/* ─── /shop and /sets ─── */
.shop-hero{padding:34px 0 22px;border-bottom:var(--edge) solid var(--line)}
.shop-hero h1{font-size:clamp(2.2rem,5.4vw,3.6rem);margin:10px 0 12px}
.shop-hero .lede{max-width:52ch;font-size:1rem;opacity:.82}

.shop-layout{display:grid;grid-template-columns:250px minmax(0,1fr);
  gap:34px;align-items:start;padding:26px 0 0}
.shop-side{position:sticky;top:86px;align-self:start;display:flex;flex-direction:column;gap:20px;
  max-height:calc(100vh - 106px);overflow-y:auto;overscroll-behavior:contain;
  padding-right:6px;scrollbar-width:thin}
.shop-side::-webkit-scrollbar{width:6px}
.shop-side::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:999px}
.shop-main{min-width:0}
.side-block{display:flex;flex-direction:column;align-items:flex-start;gap:10px}

.searchbox{position:relative;width:100%}
.searchbox svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);
  width:17px;height:17px;opacity:.45;pointer-events:none}
.searchbox input{
  width:100%;padding:12px 14px 12px 38px;border-radius:12px;
  border:var(--edge) solid var(--line-2);background:var(--paper);
  font-family:var(--body);font-size:.94rem;color:var(--ink);
  box-shadow:var(--sh-1);transition:border-color .18s ease,box-shadow .18s ease}
.searchbox input:focus{outline:none;border-color:var(--blue);
  box-shadow:0 0 0 3px rgba(27,79,216,.14)}

.shop-sort label{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.55}
.shop-sort select{width:100%;
  padding:11px 12px;border-radius:12px;border:var(--edge) solid var(--line-2);
  background:var(--paper);font-family:var(--body);font-size:.88rem;color:var(--ink)}

.filter-row{display:flex;flex-wrap:wrap;gap:8px}
.filter-row .flabel{font-family:var(--mono);font-size:.62rem;letter-spacing:.14em;
  text-transform:uppercase;opacity:.55;width:100%}
.filter-chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-family:var(--body);font-size:.82rem;font-weight:500;
  padding:8px 13px;border-radius:999px;cursor:pointer;
  border:var(--edge) solid var(--line-2);background:var(--paper);color:var(--ink);
  transition:background .16s ease,border-color .16s ease,color .16s ease}
.chip:hover{border-color:var(--blue-lt)}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}

.shop-meta{display:flex;justify-content:space-between;align-items:center;gap:12px;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  opacity:.62;padding:0 0 18px}
#shopReset{align-self:flex-start;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;
  text-transform:uppercase;background:none;border:0;cursor:pointer;padding:0;
  color:var(--blue);text-decoration:underline;text-underline-offset:3px}

@media(max-width:900px){
  .shop-layout{grid-template-columns:1fr;gap:18px}
  .shop-side{position:static;max-height:none;overflow:visible;padding-right:0}
}

.shop-grid{padding-bottom:64px}
.shop-empty{padding:60px 0 90px;text-align:center}
.shop-empty h3{font-size:1.4rem;margin-bottom:8px}
.shop-empty p{opacity:.7}

.avail{
  display:inline-block;font-family:var(--mono);font-size:.6rem;letter-spacing:.12em;
  text-transform:uppercase;padding:4px 8px;border-radius:6px;margin-left:6px;
  border:1px solid var(--line-2);background:var(--shell);color:var(--mute)}
.av-in-stock{color:#12603A;background:#E7F6EE;border-color:#BFE5D0}
.av-low-stock{color:#8A5B00;background:var(--yellow-lt);border-color:#F0DCA6}
.av-pre-order{color:var(--blue-deep);background:var(--sky);border-color:#C6D8FF}
.av-sold-out{color:#8A2018;background:#FCEAE7;border-color:#F3C9C3}

.card .avail,.bundle .avail{margin-left:8px;vertical-align:middle}
.bundle .card-note{font-size:.84rem;opacity:.75;margin:-6px 0 14px}
.addcart[disabled]{opacity:.45;cursor:not-allowed}

@media(max-width:640px){
  .filter-row .flabel{min-width:100%;margin-bottom:2px}
  .chip{font-size:.76rem;padding:7px 11px}
}

/* the card is a flex column, so the badge would otherwise stretch full width */
.card > .avail,.bundle > .avail{align-self:flex-start;margin:9px 0 0}
.card > .tag + .avail,.bundle > .tag + .avail{margin-top:9px}
.bundle .card-note{margin:4px 0 14px}

/* ─── /lab-results ─── */
.coa-tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:20px 0 6px}
.coa-tools .searchbox{flex:1 1 320px}
.coa-table-wrap{overflow-x:auto;border:var(--edge) solid var(--line);border-radius:14px;background:#fff}
table.coa{width:100%;border-collapse:collapse;min-width:760px;font-size:.95rem}
table.coa th{text-align:left;font-family:'Space Mono',monospace;font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;opacity:.6;padding:14px 16px;border-bottom:var(--edge) solid var(--line);white-space:nowrap}
table.coa td{padding:14px 16px;border-bottom:1px solid rgba(0,0,0,.07);vertical-align:middle}
table.coa tr:last-child td{border-bottom:0}
table.coa tbody tr:hover{background:rgba(27,79,216,.04)}
.coa-name{display:block;font-weight:700}
.coa-sub{display:block;font-size:.8rem;opacity:.62;margin-top:2px}
.coa-flag{display:inline-block;padding:3px 10px;border-radius:999px;font-family:'Space Mono',monospace;
  font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;background:rgba(24,140,90,.12);color:#0f6a45}
.coa-flag.warn{background:rgba(240,60,46,.12);color:#a2261b}
.coa-view{border:var(--edge) solid var(--ink);background:#fff;border-radius:999px;padding:7px 14px;
  font-weight:700;font-size:.85rem;cursor:pointer;white-space:nowrap}
.coa-view:hover{background:var(--ink);color:#fff}
.coa-empty{padding:40px 0;text-align:center;opacity:.75}

/* certificate overlay */
.coa-modal{position:fixed;inset:0;z-index:80;background:rgba(12,14,20,.55);
  display:flex;align-items:flex-start;justify-content:center;padding:28px 16px;overflow:auto}
.coa-modal[hidden]{display:none}
.coa-sheet{background:#fff;border-radius:16px;max-width:720px;width:100%;position:relative;
  box-shadow:0 30px 80px rgba(0,0,0,.3)}
.coa-sheet-bar{display:flex;gap:10px;justify-content:flex-end;padding:12px 14px;
  border-bottom:1px solid rgba(0,0,0,.08);position:sticky;top:0;background:#fff;border-radius:16px 16px 0 0}
.coa-print,.coa-close{border:var(--edge) solid var(--ink);background:#fff;border-radius:999px;
  padding:7px 14px;font-weight:700;cursor:pointer;font-size:.85rem}
.coa-print:hover,.coa-close:hover{background:var(--ink);color:#fff}
.coa-doc{padding:26px 28px 30px}
.coa-doc-top{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding-bottom:14px;border-bottom:var(--edge) solid var(--line)}
.coa-doc h3{font-size:1.6rem;margin:18px 0 8px}
.coa-doc h4{font-family:'Space Mono',monospace;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  opacity:.6;margin:24px 0 10px}
.coa-doc-lede{font-size:.95rem;opacity:.8;max-width:60ch}
.coa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 24px}
.coa-line{display:flex;justify-content:space-between;gap:14px;padding:9px 0;
  border-bottom:1px dashed rgba(0,0,0,.14);font-size:.9rem}
.coa-line span{opacity:.62}
.coa-line b{text-align:right}
.coa-verdict{margin-top:22px;padding:14px 16px;border-radius:12px;font-weight:700;
  background:rgba(24,140,90,.1);color:#0f6a45}
.coa-verdict.warn{background:rgba(240,60,46,.1);color:#a2261b}
.coa-doc-note{margin-top:16px;font-size:.82rem;opacity:.65}
@media(max-width:640px){
  .coa-grid{grid-template-columns:1fr}
  table.coa{min-width:0}
  table.coa thead{display:none}
  table.coa tr{display:block;border-bottom:var(--edge) solid var(--line);padding:8px 0}
  table.coa td{display:flex;justify-content:space-between;gap:14px;border:0;padding:7px 14px}
  table.coa td::before{content:attr(data-l);font-family:'Space Mono',monospace;font-size:.7rem;
    letter-spacing:.06em;text-transform:uppercase;opacity:.55}
}
@media print{
  body>*{display:none!important}
  .coa-modal{display:block!important;position:static;background:#fff;padding:0;overflow:visible}
  .coa-sheet{box-shadow:none;max-width:none}
  .coa-sheet-bar{display:none}
}

/* ─── /science ─── */
.sci-hero{padding:34px 0 26px;border-bottom:var(--edge) solid var(--line)}
.sci-hero h1{font-size:clamp(2.2rem,5.4vw,3.6rem);margin:10px 0 12px}
.sci-hero .lede{max-width:58ch}
.sci-toc{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.sci-toc a{border:var(--edge) solid var(--line);border-radius:999px;padding:7px 14px;
  font-size:.85rem;font-weight:600;text-decoration:none;color:inherit}
.sci-toc a:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.sci-body{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));margin-top:8px}
.sci-body .panel p{font-size:.94rem;opacity:.85}
.sci-prose{max-width:68ch}
.sci-prose p{margin:0 0 14px;opacity:.86}
table.spec{width:100%;border-collapse:collapse;font-size:.92rem;background:#fff;
  border:var(--edge) solid var(--line);border-radius:14px;overflow:hidden}
table.spec th{text-align:left;font-family:'Space Mono',monospace;font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;opacity:.6;padding:13px 16px;border-bottom:var(--edge) solid var(--line)}
table.spec td{padding:13px 16px;border-bottom:1px solid rgba(0,0,0,.07)}
table.spec tr:last-child td{border-bottom:0}
.spec-wrap{overflow-x:auto}
.sci-refs{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.sci-refs li{padding:12px 14px;border:var(--edge) solid var(--line);border-radius:12px;
  background:#fff;font-size:.9rem}
.sci-refs b{display:block}

/* ─── cart slide-over ─── */
body.cart-lock{overflow:hidden}
.cart-scrim{position:fixed;inset:0;z-index:90;background:rgba(12,14,20,.45)}
.cart-panel{position:fixed;top:0;right:0;bottom:0;width:min(420px,100%);z-index:91;
  background:var(--paper,#fff);display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .28s cubic-bezier(.22,.7,.2,1);
  box-shadow:-24px 0 60px rgba(0,0,0,.18)}
.cart-panel.on{transform:none}
.cart-head{display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:var(--edge) solid var(--line)}
.cart-head .mono{font-family:var(--mono);font-size:.7rem;letter-spacing:.14em;text-transform:uppercase;opacity:.65}
.cart-x{background:none;border:0;font-size:1.7rem;line-height:1;cursor:pointer;color:inherit}

.cart-ship{padding:16px 20px;border-bottom:1px dashed var(--line-2);background:var(--shell,#f6f6f4)}
.cart-ship p{font-size:.92rem;margin:0 0 9px}
.cart-bar{height:7px;border-radius:999px;background:rgba(0,0,0,.09);overflow:hidden}
.cart-bar i{display:block;height:100%;background:var(--blue);border-radius:999px;transition:width .3s ease}
.cart-ship .mono{display:block;margin-top:7px;font-family:var(--mono);font-size:.62rem;
  letter-spacing:.1em;text-transform:uppercase;opacity:.5}

.cart-body{flex:1;overflow:auto;padding:6px 20px}
.cart-line{padding:16px 0;border-bottom:1px solid rgba(0,0,0,.08);display:flex;gap:12px;align-items:flex-start}
.cart-line-main{flex:1;min-width:0}
.cart-thumb{flex:0 0 58px;width:58px;height:76px;display:flex;align-items:center;justify-content:center;gap:2px;background:rgba(0,0,0,.04);border:1px solid rgba(0,0,0,.07);border-radius:8px;overflow:hidden;padding:4px}
.cart-thumb .vial{width:100%;height:100%;max-width:46px}
.cart-line-top{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}
.cart-line-top b{display:block;font-size:1rem}
.cart-sub{display:block;font-size:.8rem;opacity:.6;margin-top:3px}
.cart-rm{background:none;border:0;font-size:1.25rem;line-height:1;cursor:pointer;opacity:.45}
.cart-rm:hover{opacity:1}
.cart-line-bot{display:flex;justify-content:space-between;align-items:center;margin-top:12px}
.qty{display:inline-flex;align-items:center;gap:2px;border:var(--edge) solid var(--line-2);border-radius:999px;overflow:hidden}
.qty button{background:none;border:0;cursor:pointer;padding:6px 12px;font-size:1rem;line-height:1}
.qty button:hover{background:rgba(0,0,0,.05)}
.qty span{min-width:26px;text-align:center;font-family:var(--mono);font-size:.85rem}
.cart-line-p{font-size:1rem}
.cart-empty{padding:52px 0;text-align:center}
.cart-empty h3{font-size:1.2rem;margin-bottom:6px}
.cart-empty p{opacity:.7;margin-bottom:18px}

.cart-foot{padding:12px 20px 14px;border-top:var(--edge) solid var(--line);background:var(--paper,#fff)}
.cart-codewrap{margin:0 0 10px}
.cart-code-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:8px;background:none;border:0;padding:2px 0;font-family:var(--body);font-size:.8rem;color:var(--ink);opacity:.75;cursor:pointer;text-align:left}
.cart-code-toggle:hover{opacity:1}
.cart-code-toggle i{font-style:normal;font-size:1rem;line-height:1}
.cart-codewrap.open .cart-code-toggle i{transform:rotate(45deg)}
.cart-code{display:flex;gap:8px;margin-top:0}
.cart-codewrap.open .cart-code{display:flex}
.cart-code input{flex:1;padding:9px 12px;border-radius:12px;border:var(--edge) solid var(--line-2);
  background:var(--paper,#fff);font-family:var(--body);font-size:.9rem;color:var(--ink)}
.cart-code input:focus{outline:none;border-color:var(--blue)}
.cart-code button{border:var(--edge) solid var(--ink);background:none;border-radius:12px;
  padding:0 16px;font-weight:700;cursor:pointer;font-size:.88rem}
.cart-code button:hover{background:var(--ink);color:#fff}
.cart-code-msg{font-size:.76rem;margin:6px 0 0;color:#a2261b}
.cart-code-msg:empty{display:none}
.cart-code-msg.ok{color:#0f6a45}
.cart-link{color:inherit;text-decoration:none;display:block}
.cart-link:hover b{text-decoration:underline}
a.cart-thumb{cursor:pointer}
.cart-addon{position:relative;margin:14px 0 4px;padding:12px;border-radius:12px;background:#EFEFF1;border:1px dashed var(--line-2)}

.cart-addon-row{display:flex;align-items:center;gap:10px}
.cart-addon-thumb{flex:0 0 auto;width:42px;height:42px;display:grid;place-items:center;background:#fff;border:1px solid var(--line-2);border-radius:8px;overflow:hidden}
.cart-addon-thumb svg{width:100%;height:100%}
.cart-addon-txt{flex:1 1 auto;min-width:0;display:grid;gap:3px}
.cart-addon-txt b{font-size:.88rem;display:flex;justify-content:space-between;gap:8px}
.cart-addon-txt b i{font-style:normal;font-variant-numeric:tabular-nums}
.cart-addon-txt span{font-size:.75rem;line-height:1.35;opacity:.65}
.cart-addon-add{flex:0 0 auto;align-self:center;border:1.5px solid var(--ink);background:transparent;color:var(--ink);border-radius:999px;padding:7px 16px;font-weight:700;font-size:.8rem;cursor:pointer}
.cart-addon-add:hover{background:var(--ink);color:#fff}
.cart-prot{display:flex;align-items:center;gap:10px;padding:9px 11px;margin:0 0 10px;border:2px solid var(--line-2);border-radius:12px;cursor:pointer;background:transparent;transition:border-color .15s,background .15s}
.cart-prot.on{border-color:#1f5fd8;background:rgba(31,95,216,.05)}
.cart-prot-ico{flex:0 0 auto;width:30px;height:30px;display:grid;place-items:center;border:1px solid var(--line-2);border-radius:8px;color:#1f5fd8}
.cart-prot-ico svg{width:17px;height:17px}
.cart-prot-txt{flex:1 1 auto;min-width:0;display:grid;gap:3px}
.cart-prot-txt b{font-size:.85rem;display:flex;justify-content:space-between;gap:8px}
.cart-prot-txt b i{font-style:normal;font-variant-numeric:tabular-nums}
.cart-prot-txt span{font-size:.72rem;line-height:1.3;opacity:.6;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cart-switch{flex:0 0 auto;width:36px;height:20px;border-radius:999px;background:var(--line-2);position:relative;transition:background .15s}
.cart-switch i{position:absolute;top:2px;left:2px;width:16px;height:16px;border-radius:50%;background:#fff;transition:transform .15s}
.cart-prot.on .cart-switch{background:#1f5fd8}
.cart-prot.on .cart-switch i{transform:translateX(16px)}
.cart-sum{margin:0 0 4px;display:grid;gap:3px}
.cart-sum-x{margin:0 0 10px;display:grid;gap:3px}
.cart-sum-x div{display:flex;justify-content:space-between;font-size:.8rem}
.cart-sum-x span{opacity:.65}
.cart-tax-note{margin:2px 0 6px;font-size:.68rem;line-height:1.35;opacity:.55}
.cart-sum div{display:flex;justify-content:space-between;font-size:.8rem}
.cart-sum .sub{font-size:.95rem;font-weight:700}
.cart-sum .sub span{opacity:1;font-weight:700}
.cart-sum .sub b{font-weight:700}
.cart-sum span{opacity:.65}
.cart-sum .off b{color:#0f6a45}
.cart-sum .tot{margin-top:6px;padding-top:7px;border-top:1px solid rgba(18,20,27,.12);font-size:.92rem}
.cart-sum .tot span{opacity:1;font-weight:600}
.cart-sum .tot b{font-weight:700}
.cart-checkout{width:100%;text-align:center;justify-content:center;display:flex;align-items:center;gap:10px}
.cart-checkout i{font-style:normal;font-weight:700;font-variant-numeric:tabular-nums}
.cart-note{margin-top:8px;text-align:center;font-family:var(--mono);font-size:.6rem;
  letter-spacing:.1em;text-transform:uppercase;opacity:.5}

/* science: compound reference */
.cmp-group{margin:34px 0 14px;font-size:1.05rem;letter-spacing:.06em;text-transform:uppercase;opacity:.72}
.panel.cmp{display:flex;flex-direction:column}
.panel.cmp .cmp-meta{font-size:.72rem;letter-spacing:.06em;opacity:.6;margin:2px 0 8px}
.panel.cmp .cite{margin-top:auto;padding-top:12px;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;text-decoration:underline;text-underline-offset:3px}

/* ---- Science page navigation & compound search ---- */
.sci-nav{position:sticky;top:58px;z-index:30;margin:0 0 12px;background:color-mix(in oklab,var(--bg,#f6f3ee) 88%,transparent);backdrop-filter:blur(10px);border-top:1px solid rgba(0,0,0,.08);border-bottom:1px solid rgba(0,0,0,.08)}
.sci-nav-inner{display:flex;align-items:center;gap:16px;padding:10px 0}
.sci-nav-label{font-size:.66rem;letter-spacing:.14em;text-transform:uppercase;opacity:.5;white-space:nowrap}
.sci-nav-links{display:flex;gap:6px;overflow-x:auto;scrollbar-width:none}
.sci-nav-links::-webkit-scrollbar{display:none}
.sci-nav-links a{white-space:nowrap;font-size:.8rem;padding:7px 13px;border-radius:999px;border:1px solid rgba(0,0,0,.12);text-decoration:none;color:inherit;opacity:.72;transition:background .18s,opacity .18s,border-color .18s}
.sci-nav-links a:hover{opacity:1;border-color:rgba(0,0,0,.3)}
.sci-nav-links a.is-active{opacity:1;background:currentColor;border-color:transparent}
.sci-nav-links a.is-active{color:#12100e}
.sci-nav-links a.is-active{background:rgba(18,16,14,.92);color:#f6f3ee}
.cmp-tools{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin:0 0 20px}
.cmp-search{position:relative;flex:1 1 320px;max-width:460px}
.cmp-search svg{position:absolute;left:13px;top:50%;transform:translateY(-50%);width:16px;height:16px;opacity:.45;pointer-events:none}
.cmp-search input{width:100%;padding:12px 14px 12px 38px;border-radius:999px;border:1px solid rgba(0,0,0,.16);background:rgba(255,255,255,.7);font:inherit;font-size:.9rem;color:inherit}
.cmp-search input:focus{outline:none;border-color:rgba(0,0,0,.45)}
.cmp-count{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;opacity:.55}
.cmp-empty{opacity:.6;padding:24px 0}
#basics,#compounds,#synthesis,#assays,#specs,#handling,#stability,#glossary,#refs{scroll-margin-top:118px}
@media (max-width:640px){.sci-nav-label{display:none}.sci-nav-inner{padding:8px 0}.sci-nav{top:52px}}

/* ---- Science page: breathing room ---- */
.sci-body{gap:20px;margin-top:16px}
.sci-body .panel{padding:24px 24px 22px}
.sci-body .panel h3{margin:0 0 6px;line-height:1.25}
.sci-body .panel p{margin:0 0 10px;line-height:1.6}
.sci-body .panel p:last-of-type{margin-bottom:0}
.panel.cmp .cmp-meta{margin:0 0 12px}
.panel.cmp .cite{padding-top:16px}
.cmp-group{margin:52px 0 18px}
.cmp-group:first-of-type{margin-top:8px}
#compounds .sci-prose{margin-bottom:26px}
.sci-prose+.steps,.steps{margin-top:34px !important}
.sci-refs li{margin-bottom:12px;line-height:1.6}
table.spec th,table.spec td{padding:15px 18px}
.sci-nav+section,.sci-nav+#basics{padding-top:56px}

/* ─── clickable cards ─────────────────────────────────────────────── */
.card{position:relative}
.card .card-go{position:absolute;inset:0;z-index:1;border-radius:inherit}
.card .addcart,.card button{position:relative;z-index:2}
/* the vial art sits at the same layer as the overlay link, so let clicks pass
   through to the link instead of landing on the SVG */
.card .vialbox,.card .pairbox,.card .vialbox *,.card .pairbox *{pointer-events:none}
.card:hover .card-go+.vialbox{transform:none}


/* ─── product detail page ─────────────────────────────────────────── */
.crumbs{display:flex;gap:8px;align-items:center;font-size:.72rem;
  letter-spacing:.06em;text-transform:uppercase;opacity:.75;margin:0 0 22px}
.crumbs a{color:inherit;text-decoration:none;border-bottom:1px solid var(--line-2)}
.crumbs span{opacity:.45}

.pdp{display:grid;grid-template-columns:minmax(0,440px) minmax(0,1fr);
  gap:56px;align-items:start;padding-bottom:64px}
.pdp-art{background:var(--tint,#F4F6FA);border:1px solid var(--line-2);
  border-radius:18px;padding:26px;display:flex;justify-content:center;gap:14px;
  position:sticky;top:104px}
.pdp-art svg{width:100%;max-width:220px;height:auto}
.pdp-art-pair svg{max-width:170px}

.pdp-chain{margin:0 0 26px}
.pdp-chain .stack{margin:0}
.pdp-chain-row{display:flex;align-items:flex-start;gap:14px;margin-bottom:12px;flex-wrap:wrap}
.pdp-chain-row>.mono{font-size:.66rem;letter-spacing:.08em;text-transform:uppercase;opacity:.7;min-width:120px;padding-top:1px}

.pdp-info h1{margin:14px 0 10px;line-height:1.05}
.pdp-info .lede{margin:0 0 24px}

.pdp-facts{list-style:none;margin:0 0 30px;padding:20px 0;display:grid;gap:12px;
  border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);font-size:.76rem}
.pdp-facts li{display:flex;justify-content:space-between;gap:18px}
.pdp-facts span{opacity:.6;letter-spacing:.06em;text-transform:uppercase}
.pdp-facts b{text-align:right}

.pdp-block{margin-bottom:26px}
.pdp-block h4{margin:0 0 12px;font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;opacity:.7;font-weight:700}
.pdp-hint{opacity:.6;text-transform:none;letter-spacing:0}
.pdp-opts{display:flex;flex-wrap:wrap;gap:10px}
.pdp-opts .chip i{font-style:normal;margin-left:7px;opacity:.75;font-size:.9em}
.pdp-single{opacity:.75;margin:0}

.pdp-qty{display:inline-flex;align-items:center;margin-top:14px;
  border:2px solid var(--ink);border-radius:100px;overflow:hidden}
.pdp-qty button{width:40px;height:40px;border:0;background:transparent;
  font-size:1.1rem;cursor:pointer;color:inherit}
.pdp-qty input{width:56px;height:40px;border:0;text-align:center;
  font-family:var(--mono);font-size:.9rem;background:transparent;color:inherit;
  -moz-appearance:textfield}
.pdp-qty input::-webkit-outer-spin-button,
.pdp-qty input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

.pdp-buy{display:flex;flex-wrap:wrap;align-items:center;gap:18px;
  padding-top:22px;border-top:1px solid var(--line-2)}
.pdp-price{display:flex;flex-direction:column;gap:4px}
.pdp-price .price{font-size:2rem;padding:0}
.pdp-unit{font-size:.74rem;opacity:.7}
.pdp-unit b{opacity:1}
.pdp-add{flex:1;min-width:200px;margin:0}
.pdp-note{margin-top:20px;font-size:.72rem;opacity:.7;line-height:1.7}
.pdp-note a{color:inherit}

@media(max-width:900px){
  .pdp{grid-template-columns:1fr;gap:30px}
  .pdp-art{position:static;padding:20px}
  .pdp-art svg{max-width:170px}
}

/* ─── PDP: continue browsing rail ──────────────────────────────────── */
.pdp-more{margin:72px 0 20px;border-top:2px solid var(--ink);padding-top:34px}
.pdp-more-head{display:flex;align-items:flex-end;gap:18px;flex-wrap:wrap;margin-bottom:32px}
.pdp-more-head .mono{font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;opacity:.7;
  width:100%;margin:0 0 6px}
.pdp-more-head h2{margin:0;font-size:1.9rem;line-height:1.05}
.pdp-more-tools{margin-left:auto;display:flex;align-items:center;gap:10px;flex:0 0 auto}
.railbtn{width:38px;height:38px;flex:0 0 38px;padding:0;border:2px solid var(--ink);border-radius:999px;
  background:transparent;cursor:pointer;font-size:1rem;line-height:1;display:grid;place-items:center}
.railbtn:hover{background:var(--ink);color:#fff}
.rail{display:grid;grid-auto-flow:column;grid-auto-columns:minmax(240px,268px);gap:22px;align-items:stretch;
  overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:10px;scrollbar-width:thin}
.rail-card{scroll-snap-align:start;position:relative;display:flex;flex-direction:column}
.rail-card h3{font-size:1.05rem;margin:8px 0 6px}
.rail-card .card-note{margin-bottom:14px}
.rail-card .addcart{margin-top:auto}
.rail-card .price{margin-top:6px}
.rail-card .vialbox,.rail-card .pairbox{min-height:150px}
@media(max-width:640px){
  .pdp-more-head{align-items:center;gap:12px}
  .pdp-more-head h2{font-size:1.5rem;flex:1 1 auto;min-width:0}
  .pdp-more-tools{margin-left:0;width:100%;justify-content:space-between;order:3}
  .pdp-more-tools .btn{order:-1;margin-right:auto}
  .railbtn{width:42px;height:42px;flex:0 0 42px}
  .rail{grid-auto-columns:minmax(200px,72%)}
  /* one rhythm for every rail card regardless of what it carries: chains,
     a blend label, or a stack list. Price is the flex spacer so the
     spec row and button always land at the same height on both cards. */
  .rail-card{padding:16px}
  .rail-card .vialbox,.rail-card .pairbox{margin:-16px -16px 12px;min-height:132px}
  .rail-card .tag{margin-bottom:0}
  .rail-card h3{margin:10px 0 0;font-size:1rem}
  .rail-card .stack{margin:10px 0 0;min-height:32px;align-content:flex-start}
  .rail-card ul{margin:10px 0 0}
  .rail-card .card-note{display:none}
  .rail-card .price{margin-top:auto;padding-top:14px}
  .rail-card .spec{margin-top:10px;padding-top:10px}
  .rail-card .addcart{margin-top:12px}
}



/* ─── PDP: trust badges ──────────────────────────────────────────────
   Same card language as the "six things your supplier should prove"
   grid: framed panel, icon in a bordered tile, title, then copy. */
.pdp-badges{list-style:none;margin:26px 0 0;padding:0;border:0;
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.pdp-badges li{
  border:var(--edge,2px) solid var(--line);border-radius:16px;
  box-shadow:var(--sh-2);background:var(--paper);
  padding:20px 20px 18px;display:block}
.pdp-badge-ico{
  display:flex;align-items:center;justify-content:center;
  width:42px;height:42px;margin-bottom:14px;
  border:1px solid var(--line);border-radius:12px;background:var(--paper)}
.pdp-badge-ico svg{width:20px;height:20px;color:var(--blue)}
.pdp-badges b{display:block;font-family:var(--display);font-weight:800;
  font-size:1rem;letter-spacing:-.01em;text-transform:none;line-height:1.25;margin-bottom:7px}
.pdp-badges span:not(.pdp-badge-ico){display:block;font-size:.9rem;line-height:1.45;opacity:.82}
@media(max-width:760px){
  .pdp-badges{grid-template-columns:1fr;gap:14px}
  .pdp-badges li{padding:18px 18px 16px}
}

/* ─── /shop: stacks promo band ─── */
.stack-promo{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:24px;align-items:center;
  margin:22px 0 4px;padding:26px 28px;border-radius:18px;
  border:var(--edge) solid var(--line-2);box-shadow:var(--sh-1);overflow:hidden;
  background:linear-gradient(120deg,#F6F8FF 0%,#FFFFFF 58%,#FFF7E6 100%)}
.stack-promo-copy .eyebrow{margin-bottom:8px}
.stack-promo-copy h2{font-size:clamp(1.25rem,2.2vw,1.7rem);line-height:1.15;margin:0 0 8px;max-width:22ch}
.stack-promo-copy p{font-size:.92rem;opacity:.75;max-width:46ch;margin:0 0 16px}
.stack-promo-copy .promo-note{font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;opacity:.6;margin:0 0 14px}
.stack-promo-art{display:flex;justify-content:flex-end;align-items:center;gap:22px;min-height:132px}
.stack-promo-art .promo-pair{gap:10px}
.promo-pair{display:flex;align-items:flex-end;gap:6px}
.stack-promo-art img,.stack-promo-art svg{height:118px;width:auto;display:block}
@media(max-width:900px){
  .stack-promo{grid-template-columns:1fr;padding:22px 20px;text-align:left}
  .stack-promo-art{justify-content:flex-start;gap:16px;min-height:0}
  .stack-promo-art img,.stack-promo-art svg{height:92px}
}

/* ─── checkout page ─── */
.checkout{padding-bottom:60px}
.co-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:34px;align-items:start;margin-top:26px}
.co-block{border:var(--edge) solid var(--line-2);border-radius:18px;padding:18px 18px 20px;margin:0 0 16px;background:#fff}
.co-block legend{font-family:var(--head);font-weight:700;font-size:1rem;padding:0 6px}
.co-f{display:block;margin:0 0 12px}
.co-f span{display:block;font-size:.78rem;opacity:.7;margin:0 0 5px}
.co-f input,.co-f select{width:100%;padding:11px 13px;border-radius:12px;border:var(--edge) solid var(--line-2);background:#fff;font-family:var(--body);font-size:.9rem;color:var(--ink)}
.co-f input:focus,.co-f select:focus{outline:none;border-color:var(--blue)}
.co-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px}
.co-opts{display:grid;gap:10px}
.co-opt{display:flex;align-items:center;gap:12px;padding:12px 14px;border:var(--edge) solid var(--line-2);border-radius:14px;cursor:pointer}
.co-opt.on{border-color:var(--ink)}
.co-opt-txt{flex:1;display:grid}
.co-opt-txt i{font-style:normal;font-size:.78rem;opacity:.65}
.co-opt-p{font-variant-numeric:tabular-nums}
.co-payopts{margin-bottom:16px}
.co-payfields{display:grid;gap:12px}
.co-payhint{font-size:.8rem;opacity:.7;line-height:1.5;margin:0}
.co-secure{display:flex;gap:8px;align-items:flex-start;font-size:.78rem;opacity:.7;margin:0 0 14px}
.co-secure svg{width:16px;height:16px;flex:0 0 auto;margin-top:1px}
.co-check{display:flex;gap:10px;align-items:flex-start;font-size:.82rem;margin:0 0 14px}
.co-check input{margin-top:3px}
.co-err{color:#a2261b;font-size:.82rem;margin:0 0 10px}
.co-pay{width:100%;justify-content:center;text-align:center}
.co-side{position:sticky;top:96px;margin-top:11px}
.co-sum{border:var(--edge) solid var(--line-2);border-radius:18px;padding:18px;background:#fff}
.co-sum-h{font-size:1rem;margin:0 0 12px}
.co-lines{display:grid;gap:12px;margin:0 0 14px;padding:0 0 12px;border-bottom:1px solid rgba(18,20,27,.1)}
.co-line{display:flex;gap:12px;align-items:center}
.co-thumb{position:relative;display:flex;gap:2px;width:52px;flex:0 0 auto}
.co-thumb svg{width:100%;height:auto}
.co-q{position:absolute;top:-6px;right:-8px;min-width:18px;height:18px;border-radius:9px;background:var(--ink);color:#fff;font-size:.68rem;display:flex;align-items:center;justify-content:center;padding:0 5px}
.co-line-t{flex:1;display:grid}
.co-line-t span{font-size:.75rem;opacity:.6}
.co-line-p{font-variant-numeric:tabular-nums;font-size:.85rem}
.co-trust{list-style:none;padding:14px 0 0;margin:12px 0 0;border-top:1px solid rgba(18,20,27,.1);display:grid;gap:6px;font-size:.78rem;opacity:.72}
.co-sum-empty{text-align:center;display:grid;gap:8px;justify-items:center}
.co-done{max-width:560px;margin:40px auto 80px;text-align:center;display:grid;gap:12px;justify-items:center}
/* stepper */
.co-steps{list-style:none;display:flex;align-items:flex-start;gap:0;margin:0 0 26px;padding:0}
.co-steps li{flex:1;display:grid;justify-items:center;gap:6px;position:relative;font-size:.78rem;opacity:.5;cursor:default}
.co-steps li.done{opacity:.85;cursor:pointer}
.co-steps li.on{opacity:1}
.co-steps li::before{content:"";position:absolute;top:15px;left:calc(-50% + 20px);right:calc(50% + 20px);height:1px;background:var(--line-2)}
.co-steps li:first-child::before{display:none}
.co-dot{width:30px;height:30px;border-radius:50%;border:var(--edge) solid var(--line-2);display:flex;align-items:center;justify-content:center;font-family:var(--head);font-size:.85rem;background:#fff}
.co-steps li.on .co-dot{background:var(--ink);color:#fff;border-color:var(--ink)}
.co-steps li.done .co-dot{border-color:var(--ink)}
.co-intro{font-size:.86rem;opacity:.75;margin:0 0 14px}
.co-hint{font-size:.76rem;opacity:.65;margin:8px 0 12px}
.co-legal{font-size:.72rem;opacity:.6;margin:14px 0 0}
.co-signed{display:flex;gap:12px;align-items:center;justify-content:space-between;font-size:.86rem;margin:0}
.co-linkbtn{background:none;border:0;padding:0;font:inherit;font-size:.8rem;text-decoration:underline;cursor:pointer;color:inherit;opacity:.75}
.co-next{width:100%;justify-content:center;text-align:center}
.co-nav{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:14px}
.co-nav .co-next{width:auto}
.co-codes{margin:0 0 14px;padding:0 0 12px;border-bottom:1px solid rgba(18,20,27,.1);display:grid;gap:6px}
@media (max-width:900px){.co-grid{grid-template-columns:1fr}.co-side{position:static;order:-1;margin-top:0}.co-steps li b{font-size:.72rem}}
.acct-signin{display:flex;justify-content:center;margin:38px 0 60px}
.acct-box{width:100%;max-width:440px;background:#fff;border:1px solid rgba(18,20,27,.14);border-radius:16px;padding:26px}
.acct-box-h{font-size:1.15rem;margin:0 0 8px;letter-spacing:-.01em}
.acct-intro{font-size:.9rem;opacity:.75;line-height:1.55;margin:0 0 16px}
.acct-note{font-size:.78rem;opacity:.62;line-height:1.55;margin:14px 0 0}
.acct-box .co-pay{width:100%;justify-content:center;text-align:center}

.acct-dash{display:grid;grid-template-columns:230px minmax(0,1fr);gap:34px;align-items:start;margin:30px 0 60px}
.acct-nav{position:sticky;top:96px;display:grid;gap:14px}
.acct-who{display:grid;grid-template-columns:38px 1fr;gap:11px;align-items:center;padding-bottom:14px;border-bottom:1px solid rgba(18,20,27,.12)}
.acct-avatar{width:38px;height:38px;border-radius:10px;background:var(--ink);color:#fff;display:grid;place-items:center;font-weight:700}
.acct-who b{display:block;font-size:.92rem}
.acct-who p{margin:1px 0 0;font-size:.76rem;opacity:.65;overflow:hidden;text-overflow:ellipsis}
.acct-nav nav{display:grid;gap:2px}
.acct-tab{text-align:left;background:none;border:0;font:inherit;font-size:.92rem;padding:9px 12px;border-radius:9px;cursor:pointer;color:inherit;opacity:.72}
.acct-tab:hover{background:rgba(18,20,27,.06);opacity:1}
.acct-tab.is-on{background:rgba(18,20,27,.08);opacity:1;font-weight:600}
.acct-out{justify-self:start;background:none;border:0;padding:0 12px;font:inherit;font-size:.82rem;text-decoration:underline;cursor:pointer;color:inherit;opacity:.7}

.acct-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-bottom:22px}
.acct-stat{border:1px solid rgba(18,20,27,.14);border-radius:13px;padding:14px 16px;background:#fff}
.acct-stat span{display:block;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;opacity:.6}
.acct-stat b{font-size:1.5rem;letter-spacing:-.02em}
.acct-panel{display:none;border:1px solid rgba(18,20,27,.14);border-radius:14px;background:#fff;padding:22px}
.acct-panel.is-on{display:block}
.acct-panel h3{margin:0 0 14px;font-size:1.02rem}
.acct-empty{border:1px dashed rgba(18,20,27,.24);border-radius:12px;padding:26px 22px;display:grid;gap:14px;justify-items:start;background:rgba(18,20,27,.02)}
.acct-empty p{margin:0;font-size:.9rem;line-height:1.6;opacity:.75;max-width:52ch}
.acct-check{display:flex;gap:10px;align-items:center;font-size:.88rem;margin:0 0 10px}
.acct-panel .co-pay{margin-top:8px}
@media (max-width:900px){
  .acct-signin{margin:26px 0 44px}
  .acct-dash{grid-template-columns:1fr;gap:22px}
  .acct-nav{position:static}
  .acct-nav nav{grid-auto-flow:column;grid-auto-columns:max-content;overflow-x:auto;gap:6px}
  .acct-stats{grid-template-columns:1fr 1fr}
}



/* Contact / support */
.sup-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.85fr);gap:26px;align-items:start;margin:30px 0 60px}
.sup-form-box{max-width:none}
.sup-form-box .co-f{margin-bottom:14px}
.sup-form-box textarea{width:100%;font:inherit;font-size:.95rem;padding:11px 13px;border:1px solid rgba(18,20,27,.2);border-radius:11px;background:#fff;resize:vertical}
.sup-form-box select{width:100%;font:inherit;font-size:.95rem;padding:11px 13px;border:1px solid rgba(18,20,27,.2);border-radius:11px;background:#fff}
.sup-form-box .acct-check{margin:6px 0 14px;align-items:flex-start;line-height:1.5}
.sup-err{color:#b42318;opacity:1}
.sup-ok{color:#1b6b3a;opacity:1}
.sup-aside{display:grid;gap:14px}
.sup-card{border:1px solid rgba(18,20,27,.14);border-radius:14px;background:#fff;padding:18px 20px}
.sup-card h3{margin:0 0 6px;font-size:.95rem;letter-spacing:-.01em}
.sup-card p{margin:0 0 2px;font-size:.92rem}
.sup-card a{color:inherit}
.sup-sub{font-size:.82rem;opacity:.66;line-height:1.55}
.sup-list{margin:0;padding:0;list-style:none;display:grid;gap:7px;font-size:.9rem}
@media (max-width:900px){
  .sup-grid{grid-template-columns:1fr;gap:18px;margin:24px 0 46px}
}

/* ─── legal documents ─── */
.legal-doc{max-width:74ch;margin-top:var(--s4)}
.legal-doc h2{font-size:1.05rem;letter-spacing:-.01em;margin:30px 0 8px}
.legal-doc h2:first-child{margin-top:0}
.legal-doc p{font-size:.95rem;line-height:1.75;color:var(--ink-2)}
.legal-doc a{color:var(--ink);text-decoration:underline;text-underline-offset:3px}
.legal-updated{margin-top:34px;padding-top:14px;border-top:1px solid var(--line-2);
  font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;opacity:.55}