/* Sac kraft — design commun CBS Emballages */
:root{
  --navy:#003366; --navy-dark:#002244; --green:#1C8048; --text:#4A5568;
  --bg:#F7F7F7; --white:#ffffff; --line:#D5D7DA;
  --radius-lg:32px; --radius-md:24px; --pill:999px;
  --font:'Inter','Noto Sans SC','Noto Sans JP',sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--text);background:var(--bg);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1176px;margin:0 auto;padding:0 24px}

/* ---------- barre groupe ---------- */
.groupbar{background:var(--navy);color:#cfdcef;font-size:12px;min-height:34px;display:flex;align-items:center}
.gb-in{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding-top:4px;padding-bottom:4px}
.gb-left{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.gb-left a{color:#fff;text-decoration:underline;text-underline-offset:2px}
.gb-langs{display:flex;gap:12px;flex-shrink:0}
.gb-langs a{color:#cfdcef;font-weight:600}
.gb-langs a.on,.gb-langs a:hover{color:#fff}

/* ---------- en-tête pilule ---------- */
.hd-wrap{background:var(--bg);padding:14px 0}
.hd-pill{background:var(--white);border:1px solid var(--line);border-radius:var(--pill);min-height:72px;
  display:flex;align-items:center;gap:24px;padding:10px 14px 10px 28px}
.logo{display:flex;flex-direction:column;line-height:1.1;flex-shrink:0}
.logo-name{font-weight:800;font-size:20px;color:var(--navy);letter-spacing:.5px;display:flex;align-items:center;gap:8px}
.logo-name::after{content:"";width:22px;height:3px;background:var(--green);border-radius:2px}
.logo-sub{font-size:11px;color:var(--text)}
.hd-nav{display:flex;align-items:center;gap:22px;margin-left:auto;font-weight:600;font-size:14.5px;color:var(--navy)}
.hd-nav>a:hover{color:var(--green)}
.drop{position:relative}
.drop>summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:5px;font-weight:600;color:var(--navy)}
.drop>summary::-webkit-details-marker{display:none}
.drop>summary .caret{font-size:10px}
.drop[open]>summary{color:var(--green)}
.drop-menu{position:absolute;top:calc(100% + 14px);left:50%;transform:translateX(-50%);background:var(--white);
  border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 40px rgba(0,34,68,.14);padding:10px;min-width:190px;z-index:60;
  display:flex;flex-direction:column}
.drop-menu a{padding:9px 14px;border-radius:10px;font-size:14px;font-weight:500;color:var(--text);white-space:nowrap}
.drop-menu a:hover{background:var(--bg);color:var(--navy)}
.drop-menu a.on{color:var(--green);font-weight:700}
.hd-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.lang-pill{border:1px solid var(--line);border-radius:var(--pill);padding:8px 16px;background:var(--white);font-size:13.5px}
.lang-drop .drop-menu{left:auto;right:0;transform:none;max-height:320px;overflow:auto}

/* ---------- boutons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--green);color:#fff;
  border-radius:var(--pill);padding:13px 28px;font-weight:700;font-size:15px;border:2px solid var(--green);
  cursor:pointer;transition:background-color .2s,transform .2s;font-family:var(--font)}
.btn:hover{background:#157041;transform:translateY(-1px)}
.btn-sm{padding:9px 20px;font-size:13.5px}
.btn-outline{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:#fff}
.btn-white-outline{background:transparent;color:#fff;border-color:#fff}
.btn-white-outline:hover{background:#fff;color:var(--navy)}

/* ---------- étiquettes + titres ---------- */
.tag{display:inline-block;background:var(--navy);color:#fff;font-weight:700;
  font-size:12.5px;letter-spacing:.5px;padding:8px 20px;border-radius:var(--pill)}
.sec{padding:72px 0}
.sec-alt{background:var(--white)}
.sec-head{text-align:center;margin-bottom:44px}
.sec-head h2{font-size:36px;font-weight:800;color:var(--navy);margin-top:18px;line-height:1.2}
.sec-head h2::after{content:"";display:block;width:56px;height:3px;background:var(--green);border-radius:2px;margin:14px auto 0}
.sec-sub{max-width:640px;margin:14px auto 0;font-size:15.5px}

/* ---------- hero ---------- */
.hero{padding:14px 0 72px}
.hero-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;height:620px;background:var(--navy)}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero-ov{position:absolute;inset:0;background:linear-gradient(90deg,rgba(0,51,102,.94) 0%,rgba(0,51,102,.72) 38%,rgba(0,51,102,.15) 68%,rgba(0,51,102,0) 100%)}
.hero-content{position:relative;z-index:2;height:100%;display:flex;flex-direction:column;justify-content:center;
  max-width:600px;padding:0 64px;color:#fff}
.hero-kicker{font-size:13px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:#9fd4b6;margin-bottom:16px}
.hero-content h1{font-size:52px;font-weight:800;line-height:1.08;margin-bottom:18px;color:#fff}
.hero-text{font-size:16.5px;color:#dce6f2;margin-bottom:30px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:44px;height:44px;border-radius:50%;
  border:none;background:rgba(255,255,255,.18);color:#fff;font-size:22px;cursor:pointer;backdrop-filter:blur(4px);
  transition:background-color .2s;font-family:var(--font)}
.hero-arrow:hover{background:rgba(255,255,255,.35)}
.hero-arrow.prev{left:18px}.hero-arrow.next{right:18px}
.hero-dots{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);z-index:3;display:flex;gap:8px}
.hero-dots span{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.45)}
.hero-dots span.on{background:#fff}

/* ---------- cartes produits ---------- */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.pcard{background:var(--bg);border-radius:var(--radius-md);padding:30px;display:flex;flex-direction:column;
  transition:transform .25s,box-shadow .25s}
.pcard:hover{transform:translateY(-5px);box-shadow:0 18px 36px rgba(0,34,68,.10)}
.pcard-img{background:#fff;border-radius:16px;padding:22px;margin-bottom:22px}
.pcard h3{color:var(--navy);font-size:18px;font-weight:800;margin-bottom:8px}
.pcard p{font-size:14.5px;margin-bottom:16px;flex:1}
.plink{color:var(--green);font-weight:700;font-size:14px;text-transform:uppercase;letter-spacing:.6px}
.plink:hover{text-decoration:underline}

/* ---------- bandeau vignettes ---------- */
.strip{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;background:var(--white);
  border-radius:var(--radius-lg);padding:26px}
.strip figure{position:relative;border-radius:18px;overflow:hidden;background:#fff}
.strip img{width:100%;height:220px;object-fit:contain;padding:10px}
.strip figcaption{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);background:#fff;
  border-radius:var(--pill);padding:6px 16px;font-size:12.5px;font-weight:700;color:var(--navy);
  box-shadow:0 4px 12px rgba(0,34,68,.14);white-space:nowrap}

/* ---------- à propos ---------- */
.about-grid{display:grid;grid-template-columns:1fr 1.35fr;gap:26px}
.about-card{background:var(--white);border-radius:var(--radius-md);padding:44px}
.about-cta{display:flex;flex-direction:column;align-items:flex-start;justify-content:center}
.about-big{font-size:44px;font-weight:800;color:var(--navy);line-height:1.12;margin-bottom:14px}
.about-big em{font-style:normal;color:var(--green)}
.about-sub{font-size:14px;margin-bottom:24px}
.about-txt p{margin-bottom:16px;font-size:15.5px}
.qa-title{text-align:center;color:var(--navy);font-size:16px;font-weight:800;margin:40px 0 18px;text-transform:uppercase;letter-spacing:1px}
.qa-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.qa{background:var(--white);border-radius:18px;padding:24px;font-size:14.5px;border-top:3px solid var(--green);
  box-shadow:0 10px 30px rgba(0,34,68,.08)}

/* ---------- environnement ---------- */
.env-banner{background:var(--green);border-radius:var(--radius-lg);display:grid;grid-template-columns:1fr 1.1fr;
  overflow:hidden;color:#fff}
.env-img img{width:100%;height:100%;object-fit:cover;min-height:340px}
.env-body{padding:56px 52px;display:flex;flex-direction:column;justify-content:center;align-items:flex-start}
.env-body h2{font-size:32px;font-weight:800;color:#fff;line-height:1.15;margin-bottom:16px}
.env-body p{color:#e3f3e9;font-size:15.5px;margin-bottom:24px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:28px}
.chips span{border:1.5px solid rgba(255,255,255,.7);color:#fff;border-radius:var(--pill);
  padding:7px 18px;font-size:13px;font-weight:700}

/* ---------- usages ---------- */
.usage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.usage{display:block;position:relative;border-radius:20px;overflow:hidden;height:230px;background:#e9e9e9}
.usage img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.usage:hover img{transform:scale(1.05)}
.usage-cap{position:absolute;inset:auto 0 0 0;padding:44px 20px 16px;color:#fff;font-weight:700;font-size:15.5px;
  background:linear-gradient(180deg,transparent,rgba(0,34,68,.85))}

/* ---------- carrousel groupe ---------- */
.car-wrap{position:relative}
.car{display:flex;gap:22px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px;scrollbar-width:none}
.car::-webkit-scrollbar{display:none}
.gcard{flex:0 0 calc(33.333% - 15px);scroll-snap-align:start;background:var(--white);border-radius:var(--radius-md);
  padding:34px;display:flex;flex-direction:column;border:1px solid #ececec}
.gcard h3{color:var(--navy);font-size:18px;font-weight:800;margin-bottom:10px}
.gcard p{font-size:14.5px;flex:1;margin-bottom:18px}
.glink{color:var(--green);font-weight:700;font-size:13.5px;text-transform:uppercase;letter-spacing:.6px}
.car-btn{position:absolute;top:50%;transform:translateY(-50%);z-index:3;width:46px;height:46px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--navy);font-size:22px;cursor:pointer;
  box-shadow:0 8px 20px rgba(0,34,68,.12);transition:background-color .2s;font-family:var(--font)}
.car-btn:hover{background:var(--navy);color:#fff}
.car-btn.prev{left:-12px}.car-btn.next{right:-12px}

/* ---------- contact ---------- */
.contact-panel{background:var(--navy);border-radius:var(--radius-lg);padding:56px;display:grid;
  grid-template-columns:1fr 1.15fr;gap:48px;color:#fff}
.cp-left h2{color:#fff;font-size:34px;font-weight:800;margin-bottom:14px}
.cp-left p{color:#b9cbe0;font-size:15px;margin-bottom:30px}
.cp-coords{list-style:none;display:flex;flex-direction:column;gap:16px;font-size:15px}
.cp-coords strong{display:block;color:#8fd4ac;font-size:12px;text-transform:uppercase;letter-spacing:1.2px;margin-bottom:2px}
.cp-coords a:hover{color:#8fd4ac}
.cp-form{background:#fff;border-radius:var(--radius-md);padding:34px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.cp-form label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:700;color:var(--navy)}
.cp-form .full{grid-column:1/-1}
.cp-form input,.cp-form textarea{border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  font-family:var(--font);font-size:14.5px;color:var(--text);background:#fff;width:100%}
.cp-form input:focus,.cp-form textarea:focus{outline:2px solid var(--green);outline-offset:0;border-color:var(--green)}
.cp-form textarea{resize:vertical;min-height:110px}
.cp-form .btn{grid-column:1/-1;justify-self:start}

/* ---------- pages intérieures ---------- */
.page-head{text-align:center;padding:64px 0 44px}
.page-head h1{font-size:44px;font-weight:800;color:var(--navy);margin-top:18px;line-height:1.15}
.page-head h1::after{content:"";display:block;width:56px;height:3px;background:var(--green);border-radius:2px;margin:14px auto 0}
.page-head .sec-sub{margin-top:16px}
.prod-hero{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.prod-hero-img{background:#fff;border-radius:var(--radius-md);padding:40px}
.prod-hero-txt h2{color:var(--navy);font-size:26px;font-weight:800;margin-bottom:14px}
.prod-hero-txt p{margin-bottom:14px;font-size:15.5px}
.prod-note{display:inline-block;background:#e8f4ec;color:var(--green);font-weight:700;font-size:13.5px;
  border-radius:var(--pill);padding:8px 20px;margin:8px 0 24px}
.prose{background:#fff;border-radius:var(--radius-md);padding:48px;max-width:840px;margin:0 auto}
.prose p{margin-bottom:14px;font-size:15.5px}
.prose strong{color:var(--navy)}
.sent-box{text-align:center;background:#fff;border-radius:var(--radius-md);padding:70px 40px;max-width:640px;margin:0 auto}
.sent-box h1{color:var(--navy);font-size:36px;font-weight:800;margin-bottom:14px}
.sent-box h1::after{content:"";display:block;width:56px;height:3px;background:var(--green);border-radius:2px;margin:14px auto 0}
.sent-box p{margin:18px 0 28px}

/* ---------- pied de page ---------- */
footer{background:var(--navy-dark);color:#9db4d0;border-radius:var(--radius-lg) var(--radius-lg) 0 0;
  padding:64px 0 34px;margin-top:40px;font-size:13.5px}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr 1.3fr;gap:36px;margin-bottom:40px}
.f-brand h3{color:#fff;font-size:17px;font-weight:800;letter-spacing:.6px;margin-bottom:12px}
.f-brand p{margin-bottom:10px;line-height:1.7}
footer h4{color:#fff;font-size:13px;font-weight:800;text-transform:uppercase;letter-spacing:1.1px;margin-bottom:14px}
.f-col a{display:block;padding:3px 0;color:#9db4d0}
.f-col a:hover{color:#fff}
.f-col a.on{color:#8fd4ac;font-weight:700}
.f-sites{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
.f-langs{display:flex;align-items:center;gap:14px;flex-wrap:wrap;padding:20px 0;border-top:1px solid rgba(255,255,255,.12)}
.f-langs span{color:#fff;font-weight:700}
.f-langs a{color:#9db4d0}
.f-langs a:hover{color:#fff}
.f-legal{padding-top:16px;font-size:12px;color:#6e89a8}

/* ---------- mobile ---------- */
.mmenu{display:none}
@media(max-width:1024px){
  .hd-nav{display:none}
  .mmenu{display:block}
  .mmenu>summary{list-style:none;border:1px solid var(--line);border-radius:var(--pill);padding:8px 16px;
    cursor:pointer;font-weight:700;color:var(--navy);font-size:13.5px}
  .mmenu>summary::-webkit-details-marker{display:none}
  .mmenu .drop-menu{right:0;left:auto;transform:none}
  .f-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  body{font-size:14px}
  .groupbar .gb-left{display:none}
  .gb-in{justify-content:center}
  .gb-langs{gap:10px;flex-wrap:wrap;justify-content:center}
  .hd-pill{padding:8px 10px 8px 18px;gap:10px}
  .hd-right .btn{display:none}
  .hero-card{height:auto;min-height:480px}
  .hero-content{padding:64px 30px}
  .hero-content h1{font-size:32px}
  .hero-arrow{display:none}
  .sec{padding:52px 0}
  .sec-head h2{font-size:26px}
  .prod-grid,.qa-grid,.usage-grid{grid-template-columns:1fr}
  .about-grid,.env-banner,.prod-hero,.contact-panel{grid-template-columns:1fr}
  .strip{grid-template-columns:repeat(2,1fr)}
  .about-big{font-size:32px}
  .env-body{padding:36px 26px}
  .contact-panel{padding:30px}
  .cp-form{grid-template-columns:1fr;padding:24px}
  .page-head h1{font-size:30px}
  .gcard{flex:0 0 82%}
  .car-btn{display:none}
  .f-grid{grid-template-columns:1fr}
  .f-sites{grid-template-columns:1fr 1fr}
}

/* ---------- animations (v2) ---------- */
.hd-wrap{position:sticky;top:10px;z-index:70}
.hd-pill{transition:min-height .3s,box-shadow .3s}
.hd-wrap.scrolled .hd-pill{min-height:56px;box-shadow:0 12px 32px rgba(0,34,68,.14)}
.btn::after{content:"→";display:inline-block;transition:transform .25s ease}
.btn:hover::after{transform:translateX(4px)}
.pcard-img{overflow:hidden;display:block}
.pcard-img img{transition:transform .45s ease}
.pcard:hover .pcard-img img{transform:scale(1.05)}

/* marquee coloris */
.strip{display:block;overflow:hidden}
.marquee-track{display:flex;gap:18px;width:max-content;animation:sk-marquee 30s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee figure{width:200px;flex:0 0 auto;position:relative}
@keyframes sk-marquee{to{transform:translateX(-50%)}}

/* carrousel hero */
.hslide{position:absolute;inset:0;opacity:0;transition:opacity .9s ease}
.hslide.active{opacity:1;z-index:1}
.hslide .hero-img{transition:transform 7s linear;transform:scale(1)}
.hslide.active .hero-img{transform:scale(1.07)}
.hslide .hero-content>*{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.hslide.active .hero-content>*{opacity:1;transform:none}
.hslide.active .hero-content>*:nth-child(1){transition-delay:.15s}
.hslide.active .hero-content>*:nth-child(2){transition-delay:.3s}
.hslide.active .hero-content>*:nth-child(3){transition-delay:.45s}
.hslide.active .hero-content>*:nth-child(4){transition-delay:.6s}
.hero-h1like{font-size:44px;font-weight:800;line-height:1.1;color:#fff;margin-bottom:18px}
.hero-dot{width:9px;height:9px;border-radius:50%;border:none;background:rgba(255,255,255,.45);cursor:pointer;padding:0;transition:background-color .2s,transform .2s}
.hero-dot.on{background:#fff;transform:scale(1.25)}

/* apparition au défilement */
.rv{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

@media(max-width:768px){
  .hero-card{height:520px}
  .hero-h1like{font-size:28px}
  .marquee figure{width:160px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  .hslide,.hslide .hero-img,.hslide .hero-content>*,.btn::after,.pcard-img img,.hd-pill{transition:none!important}
  .hslide .hero-img{transform:none!important}
  .marquee-track{animation:none}
  .marquee{overflow-x:auto}
  .rv{opacity:1;transform:none}
  .hslide .hero-content>*{opacity:1;transform:none}
}

/* ---------- v4 : maquette validée ---------- */
.about-intro{max-width:840px;margin:0 auto 40px;text-align:center;font-size:15.5px;background:#fff;
  border-radius:24px;padding:36px 44px;box-shadow:0 10px 30px rgba(0,34,68,.08)}
.about-intro p{margin-bottom:14px}
.qa-after{margin-top:28px}
.form-note{font-size:12.5px;color:#8494a7;margin-top:2px}
.form-note a{color:var(--navy);text-decoration:underline}
.form-status{margin:0;font-size:14px;font-weight:600;display:none}
.form-status.ok{display:block;color:var(--green)}
.form-status.ko{display:block;color:#c0392b}
.home-links{display:flex;gap:16px;justify-content:center;margin-top:32px;flex-wrap:wrap}
.faq-list{max-width:840px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border-radius:16px;padding:20px 26px;box-shadow:0 8px 24px rgba(0,34,68,.06)}
.faq-item summary{cursor:pointer;font-weight:700;color:var(--navy);font-size:16px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--green);font-size:22px;font-weight:700;flex-shrink:0}
.faq-item[open] summary::after{content:"–"}
.faq-item p{margin-top:12px;font-size:15px}
.f-credits{margin-top:6px}

/* ---------- v5 : bloc Sites CBS Group + domaine sous le logo ---------- */
.logo-domain{font-size:11px;color:#1C8048;letter-spacing:.3px;font-weight:600}
footer{padding:80px 0 44px}
.f-group-sites{background:#fff;border-radius:24px;padding:34px 44px;margin:12px 0 36px}
.f-group-sites h4{color:#1C8048;margin-bottom:16px}
.fgs-list{columns:4;column-gap:40px}
.fgs-list a{display:block;color:#1C8048;font-size:14px;padding:5px 0}
.fgs-list a:hover{text-decoration:underline}
@media(max-width:1024px){.fgs-list{columns:3}}
@media(max-width:768px){
  .f-group-sites{padding:26px 24px}
  .fgs-list{columns:2;column-gap:24px}
}

/* ---------- v3 : sélecteur de langues unique ---------- */
.lang-pill{display:inline-flex;align-items:center;gap:7px}
.lang-pill svg{color:var(--navy);flex-shrink:0}
@media(max-width:768px){
  .groupbar .gb-left{display:block;white-space:normal;overflow:visible;text-overflow:clip;text-align:center;line-height:1.5}
  .groupbar .gb-left a{text-decoration:underline}
  .hd-pill{gap:8px;padding:8px 8px 8px 14px}
  .logo-name{font-size:17px}
  .logo-sub{font-size:10px}
  .lang-pill{padding:7px 12px;font-size:12.5px}
  .mmenu>summary{padding:7px 12px;font-size:12.5px}
}
.lang-drop .drop-menu{max-height:70vh}