:root{--accent: #0EA5E9;--accent-dark: #0284C7;--accent-light: #E0F2FE;--accent-text: #0369A1;--bg: #FAFAFA;--surface: #FFFFFF;--surface-raised: #FFFFFF;--surface-hover: #F5F5F5;--border: #E5E7EB;--border-light: #F0F0F0;--text-primary: #111111;--text-secondary: #666666;--text-muted: #AAAAAA;--text-on-accent: #FFFFFF;--status-green: #16A34A;--status-green-bg: #DCFCE7;--status-amber: #D97706;--status-amber-bg: #FEF3C7;--status-red: #DC2626;--status-red-bg: #FEE2E2;--status-blue: #2563EB;--status-blue-bg: #DBEAFE;--sidebar-bg: #FAFAFA;--sidebar-text: #666666;--sidebar-active-bg: var(--accent-light);--sidebar-active-text: var(--accent-dark);--sidebar-width: 220px;--sidebar-collapsed-width: 56px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 2px 8px rgba(0, 0, 0, .06);--radius: 8px;--radius-lg: 12px;--color-primary: var(--accent);--color-primary-hover: var(--accent-dark);--color-background: var(--bg);--color-surface: var(--surface);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-border: var(--border);--color-error: var(--status-red);--radius-input: 6px;--radius-card: var(--radius);--spacing-unit: 4px;--font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif}[data-theme=dark]{--bg: #0D1117;--surface: #161B22;--surface-raised: #21262D;--surface-hover: #30363D;--border: #30363D;--border-light: #21262D;--text-primary: #E6EDF3;--text-secondary: #8B949E;--text-muted: #484F58;--accent-light: #0C2D48;--accent-text: #79C0FF;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);--shadow-md: 0 2px 8px rgba(0, 0, 0, .5);--color-background: var(--bg);--color-surface: var(--surface);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-border: var(--border)}*,*:before,*:after{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-stack);background:var(--bg);color:var(--text-primary);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{text-decoration:none;color:inherit}img,svg{display:block;max-width:100%}button,input,textarea,select{font:inherit}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border-width:0}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background-color:var(--color-background);font-family:var(--font-stack)}.login-card{background:var(--color-surface);border-radius:var(--radius-card);border:1px solid var(--color-border);padding:calc(var(--spacing-unit) * 8);width:100%;max-width:400px;box-shadow:0 1px 3px #0000001a}.login-title{font-size:1.75rem;font-weight:700;color:var(--color-primary);text-align:center;margin:0 0 calc(var(--spacing-unit) * 1) 0}.login-subtitle{font-size:.875rem;color:var(--color-text-secondary);text-align:center;margin:0 0 calc(var(--spacing-unit) * 6) 0}.login-form{display:flex;flex-direction:column;gap:calc(var(--spacing-unit) * 4)}.form-field{display:flex;flex-direction:column;gap:calc(var(--spacing-unit) * 1)}.form-field label{font-size:.875rem;font-weight:500;color:var(--color-text-primary)}.form-field input{padding:calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 3);border:1px solid var(--color-border);border-radius:var(--radius-input);font-size:.875rem;font-family:var(--font-stack);color:var(--color-text-primary);background:var(--color-surface);outline:none;transition:border-color .15s ease}.form-field input:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px #0ea5e933}.form-field input::placeholder{color:var(--color-text-secondary)}.login-error{color:var(--color-error);font-size:.8125rem;padding:calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 3);background:#ef44440f;border-radius:var(--radius-input);border:1px solid rgba(239,68,68,.2)}.login-button{padding:calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 4);background-color:var(--color-primary);color:#fff;border:none;border-radius:var(--radius-input);font-size:.875rem;font-weight:500;font-family:var(--font-stack);cursor:pointer;transition:background-color .15s ease}.login-button:hover:not(:disabled){background-color:var(--color-primary-hover)}.login-button:disabled{opacity:.65;cursor:not-allowed}.dashboard{max-width:960px;margin:0 auto;padding:32px 40px 40px}.dashboard .page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.dashboard .page-title{font-size:22px;font-weight:700;color:var(--text-primary)}.dashboard .page-subtitle{font-size:13px;color:var(--text-muted);margin-top:2px}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px}.stat-card{background:var(--surface);border-radius:var(--radius-lg);padding:20px;border:1px solid var(--border-light);box-shadow:var(--shadow-sm);position:relative;overflow:hidden;transition:transform .15s,box-shadow .15s}.stat-value{font-size:26px;font-weight:800;color:var(--text-primary);line-height:1;letter-spacing:-.5px}.stat-label{font-size:11px;color:var(--text-muted);text-transform:uppercase;letter-spacing:.8px;margin-top:4px;font-weight:600}.section-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.section-title{font-size:15px;font-weight:700;color:var(--text-primary)}.design-cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.btn{padding:9px 18px;border:none;border-radius:var(--radius);font-size:13px;font-weight:600;cursor:pointer;transition:all 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svg{width:36px;height:36px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}.empty-state-title{font-size:20px;font-weight:700;color:var(--text-primary);margin-bottom:8px}.empty-state-desc{font-size:14px;color:var(--text-secondary);max-width:400px;margin-bottom:24px;line-height:1.6}.empty-state-hint{font-size:12px;color:var(--text-muted);margin-top:32px}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);display:flex;align-items:center;justify-content:center;z-index:1000}.modal{background:var(--surface);border-radius:var(--radius-lg);box-shadow:0 20px 60px #00000026,0 8px 24px #00000014;width:380px;max-width:90vw;overflow:hidden}.modal-body{padding:28px 24px 20px;text-align:center}.modal-footer{padding:16px 24px;border-top:1px solid var(--border-light);display:flex;justify-content:flex-end;gap:8px}.confirm-icon{width:52px;height:52px;border-radius:50%;background:var(--status-red-bg);color:var(--status-red);display:flex;align-items:center;justify-content:center;margin:0 auto 18px}.confirm-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2}.confirm-title{font-size:16px;font-weight:700;margin-bottom:8px}.confirm-desc{font-size:13px;color:var(--text-secondary);margin-bottom:4px}.dashboard-loading{display:flex;align-items:center;justify-content:center;padding:80px 40px;color:var(--text-muted);font-size:14px}.dashboard-skeleton-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.skeleton-card{background:linear-gradient(90deg,#f4f4f5 25%,#e8e8ec,#f4f4f5 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-lg, 10px);height:190px}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}.dashboard-error{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:80px 40px;text-align:center}.dashboard-error-message{color:var(--color-error, #EF4444);font-size:14px;margin-bottom:16px}@media (max-width: 768px){.dashboard{padding:24px 20px 40px}.dashboard .page-header{flex-direction:column;align-items:flex-start;gap:14px}.stats-row{grid-template-columns:repeat(2,1fr)}.design-cards-grid{grid-template-columns:1fr}}@media (min-width: 769px) and (max-width: 1024px){.design-cards-grid{grid-template-columns:repeat(2,1fr)}}.design-card{background:var(--surface);border:1px solid var(--border-light);border-radius:12px;box-shadow:0 1px 3px #0000000d,0 1px 2px #0000000a;overflow:hidden;cursor:pointer;transition:transform .15s,box-shadow .15s,border-color .15s;position:relative;outline:none}.design-card:hover{transform:translateY(-2px);box-shadow:0 8px 24px #00000017,0 3px 8px #0000000d;border-color:var(--border)}.design-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.design-card-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px}.design-card-header-left{display:flex;align-items:center;gap:8px}.design-card-tech-icon{font-size:15px;line-height:1}.design-card-tech-label{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.5px}.design-card-status{font-size:10px;font-weight:700;padding:3px 10px;border-radius:10px;text-transform:uppercase;letter-spacing:.3px}.design-card--rfid .design-card-header{background:#eff6ff}.design-card--rfid .design-card-tech-label{color:#1d4ed8}.design-card--barcode .design-card-header{background:#fff7ed}.design-card--barcode .design-card-tech-label{color:#c2410c}.design-card--ble .design-card-header{background:#eef2ff}.design-card--ble .design-card-tech-label{color:#4338ca}.design-card--nfc .design-card-header{background:#f0fdfa}.design-card--nfc .design-card-tech-label{color:#0f766e}.design-card--rtls 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8px #0000000f;min-width:128px;z-index:10;overflow:hidden}.design-card-dropdown-item{display:block;width:100%;padding:8px 14px;border:none;background:none;font-size:13px;color:var(--text-secondary);cursor:pointer;text-align:left}.design-card-dropdown-item:hover{background:var(--surface-hover)}.design-card-dropdown-delete{color:var(--status-red)}.design-card-dropdown-delete:hover{background:var(--status-red-bg)}[data-theme=dark] .design-card{border-color:var(--border)}[data-theme=dark] .design-card:hover{box-shadow:0 8px 24px #0000004d}[data-theme=dark] .design-card--rfid .design-card-header{background:#172554}[data-theme=dark] .design-card--rfid .design-card-tech-label{color:#60a5fa}[data-theme=dark] .design-card--barcode .design-card-header{background:#431407}[data-theme=dark] .design-card--barcode .design-card-tech-label{color:#fb923c}[data-theme=dark] .design-card--ble .design-card-header{background:#1e1b4b}[data-theme=dark] .design-card--ble 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var(--color-border);background:var(--color-surface);color:var(--color-text-secondary);font-size:1.25rem;font-weight:500;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background-color .15s ease,color .15s ease,border-color .15s ease}.new-conversation-btn:hover{background:var(--accent);color:var(--text-on-accent);border-color:var(--accent)}.toolbar-right{display:flex;align-items:center;gap:calc(var(--spacing-unit, 4px) * 4)}.autosave-indicator{font-size:.75rem;color:var(--color-text-secondary)}.autosave-indicator.autosave-error{color:var(--color-error, #EF4444);font-weight:600}.autosave-indicator.autosave-saving{opacity:.7}.workspace-loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;color:var(--color-text-secondary);font-size:.875rem;gap:12px}.workspace-spinner{width:32px;height:32px;border:3px solid var(--color-border, #e0e0e0);border-top-color:var(--color-primary, #2563eb);border-radius:50%;animation:spin .8s linear infinite}.workspace-error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;flex:1;padding:80px 40px;text-align:center}.workspace-error-message{color:var(--color-error, #EF4444);font-size:1.125rem;font-weight:600;margin-bottom:16px}.split-pane{display:flex;flex:1;overflow:hidden;min-height:0}.split-pane-left,.split-pane-right{overflow:auto;min-height:0}.split-divider{width:8px;background:var(--color-border);cursor:col-resize;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative;transition:background-color .15s ease}.split-divider:hover{background:var(--color-primary)}.split-divider-handle{width:4px;height:32px;border-radius:2px;background:var(--color-text-secondary);opacity:.5}.split-divider:hover .split-divider-handle{background:var(--color-surface);opacity:.9}.chat-panel,.preview-panel{height:100%;padding:calc(var(--spacing-unit) * 4);box-sizing:border-box;display:flex;flex-direction:column;overflow:hidden}.chat-panel{background:var(--color-surface)}.preview-panel{background:var(--color-background)}.workspace-mobile{display:flex;flex-direction:column;flex:1;overflow:hidden}.mobile-tab-toggle{display:flex;border-bottom:1px solid var(--color-border);background:var(--color-surface);flex-shrink:0}.mobile-tab{flex:1;padding:calc(var(--spacing-unit) * 2.5) calc(var(--spacing-unit) * 4);border:none;background:transparent;font-family:var(--font-stack);font-size:.875rem;font-weight:500;color:var(--color-text-secondary);cursor:pointer;border-bottom:2px solid transparent;transition:color .15s ease,border-color .15s ease}.mobile-tab:hover{color:var(--color-text-primary)}.mobile-tab.active{color:var(--color-primary);border-bottom-color:var(--color-primary)}.workspace-mobile-content{flex:1;overflow:auto}.theme-toggle-btn{width:32px;height:32px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);color:var(--text-secondary);cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:background .15s ease,color .15s ease,border-color .15s ease}.theme-toggle-btn:hover{background:var(--surface-hover);color:var(--accent);border-color:var(--accent)}[data-theme=dark] .chat-panel{background:var(--surface)}[data-theme=dark] .preview-panel{background:var(--bg)}[data-theme=dark] .workspace-toolbar{background:var(--surface);border-bottom-color:var(--border)}[data-theme=dark] .split-divider{background:var(--border)}[data-theme=dark] .mobile-tab-toggle{background:var(--surface);border-bottom-color:var(--border)}@media (max-width: 767px){.split-pane{display:none}}@media (min-width: 768px){.workspace-mobile{display:none}}.app-layout{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--sidebar-bg);border-right:1px solid 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.sidebar-link{justify-content:center;padding:10px}.sidebar.collapsed .sidebar-footer{justify-content:center;padding:16px 6px}.sidebar-collapse-btn{background:none;border:1px solid var(--border);border-radius:var(--radius);width:24px;height:24px;display:flex;align-items:center;justify-content:center;cursor:pointer;color:var(--text-muted);flex-shrink:0;transition:color .15s,background .15s}.sidebar-collapse-btn:hover{color:var(--text-primary);background:var(--surface-hover)}.sidebar-collapse-btn svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px}.sidebar-link{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius);font-size:13px;color:var(--sidebar-text);transition:all 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var(--border-light);display:flex;align-items:center;gap:10px}.sidebar-avatar{width:32px;height:32px;border-radius:50%;background:var(--accent);color:var(--text-on-accent);display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px;flex-shrink:0}.sidebar-user-name{font-size:13px;font-weight:600;color:var(--text-primary)}.sidebar-user-role{font-size:11px;color:var(--text-muted)}.main-content{margin-left:var(--sidebar-width);flex:1;height:100vh;overflow:auto;transition:margin-left .2s ease}.sidebar.collapsed~.main-content,.app-layout.sidebar-collapsed .main-content{margin-left:var(--sidebar-collapsed-width)}[data-theme=dark] .sidebar{background:var(--bg);border-right-color:var(--border)}[data-theme=dark] .sidebar-brand{border-bottom-color:var(--border)}[data-theme=dark] .sidebar-brand-name{color:var(--accent)}[data-theme=dark] .sidebar-footer{border-top-color:var(--border)}[data-theme=dark] .sidebar-collapse-btn{border-color:var(--border);color:var(--text-muted)}[data-theme=dark] .sidebar-collapse-btn:hover{color:var(--text-primary);background:var(--surface-hover)}.shared-view{max-width:860px;margin:0 auto;padding:40px;min-height:100vh;background:#fff}.shared-view-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px;padding-bottom:20px;border-bottom:2px solid #e5e7eb}.shared-view-brand{display:flex;align-items:center;gap:12px}.shared-view-logo{width:40px;height:40px;border-radius:8px;background:#2563eb;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px}.shared-view-company{font-size:18px;font-weight:700;color:#1a1a2e}.shared-view-label{font-size:12px;color:#6b7280;background:#f3f4f6;padding:4px 10px;border-radius:4px}.shared-view-content h1{font-size:24px;font-weight:800;margin-bottom:8px;color:#1a1a2e}.shared-view-content .section-card{margin-bottom:8px}.shared-view-content .bom-table-wrapper{overflow-x:auto}.shared-view-footer{margin-top:60px;padding-top:16px;border-top:1px solid #e5e7eb;text-align:center;font-size:11px;color:#6b7280}.shared-view-loading,.shared-view-error{display:flex;align-items:center;justify-content:center;min-height:100vh;color:#6b7280;font-size:16px}@media (max-width: 768px){.shared-view{padding:16px}.shared-view-header{flex-wrap:wrap;gap:8px}.shared-view-content h1{font-size:20px}.shared-view-content .bom-table-wrapper{overflow-x:auto;-webkit-overflow-scrolling:touch}}.settings-page{max-width:960px;margin:0 auto;padding:32px 40px 48px}.settings-page .page-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:28px}.settings-page .page-title{font-size:22px;font-weight:700;color:var(--text-primary)}.settings-page .page-subtitle{font-size:13px;color:var(--text-muted);margin-top:2px}.settings-content{max-width:720px}.settings-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);padding:28px 32px;margin-top:8px}.settings-card-title{font-size:1.125rem;font-weight:600;color:var(--text-primary);margin-bottom:4px}.settings-card-desc{font-size:.875rem;color:var(--text-secondary);margin-bottom:24px}.settings-loading,.settings-error{padding:24px 0;text-align:center;color:var(--text-secondary);font-size:.875rem}.settings-error{color:var(--status-red)}.branding-form .form-group{margin-bottom:20px}.branding-form label{display:block;font-size:.8125rem;font-weight:500;color:var(--text-secondary);margin-bottom:6px}.branding-form input[type=text],.branding-form textarea{width:100%;padding:8px 12px;font-size:.875rem;border:1px solid var(--border);border-radius:var(--radius-input);background:var(--surface);color:var(--text-primary);transition:border-color .15s}.branding-form input[type=text]:focus,.branding-form textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-light)}.branding-form textarea{resize:vertical;min-height:80px}.char-count{text-align:right;font-size:.75rem;color:var(--text-muted);margin-top:4px}.logo-upload-area{width:120px;height:120px;border:2px dashed var(--border);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:border-color .15s,background .15s;overflow:hidden}.logo-upload-area:hover{border-color:var(--accent);background:var(--accent-light)}.logo-upload-area:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.logo-preview{width:100%;height:100%;object-fit:contain}.logo-placeholder{display:flex;flex-direction:column;align-items:center;gap:6px;color:var(--text-muted);font-size:.75rem}.logo-placeholder svg{color:var(--text-muted)}.logo-upload-spinner{display:flex;align-items:center;justify-content:center;color:var(--accent)}.color-picker-group{display:flex;align-items:center;gap:10px}.color-picker-group 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infinite}.btn-spinner{width:16px;height:16px}.deck-upload-area{display:flex;align-items:center;gap:12px}.deck-upload-hint{font-size:12px;color:var(--text-muted)}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.tag-list{display:flex;flex-direction:column;gap:6px}.tag-item{display:flex;align-items:center;gap:6px}.tag-item input{flex:1}.tag-remove{width:24px;height:24px;border:none;background:none;color:var(--text-muted);font-size:14px;cursor:pointer;border-radius:4px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.tag-remove:hover{color:var(--status-red);background:var(--status-red-bg)}.btn-add-tag{border:none;background:none;color:var(--accent);font-size:12px;font-weight:600;cursor:pointer;padding:4px 0;text-align:left}.btn-add-tag:hover{text-decoration:underline}.form-hint{font-size:11px;color:var(--text-muted);margin-top:4px}