weight:500;border:none;cursor:pointer;transition:background .15s,color .15s;background:#e9edef;color:#54656f;white-space:nowrap}.ws-filter-chip:hover{background:#d9dee1}.ws-filter-chip.active{background:var(--color-primary);color:#fff}.ws-filter-tabs,.ws-filter-tab{display:none}.ws-search-wrap{padding:6px 12px 8px;background:#f0f2f5;flex-shrink:0}.ws-search-input{width:100%;padding:8px 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