@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;500;600;700;800;900&display=swap');:root{--blue:#3F69A2;--navy:#3F69A2;--green:#8BC53F;--orange:#F4D03F;--ink:#4B5043}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Montserrat,Arial,sans-serif;color:var(--ink);line-height:1.65}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}.wrap{width:min(1180px,91%);margin:auto}header{height:90px;display:flex;align-items:center;justify-content:space-between;padding:0 4.5%;background:white;position:sticky;top:0;z-index:20;box-shadow:0 2px 15px #0c2b4a13}.brand{display:flex;align-items:center;gap:11px}.mark{font-size:35px;line-height:1;font-weight:900;color:var(--blue)}.dot{font-size:13px;color:var(--orange);vertical-align:top}.brand-sub{font-size:20px;font-weight:800;color:var(--green);line-height:1.15}.brand-sub small{display:block;font-size:8px;letter-spacing:1px;color:var(--navy);margin-top:4px}nav{display:flex;align-items:center;gap:23px;font-size:12px;font-weight:700}nav a:hover{color:var(--orange)}.navcta{background:var(--orange);padding:12px 17px;color:white;border-radius:7px}.menu{display:none}.hero{min-height:600px;background:linear-gradient(90deg,#0b2d59ed 0%,#12396fbd 49%,#12396f12 100%),var(--hero) center/cover;display:flex;align-items:center;color:white}.hero-content{width:min(1180px,91%);margin:auto}.hero-content>*{max-width:660px}.eyebrow{font-weight:800;font-size:12px;letter-spacing:2px;color:#8BC53F}.eyebrow.blue{color:var(--blue)}h1{font-size:clamp(40px,5.5vw,76px);line-height:1.07;margin:18px 0;font-weight:900;letter-spacing:-2px}h2{font-size:clamp(29px,3.1vw,44px);line-height:1.18;letter-spacing:-1px;margin:12px 0 25px;color:var(--navy)}h3{line-height:1.3;margin:0 0 12px;font-size:20px}.hero p{font-size:17px}.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}.btn{border:0;cursor:pointer;border-radius:7px;display:inline-block;padding:15px 24px;font:700 13px Montserrat,Arial}.orange{background:var(--orange);color:white}.ghost{border:1px solid white;color:white}.intro{padding:85px 0;display:grid;grid-template-columns:1.5fr 1fr;gap:90px}.highlights{display:grid;gap:13px;align-content:center}.highlights span{border-left:5px solid var(--green);padding:15px 20px;background:#f2f7ec;font-weight:700}.soft{background:#f2f6fa;padding:85px 0}.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.cards article,.material-grid article{background:white;border-radius:13px;overflow:hidden;box-shadow:0 5px 22px #0a2b5010}.cards img{width:100%;height:220px;object-fit:cover}.cards article div{padding:25px}.cards p,.material-grid p{font-size:14px;margin:0}#materiaux{padding:85px 0}.material-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:17px}.material-grid article{padding:24px;border:1px solid #e7edf4}.material-grid b{font-size:32px;color:var(--green)}.note{font-size:12px;color:#647386;margin-top:24px}.offer{background:var(--blue);color:white;padding:80px 0}.offer h2,.contact h2{color:white}.offers{display:grid;grid-template-columns:1fr 1fr;gap:24px}.offers article{background:#ffffff16;border:1px solid #ffffff40;border-radius:12px;padding:30px}.offers a{color:#8BC53F;font-weight:800}.gallery-section{padding:85px 0}.gallery-section>p,.gallery-section .wrap>p{max-width:840px}.gallery{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}.motif,.photo{margin:0;background:white;border:1px solid #e6ebf2;border-radius:12px;overflow:hidden;box-shadow:0 4px 14px #1431530b}.motif img{width:100%;aspect-ratio:3/4;object-fit:contain;background:white}.photo img{width:100%;height:185px;object-fit:cover}.gallery figcaption{font-size:11px;font-weight:700;padding:10px 12px;color:#425b74}.contact{background:#3F69A2;color:white;padding:80px 0}.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:80px}.contact form{background:white;border-radius:14px;padding:28px;color:var(--ink);display:grid;gap:13px}.contact label{display:grid;gap:5px;font-size:12px;font-weight:700}.contact input,.contact select,.contact textarea{width:100%;padding:12px;border:1px solid #ccd6e1;border-radius:6px;font:inherit;font-size:13px}.contact small{font-size:11px}footer{background:#4B5043;color:white;padding:28px 0}.foot{display:flex;justify-content:space-between;gap:12px;font-size:12px}@media(max-width:900px){.menu{display:block;border:0;background:transparent;font-size:27px;color:var(--blue)}nav{display:none;position:absolute;top:90px;left:0;right:0;background:white;flex-direction:column;padding:24px;align-items:stretch}nav.open{display:flex}.intro,.contact-grid{grid-template-columns:1fr;gap:30px}.material-grid{grid-template-columns:repeat(2,1fr)}.gallery{grid-template-columns:repeat(3,1fr)}}@media(max-width:600px){header{height:76px}nav{top:76px}.hero{min-height:560px}.cards,.offers{grid-template-columns:1fr}.gallery{grid-template-columns:repeat(2,1fr)}.material-grid{grid-template-columns:1fr}.foot{flex-direction:column}.intro,.soft,#materiaux,.gallery-section,.offer,.contact{padding-top:55px;padding-bottom:55px}}
.catalog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:22px;margin-top:30px}.catalog-card{background:white;border-radius:15px;overflow:hidden;box-shadow:0 5px 20px #163a681c;padding-bottom:18px}.catalog-card img{display:block;width:100%;height:245px;object-fit:cover;object-position:top}.catalog-card h3,.catalog-card p{margin:12px 16px}.catalog-card p{font-size:14px}.pick-model{border:0;border-radius:7px;margin:4px 16px;background:#3F69A2;color:white;padding:10px;cursor:pointer}.pick-model:hover{background:#F4D03F}html{scroll-behavior:smooth}

/* En-tête BSF : logo officiel et navigation */
.bsf-header{min-height:110px;height:auto;padding:12px 3%;gap:24px}.bsf-logo{flex:0 1 390px;min-width:200px}.bsf-logo img{width:100%;max-width:390px;height:auto;max-height:90px;object-fit:contain;object-position:left center}.header-right{display:flex;align-items:center;gap:16px;margin-left:auto}.sound-toggle{border:1px solid #d6e3ed;border-radius:24px;background:white;color:var(--blue);padding:8px 12px;cursor:pointer;font-weight:700}.sound-toggle[hidden]{display:none!important}@media(max-width:1100px){.bsf-logo{flex-basis:300px}.bsf-header nav{gap:12px;font-size:11px}}@media(max-width:900px){.bsf-header{min-height:88px}.bsf-logo{flex-basis:300px}.bsf-header nav{top:100%}}@media(max-width:600px){.bsf-header{min-height:76px}.bsf-logo{flex-basis:235px;min-width:0}.bsf-logo img{max-height:64px}.header-right{gap:6px}.bsf-header nav{top:100%}}

/* V4 : en-tête compact, proportions alignées sur le site BSF Dalles Alvéolées. */
:root{--blue:#3F69A2;--green:#8BC53F;--orange:#F4D03F}
body,button,input,select,textarea{font-family:Montserrat,Arial,sans-serif}
.bsf-header{height:82px;min-height:82px;padding:9px clamp(18px,3vw,48px);gap:18px;box-shadow:0 2px 12px #3F69A212}
.bsf-logo{flex:0 0 auto;min-width:0;width:clamp(205px,23vw,340px)}
.bsf-logo img{display:block;width:100%;max-width:none;max-height:64px;object-fit:contain;object-position:left center}
.header-right{gap:12px;min-width:0}
.bsf-header nav{gap:clamp(9px,1.1vw,20px);font-size:clamp(10px,.85vw,13px);white-space:nowrap}
.bsf-header nav .navcta{padding:11px 13px}
.sound-toggle{white-space:nowrap;font-size:12px}
@media(max-width:1100px){.bsf-header{height:76px;min-height:76px}.bsf-logo{width:clamp(205px,28vw,290px)}.bsf-header nav{gap:10px;font-size:11px}}
@media(max-width:900px){.bsf-header{height:76px;min-height:76px}.bsf-logo{width:clamp(185px,42vw,290px)}.bsf-header nav{top:100%;white-space:normal}.header-right{margin-left:auto}}
@media(max-width:600px){.bsf-header{height:70px;min-height:70px;padding:8px 14px}.bsf-logo{width:min(64vw,250px)}.bsf-logo img{max-height:54px}.sound-toggle{font-size:10px;padding:6px 8px}}

/* V7 — proportions de l'en-tête de référence EcoSmart : contenu centré,
   logo compact et navigation sur une seule ligne. */
@media (min-width: 1101px) {
  .bsf-header {
    height: 80px;
    min-height: 80px;
    padding: 0 max(24px, calc((100vw - 1280px) / 2));
    gap: 30px;
  }
  .bsf-logo { width: 205px; flex: 0 0 205px; }
  .bsf-logo img { width: 205px; height: auto; max-height: 62px; }
  .header-right { flex: 1; justify-content: flex-end; gap: 13px; }
  .bsf-header nav { gap: clamp(12px, 1vw, 19px); font-size: 12px; }
  .bsf-header nav .navcta { border-radius: 25px; padding: 13px 18px; background: #1884D4; }
  .sound-toggle { font-size: 11px; padding: 7px 10px; white-space: nowrap; }
}
@media (min-width: 901px) and (max-width: 1100px) {
  .bsf-header { padding-left: 22px; padding-right: 22px; }
  .bsf-logo { width: 195px; flex-basis: 195px; }
  .bsf-header nav { gap: 9px; font-size: 10px; }
  .sound-toggle { font-size: 10px; padding: 6px 8px; }
}

/* Calculateur de quantités EPDM */
.calc-section{background:#f2f7fb;padding:70px 0}.calc-panel{background:white;border:1px solid #dbe5ef;border-radius:18px;padding:26px;box-shadow:0 12px 35px #16365b12}.calc-toolbar{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:16px;margin-bottom:20px}.calc-toolbar label{display:grid;gap:8px;font-size:14px;font-weight:700;color:#173759}.calc-panel input,.calc-panel select{width:100%;max-width:100%;border:1px solid #cbd9e6;border-radius:9px;padding:12px;background:white;color:#163453;font:inherit;box-sizing:border-box}.calc-scroll{overflow-x:auto}.calc-table{width:100%;border-collapse:collapse;min-width:720px}.calc-table th{background:#3F69A2;color:#fff;text-align:left;font-size:13px;padding:13px}.calc-table td{border-bottom:1px solid #e4ebf2;padding:10px}.calc-table .calc-area{min-width:100px}.calc-table .calc-color{min-width:235px}.calc-table .calc-hcl{min-width:180px}.calc-remove{border:0;background:#fff1ed;color:#c0392b;font-size:24px;border-radius:8px;padding:5px 12px;cursor:pointer}.calc-add{margin:18px 0;border:1px solid #3F69A2;background:white;color:#3F69A2;border-radius:10px;padding:12px 18px;font-weight:700;cursor:pointer}.calc-warning{padding:14px;background:#fff3e2;color:#873f00;border-radius:9px}.calc-empty{padding:15px;color:#526b83}.calc-results{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin:15px 0 26px}.calc-results>div{border:1px solid #dbe5ef;border-radius:12px;padding:15px}.calc-results table{width:100%;border-collapse:collapse}.calc-results td{border-bottom:1px solid #e8edf2;padding:9px 3px}.calc-number{text-align:right;font-weight:700;color:#3F69A2}.calc-panel h3{margin-top:16px}.calc-panel h4{margin:8px 0 14px}.calc-actions{display:flex;gap:12px;flex-wrap:wrap;margin:24px 0}.calc-actions button{cursor:pointer;border:0}.calc-actions button:disabled{opacity:.4;cursor:not-allowed}.calc-email{background:#3F69A2;color:white;border-radius:10px;padding:12px 22px;font-weight:700}.calc-disclaimer,.calc-note{font-size:13px;color:#596f85}.calc-details td{font-size:13px}.calc-zone-label{white-space:nowrap}
@media(max-width:850px){.calc-toolbar,.calc-results{grid-template-columns:1fr}.calc-panel{padding:15px}.calc-section{padding:45px 0}}
@media print{header,.hero,.intro,.soft,.material-grid,.cards,footer,.calc-add,.calc-remove,.calc-actions,nav{display:none!important}.calc-section{padding:0;background:#fff}.calc-panel{box-shadow:none;border:0}.calc-toolbar{display:none}.calc-section .wrap>p{display:none}.calc-table{min-width:0}}

.calc-auto-resin{max-width:460px;margin:0;padding:10px 14px;background:#edf7fc;border-radius:9px;font-size:.85rem;line-height:1.5;color:#163957}

/* Diaporama d'accueil BSF EPDM */
.hero{position:relative;isolation:isolate;background:#3F69A2;overflow:hidden}
.hero-slides,.hero-shade{position:absolute;inset:0;pointer-events:none}
.hero-slides{z-index:-2}
.hero-slide{position:absolute;inset:0;background-position:center;background-size:cover;opacity:0;transition:opacity .9s ease-in-out}
.hero-slide.active{opacity:1}
.hero-shade{z-index:-1;background:linear-gradient(90deg,rgba(11,45,89,.94) 0%,rgba(18,57,111,.72) 47%,rgba(18,57,111,.08) 100%)}
.hero-content{position:relative;z-index:1}
nav .navcalc{background:#F4D03F;color:white;padding:12px 17px;border-radius:7px;white-space:nowrap}
nav .navcalc:hover{background:#F4D03F;color:white}
@media (prefers-reduced-motion:reduce){.hero-slide{transition:none}}

/* V15 — Charte graphique officielle BSF et boutons de navigation */
:root{--blue:#3F69A2;--navy:#3F69A2;--green:#8BC53F;--ink:#4B5043;--bsf-sky:#1884D4;--bsf-light:#ADF5FF;--bsf-yellow:#F4D03F}
.bsf-header nav .navcalc,.bsf-header nav .navcta{
 display:inline-flex;align-items:center;justify-content:center;
 width:152px;min-width:152px;height:43px;box-sizing:border-box;
 padding:0 12px;border-radius:999px;background:#F4D03F;
 color:#fff;font-size:11px;font-weight:800;line-height:1.15;
 white-space:nowrap;text-align:center;transition:background-color .2s ease;
}
.bsf-header nav .navcalc:hover,.bsf-header nav .navcta:hover{background:#F4D03F;color:#fff}
@media(min-width:901px) and (max-width:1150px){
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:130px;min-width:130px;height:40px;font-size:10px;padding:0 8px}
}
@media(max-width:900px){
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:100%;min-width:0;height:44px;border-radius:999px}
}
/* Diaporama visible : les couches ne doivent pas passer derrière le fond du héros */
.hero{position:relative;isolation:isolate;background:#3F69A2;overflow:hidden}
.hero-slides{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero-slide{position:absolute;inset:0;opacity:0;background-position:center;background-size:cover;transition:opacity .9s ease-in-out}
.hero-slide.active{opacity:1}
.hero-shade{position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(90deg,rgba(31,65,107,.84) 0%,rgba(38,85,138,.54) 48%,rgba(30,65,110,.06) 100%)}
.hero-content{position:relative;z-index:2}
@media(prefers-reduced-motion:reduce){.hero-slide{transition:none}}

/* V16 : Calculateur orange, Demander un devis bleu BSF ; boutons jumeaux */
.bsf-header nav .navcalc{background:#F4D03F;color:#fff}
.bsf-header nav .navcta{background:#3F69A2;color:#fff}
.bsf-header nav .navcalc:hover{background:#F4D03F;color:#fff}
.bsf-header nav .navcta:hover{background:#1884D4;color:#fff}

/* V17 : titre d'accueil plus compact, premiere phrase sur une ligne */
.hero-content h1{font-size:clamp(32px,3.5vw,49px);letter-spacing:-1.2px;line-height:1.14}
@media(min-width:701px){.hero-content h1{max-width:850px}}
@media(max-width:700px){.hero-content h1{font-size:clamp(30px,6.1vw,40px);letter-spacing:-.7px}}

/* Catalogue de motifs et jeux EPDM */
.product-catalog{padding-top:62px;padding-bottom:62px}.product-catalog .catalog-controls{display:flex;align-items:center;gap:20px;margin:20px 0}.catalog-controls input{width:min(100%,430px);padding:13px;border:1px solid #ccd9e7;border-radius:14px;font:inherit}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:18px;margin:26px 0}.product-card{background:white;border:1px solid #e4eaf0;border-radius:17px;overflow:hidden;box-shadow:0 4px 18px #17426c12}.product-card>img{width:100%;height:170px;object-fit:contain;background:#f9fbfd;padding:10px}.product-info{padding:14px}.product-info h3{font-size:1rem;margin:0 0 5px}.product-info p{font-size:.82rem;margin:7px 0}.product-ref{font-weight:700;color:#3f69a2}.product-price{font-weight:800;color:#193b64;font-size:1.08rem!important}.product-price-note{color:#6b7783}.product-add{background:#F4D03F;border:0;color:white;border-radius:30px;padding:10px 14px;cursor:pointer;font-weight:700}.color-palette{margin:36px 0}.color-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(95px,1fr));gap:13px}.color-item{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;font-size:.75rem}.color-item img{width:80px;height:80px;object-fit:contain;border-radius:50%}.color-item small{color:#5a6977}.selection-line{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 0;border-bottom:1px solid #e4eaf0;flex-wrap:wrap}.selection-line input{width:65px;padding:7px}.selection-line button{border:1px solid #b4c4d2;border-radius:8px;background:white;padding:8px}.shipping-fields{margin:24px 0;max-width:520px}.shipping-fields input{display:block;width:100%;padding:12px;margin-top:8px;border:1px solid #a6b7c8;border-radius:12px}.shipping-suggestions{display:flex;flex-direction:column;align-items:stretch;gap:3px}.shipping-suggestions button{background:#f5faff;border:1px solid #d9e6f1;text-align:left;padding:9px;cursor:pointer}.selection-total{font-weight:800;color:#3f69a2}.catalog-disclaimer{font-size:.8rem;color:#657380}.product-catalog textarea{display:block;max-width:600px;width:100%;margin:8px 0 18px;padding:12px;border:1px solid #a6b7c8;border-radius:12px}

/* Catalogue v19 : cartes à boutons alignés */
.product-card{display:flex;flex-direction:column;min-width:0}.product-card>img{flex-shrink:0}.product-info{display:flex;flex-direction:column;flex:1}.product-info .product-add{margin-top:auto;align-self:stretch;min-height:42px}.product-price-note{margin-bottom:14px!important}

/* v20 : destination complète et saisie par code postal ou ville */
.shipping-pair{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:end}
.shipping-pair label{display:flex;flex-direction:column;gap:6px;min-width:0}
.shipping-pair input{width:100%;box-sizing:border-box}
.shipping-help{font-size:.85rem;color:#4b5043;margin:7px 0}
.shipping-suggestions button{display:block;width:100%;text-align:left;cursor:pointer}
@media(max-width:600px){.shipping-pair{grid-template-columns:1fr}}

/* Catalogue : navigation par catégories et accès permanent au devis */
.catalog-controls{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.catalog-category-label{display:flex;align-items:center;gap:8px;font-weight:700}.catalog-category-label select{border:1px solid #cdd6df;border-radius:12px;padding:12px;background:#fff;color:#24313a;max-width:100%;font:inherit}.catalog-floating-cta{position:fixed;bottom:20px;right:20px;z-index:9999;display:block;padding:14px 22px;border-radius:999px;background:#F4D03F;color:#fff;text-decoration:none;font-weight:800;box-shadow:0 5px 18px #0004;max-width:calc(100vw - 40px);text-align:center}.catalog-floating-cta[hidden]{display:none!important}.product-grid{scroll-margin-top:95px}@media(max-width:650px){.catalog-floating-cta{right:12px;left:12px;bottom:12px;padding:13px 16px}.catalog-category-label{width:100%}.catalog-category-label select{flex:1;min-width:0}}

.product-image-note{font-size:.72rem!important;line-height:1.35;color:#627183;font-style:italic;margin:8px 0!important}

/* V27 — lisibilité de l'en-tête, dimensions adaptées aux écrans */
@media(min-width:1201px){
 .bsf-header{padding-left:clamp(16px,2.1vw,36px);padding-right:clamp(16px,2.1vw,36px);gap:12px}
 .bsf-logo{width:235px;flex:0 0 235px}
 .bsf-logo img{width:100%;max-height:76px}
 .bsf-header nav{font-size:13px;gap:clamp(10px,1vw,16px)}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:145px;min-width:145px;font-size:11px}
}
@media(min-width:901px) and (max-width:1200px){
 .bsf-logo{width:205px;flex:0 0 205px}
 .bsf-header nav{font-size:11.5px;gap:9px}
}

/* V30 — bandeau équilibré et commande audio dans le diaporama */
.bsf-header{height:80px!important;min-height:80px!important;padding:8px clamp(20px,3.2vw,56px)!important;gap:clamp(24px,4vw,80px)!important;display:flex;align-items:center;justify-content:space-between}
.bsf-logo{flex:0 0 clamp(180px,14vw,205px)!important;width:clamp(180px,14vw,205px)!important;min-width:0!important}
.bsf-logo img{width:100%!important;height:auto!important;max-height:65px!important;object-fit:contain}
.header-right{flex:1;min-width:0;display:flex;justify-content:flex-end;align-items:center;margin-left:0!important}
.bsf-header nav{display:flex;align-items:center;justify-content:flex-end;gap:clamp(12px,1.3vw,22px)!important;font-size:clamp(12px,.87vw,14px)!important;font-weight:700;white-space:nowrap}
.bsf-header nav>a:not(.navcalc):not(.navcta){flex:0 0 auto}
.bsf-header nav .navcalc,.bsf-header nav .navcta{width:auto!important;min-width:0!important;min-height:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;padding:0 18px!important;border-radius:999px;font-size:12px!important;line-height:1.1;white-space:nowrap}
.hero{position:relative}
.hero-sound-toggle{position:absolute;top:18px;right:clamp(18px,3.2vw,56px);z-index:5;background:#fffef2ed;color:#3F69A2;border:1px solid #ffffffa0;border-radius:999px;padding:8px 14px;font:700 12px Montserrat,Arial,sans-serif;box-shadow:0 2px 9px #0002}
.hero-sound-toggle:hover{background:#fff}
@media(min-width:901px) and (max-width:1250px){
 .bsf-header{gap:16px!important;padding-left:20px!important;padding-right:20px!important}
 .bsf-logo{flex-basis:170px!important;width:170px!important}
 .bsf-header nav{gap:9px!important;font-size:11px!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{font-size:10px!important;padding:0 11px!important}
}
@media(max-width:900px){
 .bsf-header{height:76px!important;min-height:76px!important;gap:10px!important;padding:8px 18px!important}
 .bsf-logo{flex:0 0 min(50vw,210px)!important;width:min(50vw,210px)!important}
 .bsf-header nav{display:none;position:absolute;top:100%;left:0;right:0;z-index:30;flex-direction:column;align-items:stretch;gap:8px!important;padding:20px;background:#fff;box-shadow:0 12px 20px #0002;white-space:normal}
 .bsf-header nav.open{display:flex}
 .bsf-header nav a{padding:10px 14px}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:100%!important;min-height:44px;font-size:12px!important}
 .bsf-header .menu{display:block}
 .hero-sound-toggle{top:12px;right:18px;font-size:11px}
}
@media(max-width:600px){.bsf-header{height:70px!important;min-height:70px!important;padding:7px 14px!important}.bsf-logo{flex-basis:min(58vw,195px)!important;width:min(58vw,195px)!important}.bsf-logo img{max-height:54px!important}.hero-sound-toggle{right:12px}}

/* V31 — header à grille équilibrée, navigation centrée, deux commandes son visibles */
@media(min-width:1101px){
 .bsf-header{display:grid!important;grid-template-columns:235px minmax(0,1fr)!important;column-gap:24px!important;padding:8px clamp(22px,3vw,50px)!important;height:84px!important;min-height:84px!important}
 .bsf-logo{width:235px!important;flex:none!important}
 .bsf-logo img{max-height:72px!important}
 .header-right{width:100%;display:flex!important;justify-content:center!important;min-width:0!important}
 .bsf-header nav{width:100%;justify-content:center!important;gap:clamp(13px,1.35vw,22px)!important;font-size:13px!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{padding:0 16px!important;font-size:12px!important}
}
@media(min-width:901px) and (max-width:1100px){
 .bsf-header{gap:14px!important;padding:8px 18px!important}
 .bsf-logo{flex:0 0 170px!important;width:170px!important}
 .header-right{justify-content:center!important}
 .bsf-header nav{gap:9px!important;font-size:11px!important;justify-content:center!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{padding:0 10px!important;font-size:10px!important}
}
.hero-audio-controls{position:absolute;top:16px;right:clamp(18px,3.2vw,56px);z-index:5;display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.hero-audio-controls .sound-toggle{background:#fff;color:#3F69A2;border:1px solid #d9e4ee;border-radius:999px;padding:8px 12px;font:700 12px Montserrat,Arial,sans-serif;box-shadow:0 2px 9px #0002;white-space:nowrap}
.hero-audio-controls .sound-toggle:disabled{opacity:.5;cursor:default}
.hero-audio-controls .sound-toggle:not(:disabled):hover{background:#eaf2fb}
@media(max-width:900px){.hero-audio-controls{top:12px;right:15px;gap:6px}.hero-audio-controls .sound-toggle{font-size:10px;padding:7px 9px}}

/* V32 — réseaux sociaux BSF dans le bandeau, sans liens non vérifiés */
.bsf-social{display:flex;align-items:center;justify-content:center;flex:0 0 auto;gap:8px;padding-left:12px;border-left:1px solid #dce5ef}
.bsf-social a{width:32px;height:32px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;color:#3F69A2;background:#f0f5fb;transition:background .15s,color .15s}
.bsf-social a:hover,.bsf-social a:focus-visible{color:white;background:#3F69A2}
.bsf-social svg{width:17px;height:17px;display:block}
@media(min-width:1101px){.bsf-header{grid-template-columns:clamp(175px,13vw,215px) minmax(0,1fr)!important;column-gap:14px!important;padding-left:clamp(18px,2vw,32px)!important;padding-right:clamp(18px,2vw,32px)!important}.bsf-logo{width:100%!important}.header-right{justify-content:flex-end!important;gap:12px}.bsf-header nav{width:auto!important;flex:1;justify-content:flex-end!important;gap:clamp(9px,.9vw,16px)!important;font-size:clamp(11px,.8vw,13px)!important}.bsf-header nav .navcalc,.bsf-header nav .navcta{padding:0 clamp(10px,1vw,15px)!important;font-size:clamp(10px,.75vw,12px)!important}}
@media(min-width:901px) and (max-width:1100px){.bsf-header{gap:8px!important}.header-right{gap:8px!important}.bsf-header nav{gap:7px!important;font-size:10px!important}.bsf-social{padding-left:8px}.bsf-social a{width:29px;height:29px}}
@media(max-width:900px){.header-right{gap:12px!important}.bsf-social{order:0;margin-left:auto}.bsf-header .menu{order:1}.bsf-social a{width:34px;height:34px}}

/* V33 : quatre reseaux sociaux officiels BSF */
.bsf-social{gap:5px;padding-left:9px}
.bsf-social a{flex:0 0 30px;width:30px;height:30px}
.bsf-social svg{width:17px;height:17px}
@media(max-width:1150px) and (min-width:901px){.bsf-header nav{gap:7px!important}.header-right{gap:7px!important}.bsf-social{gap:3px;padding-left:6px}.bsf-social a{flex-basis:27px;width:27px;height:27px}}
@media(max-width:900px){.bsf-social{gap:5px;padding-left:0;border-left:0;margin-left:auto}.bsf-social a{flex-basis:30px;width:30px;height:30px}}
@media(max-width:440px){.bsf-logo{width:clamp(130px,34vw,170px)!important;min-width:0!important}.bsf-social{gap:3px}.bsf-social a{flex-basis:25px;width:25px;height:25px}.bsf-social svg{width:15px;height:15px}.header-right{gap:5px!important}}

/* V34 — bandeau centré inspiré des proportions du fabricant.
   Un conteneur de largeur fixe réunit logo, navigation et réseaux sociaux. */
.bsf-header{display:block!important;width:100%!important;height:92px!important;min-height:92px!important;padding:0!important;background:#fff!important;box-shadow:0 2px 12px #3F69A212!important}
.bsf-header-inner{width:min(1320px,calc(100% - 48px));height:100%;margin:0 auto;display:grid;grid-template-columns:205px minmax(0,1fr);column-gap:44px;align-items:center;position:relative}
.bsf-header .bsf-logo{width:205px!important;min-width:0!important;flex:none!important}
.bsf-header .bsf-logo img{width:205px!important;max-height:68px!important;object-fit:contain}
.bsf-header .header-right{width:100%;min-width:0;display:flex!important;align-items:center;justify-content:space-between!important;gap:20px!important;margin:0!important}
.bsf-header nav{display:flex;flex:1;min-width:0;width:auto!important;align-items:center;justify-content:space-between!important;gap:13px!important;font-size:12px!important;font-weight:700;white-space:nowrap}
.bsf-header nav>a:not(.navcalc):not(.navcta){flex:0 0 auto}
.bsf-header nav .navcalc,.bsf-header nav .navcta{min-height:42px!important;height:42px!important;padding:0 17px!important;font-size:11px!important;border-radius:24px!important}
.bsf-header .bsf-social{flex:0 0 auto;gap:7px!important;padding-left:18px!important;margin:0!important;border-left:1px solid #e4e9ef}
.bsf-header .bsf-social a{flex:0 0 31px!important;width:31px!important;height:31px!important}
.bsf-header .menu{display:none}
@media(max-width:1380px) and (min-width:1061px){
 .bsf-header-inner{width:calc(100% - 40px);grid-template-columns:175px minmax(0,1fr);column-gap:24px}
 .bsf-header .bsf-logo,.bsf-header .bsf-logo img{width:175px!important}
 .bsf-header .header-right{gap:12px!important}
 .bsf-header nav{gap:9px!important;font-size:11px!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{padding:0 11px!important;font-size:10px!important}
 .bsf-header .bsf-social{padding-left:10px!important;gap:4px!important}
 .bsf-header .bsf-social a{flex-basis:28px!important;width:28px!important;height:28px!important}
}
@media(max-width:1060px){
 .bsf-header{height:76px!important;min-height:76px!important}
 .bsf-header-inner{width:calc(100% - 32px);grid-template-columns:minmax(150px,1fr) auto;column-gap:14px}
 .bsf-header .bsf-logo{width:190px!important}
 .bsf-header .bsf-logo img{width:190px!important;max-height:58px!important}
 .bsf-header .header-right{width:auto;gap:14px!important;justify-content:flex-end!important}
 .bsf-header .menu{display:block!important;order:2;font-size:26px}
 .bsf-header nav{display:none;position:absolute;top:100%;left:-16px;right:-16px;width:auto!important;z-index:40;flex-direction:column;align-items:stretch;gap:7px!important;padding:18px 22px;background:white;box-shadow:0 12px 22px #0002;white-space:normal}
 .bsf-header nav.open{display:flex}
 .bsf-header nav a{padding:10px 12px}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:100%!important;min-height:44px!important;font-size:12px!important}
 .bsf-header .bsf-social{order:1;margin:0!important;border-left:0;padding-left:0!important;gap:7px!important}
}
@media(max-width:560px){
 .bsf-header{height:70px!important;min-height:70px!important}
 .bsf-header-inner{width:calc(100% - 22px);grid-template-columns:minmax(110px,1fr) auto;column-gap:5px}
 .bsf-header .bsf-logo,.bsf-header .bsf-logo img{width:clamp(115px,31vw,165px)!important}
 .bsf-header .header-right{gap:6px!important}
 .bsf-header .bsf-social{gap:3px!important}
 .bsf-header .bsf-social a{flex:0 0 26px!important;width:26px!important;height:26px!important}
 .bsf-header .bsf-social svg{width:15px;height:15px}
 .bsf-header .menu{font-size:24px;padding:3px}
}

/* V36 : navigation plus lisible sur grand écran, repli anticipé sur tablette. */
@media (min-width:1381px){
 .bsf-header nav{font-size:15px!important;gap:12px!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{font-size:13px!important}
}
@media (min-width:1061px) and (max-width:1380px){
 .bsf-header nav{font-size:14px!important;gap:9px!important}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{font-size:12px!important}
}
@media (min-width:1061px) and (max-width:1240px){
 .bsf-header{height:76px!important;min-height:76px!important}
 .bsf-header-inner{grid-template-columns:minmax(150px,1fr) auto;column-gap:14px}
 .bsf-header .header-right{width:auto;justify-content:flex-end!important;gap:14px!important}
 .bsf-header .menu{display:block!important;order:2;font-size:26px}
 .bsf-header nav{display:none;position:absolute;top:100%;left:-16px;right:-16px;width:auto!important;z-index:40;flex-direction:column;align-items:stretch;gap:7px!important;padding:18px 22px;background:white;box-shadow:0 12px 22px #0002;white-space:normal;font-size:15px!important}
 .bsf-header nav.open{display:flex}
 .bsf-header nav a{padding:10px 12px}
 .bsf-header nav .navcalc,.bsf-header nav .navcta{width:100%!important;min-height:44px!important;font-size:13px!important}
 .bsf-header .bsf-social{order:1;margin:0!important;border-left:0;padding-left:0!important}
}
@media (max-width:1060px){.bsf-header nav.open{font-size:15px!important}}

.highlights .nuancier-link{display:block;border-left:5px solid var(--green);padding:15px 20px;background:#f2f7ec;font-weight:700}.highlights .nuancier-link:hover{background:#e6efd9;color:var(--blue)}.highlights .nuancier-link:focus-visible{outline:3px solid var(--blue);outline-offset:3px}.highlights .nuancier-link span{border:0;padding:0;background:none}

/* V40: print compatibility */
@media print{header .menu,.bsf-social,.catalog-floating-cta,.calc-actions,.navcta{display:none!important}img{break-inside:avoid;max-width:100%!important}section,article,figure{break-inside:avoid}body{-webkit-print-color-adjust:exact;print-color-adjust:exact}}

/* V43: three identical navigation cards */
.highlights>a.nuancier-link{display:flex;align-items:center;justify-content:space-between;gap:12px;border-left:5px solid var(--green);padding:15px 20px;background:#f2f7ec;font-weight:700;min-height:57px}
.highlights>a.nuancier-link:hover{background:#e6efd9;color:var(--blue)}
.highlights>a.nuancier-link span{padding:0;border:0;background:transparent;white-space:nowrap}
.bsf-logo img{width:180px;height:auto;max-height:72px;object-fit:contain}

.catalog-page{padding-top:65px;padding-bottom:90px;min-height:65vh}.catalog-page h1{font-size:clamp(2rem,4vw,3.3rem);margin:12px 0}.catalog-controls{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin:26px 0}.catalog-controls input,.catalog-controls select{border:1px solid #bbc7d2;border-radius:9px;padding:13px;min-width:220px;background:white;color:#172d43}.catalog-controls button{border:0;background:#eaf0f5;padding:13px;border-radius:9px;cursor:pointer}.catalog-results{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:20px}.catalog-product{border:1px solid #e2e6eb;border-radius:14px;overflow:hidden;background:white;box-shadow:0 3px 14px #14283c12}.catalog-product img{width:100%;height:205px;object-fit:contain;background:#f7f9fa}.catalog-product .details{padding:14px}.catalog-product h2{font-size:1.1rem;margin:4px 0}.catalog-product p{font-size:.9rem;margin:5px 0}.catalog-product .code{font-weight:700;color:#3F69A2}.catalog-product .category{font-size:.8rem;color:#526a7c}.catalog-empty{padding:30px;background:#f4f6f8;border-radius:12px}@media print{header,footer,.catalog-controls{display:none!important}.catalog-results{grid-template-columns:repeat(3,1fr)}.catalog-product{break-inside:avoid}}

.bsf-sound-global{position:fixed;right:16px;bottom:16px;z-index:9998}.bsf-sound-global button{background:#3F69A2;color:#fff;border:1px solid #fff;border-radius:24px;padding:11px 16px;box-shadow:0 3px 16px #0004;cursor:pointer;font-weight:700}.bsf-sound-global [hidden]{display:none!important}.gallery.photos figure{cursor:zoom-in}
.bsf-lightbox{position:fixed;inset:0;background:rgba(0,0,0,.93);z-index:10000;display:flex;align-items:center;justify-content:center;gap:12px;padding:55px 65px}.bsf-lightbox[hidden]{display:none}.bsf-lightbox img{max-width:100%;max-height:83vh;object-fit:contain}.bsf-lightbox button{border:1px solid #aaa;background:#222;color:white;border-radius:50%;width:42px;height:42px;font-size:26px;cursor:pointer}.bsf-lightbox .close{position:absolute;right:20px;top:16px}.bsf-lightbox .count{position:absolute;bottom:14px;color:white}@media(max-width:600px){.bsf-lightbox{padding:55px 8px;gap:2px}.bsf-lightbox button{width:32px;height:38px}}

/* V49: catalogue images uniformly centered, no product clipping */
.catalog-product img{display:block;width:100%;height:205px;object-fit:contain;object-position:center center;background:#fff;padding:9px;box-sizing:border-box}
.catalog-product{display:flex;flex-direction:column}.catalog-product .details{flex:1}

/* V55 — sélection commune et demande de devis */
.quote-entry{background:#f2f7ec;border-left:5px solid var(--green);padding:22px;margin:25px 0;display:flex;flex-wrap:wrap;gap:16px;align-items:center}.quote-entry p{margin:6px 0}.quote-entry>div{flex:1 1 450px}.quote-entry>a:last-child{font-size:14px;font-weight:700}.product-select{position:relative;display:block;width:100%;padding:0;border:0;background:#f7f9fa;cursor:pointer;font:inherit;color:var(--blue)}.product-select:hover{background:#e8f2dc}.product-select:focus-visible{outline:3px solid var(--orange);outline-offset:-3px}.select-label{display:block;padding:10px;font-size:12px;font-weight:800}.catalog-product.is-selected{outline:3px solid var(--green)}.is-selected .select-label{background:#e4f2d5;color:#365d16}.quote-links{display:flex;flex-wrap:wrap;align-items:center;gap:22px;margin:25px 0;font-weight:700}.quote-panel{scroll-margin-top:130px;background:#f4f7fa;border-radius:16px;padding:30px;margin-top:45px}.quote-line{display:grid;grid-template-columns:70px minmax(0,1fr) 110px auto;gap:15px;align-items:center;padding:16px 0;border-bottom:1px solid #cbd8df}.quote-line img{height:65px;width:70px;object-fit:contain}.quote-line button,.quote-places button{border:1px solid #b6c6d3;background:white;border-radius:7px;padding:10px;cursor:pointer;color:var(--blue)}.quote-line input{width:90px}.quote-panel fieldset{border:1px solid #cbd8df;border-radius:10px;margin:25px 0;padding:20px;min-width:0}.quote-panel legend{font-weight:800;color:var(--blue);padding:0 8px}.quote-panel label{display:grid;gap:5px;font-size:13px;font-weight:700}.quote-fields{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}.quote-panel input,.quote-panel select,.quote-panel textarea{width:100%;padding:12px;border:1px solid #abbecb;border-radius:7px;font:inherit;background:white;color:var(--ink)}.quote-panel .manual-place{display:flex;align-items:flex-start;font-size:12px;font-weight:500}.manual-place input{width:auto;margin-top:5px}.quote-places{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.quote-secondary{background:#e1e9f1;color:var(--blue);margin:10px 0}.quote-help{font-size:12px;max-width:800px}.quote-panel textarea{resize:vertical}#selection-status:empty{display:none}#quote-status{font-weight:700}a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:3px}@media(max-width:600px){.quote-panel{padding:16px}.quote-fields{grid-template-columns:1fr}.quote-line{grid-template-columns:55px minmax(0,1fr)}.quote-line label,.quote-line button{grid-row:2}.quote-line label{grid-column:2}.quote-line button{grid-column:1;padding:6px;font-size:11px}.quote-entry{padding:16px}.quote-links{gap:12px}}

/* V58 — lieu de livraison pour les devis et le calculateur */
.delivery-box{border:1px solid #c5d3df;border-radius:10px;padding:20px;margin:0 0 22px;min-width:0;background:#f6f9fc;color:var(--ink)}.delivery-box legend{font-weight:800;color:var(--blue);padding:0 8px}.delivery-box p{font-size:13px}.delivery-box label{display:grid;gap:5px;font-size:13px;font-weight:700}.delivery-box input{width:100%;border:1px solid #abbecb;border-radius:7px;padding:12px;font:inherit;background:white;color:var(--ink)}.delivery-box .delivery-manual{display:flex;align-items:flex-start;font-size:12px;font-weight:500}.delivery-manual input{width:auto;margin-top:5px;flex-shrink:0}.delivery-box [data-place-status]{font-weight:700}.delivery-box .quote-places button:focus-visible{outline:3px solid var(--orange)}@media print{.delivery-box .quote-places,.delivery-manual,.delivery-box>p:first-of-type{display:none!important}.delivery-box{break-inside:avoid}}

/* V60 : vider le panier */
.selection-clear{background:#8BC53F;color:#173505;margin:0 0 12px}.selection-clear:hover:not(:disabled){background:#8BC53F}.selection-clear:disabled{opacity:.5;cursor:default}#selection-clear-status{font-size:13px;font-weight:700}#selection-clear-status:empty{display:none}