:root {
    --color-bg: #f4f6f8;
    --color-surface: #fff;
    --color-text: #17202a;
    --color-muted: #667085;
    --color-border: #dfe3e8;
    --color-primary: #1d4ed8;
    --color-error: #b42318;
    --color-success: #067647;
    --radius: 6px;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font: 16px/1.5 system-ui, sans-serif; }
.site-header { display: flex; justify-content: space-between; align-items: center; padding: .9rem max(1rem, calc((100% - 1100px) / 2)); background: #17202a; }
.brand { color: #fff; font-weight: 700; text-decoration: none; }
.header-cart { color: #fff; font-weight: 700; }
.page { width: min(1100px, calc(100% - 2rem)); margin: 2rem auto; }
.panel { padding: 1.5rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); }
.panel--narrow { max-width: 440px; margin-inline: auto; }
.stack { display: grid; gap: 1rem; }
label { display: grid; gap: .35rem; font-weight: 600; }
input, select, button { min-height: 44px; padding: .6rem .75rem; border: 1px solid #b8c0cc; border-radius: var(--radius); font: inherit; }
textarea { padding: .6rem .75rem; border: 1px solid #b8c0cc; border-radius: var(--radius); font: inherit; resize: vertical; }
button { border-color: var(--color-primary); background: var(--color-primary); color: #fff; cursor: pointer; font-weight: 700; }
.button--secondary { border-color: #667085; background: #fff; color: var(--color-text); }
.button-link { display: inline-flex; min-height: 44px; align-items: center; padding: .6rem .85rem; border-radius: var(--radius); background: var(--color-primary); color: #fff; font-weight: 700; text-decoration: none; }
.toolbar { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.company-switcher { display: flex; align-items: end; gap: .75rem; margin-block: 1.5rem; }
.section-nav { display: flex; flex-wrap: wrap; gap: .75rem; margin-block: 1.5rem; }
.address-list { display: grid; gap: 1rem; margin-top: 1.5rem; }
.address-card { display: flex; justify-content: space-between; gap: 1rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.address-card h2 { margin-top: 0; font-size: 1.1rem; }
.address-card--inactive { background: var(--color-bg); color: var(--color-muted); }
.address-actions { display: flex; align-items: start; gap: .75rem; }
.status, .field-error { color: var(--color-error); font-weight: 700; }
.muted { color: var(--color-muted); }
.notice { padding: .75rem 1rem; border-radius: var(--radius); background: #eef4ff; }
.notice--error { color: var(--color-error); background: #fef3f2; }
.notice--success { color: var(--color-success); background: #ecfdf3; }
.empty-state { margin-top: 2rem; padding: 1.25rem; border: 1px dashed var(--color-border); color: var(--color-muted); }
.catalog-shell { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 1rem; align-items: start; }
.category-panel { max-height: calc(100vh - 6rem); overflow: auto; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); }
.category-tree, .category-tree ul { margin: 0; padding-left: 1rem; list-style: none; }
.category-tree { padding-left: 0; }
.category-link { display: block; padding: .25rem .4rem; border-radius: 4px; color: var(--color-text); text-decoration: none; }
.category-link:hover, .category-link--active { background: #e8efff; color: var(--color-primary); }
.facet-filter { margin-top: 1.5rem; padding-top: 1rem; border-top: 1px solid var(--color-border); }
.facet-filter h2 { margin-top: 0; }
.facet { border-bottom: 1px solid var(--color-border); }
.facet summary { padding: .65rem 0; cursor: pointer; font-weight: 700; }
.facet-values { display: grid; max-height: 220px; gap: .35rem; overflow-y: auto; padding: 0 0 .75rem; }
.facet-value { display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: start; gap: .5rem; font-size: .875rem; font-weight: 400; }
.facet-value input { min-height: auto; margin: .2rem 0 0; }
.facet-value small { color: var(--color-muted); }
.facet-actions { display: flex; align-items: center; gap: .75rem; margin-top: 1rem; }
.catalog-search { margin-block: 1rem; }
.search-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: .5rem; }
.product-list { border-top: 1px solid var(--color-border); }
.product-row { display: grid; grid-template-columns: 72px minmax(0, 1fr) 150px 130px; gap: 1rem; align-items: center; padding-block: .75rem; border-bottom: 1px solid var(--color-border); }
.product-image { display: grid; width: 72px; height: 72px; place-items: center; color: var(--color-muted); font-size: .75rem; text-align: center; }
.product-image img { width: 72px; height: 72px; object-fit: contain; }
.product-main h2 { margin: 0 0 .35rem; font-size: 1rem; }
.product-codes { display: flex; flex-wrap: wrap; gap: .25rem 1rem; color: var(--color-muted); font-size: .875rem; }
.stock { color: var(--color-muted); font-weight: 700; text-align: right; }
.stock--available { color: var(--color-success); }
.pagination { display: flex; justify-content: center; gap: 1rem; margin-top: 1.5rem; }
.product-detail__header { display: grid; grid-template-columns: minmax(280px, 420px) minmax(0, 1fr); gap: 2rem; }
.product-detail__main-image { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.product-detail__placeholder { display: grid; aspect-ratio: 1; place-items: center; border: 1px dashed var(--color-border); color: var(--color-muted); }
.product-facts { display: grid; gap: .5rem; }
.product-facts div { display: grid; grid-template-columns: 130px minmax(0, 1fr); gap: .75rem; border-bottom: 1px solid var(--color-border); padding-bottom: .4rem; }
.product-facts dt { color: var(--color-muted); }
.product-facts dd { margin: 0; font-weight: 700; }
.product-facts .stock { text-align: left; }
.product-categories { display: flex; flex-wrap: wrap; gap: .5rem; margin-block: 1rem; }
.product-categories a { padding: .25rem .5rem; border-radius: 4px; background: var(--color-bg); }
.product-section { margin-top: 2rem; }
.product-gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 120px)); gap: .75rem; }
.product-gallery a { border: 1px solid var(--color-border); border-radius: var(--radius); }
.product-gallery img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; }
.product-description { max-width: 80ch; white-space: pre-line; }
.table-scroll { overflow-x: auto; }
.attribute-table { width: 100%; border-collapse: collapse; }
.attribute-table th, .attribute-table td { padding: .55rem .75rem; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.attribute-table th { width: 35%; background: var(--color-bg); }
.registration-link { margin-top: 1.5rem; text-align: center; }
.add-company-trigger { margin-bottom: 1.5rem; }
.company-dialog { width: min(620px, calc(100% - 2rem)); padding: 1.5rem; border: 0; border-radius: 16px; box-shadow: 0 24px 80px rgba(0,0,0,.2); color: var(--color-text); }
.company-dialog::backdrop { background: rgba(29,29,31,.42); backdrop-filter: blur(3px); }
.company-dialog__header { display: flex; align-items: start; justify-content: space-between; gap: 1rem; }
.company-dialog h2 { margin: 0; font-size: 1.8rem; }
.dialog-close { min-width: 44px; padding: 0; border: 0; background: transparent; color: var(--color-muted); font-size: 1.8rem; line-height: 1; }
.dialog-actions { display: flex; justify-content: flex-end; margin-top: 1rem; }
.company-dialog[open] { animation: dialog-in .16s ease-out; }
@keyframes dialog-in { from { opacity: 0; transform: translateY(8px) scale(.98); } to { opacity: 1; transform: none; } }
.registration-panel { max-width: 760px; margin-inline: auto; }
.public-hero { padding: clamp(2rem, 6vw, 5rem); background: linear-gradient(135deg, #fff 0%, #eef5ff 100%); }
.public-hero__content { max-width: 760px; }
.eyebrow { margin: 0 0 .65rem; color: var(--color-primary); font-size: .78rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.public-hero h1 { max-width: 760px; margin: 0; font-size: clamp(2.25rem, 5vw, 4.5rem); line-height: 1.04; }
.public-hero__lead { max-width: 600px; margin: 1.25rem 0 0; color: var(--color-muted); font-size: 1.25rem; }
.public-hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.public-hero__note { margin: 1rem 0 0; color: var(--color-muted); font-size: .9rem; }
.button-link--secondary { background: transparent; color: var(--color-primary); box-shadow: inset 0 0 0 1px var(--color-primary); }
.public-section { padding-block: clamp(2rem, 5vw, 4rem); }
.public-section__heading { max-width: 680px; margin-bottom: 1.5rem; }
.public-section h2, .public-cta h2 { margin: 0; font-size: clamp(1.7rem, 3vw, 2.4rem); }
.feature-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.feature-card { padding: 1.35rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-surface); box-shadow: var(--shadow-surface); }
.feature-card__icon { display: grid; width: 2.3rem; height: 2.3rem; place-items: center; margin-bottom: 1rem; border-radius: 10px; background: #e8f1ff; color: var(--color-primary); font-size: 1.35rem; font-weight: 700; }
.feature-card h3 { margin: 0 0 .45rem; font-size: 1.1rem; }
.feature-card p { margin: 0; color: var(--color-muted); }
.public-cta { display: flex; align-items: center; justify-content: space-between; gap: 2rem; margin-bottom: 2rem; background: #1d1d1f; color: #fff; }
.public-cta h2 { color: #fff; }
.public-cta p:not(.eyebrow) { max-width: 680px; margin-bottom: 0; color: #d2d2d7; }
@media (max-width: 760px) { .feature-grid { grid-template-columns: 1fr 1fr; } .public-cta { align-items: stretch; flex-direction: column; } }
@media (max-width: 480px) { .feature-grid { grid-template-columns: 1fr; } .public-hero__actions { align-items: stretch; flex-direction: column; } }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.company-lookup { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: .75rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.company-lookup legend { padding-inline: .4rem; font-weight: 700; }
button:disabled { cursor: not-allowed; opacity: .5; }
.company-preview { padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.company-preview h2 { margin-top: 0; font-size: 1.1rem; }
.company-preview dl { display: grid; gap: .4rem; margin-bottom: 0; }
.company-preview dl div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: .75rem; }
.company-preview dt { color: var(--color-muted); }
.company-preview dd { margin: 0; }
.member-list { display: grid; gap: .75rem; margin-top: 1.5rem; }
.member-row { display: flex; justify-content: space-between; align-items: center; gap: 1rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.member-row h2 { margin: 0 0 .25rem; font-size: 1rem; }
.member-actions { display: flex; gap: .5rem; }
.button--danger { border-color: var(--color-error); background: var(--color-error); }
.approval-list { display: grid; gap: 1rem; margin-top: 1.5rem; }
.approval-card { display: flex; justify-content: space-between; align-items: start; gap: 1.5rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.approval-card h2 { margin-top: 0; }
.approval-facts { display: grid; gap: .3rem; }
.approval-facts div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: .75rem; }
.approval-facts dt { color: var(--color-muted); }
.approval-facts dd { margin: 0; }
.pricing-form { display: grid; min-width: 250px; gap: .65rem; }
.price { color: var(--color-text); font-weight: 800; text-align: right; }
.price small { display: block; color: var(--color-muted); font-weight: 400; }
.add-cart-form, .inline-form { display: flex; align-items: end; gap: .4rem; margin-top: .5rem; }
.add-cart-form input, .inline-form input { width: 80px; }
.cart-table { width: 100%; margin-top: 1.5rem; border-collapse: collapse; }
.cart-table th, .cart-table td { padding: .75rem; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.cart-table small, .cart-table .field-error { display: block; }
.order-table { width: 100%; margin-top: 1.5rem; border-collapse: collapse; }
.order-table th, .order-table td { padding: .75rem; border-bottom: 1px solid var(--color-border); text-align: left; vertical-align: top; }
.order-table small { display: block; color: var(--color-muted); }
.order-facts small { display: block; color: var(--color-muted); font-weight: 400; }
.admin-order-filters { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr auto; align-items: end; gap: .75rem; margin: 1.5rem 0; }
.admin-order-filter-actions { display: flex; align-items: center; gap: .75rem; }
.order-status-form { display: flex; align-items: end; gap: .75rem; margin: 1.5rem 0; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); }
.order-facts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1rem; }
.order-facts div { padding: .75rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.order-facts dt { color: var(--color-muted); }
.order-facts dd { margin: .25rem 0 0; font-weight: 700; }
.order-note { white-space: pre-line; }
.cart-summary { display: flex; justify-content: flex-end; align-items: end; gap: 1rem; margin-top: 1.5rem; }
.cart-summary dl { min-width: 300px; margin: 0; }
.cart-summary dl div { display: flex; justify-content: space-between; gap: 1rem; padding: .3rem 0; }
.cart-summary dd { margin: 0; font-weight: 800; }
.checkout { max-width: 800px; margin-inline: auto; }
.checkout fieldset { display: grid; gap: .75rem; padding: 1rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.address-choice { display: flex; justify-content: space-between; align-items: start; gap: 1rem; padding: .75rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.address-choice > label { display: grid; grid-template-columns: auto 1fr; align-items: start; font-weight: 400; }
.address-choice input { min-height: auto; margin-top: .3rem; }
@media (max-width: 600px) {
    .page { margin-block: 1rem; }
    .toolbar, .company-switcher, .address-card, .address-actions { align-items: stretch; flex-direction: column; }
    .catalog-shell { grid-template-columns: 1fr; }
    .category-panel { max-height: 300px; }
    .product-row { grid-template-columns: 56px minmax(0, 1fr); }
    .product-image, .product-image img { width: 56px; height: 56px; }
    .price, .stock { grid-column: 2; text-align: left; }
    .product-detail__header { grid-template-columns: 1fr; }
    .form-grid, .company-lookup { grid-template-columns: 1fr; }
    .member-row, .member-actions, .approval-card { align-items: stretch; flex-direction: column; }
    .pricing-form { min-width: 0; }
    .cart-summary { align-items: stretch; flex-direction: column; }
    .cart-summary dl { min-width: 0; width: 100%; }
    .order-facts { grid-template-columns: 1fr; }
    .admin-order-filters { grid-template-columns: 1fr; }
    .order-status-form { align-items: stretch; flex-direction: column; }
}

/* Apple-like visual layer
   Keeps the existing selectors, layout and responsive behavior intact. */
:root {
    --color-bg: #f5f5f7;
    --color-surface: #ffffff;
    --color-text: #1d1d1f;
    --color-muted: #6e6e73;
    --color-border: #d2d2d7;
    --color-primary: #0071e3;
    --color-primary-hover: #0077ed;
    --color-error: #d70015;
    --color-success: #248a3d;
    --color-focus: rgba(0, 125, 250, .28);
    --radius: 12px;
    --shadow-surface: 0 1px 2px rgba(0, 0, 0, .03), 0 8px 28px rgba(0, 0, 0, .045);
    --font-apple: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
}

html {
    color-scheme: light;
    background: var(--color-bg);
    -webkit-text-size-adjust: 100%;
}

body {
    background: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-apple);
    font-size: 16px;
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -.022em;
    font-synthesis: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

button,
input,
select,
textarea {
    font-family: inherit;
    letter-spacing: inherit;
}

a {
    color: var(--color-primary);
    text-underline-offset: .15em;
}

h1,
h2,
h3 {
    color: var(--color-text);
    font-weight: 600;
    letter-spacing: -.028em;
}

.site-header {
    border-bottom: 1px solid rgba(255, 255, 255, .1);
    background: rgba(29, 29, 31, .96);
    box-shadow: 0 1px 8px rgba(0, 0, 0, .08);
}

.brand,
.header-cart {
    font-weight: 600;
    letter-spacing: -.01em;
    text-decoration: none;
}

.panel,
.category-panel {
    border-color: rgba(0, 0, 0, .1);
    border-radius: 16px;
    box-shadow: var(--shadow-surface);
}

/* Apple-like visual layer */
:root {
    --color-bg: #f5f5f7;
    --color-surface: #fff;
    --color-text: #1d1d1f;
    --color-muted: #6e6e73;
    --color-border: #d2d2d7;
    --color-primary: #0071e3;
    --color-error: #d70015;
    --color-success: #248a3d;
    --radius: 12px;
    --font-apple: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Helvetica Neue", Arial, sans-serif;
}

html { color-scheme: light; background: var(--color-bg); -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-apple);
    font-size: 16px;
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -.022em;
    font-synthesis: none;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
button, input, select, textarea { font-family: inherit; letter-spacing: inherit; }
a { color: var(--color-primary); text-underline-offset: .15em; }
h1, h2, h3 { color: var(--color-text); font-weight: 600; letter-spacing: -.028em; }

.site-header {
    border-bottom: 1px solid rgba(255,255,255,.1);
    background: rgba(29,29,31,.96);
    box-shadow: 0 1px 8px rgba(0,0,0,.08);
}
.brand, .header-cart { font-weight: 600; letter-spacing: -.01em; text-decoration: none; }
.panel, .category-panel {
    border-color: rgba(0,0,0,.1);
    border-radius: 16px;
    box-shadow: 0 1px 2px rgba(0,0,0,.03), 0 8px 28px rgba(0,0,0,.045);
}
label { color: #424245; font-size: .9375rem; font-weight: 500; letter-spacing: -.012em; }
input, select, textarea {
    border-color: #c7c7cc;
    border-radius: 10px;
    outline: none;
    background: rgba(255,255,255,.92);
    color: var(--color-text);
    box-shadow: inset 0 1px 1px rgba(0,0,0,.025);
    transition: border-color .18s ease, box-shadow .18s ease;
}
input:hover, select:hover, textarea:hover { border-color: #aeaeb2; }
input:focus, select:focus, textarea:focus {
    border-color: var(--color-primary);
    background: #fff;
    box-shadow: 0 0 0 4px rgba(0,125,250,.28);
}
button, .button-link {
    border: 1px solid var(--color-primary);
    border-radius: 10px;
    background: var(--color-primary);
    color: #fff;
    font-weight: 500;
    letter-spacing: -.01em;
    box-shadow: 0 1px 2px rgba(0,0,0,.05);
    transition: background-color .18s ease, border-color .18s ease, transform .1s ease;
}
button:hover, .button-link:hover { border-color: #0077ed; background: #0077ed; color: #fff; }
button:active, .button-link:active { transform: scale(.985); }
button:focus-visible, .button-link:focus-visible, a:focus-visible {
    outline: 3px solid rgba(0,125,250,.28);
    outline-offset: 2px;
}
.button--secondary { border-color: #d2d2d7; background: #fff; color: var(--color-primary); box-shadow: none; }
.button--secondary:hover { border-color: #c7c7cc; background: #f5f5f7; color: #0077ed; }
.button--danger { border-color: var(--color-error); background: var(--color-error); }
.button--danger:hover { border-color: #b60012; background: #b60012; }
button:disabled { opacity: .42; transform: none; }

.address-card, .company-lookup, .company-preview, .member-row, .approval-card,
.order-facts div, .checkout fieldset, .address-choice, .product-gallery a {
    border-color: rgba(0,0,0,.1);
    border-radius: 12px;
}
.address-card--inactive, .company-preview, .attribute-table th { background: #f5f5f7; }
.category-link, .product-categories a { border-radius: 8px; }
.category-link:hover, .category-link--active { background: #e8f2ff; color: var(--color-primary); }
.notice { border: 1px solid #cfe5ff; border-radius: 12px; background: #edf6ff; }
.notice--error { border-color: #ffd1d5; background: #fff2f3; }
.notice--success { border-color: #ccebd3; background: #effaf2; }
.empty-state, .product-detail__placeholder {
    border-color: #c7c7cc;
    border-radius: 12px;
    background: rgba(255,255,255,.45);
}
.product-list, .product-row, .product-facts div, .attribute-table th, .attribute-table td,
.cart-table th, .cart-table td, .order-table th, .order-table td { border-color: rgba(0,0,0,.09); }
.product-main h2, .address-card h2, .company-preview h2, .member-row h2, .approval-card h2 {
    font-weight: 600;
    letter-spacing: -.02em;
}
.stock, .product-facts dd, .company-lookup legend, .status, .field-error,
.price, .order-facts dd, .cart-summary dd { font-weight: 600; }
.attribute-table, .cart-table, .order-table { font-variant-numeric: tabular-nums; }
::selection { background: rgba(0,113,227,.18); }

/* Compact purchase control: prevents round, overflowing cart buttons. */
.add-cart-form {
    display: grid;
    grid-template-columns: 64px minmax(104px, auto);
    justify-content: end;
    width: 100%;
}
.add-cart-form input { width: 64px; min-width: 0; }
.add-cart-form button {
    min-width: 104px;
    padding-inline: 1rem;
    border-radius: 10px;
    white-space: nowrap;
}

@media (min-width: 901px) {
    .product-row { grid-template-columns: 72px minmax(0, 1fr) 150px 190px; }
}

@media (min-width: 601px) and (max-width: 900px) {
    .product-row { grid-template-columns: 56px minmax(0, 1fr); }
    .product-image, .product-image img { width: 56px; height: 56px; }
    .price, .stock { grid-column: 2; text-align: left; }
    .add-cart-form { justify-content: start; width: auto; }
}

@media (max-width: 600px) {
    .add-cart-form { justify-content: start; width: auto; }
}

@media (prefers-reduced-motion: reduce) {
    button, .button-link, input, select, textarea { transition: none; }
}