/* ==========================================================================
   store.css — the "storefront" dialect for the e-commerce page.
   White shop surface, product tiles, a cart (the project brief), a platform
   comparison, an order-tracker process and an FAQ, the way a good store lays
   things out.
   ========================================================================== */

.page-store { background: #fff; --shop-inner: 64px; --shop-h: calc(var(--shop-inner) + 1px); }
/* The site's top bar stays pinned here too (base.css). The shop header pins directly under it, and a jump to a section
   lands clear of both: this margin adds to the page-wide scroll-padding for the site bar, minus its 20px gap. */
.page-store [id] { scroll-margin-top: calc(var(--shop-h) - 20px); }
.tone-shopify { --tone-strong: #7ea63a; }
.tone-bigc { --tone-strong: #3d63dd; }
.tone-woo { --tone-strong: #7f54b3; }
.tone-magento { --tone-strong: #e8641e; }
.tone-headless { --tone-strong: var(--ink); }

/* ---------- Shop header ---------- */
.shop-head { position: sticky; top: var(--strip-h); z-index: 80; background: #fff; border-bottom: 1px solid var(--line); }
.shop-head-inner { display: flex; align-items: center; gap: 28px; height: var(--shop-inner); }
.shop-brand { display: inline-flex; align-items: baseline; gap: 10px; font-size: 18px; font-weight: 600; letter-spacing: -0.02em; }
.shop-brand small { font: 500 12px/1 var(--mono); color: var(--ink-3); letter-spacing: 0; }
.shop-nav { display: flex; gap: 24px; margin-left: 14px; font-size: 15px; }
.shop-nav a { padding: 6px 0; border-bottom: 1px solid transparent; }
.shop-nav a:hover { border-bottom-color: var(--ink); }
.cart-btn { margin-left: auto; display: inline-flex; align-items: center; gap: 10px; height: 40px; padding: 0 14px; border: 1px solid var(--ink); border-radius: var(--r); font-weight: 500; font-size: 15px; transition: background-color 0.15s, color 0.15s; }
.cart-btn:hover { background: var(--ink); color: var(--paper); }
.cart-btn .ic { font-size: 18px; }
.cart-btn .count { min-width: 20px; height: 20px; padding: 0 5px; border-radius: 10px; background: var(--accent); color: #fff; font: 600 11px/20px var(--mono); text-align: center; }

/* ---------- Hero ---------- */
.shop-hero { padding: clamp(36px, 5vw, 64px) 0 0; }
.shop-hero-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.shop-hero h1 { font-size: clamp(2.2rem, 4.7vw, 4rem); line-height: 1.02; letter-spacing: -0.038em; margin: 14px 0 20px; }
.shop-hero .lede { max-width: 46ch; }
.shop-ctas { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.shop-plats { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 26px; font: 500 13px/1 var(--mono); color: var(--ink-2); }
.shop-plats span { display: inline-flex; align-items: center; gap: 7px; }
.shop-plats .link { color: var(--ink-3); }
.shop-plats i { width: 10px; height: 10px; display: inline-block; background: var(--tone-strong); }

/* annotated wireframe */
.wf { border: 1px solid var(--ink); border-radius: var(--r-lg); background: #fff; overflow: hidden; box-shadow: 8px 8px 0 var(--paper-2); }
.wf-bar { display: flex; align-items: center; gap: 6px; height: 28px; padding: 0 10px; background: var(--paper); border-bottom: 1px solid var(--line-2); }
.wf-bar i { width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); }
.wf-bar span { margin-left: 8px; padding: 2px 10px; border: 1px solid var(--line); border-radius: 10px; background: #fff; font: 11px/1.4 var(--mono); color: var(--ink-3); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.wf-bar .wf-tag { margin-left: auto; display: inline-flex; align-items: center; gap: 6px; }
.wf-bar .wf-tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--good); }
.wf-page { padding: 16px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.wf-nav { display: flex; align-items: center; gap: 12px; height: 24px; }
.wf-logo { width: 54px; height: 10px; background: var(--ink); }
.wf-nav b { display: block; width: 30px; height: 5px; background: var(--line-2); }
.wf-nav .cartdot { margin-left: auto; width: 18px; height: 18px; border: 1.5px solid var(--ink); border-radius: 3px; }
.wf-main { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 16px; }
.wf-img { aspect-ratio: 1 / 1; border: 1px solid var(--line-2); background: repeating-linear-gradient(135deg, #ebe7dc 0 9px, #f4f1ea 9px 18px); }
.wf-info { display: grid; gap: 11px; align-content: start; min-width: 0; }
.wf-title { height: 15px; width: 78%; background: var(--ink); }
.wf-price { height: 10px; width: 30%; background: var(--accent); }
.wf-line { height: 6px; background: var(--line-2); }
.wf-line.s { width: 62%; }
.wf-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.wf-chips i { width: 28px; height: 20px; border: 1px solid var(--line-2); }
.wf-chips i:first-child { border-color: var(--ink); background: var(--paper); }
.wf-stock { display: flex; align-items: center; gap: 7px; }
.wf-stock::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--good); }
.wf-stock b { height: 6px; width: 50%; background: var(--line-2); display: block; }
.wf-atc { height: 34px; background: var(--ink); }
.wf-pay { display: flex; flex-wrap: wrap; gap: 6px; }
.wf-pay i { width: 26px; height: 16px; border: 1px solid var(--line-2); border-radius: 2px; }
.wf-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.wf-row i { aspect-ratio: 1 / 0.8; background: var(--paper); border: 1px solid var(--line); }
.wf-r { position: relative; transition: opacity 0.2s, outline-color 0.2s; outline: 2px solid transparent; outline-offset: 4px; }
.wf.has-hot .wf-r { opacity: 0.35; }
.wf.has-hot .wf-r.is-hot { opacity: 1; outline-color: var(--accent); }
.pin { position: absolute; top: -10px; left: -10px; z-index: 2; font-style: normal; display: grid; place-items: center; width: 20px; height: 20px; border-radius: 50%; background: var(--ink); color: #fff; font: 600 11px/1 var(--mono); transition: background-color 0.2s; }
.wf-r.is-hot .pin { background: var(--accent); }
.wf-bar .wf-r { opacity: 1 !important; }
.wf-bar .wf-tag { overflow: visible; }
.wf-tag .pin { top: 50%; left: -12px; transform: translateY(-50%); }

/* legend under the hero */
.usp { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); margin-top: clamp(32px, 4vw, 52px); border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.usp button { text-align: left; padding: 18px 18px 20px 0; border-right: 1px solid var(--line); background: none; transition: background-color 0.15s; }
.usp button + button { padding-left: 18px; }
.usp button:last-child { border-right: 0; }
.usp button:hover, .usp button.is-hot { background: var(--paper); }
.usp .n { display: inline-grid; place-items: center; width: 20px; height: 20px; margin-bottom: 8px; border-radius: 50%; background: var(--ink); color: #fff; font: 600 11px/1 var(--mono); }
.usp button.is-hot .n { background: var(--accent); }
.usp b { display: block; font-size: 15.5px; font-weight: 600; letter-spacing: -0.01em; }
.usp span.d { display: block; margin-top: 2px; color: var(--ink-2); font-size: 14px; line-height: 1.45; }

/* ---------- Sections ---------- */
.shop-sec { padding: clamp(56px, 8vw, 104px) 0 0; }
.shop-sec:last-of-type { padding-bottom: clamp(56px, 8vw, 104px); }
.shop-sec-head { display: flex; flex-wrap: wrap; align-items: end; justify-content: space-between; gap: 16px 32px; margin-bottom: 26px; }
.shop-sec-head h2 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); letter-spacing: -0.035em; }
.shop-sec-head p { max-width: 52ch; color: var(--ink-2); font-size: 16px; }
.eyebrow { display: block; margin-bottom: 10px; font: 500 12px/1 var(--mono); color: var(--accent-ink); }

/* ---------- References ---------- */
.client-cloud { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 22px 46px; padding: clamp(26px, 4vw, 42px) 0; border-top: 1px solid var(--ink); border-bottom: 1px solid var(--line); }
.client-cloud .client { display: flex; align-items: center; min-height: 40px; }
.client-cloud .client-name { font: 600 clamp(1.05rem, 1.7vw, 1.35rem)/1.2 var(--sans); letter-spacing: -0.02em; white-space: nowrap; }
.refs-plain { color: var(--ink-2); font-size: 16px; }

/* ---------- The stack (directory) ---------- */
.stack-tools { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 24px; margin-bottom: 18px; }
.stack-search { position: relative; flex: 1 1 320px; max-width: 480px; }
.stack-search .ic { position: absolute; left: 13px; top: 50%; transform: translateY(-50%); font-size: 18px; color: var(--ink-3); pointer-events: none; }
.stack-search input { width: 100%; height: 46px; padding: 0 14px 0 42px; border: 1px solid var(--ink); border-radius: var(--r); background: #fff; font-size: 16px; }
.stack-search input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.stack-count { font: 12.5px/1.4 var(--mono); color: var(--ink-3); }
.stack { border-top: 1px solid var(--ink); }
.stack-group { display: flex; align-items: center; justify-content: space-between; padding: 11px 14px; background: var(--paper); border-bottom: 1px solid var(--line); font: 500 12px/1 var(--mono); letter-spacing: 0.02em; color: var(--ink-2); }
.layer { display: grid; grid-template-columns: minmax(0, 300px) minmax(0, 1fr); gap: 14px clamp(24px, 4vw, 56px); padding: 22px 0 24px; border-bottom: 1px solid var(--line); }
.layer-head { display: grid; grid-template-columns: 34px minmax(0, 1fr); }
.layer-n { padding-top: 5px; font: 500 12px/1 var(--mono); color: var(--accent-ink); }
.layer h3 { font-size: 18px; letter-spacing: -0.015em; }
.layer h3 small { margin-left: 8px; font: 500 12px/1 var(--mono); letter-spacing: 0; color: var(--ink-3); }
.layer-head p { margin-top: 4px; color: var(--ink-2); font-size: 14.5px; line-height: 1.5; }
.layer-body { display: grid; gap: 14px; align-content: start; min-width: 0; }
.grp { margin: 0 0 7px; font: 500 11.5px/1 var(--mono); color: var(--ink-3); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chips li { padding: 6px 11px; border: 1px solid var(--line-2); border-radius: var(--r); background: #fff; font-size: 14px; line-height: 1.3; transition: background-color 0.15s, border-color 0.15s; }
.chips li.hit { background: var(--accent-wash); border-color: var(--accent); }
.stack-empty { margin-top: 18px; padding: 18px; border: 1px dashed var(--line-2); color: var(--ink-2); font-size: 15px; }

/* ---------- Catalog ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.filter { height: 36px; padding: 0 14px; border: 1px solid var(--line-2); border-radius: var(--r); font-size: 14px; font-weight: 500; transition: background-color 0.15s, color 0.15s, border-color 0.15s; }
.filter:hover { border-color: var(--ink); }
.filter[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.result-count { font: 12.5px/1 var(--mono); color: var(--ink-3); margin-left: 6px; }
.catalog { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.prod { display: flex; flex-direction: column; border: 1px solid var(--line); background: #fff; transition: border-color 0.15s; }
.prod:hover { border-color: var(--ink); }
.prod-img { position: relative; aspect-ratio: 4 / 3; display: grid; place-items: center; background: #f3f1eb; border-bottom: 1px solid var(--line); }
.prod-img .il { width: 80%; }
.prod-sku { position: absolute; top: 10px; left: 12px; font: 500 11px/1 var(--mono); color: var(--ink-3); }
.prod-body { display: flex; flex: 1; flex-direction: column; gap: 8px; padding: 16px 16px 16px; }
.prod h3 { font-size: 17px; letter-spacing: -0.015em; }
.prod p { color: var(--ink-2); font-size: 14.5px; line-height: 1.5; }
.specs { margin-top: 4px; border-top: 1px solid var(--line); }
.specs li { padding: 6px 0; border-bottom: 1px solid var(--line); font: 12.5px/1.45 var(--mono); color: var(--ink-2); }
.prod-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 12px; }
.prod-foot small { font: 11.5px/1.4 var(--mono); color: var(--ink-3); }
.add { display: inline-flex; align-items: center; gap: 6px; height: 36px; padding: 0 12px; border: 1px solid var(--ink); border-radius: var(--r); font-size: 14px; font-weight: 500; white-space: nowrap; transition: background-color 0.15s, color 0.15s; }
.add:hover, .add[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.add .ic { font-size: 16px; }
.il { width: 100%; height: auto; stroke: var(--ink); stroke-width: 1.5; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.il .w { fill: #fff; } .il .t { fill: #e7e3d8; } .il .a { fill: var(--accent); stroke: none; } .il .k { fill: var(--ink); stroke: none; } .il .ws { fill: var(--accent-wash); stroke: none; } .il .d { stroke-dasharray: 3 4; }
.il .as { stroke: var(--accent); } .il text { fill: var(--ink); stroke: none; font: 500 10px var(--mono); }

/* ---------- Compare ---------- */
.chooser { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px 28px; margin-bottom: 26px; }
.chooser fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
.chooser legend { margin-bottom: 8px; padding: 0; font-weight: 600; font-size: 15px; }
.opts { display: grid; gap: 6px; }
.opt { position: relative; }
.opt input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.opt span { display: block; padding: 10px 12px; border: 1px solid var(--line-2); border-radius: var(--r); font-size: 14.5px; transition: background-color 0.15s, border-color 0.15s; }
.opt input:hover + span { border-color: var(--ink); }
.opt input:checked + span { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
.pick { display: grid; grid-template-columns: minmax(200px, 300px) minmax(0, 1fr); gap: 12px clamp(24px, 4vw, 48px); align-items: start; margin-bottom: 28px; padding: 20px 22px; border: 1px solid var(--ink); background: var(--paper); }
.pick .label { display: block; margin-bottom: 6px; }
.pick b { display: block; font-size: 28px; letter-spacing: -0.035em; line-height: 1.1; }
.pick ul { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 28px; font-size: 14.5px; color: var(--ink-2); }
.pick li { padding-left: 16px; position: relative; }
.pick li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 7px; height: 7px; background: var(--accent); }
.cmp-scroll { overflow-x: auto; }
table.cmp { width: 100%; min-width: 900px; border-top: 1px solid var(--ink); }
.cmp th, .cmp td { padding: 14px 16px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; font-size: 15px; line-height: 1.45; }
.cmp thead th { font-size: 19px; letter-spacing: -0.02em; }
.cmp tbody th { width: 140px; font: 500 12px/1.6 var(--mono); color: var(--ink-3); }
.cmp tbody th, .cmp thead td { position: sticky; left: 0; z-index: 1; background: #fff; }
.chooser-now { display: none; }
.cmp .sug { background: #fbf6ee; }
.cmp thead .sug { box-shadow: inset 0 3px 0 var(--accent); }
.cmp thead .sug::after { content: "suggested"; display: block; width: max-content; margin-top: 4px; padding: 1px 6px; background: var(--accent); color: #fff; font: 500 11px/1.5 var(--mono); letter-spacing: 0; }

/* ---------- Process (order tracker) ---------- */
.track { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 24px; counter-reset: st; }
.track > li { position: relative; padding-top: 26px; border-top: 3px solid var(--line); }
.track > li::before { content: ""; position: absolute; top: -3px; left: 0; height: 3px; width: 0; background: var(--accent); animation: fill 12s linear infinite; animation-delay: calc(var(--i) * 3s); }
@keyframes fill { 0% { width: 0; } 25% { width: 100%; } 99% { width: 100%; } 100% { width: 0; } }
.track .st { display: block; margin-bottom: 8px; font: 500 12px/1 var(--mono); color: var(--accent-ink); }
.track h3 { font-size: 1.25rem; letter-spacing: -0.02em; }
.track p { margin-top: 6px; color: var(--ink-2); font-size: 15px; }
.track .tags { margin-top: 12px; }
.split { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; margin-top: 44px; border: 1px solid var(--ink); }
.split > div { padding: 22px 24px; }
.split > div + div { border-left: 1px solid var(--ink); background: var(--paper); }
.split h3 { font-size: 1.05rem; margin-bottom: 10px; }
.split ul { display: grid; gap: 8px; }
.split li { position: relative; padding-left: 18px; color: var(--ink-2); font-size: 15px; }
.split li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 8px; height: 2px; background: var(--ink); }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--ink); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 0; font-size: 1.1rem; font-weight: 500; letter-spacing: -0.01em; cursor: pointer; list-style: none; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ic { font-size: 20px; flex: none; transition: transform 0.2s; }
.faq details[open] summary .ic { transform: rotate(45deg); }
.faq details p { max-width: 70ch; padding: 0 0 22px; color: var(--ink-2); font-size: 16px; }

/* ---------- Checkout CTA + footer ---------- */
.checkout { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; padding: clamp(28px, 4vw, 44px); background: var(--ink); color: var(--paper); }
.checkout h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); letter-spacing: -0.035em; }
.checkout p { margin-top: 8px; color: #c9c3b4; max-width: 50ch; }
.checkout .btn { border-color: var(--paper); color: var(--paper); }
.checkout .btn:hover { background: var(--paper); color: var(--ink); }
.checkout .btn-primary { background: var(--paper); color: var(--ink); }
.checkout .btn-primary:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.checkout-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.shop-foot { margin-top: clamp(56px, 8vw, 96px); border-top: 1px solid var(--ink); background: var(--paper); }
.shop-foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; padding: 40px 0 32px; }
.shop-foot h3 { margin-bottom: 12px; font: 500 12px/1 var(--mono); color: var(--ink-3); letter-spacing: 0.02em; }
.shop-foot li { padding: 4px 0; font-size: 15px; }
.shop-foot a:hover { color: var(--accent-ink); text-decoration: underline; text-underline-offset: 3px; }
.shop-foot .about { max-width: 34ch; color: var(--ink-2); font-size: 15px; }
.shop-foot .wrap.foot-meta { padding-block: 16px 32px; border-top: 1px solid var(--line); }

/* ---------- Brief drawer ---------- */
.drawer { position: fixed; inset: 0; z-index: 250; }
.drawer-scrim { position: absolute; inset: 0; background: rgba(21, 19, 15, 0.45); }
.drawer-panel { position: absolute; top: 0; right: 0; bottom: 0; width: min(440px, 100%); display: flex; flex-direction: column; background: #fff; border-left: 1px solid var(--ink); animation: slide 0.22s ease-out; }
@keyframes slide { from { transform: translateX(24px); opacity: 0; } }
.drawer-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--line); }
.drawer-head h2 { font-size: 1.25rem; letter-spacing: -0.02em; }
.icon-btn { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--line-2); border-radius: var(--r); }
.icon-btn:hover { border-color: var(--ink); }
.drawer-body { flex: 1; overflow-y: auto; padding: 18px 20px; }
.brief-empty { color: var(--ink-2); font-size: 15px; }
.brief-list { border-top: 1px solid var(--line); }
.brief-list li { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); font-weight: 500; }
.brief-list small { display: block; font: 400 12px/1.4 var(--mono); color: var(--ink-3); }
.brief-list button { display: grid; place-items: center; width: 30px; height: 30px; border-radius: var(--r); color: var(--ink-3); }
.brief-list button:hover { background: var(--paper); color: var(--ink); }
.field { display: grid; gap: 6px; margin-top: 18px; }
.field label { font-size: 14px; font-weight: 500; }
.field input, .field select, .field textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line-2); border-radius: var(--r); background: #fff; font-size: 15px; }
.field textarea { min-height: 96px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--accent); outline-offset: 0; border-color: var(--ink); }
.drawer-foot { display: grid; gap: 10px; padding: 16px 20px 20px; border-top: 1px solid var(--line); }
.drawer-foot .fine { color: var(--ink-3); font-size: 13px; }

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .catalog { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .chooser { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .shop-foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .shop-hero-grid { grid-template-columns: minmax(0, 1fr); }
  .usp { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .usp button, .usp button + button { padding: 16px 14px 16px 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .layer { grid-template-columns: minmax(0, 1fr); padding: 18px 0 20px; }
  .pick { grid-template-columns: minmax(0, 1fr); }
  .track { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; }
  .shop-nav { display: none; }
  .checkout { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 620px) {
  .page-store { --shop-inner: 52px; }   /* two bars are pinned now, so the shop header gives some height back on a phone */
  .catalog { grid-template-columns: minmax(0, 1fr); }
  .chooser { grid-template-columns: minmax(0, 1fr); gap: 16px; }
  .chooser-now { display: flex; align-items: baseline; gap: 10px; position: sticky; top: calc(var(--strip-h) + var(--shop-h)); z-index: 4; margin: 0 calc(var(--gutter) * -1) 18px; padding: 10px var(--gutter); background: var(--paper); border-bottom: 1px solid var(--ink); font: 500 12px/1 var(--mono); color: var(--ink-3); }
  .chooser-now b { font: 600 17px/1 var(--sans); letter-spacing: -0.02em; color: var(--ink); }
  .opts { gap: 4px; }
  .opt span { padding: 8px 12px; }
  .chips { gap: 5px; }
  .chips li { padding: 5px 9px; font-size: 13.5px; }
  .layer { padding: 16px 0 18px; }
  .cmp th, .cmp td { padding: 12px; }
  .cmp tbody th { width: 96px; min-width: 96px; font-size: 11px; }
  .pick ul { grid-template-columns: minmax(0, 1fr); }
  .stack-search { flex-basis: 100%; max-width: none; }
  .wf-page { padding: 12px; gap: 12px; }
  .wf-bar span:not(.wf-tag) { display: none; }
  .split { grid-template-columns: minmax(0, 1fr); }
  .split > div + div { border-left: 0; border-top: 1px solid var(--ink); }
  .track { grid-template-columns: minmax(0, 1fr); }
  .usp { grid-template-columns: minmax(0, 1fr); }
  .shop-foot-grid { grid-template-columns: minmax(0, 1fr); }
  .shop-brand small { display: none; }
  .cart-btn span.t { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .track > li::before { animation: none; width: 100%; background: var(--line-2); }
}