:root{--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #dbeafe;--danger: #ef4444;--danger-light: #fee2e2;--green: #16a34a;--green-light: #dcfce7;--green-border: #86efac;--bg: #f1f5f9;--surface: #ffffff;--border: #e2e8f0;--text: #1e293b;--muted: #64748b;--radius: 8px;--shadow: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,system-ui,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}.app{height:100dvh;display:flex;flex-direction:column;overflow:hidden}.workspace{flex:1;display:flex;overflow:hidden}.editor-col{flex:1;overflow-y:auto;padding:12px;display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto;width:100%}.header{background:var(--surface);border-bottom:1px solid var(--border);padding:10px 14px 0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;flex-shrink:0;box-shadow:var(--shadow);z-index:10}.header-brand{display:flex;align-items:center;gap:8px;flex:1;min-width:0}.brand-icon{font-size:20px;flex-shrink:0}.brand-title{font-size:16px;font-weight:700;letter-spacing:-.3px;white-space:nowrap}.header-actions{display:flex;align-items:center;gap:6px;flex-shrink:0}.demo-nav{width:100%;display:flex;gap:6px;overflow-x:auto;padding:8px 0 6px;border-top:1px solid var(--border);scrollbar-width:none}.demo-nav::-webkit-scrollbar{display:none}.demo-nav .btn{flex-shrink:0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:5px;padding:6px 12px;border-radius:6px;border:1px solid transparent;font-size:13px;font-weight:500;cursor:pointer;transition:background .12s,border-color .12s,opacity .12s;white-space:nowrap}.btn:disabled{opacity:.4;cursor:default}.btn-ghost{background:transparent;color:var(--text);border-color:var(--border)}.btn-ghost:hover:not(:disabled){background:var(--bg)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover:not(:disabled){background:var(--primary-hover);border-color:var(--primary-hover)}.btn-add{background:var(--green-light);color:var(--green);border:1px dashed var(--green-border);font-size:12px;padding:4px 10px}.btn-add:hover{background:#bbf7d0}.btn-icon{width:28px;height:28px;border-radius:6px;border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:13px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);transition:all .12s}.btn-icon:hover:not(:disabled){background:var(--bg);color:var(--text)}.btn-icon:disabled{opacity:.25;cursor:default}.btn-icon-danger:hover:not(:disabled){background:var(--danger-light);border-color:#fca5a5;color:var(--danger)}.btn-icon-sm{width:22px;height:22px;border-radius:4px;border:none;background:transparent;cursor:pointer;font-size:11px;display:inline-flex;align-items:center;justify-content:center;color:var(--muted);transition:all .12s}.btn-icon-sm:hover:not(:disabled){background:var(--bg);color:var(--text)}.btn-icon-sm:disabled{opacity:.2;cursor:default}.btn-danger-sm:hover:not(:disabled){color:var(--danger);background:var(--danger-light)}.empty-state{flex:1;display:flex;align-items:center;justify-content:center}.empty-state-inner{text-align:center;max-width:360px;display:flex;flex-direction:column;align-items:center;gap:12px}.empty-icon{font-size:48px}.empty-state-inner h2{font-size:22px;font-weight:700}.empty-state-inner p{color:var(--muted);font-size:14px}.empty-actions{display:flex;gap:8px;margin-top:4px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}.card-title{font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.07em;color:var(--muted);margin-bottom:12px}.form-grid{display:grid;grid-template-columns:1fr;gap:10px}.form-grid-3{display:grid;grid-template-columns:1fr 1fr;gap:10px}.col-span-2{grid-column:span 2}.form-row{display:flex;gap:10px;align-items:flex-start;flex-wrap:wrap}.form-col{display:flex;flex-direction:column;gap:8px}.locked-field{display:flex;align-items:center;gap:8px;padding:7px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;color:var(--muted);background:#f8fafc;font-weight:600}.locked-badge{font-size:10px;font-weight:500;color:#64748b;background:#f1f5f9;border:1px solid var(--border);border-radius:4px;padding:1px 5px;text-transform:uppercase;letter-spacing:.04em}.price-input-wrapper{display:flex;align-items:stretch;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:#fafafa;transition:border-color .12s}.price-input-wrapper:focus-within{border-color:var(--primary);background:#fff}.price-input-wrapper input{flex:1;border:none!important;background:transparent!important;border-radius:0!important;padding:7px 10px;font-size:13px;color:var(--text)}.price-input-wrapper input:focus{outline:none}.price-suffix{display:flex;align-items:center;padding:0 10px;font-size:12px;font-weight:700;color:#fff;background:var(--primary);flex-shrink:0;letter-spacing:.03em}label{display:flex;flex-direction:column;gap:4px;font-size:12px;font-weight:500;color:var(--muted)}.checkbox-inline{flex-direction:row!important;align-items:center;gap:6px;font-size:13px;color:var(--text);cursor:pointer;font-weight:400}.muted{color:var(--muted);font-style:italic}input[type=text],input:not([type=checkbox]):not([type=file]),select,textarea{padding:7px 10px;border:1px solid var(--border);border-radius:6px;font-size:13px;color:var(--text);background:#fafafa;width:100%;font-family:inherit;transition:border-color .12s,background .12s}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);background:#fff}textarea{resize:vertical;min-height:52px;line-height:1.4}.promo-section{margin-top:14px;border-top:1px solid var(--border);padding-top:12px}.promo-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.promo-title{font-size:14px;font-weight:600;color:var(--text)}.toggle-switch{flex-direction:row!important;align-items:center;gap:8px;cursor:pointer;font-size:12px;color:var(--muted)}.toggle-track{position:relative;display:inline-block;width:32px;height:18px;background:#cbd5e1;border-radius:9px;transition:background .2s;cursor:pointer}.toggle-switch input:checked~.toggle-label{color:var(--primary)}.toggle-switch input{display:none}.toggle-thumb{position:absolute;top:2px;left:2px;width:14px;height:14px;background:#fff;border-radius:50%;transition:transform .2s;box-shadow:0 1px 2px #0003}.toggle-switch input:checked+.toggle-track{background:var(--primary)}.toggle-switch input:checked+.toggle-track .toggle-thumb{transform:translate(14px)}.sections-wrapper{display:flex;flex-direction:column;gap:8px}.sections-header{display:flex;align-items:center;justify-content:space-between}.sections-title{font-size:16px;font-weight:700;display:flex;align-items:center;gap:8px}.count-badge{display:inline-flex;align-items:center;justify-content:center;min-width:20px;height:20px;padding:0 6px;background:var(--primary);color:#fff;border-radius:10px;font-size:11px;font-weight:700}.empty-sections{padding:16px;text-align:center;color:var(--muted);font-size:13px;background:var(--surface);border:1px dashed var(--border);border-radius:var(--radius)}.section-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:border-color .15s}.section-card.is-open{border-color:#93c5fd}.section-card-header{display:flex;align-items:center;gap:10px;padding:10px 12px;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .1s}.section-card-header:hover{background:#f8fafc}.expand-chevron{font-size:11px;color:var(--muted);width:12px;flex-shrink:0}.section-card-title{flex:1;font-size:14px;font-weight:600;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.section-card-count{font-size:11px;color:var(--muted);background:var(--bg);padding:2px 8px;border-radius:10px;white-space:nowrap}.section-card-actions{display:flex;gap:4px;flex-shrink:0}.section-card-body{padding:14px 14px 16px;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:14px;background:#fafeff}.mode-row{display:flex;align-items:center;gap:6px}.mode-btn{padding:4px 10px;border-radius:6px;border:1px solid var(--border);background:var(--bg);cursor:pointer;font-size:11px;font-weight:500;color:var(--muted);transition:all .12s}.mode-btn.active{background:var(--primary);color:#fff;border-color:var(--primary)}.mode-btn:not(.active):hover{background:#e2e8f0;color:var(--text)}.items-list{display:flex;flex-direction:column;gap:5px}.list-subheader{display:flex;align-items:center;justify-content:space-between;padding:0 2px 4px}.item-card{border:1px solid var(--border);border-radius:6px;overflow:hidden;background:var(--surface);transition:border-color .12s}.item-card:hover{border-color:#93c5fd}.item-unavailable{opacity:.55}.item-header{display:flex;align-items:center;gap:8px;padding:7px 10px;cursor:pointer;-webkit-user-select:none;user-select:none}.item-header:hover{background:#f8fafc}.item-expand-icon{font-size:10px;color:var(--muted);width:10px;flex-shrink:0}.item-name-preview{flex:1;font-size:13px;font-weight:500;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.item-price-preview{font-size:12px;color:var(--muted);font-family:Courier New,monospace;white-space:nowrap;flex-shrink:0}.tag-unavailable{font-size:10px;color:var(--danger);background:var(--danger-light);border-radius:3px;padding:1px 5px;font-weight:600;flex-shrink:0}.item-actions{display:flex;gap:2px;flex-shrink:0}.item-form{padding:10px 12px;display:flex;flex-direction:column;gap:8px;border-top:1px solid var(--border);background:#fff}.badges-row{display:flex;align-items:center;flex-wrap:wrap;gap:6px}.badges-label{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.04em}.badge-chip{display:inline-flex;align-items:center;gap:4px;flex-direction:row!important;font-size:11px;font-weight:400;color:var(--muted);padding:3px 9px;border:1px solid var(--border);border-radius:20px;background:var(--bg);cursor:pointer;transition:all .12s}.badge-chip:hover{background:var(--primary-light);border-color:#93c5fd;color:var(--primary)}.badge-chip.active{background:var(--primary-light);border-color:#93c5fd;color:var(--primary);font-weight:500}.btn-delete-item{align-self:flex-start;padding:5px 14px;border-radius:6px;border:1px solid #fca5a5;background:var(--danger-light);color:var(--danger);font-size:12px;font-weight:600;cursor:pointer;transition:all .12s}.btn-delete-item:hover{background:var(--danger);color:#fff;border-color:var(--danger)}.subsections-list{display:flex;flex-direction:column;gap:8px}.subsection-block{border:1px solid var(--border);border-radius:6px;overflow:hidden}.subsection-bar{display:flex;align-items:center;gap:8px;padding:8px 10px;background:#f8fafc;border-bottom:1px solid var(--border)}.drag-handle{color:var(--border);font-size:14px;cursor:grab;flex-shrink:0}.subsection-title-input{flex:1;border:none;background:transparent;font-size:13px;font-weight:600;padding:0;color:var(--text)}.subsection-title-input:focus{outline:none}.subsection-items{padding:10px}.json-preview{flex:1;display:flex;flex-direction:column;overflow:hidden}.json-header{padding:8px 14px;background:#0a0f1a;display:flex;align-items:center;gap:10px;border-bottom:1px solid #1e293b;flex-shrink:0}.json-header-title{font-size:11px;color:#64748b;font-weight:600;text-transform:uppercase;letter-spacing:.06em;flex:1}.json-char-count{font-size:11px;color:#334155}.btn-copy{padding:4px 10px;background:#1e293b;border:1px solid #334155;color:#94a3b8;border-radius:5px;cursor:pointer;font-size:11px;transition:all .12s}.btn-copy:hover{background:#334155;color:#fff}.json-body{flex:1;overflow:auto;margin:0;padding:14px 16px;font-family:Cascadia Code,Fira Code,Courier New,monospace;font-size:11.5px;line-height:1.7;color:#cbd5e1;background:#0f172a;white-space:pre;-moz-tab-size:2;tab-size:2}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#cbd5e1;border-radius:3px}::-webkit-scrollbar-thumb:hover{background:#94a3b8}.section-nav-bar{background:var(--surface);border-bottom:1px solid var(--border);flex-shrink:0;z-index:9;box-shadow:0 2px 6px #0000000d}.search-wrapper{display:flex;align-items:center;gap:8px;padding:8px 14px;border-bottom:1px solid var(--border)}.search-icon{font-size:14px;flex-shrink:0}.search-input{flex:1;width:auto!important}.search-clear{background:none;border:none;cursor:pointer;color:var(--muted);font-size:13px;padding:2px 6px;border-radius:4px;transition:color .12s;flex-shrink:0}.search-clear:hover{color:var(--danger)}.section-tabs{display:flex;gap:6px;padding:8px 14px;overflow-x:auto;scrollbar-width:none}.section-tabs::-webkit-scrollbar{display:none}.section-tab{padding:4px 14px;border-radius:20px;border:1px solid var(--border);background:var(--bg);cursor:pointer;font-size:12px;font-weight:500;white-space:nowrap;color:var(--text);transition:all .12s;flex-shrink:0}.section-tab:hover{background:var(--primary-light);border-color:#93c5fd;color:var(--primary)}.bottom-bar{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--surface);border-top:1px solid var(--border);box-shadow:0 -2px 8px #0000000d;flex-shrink:0;z-index:9}.btn-scroll-top{width:36px;height:36px;border-radius:50%;border:1px solid var(--border);background:var(--bg);cursor:pointer;font-size:16px;display:inline-flex;align-items:center;justify-content:center;transition:all .12s}.btn-scroll-top:hover:not(:disabled){background:var(--primary-light);border-color:#93c5fd}.btn-scroll-top:disabled{opacity:.3;cursor:default}.btn-save{padding:8px 20px;border-radius:6px;border:none;background:var(--primary);color:#fff;font-size:13px;font-weight:600;cursor:pointer;transition:background .12s}.btn-save:hover:not(:disabled){background:var(--primary-hover)}.btn-save:disabled{opacity:.4;cursor:default}.section-fields-row{display:flex;flex-direction:column;gap:10px}.section-open-label{align-self:flex-start!important;padding-bottom:0!important}@media (min-width: 600px){.editor-col{padding:20px;gap:14px}.header{flex-wrap:nowrap;padding:0 20px;height:54px;align-items:center}.demo-nav{width:auto;flex:1;border-top:none;border-left:1px solid var(--border);padding:0 0 0 12px;margin-left:4px;overflow-x:unset;order:2}.header-actions{order:3}.form-grid{grid-template-columns:1fr 1fr}.form-grid-3{grid-template-columns:1fr 1fr 1fr}.section-fields-row{flex-direction:row;flex-wrap:wrap;align-items:flex-end}.section-id-label{flex:0 0 110px}.section-title-label{flex:1}.section-open-label{padding-bottom:6px!important;align-self:flex-end!important}}