:root{--bg: #f1f5f9;--surface: #ffffff;--ink: #0f172a;--muted: #64748b;--line: #e2e8f0;--accent: #0d9488;--accent-dark: #0f766e;--accent-light: #ccfbf1;--accent-2: #3b82f6;--danger: #ef4444;--warning: #f59e0b;--success: #10b981;--rail: #ffffff;--shadow-sm: 0 1px 2px 0 rgba(15, 23, 42, .04);--shadow: 0 1px 3px 0 rgba(15, 23, 42, .08), 0 1px 2px -1px rgba(15, 23, 42, .08);--shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, .08), 0 4px 6px -4px rgba(15, 23, 42, .08);--radius: 10px;--radius-sm: 6px;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer}.app{min-height:100vh}.topbar{height:68px;display:flex;align-items:center;gap:24px;padding:0 24px;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--shadow-sm);position:relative;z-index:20}.brand{min-width:220px;display:flex;align-items:center;gap:12px}.mark{font-weight:800;font-size:22px;letter-spacing:-.02em;color:var(--ink)}.brand strong{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);padding:4px 8px;background:var(--accent-light);border-radius:999px}.chat{margin-left:auto;height:44px;min-width:160px;color:var(--accent);background:#fff;border-bottom:3px solid #f2f2f2;font-weight:700}.top-actions{display:flex;align-items:center;gap:14px;margin-left:auto}.top-actions>svg{color:var(--muted);cursor:pointer;transition:color .15s}.top-actions>svg:hover{color:var(--ink)}.dropdown-menu{position:relative}.dropdown-panel{position:absolute;top:calc(100% + 6px);right:0;background:var(--surface);border:1px solid 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button.active{color:var(--accent);background:var(--accent-light);border-color:var(--accent)}.pos-layout{display:grid;grid-template-columns:minmax(680px,1fr) 460px;width:100%;min-width:0}.catalog{min-width:0;background:var(--surface);border-right:1px solid var(--line);display:flex;flex-direction:column}.search-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;padding:16px 24px 12px}.search-row input,.customer-select select,.customer-select button,.custom-grid input,.custom-grid select,.panel input,.panel select{height:40px;border:1px solid #cbd5e1;border-radius:var(--radius-sm);padding:0 12px;color:#334155;background:#fff;font-size:13px;outline:none;transition:border-color .15s,box-shadow .15s}.search-row input:focus,.panel input:focus,.panel select:focus,.custom-grid input:focus{border-color:var(--accent);box-shadow:0 0 0 3px #0d94881a}.tabs,.client-tabs{display:flex;align-items:center;gap:8px;padding:12px 24px 0;border-bottom:1px solid var(--line)}.tabs button,.client-tabs 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