/* ==========================================================================
   IASS-NEW — detail.css v1.0 (UI Designer)
   Fiche détail : breadcrumb, galerie, onglets, similaires (pattern LSPA)
   + composants IASS : .spec-table (cartes ≤640px), .doc-list (PDF+poids),
   .gamme-badge, .feature-grid, .cert-banner, .tab-count, empty/erreur/skeleton.
   Charger après tokens.css + style.css :
     <link rel="stylesheet" href="assets/css/tokens.css">
     <link rel="stylesheet" href="assets/css/style.css">
     <link rel="stylesheet" href="assets/css/detail.css">
   JS attendu : assets/js/detail.js (injecte #detail-root, voir §0).
   ========================================================================== */

/* ================= 0. CONTRAT FRONTEND (classes à utiliser) ===============
   <nav class="pdp-crumb">…Accueil › Produits › <span aria-current>Nom</span>
   <div class="pdp-grid">
     <div class="pdp-gallery">
       <span class="gamme-badge" data-gamme="vingcard">Vingcard</span>
       <img class="pdp-main" id="pdp-main" …>
       <div class="pdp-thumbs" role="group" aria-label="Galerie"> <button data-thumb>…
     </div>
     <div class="pdp-info">
       <span class="pdp-badge">…</span>
       <h1 class="pdp-title">…</h1>
       <p class="pdp-ref">Réf. XXX · Catégorie</p>
       <p class="pdp-short">…</p>
       <div class="pdp-ctas"> <a class="btn btn-orange">… <a class="btn btn-line" href="tel:…">
       <p class="pdp-note">…</p>
       <div class="cert-banner">…(§7)</div>
     </div>
   </div>
   <div class="tabs" role="tablist"> <button class="tab-btn" role="tab">… <span class="tab-count">3</span>
   <div class="tab-panel" role="tabpanel">… .spec-table / .feature-grid / .doc-list
   <a class="pdp-back" href="produits.html#s-…">← Retour catalogue</a>
   <section class="similaires"><div class="sim-grid"> <a class="card">…
   États : .notfound / .detail-error / .detail-empty / .skeleton
   ========================================================================== */

/* ================= 1. FIL D'ARIANE ======================================= */
.breadcrumb,.pdp-crumb,.crumb-pdp{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:.82rem;color:var(--muted);margin:0 0 16px}
.breadcrumb a,.pdp-crumb a{color:var(--muted);text-decoration:none;padding:2px 4px;border-radius:4px}
.breadcrumb a:hover,.pdp-crumb a:hover{color:var(--orange-ink);text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"],.pdp-crumb [aria-current="page"]{color:var(--navy);font-weight:700}
.breadcrumb .sep,.pdp-crumb .sep{color:#9aa3b8}

/* ================= 2. GRILLE FICHE (galerie + infos) ====================== */
/* LSPA : .detail-layout 1.05fr/.95fr — repris à l'identique, renommé .pdp-grid */
.detail-layout,.pdp-grid,.product-detail{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:start;min-width:0}
.pdp-info,.product-info,.detail-info{min-width:0}

/* ================= 3. GALERIE ============================================ */
.gallery-main,.pdp-gallery,.gallery,.main-photo{background:#fff;border:1px solid var(--line);border-radius:14px;padding:18px;box-shadow:var(--shadow-sm);min-width:0}
.gallery-main{aspect-ratio:4/3;display:grid;place-items:center;position:relative;overflow:hidden}
.pdp-main,#pdp-main,.gallery-main img,.main-photo img{width:100%;aspect-ratio:4/3;object-fit:contain;background:var(--cream);border-radius:10px;display:block}
.pdp-gallery .pdp-main{border:1px solid var(--line)}
/* Badge dispo sur image (optionnel) */
.pdp-gallery .badge,.gallery-main .badge{position:absolute;top:14px;left:14px;z-index:2}
/* Miniatures */
.thumbs,.pdp-thumbs,#thumbs{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}
.thumbs button,.pdp-thumbs button{width:78px;height:64px;border-radius:var(--radius-sm);border:2px solid var(--line);background:#fff;overflow:hidden;cursor:pointer;padding:4px;transition:border-color var(--tr-fast)}
.thumbs button:hover,.pdp-thumbs button:hover{border-color:var(--orange-line)}
.thumbs button.active,.thumbs button[aria-current="true"],.pdp-thumbs button[aria-current="true"]{border-color:var(--orange)}
.thumbs img,.pdp-thumbs img{width:100%;height:100%;object-fit:contain;display:block;background:#fff}

/* ================= 4. BLOC INFO ========================================== */
.pdp-badge,.brand{display:inline-block;background:var(--navy);color:#fff;font:700 .68rem var(--font);letter-spacing:.1em;text-transform:uppercase;padding:6px 12px;border-radius:var(--radius-pill)}
.pdp-title,.detail-info h1,.product-info h1{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;color:var(--navy);line-height:1.2;margin:10px 0 6px;letter-spacing:-.01em}
.pdp-ref{font-size:.82rem;font-weight:700;color:var(--orange-ink)}
.pdp-short,.product-info .subtitle{color:var(--muted);margin:10px 0 18px;line-height:1.7}
.meta-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;color:var(--muted);font-size:.8rem}
.chips{display:flex;gap:8px;flex-wrap:wrap;list-style:none;margin:12px 0;padding:0}
.chips li{font-size:.72rem;font-weight:600;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);padding:6px 12px;color:var(--navy)}
.info-line{height:1px;background:var(--line);margin:16px 0}
.feat-title{font-size:.95rem;font-weight:800;color:var(--navy);margin:0 0 10px}
.features{list-style:none;margin:0 0 6px;padding:0;display:grid;gap:10px}
.features li{display:flex;gap:10px;align-items:flex-start;line-height:1.6;font-size:.88rem;color:var(--body)}
.pdp-ctas,.request-actions{display:flex;gap:12px;flex-wrap:wrap;margin:6px 0 8px}
.pdp-note,.request-box{background:var(--orange-soft);border:1px solid var(--orange-line);border-radius:var(--radius-sm);padding:12px 16px;font-size:.78rem;color:var(--body);line-height:1.6;margin-top:14px}
.pdp-note a,.request-box a{color:var(--orange-ink);font-weight:700}
.request-box strong{color:var(--navy)}
.btn-ghost{background:#fff;border:2px solid var(--line-2);color:var(--navy);border-radius:var(--radius-sm);padding:11px 18px;font:600 .84rem var(--font);cursor:pointer}
.btn-ghost:hover{border-color:var(--navy)}

/* ================= 5. ONGLETS (pattern LSPA, clavier flèches) ============= */
.details-section{margin-top:8px}
.tabs{display:flex;gap:8px;margin:26px 0 0;flex-wrap:wrap;border-bottom:2px solid var(--line)}
.tab-btn{border:1px solid var(--line);border-bottom:0;background:#f7f8fa;border-radius:8px 8px 0 0;padding:10px 18px;font:700 .8rem var(--font);color:var(--navy);cursor:pointer;display:inline-flex;align-items:center;gap:8px;min-height:44px}
.tab-btn:hover{background:var(--orange-soft);border-color:var(--orange-line)}
.tab-btn[aria-selected="true"],.tab-btn.active{background:var(--orange);border-color:var(--orange);color:var(--navy)}
.tab-panel{background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 10px 10px;padding:20px;color:var(--body);font-size:.9rem;line-height:1.75}
.tab-panel[hidden]{display:none}
.tab-panel h2{font-size:1rem;color:var(--navy);margin:0 0 12px}
.tab-panel p{margin:0 0 10px}
/* Compteur d'onglet — ex. Docs <span class="tab-count">3</span> */
.tab-count{display:inline-grid;place-items:center;min-width:24px;height:24px;padding:0 7px;border-radius:var(--radius-pill);background:var(--navy);color:#fff;font:700 .7rem var(--font)}
.tab-btn[aria-selected="true"] .tab-count{background:var(--navy);color:#fff}
.tab-btn:not([aria-selected="true"]) .tab-count{background:var(--bg);border:1px solid var(--line);color:var(--muted)}

/* ================= 6. TABLE SPECS → CARTES ≤640px ========================= */
/* Frontend : <table class="spec-table"><tbody><tr><th scope="row">Libellé<td>Valeur */
.spec-table,.specs-table,.doc-table{width:100%;border-collapse:separate;border-spacing:0;font-size:.84rem;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:#fff}
.spec-table th,.spec-table td,.specs-table th,.specs-table td{padding:11px 14px;text-align:start;border-bottom:1px solid var(--line);vertical-align:top}
.spec-table th,.specs-table th{background:var(--cream);width:34%;color:var(--navy);font-weight:700}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table tr:nth-child(even) td{background:#fcfcfd}
.spec-table td{color:var(--body)}
/* ≤640px : chaque ligne devient une carte empilée (exigence mission) */
@media(max-width:640px){
  .spec-table,.spec-table tbody,.spec-table tr,.spec-table th,.spec-table td{display:block;width:100%}
  .spec-table{border:0;background:none}
  .spec-table tr{background:#fff;border:1px solid var(--line);border-radius:10px;margin-bottom:10px;overflow:hidden;break-inside:avoid}
  .spec-table th{background:var(--navy);color:#fff;border-bottom:0;font-size:.76rem;letter-spacing:.04em;text-transform:uppercase}
  .spec-table td{border-bottom:0}
}

/* ================= 7. FEATURE-GRID + LISTE ================================ */
/* Grille 2 col (cartes) — à utiliser dans l'onglet Caractéristiques si >4 items */
.feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
.feature-grid .feature{display:flex;gap:12px;align-items:flex-start;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:14px}
.feature-grid .feature-icon,.feature-grid .f-ico{width:40px;height:40px;flex:none;border-radius:10px;display:grid;place-items:center;background:#fff;border:1px solid var(--orange-line);color:var(--orange-ink);font-size:1.2rem}
.feature-grid b{display:block;font-size:.84rem;color:var(--navy)}
.feature-grid span{font-size:.78rem;color:var(--muted);line-height:1.55}
/* Liste simple (rendu actuel de detail.js : <ul class="feat-list">) */
.feat-list,.feat-list ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.feat-list li{display:flex;gap:10px;align-items:flex-start;line-height:1.6;font-size:.88rem;color:var(--body)}
.feat-list .tick{color:var(--orange-ink);font-weight:800;flex:none}

/* ================= 8. DOC-LIST (icône PDF + poids) ======================== */
/* Frontend : <ul class="doc-list"><li><a href="fiche/xxx.pdf" data-size="1,2 Mo" target="_blank" rel="noopener">
   <svg class="i"><use href="#doc"/></svg><span>Nom du PDF<small>PDF · s'ouvre dans un nouvel onglet</small></span></a> */
.doc-list,.docs-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.doc-list a,.docs-list a{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:var(--radius-sm);padding:12px 14px;font-weight:600;font-size:.86rem;color:var(--navy);text-decoration:none;background:#fff}
.doc-list a:hover,.docs-list a:hover{border-color:var(--orange);background:var(--orange-soft)}
.doc-list svg.i,.docs-list svg.i{color:var(--orange-ink);font-size:1.5rem;flex:none}
.doc-list span,.docs-list span{min-width:0}
.doc-list small,.docs-list small{display:block;font-weight:500;color:var(--muted);font-size:.74rem;margin-top:2px}
/* Poids affiché à droite via data-size (renseigné par le Frontend/JS) */
.doc-list a[data-size]::after{content:attr(data-size);margin-inline-start:auto;flex:none;font:700 .7rem var(--font);color:var(--muted);background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);padding:4px 10px;white-space:nowrap}
.docs-note{font-size:.8rem;color:var(--muted);margin:0 0 12px}

/* ================= 9. GAMME-BADGE (Vingcard/Elsafe/Vostio/Visionline) ===== */
/* Frontend : <span class="gamme-badge" data-gamme="vingcard">Vingcard</span> */
.gamme-badge{display:inline-flex;align-items:center;gap:7px;font:700 .68rem var(--font);letter-spacing:.08em;text-transform:uppercase;padding:6px 12px;border-radius:var(--radius-pill);border:1px solid transparent;white-space:nowrap}
.gamme-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:currentColor;flex:none}
.gamme-badge[data-gamme="vingcard"]{background:var(--navy);color:#fff}
.gamme-badge[data-gamme="elsafe"]{background:#0b3d2e;color:#fff}      /* vert profond 12.4:1 ✅ */
.gamme-badge[data-gamme="vostio"]{background:#12325c;color:#fff}      /* bleu nuit 11.2:1 ✅ */
.gamme-badge[data-gamme="visionline"]{background:#7a2e00;color:#fff}  /* orange brûlé 7.4:1 ✅ */
.gamme-badge[data-gamme="polarbar"]{background:#1a3a5c;color:#fff}
.gamme-badge[data-gamme="mobile"]{background:#fff;color:var(--navy);border-color:var(--orange)}
.gamme-badge[data-gamme="iass"]{background:var(--orange);color:var(--navy)}

/* ================= 10. CERT-BANNER (CE/FCC/UL/EPD/REACH/RoHS/ADA) ========== */
/* Frontend : <div class="cert-banner" aria-label="Certifications"><span class="cert-label">Certifications</span><span class="cert-pill">CE</span>… */
.cert-banner{display:flex;flex-wrap:wrap;gap:8px;align-items:center;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:12px 14px;margin-top:14px}
.cert-banner .cert-label{font:800 .68rem var(--font);letter-spacing:.1em;text-transform:uppercase;color:var(--navy);margin-inline-end:4px}
.cert-pill{display:inline-flex;align-items:center;gap:6px;font:700 .7rem var(--font);color:var(--navy);background:#fff;border:1px solid var(--line-2);border-radius:6px;padding:5px 10px;letter-spacing:.04em}
.cert-pill::before{content:"✓";color:var(--ok);font-weight:800}

/* ================= 11. SIMILAIRES (réutilise .card/.pic/.lab/.go) ========= */
.similaires,.related{margin-top:40px}
.similaires h2,.related h2{color:var(--navy);font-size:clamp(1.1rem,2.4vw,1.4rem);margin:0}
.sim-grid,.related-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:16px}
.sim-grid .card .pic,.related-grid .card .pic{aspect-ratio:4/3;background-color:#fff;background-position:center;background-size:contain;background-repeat:no-repeat}
.related-head{display:flex;justify-content:space-between;align-items:flex-end;gap:16px}
.see-all,.back-row a{color:var(--orange-ink);font-weight:700;font-size:.82rem}
.see-all:hover,.back-row a:hover{text-decoration:underline}
.back-row{margin-top:18px}
.pdp-back{display:inline-flex;align-items:center;gap:8px;margin-top:26px;font-weight:700;color:var(--navy);border:1px solid var(--line);padding:10px 18px;border-radius:var(--radius-pill);background:#fff;text-decoration:none;min-height:44px}
.pdp-back:hover{border-color:var(--orange);color:var(--orange-ink)}

/* ================= 12. ÉTATS : empty / erreur / skeleton ================== */
.notfound,.detail-error,.detail-empty{text-align:center;padding:60px 20px;background:#fff;border:1px dashed var(--line-2);border-radius:14px}
.notfound h1,.detail-error h1{margin:0 0 10px;color:var(--navy);font-size:clamp(1.3rem,3vw,1.8rem)}
.notfound p,.detail-error p{color:var(--muted);max-width:52ch;margin:0 auto 14px}
.notfound a,.detail-error a{color:var(--orange-ink);font-weight:700}
.detail-error .code{display:inline-block;background:var(--ko-bg);color:var(--ko);font:800 .7rem var(--font);letter-spacing:.1em;padding:6px 12px;border-radius:var(--radius-pill);margin-bottom:12px}
/* Skeleton fiche (affiché pendant fetch) */
.skeleton{display:grid;gap:12px}
.skeleton .sk-line,.skeleton .sk-block{border-radius:8px;background:linear-gradient(90deg,#eef0f4 25%,#f7f8fa 50%,#eef0f4 75%);background-size:200% 100%;animation:shimmer 1.4s infinite;border:1px solid var(--line)}
.skeleton .sk-block{min-height:280px}
.skeleton .sk-line{height:16px}
@keyframes shimmer{to{background-position:-200% 0}}

/* ================= 13. RESPONSIVE ======================================== */
@media(max-width:1000px){
  .detail-layout,.pdp-grid,.product-detail{grid-template-columns:minmax(0,1fr)}
  .sim-grid,.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media(max-width:640px){
  .tabs{gap:6px}
  .tab-btn{flex:1 1 auto;justify-content:center;padding:10px 12px;font-size:.76rem}
  .tab-panel{padding:16px}
  .pdp-ctas .btn{flex:1 1 100%;justify-content:center}
  .feature-grid{grid-template-columns:minmax(0,1fr)}
  .doc-list a[data-size]::after{display:none} /* poids masqué, place gardée via <small> */
}
@media(max-width:560px){
  .sim-grid,.related-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:10px}
  .pdp-gallery{padding:12px}
  .cert-banner{padding:10px}
}
@media(max-width:380px){
  .sim-grid,.related-grid{grid-template-columns:minmax(0,1fr)}
  .tabs{flex-direction:column}
  .tab-btn{border-radius:8px;border-bottom:1px solid var(--line)}
  .tab-panel{border-radius:10px;border-top:1px solid var(--line);margin-top:8px}
}
@media(min-width:1440px){
  .detail-layout,.pdp-grid{max-width:var(--container-max-xl)}
}

/* ================= 14. REDUCED MOTION / PRINT FICHE ====================== */
@media (prefers-reduced-motion: reduce){
  .skeleton .sk-line,.skeleton .sk-block{animation:none;background:#eef0f4}
  .thumbs button,.pdp-thumbs button,.tab-btn,.pdp-back{transition:none}
}
@media print{
  .top,footer,.wa-float,.pdp-ctas,.pdp-thumbs,.request-actions,.tabs,.pdp-back,.similaires,.related,.cert-banner{display:none !important}
  body{background:#fff}
  .detail-layout,.pdp-grid{grid-template-columns:1fr 1fr;gap:20px}
  .tab-panel{display:block !important;border:1px solid #999;margin-top:10px;break-inside:avoid}
  .tab-panel[hidden]{display:block !important}
  .spec-table,.spec-table th,.spec-table td{border-color:#666}
  .spec-table th{background:#eee;color:#000}
  .pdp-gallery{box-shadow:none}
  .pdp-title,.pdp-ref{color:#000}
  a[href^="http"]::after{content:" (" attr(href) ")";font-size:.7em;color:#333}
}