/* Alcodex — feuille de style du site vitrine */
:root{
  --navy:#16324A;
  --ink:#1F2A36;
  --muted:#52606D;
  --petrol:#1C6B88;
  --petrol-soft:#E3F4F8;
  --cyan-on-dark:#8FDDEE;
  --ground:#F4F8FA;
  --line:#DCE6EC;
  --field:#B7C7D2;
  --radius:16px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:#fff;color:var(--ink);font-family:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;font-size:16px;line-height:1.5;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--petrol)}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--petrol);outline-offset:3px;border-radius:6px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px;top:8px;background:var(--navy);color:#fff;padding:10px 16px;border-radius:8px;z-index:100}
.skip:focus{left:16px}

/* En-tête */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:80px}
.brand img{height:52px;width:auto}
.nav{display:flex;flex-wrap:wrap;gap:28px;font-size:15px;font-weight:600}
.nav a{color:var(--ink);text-decoration:none}
.nav a:hover{color:var(--petrol)}
.header-actions{display:flex;align-items:center;gap:16px}
.lang{display:flex;border:1px solid var(--line);border-radius:8px;overflow:hidden;font-size:13px;font-weight:700}
.lang a,.lang span{padding:8px 12px;min-height:36px;display:inline-flex;align-items:center;text-decoration:none;color:var(--navy)}
.lang [aria-current]{background:var(--navy);color:#fff}

/* Boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:12px 22px;border-radius:10px;font-weight:700;font-size:15px;text-decoration:none;border:0;cursor:pointer;font-family:inherit;transition:background .15s}
.btn-primary{background:var(--petrol);color:#fff}
.btn-primary:hover{background:var(--navy);color:#fff}
.btn-ghost{background:#fff;color:var(--navy);border:1px solid #C5D4DD}
.btn-ghost:hover{border-color:var(--navy);color:var(--navy)}
.btn-lg{font-size:16px;padding:14px 24px}

/* Sections */
section{padding:96px 0}
.bg-ground{background:var(--ground)}
.bg-navy{background:var(--navy);color:#fff}
.eyebrow{margin:0 0 12px;font-size:14px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--petrol)}
.bg-navy .eyebrow{color:var(--cyan-on-dark)}
.kicker{margin:0;font-size:13px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3{color:var(--navy);margin:0;font-weight:800}
.bg-navy h2,.bg-navy h3{color:#fff}
h1{font-size:54px;line-height:1.08;letter-spacing:-.02em}
h2{font-size:38px;line-height:1.15}
.section-head{max-width:720px;margin-bottom:40px}
.section-head p{margin:16px 0 0;font-size:17px;line-height:1.6;color:var(--muted)}
.lead{font-size:19px;line-height:1.6;color:var(--muted);max-width:540px;margin:0}

.row{display:flex;flex-wrap:wrap;gap:48px;align-items:center}
.row.reverse{flex-direction:row-reverse}
.col{flex:1 1 440px;min-width:0}
.stack{display:flex;flex-direction:column;gap:20px}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}

/* Hero */
.hero{padding:88px 0 96px}
.hero .stack{gap:24px}
.actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:8px}
.shot{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:10px;box-shadow:0 18px 44px rgba(22,50,74,.10)}
.hero .shot{box-shadow:0 24px 60px rgba(22,50,74,.14)}
.shot img{border-radius:10px;width:100%}

/* Cartes */
.pillar{display:flex;flex-direction:column;gap:16px;padding:36px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;text-decoration:none;color:inherit;transition:border-color .15s,box-shadow .15s}
.pillar:hover{border-color:var(--petrol);box-shadow:0 10px 30px rgba(22,50,74,.08);color:inherit}
.pillar h3{font-size:24px}
.pillar p{margin:0;font-size:16px;line-height:1.6;color:var(--muted)}
.pillar .more{font-weight:700;color:var(--petrol);font-size:15px}
.icon-tile{width:52px;height:52px;border-radius:12px;background:var(--petrol-soft);display:flex;align-items:center;justify-content:center}
.card{border:1px solid var(--line);border-radius:14px;padding:28px;display:flex;flex-direction:column;gap:12px}
.card h3{font-size:19px}
.card p{margin:0;font-size:15px;line-height:1.6;color:var(--muted)}
.bg-navy .card{border-color:rgba(255,255,255,.18);gap:10px}
.bg-navy .card p{color:#C9D6E0}

/* Produits */
.products{display:flex;flex-direction:column;gap:88px}
.product h3{font-size:32px;line-height:1.2}
.product .desc{margin:0;font-size:17px;line-height:1.6;color:var(--muted)}
.checks{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px;font-size:16px}
.checks li{display:flex;gap:12px}
.checks svg{flex:none;margin-top:1px}
.product .btn{align-self:flex-start;margin-top:8px}

/* Références */
.refs{text-align:center}
.refs .eyebrow{margin-bottom:32px}
.logo-tile{height:120px;border:1px solid var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;padding:16px;background:#fff}
.logo-tile img{max-height:72px;width:auto}

/* Contact */
.contact .row{align-items:flex-start}
.contact-info{display:flex;flex-direction:column;gap:10px;font-size:16px;margin-top:8px;color:var(--muted)}
.contact-info a{font-weight:700}
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:32px;display:flex;flex-direction:column;gap:16px}
.form .grid2{gap:16px}
.form label{display:flex;flex-direction:column;gap:6px;font-size:14px;font-weight:600}
.form input,.form select,.form textarea{border:1px solid var(--field);border-radius:8px;padding:12px;font:inherit;font-weight:400;font-size:15px;background:#fff;color:var(--ink);width:100%}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--petrol);box-shadow:0 0 0 3px rgba(28,107,136,.2)}
.form textarea{resize:vertical;min-height:120px}
.form .btn{align-self:flex-start;min-height:48px;font-size:16px;padding:14px 26px}
.form .btn[disabled]{opacity:.6;cursor:progress}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin:0;font-size:15px;font-weight:600;min-height:1.5em}
.form-status.ok{color:#17663A}
.form-status.err{color:#B42318}

/* Pied de page */
.site-footer{border-top:1px solid var(--line);padding:32px 0}
.site-footer .wrap{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:14px;color:var(--muted)}
.site-footer nav{display:flex;gap:20px}

/* Mentions légales */
.legal{padding:72px 0}
.legal .wrap{max-width:800px}
.legal h1{font-size:40px;margin-bottom:32px}
.legal h2{font-size:22px;margin:32px 0 8px}
.legal p{margin:0 0 8px;color:var(--muted);line-height:1.7}

@media (max-width:980px){.nav{display:none}}
@media (max-width:900px){.grid3,.grid4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:620px){
  section{padding:64px 0}
  .hero{padding:56px 0 64px}
  h1{font-size:38px}
  h2{font-size:30px}
  .product h3{font-size:26px}
  .grid2,.grid3,.grid4{grid-template-columns:minmax(0,1fr)}
  .site-header .wrap{height:68px}
  .brand img{height:42px}
  .header-actions .btn{display:none}
  .pillar,.form{padding:24px}
  .products{gap:64px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none !important}}