:root{--bg:#f5f6f8;--surface:#fff;--surface-2:#eef1f4;--border:#dce1e7;--text-primary:#16283f;--text-secondary:#5b6b7d;--text-muted:#8d98a5;--navy:#1e3a5f;--warn-bg:#fcefda;--warn-text:#9a6714;--danger-bg:#fbe7e4;--danger-text:#a6382b;--success:#2e7d4f;--radius:10px;--font-sans:"Segoe UI",Roboto,-apple-system,sans-serif;--font-mono:"Consolas","Courier New",monospace}*{box-sizing:border-box}body,html{padding:0;margin:0;background:var(--bg);color:var(--text-primary);font-family:var(--font-sans)}a{color:inherit}button{cursor:pointer}button,input,select{font-family:var(--font-sans)}input,select{font-size:14px;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#fff;color:var(--text-primary);width:100%}.container{max-width:480px;margin:0 auto;min-height:100vh;background:var(--bg);display:flex;flex-direction:column}@media (min-width:900px){.container{max-width:900px;margin:24px auto;min-height:calc(100vh - 48px);border-radius:16px;border:1px solid var(--border);box-shadow:0 8px 30px rgba(22,40,63,.08)}.screen{padding:24px 32px 40px}.screen>div[style*="grid-template-columns: 1fr 1fr"]{grid-template-columns:repeat(4,1fr)}}@media (min-width:1280px){.container{max-width:1100px}}.topbar{justify-content:space-between;padding:16px 18px 8px}.brand-row,.topbar{display:flex;align-items:center}.brand-row{gap:10px}.brand-divider{width:1px;height:26px;background:var(--navy);opacity:.7}.brand-title{font-size:15px;font-weight:700;letter-spacing:1.5px;color:var(--navy);text-transform:uppercase}.brand-sub{font-size:10px;text-transform:none;margin-top:1px}.brand-sub,.role-badge{color:var(--text-secondary)}.role-badge{font-size:11px;background:var(--surface-2);padding:4px 10px;border-radius:20px;border:1px solid var(--border)}.tabs{display:flex;gap:6px;padding:0 18px 12px;border-bottom:1px solid var(--border)}.tab{flex:1 1;text-align:center;padding:10px 4px;font-size:12.5px;color:var(--text-muted);background:none;border:none;border-bottom:2px solid transparent}.tab.active{color:var(--text-primary);border-bottom:2px solid var(--navy);font-weight:600}.screen{padding:16px 18px 90px;flex:1 1}.card{border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.btn,.card{background:var(--surface)}.btn{border-radius:10px;border:1px solid var(--border);color:var(--text-primary);font-size:13px;padding:11px 14px}.btn-primary{background:var(--navy);border-color:var(--navy);color:#fff;font-weight:600}.btn-block{width:100%}.chip{font-size:12px;padding:7px 13px;border-radius:20px;border:1px solid var(--border);color:var(--text-secondary);white-space:nowrap;background:var(--surface)}.chip.active{background:var(--navy);color:#fff;border-color:var(--navy);font-weight:600}.row{display:flex;justify-content:space-between;align-items:center;padding:13px 15px;border-bottom:1px solid var(--border)}.row:last-child{border-bottom:none}.list{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:var(--surface)}.stock-low{color:var(--warn-text);font-weight:700}.sku-mono{font-family:var(--font-mono);font-size:11.5px;color:var(--text-muted)}