/* =====================================================================
   eurabeltfuels.uk — Products & product sheets (v2.0)
   One bold element: the engraved specification sheet. Around it, a quiet register of product codes.
   ===================================================================== */

/* short heroes: size containment would collapse an auto-height hero (see REQUESTS_products-contact.md) */
.hero.short{container-type:inline-size}
.product-page .hero h1,.lot-code,.sheet-code,.free-seal b,.steps .n{font-variant-numeric:lining-nums;font-feature-settings:"lnum" 1}

/* ---- institutional role (paper) ------------------------------------------ */
.role-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:clamp(32px,6vw,96px);align-items:start}
.role-head h2{margin-bottom:22px;max-width:14ch}
.role-head{position:sticky;top:calc(var(--hdr) + 72px)}
.role-body{font-size:16.5px;color:var(--ink2)}
.role-body strong{color:var(--ink)}
.role-not{font:600 clamp(22px,2vw,28px)/1.25 var(--serif);color:var(--ink);padding-bottom:18px;border-bottom:1px solid var(--pline)}
.role-not strong{font-weight:600}
.role-rule{padding:18px 20px;border-left:2px solid var(--gold-d);background:rgba(201,162,39,.07);color:var(--ink)!important}
.ticks,.crosses{list-style:none;padding-left:0!important}
.ticks li,.crosses li{position:relative;padding-left:26px}
.ticks li::before{content:"";position:absolute;left:2px;top:.62em;width:11px;height:6px;border-left:1.5px solid var(--gold-d);border-bottom:1.5px solid var(--gold-d);transform:rotate(-45deg) translateY(-3px)}
.crosses li::before,.crosses li::after{content:"";position:absolute;left:2px;top:.75em;width:12px;height:1.5px;background:#a2433f;transform:rotate(45deg)}
.crosses li::after{transform:rotate(-45deg)}
.sec .ticks li::before{border-color:var(--gold-l)}
.paper .ticks li::before{border-color:var(--gold-d)}

/* category index */
.cat-index{margin-top:clamp(56px,7vw,96px);padding-top:28px;border-top:1px solid var(--ink)}
.cat-index h3{font-size:22px;margin-bottom:18px}
.cat-index ul{list-style:none;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));border-left:1px solid var(--pline)}
.cat-index a{display:flex;flex-direction:column;gap:8px;height:100%;padding:18px 18px 16px;border-right:1px solid var(--pline);transition:background .2s}
.cat-index a:hover{background:#fff}
.cat-index b{font:600 24px/1.1 var(--serif);color:var(--ink)}
.cat-index span{font-size:13.5px;line-height:1.5;color:var(--ink2)}
.cat-index small{margin-top:auto;font:500 11px/1 var(--mono);letter-spacing:.1em;color:var(--gold-d)}
.cat-index a:hover b{color:#7a5f0c}

/* ---- the register of product codes ---------------------------------------- */
.sec.cat{padding:clamp(64px,7vw,104px) 0}
.cat .sec-head{margin-bottom:28px}
.cat .sec-head h2{max-width:none}
.process .sec-head h2{max-width:18ch;font-size:clamp(32px,3.2vw,48px)}
.ledger{list-style:none;border-top:1px solid var(--line2)}
.lot{display:grid;grid-template-columns:minmax(150px,230px) minmax(0,1fr) auto;gap:clamp(18px,3vw,44px);align-items:center;padding:26px 0;border-bottom:1px solid var(--line)}
.lot-code{font:300 clamp(36px,3.6vw,54px)/.95 var(--sans);letter-spacing:.01em;color:var(--gold-l);transition:color .3s}
.lot:hover .lot-code,.lot:focus-within .lot-code{color:#f3dc8f}
.lot-main h3{font-size:clamp(23px,2vw,29px);margin-bottom:6px}
.lot-main h3 a:hover{color:var(--gold-l)}
.lot-main p{font-size:15px;color:var(--text2)}
.lot-std{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}
.lot-std li{font:400 11.5px/1 var(--mono);letter-spacing:.04em;color:var(--text3);padding:6px 8px;border:1px solid var(--line)}
.lot-act{display:flex;gap:8px;align-items:center}

/* ---- process ------------------------------------------------------------- */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;border-top:1px solid var(--line2)}
.steps li{position:relative;padding:30px 26px 30px 0;margin-right:26px}
.steps li+li{padding-left:26px;margin-right:0;border-left:1px solid var(--line)}
.steps .n{display:grid;place-items:center;width:44px;height:44px;margin-bottom:22px;border:1px solid var(--gold);border-radius:50%;font:500 15px/1 var(--mono);color:var(--gold-l);background:var(--vault)}
.steps li::before{content:"";position:absolute;top:-1px;left:0;width:40px;height:1px;background:var(--gold-l)}
.steps li+li::before{left:26px}
.steps h4{font-size:24px;line-height:1.15;margin-bottom:12px}
.steps p{font-size:15px;color:var(--text2)}
.steps p+p{margin-top:10px}
.start{position:relative;margin-top:clamp(48px,6vw,80px);display:grid;grid-template-columns:minmax(0,1.6fr) auto;gap:28px 56px;align-items:end;padding:clamp(26px,3vw,40px);border:1px solid var(--line2);background:linear-gradient(120deg,rgba(201,162,39,.08),rgba(13,35,65,.5) 60%)}
.start h3{font-size:clamp(28px,2.6vw,38px);margin-bottom:12px}
.start p{color:var(--text2);font-size:15.5px}
.start p+p{margin-top:8px}

/* ---- verified ------------------------------------------------------------ */
.verified-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(260px,.8fr);gap:clamp(32px,6vw,96px);align-items:start}
.verified h2{margin-bottom:18px}
.checks{margin-top:30px;border-top:1px solid var(--ink)}
.checks div{display:grid;grid-template-columns:minmax(180px,.8fr) 1.6fr;gap:8px 32px;padding:16px 0;border-bottom:1px solid var(--pline)}
.checks dt{font:600 20px/1.25 var(--serif);color:var(--ink)}
.checks dd{font-size:15px;color:var(--ink2)}
.free{padding:30px 28px;background:#fff;border:1px solid var(--pline);position:sticky;top:calc(var(--hdr) + 72px)}
.free-seal{position:relative;display:grid;place-content:center;justify-items:center;text-align:center;width:180px;height:180px;margin:0 auto 22px;border-radius:50%;border:1px solid var(--gold-d);box-shadow:inset 0 0 0 6px #fff,inset 0 0 0 7px rgba(143,112,18,.5);overflow:hidden}
.free-seal::before{content:"";position:absolute;inset:0;background:url(../../brand/guilloche.svg) center/160% no-repeat;opacity:.22}
.free-seal span,.free-seal b{position:relative}
.free-seal span{display:block;font:500 10.5px/1.3 var(--mono);letter-spacing:.12em;color:var(--ink3);max-width:12ch}
.free-seal b{display:block;font:600 34px/1 var(--serif);color:#7a5f0c;margin-top:4px}
.free p{font-size:15px;color:var(--ink2);margin-bottom:18px}

/* ---- product page -------------------------------------------------------- */
.custodian-note{background:#02060d;border-bottom:1px solid var(--line)}
.custodian-note p{max-width:none;padding:16px 0;font-size:14.5px;color:var(--text2)}
.custodian-note b{color:var(--gold-l);font-weight:500}
.prod-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(32px,5vw,72px);align-items:start}
.prod-h{font-size:clamp(28px,2.6vw,38px);margin-bottom:14px}
.prod-desc{font:400 clamp(20px,1.6vw,23px)/1.55 var(--serif);color:var(--ink)!important;max-width:62ch;margin-bottom:clamp(36px,4vw,56px)}
.prod-block{margin-top:clamp(40px,4.5vw,64px)}
.prod-block>p{margin-bottom:16px}
.prod-two{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,56px)}
.prod-two .prod-h{font-size:clamp(24px,2vw,30px)}
.prod-block .ticks li{padding-top:9px;padding-bottom:9px;border-bottom:1px solid var(--pline);font-size:15.5px;color:var(--ink2)}
.prod-block .ticks li::before{top:1.1em}

/* the engraved specification sheet */
.sheet{position:relative;background:#fff;color:var(--ink);padding:clamp(22px,3vw,40px);border:1px solid #c2c9d3;box-shadow:0 1px 0 #fff inset,0 24px 50px -30px rgba(13,27,48,.35);scroll-margin-top:calc(var(--hdr) + 70px)}
.sheet::before{content:"";position:absolute;inset:8px;border:1px solid rgba(143,112,18,.45);pointer-events:none}
.sheet::after{content:"";position:absolute;inset:11px;border:1px solid rgba(143,112,18,.18);pointer-events:none}
.sheet-head{position:relative;display:grid;grid-template-columns:auto minmax(0,1fr);gap:clamp(18px,3vw,40px);align-items:end;padding:6px 6px 26px;margin-bottom:6px;border-bottom:2px solid var(--ink);overflow:hidden}
.sheet-head::before{content:"";position:absolute;right:-90px;top:-120px;width:340px;height:340px;background:url(../../brand/guilloche.svg) center/contain no-repeat;opacity:.13;pointer-events:none}
.sheet-id{position:relative;display:flex;flex-direction:column;gap:8px}
.sheet-code{font:300 clamp(50px,6vw,84px)/.85 var(--sans);letter-spacing:-.01em;color:var(--ink);text-shadow:1px 1px 0 #fff,2px 2px 0 rgba(143,112,18,.35)}
.sheet-cat{font:500 11px/1 var(--mono);letter-spacing:.14em;color:#7a5f0c}
.sheet-head h2{position:relative;font-size:clamp(24px,2.2vw,32px);margin-bottom:8px}
.sheet-head p{position:relative;font-size:14px;color:var(--ink2)}
.spec{position:relative;width:100%;border-collapse:collapse;font-size:15px}
.spec thead th{padding:14px 6px 10px;text-align:left;font:500 11px/1 var(--mono);letter-spacing:.12em;color:var(--ink3);border-bottom:1px solid var(--pline)}
.spec tbody th,.spec tbody td{padding:12px 6px;vertical-align:baseline;border-bottom:1px solid #edf0f4}
.spec tbody th{width:48%;text-align:left;font-weight:400;color:var(--ink2);background:radial-gradient(circle,#9aa5b5 .8px,transparent 1px) left calc(100% - 5px)/6px 3px repeat-x;background-origin:content-box;background-clip:content-box}
.spec tbody th span{background:#fff;padding-right:10px}
.spec tbody td{font:500 14.5px/1.45 var(--mono);color:var(--ink);padding-left:14px}
.spec tbody tr:hover th span,.spec tbody tr:hover td{color:#7a5f0c}
.sheet-foot{position:relative;display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:12px;margin-top:18px;padding:14px 6px 0;border-top:2px solid var(--ink);font:400 10.5px/1.4 var(--mono);letter-spacing:.08em;color:var(--ink3)}
.paper .sheet .share-btn{color:var(--ink2);border-color:#c5ccd6}
.paper .share-btn{color:var(--ink2);border-color:#c5ccd6}
.paper .share-btn:hover{color:#7a5f0c;border-color:var(--gold-d)}
.stds{list-style:none;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:0;border-top:1px solid var(--ink);border-left:1px solid var(--pline)}
.stds li{display:flex;flex-direction:column;gap:6px;padding:16px 18px;border-right:1px solid var(--pline);border-bottom:1px solid var(--pline);background:#fff}
.stds b{font:500 14.5px/1.2 var(--mono);color:var(--ink);letter-spacing:.02em}
.stds span{font-size:14px;color:var(--ink2);line-height:1.45}

/* side column */
.prod-side{display:flex;flex-direction:column;gap:14px;position:sticky;top:calc(var(--hdr) + 72px)}
.side-card{position:relative;background:#fff;border:1px solid var(--pline);padding:22px 22px 20px}
.side-card h3{font-size:22px;margin-bottom:12px}
.side-card p{font-size:14.5px;color:var(--ink2)}
.side-card p+p{margin-top:8px}
.side-card .btn{margin:16px 0 10px;width:100%;justify-content:center}
.facts dl div{display:grid;grid-template-columns:110px 1fr;gap:10px;padding:9px 0;border-top:1px solid #edf0f4;font-size:14px}
.facts dt{color:var(--ink3);font-size:13px}
.facts dd{color:var(--ink)}
.facts dd a{color:#7a5f0c;text-decoration:underline;text-underline-offset:3px;text-decoration-color:rgba(122,95,12,.35)}
.side-card.cta{background:var(--ink);border-color:var(--ink)}
.side-card.cta h3{color:#fff}
.side-card.cta p{color:#c4cbd6}
.side-card.cta .note{color:#9aa5b5;font-size:12.5px;text-align:center}
.side-card.warn{border-left:3px solid #b7791f}
.side-card.ok{border-left:3px solid #2f8a63}
.side-link{display:inline-block;margin-top:12px;font-size:14px;color:#7a5f0c;text-decoration:underline;text-underline-offset:3px}
.back{padding:clamp(40px,5vw,64px) 0!important}

/* ---- responsive ---------------------------------------------------------- */
@media (max-width:1180px){.cat-index ul{grid-template-columns:repeat(3,minmax(0,1fr))}.cat-index li{border-bottom:1px solid var(--pline)}}
@media (max-width:1023px){
  .role-grid,.verified-grid,.prod-layout{grid-template-columns:1fr}
  .role-head,.free,.prod-side{position:static}
  .steps{grid-template-columns:1fr 1fr}
  .steps li:nth-child(3){border-left:0;padding-left:0}
  .steps li:nth-child(3)::before{left:0}
  .steps li:nth-child(n+3){border-top:1px solid var(--line)}
  .lot{grid-template-columns:150px minmax(0,1fr)}
  .lot-act{grid-column:2}
  .start{grid-template-columns:1fr}
  .prod-side{display:grid;grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .cat-index ul{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr}
  .steps li,.steps li+li{padding:26px 0;margin:0;border-left:0}
  .steps li+li{border-top:1px solid var(--line)}
  .steps li+li::before{left:0}
  .lot{grid-template-columns:1fr;gap:12px;padding:24px 0}
  .lot-act{grid-column:auto;flex-wrap:wrap}
  .lot-code{font-size:42px}
  .checks div{grid-template-columns:1fr}
  .prod-two,.prod-side{grid-template-columns:1fr}
  .sheet{padding:20px 16px}
  .sheet-head{grid-template-columns:1fr;gap:14px}
  .spec tbody th{width:52%;font-size:14px}
  .spec tbody td{font-size:13.5px;padding-left:8px}
  .start .btns{flex-direction:column;align-items:stretch}
}
@media print{
  .custodian-note,.prod-side,.back,#related{display:none!important}
  .prod-layout{grid-template-columns:1fr}
  .sheet{box-shadow:none}
}