/* ══════════════════════════════════════════
   Agence B2S – main.css
══════════════════════════════════════════ */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --ink:#0B1220;--blue:#1559A8;--blue2:#1E78D4;--blue3:#4FA3E8;
  --muted:#6B7A94;--border:#E2E8F0;--bg:#F7F9FC;--white:#fff;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,sans-serif;color:var(--ink);background:var(--white);overflow-x:hidden;line-height:1.6}

/* ── LANDING ── */
#landing{
  position:fixed;inset:0;z-index:300;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  transition:opacity .9s ease,visibility .9s ease;
  background:#060D1A;
}
#landing.gone{opacity:0;visibility:hidden;pointer-events:none}
.l-img{
  position:absolute;inset:0;
  background:linear-gradient(135deg,#0B1A30 0%,#1A3A60 100%) center/cover no-repeat;
  transition:transform 14s ease;
}
#landing:not(.gone) .l-img{transform:scale(1.04)}
.l-overlay{
  position:absolute;inset:0;
  background:linear-gradient(to bottom,rgba(6,13,26,.5) 0%,rgba(6,13,26,.72) 60%,rgba(6,13,26,.9) 100%);
}
.l-content{
  position:relative;z-index:2;text-align:center;padding:2rem;
  animation:up 1s ease .3s both;
}
@keyframes up{from{opacity:0;transform:translateY(28px)}to{opacity:1;transform:translateY(0)}}
.l-title{
  font-size:clamp(1.5rem,4.5vw,2.8rem);font-weight:300;
  letter-spacing:.1em;color:#fff;text-transform:uppercase;
  margin-bottom:.45rem;line-height:1.15;
}
.l-title strong{font-weight:700}
.l-baseline{
  font-size:clamp(.72rem,1.4vw,.9rem);
  color:rgba(255,255,255,.5);letter-spacing:.2em;
  text-transform:uppercase;font-weight:300;margin-bottom:3.5rem;
}
.l-cta{
  display:inline-flex;flex-direction:column;align-items:center;gap:16px;
  cursor:pointer;border:none;background:none;
  animation:up 1s ease 1s both;
}
.l-cta-txt{
  font-size:10.5px;letter-spacing:.3em;text-transform:uppercase;
  color:rgba(255,255,255,.5);font-weight:400;
  border:1px solid rgba(255,255,255,.2);padding:10px 24px;border-radius:2px;
  transition:all .3s;
}
.l-cta:hover .l-cta-txt{color:#fff;border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.06)}
.l-arrow{
  width:1px;height:46px;
  background:linear-gradient(to bottom,rgba(255,255,255,.6),transparent);
  animation:pb 2s ease-in-out infinite;
}
@keyframes pb{0%,100%{opacity:.5;transform:scaleY(1)}50%{opacity:1;transform:scaleY(1.2)}}

/* ── SITE ── */
#main{opacity:0;transition:opacity .7s ease .15s;min-height:100vh}
#main.show{opacity:1}

/* NAV */
nav{
  position:sticky;top:0;z-index:100;height:60px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 5vw;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border);
}
.n-brand{display:flex;flex-direction:column;cursor:pointer;text-decoration:none;gap:1px}
.n-brand-name{font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink);line-height:1}
.n-brand-sub{font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:400}
.n-links{display:flex;align-items:center;gap:2rem;list-style:none}
.n-links a{
  font-size:11px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);text-decoration:none;cursor:pointer;transition:color .2s;
  position:relative;padding-bottom:2px;
}
.n-links a::after{content:'';position:absolute;bottom:0;left:0;width:0;height:1.5px;background:var(--blue2);transition:width .25s}
.n-links a:hover{color:var(--ink)}
.n-links a:hover::after{width:100%}
.n-cta{background:var(--blue)!important;color:#fff!important;padding:8px 18px!important;border-radius:2px!important;font-weight:600!important}
.n-cta::after{display:none!important}
.n-cta:hover{background:var(--blue2)!important;color:#fff!important}
.burger{display:none;flex-direction:column;gap:4px;border:none;background:none;cursor:pointer;padding:4px}
.burger span{width:20px;height:1.5px;background:var(--ink);display:block}
.mob-nav{display:none;flex-direction:column;position:absolute;top:60px;left:0;right:0;background:#fff;border-bottom:1px solid var(--border);list-style:none;padding:1.2rem 5vw;gap:1.2rem}
.mob-nav.open{display:flex}
.mob-nav a{font-size:12.5px;font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);cursor:pointer;text-decoration:none}

/* HERO */
.hero{
  min-height:88vh;display:flex;align-items:center;
  position:relative;overflow:hidden;
  background:url('https://agence-b2s.fr/wp-content/uploads/2020/10/cropped-data.jpg') center/cover no-repeat fixed;
}
.hero-ov{position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,13,26,.84) 0%,rgba(6,13,26,.6) 60%,rgba(21,89,168,.22) 100%)}
.hero-inner{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:5rem 5vw;width:100%}
.kicker{
  font-size:10px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--blue3);font-weight:500;margin-bottom:1.2rem;
  display:flex;align-items:center;gap:10px;
}
.kicker::before{content:'';width:26px;height:1px;background:var(--blue3);flex-shrink:0}
.hero h1{font-size:clamp(2rem,4.8vw,3.8rem);font-weight:300;color:#fff;line-height:1.12;margin-bottom:1.3rem;letter-spacing:-.01em;max-width:660px}
.hero h1 strong{font-weight:700}
.hero-sub{font-size:.97rem;color:rgba(255,255,255,.58);line-height:1.78;max-width:500px;margin-bottom:2.4rem;font-weight:300}
.hero-btns{display:flex;gap:1rem;flex-wrap:wrap}
.btn-solid{
  background:var(--blue2);color:#fff;padding:13px 28px;border-radius:2px;
  font-size:11.5px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  border:none;cursor:pointer;font-family:'Inter',sans-serif;
  transition:background .2s;text-decoration:none;display:inline-block;
}
.btn-solid:hover{background:var(--blue);color:#fff}
.btn-ghost{
  border:1px solid rgba(255,255,255,.32);color:rgba(255,255,255,.82);
  padding:13px 28px;border-radius:2px;
  font-size:11.5px;font-weight:500;letter-spacing:.14em;text-transform:uppercase;
  background:none;cursor:pointer;font-family:'Inter',sans-serif;
  transition:all .2s;text-decoration:none;display:inline-block;
}
.btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.07)}

/* STATS */
.stats{background:var(--ink);padding:0 5vw}
.stats-row{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr)}
.stat-cell{padding:2rem 1rem;text-align:center;border-right:1px solid rgba(255,255,255,.06)}
.stat-cell:last-child{border-right:none}
.s-num{font-size:2.1rem;font-weight:700;color:#fff;letter-spacing:-.02em;line-height:1}
.s-lbl{font-size:9px;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.32);margin-top:6px}

/* SECTIONS */
.sec{padding:5.5rem 5vw}
.sec-inner{max-width:1200px;margin:0 auto}
.sec-alt{background:var(--bg)}
.eyebrow{
  font-size:9.5px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--blue2);font-weight:600;margin-bottom:.85rem;
  display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:'';width:18px;height:1px;background:var(--blue2);flex-shrink:0}
.sec-h{font-size:clamp(1.65rem,2.6vw,2.5rem);font-weight:300;color:var(--ink);line-height:1.2;margin-bottom:.9rem;letter-spacing:-.01em}
.sec-h strong{font-weight:700}
.sec-p{font-size:.92rem;color:var(--muted);line-height:1.8;max-width:560px}

/* RUBRIQUES DESKTOP */
.rub-top{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;margin-bottom:3rem}
.rub-panel{background:var(--ink);border-radius:3px;padding:2.2rem;position:relative;overflow:hidden}
.rub-panel::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--blue3))}
.rub-panel-grid{position:absolute;inset:0;opacity:.04;background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);background-size:28px 28px}
.rub-items{display:flex;flex-direction:column;gap:.75rem;position:relative;z-index:1}
.rub-item{display:flex;align-items:flex-start;gap:11px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:3px;padding:.8rem .95rem}
.rub-dot{width:6px;height:6px;border-radius:50%;background:var(--blue3);flex-shrink:0;margin-top:6px}
.rub-item-txt{font-size:.82rem;color:rgba(255,255,255,.76);line-height:1.55}
.rub-item-txt strong{color:#fff;font-weight:600}
.det-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.1rem}
.det-c{border:1px solid var(--border);border-radius:3px;padding:1.5rem;transition:border-color .25s,box-shadow .25s}
.det-c:hover{border-color:var(--blue3);box-shadow:0 4px 18px rgba(30,120,212,.08)}
.det-num{font-size:2.2rem;font-weight:700;color:rgba(30,120,212,.1);line-height:1;margin-bottom:.45rem;letter-spacing:-.03em}
.det-title{font-size:.88rem;font-weight:700;color:var(--ink);margin-bottom:.32rem}
.det-desc{font-size:.8rem;color:var(--muted);line-height:1.65}
.det-ul{margin-top:.55rem;list-style:none;padding:0}
.det-ul li{font-size:.76rem;color:var(--muted);padding:2px 0 2px 11px;position:relative}
.det-ul li::before{content:'›';position:absolute;left:0;color:var(--blue2);font-weight:600}

/* AUDIT */
.audit-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.3rem;margin-top:3rem}
.audit-card{border:1px solid var(--border);border-radius:3px;padding:1.8rem;position:relative;overflow:hidden;transition:border-color .25s,box-shadow .25s}
.audit-card::after{content:'';position:absolute;bottom:0;left:0;right:0;height:3px;background:var(--blue2);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.audit-card:hover{border-color:var(--blue2);box-shadow:0 4px 22px rgba(30,120,212,.09)}
.audit-card:hover::after{transform:scaleX(1)}
.audit-ico{font-size:26px;margin-bottom:1rem}
.audit-t{font-size:.95rem;font-weight:700;color:var(--ink);margin-bottom:.45rem}
.audit-d{font-size:.83rem;color:var(--muted);line-height:1.7}
.audit-tags{display:flex;flex-wrap:wrap;gap:5px;margin-top:.9rem}
.atag{font-size:8.5px;letter-spacing:.1em;text-transform:uppercase;background:var(--bg);color:var(--blue);padding:3px 9px;border-radius:2px;font-weight:500;border:1px solid var(--border)}

/* ACCORDÉON MOBILE */
.accordion{display:none}
.acc-item{border-bottom:1px solid var(--border)}
.acc-item:first-child{border-top:1px solid var(--border)}
.acc-trigger{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:1.3rem 0;background:none;border:none;cursor:pointer;
  font-family:'Inter',sans-serif;text-align:left;gap:1rem;
}
.acc-trigger-left{display:flex;align-items:center;gap:.85rem}
.acc-trigger-ico{width:38px;height:38px;background:var(--bg);border:1px solid var(--border);border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:16px;flex-shrink:0}
.acc-trigger-title{font-size:.95rem;font-weight:700;color:var(--ink);display:block;line-height:1.2}
.acc-trigger-sub{font-size:.75rem;color:var(--blue2);font-weight:500;display:block;margin-top:2px}
.acc-chevron{width:28px;height:28px;flex-shrink:0;border:1px solid var(--border);border-radius:50%;display:flex;align-items:center;justify-content:center;transition:transform .3s,border-color .3s}
.acc-chevron svg{width:12px;height:12px;stroke:var(--muted);stroke-width:2;fill:none;transition:stroke .3s}
.acc-item.open .acc-chevron{transform:rotate(180deg);border-color:var(--blue2)}
.acc-item.open .acc-chevron svg{stroke:var(--blue2)}
.acc-item.open .acc-trigger-sub{display:none}
.acc-body{max-height:0;overflow:hidden;transition:max-height .4s ease}
.acc-body-inner{padding-bottom:1.4rem;display:flex;flex-direction:column;gap:1rem}
.acc-intro{font-size:.85rem;color:var(--muted);line-height:1.75}
.acc-panel{background:var(--ink);border-radius:3px;padding:1.3rem;position:relative;overflow:hidden}
.acc-panel::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--blue3))}
.acc-panel-grid{position:absolute;inset:0;opacity:.04;background-image:linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);background-size:24px 24px}
.acc-rub-items{display:flex;flex-direction:column;gap:.6rem;position:relative;z-index:1}
.acc-rub-item{display:flex;align-items:flex-start;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);border-radius:3px;padding:.7rem .9rem}
.acc-dot{width:5px;height:5px;border-radius:50%;background:var(--blue3);flex-shrink:0;margin-top:6px}
.acc-item-txt{font-size:.8rem;color:rgba(255,255,255,.76);line-height:1.5}
.acc-item-txt strong{color:#fff;font-weight:600}
.acc-details{display:flex;flex-direction:column;gap:.8rem}
.acc-det{border:1px solid var(--border);border-radius:3px;padding:1.1rem}
.acc-det-title{font-size:.86rem;font-weight:700;color:var(--ink);margin-bottom:.3rem}
.acc-det-ul{margin-top:.45rem;list-style:none;padding:0}
.acc-det-ul li{font-size:.74rem;color:var(--muted);padding:2px 0 2px 11px;position:relative}
.acc-det-ul li::before{content:'›';position:absolute;left:0;color:var(--blue2);font-weight:600}
.acc-audit-cards{display:flex;flex-direction:column;gap:.8rem}
.acc-audit-card{border:1px solid var(--border);border-radius:3px;padding:1.1rem}
.acc-audit-ico{font-size:20px;margin-bottom:.6rem}
.acc-audit-t{font-size:.86rem;font-weight:700;color:var(--ink);margin-bottom:.3rem}
.acc-audit-d{font-size:.78rem;color:var(--muted);line-height:1.6}
.acc-audit-tags{display:flex;flex-wrap:wrap;gap:4px;margin-top:.7rem}
.acc-cta-wrap{padding-top:.3rem}
.acc-cta{display:inline-block;background:var(--blue2);color:#fff;padding:11px 22px;border-radius:2px;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;border:none;cursor:pointer;font-family:'Inter',sans-serif;text-decoration:none}

/* CONTACT */
.contact-sec{background:var(--ink);padding:5.5rem 5vw}
.contact-in{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr 1fr;gap:5rem;align-items:start}
.contact-sec .eyebrow{color:var(--blue3)}
.contact-sec .eyebrow::before{background:var(--blue3)}
.contact-sec .sec-h{color:#fff}
.contact-sec .sec-p{color:rgba(255,255,255,.42);max-width:100%}
.c-list{display:flex;flex-direction:column;gap:1rem;margin-top:2rem}
.c-item{display:flex;align-items:center;gap:.85rem;padding-bottom:1rem;border-bottom:1px solid rgba(255,255,255,.06)}
.c-item:last-child{border-bottom:none;padding-bottom:0}
.c-ico{width:40px;height:40px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:3px;display:flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0}
.c-lbl{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.3);margin-bottom:2px}
.c-val{font-size:.9rem;color:#fff;font-weight:500}
.c-form{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:3px;padding:2rem}
.fg{margin-bottom:.95rem}
.fg2{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.flbl{display:block;font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.35);margin-bottom:6px}
.finp,.fta,.fsel{
  width:100%;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:2px;padding:10px 14px;color:#fff;font-family:'Inter',sans-serif;
  font-size:.84rem;outline:none;transition:border-color .2s;
}
.finp::placeholder,.fta::placeholder{color:rgba(255,255,255,.25)}
.finp:focus,.fta:focus,.fsel:focus{border-color:var(--blue2)}
.fta{height:90px;resize:vertical}
.fsel option{background:#0B1220;color:#fff}
.fsubmit{
  width:100%;background:var(--blue2);color:#fff;border:none;
  padding:12px;border-radius:2px;font-family:'Inter',sans-serif;
  font-size:10.5px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;
  cursor:pointer;margin-top:.35rem;transition:background .2s;
}
.fsubmit:hover{background:var(--blue)}
.msg-ok{color:#4ade80;font-weight:500}
.msg-err{color:#f87171;font-weight:500}

/* FOOTER */
footer{background:#050D1A;padding:1.4rem 5vw;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.6rem}
.fcopy{font-size:10px;color:rgba(255,255,255,.22);letter-spacing:.05em}
.flinks{display:flex;gap:1.2rem}
.flinks a{font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.22);text-decoration:none;cursor:pointer;transition:color .2s}
.flinks a:hover{color:rgba(255,255,255,.7)}
/* menu WP footer */
footer ul{display:flex;gap:1.2rem;list-style:none}
footer ul li a{font-size:9px;letter-spacing:.15em;text-transform:uppercase;color:rgba(255,255,255,.22);text-decoration:none;transition:color .2s}
footer ul li a:hover{color:rgba(255,255,255,.7)}

/* ── RESPONSIVE ── */
@media(max-width:840px){
  .n-links{display:none}
  .burger{display:flex}
  .hero{background-attachment:scroll}
  .hero h1{font-size:1.9rem}
  .stats-row{grid-template-columns:1fr 1fr}
  .stat-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.06)}
  .stat-cell:nth-child(odd){border-right:1px solid rgba(255,255,255,.06)}
  .desktop-rubrique{display:none}
  .accordion{display:block}
  .contact-in{grid-template-columns:1fr}
  .fg2{grid-template-columns:1fr}
  .sec{padding:3.5rem 5vw}
  .contact-sec{padding:3.5rem 5vw}
}
@media(max-width:500px){
  .l-title{font-size:1.45rem}
  footer{flex-direction:column;text-align:center}
}