:root{--sidebar-width:196px;--topbar-height:46px;--right-panel-width:232px;--app-bg:#0f0f0f;--sidebar-bg:#0a0a0a;--main-bg:#111;--left-panel-bg:#0f0f0f;--right-panel-bg:#111;--divider:#ffffff0f;--border:#ffffff14;--text-primary:#ffffffd9;--text-secondary:#ffffff73;--text-muted:#ffffff38;--primary-blue:#2563eb;--blue-text:#60a5fa;--success-green:#22c55e;--amber:#d97706;--error-red:#ef4444;--purple:#8b5cf6;--orange:#f97316;--input-bg:#ffffff0a;--input-border:#ffffff17;--card-bg:transparent;--card-hover:#ffffff08;--sidebar-text:#ffffff80;--sidebar-text-active:#fff;--sidebar-hover:#ffffff0d;--sidebar-active:#ffffff12;--status-new-bg:#2563eb1f;--status-new-border:#2563eb4d;--status-new-text:#60a5fa;--status-diagnosing-bg:#8b5cf61f;--status-diagnosing-border:#8b5cf64d;--status-diagnosing-text:#a78bfa;--status-kva-bg:#d977061f;--status-kva-border:#d977064d;--status-kva-text:#fbbf24;--status-progress-bg:#f973161f;--status-progress-border:#f973164d;--status-progress-text:#fb923c;--status-ready-bg:#22c55e1f;--status-ready-border:#22c55e4d;--status-ready-text:#4ade80;--status-closed-bg:#ffffff0f;--status-closed-border:#ffffff1f;--status-closed-text:#ffffff80}.light{--app-bg:#f5f5f7;--sidebar-bg:#111;--main-bg:#fff;--left-panel-bg:#f5f5f7;--right-panel-bg:#fff;--divider:#00000012;--border:#00000014;--text-primary:#111;--text-secondary:#6b7280;--text-muted:#9ca3af;--input-bg:#fff;--input-border:#0000001a;--card-hover:#00000005;--status-new-bg:#2563eb14;--status-diagnosing-bg:#8b5cf614;--status-kva-bg:#d9770614;--status-progress-bg:#f9731614;--status-ready-bg:#22c55e14;--status-closed-bg:#0000000a;--status-closed-text:#6b7280}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background-color:var(--app-bg);color:var(--text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:Outfit,-apple-system,BlinkMacSystemFont,sans-serif;font-size:12px;line-height:1.5;transition:background-color 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var(--divider);z-index:100;flex-direction:column;flex-shrink:0;height:100vh;display:flex;position:fixed;top:0;left:0}.app-main{margin-left:var(--sidebar-width);background-color:var(--main-bg);flex-direction:column;flex:1;min-height:100vh;display:flex}.app-topbar{height:var(--topbar-height);background-color:var(--main-bg);border-bottom:1px solid var(--divider);flex-shrink:0;justify-content:space-between;align-items:center;padding:0 18px;display:flex}.app-content{flex:1;display:flex;overflow:hidden}.content-left{background-color:var(--left-panel-bg);flex:1;padding:14px 18px;overflow-y:auto}.content-right{width:var(--right-panel-width);background-color:var(--right-panel-bg);border-left:1px solid var(--divider);flex-shrink:0;overflow-y:auto}.content-full{background-color:var(--left-panel-bg);flex:1;padding:14px 18px;overflow-y:auto}.sidebar-header{border-bottom:1px solid var(--divider);padding:16px 14px}.sidebar-logo{align-items:center;gap:8px;margin-bottom:4px;display:flex}.sidebar-logo-icon{background-color:var(--primary-blue);border-radius:5px;justify-content:center;align-items:center;width:24px;height:24px;display:flex}.sidebar-logo-text{color:#fff;letter-spacing:-.02em;font-size:14px;font-weight:700}.sidebar-slogan{color:#ffffff2e;padding-left:33px;font-size:8px;line-height:1.3}.sidebar-location{cursor:pointer;background:#ffffff0a;border:1px solid #ffffff12;border-radius:7px;align-items:center;gap:7px;margin-top:12px;padding:7px 10px;transition:background .15s;display:flex}.sidebar-location:hover{background:#ffffff0f}.sidebar-location-dot{background-color:var(--success-green);border-radius:50%;width:6px;height:6px}.sidebar-location-name{color:#ffffffb3;flex:1;font-size:10px;font-weight:500}.sidebar-location-chevron{color:#ffffff4d}.nav-group{margin-bottom:16px}.nav-group-label{color:#ffffff29;text-transform:uppercase;letter-spacing:.1em;margin-bottom:6px;padding:0 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var(--purple));color:#fff;cursor:pointer;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;font-size:10px;font-weight:600;display:flex}.page-header{border-bottom:1px solid var(--divider);background:var(--main-bg);padding:15px 18px}.page-header-row1{align-items:center;gap:12px;margin-bottom:8px;display:flex}.page-header-ref{color:var(--text-primary);font-family:DM Mono,monospace;font-size:21px;font-weight:500}.page-header-price{color:var(--blue-text);margin-left:auto;font-family:DM Mono,monospace;font-size:21px;font-weight:500}.page-header-row2{justify-content:space-between;align-items:center;gap:12px;display:flex}.page-header-meta{color:var(--text-muted);font-size:10px}.page-header-actions{align-items:center;gap:6px;display:flex}.action-btn{border-radius:5px;align-items:center;gap:5px;padding:5px 9px;font-size:10px;font-weight:500;transition:all .15s;display:inline-flex}.action-btn-subtle{color:var(--text-secondary);border:1px solid var(--border);background:0 0}.action-btn-subtle:hover{background:var(--card-hover);color:var(--text-primary)}.action-btn-blue{color:var(--blue-text);background:#2563eb1f;border:1px solid #2563eb33}.action-btn-blue:hover{background:#2563eb2e}.action-btn-primary{background:var(--primary-blue);color:#fff}.action-btn-primary:hover{background:#1d4ed8}.status-btn{cursor:pointer;border-radius:6px;align-items:center;gap:6px;padding:5px 10px;font-size:11px;font-weight:500;transition:all .15s;display:inline-flex}.status-btn-new{background:var(--status-new-bg);border:1px solid var(--status-new-border);color:var(--status-new-text)}.status-btn-diagnosing{background:var(--status-diagnosing-bg);border:1px solid var(--status-diagnosing-border);color:var(--status-diagnosing-text)}.status-btn-kva{background:var(--status-kva-bg);border:1px solid var(--status-kva-border);color:var(--status-kva-text)}.status-btn-progress{background:var(--status-progress-bg);border:1px solid 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spin{to{transform:rotate(360deg)}}.app-layout{min-height:100vh;display:flex}.sidebar{width:var(--sidebar-width);background-color:var(--sidebar-bg);z-index:100;flex-direction:column;display:flex;position:fixed;top:0;bottom:0;left:0}.sidebar-logo{border-bottom:1px solid #ffffff1a;padding:24px 24px 20px}.sidebar-logo h1{color:#fff;letter-spacing:-.5px;font-family:Outfit,sans-serif;font-size:18px;font-weight:700}.sidebar-nav{flex:1;padding:12px;overflow-y:auto}.nav-item{height:40px;color:var(--sidebar-text);cursor:pointer;background:0 0;border:none;border-radius:8px;align-items:center;gap:12px;width:100%;margin-bottom:2px;padding:0 12px;font-size:14px;font-weight:500;text-decoration:none;transition:all .15s;display:flex}.nav-item:hover,.nav-item.active{background-color:var(--sidebar-hover);color:var(--sidebar-text-active)}.nav-item svg{flex-shrink:0;width:20px;height:20px}.sidebar-footer{border-top:1px solid #ffffff1a;padding:16px}.sidebar-footer 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.status-badge.rejected{background-color:#dc262633}.btn{cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;height:36px;padding:8px 16px;font-family:Outfit,sans-serif;font-size:13px;font-weight:600;transition:all .15s;display:inline-flex}.btn-primary{background-color:var(--color-primary);color:#fff}.btn-primary:hover{background-color:var(--color-primary-dark)}.btn-secondary{background-color:var(--color-surface);color:var(--color-text-primary);border:1px solid var(--color-border)}.btn-secondary:hover{background-color:var(--color-background)}.btn-danger{background-color:var(--color-error);color:#fff}.btn-danger:hover{background-color:#b91c1c}.btn-success{background-color:var(--color-success);color:#fff}.btn-success:hover{background-color:#15803d}.btn-ghost{color:var(--color-text-secondary);background:0 0;border:none}.btn-ghost:hover{background-color:var(--color-background);color:var(--color-text-primary)}.btn-sm{height:28px;padding:4px 8px;font-size:12px}.btn-lg{height:44px;padding:12px 24px;font-size:15px}.form-group{margin-bottom:16px}.form-label{color:var(--color-text-secondary);margin-bottom:6px;font-size:13px;font-weight:600;display:block}.form-input{border:1px solid var(--color-border);background-color:var(--color-surface);width:100%;color:var(--color-text-primary);border-radius:8px;padding:10px 12px;font-family:Outfit,sans-serif;font-size:14px;transition:border-color .15s,box-shadow .15s}.form-input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px #2563eb1a}.form-input::placeholder{color:var(--color-text-tertiary)}textarea.form-input{resize:vertical;min-height:100px}.tabs{background-color:var(--color-background);border:1px solid var(--color-border);border-radius:8px;gap:4px;margin-bottom:24px;padding:4px;display:flex}.tab{color:var(--color-text-secondary);cursor:pointer;background:0 0;border:none;border-radius:6px;padding:8px 16px;font-size:14px;font-weight:500;transition:all .15s}.tab:hover{color:var(--color-text-primary)}.tab.active{background-color:var(--color-surface);color:var(--color-text-primary);box-shadow:var(--shadow-sm)}.modal-overlay{z-index:1000;background-color:#00000080;justify-content:center;align-items:center;padding:20px;display:flex;position:fixed;inset:0}.modal{background-color:var(--color-surface);border-radius:12px;width:100%;max-width:500px;max-height:90vh;overflow-y:auto}.modal-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;padding:20px 24px;display:flex}.modal-title{color:var(--color-text-primary);font-size:18px;font-weight:700}.modal-close{width:32px;height:32px;color:var(--color-text-tertiary);cursor:pointer;background:0 0;border:none;border-radius:8px;justify-content:center;align-items:center;transition:all .15s;display:flex}.modal-close:hover{background-color:var(--color-background);color:var(--color-text-primary)}.modal-body{padding:24px}.modal-footer{border-top:1px solid var(--color-border);justify-content:flex-end;gap:12px;padding:16px 24px;display:flex}.chat-layout{height:calc(100vh - var(--header-height) - 48px);background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:12px;grid-template-columns:300px 1fr;gap:0;display:grid;overflow:hidden}.chat-list{border-right:1px solid var(--color-border);overflow-y:auto}.chat-list-header{border-bottom:1px solid var(--color-border);padding:16px;font-size:14px;font-weight:600}.chat-item{border-bottom:1px solid var(--color-border-light);cursor:pointer;gap:12px;padding:12px 16px;transition:background-color .15s;display:flex}.chat-item:hover{background-color:var(--color-background)}.chat-item.active{background-color:var(--color-primary);color:#fff}.chat-item.active .chat-item-subtitle,.chat-item.active .chat-item-time{color:#fffc}.chat-item-content{flex:1;min-width:0}.chat-item-header{justify-content:space-between;align-items:center;margin-bottom:4px;display:flex}.chat-item-title{white-space:nowrap;text-overflow:ellipsis;font-size:14px;font-weight:600;overflow:hidden}.chat-item-time{color:var(--color-text-tertiary);font-size:11px}.chat-item-subtitle{color:var(--color-text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:12px;overflow:hidden}.chat-unread-badge{background-color:var(--color-error);color:#fff;border-radius:50px;justify-content:center;align-items:center;min-width:20px;height:20px;padding:0 6px;font-size:11px;font-weight:600;display:flex}.chat-window{flex-direction:column;display:flex}.chat-window-header{border-bottom:1px solid var(--color-border);padding:16px 20px}.chat-messages{flex-direction:column;flex:1;gap:12px;padding:20px;display:flex;overflow-y:auto}.message{border-radius:12px;max-width:70%;padding:10px 14px;font-size:14px}.message.own{background-color:var(--color-primary);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}.message.other{background-color:var(--color-background);border-bottom-left-radius:4px;align-self:flex-start}.message-time{opacity:.7;text-align:right;margin-top:4px;font-size:10px}.message-image{cursor:pointer;border-radius:8px;max-width:200px}.chat-input{border-top:1px solid var(--color-border);background-color:var(--color-background);gap:8px;padding:16px;display:flex}.chat-input input{border:1px solid var(--color-border);background-color:var(--color-surface);color:var(--color-text-primary);border-radius:50px;flex:1;padding:10px 16px;font-size:14px}.chat-input input:focus{border-color:var(--color-primary);outline:none}.chat-empty{color:var(--color-text-tertiary);flex:1;justify-content:center;align-items:center;display:flex}.loading{color:var(--color-text-tertiary);justify-content:center;align-items:center;padding:48px;display:flex}.spinner{border:2px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;width:24px;height:24px;animation:.8s linear infinite spin}.empty-state{text-align:center;color:var(--color-text-tertiary);padding:48px}.empty-state svg{opacity:.5;width:64px;height:64px;margin-bottom:16px}.empty-state h3{color:var(--color-text-secondary);margin-bottom:8px;font-size:16px;font-weight:600}.login-page{background-color:var(--color-background);justify-content:center;align-items:center;min-height:100vh;display:flex}.login-card{background-color:var(--color-surface);border:1px solid var(--color-border);border-radius:16px;width:100%;max-width:400px;padding:40px}.login-logo{text-align:center;margin-bottom:32px}.login-logo h1{color:var(--color-text-primary);font-family:Outfit,sans-serif;font-size:24px;font-weight:700}.login-logo p{color:var(--color-text-secondary);margin-top:8px;font-size:14px}.login-error{color:#dc2626;background-color:#fef2f2;border-radius:8px;margin-bottom:16px;padding:12px 16px;font-size:14px}.dark .login-error{color:#fca5a5;background-color:#dc262633}@media (width<=1024px){.sidebar{display:none}.main-content{margin-left:0}.chat-layout{grid-template-columns:1fr}.chat-list{display:none}}