/* ============================================================
   ARTERE e-Commerce — Accueil
   Reproduction fidèle de la référence visuelle
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@400;500;600;700;800&display=swap');

:root{
  --brand:#E1241C;
  --brand-dark:#BF1A14;
  --brand-soft:#FBEAE9;
  --ink:#1E2024;
  --ink-soft:#33363B;
  --muted:#6C6F76;
  --muted-2:#9A9DA3;
  --line:#E7E8EB;
  --surface:#FFFFFF;
  --surface-alt:#F3F3F4;
  --footer:#222222;
  --gold:#C9A24A;
  --footer-2:#1A1A1A;
  --radius:12px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(20,22,26,.04), 0 2px 8px rgba(20,22,26,.05);
  --shadow-md:0 12px 34px rgba(20,22,26,.10);
  --shadow-lg:0 30px 70px rgba(20,22,26,.14);
  --container:1180px;
  --gutter:28px;
  font-synthesis:none;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Work Sans",system-ui,sans-serif;
  color:var(--ink);
  background:var(--surface);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  font-size:16px;
  line-height:1.55;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4,p{margin:0;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--gutter);
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.55em;
  font-weight:600;
  font-size:.95rem;
  line-height:1;
  padding:.92em 1.4em;
  border-radius:999px;
  border:1.5px solid transparent;
  transition:transform .18s ease, background .18s ease, color .18s ease, border-color .18s ease, box-shadow .18s ease;
  white-space:nowrap;
}
.btn svg{width:1.05em;height:1.05em;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(225,36,28,.25);}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.btn-outline{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline:hover{background:var(--brand);color:#fff;}

/* ---------- Section heading ---------- */
.sec-head{text-align:center;max-width:760px;margin:0 auto;}
.sec-head h2{
  font-size:clamp(1.8rem,2.6vw,2.3rem);
  font-weight:700;
  letter-spacing:-.02em;
}
.sec-head .rule{
  width:54px;height:3px;border-radius:3px;background:var(--brand);
  margin:.85rem auto 0;
}
.sec-head p{margin-top:1.05rem;color:var(--muted);font-size:1.02rem;}
.sec-head .reg{color:var(--brand);font-size:.62em;vertical-align:super;font-weight:700;}
.sec-head p.nowrap-lead{white-space:nowrap;max-width:none;}
@media (max-width:760px){ .sec-head p.nowrap-lead{white-space:normal;} }

.section{padding:84px 0;}
.section--alt{background:var(--surface-alt);}

/* ============================================================
   HEADER
   ============================================================ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;align-items:center;gap:32px;
  height:84px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;letter-spacing:.04em;font-size:1.35rem;}
.brand .brand-logo{height:54px;width:auto;display:block;}
.brand .mark{width:38px;height:38px;flex:0 0 auto;object-fit:contain;}
.brand .brand-txt{display:flex;flex-direction:column;line-height:1;}
.brand .brand-txt small{font-size:.5rem;font-weight:600;letter-spacing:.34em;color:var(--brand);margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:auto;}
.nav-links a{font-size:.96rem;font-weight:500;color:var(--ink-soft);position:relative;padding:6px 0;}
.nav-links a:hover{color:var(--brand);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);border-radius:2px;
}
.nav-links a.btn-primary{color:#fff;}
.nav-links a.btn-primary:hover{color:#fff;}
.nav .btn{margin-left:8px;}
.nav-cta-mobile{display:none;}
.nav-toggle{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:44px;height:44px;align-items:center;justify-content:center;margin-left:auto;}
.nav-toggle svg{width:22px;height:22px;color:var(--ink);}

/* ============================================================
   HERO
   ============================================================ */
.hero{position:relative;overflow:hidden;background:
   linear-gradient(120deg,#f3f3f4 0%,#eff0f1 60%,#eaeaec 100%);}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,43fr) minmax(0,57fr);
  gap:16px;align-items:center;
  padding-top:48px;padding-bottom:70px;
  padding-right:0;
  padding-left:max(28px, calc((100vw - 1180px)/2 + 28px));
}
.eyebrow{
  color:var(--brand);font-weight:700;text-transform:uppercase;
  letter-spacing:.13em;font-size:.78rem;
}
.hero h1{
  font-size:clamp(2rem,2.95vw,2.85rem);
  line-height:1.06;font-weight:800;letter-spacing:-.025em;
  margin:.5rem 0 0;max-width:12.5em;
}
.hero .lead{margin-top:1.25rem;color:var(--muted);font-size:1.05rem;max-width:40ch;}
.hero-cta{display:flex;gap:10px;margin-top:1.7rem;flex-wrap:wrap;}

/* Hero dashboard visual (image de reference, debordant a droite, fondu grave dans le PNG) */
.hero-visual{position:relative;min-height:auto;display:flex;align-items:center;justify-content:flex-end;}
.hero-img{
  position:relative;z-index:1;
  width:100%;height:auto;display:block;
}

/* ============================================================
   STATS
   ============================================================ */
.stats{margin-top:-76px;position:relative;z-index:5;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-md);padding:24px 20px;
  display:flex;flex-direction:row;align-items:center;justify-content:flex-start;gap:16px;
}
.stat .ic{width:46px;height:46px;color:var(--brand);display:grid;place-items:center;flex:0 0 auto;}
.stat .ic svg{width:34px;height:34px;}
.stat .txt{text-align:left;}
.stat .num{font-size:2rem;font-weight:800;letter-spacing:-.02em;line-height:1.05;}
.stat .lbl{color:var(--muted);font-size:.95rem;margin-top:3px;}
.stat .since{font-size:.92rem;color:var(--muted);font-weight:600;margin-bottom:2px;}
.stat .num-underline{position:relative;}
.stat .num-underline::after{content:"";display:block;width:30px;height:3px;border-radius:3px;background:var(--brand);margin-top:7px;}

/* ============================================================
   QUI SOMMES-NOUS (ajout depuis le brief de contenu)
   ============================================================ */
.about-row{
  display:grid;grid-template-columns:.8fr 1.2fr;gap:40px;align-items:center;
  margin-top:54px;
}
.about-row:first-of-type{margin-top:46px;}
.about-row.reverse{grid-template-columns:1.2fr .8fr;}
.about-row.reverse .about-label{order:2;}
.about-row.reverse .about-card{order:1;}
.about-label .eyebrow{display:block;}
.about-label h3{font-size:clamp(1.5rem,2.2vw,1.95rem);font-weight:700;letter-spacing:-.02em;margin-top:.5rem;}
.about-label .rule{width:46px;height:3px;border-radius:3px;background:var(--brand);margin-top:1rem;}
.about-card{
  background:var(--surface-alt);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px 32px;
  font-size:1.06rem;color:var(--ink-soft);line-height:1.7;
}
.about-card strong{color:var(--ink);font-weight:700;}
.about-card .brand-em{color:var(--brand);font-weight:700;}

/* ============================================================
   FEATURE CARDS
   ============================================================ */
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:48px;}
.cards-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.card{
  position:relative;
  background:var(--surface-alt);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:28px 26px;
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
/* sur les sections grises, les cartes repassent en blanc pour garder le contraste */
.section--alt .card{background:#fff;}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#dcdcdf;}
.card .badge{
  width:62px;height:62px;border-radius:50%;background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);margin-bottom:20px;
}
.card .badge svg{width:30px;height:30px;}
.card h3{font-size:1.2rem;font-weight:700;}
.card p{color:var(--muted);margin-top:.5rem;font-size:.97rem;}
.card .chevron{position:absolute;right:22px;bottom:20px;color:var(--brand);width:22px;height:22px;opacity:.85;}
.tech-chips{list-style:none;margin:16px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:8px;}
.tech-chips li{
  font-size:.8rem;font-weight:600;color:var(--ink-soft);
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:6px 12px;line-height:1;transition:border-color .18s ease, color .18s ease, background .18s ease;
}
.tech-chips li:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}

/* Un collectif d'experts : cartes centrées */
#carrieres .cards-3 .card{display:flex;flex-direction:column;align-items:center;text-align:center;}
#carrieres .cards-3 .tech-chips{justify-content:center;}
#carrieres .card .badge{background:#fff;box-shadow:var(--shadow-sm);}
#pourquoi .card .badge{background:var(--surface-alt);}
.card--center{display:flex;flex-direction:column;justify-content:center;}
.card--center h3{font-size:1.45rem;}
.card-note{display:block;margin-top:12px;color:var(--brand);font-weight:600;font-size:.95rem;}

/* cartes-liens (Nos offres → page détaillée) */
.offer-link{text-decoration:none;color:inherit;cursor:pointer;}
.offer-link h3{color:var(--ink);}

/* Nos offres : icônes centrées et agrandies */
#expertises .cards-3 .card{display:flex;flex-direction:column;align-items:center;text-align:center;}
#expertises .cards-3 .card .badge{width:84px;height:84px;margin-bottom:22px;}
#expertises .cards-3 .card .badge svg{width:44px;height:44px;}
#expertises .cards-3 .card p{margin-top:.6rem;}

/* Nos offres : style icônes en cercles concentriques */
#expertises .cards-3 .card .badge-rings{
  width:92px;height:92px;background:transparent;border-radius:0;margin-bottom:20px;
}
#expertises .cards-3 .card .badge-rings svg{width:92px;height:92px;}

/* horizontal card variant (Pourquoi / méthode) */
.card-h{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start;}
.card-h .badge{margin-bottom:0;flex:0 0 auto;}
.card-h h3{font-size:1.12rem;}
.card-h p{font-size:.93rem;margin-top:.35rem;}

/* Pourquoi section split */
.why-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:54px;align-items:start;}
.why-intro{align-self:center;}
.why-intro h2{font-size:clamp(1.8rem,2.6vw,2.25rem);font-weight:700;letter-spacing:-.02em;}
.why-intro .rule{width:54px;height:3px;border-radius:3px;background:var(--brand);margin:1rem 0 1.4rem;}
.why-intro p{color:var(--muted);font-size:1.04rem;max-width:34ch;}

/* méthode (conservé, non utilisé) */
.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:48px;}
.method-card{
  position:relative;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);
  padding:30px 30px;transition:transform .2s ease, box-shadow .2s ease;
}
.method-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.method-card h3{font-size:1.25rem;font-weight:700;}
.method-card p{color:var(--muted);margin-top:.4rem;font-size:.95rem;}
.method-card .chevron{position:absolute;right:22px;bottom:20px;color:var(--brand);width:22px;height:22px;}
.rings{width:88px;height:88px;flex:0 0 auto;}
.center-cta{display:flex;justify-content:center;margin-top:40px;}

/* ============================================================
   NOS CLIENTS — carrousel défilant de cartes flip
   ============================================================ */
.clients-marquee{
  margin-top:54px;
  -webkit-mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image:linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  overflow:hidden;
}
.clients-track{
  display:flex;gap:26px;width:max-content;padding:14px 4px;
  animation:clientsScroll 60s linear infinite;
}
.clients-marquee:hover .clients-track,
.clients-track.paused{animation-play-state:paused;}
@keyframes clientsScroll{
  from{transform:translateX(0);}
  to{transform:translateX(-50%);}
}
@media (prefers-reduced-motion: reduce){
  .clients-track{animation:none;}
}
.client-card{
  flex:0 0 auto;width:218px;height:172px;
  background:transparent;border:0;padding:0;cursor:pointer;
  perspective:900px;
}
.client-inner{
  position:relative;width:100%;height:100%;display:block;
  transition:transform .6s cubic-bezier(.2,.7,.2,1.05);
  transform-style:preserve-3d;
}
.client-card.is-flipped .client-inner{transform:rotateY(180deg);}
.client-face{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:14px;
  -webkit-backface-visibility:hidden;backface-visibility:hidden;
  overflow:hidden;
}
.client-front{
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-sm);
  padding:22px;transition:box-shadow .2s ease, transform .2s ease;
}
.client-card:hover .client-front{box-shadow:var(--shadow-md);}
.client-front img{max-width:100%;max-height:96px;width:auto;height:auto;object-fit:contain;}
.client-front .flip-cue{
  position:absolute;right:10px;bottom:9px;width:22px;height:22px;border-radius:50%;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;
}
.client-front .flip-cue svg{width:13px;height:13px;}
.client-back{
  background:#7F7F7F;color:#fff;
  transform:rotateY(180deg);
  flex-direction:column;align-items:flex-start;justify-content:center;
  padding:20px 22px;text-align:left;gap:7px;
}
.client-back .ct-name{font-weight:700;font-size:1.06rem;letter-spacing:-.01em;}
.client-back .ct-type{font-size:.9rem;line-height:1.4;color:rgba(255,255,255,.92);}
.client-back .ct-tag{
  margin-top:2px;font-size:.7rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  background:rgba(255,255,255,.18);padding:4px 9px;border-radius:999px;align-self:flex-start;
}
/* liste à puces (clients renseignés) */
.client-back .ct-list{list-style:none;margin:7px 0 0;padding:0;display:flex;flex-direction:column;gap:7px;width:100%;}
.client-back .ct-list li{position:relative;padding-left:17px;font-size:.8rem;line-height:1.3;color:#fff;}
.client-back .ct-list li::before{
  content:"";position:absolute;left:1px;top:.32em;width:6px;height:6px;
  border-right:2px solid rgba(255,255,255,.95);border-top:2px solid rgba(255,255,255,.95);
  transform:rotate(45deg);
}
.client-back .ct-name{font-weight:700;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.78);}
/* champs éditables */
.client-back .ct-type[contenteditable],
.client-back .ct-tag[contenteditable]{outline:none;border-radius:6px;}
.client-back .ct-type[contenteditable]:focus{box-shadow:0 0 0 2px rgba(255,255,255,.45);padding:1px 4px;margin:-1px -4px;}
.client-back .ct-tag[contenteditable]:focus{box-shadow:0 0 0 2px rgba(255,255,255,.45);}
.client-back .ct-type:empty::before,
.client-back .ct-tag:empty::before{content:attr(data-ph);color:rgba(255,255,255,.6);font-weight:500;}
.client-back .ct-tag:empty::before{text-transform:none;letter-spacing:normal;}
/* carte à compléter : verso plus sobre */
.client-card.is-todo .client-back{
  background:#7F7F7F;
  border:1px dashed rgba(255,255,255,.28);
}
.client-card.is-todo .client-back .ct-name{color:#fff;}
.clients-hint{
  text-align:center;color:var(--muted);font-size:.9rem;margin-top:26px;
  display:flex;align-items:center;justify-content:center;gap:8px;position:relative;z-index:1;
}

.net-bg{position:relative;overflow:hidden;}
.net-bg::before,.net-bg::after{
  content:"";position:absolute;width:340px;height:340px;
  background:radial-gradient(circle, rgba(225,36,28,.06) 1px, transparent 1.4px) 0 0/22px 22px;
  opacity:.7;z-index:0;
}
.net-bg::before{top:30px;left:-90px;}
.net-bg::after{bottom:20px;right:-90px;}
.net-bg .container{position:relative;z-index:1;}

/* ============================================================
   CTA BANNER + FOOTER
   ============================================================ */
.footer-wrap{background:var(--footer);position:relative;}
.cta-banner{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-lg);
  display:grid;grid-template-columns:.85fr 1.15fr;gap:30px;align-items:center;
  padding:34px 40px;
  transform:translateY(-58px);margin-bottom:-30px;
}
.cta-illus{position:relative;height:150px;display:grid;place-items:center;}
.cta-illus svg{width:100%;height:100%;}
.cta-copy h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:700;letter-spacing:-.02em;line-height:1.15;}
.cta-copy .btn{margin-top:1.4rem;}

.footer{padding:30px 0 0;color:#cfd0d3;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:34px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer .brand{color:#fff;}
.footer-logo{height:62px;width:auto;display:block;}
.footer .brand small{color:#ff6a62;}
.footer-about p{margin-top:18px;font-size:.9rem;color:#a9abb0;line-height:1.65;max-width:30ch;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:10px;font-size:.88rem;color:#bcbec2;}
.footer-contact span{display:flex;gap:10px;align-items:flex-start;}
.footer-contact svg{width:16px;height:16px;color:var(--brand);flex:0 0 auto;margin-top:2px;}
.footer-col h5{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:#fff;font-weight:700;margin-bottom:16px;}
.footer-col a{display:block;font-size:.9rem;color:#a9abb0;margin-bottom:11px;}
.footer-col a:hover{color:#fff;}
.social{display:flex;gap:12px;margin-top:4px;}
.social a{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.08);display:grid;place-items:center;color:#fff;transition:background .2s ease;}
.social a:hover{background:var(--brand);}
.social svg{width:18px;height:18px;}
.footer-col:has(.social){text-align:center;}
.footer-col:has(.social) .social{justify-content:center;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding:20px 0 26px;font-size:.85rem;color:#8c8e93;
}
.footer-bottom .links{display:flex;gap:26px;}
.footer-bottom a:hover{color:#fff;}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:30px;padding:54px 28px 70px;}
  .hero .lead{max-width:46ch;}
  .hero-visual{min-height:auto;justify-content:center;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .why-grid{grid-template-columns:1fr;gap:30px;}
  .cards-2x2{grid-template-columns:1fr;}
  .method-grid{grid-template-columns:1fr;}
  .cta-banner{grid-template-columns:1fr;text-align:center;}
  .cta-copy .btn{margin-inline:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-about{grid-column:1/-1;}
}
@media (max-width:1000px){
  .nav-links{
    position:absolute;top:84px;left:0;right:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    padding:10px var(--gutter) 18px;box-shadow:var(--shadow-md);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:13px 0;width:100%;border-bottom:1px solid var(--line);}
  .nav-links .btn{margin:12px 0 0;width:100%;justify-content:center;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-cta-mobile{display:inline-flex;}
}
@media (max-width:760px){
  .about-row,.about-row.reverse{grid-template-columns:1fr;gap:18px;}
  .about-row.reverse .about-label{order:0;}
  .about-row.reverse .about-card{order:0;}
  .cards-3{grid-template-columns:1fr;}
  .section{padding:60px 0;}
}
@media (max-width:480px){
  .stats-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{justify-content:center;text-align:center;}
}