/* LimitlessMind — catalogue (shop.html) + product detail (product.html)
 * Builds on shared/css/base.css tokens. Owner: CATALOGUE.
 */

/* ---------- tint (one neutral brand tint for every tile + vial liquid; change order 3: nothing is colour-coded by product group) ---------- */
.tint { --tint: var(--accent); }
.tile {
  background:
    linear-gradient(0deg, transparent 0 calc(100% - 1px), color-mix(in srgb, var(--tint) 22%, transparent) calc(100% - 1px)) 0 0 / 100% 18px,
    linear-gradient(90deg, transparent 0 calc(100% - 1px), color-mix(in srgb, var(--tint) 22%, transparent) calc(100% - 1px)) 0 0 / 18px 100%,
    linear-gradient(150deg, color-mix(in srgb, var(--tint) 18%, var(--surface)), color-mix(in srgb, var(--tint) 7%, var(--surface)));
}

/* ---------- vial illustration ---------- */
.vial { width: 100%; height: 100%; overflow: visible; }
.vial .v-cap   { fill: color-mix(in srgb, var(--ink) 78%, var(--tint)); }
.vial .v-crimp { fill: color-mix(in srgb, var(--ink) 55%, var(--surface)); }
.vial .v-glass { fill: color-mix(in srgb, var(--surface) 82%, var(--tint)); stroke: color-mix(in srgb, var(--ink) 30%, var(--tint)); stroke-width: 1.5; }
.vial .v-liquid{ fill: var(--tint); opacity: .9; }
.vial .v-menisc{ fill: color-mix(in srgb, var(--surface) 45%, var(--tint)); opacity: .7; }
.vial .v-label { fill: var(--surface); stroke: var(--line-strong); stroke-width: 1; }
.vial .v-shine { stroke: var(--surface); stroke-width: 3; stroke-linecap: round; opacity: .7; }
.vial .v-text  { font-family: var(--font-head); font-weight: 700; fill: var(--ink); }
.vial .v-sub   { font-family: var(--font-mono); fill: var(--muted); }
.vial .v-rule  { stroke: var(--accent); stroke-width: 2; }
.vial .v-shadow{ fill: color-mix(in srgb, var(--ink) 14%, transparent); }

/* ---------- shop page ---------- */
.shop-head { padding-top: 28px; padding-bottom: 8px; }
.shop-head h1 { margin-bottom: 4px; }
.shop-head .lead { margin: 0; }

.tier-banner {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 18px; padding: 12px 16px; border-radius: var(--radius);
  background: var(--accent-soft); color: var(--ink); font-size: 14px;
}
.tier-banner svg { width: 22px; height: 22px; flex: none; stroke: var(--accent); fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.tier-banner .steps { display: inline-flex; gap: 6px; flex-wrap: wrap; margin-left: auto; }
.tier-banner .steps span { font-family: var(--font-mono); font-size: 12.5px; padding: 2px 10px; border-radius: var(--radius-pill); background: var(--surface); border: 1px solid var(--line); }
body.is-partner .tier-banner { display: none; }

/* toolbar */
.toolbar {
  position: sticky; top: var(--header-h); z-index: 40;
  margin-top: 20px; padding: 12px 0 10px;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(10px); backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.toolbar__inner { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
/* "Skip to results": parked off-screen to the left (not clipped to 1px, so it keeps a real ≥44px box; negative left never adds scroll width), slides into the toolbar on keyboard focus */
.skip-results { position: absolute; left: -9999px; top: 8px; z-index: 41; display: inline-flex; align-items: center; min-height: 44px; padding: 0 18px; border-radius: var(--radius-pill); background: var(--accent); color: var(--accent-ink); font-weight: 700; font-size: 14px; text-decoration: none; box-shadow: var(--shadow); }
.skip-results:focus, .skip-results:focus-visible { left: 16px; outline: 2px solid var(--ink); outline-offset: 2px; }
.grid-shop:focus { outline: none; }
/* explicit order: #az/#ctl move in and out of the mobile sheet, so DOM order must not matter */
.search { order: 1; } .filter-toggle { order: 2; } .ctl { order: 3; } .partner-badge { order: 4; } .count { order: 5; } .az { order: 6; }
.ctl { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.search { position: relative; flex: 1 1 260px; max-width: 420px; min-width: 0; }
.search input { width: 100%; min-width: 0; }
.search svg { position: absolute; left: 12px; top: 50%; translate: 0 -50%; width: 18px; height: 18px; stroke: var(--muted); fill: none; stroke-width: 2; stroke-linecap: round; pointer-events: none; }
.search input { padding-left: 38px; padding-right: 48px; min-height: 44px; border-radius: var(--radius-pill); }
.search input::-webkit-search-cancel-button, .search input::-webkit-search-decoration { -webkit-appearance: none; appearance: none; display: none; }
.search .clear { position: absolute; right: 2px; top: 50%; translate: 0 -50%; width: 44px; height: 44px; border-radius: 50%; border: 0; background: transparent; color: var(--muted); display: grid; place-items: center; }
.search .clear:hover { background: var(--accent-soft); color: var(--accent); }
.search .clear[hidden] { display: none; }

.seg { display: inline-flex; padding: 3px; border: 1px solid var(--line-strong); border-radius: var(--radius-pill); background: var(--surface); }
.seg button { min-height: 36px; padding: 0 14px; border: 0; border-radius: var(--radius-pill); background: transparent; color: var(--muted); font-weight: 600; font-size: 13.5px; }
.seg button:hover { color: var(--accent); }
.seg button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.seg button:focus-visible { outline-offset: -2px; }

.sort { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--muted); font-weight: 600; }
.sort select { min-height: 44px; padding: 0 34px 0 14px; border: 1px solid var(--line-strong); border-radius: var(--radius-pill); background: var(--surface) no-repeat right 12px center / 12px; color: var(--ink); font-weight: 600; appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'><path d='M2 4l4 4 4-4' fill='none' stroke='%235D6C64' stroke-width='1.8' stroke-linecap='round'/></svg>"); }
.sort select:focus { outline: 2px solid var(--accent); outline-offset: 2px; }

.count { margin-left: auto; font-size: 13.5px; color: var(--muted); white-space: nowrap; font-variant-numeric: tabular-nums; }
.count b { color: var(--ink); font-weight: 600; }
.partner-badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: var(--radius-pill); background: var(--accent); color: var(--accent-ink); font-size: 12.5px; font-weight: 700; }
.partner-badge svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.partner-badge[hidden] { display: none; }

/* A–Z letter index: jump links to the first product starting with that letter (#letter=B). Letters with no product are inert. */
.az { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; flex-basis: 100%; margin-top: 2px; }
.az__lbl { font-size: 12.5px; font-weight: 600; color: var(--muted); margin-right: 6px; white-space: nowrap; }
.az__l {
  display: inline-flex; align-items: center; justify-content: center; min-width: 36px; min-height: 36px; padding: 0 6px;
  border: 1px solid transparent; border-radius: var(--radius-sm); background: transparent; color: var(--ink);
  font-family: var(--font-mono); font-size: 13.5px; font-weight: 600; text-decoration: none; white-space: nowrap;
}
a.az__l:hover { border-color: var(--accent); color: var(--accent); }
.az__l[aria-current="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.az__l.is-off { color: var(--muted); opacity: .35; }                                   /* no product starts with this letter */
.az__l[aria-disabled="true"] { color: var(--muted); opacity: .45; cursor: default; }   /* none visible under the current filters */
.toolbar.is-stuck .az { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
.toolbar.is-stuck .az::-webkit-scrollbar { display: none; }
.toolbar.is-stuck .az__l { min-height: 34px; }
/* the row fits the 1200px container (label + 27 × 40px); narrower, it becomes a scroll strip with a fade at the right edge */
@media (max-width: 1199px) {
  .toolbar.is-stuck .az { -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 56px), transparent); mask-image: linear-gradient(90deg, #000 calc(100% - 56px), transparent); padding-right: 56px; }
}

.filter-toggle { display: none; }

/* mobile filter sheet (lives in <body>, above the sticky header z-index 50; toast is 100) */
.fsheet { position: fixed; inset: 0; z-index: 90; display: flex; flex-direction: column; justify-content: flex-end; }
.fsheet__backdrop { position: absolute; inset: 0; background: color-mix(in srgb, var(--ink) 48%, transparent); animation: fade-in .2s ease; }
.fsheet__panel { position: relative; display: flex; flex-direction: column; max-height: 84vh; max-height: 84dvh; background: var(--surface); color: var(--ink);
  border-radius: 16px 16px 0 0; box-shadow: 0 -8px 40px color-mix(in srgb, var(--ink) 20%, transparent); padding-bottom: env(safe-area-inset-bottom); animation: sheet-in .24s ease; }
.fsheet__head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 10px 8px 20px; border-bottom: 1px solid var(--line); }
.fsheet__head h2 { font-size: 17px; margin: 0; }
.fsheet__head .btn { min-height: 44px; }
.fsheet__body { flex: 1; min-height: 0; overflow-y: auto; -webkit-overflow-scrolling: touch; padding: 16px 20px; display: flex; flex-direction: column; gap: 18px; }
.fsheet__lbl { font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin: 0 0 8px; }
.fsheet .az { order: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(44px, 1fr)); gap: 4px; }
.fsheet .az__lbl { display: none; }
.fsheet .az__l { min-width: 44px; min-height: 44px; }
.fsheet .ctl { order: 0; gap: 12px; }
.fsheet .sort { width: 100%; }
.fsheet .sort select { flex: 1; min-width: 0; }
.fsheet__foot { display: flex; gap: 10px; padding: 12px 20px; border-top: 1px solid var(--line); background: var(--surface); }
.fsheet__foot .btn { min-height: 48px; }
.fsheet__foot .btn-primary { flex: 1; }
body.sheet-open { overflow: hidden; }
@keyframes sheet-in { from { translate: 0 24px; opacity: .6; } to { translate: 0 0; opacity: 1; } }
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

/* grid */
.grid-shop { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 24px; }
@media (max-width: 1100px) { .grid-shop { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px)  { .grid-shop { grid-template-columns: 1fr; gap: 14px; } }

/* product card */
.pc { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-sm); overflow: hidden; transition: box-shadow .18s, border-color .18s, transform .18s; }
.pc:hover { box-shadow: var(--shadow); border-color: var(--line-strong); }
.pc[hidden] { display: none; }
.pc__tile { position: relative; height: 128px; display: grid; place-items: center; border-bottom: 1px solid var(--line); }
.pc__tile a { display: block; width: 100%; height: 100%; display: grid; place-items: center; text-decoration: none; }
.pc__tile .vial { width: 62px; height: 104px; transition: transform .25s; }
.pc:hover .pc__tile .vial { transform: translateY(-3px) rotate(-2deg); }
.pc__tile .strengths-n { position: absolute; right: 12px; top: 10px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-pill); padding: 2px 8px; }
.pc__body { display: flex; flex-direction: column; gap: 10px; padding: 14px 16px 16px; flex: 1; }
.pc__name { font-family: var(--font-head); font-weight: 700; font-size: 17px; letter-spacing: -.01em; line-height: 1.2; margin: 0; }
.pc__name a { color: var(--ink); text-decoration: none; display: inline-block; padding: 13px 0; margin: -13px 0; }   /* ≥44px hit height without moving layout */
.pc__name a:hover { color: var(--accent); }
.pc__from { font-size: 13px; color: var(--muted); margin: 0; }
.pc__from .price { color: var(--ink); }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { min-height: 34px; padding: 0 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font-family: var(--font-mono); font-size: 13px; font-weight: 500; }
.pill:hover { border-color: var(--accent); color: var(--accent); }
.pill[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: var(--bg); font-weight: 600; }
.pc .pills { margin-top: 2px; }

.formsel { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.formsel button { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; min-height: 48px; padding: 7px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); text-align: left; line-height: 1.2; }
.formsel button:hover { border-color: var(--accent); }
.formsel button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-soft); box-shadow: inset 0 0 0 1px var(--accent); }
.formsel .f-name { font-size: 12px; font-weight: 600; color: var(--muted); }
.formsel button[aria-pressed="true"] .f-name { color: var(--accent); }
.formsel .f-price { font-family: var(--font-mono); font-size: 14.5px; font-weight: 600; font-variant-numeric: tabular-nums; }
.formsel .f-price small { font-family: var(--font-body); font-size: 12px; color: var(--muted); font-weight: 500; margin-left: 2px; }

.tiers { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 6px; font-size: 12.5px; color: var(--muted); margin: 0; min-height: 22px; }
.tiers .t-lbl { font-weight: 600; margin-right: 2px; }
.tiers .t { display: inline-flex; gap: 5px; align-items: baseline; padding: 1px 8px; border-radius: var(--radius-pill); border: 1px solid var(--line); font-family: var(--font-mono); font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.tiers .t b { font-weight: 600; color: var(--ink); }
.tiers .t.is-active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.tiers .t.is-active b { color: var(--accent); }
.tiers .t-partner { font-weight: 600; color: var(--accent); }
body.is-partner .tiers .t, body.is-partner .tiers .t-lbl { display: none; }
body:not(.is-partner) .tiers .t-partner { display: none; }

.pc__buy { display: flex; gap: 8px; align-items: stretch; margin-top: auto; }
.pc__buy .qty { flex: none; }
.pc__buy .btn-primary { flex: 1; min-width: 0; padding-inline: 12px; }
.pc__buy .btn-primary .price { font-weight: 600; opacity: .9; }
.pc__foot { display: flex; justify-content: space-between; align-items: center; font-size: 13px; }
.pc__foot a { font-weight: 600; text-decoration: none; display: inline-flex; align-items: center; gap: 4px; padding: 13px 8px; margin: -13px -8px; }   /* ≥44px hit box */
.tbc { margin: 0; font-size: 12.5px; color: var(--muted); font-style: italic; display: flex; gap: 6px; align-items: center; }
.tbc::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--warn); flex: none; }
.pc__foot a svg { width: 14px; height: 14px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.pc__foot a:hover { text-decoration: underline; }
.pc__foot .kit-of { color: var(--muted); font-family: var(--font-mono); font-size: 12px; }
.pc.is-added { animation: pc-pop .45s ease; }
@keyframes pc-pop { 0% { transform: scale(1); } 30% { transform: scale(1.015); } 100% { transform: scale(1); } }

.qty button { width: 44px; min-height: 44px; }
.qty input { min-height: 44px; width: 48px; }

/* empty state */
.empty { grid-column: 1 / -1; text-align: center; padding: 56px 20px; border: 1px dashed var(--line-strong); border-radius: var(--radius); }
.empty[hidden] { display: none; }
.empty h2 { font-size: 22px; margin-bottom: 6px; }
.empty p { color: var(--muted); }
.empty .vial { width: 48px; height: 80px; margin: 0 auto 14px; }

/* ---------- toast ---------- */
.toast-region { position: fixed; left: 50%; bottom: 24px; translate: -50% 0; z-index: 100; display: flex; flex-direction: column; gap: 8px; align-items: center; width: min(92vw, 520px); pointer-events: none; }
.toast { display: flex; align-items: center; gap: 12px; padding: 12px 14px 12px 16px; border-radius: var(--radius); background: var(--ink); color: var(--bg); box-shadow: var(--shadow); font-size: 14.5px; pointer-events: auto; animation: toast-in .25s ease; max-width: 100%; }
.toast.is-leaving { animation: toast-out .25s ease forwards; }
.toast svg { width: 20px; height: 20px; flex: none; fill: none; stroke: var(--accent); stroke-width: 2.4; stroke-linecap: round; stroke-linejoin: round; }
.toast .toast__msg { flex: 1; min-width: 0; }
.toast a { color: var(--bg); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; white-space: nowrap; display: inline-block; padding: 12px 4px; margin: -12px -4px; }
.toast a:hover { color: var(--accent); }
@media (prefers-color-scheme: dark) { .toast svg { stroke: var(--accent); } }
@keyframes toast-in { from { opacity: 0; translate: 0 10px; } to { opacity: 1; translate: 0 0; } }
@keyframes toast-out { to { opacity: 0; translate: 0 10px; } }

/* ---------- product page ---------- */
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; font-size: 13.5px; color: var(--muted); padding-top: 18px; margin: 0; list-style: none; }
.crumbs a { color: var(--muted); text-decoration: none; display: inline-block; padding: 13px 8px; margin: -13px -8px; }
.crumbs a:hover { color: var(--accent); text-decoration: underline; }
.crumbs li + li::before { content: "/"; margin-right: 6px; opacity: .5; }
.crumbs li:last-child { color: var(--ink); font-weight: 600; }

.pdp { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 40px; align-items: start; margin-top: 16px; }
.pdp__hero { position: sticky; top: calc(var(--header-h) + 20px); border-radius: 16px; border: 1px solid var(--line); overflow: hidden; aspect-ratio: 1 / 1.02; display: grid; place-items: center; }
.pdp__hero .vial { width: 46%; height: auto; max-height: 82%; filter: drop-shadow(0 18px 24px color-mix(in srgb, var(--ink) 18%, transparent)); }
.pdp__hero .hero-tag { position: absolute; left: 18px; top: 16px; display: flex; gap: 8px; flex-wrap: wrap; }
.pdp__hero .hero-tag .badge { background: var(--surface); border: 1px solid var(--line); color: var(--ink); }
.pdp__hero .hero-foot { position: absolute; left: 18px; right: 18px; bottom: 16px; display: flex; justify-content: space-between; font-family: var(--font-mono); font-size: 12px; color: var(--muted); }

.pdp__info { display: flex; flex-direction: column; gap: 18px; }
.pdp__info h1 { margin: 0; font-size: clamp(30px, 3.4vw, 42px); }
.pdp__meta { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.pdp__rou { display: inline-flex; align-items: center; gap: 8px; font-size: 13.5px; color: var(--warn); font-weight: 600; }
.pdp__rou svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.opt { display: flex; flex-direction: column; gap: 8px; }
.opt__label { display: flex; justify-content: space-between; align-items: baseline; font-size: 13.5px; font-weight: 600; }
.opt__label .val { font-weight: 500; color: var(--muted); font-family: var(--font-mono); font-size: 12.5px; }
.pdp .pill { min-height: 44px; padding: 0 16px; font-size: 14px; }
.pdp .qty { width: max-content; }
.pdp .formsel button { min-height: 60px; padding: 9px 14px; }
.pdp .formsel .f-price { font-size: 17px; }
.pdp .formsel .f-name { font-size: 13px; }

.pricebox { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; align-items: end; padding: 16px 18px; border-radius: var(--radius); background: var(--bg); border: 1px solid var(--line); }
.pricebox .u { font-size: 13.5px; color: var(--muted); }
.pricebox .u .price { color: var(--ink); }
.pricebox .tot { text-align: right; }
.pricebox .tot .price { font-size: 30px; font-weight: 700; letter-spacing: -.02em; display: block; line-height: 1; }
.pricebox .tot .lbl { font-size: 12.5px; color: var(--muted); }
.pricebox .tierhint { grid-column: 1 / -1; font-size: 13px; color: var(--accent); font-weight: 600; margin: 0; min-height: 18px; }
.pricebox .tierhint.is-muted { color: var(--muted); font-weight: 500; }
.pricebox .pb-partner { display: inline-flex; margin-bottom: 6px; background: var(--accent); color: var(--accent-ink); }
.pricebox .tbc { grid-column: 1 / -1; }
.bb-partner { display: inline-flex; background: var(--accent); color: var(--accent-ink); font-size: 12px; line-height: 1.5; padding: 0 8px; margin-bottom: 2px; }
.bb-partner[hidden] { display: none; }

.tiertable { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: 14px; }
.tiertable th, .tiertable td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.tiertable th { font-size: 12px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); font-weight: 600; background: var(--bg); }
.tiertable tr:last-child td { border-bottom: 0; }
.tiertable td.price, .tiertable th.r { text-align: right; }
.tiertable td.price { font-size: 15px; }
.tiertable .save { color: var(--muted); font-size: 12.5px; font-family: var(--font-mono); }
.tiertable tr.is-active td { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.tiertable tr.is-active td.price { font-weight: 700; }
.tiertable tr.is-active .save { color: var(--accent); }
.tiertable tr.is-active td:first-child::before { content: "●"; font-size: 9px; margin-right: 8px; vertical-align: middle; }
.tiertable tr:not(.is-active) td:first-child { padding-left: 34px; }
.tiertable caption { text-align: left; caption-side: top; font-size: 13.5px; font-weight: 600; margin-bottom: 8px; }
.tiertable caption span { font-weight: 400; color: var(--muted); }
.tiertable-wrap[hidden] { display: none; }

.pdp__cta { display: flex; flex-direction: column; gap: 10px; }
.pdp__cta .btn-lg { width: 100%; }
.pdp__cta .go-bag { animation: toast-in .25s ease; }
.pdp__cta .go-bag[hidden] { display: none; }
.pdp__notes { font-size: 13.5px; color: var(--muted); display: grid; gap: 6px; padding: 0; margin: 0; list-style: none; }
.pdp__notes li { display: flex; gap: 8px; align-items: flex-start; }
.pdp__notes svg { width: 16px; height: 16px; flex: none; margin-top: 3px; fill: none; stroke: var(--accent); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* product content accordion */
.acc { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__item summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 52px; padding: 8px 0; cursor: pointer; list-style: none; font-family: var(--font-head); font-weight: 600; font-size: 15.5px; color: var(--ink); }
.acc__item summary::-webkit-details-marker { display: none; }
.acc__item summary::after { content: ""; width: 9px; height: 9px; flex: none; margin-right: 6px; border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted); rotate: 45deg; transition: rotate .18s; }
.acc__item[open] summary::after { rotate: -135deg; translate: 0 3px; }
.acc__item summary:hover { color: var(--accent); }
.acc__item summary:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 6px; }
.acc__body { padding: 0 0 16px; font-size: 14.5px; color: var(--muted); }
.acc__body p { margin: 0 0 8px; }
.acc__body p:last-child { margin-bottom: 0; }
.acc__body em { font-style: normal; color: var(--ink); font-weight: 600; }
.acc__tiers { display: flex; flex-wrap: wrap; gap: 6px; }
.acc__tiers span { font-family: var(--font-mono); font-size: 13px; padding: 3px 10px; border: 1px solid var(--line); border-radius: var(--radius-pill); color: var(--ink); white-space: nowrap; }
.acc__tiers b { font-weight: 600; color: var(--muted); }
.acc__partner { color: var(--accent); font-weight: 600; }

/* sticky bottom bar (mobile) */
.buybar { display: none; }

/* related */
.related { margin-top: 56px; }
.related h2 { font-size: 22px; margin-bottom: 4px; }
.related .sub { color: var(--muted); margin: 0 0 16px; font-size: 14px; }
.related__row { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.rc { display: flex; flex-direction: column; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; text-decoration: none; color: var(--ink); transition: box-shadow .18s, transform .18s; }
.rc:hover { box-shadow: var(--shadow); color: var(--ink); }
.rc:hover .vial { transform: translateY(-3px) rotate(-2deg); }
.rc__tile { height: 110px; display: grid; place-items: center; border-bottom: 1px solid var(--line); }
.rc__tile .vial { width: 50px; height: 86px; transition: transform .25s; }
.rc__body { padding: 12px 14px 14px; }
.rc__name { font-family: var(--font-head); font-weight: 700; font-size: 15px; margin: 0 0 4px; }
.rc__from { font-size: 12.5px; color: var(--muted); margin: 0; }
.rc__n { display: block; font-size: 12px; color: var(--muted); margin-top: 2px; font-family: var(--font-mono); }
.rc__from .price { color: var(--ink); }

/* not found */
.notfound { text-align: center; padding: 64px 20px; max-width: 520px; margin: 0 auto; }
.notfound .vial { width: 64px; height: 108px; margin: 0 auto 18px; }
.notfound code { font-family: var(--font-mono); background: var(--accent-soft); padding: 2px 8px; border-radius: 6px; }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .pdp { grid-template-columns: 1fr; gap: 24px; }
  .pdp__hero { position: relative; top: auto; aspect-ratio: 16 / 10; }   /* relative: stays the containing block for .hero-tag/.hero-foot (static let them escape onto the buy row); top:auto: the desktop sticky offset must not become a relative offset */
  .pdp__hero .vial { width: 34%; height: auto; max-height: 50%; }
  .related__row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .buybar {
    display: flex; align-items: center; gap: 12px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 60;
    padding: 10px 16px calc(10px + env(safe-area-inset-bottom)); background: color-mix(in srgb, var(--surface) 94%, transparent);
    -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); border-top: 1px solid var(--line);
    translate: 0 0; transition: translate .2s ease;
  }
  .buybar.is-hidden { translate: 0 110%; }
  .buybar .bb-info { flex: 1; min-width: 0; line-height: 1.2; }
  .buybar .bb-info .price { font-size: 20px; font-weight: 700; display: block; }
  .buybar .bb-info small { color: var(--muted); font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; display: block; }
  .buybar .btn { flex: none; min-width: 150px; min-height: 48px; }
  body.has-buybar { padding-bottom: calc(var(--buybar-h, 76px) + 12px); }
  /* toast sits above the buy bar while the bar is on screen: bar height (incl. safe-area padding) + 12px */
  body.buybar-shown .toast-region { bottom: calc(var(--buybar-h, 76px) + 12px); }
}

/* 641–900px, stuck only: the 3-row toolbar (search / unit+sort / letters) took >25% of a 700px-tall viewport together with the
   header. Once stuck it compacts to two rows — search | count | unit  and  letter strip | sort — nothing is hidden. */
@media (min-width: 641px) and (max-width: 900px) {
  .toolbar.is-stuck { padding: 6px 0 6px; }
  .toolbar.is-stuck .toolbar__inner { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 6px 12px; align-items: center; }
  .toolbar.is-stuck .ctl { display: contents; }
  .toolbar.is-stuck .search { grid-area: 1 / 1; max-width: none; }
  .toolbar.is-stuck .search input { padding-block: 0; }   /* 44px row (the base .input padding made it 47px) */
  .toolbar.is-stuck .count { grid-area: 1 / 2; margin-left: 0; }
  .toolbar.is-stuck .seg { grid-area: 1 / 3; justify-self: end; }
  .toolbar.is-stuck .az { grid-area: 2 / 1 / 3 / 3; margin-top: 0; min-width: 0; }
  .toolbar.is-stuck .sort { grid-area: 2 / 3; justify-self: end; }
  .toolbar.is-stuck .sort select { min-height: 40px; }
  .toolbar.is-stuck .partner-badge { grid-area: 3 / 1 / 4 / -1; justify-self: start; }
}

@media (max-width: 640px) {
  .shop-head { padding-top: 20px; }
  .tier-banner { font-size: 13.5px; gap: 10px; padding: 10px 12px; }
  .tier-banner .steps { margin-left: 0; }
  .toolbar { padding: 10px 0 8px; }
  /* one row: search | Filter · n (never wraps); unit/sort/letter index live in the bottom sheet */
  .toolbar__inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 8px; align-items: center; }
  .search { max-width: none; }
  .filter-toggle { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; padding: 0 14px; border-radius: var(--radius-pill); white-space: nowrap; }
  .filter-toggle svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
  .filter-toggle[aria-expanded="true"] { border-color: var(--accent); color: var(--accent); }
  .toolbar .az, .toolbar .ctl, .toolbar .count { display: none; }
  .seg button { min-height: 44px; min-width: 44px; padding: 0 16px; }   /* "iu" was 43px wide */
  .pc__name a { min-width: 44px; padding: 13px 8px; margin: -13px -8px; }   /* short names (VIP, EPO, KPV…) were <44px wide; text position unchanged */
  .seg { padding: 0; }
  .pill { min-height: 44px; padding: 0 14px; }
  .partner-badge { grid-column: 1 / -1; justify-content: center; min-height: 32px; }
  .pc__tile { height: 112px; }
  .pc__buy .btn-primary { font-size: 14.5px; }
  .pdp__info h1 { font-size: 30px; }
  .related__row { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
  .rc__tile { height: 96px; }
  .pricebox { padding: 14px; }
  .pricebox .tot .price { font-size: 26px; }
}