:root{--c-primary: #6C5CE7;--c-primary-light: #A29BFE;--c-primary-dark: #5A4BD1;--c-bg: #0F0F14;--c-bg-card: #1A1A24;--c-bg-elevated: #252536;--c-bg-hover: #22222E;--c-bg-active: #2A2A38;--c-surface: #252532;--c-border: #2E2E3E;--c-text: #E8E8F0;--c-text-dim: #8888A0;--c-text-muted: #5E5E7A;--c-success: #00D68F;--c-warning: #FFB800;--c-danger: #FF4757;--c-info: #3B82F6;--c-online: #00D68F;--c-away: #FFB800;--c-offline: #5E5E7A;--font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--sp-xs: 4px;--sp-sm: 8px;--sp-md: 16px;--sp-lg: 24px;--sp-xl: 32px;--sp-2xl: 48px;--r-sm: 6px;--r-md: 10px;--r-lg: 16px;--r-full: 9999px;--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 12px rgba(0, 0, 0, .4);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .5);--t-fast: .15s ease;--t-normal: .25s ease}[data-theme=light]{--c-bg: #F5F5FA;--c-bg-card: #FFFFFF;--c-bg-elevated: #FFFFFF;--c-bg-hover: #EBEBF2;--c-bg-active: #E0E0EC;--c-surface: #F0F0F8;--c-border: #D8D8E8;--c-text: #1A1A2E;--c-text-dim: #6B6B88;--c-text-muted: #9090AA;--c-shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .08);--shadow-md: 0 4px 12px rgba(0, 0, 0, .1);--shadow-lg: 0 8px 32px rgba(0, 0, 0, .12)}[data-theme=light] .sidebar-logo,[data-theme=light] .login-title{color:#434343}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;width:100%}body{font-family:var(--font);background:var(--c-bg);color:var(--c-text);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:var(--c-primary-light);text-decoration:none}a:hover{color:var(--c-primary)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--c-border);border-radius:var(--r-full)}::-webkit-scrollbar-thumb:hover{background:var(--c-text-muted)}.app-layout{display:flex;height:100vh;overflow:hidden}.sidebar{width:260px;background:var(--c-bg-card);border-right:1px solid var(--c-border);display:flex;flex-direction:column;flex-shrink:0;transition:width .25s ease;overflow:hidden}.sidebar.collapsed{width:60px}.sidebar.collapsed .sidebar-header{padding:var(--sp-md) var(--sp-sm);display:flex;justify-content:center}.sidebar.collapsed .sidebar-nav{padding:var(--sp-md) var(--sp-xs)}.sidebar.collapsed .nav-item{justify-content:center;padding:var(--sp-sm);gap:0}.sidebar.collapsed .sidebar-footer{padding:var(--sp-sm) var(--sp-xs)}.sidebar.collapsed .agent-profile{justify-content:center;padding:var(--sp-sm)}.sidebar.collapsed .agent-name,.sidebar.collapsed .agent-status-text{display:none}.sidebar-header{padding:var(--sp-lg);border-bottom:1px solid var(--c-border)}.sidebar-logo{font-size:20px;font-weight:700;color:#fff;letter-spacing:-.5px}.sidebar-nav{flex:1;padding:var(--sp-md);display:flex;flex-direction:column;gap:var(--sp-xs)}.nav-item{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-sm) var(--sp-md);border-radius:var(--r-md);color:var(--c-text-dim);cursor:pointer;transition:all var(--t-fast);font-size:14px;font-weight:500;border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--c-bg-hover);color:var(--c-text)}.nav-item.active{background:var(--c-primary);color:#fff}.nav-item .badge{margin-left:auto;background:var(--c-danger);color:#fff;font-size:11px;font-weight:600;padding:2px 7px;border-radius:var(--r-full);min-width:20px;text-align:center}.sidebar-footer{padding:var(--sp-md);border-top:1px solid var(--c-border)}.agent-profile{display:flex;align-items:center;gap:var(--sp-md);padding:var(--sp-sm) var(--sp-md);border-radius:var(--r-md);cursor:pointer;transition:background var(--t-fast)}.agent-profile:hover{background:var(--c-bg-hover)}.agent-avatar{width:36px;height:36px;border-radius:var(--r-full);background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:600;color:#fff;flex-shrink:0}.agent-name{font-size:13px;font-weight:500}.agent-status-text{font-size:11px;color:var(--c-text-dim)}.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden}.conv-panel{width:340px;border-right:1px solid var(--c-border);display:flex;flex-direction:column;flex-shrink:0}.conv-panel-header{padding:var(--sp-md) var(--sp-lg);border-bottom:1px solid var(--c-border);display:flex;align-items:center;justify-content:space-between}.conv-panel-title{font-size:16px;font-weight:600}.conv-list{flex:1;overflow-y:auto}.conv-item{display:flex;gap:var(--sp-md);padding:var(--sp-md) var(--sp-lg);cursor:pointer;transition:background var(--t-fast);border-bottom:1px solid var(--c-border);position:relative}.conv-item:hover{background:var(--c-bg-hover)}.conv-item.active{background:var(--c-bg-active);border-left:3px solid var(--c-primary)}.conv-avatar{width:40px;height:40px;border-radius:var(--r-full);background:var(--c-surface);display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0;position:relative}.visitor-status-dot{position:absolute;bottom:0;right:0;width:10px;height:10px;border-radius:50%;border:2px solid var(--c-bg);transition:background .3s}.visitor-status-dot.online{background:#2ecc71;box-shadow:0 0 4px #2ecc7180}.visitor-status-dot.offline{background:#95a5a6}.visitor-status-indicator{display:inline-flex;align-items:center;gap:4px;font-weight:500}.visitor-status-indicator.online{color:#2ecc71}.visitor-status-indicator.offline{color:#95a5a6}.visitor-status-dot-sm{width:6px;height:6px;border-radius:50%;display:inline-block}.visitor-status-indicator.online .visitor-status-dot-sm{background:#2ecc71;box-shadow:0 0 3px 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var(--c-border);display:flex;align-items:center;justify-content:space-between}.chat-header-info{display:flex;align-items:center;gap:var(--sp-md)}.chat-visitor-name{font-size:15px;font-weight:600}.chat-visitor-detail{font-size:12px;color:var(--c-text-dim)}.chat-actions{display:flex;gap:var(--sp-sm)}.btn-icon{width:36px;height:36px;border-radius:var(--r-md);border:1px solid var(--c-border);background:transparent;color:var(--c-text-dim);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--t-fast);font-size:16px}.btn-icon:hover{background:var(--c-bg-hover);color:var(--c-text)}.chat-messages{flex:1;overflow-y:auto;padding:var(--sp-lg);display:flex;flex-direction:column;gap:var(--sp-md)}.msg-bubble{max-width:70%;padding:var(--sp-sm) var(--sp-md);border-radius:var(--r-lg);font-size:14px;line-height:1.5;animation:msgSlideIn .25s ease}@keyframes msgSlideIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.msg-visitor{align-self:flex-start;background:var(--c-surface);border-bottom-left-radius:var(--sp-xs)}.msg-agent{align-self:flex-end;background:var(--c-primary);color:#fff;border-bottom-right-radius:var(--sp-xs)}.msg-note{align-self:flex-end;background:#ffb30026;color:#ffb300;border:1px dashed rgba(255,179,0,.3);border-bottom-right-radius:var(--sp-xs)}.msg-note .msg-time{color:#ffb30080}.msg-time{font-size:10px;color:var(--c-text-muted);margin-top:var(--sp-xs)}.msg-agent .msg-time{color:#fff9}.msg-sender{font-size:11px;font-weight:600;color:var(--c-primary-light);margin-bottom:2px}.typing-indicator{align-self:flex-start;display:flex;gap:4px;padding:var(--sp-sm) var(--sp-md);background:var(--c-surface);border-radius:var(--r-lg);align-items:center}.typing-dot{width:6px;height:6px;border-radius:var(--r-full);background:var(--c-text-dim);animation:typingBounce 1.4s 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.1s}.replies-popup-item:last-child{border-bottom:none}.replies-popup-item:hover,.replies-popup-item.selected{background:var(--c-surface-hover)}.replies-popup-item.selected{border-left:3px solid var(--c-accent, #6C5CE7);padding-left:11px}.replies-popup-title{font-size:13px;font-weight:600;margin-bottom:3px;display:flex;align-items:center;gap:6px}.replies-popup-tag{font-size:11px;font-weight:700;color:var(--c-accent, #6C5CE7);background:#6c5ce71f;padding:1px 6px;border-radius:4px;font-family:monospace}.replies-popup-body{font-size:12px;color:var(--c-text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:500px}.replies-popup-empty{padding:16px;text-align:center;color:var(--c-text-dim);font-size:13px}.chat-input-area{padding:var(--sp-md) var(--sp-lg);border-top:1px solid var(--c-border);display:flex;gap:var(--sp-sm);align-items:center}.chat-input{flex:1;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-md);padding:var(--sp-sm) var(--sp-md);color:var(--c-text);font-family:var(--font);font-size:14px;resize:none;min-height:40px;max-height:120px;outline:none;transition:border-color var(--t-fast)}.chat-input:focus{border-color:var(--c-primary)}.chat-input::placeholder{color:var(--c-text-muted)}.btn-send{width:40px;height:40px;border-radius:var(--r-md);background:var(--c-primary);color:#fff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:18px;transition:all var(--t-fast);flex-shrink:0}.btn-send:hover{background:var(--c-primary-dark);transform:scale(1.05)}.btn-send:disabled{opacity:.4;cursor:not-allowed;transform:none}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:var(--c-bg)}.login-card{background:var(--c-bg-card);border:1px solid 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#00d68f00}}.visitor-meta{font-size:12px;color:var(--c-text-dim);display:flex;flex-direction:column;gap:var(--sp-xs)}.status-badge{display:inline-flex;align-items:center;gap:6px;padding:2px 10px;border-radius:var(--r-full);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.status-badge.open{background:#00d68f26;color:var(--c-success)}.status-badge.pending{background:#ffb80026;color:var(--c-warning)}.status-badge.closed{background:#5e5e7a26;color:var(--c-text-muted)}.empty-state{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:var(--sp-md);color:var(--c-text-muted)}.empty-state-icon{font-size:48px;opacity:.5}.empty-state-text{font-size:15px}.visitors-table{width:100%;border-collapse:collapse;background:var(--c-bg-card);border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-border)}.visitors-table th{text-align:left;padding:12px 16px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--c-text-muted);background:var(--c-surface);border-bottom:1px solid var(--c-border)}.visitors-table td{padding:12px 16px;border-bottom:1px solid var(--c-border);vertical-align:middle}.visitors-table tr:last-child td{border-bottom:none}.visitors-table tr:hover td{background:var(--c-bg-hover)}.visitor-row-clickable{cursor:pointer;transition:background var(--t-fast)}.visitor-row-clickable:hover td{background:var(--c-bg-active)!important}.visitor-row-clickable:active td{background:var(--c-primary-dark)!important}.visitor-info-panel{width:320px;border-left:1px solid var(--c-border);background:var(--c-bg-card);display:flex;flex-direction:column;overflow-y:auto;flex-shrink:0}.visitor-info-header{padding:24px 20px;text-align:center;border-bottom:1px solid var(--c-border)}.visitor-info-avatar{width:56px;height:56px;border-radius:var(--r-full);background:linear-gradient(135deg,var(--c-primary),var(--c-primary-light));display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;color:#fff;margin:0 auto 12px}.visitor-info-name{font-size:16px;font-weight:600}.visitor-info-fields{padding:16px 20px;border-bottom:1px solid var(--c-border);display:flex;flex-direction:column;gap:12px}.info-field label{display:block;font-size:11px;font-weight:600;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px}.info-field input,.info-field textarea{width:100%;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-sm);padding:8px 12px;color:var(--c-text);font-family:var(--font);font-size:13px;outline:none;transition:border-color var(--t-fast);resize:vertical}.info-field input:focus,.info-field textarea:focus{border-color:var(--c-primary)}.info-field input::placeholder,.info-field textarea::placeholder{color:var(--c-text-muted)}.visitor-info-meta{padding:16px 20px;display:flex;flex-direction:column;gap:8px}.meta-row{display:flex;justify-content:space-between;align-items:center;padding:4px 0}.meta-label{font-size:11px;font-weight:600;color:var(--c-text-muted);text-transform:uppercase;letter-spacing:.5px}.meta-value{font-size:13px;color:var(--c-text-dim)}.msg-bubble{position:relative}.msg-edit-trigger{position:absolute;top:4px;right:4px;width:24px;height:24px;border-radius:var(--r-sm);border:none;background:#0000004d;color:#ffffffb3;font-size:12px;cursor:pointer;display:none;align-items:center;justify-content:center;transition:all var(--t-fast)}.msg-bubble:hover .msg-edit-trigger{display:flex}.msg-edit-trigger:hover{background:#00000080;color:#fff}.msg-edit-area{display:flex;flex-direction:column;gap:6px}.msg-edit-input{background:#0003;border:1px solid rgba(255,255,255,.2);border-radius:var(--r-sm);padding:6px 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12px;font-size:13px;color:var(--c-text-dim);font-style:italic;max-width:300px;word-break:break-word}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.modal-content{background:var(--c-bg-card);border:1px solid var(--c-border);border-radius:var(--r-lg);padding:24px;width:100%;max-width:480px;box-shadow:var(--shadow-lg)}.modal-content h3{font-size:18px;font-weight:600}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.btn-secondary{padding:8px 16px;background:var(--c-surface);color:var(--c-text-dim);border:1px solid var(--c-border);border-radius:var(--r-sm);font-family:var(--font);font-size:13px;cursor:pointer;transition:all var(--t-fast)}.btn-secondary:hover{background:var(--c-bg-hover);color:var(--c-text)}.modal-content .btn-primary{width:auto;padding:8px 16px;margin-top:0}.msg-system{padding:2px 14px;margin:2px 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.15s;resize:vertical}.settings-input:focus{outline:none;border-color:var(--c-primary)}.settings-btn{padding:8px 16px;border-radius:8px;border:1px solid var(--c-border);background:var(--c-surface);color:var(--c-text);font-size:13px;font-weight:600;cursor:pointer;transition:all .15s}.settings-btn:hover{background:var(--c-surface-hover)}.settings-btn.primary{background:var(--c-primary);border-color:transparent;color:#fff}.settings-btn.primary:hover{opacity:.9}.settings-btn:disabled{opacity:.5;cursor:not-allowed}@keyframes fadeIn{0%{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}