/* ===========================================================
   ESCULAB EXPERT — Feuille de style globale
   Charte : Navy #14304d · Vert #2e7d50
   =========================================================== */

:root{
  --navy:#14304d;
  --navy-700:#1b3c5e;
  --navy-900:#0e2438;
  --green:#2e7d50;
  --green-600:#277046;
  --green-100:#e7f1eb;
  --ink:#243240;
  --muted:#5d6b78;
  --line:#e3e9ef;
  --bg:#ffffff;
  --bg-soft:#f4f7f9;
  --bg-softer:#eef3f6;
  --white:#ffffff;
  --radius:14px;
  --shadow-sm:0 1px 3px rgba(20,48,77,.06), 0 1px 2px rgba(20,48,77,.04);
  --shadow:0 10px 30px rgba(20,48,77,.10);
  --maxw:1140px;
  --serif:"Lora", Georgia, "Times New Roman", serif;
  --sans:"Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--green-600);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--navy);}

h1,h2,h3,h4{font-family:var(--serif);color:var(--navy);line-height:1.2;font-weight:600;margin:0 0 .5em;}
h1{font-size:clamp(2rem,4.2vw,3.1rem);letter-spacing:-.01em;}
h2{font-size:clamp(1.6rem,3vw,2.2rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1.1em;}

.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:84px 0;}
.section--soft{background:var(--bg-soft);}
.section--navy{background:var(--navy);color:#dce6ef;}
.section--navy h2,.section--navy h3{color:#fff;}
.center{text-align:center;}
.lead{font-size:1.18rem;color:var(--muted);max-width:760px;}
.center .lead{margin-left:auto;margin-right:auto;}

.eyebrow{
  display:inline-block;font-family:var(--sans);font-weight:700;
  font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--green);margin-bottom:14px;
}
.section--navy .eyebrow{color:#7fd1a3;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--sans);font-weight:600;font-size:1rem;
  padding:13px 26px;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:all .2s ease;
}
.btn--primary{background:var(--green);color:#fff;}
.btn--primary:hover{background:var(--green-600);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow);}
.btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45);}
.btn--ghost:hover{background:#fff;color:var(--navy);}
.btn--outline{background:transparent;color:var(--navy);border-color:var(--navy);}
.btn--outline:hover{background:var(--navy);color:#fff;}
.btn-row{display:flex;gap:14px;flex-wrap:wrap;}
.center .btn-row{justify-content:center;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:78px;}
.brand{display:flex;align-items:center;gap:12px;}
.brand img{height:50px;width:auto;}
.brand .brand-txt{font-family:var(--serif);font-weight:700;color:var(--navy);font-size:1.15rem;line-height:1;}
.brand .brand-txt small{display:block;font-family:var(--sans);font-weight:600;font-size:.62rem;letter-spacing:.16em;color:var(--green);text-transform:uppercase;margin-top:4px;}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none;margin:0;padding:0;}
.nav-links a{
  font-family:var(--sans);font-weight:600;font-size:.96rem;color:var(--navy);
  padding:9px 14px;border-radius:8px;
}
.nav-links a:hover{background:var(--bg-soft);color:var(--navy);}
.nav-links a.active{color:var(--green-600);}
.nav-links .btn{margin-left:8px;padding:10px 20px;}
.nav-links .btn:hover{color:#fff;}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--navy);margin:5px 0;transition:.2s;}

/* ---------- Media / figures ---------- */
.hero-grid{display:grid;grid-template-columns:0.92fr 1.28fr;gap:36px;align-items:center;}
.hero-copy{max-width:600px;}
.hero-actions{margin-top:34px;display:flex;flex-direction:column;gap:18px;}
.hero-actions .btn-row{gap:14px;flex-wrap:wrap;}
.hero-actions .hero-badges{margin-top:0;gap:22px;flex-wrap:wrap;}
.hero-illus{width:100%;max-width:420px;margin-left:auto;}
.hero-wheel{background:rgba(14,36,56,.40);backdrop-filter:blur(5px);-webkit-backdrop-filter:blur(5px);border:1px solid rgba(255,255,255,.15);border-radius:22px;padding:16px;box-shadow:0 28px 70px rgba(0,0,0,.34);}
.hero-wheel img{width:100%;display:block;}
.xp-illus{width:100%;height:210px;object-fit:cover;border-radius:10px;margin-bottom:18px;border:1px solid var(--line);}
.img-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.img-grid img{width:100%;height:230px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.photo-figure img{width:100%;height:340px;object-fit:cover;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow-sm);}
.media-split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.media-split .figure img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-sm);border:1px solid var(--line);}
.figure figcaption{margin-top:12px;font-size:.86rem;color:var(--muted);text-align:center;}
.dual-charts{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:stretch;}
.dual-charts img{width:100%;height:100%;object-fit:contain;border-radius:var(--radius);border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);}

/* ---------- Hero ---------- */
.hero{
  position:relative;color:#e8eef4;
  background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy) 55%,var(--navy-700) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(46,125,80,.35),transparent 62%);pointer-events:none;
}
.hero--photo{background:linear-gradient(118deg,rgba(14,36,56,.94) 0%,rgba(20,48,77,.86) 48%,rgba(20,48,77,.62) 100%), url('assets/photos/hero.jpg');background-size:cover;background-position:center;}
.hero .container{position:relative;z-index:2;padding-top:96px;padding-bottom:96px;}
.hero h1{color:#fff;max-width:16ch;}
.hero .lead{color:#bcd0e0;font-size:1.25rem;max-width:620px;}
.hero-badges{display:flex;gap:26px;flex-wrap:wrap;margin-top:34px;}
.hero-badge{font-size:.9rem;color:#a9c2d6;display:flex;align-items:center;gap:8px;}
.hero-badge b{color:#fff;}

/* ---------- Grids & cards ---------- */
.grid{display:grid;gap:24px;}
.grid-2{grid-template-columns:repeat(2,1fr);}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
  height:100%;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.card .num{font-family:var(--serif);font-size:1.5rem;color:var(--green);font-weight:700;}
.card h3{margin-top:10px;}
.card p{color:var(--muted);margin-bottom:0;font-size:.97rem;}
.card .tags{margin-top:14px;font-size:.85rem;color:var(--green-600);font-weight:600;}

.icon-badge{
  width:54px;height:54px;border-radius:12px;background:var(--green-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:18px;
}
.icon-badge svg{width:28px;height:28px;stroke:var(--green-600);fill:none;stroke-width:1.8;}

/* feature card with left accent */
.feature{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--green);
  border-radius:10px;padding:26px 28px;box-shadow:var(--shadow-sm);height:100%;
}
.feature h3{display:flex;align-items:baseline;gap:10px;}
.feature h3 .n{color:var(--green);font-family:var(--serif);}
.feature ul{margin:14px 0 0;padding-left:0;list-style:none;}
.feature ul li{position:relative;padding-left:26px;margin-bottom:10px;color:var(--ink);font-size:.97rem;}
.feature ul li::before{content:"";position:absolute;left:0;top:.55em;width:12px;height:7px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg);}
.feature .deliverables{margin-top:18px;padding-top:14px;border-top:1px dashed var(--line);font-size:.86rem;color:var(--muted);}
.feature .deliverables b{color:var(--navy);text-transform:uppercase;letter-spacing:.08em;font-size:.72rem;}

/* ---------- Detailed expertise block ---------- */
.xp{margin-bottom:40px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-sm);background:#fff;}
.xp-head{background:var(--navy);color:#fff;padding:22px 30px;display:flex;align-items:center;gap:16px;}
.xp-head .n{font-family:var(--serif);font-size:1.8rem;color:#7fd1a3;font-weight:700;}
.xp-head h3{color:#fff;margin:0;}
.xp-head .sub{display:block;font-family:var(--sans);font-style:italic;font-weight:400;color:#bcd0e0;font-size:.95rem;margin-top:3px;}
.xp-body{display:grid;grid-template-columns:1fr 1.6fr;gap:0;}
.xp-intro{padding:28px 30px;background:var(--bg-soft);border-right:1px solid var(--line);}
.xp-intro .enbref{margin-top:16px;color:var(--green-600);font-style:italic;font-size:.95rem;border-top:1px solid var(--line);padding-top:14px;}
.xp-detail{padding:28px 30px;}
.xp-detail ul{margin:0;padding-left:0;list-style:none;}
.xp-detail li{position:relative;padding-left:26px;margin-bottom:13px;font-size:.97rem;}
.xp-detail li::before{content:"";position:absolute;left:0;top:.5em;width:12px;height:7px;border-left:2px solid var(--green);border-bottom:2px solid var(--green);transform:rotate(-45deg);}
.xp-deliver{background:var(--green-100);padding:14px 30px;font-size:.88rem;color:var(--navy-700);}
.xp-deliver b{color:var(--green-600);text-transform:uppercase;letter-spacing:.08em;font-size:.74rem;margin-right:8px;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:s;}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:24px;text-align:center;box-shadow:var(--shadow-sm);}
.step .s-num{width:44px;height:44px;border-radius:50%;background:var(--navy);color:#fff;font-family:var(--serif);font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:1.2rem;}
.step h4{margin:0 0 4px;font-family:var(--sans);font-size:1rem;font-weight:700;color:var(--navy);}
.step p{font-size:.86rem;color:var(--muted);margin:0;}

/* ---------- Alert / note ---------- */
.note{
  background:#fff7e9;border:1px solid #f0dcae;border-left:4px solid #d99a1c;
  border-radius:10px;padding:22px 26px;
}
.note h4{color:#9a6a05;font-family:var(--sans);font-weight:700;margin:0 0 8px;}
.note p{margin:0;color:#6b5320;font-size:.97rem;}

/* ---------- About ---------- */
.about-grid{display:grid;grid-template-columns:300px 1fr;gap:48px;align-items:start;}
.portrait-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:18px;box-shadow:var(--shadow);text-align:center;}
.portrait-card img{border-radius:10px;width:100%;}
.portrait-card .pc-name{font-family:var(--serif);font-weight:700;color:var(--navy);font-size:1.3rem;margin-top:16px;}
.portrait-card .pc-role{color:var(--green-600);font-weight:600;font-size:.95rem;}
.portrait-card .pc-meta{color:var(--muted);font-size:.85rem;margin-top:10px;line-height:1.5;}

.timeline{list-style:none;margin:0;padding:0;position:relative;}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line);}
.timeline li{position:relative;padding:0 0 22px 34px;}
.timeline li::before{content:"";position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--green);}
.timeline .yr{font-family:var(--sans);font-weight:700;color:var(--green-600);font-size:.85rem;letter-spacing:.04em;}
.timeline h4{margin:2px 0 4px;font-family:var(--sans);font-size:1.05rem;color:var(--navy);}
.timeline p{margin:0;color:var(--muted);font-size:.95rem;}

.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px;}
.chip{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:7px 16px;font-size:.88rem;color:var(--navy-700);font-weight:500;}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center;}
.stat .big{font-family:var(--serif);font-size:2.6rem;font-weight:700;color:#fff;line-height:1;}
.stat .lbl{color:#9db6ca;font-size:.92rem;margin-top:6px;}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start;}
.contact-list{list-style:none;margin:0;padding:0;}
.contact-list li{display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--line);}
.contact-list .ci{width:46px;height:46px;border-radius:10px;background:var(--green-100);display:flex;align-items:center;justify-content:center;flex-shrink:0;}
.contact-list .ci svg{width:22px;height:22px;stroke:var(--green-600);fill:none;stroke-width:1.8;}
.contact-list .lbl{font-size:.78rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);font-weight:700;}
.contact-list .val{font-size:1.05rem;color:var(--navy);font-weight:600;}
.contact-list .val a{color:var(--navy);}
.contact-list .val a:hover{color:var(--green-600);}
.contact-actions{flex-wrap:nowrap;gap:10px;}
.contact-actions .btn{padding:10px 14px;font-size:.86rem;white-space:nowrap;}
@media (max-width:680px){.contact-actions{flex-wrap:wrap;}}
.qr-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;text-align:center;box-shadow:var(--shadow-sm);}
.qr-card img{width:180px;margin:0 auto 14px;}
.qr-card p{margin:0;color:var(--muted);font-size:.9rem;}

/* ---------- CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--green) 0%,var(--green-600) 100%);color:#fff;border-radius:18px;padding:54px 48px;text-align:center;}
.cta-band h2{color:#fff;}
.cta-band p{color:#e3f1e9;max-width:620px;margin:0 auto 26px;}

/* ---------- Page hero (inner) ---------- */
.page-hero{background:linear-gradient(135deg,var(--navy-900),var(--navy));color:#dce6ef;padding:70px 0 56px;}
.page-hero h1{color:#fff;margin-bottom:.3em;}
.page-hero p{color:#bcd0e0;max-width:680px;margin:0;font-size:1.12rem;}
.crumbs{font-size:.85rem;color:#7e9bb3;margin-bottom:16px;}
.crumbs a{color:#9db6ca;}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:#9db6ca;padding:60px 0 26px;font-size:.95rem;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.08);}
.site-footer h4{color:#fff;font-family:var(--sans);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:16px;}
.site-footer a{color:#9db6ca;display:block;margin-bottom:10px;}
.site-footer a:hover{color:#fff;}
.footer-brand img{height:52px;background:#fff;border-radius:10px;padding:8px;margin-bottom:14px;}
.footer-brand p{color:#8aa3b8;font-size:.92rem;max-width:34ch;}
.footer-bottom{padding-top:22px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#6f879b;font-size:.85rem;}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .xp-body{grid-template-columns:1fr;}
  .xp-intro{border-right:0;border-bottom:1px solid var(--line);}
  .about-grid{grid-template-columns:1fr;}
  .portrait-card{max-width:300px;margin:0 auto;}
  .contact-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-illus{max-width:340px;margin:8px auto 0;}
  .hero-wheel{max-width:520px;margin:8px auto 0;}
  .media-split{grid-template-columns:1fr;}
  .dual-charts{grid-template-columns:1fr;}
}
@media (max-width:680px){
  .section{padding:60px 0;}
  .grid-2,.grid-3,.grid-4,.stats{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .nav-links{
    position:fixed;inset:78px 0 auto 0;background:#fff;flex-direction:column;
    align-items:stretch;gap:0;padding:10px 24px 22px;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);transform:translateY(-160%);transition:transform .28s ease;
  }
  .nav-links.open{transform:translateY(0);}
  .nav-links a{padding:14px 6px;border-bottom:1px solid var(--bg-soft);border-radius:0;}
  .nav-links .btn{margin:12px 0 0;justify-content:center;}
  .nav-toggle{display:block;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:40px 24px;}
}