/* ===================================================================
   Venticalor — site vitrine · identité de marque
   =================================================================== */
:root{
  --purple:#782B84;
  --purple-dark:#43237E;
  --purple-vivid:#8B369A;
  --purple-light:#834FC8;
  --green:#65BC7B;
  --green-dark:#4fa866;
  --ink:#22253D;
  --slate:#4F578D;
  --mist:#A6ABCD;
  --line:#E6E8F2;
  --bg-soft:#F4F5FA;
  --white:#fff;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --display:'Jost',var(--font);
}
*{box-sizing:border-box; margin:0; padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font); color:var(--ink); background:var(--white); line-height:1.65; -webkit-font-smoothing:antialiased}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
.container{width:min(1180px,92%); margin:0 auto}

/* ---------- Typographie utilitaire ---------- */
.eyebrow{text-transform:uppercase; letter-spacing:.22em; font-size:.72rem; font-weight:600; color:var(--purple); margin-bottom:.9rem}
.eyebrow--light{color:#C9BBE8}
.section-title{font-family:var(--display); font-weight:500; font-size:clamp(1.7rem,3.4vw,2.6rem); letter-spacing:-.01em; line-height:1.15; color:var(--ink)}
.section--dark .section-title,.hero .section-title{color:#fff}
.section-sub{color:var(--slate); font-size:1.05rem; max-width:640px; margin-top:1rem}

/* ---------- Boutons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.5rem; background:var(--green); color:#fff;
  padding:.85rem 1.9rem; border-radius:999px; font-weight:600; font-size:.95rem;
  border:1px solid transparent; cursor:pointer; transition:.2s; box-shadow:0 8px 20px rgba(101,188,123,.28);
}
.btn:hover{background:var(--green-dark); transform:translateY(-2px); box-shadow:0 12px 28px rgba(101,188,123,.4)}
.btn--sm{padding:.5rem 1.1rem; font-size:.82rem; box-shadow:none}
.btn--ghost-light{background:transparent; border-color:rgba(255,255,255,.45); color:#fff; box-shadow:none}
.btn--ghost-light:hover{background:rgba(255,255,255,.12); transform:translateY(-2px)}

/* ---------- Header ---------- */
.site-header{
  position:fixed; top:0; left:0; right:0; z-index:100;
  padding:.5rem 0; transition:.3s;
  background:linear-gradient(180deg,rgba(46,24,90,.55),rgba(46,24,90,0));
}
.site-header.scrolled{
  background:rgba(52,28,98,.92); backdrop-filter:blur(12px);
  box-shadow:0 6px 24px rgba(30,15,60,.28); padding:.2rem 0;
}
.header-inner{display:flex; align-items:center; justify-content:space-between; gap:1.5rem; padding:.7rem 0}
.brand img{height:46px; width:auto; transition:.3s}
.site-header.scrolled .brand img{height:40px}
.nav{display:flex; gap:1.7rem; margin-left:auto}
.nav a{color:rgba(255,255,255,.88); font-size:.92rem; font-weight:500; position:relative; padding:.2rem 0}
.nav a::after{content:''; position:absolute; left:0; bottom:-2px; width:0; height:2px; background:var(--green); transition:.25s}
.nav a:hover{color:#fff}
.nav a:hover::after{width:100%}
.header-cta{display:flex; align-items:center; gap:1rem}
.header-phone{color:#fff; font-weight:600; font-size:.92rem; opacity:.9}
.header-phone:hover{color:var(--green)}
.nav-toggle{display:none; background:none; border:none; color:#fff; font-size:1.5rem; cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative; padding:9rem 0 3.5rem; overflow:hidden; color:#fff; isolation:isolate;
  background:linear-gradient(135deg,#2d1658 0%, var(--purple-dark) 48%, var(--purple) 100%)}
.hero-overlay{
  position:absolute; inset:0; z-index:-1;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(139,54,154,.55), transparent 60%),
    radial-gradient(700px 500px at 0% 110%, rgba(101,188,123,.16), transparent 55%);
}
.hero-watermark{position:absolute; right:-60px; top:40px; width:420px; opacity:.06; z-index:-1; pointer-events:none}
.hero-inner{padding-bottom:3rem; max-width:780px; animation:rise .8s ease both}
.hero-title{font-family:var(--display); font-weight:300; font-size:clamp(2.6rem,6.2vw,4.6rem); line-height:1.05; letter-spacing:-.01em; margin-bottom:1.3rem}
.hero-title span{color:var(--green); font-weight:500}
.hero-lead{font-size:1.2rem; color:rgba(255,255,255,.9); max-width:560px; margin-bottom:2.2rem}
.hero-actions{display:flex; gap:1rem; flex-wrap:wrap}
@keyframes rise{from{opacity:0; transform:translateY(24px)}to{opacity:1; transform:none}}

/* Stats band */
.stats{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px;
  background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.16);
  border-radius:18px; overflow:hidden;
  backdrop-filter:blur(10px); box-shadow:0 20px 50px rgba(20,10,40,.28);
}
.stat{background:rgba(255,255,255,.07); padding:1.7rem 1.2rem; text-align:center; transition:.25s}
.stat:hover{background:rgba(255,255,255,.13)}
.stat-num{font-family:var(--display); font-size:2.4rem; font-weight:500; color:#fff; line-height:1}
.stat-num span{color:var(--green)}
.stat-lab{font-size:.82rem; color:#C9BBE8; margin-top:.5rem; letter-spacing:.02em}

/* ---------- Sections ---------- */
.section{padding:6rem 0}
.section--soft{background:var(--bg-soft)}
.section--dark{background:linear-gradient(135deg,var(--purple-dark),#2c1652); color:#fff}
.section--dark p{color:rgba(255,255,255,.82)}

/* Piliers */
.piliers{display:grid; grid-template-columns:repeat(3,1fr); gap:1.5rem; margin-top:3rem}
.pilier{position:relative; padding:2.2rem 1.8rem; border:1px solid var(--line); border-radius:16px; background:#fff; transition:.25s; overflow:hidden}
.pilier::before{content:''; position:absolute; left:0; top:0; width:4px; height:0; background:linear-gradient(var(--purple),var(--green)); transition:.3s}
.pilier:hover{transform:translateY(-5px); box-shadow:0 18px 40px rgba(67,35,126,.12); border-color:transparent}
.pilier:hover::before{height:100%}
.pilier-n{font-family:var(--display); font-size:2.6rem; font-weight:300; color:var(--purple-light); opacity:.5}
.pilier h3{font-size:1.3rem; font-weight:600; margin:.4rem 0 .7rem}
.pilier p{color:var(--slate); font-size:.98rem}

/* Services grid */
.grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); gap:1.4rem; margin-top:3rem}
.card{background:#fff; padding:2rem 1.7rem; border-radius:16px; border:1px solid var(--line); transition:.25s}
.card:hover{transform:translateY(-6px); box-shadow:0 20px 44px rgba(67,35,126,.14); border-color:transparent}
.card-ico{display:inline-grid; place-items:center; width:52px; height:52px; border-radius:14px; background:linear-gradient(135deg,#F5EDFB,#EAF6ED); color:var(--purple); margin-bottom:1.1rem}
.card-ico svg{width:26px; height:26px}
.card h3{font-size:1.12rem; font-weight:600; margin-bottom:.5rem}
.card p{color:var(--slate); font-size:.95rem}

/* Valeurs */
.valeurs{display:grid; grid-template-columns:repeat(4,1fr); gap:1.4rem; margin-top:3rem}
.valeur{text-align:center; padding:1.8rem 1.2rem; border-radius:16px; transition:.25s}
.valeur:hover{background:var(--bg-soft)}
.valeur-ico{display:inline-grid; place-items:center; width:66px; height:66px; border-radius:50%; background:linear-gradient(135deg,var(--purple),var(--purple-vivid)); color:#fff; margin-bottom:1rem; box-shadow:0 12px 26px rgba(120,43,132,.28)}
.valeur-ico svg{width:30px; height:30px}
.valeur h4{font-size:1.08rem; font-weight:600; margin-bottom:.4rem}
.valeur p{color:var(--slate); font-size:.92rem}

/* Équipe */
.equipe{display:grid; grid-template-columns:.85fr 1.15fr; gap:3.5rem; align-items:center}
.equipe-photo{position:relative}
.equipe-photo::before{content:''; position:absolute; inset:-16px -16px 16px 16px; border-radius:24px; background:linear-gradient(135deg,var(--purple-vivid),var(--green)); z-index:0}
.equipe-photo img{position:relative; z-index:1; border-radius:20px; width:100%; object-fit:cover; box-shadow:0 24px 50px rgba(0,0,0,.35)}
.equipe-monogram{position:relative; z-index:1; border-radius:20px; aspect-ratio:4/5; display:grid; place-items:center;
  background:linear-gradient(150deg,#3a1f70,var(--purple-dark)); box-shadow:0 24px 50px rgba(0,0,0,.35); overflow:hidden}
.equipe-iso{position:absolute; width:150%; max-width:none; opacity:.08; top:-10%; left:-25%}
.equipe-initials{font-family:var(--display); font-weight:300; font-size:5rem; letter-spacing:.08em; color:#fff;
  width:130px; height:130px; border-radius:50%; display:grid; place-items:center;
  background:linear-gradient(135deg,var(--purple-vivid),var(--purple-light)); box-shadow:0 12px 30px rgba(120,43,132,.4)}
.equipe-role{color:var(--green); font-weight:600; margin:.3rem 0 1.2rem; font-size:1.05rem}
.equipe-text .btn{margin-top:1.6rem}

/* Clients */
.clients-sec{padding:4rem 0}
.clients{display:flex; flex-wrap:wrap; align-items:center; justify-content:center; gap:2.5rem 3.5rem; margin-top:2rem}
.client img{height:52px; width:auto; object-fit:contain; filter:grayscale(1); opacity:.55; transition:.3s}
.client:hover img{filter:grayscale(0); opacity:1; transform:scale(1.05)}

/* Contact */
.contact-sec{padding-bottom:7rem}
.contact-card{
  display:grid; grid-template-columns:1.1fr .9fr; gap:3rem; align-items:center;
  background:linear-gradient(135deg,var(--purple-dark),var(--purple)); color:#fff;
  border-radius:26px; padding:3.5rem; box-shadow:0 30px 70px rgba(67,35,126,.3); position:relative; overflow:hidden;
}
.contact-card::after{content:''; position:absolute; right:-80px; bottom:-80px; width:280px; height:280px; border-radius:50%; background:rgba(101,188,123,.18)}
.contact-card p{color:rgba(255,255,255,.86); margin-top:.8rem}
.contact-info{display:flex; flex-direction:column; gap:.9rem; position:relative; z-index:1}
.contact-line{color:#fff; font-weight:500}
.contact-line:hover{color:var(--green)}
.contact-info .btn{margin-top:.6rem; align-self:flex-start}

/* ---------- Footer ---------- */
.site-footer{background:#1b1030; color:rgba(255,255,255,.62); padding:4rem 0 1.5rem; font-size:.92rem}
.footer-grid{display:grid; grid-template-columns:1.6fr 1fr 1fr 1fr; gap:2.5rem}
.footer-brand img{height:70px; margin-bottom:1.1rem}
.footer-brand p{max-width:280px}
.footer-col h4{color:#fff; font-size:.82rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom:1rem; font-weight:600}
.footer-col a{display:block; color:rgba(255,255,255,.62); padding:.25rem 0; transition:.2s}
.footer-col a:hover{color:var(--green)}
.footer-col p{margin-bottom:.7rem}
.footer-bottom{display:flex; justify-content:space-between; flex-wrap:wrap; gap:.6rem; border-top:1px solid rgba(255,255,255,.1); margin-top:3rem; padding-top:1.5rem; font-size:.82rem; color:rgba(255,255,255,.4)}

/* ---------- Responsive ---------- */
@media(max-width:900px){
  .nav{position:fixed; inset:0 0 auto auto; top:0; height:100vh; width:260px; flex-direction:column; gap:1.2rem;
       background:rgba(40,22,78,.98); padding:5rem 2rem; transform:translateX(100%); transition:.3s; margin:0}
  .nav.open{transform:none}
  .nav-toggle{display:block}
  .header-phone{display:none}
  .stats{grid-template-columns:repeat(2,1fr); transform:translateY(30%)}
  .piliers,.valeurs{grid-template-columns:1fr 1fr}
  .equipe{grid-template-columns:1fr; gap:2rem}
  .contact-card{grid-template-columns:1fr; padding:2.5rem}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){
  .piliers,.valeurs,.stats,.footer-grid{grid-template-columns:1fr}
  .section{padding:4rem 0}
}

/* ---------- Réalisations ---------- */
.realisations{display:grid; grid-template-columns:repeat(3,1fr); gap:1.4rem; margin-top:3rem}
.realisation{border:1px solid var(--line); border-radius:16px; padding:1.8rem; background:#fff; transition:.25s; display:flex; flex-direction:column}
.realisation:hover{transform:translateY(-5px); box-shadow:0 18px 40px rgba(67,35,126,.12); border-color:transparent}
.rea-tag{align-self:flex-start; font-size:.72rem; font-weight:700; text-transform:uppercase; letter-spacing:.06em; color:var(--purple); background:#F5EDFB; padding:.35rem .8rem; border-radius:999px}
.realisation h3{font-size:1.12rem; font-weight:600; margin:1rem 0 .5rem}
.realisation p{color:var(--slate); font-size:.95rem; flex:1}
.rea-metric{display:flex; align-items:baseline; gap:.5rem; margin-top:1.2rem; padding-top:1rem; border-top:1px solid var(--line)}
.rea-metric b{font-family:var(--display); font-size:1.7rem; font-weight:500; color:var(--green-dark)}
.rea-metric span{font-size:.82rem; color:var(--mist)}

/* ---------- Contact : split + formulaire ---------- */
.contact-card{align-items:stretch}
.contact-left{display:flex; flex-direction:column; justify-content:center}
.contact-info{display:flex; flex-direction:column; gap:.5rem; margin-top:1.4rem}
.contact-form{display:flex; flex-direction:column; gap:.9rem; position:relative; z-index:1}
.contact-form label{display:flex; flex-direction:column; gap:.35rem; font-size:.82rem; font-weight:600; color:#EAD9F5; letter-spacing:.02em}
.contact-form input,.contact-form textarea{
  font-family:inherit; font-size:.95rem; padding:.75rem .9rem; border-radius:11px;
  border:1px solid rgba(255,255,255,.25); background:rgba(255,255,255,.1); color:#fff; outline:none; transition:.2s;
}
.contact-form input::placeholder,.contact-form textarea::placeholder{color:rgba(255,255,255,.5)}
.contact-form input:focus,.contact-form textarea:focus{border-color:var(--green); background:rgba(255,255,255,.16)}
.contact-form textarea{resize:vertical}
.contact-form .btn{align-self:flex-start; margin-top:.3rem}
.contact-success{display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:.6rem; position:relative; z-index:1; color:#fff}
.cs-check{width:56px; height:56px; border-radius:50%; background:var(--green); color:#fff; display:grid; place-items:center; font-size:1.7rem; font-weight:700; box-shadow:0 10px 26px rgba(101,188,123,.5)}
.contact-success h3{font-size:1.2rem; font-weight:600}
.contact-success p{color:rgba(255,255,255,.85)}

@media(max-width:900px){
  .realisations{grid-template-columns:1fr}
}

/* ---------- Révélation au défilement (activée par JS via body.anim) ---------- */
body.anim .stat, body.anim .pilier, body.anim .grid .card, body.anim .valeur{
  opacity:0; transform:translateY(18px);
  transition:opacity .6s cubic-bezier(.2,.8,.3,1), transform .6s cubic-bezier(.2,.8,.3,1);
}
body.anim .stat.in, body.anim .pilier.in, body.anim .grid .card.in, body.anim .valeur.in{
  opacity:1; transform:none;
}
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{animation-duration:.01ms !important; transition-duration:.01ms !important}
}