/* ===========================================================
   PrimeStockUK — Product detail page (Alibaba-style B2B layout)
   Page-specific only; reuses tokens/classes from styles.css.
   =========================================================== */
.pdp{padding-top:26px;padding-bottom:70px}
.pdp__grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr) 330px;gap:34px;align-items:start;margin-top:14px}

/* ---- gallery ---- */
.gallery{display:flex;gap:14px}
.gallery__thumbs{display:flex;flex-direction:column;gap:10px;flex:none}
.gthumb{width:66px;height:66px;border:2px solid var(--line);border-radius:10px;overflow:hidden;background:#fff;cursor:pointer;padding:0}
.gthumb img{width:100%;height:100%;object-fit:cover}
.gthumb.is-active{border-color:var(--red)}
.gallery__main{position:relative;flex:1;aspect-ratio:1/1;border:1px solid var(--line);border-radius:14px;overflow:hidden;background:var(--bg-grey)}
.gallery__main img{width:100%;height:100%;object-fit:cover}
.gallery__toggle{position:absolute;left:50%;bottom:14px;transform:translateX(-50%);display:flex;background:#fff;border-radius:999px;box-shadow:0 6px 16px -8px rgba(20,22,40,.4);overflow:hidden;font-weight:700;font-size:.82rem}
.gallery__toggle span{padding:8px 18px;color:var(--grey)}
.gallery__toggle span.is-active{background:var(--ink);color:#fff}

/* ---- info column ---- */
.pdp__brand{font-weight:700;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--red);margin-bottom:8px}
.pdp__title{font-family:var(--font);font-weight:700;font-size:clamp(1.4rem,2.2vw,1.9rem);line-height:1.25;margin:0 0 12px}
.pdp__meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:.92rem;color:var(--grey);margin-bottom:20px}
.pdp__meta b{color:var(--ink)}
.pdp__meta a{color:var(--red);text-decoration:underline}
.pdp__meta .dot{opacity:.5}
.pdp__meta .rank{color:var(--red);font-weight:700}
.stars{color:var(--red);letter-spacing:1px;position:relative}
.stars__half{opacity:.35}

/* ---- ladder pricing ---- */
.ladder{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;margin-bottom:22px}
.ladder__range{font-weight:700;font-size:1.9rem;color:var(--red);margin-bottom:14px}
.ladder__range .ladder__unit{font-size:.9rem;color:var(--grey);font-weight:500}
.ladder__tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.tier{padding:12px 14px;border-right:1px solid var(--line);transition:background .15s ease}
.tier:last-child{border-right:0}
.tier__q{font-size:.82rem;color:var(--grey);font-weight:500;margin-bottom:4px}
.tier__p{font-weight:700;font-size:1.05rem}
.tier__off{display:block;font-size:.72rem;color:var(--red);font-weight:700;margin-top:2px;min-height:.9em}
.tier.is-active{background:#fbeef1}
.tier.is-active .tier__q{color:var(--red)}
.ladder__moq{margin:14px 0 0;font-size:.88rem;color:var(--grey)}
.ladder__moq b{color:var(--ink)}

/* ---- quantity ---- */
.qty{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:28px}
.qty__label{font-weight:700}.qty__label small{color:var(--grey);font-weight:500}
.qty__stock{font-size:.85rem;color:var(--grey)}
.stepper{display:inline-flex;align-items:center;border:1.5px solid var(--line);border-radius:999px;overflow:hidden}
.stepper button{width:42px;height:42px;border:0;background:#fff;font-size:1.3rem;line-height:1;cursor:pointer;color:var(--ink)}
.stepper button:hover{background:var(--bg-grey)}
.stepper input{width:66px;height:42px;border:0;border-left:1.5px solid var(--line);border-right:1.5px solid var(--line);text-align:center;font:inherit;font-weight:700;font-size:1rem;-moz-appearance:textfield}
.stepper input::-webkit-outer-spin-button,.stepper input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}

/* ---- key attributes ---- */
.pdp__h2{font-family:var(--font);font-weight:700;text-transform:uppercase;font-size:1.05rem;letter-spacing:.02em;margin:0 0 14px}
.attrs{display:grid;grid-template-columns:1fr 1fr;gap:0 24px;border-top:1px solid var(--line)}
.attrs div{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px solid var(--line)}
.attrs span{color:var(--grey);font-size:.9rem}
.attrs b{font-size:.92rem;text-align:right}

/* ---- sticky order box ---- */
.orderbox{position:sticky;top:96px;border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff;box-shadow:0 18px 40px -26px rgba(20,22,40,.35)}
.orderbox__price{margin-bottom:16px}
.orderbox__price span{font-size:1.7rem;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums}
.orderbox__price small{display:block;color:var(--grey);font-size:.82rem;margin-top:2px}
.orderbox__row{display:flex;justify-content:space-between;gap:12px;padding:8px 0;font-size:.92rem;color:var(--grey)}
.orderbox__row b{color:var(--ink);font-variant-numeric:tabular-nums}
.orderbox__row--total{border-top:1px solid var(--line);margin-top:6px;padding-top:12px;font-size:1.05rem;color:var(--ink);font-weight:700}
.orderbox__save{min-height:1.1em;margin:8px 0 14px;font-size:.84rem;color:var(--red);font-weight:700}
.orderbox .btn{margin-bottom:10px}
.btn--outline-red{background:#fff;color:var(--red);border-color:var(--red)}
.btn--outline-red:hover{background:#fbeef1}
.assurance{display:flex;gap:10px;align-items:flex-start;margin-top:8px;padding-top:14px;border-top:1px solid var(--line)}
.assurance svg{width:26px;height:26px;color:var(--red);flex:none}
.assurance b{display:block;font-size:.88rem}
.assurance span{font-size:.8rem;color:var(--grey);line-height:1.4}
.orderbox__note{margin:12px 0 0;font-size:.74rem;color:#9aa0ab;line-height:1.4}

/* ---- supplier card ---- */
.supplier{margin-top:40px;border:1px solid var(--line);border-radius:16px;padding:22px 24px}
.supplier__head{display:flex;align-items:center;gap:14px;margin-bottom:18px}
.supplier__logo{width:46px;height:46px;border-radius:10px;background:var(--red);color:#fff;display:grid;place-items:center;font-weight:700}
.supplier__head b{font-size:1.05rem}
.verified{color:#1a8f4a;font-size:.8rem;font-weight:700;margin-left:6px}
.supplier__meta{display:block;color:var(--grey);font-size:.86rem;margin-top:2px}
.supplier__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:16px 0;margin-bottom:14px}
.supplier__stats b{display:block;font-size:1.2rem}
.supplier__stats span{color:var(--grey);font-size:.82rem}
.supplier__markets{margin:0;font-size:.9rem;color:var(--grey)}
.supplier__markets b{color:var(--ink)}

/* ---- details ---- */
.details{margin-top:40px}
.details__p{max-width:70ch;color:#3a3b45;line-height:1.7;margin:0 0 20px}
.details__ph{border:1px dashed #c7cbd2;border-radius:14px;padding:60px;text-align:center;color:#9aa0ab;font-weight:600}

/* ---- responsive ---- */
@media (max-width:1080px){
  .pdp__grid{grid-template-columns:1fr 1fr}
  .orderbox{grid-column:1 / -1;position:static}
}
@media (max-width:760px){
  .pdp__grid{grid-template-columns:1fr}
  .gallery{flex-direction:column-reverse}
  .gallery__thumbs{flex-direction:row}
  .ladder__tiers{grid-template-columns:1fr 1fr}
  .tier:nth-child(2){border-right:0}
  .attrs{grid-template-columns:1fr}
  .supplier__stats{grid-template-columns:1fr 1fr;gap:14px}
}