*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:system-ui,-apple-system,sans-serif;background:#f9fafb;color:#222;-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}.app-layout{display:flex;min-height:100vh}.sidebar{width:220px;background:#fff;padding:24px 16px;display:flex;flex-direction:column;box-shadow:1px 0 8px #0000000f;flex-shrink:0;z-index:20;position:sticky;top:0;height:100vh;overflow-y:auto;align-self:flex-start}.sidebar-overlay{display:none;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;z-index:15}.topbar{display:none;position:fixed;top:0;left:0;right:0;height:56px;background:#fff;align-items:center;padding:0 16px;gap:12px;box-shadow:0 1px 4px #0000001a;z-index:10}.topbar-title{font-weight:700;font-size:20px;color:#1a73e8}.hamburger{background:none;border:none;font-size:22px;cursor:pointer;padding:4px 8px;border-radius:8px;color:#444;line-height:1}.app-main{flex:1;display:flex;flex-direction:column;padding:32px;background:#f9fafb;min-width:0}.app-main:after{content:"";display:block;height:32px;flex-shrink:0}.inventory-filter{position:sticky;top:-32px;margin-top:-32px;background:#f9fafb;z-index:5;padding:32px 0 12px}@keyframes spin{to{transform:rotate(360deg)}}@media(max-width:767px){.sidebar{position:fixed;top:0;left:0;bottom:0;transform:translate(-100%);transition:transform .25s ease}.sidebar.is-open{transform:translate(0)}.sidebar-overlay.is-open{display:block}.topbar{display:flex}.app-main{padding:72px 16px 16px;height:auto;overflow-y:visible}.inventory-filter{top:56px;margin-top:-16px;padding:16px 0 12px}}input[type=number]::-webkit-outer-spin-button,input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}input[type=number]{-moz-appearance:textfield;-webkit-appearance:textfield;appearance:textfield}