/* ==========================================================================
   JSO Management Solutions — feuille de style
   Sommaire : 1 Variables · 2 Base · 3 Composants · 4 En-tête · 5 Sections
              6 Formulaire · 7 Pied de page · 8 Animations · 9 Accessibilité
   ========================================================================== */

/* 1. Variables ------------------------------------------------------------ */
:root{
  --navy-950:#0c1c33;
  --navy-900:#122a4a;
  --navy-800:#1b3a6b;
  --navy-700:#234a86;
  --blue-600:#2f5fa8;
  --gold-500:#e8a13d;
  --gold-600:#b97712;          /* assombri : contraste AA sur fond clair */
  --grey-500:#8b93a1;
  --grey-200:#e6e9ee;
  --grey-100:#f4f6f9;
  --white:#fff;
  --ink-900:#151b26;
  --ink-700:#3a4353;
  --ink-500:#5a6475;           /* assombri : contraste AA */
  --radius:14px;
  --shadow-sm:0 2px 10px rgba(12,28,51,.06);
  --shadow-md:0 10px 30px rgba(12,28,51,.10);
  --shadow-lg:0 24px 60px rgba(12,28,51,.16);
  --maxw:1180px;
  --header-h:76px;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-head:'Playfair Display',Georgia,'Times New Roman',serif;
}

/* 2. Base ----------------------------------------------------------------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:var(--header-h);-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--font-body);color:var(--ink-900);background:var(--white);
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--font-head);color:var(--navy-900);line-height:1.18;margin:0 0 .5em;letter-spacing:-.01em}
p{line-height:1.75;color:var(--ink-700);margin:0 0 1em}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
ul{margin:0;padding:0}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{padding:96px 0}
@media (max-width:768px){section{padding:64px 0}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--gold-600);
}
.section-head{max-width:680px;margin-bottom:52px}
.section-head.center{margin-inline:auto;text-align:center}
.section-sub{font-size:17px;color:var(--ink-500)}
.bg-soft{background:var(--grey-100)}

/* 3. Boutons -------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:15px 30px;border-radius:999px;border:1px solid transparent;
  font:600 15px/1.2 var(--font-body);cursor:pointer;white-space:nowrap;transition:.25s ease;
}
.btn-primary{background:var(--gold-500);color:var(--navy-950)}
.btn-primary:hover{background:#d8922c;transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-outline{border-color:var(--navy-800);color:var(--navy-800)}
.btn-outline:hover{background:var(--navy-800);color:#fff;transform:translateY(-2px)}
.btn-navy{background:var(--navy-800);color:#fff}
.btn-navy:hover{background:var(--navy-900);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-block{width:100%}
.btn-sm{padding:11px 22px}

/* 4. En-tête & navigation ------------------------------------------------- */
.site-header{
  position:fixed;inset:0 0 auto 0;z-index:1000;
  background:rgba(255,255,255,.92);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  transition:background .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.98);box-shadow:var(--shadow-sm)}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  max-width:1280px;margin:0 auto;padding:12px 24px;min-height:var(--header-h);
}
.brand{display:flex;align-items:center;gap:12px;min-width:0}
.brand img{height:44px;width:auto;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-family:var(--font-head);font-size:16px;color:var(--navy-900);letter-spacing:.01em;white-space:nowrap}
.brand-text span{display:none;font-size:10px;letter-spacing:.12em;color:var(--gold-600);font-weight:700;text-transform:uppercase;white-space:nowrap}
@media (min-width:1400px){.brand-text span{display:block}}

.main-nav ul{list-style:none;display:flex;align-items:center;gap:24px}
.main-nav a:not(.btn){position:relative;display:inline-block;padding:6px 0;font-size:14.5px;white-space:nowrap;font-weight:600;color:var(--navy-900)}
.main-nav a:not(.btn)::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--gold-500);transition:width .25s}
.main-nav a:not(.btn):hover::after,.main-nav a.active::after{width:100%}

.nav-right{display:flex;align-items:center;gap:14px}
.lang-toggle{display:flex;border:1.5px solid rgba(139,147,161,.55);border-radius:999px;overflow:hidden;font-size:12.5px}
.lang-toggle button{padding:7px 13px;background:transparent;border:0;cursor:pointer;color:var(--navy-900);font:700 12.5px/1 var(--font-body);letter-spacing:.03em}
.lang-toggle button[aria-pressed="true"]{background:var(--gold-500);color:var(--navy-950)}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:24px;height:2px;background:var(--navy-900);transition:transform .3s,opacity .3s}
.burger[aria-expanded="true"] span{background:#fff}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:1180px){
  .burger{display:flex;position:relative;z-index:1002}
  .main-nav{
    position:fixed;top:0;right:0;height:100vh;height:100dvh;width:78%;max-width:340px;z-index:1001;
    background:var(--navy-950);padding:100px 34px 40px;box-shadow:-10px 0 40px rgba(0,0,0,.3);
    transform:translateX(105%);visibility:hidden;transition:transform .35s ease,visibility 0s .35s;
  }
  .main-nav.open{transform:none;visibility:visible;transition:transform .35s ease}
  .main-nav ul{flex-direction:column;align-items:flex-start;gap:26px}
  .main-nav a:not(.btn){color:#fff;font-size:17px}
  .main-nav .nav-cta{margin-top:10px}
  .nav-scrim{position:fixed;inset:0;background:rgba(12,28,51,.55);z-index:999;opacity:0;visibility:hidden;transition:opacity .3s}
  .nav-scrim.show{opacity:1;visibility:visible}
}
@media (min-width:1181px){.nav-scrim{display:none}}
@media (max-width:440px){.brand-text{display:none}.brand img{height:40px}.nav-bar{gap:12px}}

/* 5. Sections ------------------------------------------------------------- */
/* Hero */
.hero{
  position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;overflow:hidden;padding:0;
  background:linear-gradient(180deg,#f7f9fc 0%,#eef2f8 55%,#e8edf5 100%);
}
.hero::before{
  content:"";position:absolute;top:-20%;right:-12%;width:640px;height:640px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,rgba(232,161,61,.16),rgba(47,95,168,.08) 55%,transparent 72%);
}
.hero .wrap{
  position:relative;z-index:1;width:100%;padding-top:calc(var(--header-h) + 60px);padding-bottom:70px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;
}
.hero-media img{width:100%;height:460px;object-fit:cover;object-position:center 25%;border-radius:20px;box-shadow:var(--shadow-lg)}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;margin-bottom:26px;padding:8px 18px;
  background:#fff;border:1px solid var(--grey-200);border-radius:999px;box-shadow:var(--shadow-sm);
  color:var(--navy-800);font-size:13px;font-weight:600;letter-spacing:.04em;
}
.hero-badge .dot{width:7px;height:7px;border-radius:50%;background:var(--gold-500)}
.hero h1{font-size:clamp(30px,4.4vw,52px);margin-bottom:22px}
.hero h1 em{font-style:normal;color:var(--gold-600)}
.hero .lead{font-size:18px;max-width:560px;margin-bottom:38px}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px 0;margin-top:60px;padding-top:30px;border-top:1px solid var(--grey-200)}
.hero-stats div{padding-right:30px;margin-right:30px;border-right:1px solid var(--grey-200)}
.hero-stats div:last-child{border:0;margin:0;padding:0}
.hero-stats b{display:block;font-family:var(--font-head);font-size:28px;color:var(--navy-900)}
.hero-stats span{font-size:13px;color:var(--ink-500)}
@media (max-width:900px){
  .hero .wrap{grid-template-columns:1fr;gap:36px;padding-top:calc(var(--header-h) + 28px)}
  .hero-media{order:-1}
  .hero-media img{height:280px}
}
@media (max-width:480px){.hero-stats div{padding-right:22px;margin-right:22px}}

/* À propos */
.about-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.about-media img{border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%}
.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:30px}
.mv-card{background:var(--grey-100);border-left:3px solid var(--gold-500);border-radius:10px;padding:22px 24px}
.mv-card h4{font-size:16px;margin-bottom:8px}
.mv-card p{font-size:14.5px;margin:0}
@media (max-width:860px){.about-grid{grid-template-columns:1fr;gap:40px}}
@media (max-width:520px){.mv-grid{grid-template-columns:1fr}}

/* Approche */
.approach{background:var(--navy-950)}
.approach h2{color:#fff}
.approach .eyebrow{color:var(--gold-500)}
.approach .section-sub{color:rgba(255,255,255,.7)}
.approach-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;list-style:none}
.ap-item{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:28px 22px}
.ap-item .num{display:block;margin-bottom:14px;font-family:var(--font-head);font-size:34px;color:var(--gold-500)}
.ap-item h3{color:#fff;font-size:16px;margin-bottom:8px}
.ap-item p{color:rgba(255,255,255,.7);font-size:14px;margin:0}
@media (max-width:960px){.approach-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.approach-grid{grid-template-columns:1fr}}

/* Expertises */
.cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--grey-200);border-radius:var(--radius);padding:32px 26px;box-shadow:var(--shadow-sm);transition:.25s ease}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.card .icon{width:54px;height:54px;margin-bottom:20px;border-radius:12px;background:linear-gradient(135deg,var(--navy-800),var(--blue-600));display:flex;align-items:center;justify-content:center}
.card .icon svg{width:26px;height:26px;stroke:#fff;fill:none}
.card h3{font-size:18.5px;margin-bottom:10px}
.card ul{padding-left:18px;color:var(--ink-500);font-size:14px;line-height:1.85}
@media (max-width:980px){.cards4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.cards4{grid-template-columns:1fr}}

/* Pourquoi nous */
.why-list{display:flex;flex-direction:column;gap:18px;margin-top:10px;list-style:none;max-width:760px}
.why-list li{display:flex;gap:16px;align-items:flex-start}
.why-list .chk{flex:none;width:30px;height:30px;margin-top:2px;border-radius:50%;background:var(--navy-800);color:#fff;display:flex;align-items:center;justify-content:center}
.why-list .chk svg{width:14px;height:14px;stroke:#fff;fill:none}
.why-list b{display:block;margin-bottom:2px;color:var(--navy-900);font-size:15.5px}
.why-list span{color:var(--ink-500);font-size:14px}

/* Secteurs */
.sectors-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;list-style:none}
.sector-pill{border:1px solid var(--grey-200);border-radius:12px;padding:26px 20px;text-align:center;transition:.25s}
.sector-pill:hover{border-color:var(--gold-500);box-shadow:var(--shadow-sm)}
.sector-pill .ic{width:52px;height:52px;margin:0 auto 14px;border-radius:50%;background:var(--grey-100);color:var(--navy-800);display:flex;align-items:center;justify-content:center}
.sector-pill .ic svg{width:24px;height:24px;stroke:currentColor;fill:none}
.sector-pill b{display:block;font-size:14.5px;color:var(--navy-900)}
@media (max-width:860px){.sectors-grid{grid-template-columns:repeat(2,1fr)}}

/* Réalisations */
.table-scroll{overflow-x:auto}
.work-table{width:100%;border-collapse:collapse}
.work-table th{text-align:left;padding:14px 18px;border-bottom:2px solid var(--navy-900);font-size:12.5px;text-transform:uppercase;letter-spacing:.08em;color:var(--ink-500)}
.work-table td{padding:20px 18px;border-bottom:1px solid var(--grey-200);font-size:15px;vertical-align:top;color:var(--ink-700)}
.work-table td:first-child{width:32%;font-weight:700;color:var(--navy-900)}
.work-table tbody tr:hover{background:#fff}
.work-note{margin-top:26px;padding:20px 24px;background:#fff;border-radius:12px;border-left:3px solid var(--gold-500);font-size:14.5px;color:var(--ink-700);line-height:1.7}
@media (max-width:640px){
  .work-table thead{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
  .work-table,.work-table tbody,.work-table tr,.work-table td{display:block;width:100%}
  .work-table tr{padding:16px 0;border-bottom:1px solid var(--grey-200)}
  .work-table td{padding:2px 4px;border:0}
  .work-table td:first-child{width:100%}
}

/* Équipe */
.team{background:var(--navy-950)}
.team-grid{display:grid;grid-template-columns:.7fr 1.3fr;gap:60px;align-items:center}
.team-photo{position:relative;isolation:isolate;max-width:340px}
.team-photo img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow-lg)}
.team-photo .frame{position:absolute;inset:18px -18px -18px 18px;border:2px solid var(--gold-500);border-radius:var(--radius);z-index:-1}
.team .eyebrow{color:var(--gold-500)}
.team h2{color:#fff}
.team-name{display:block;font-family:var(--font-head);font-size:24px;color:#fff;margin-bottom:2px}
.team-role{display:block;margin-bottom:18px;color:var(--gold-500);font-size:14px;font-weight:700;letter-spacing:.03em}
.team-text p{color:rgba(255,255,255,.78)}
.team-quote{margin:22px 0 0;padding-left:20px;border-left:3px solid var(--gold-500);font:italic 17px/1.6 var(--font-head);color:rgba(255,255,255,.88)}
@media (max-width:860px){.team-grid{grid-template-columns:1fr;gap:44px}.team-photo .frame{inset:14px -8px -14px 8px}}

/* Bandeau d'appel à l'action */
.cta-band{padding:80px 24px;text-align:center;color:#fff;background:linear-gradient(120deg,var(--navy-800),var(--navy-700))}
.cta-band h2{color:#fff;font-size:clamp(26px,4vw,38px)}
.cta-band p{color:rgba(255,255,255,.85);max-width:560px;margin:0 auto 30px}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px}
.info-item{display:flex;gap:16px;margin-bottom:26px}
.info-item .ic{flex:none;width:46px;height:46px;border-radius:10px;background:var(--grey-100);color:var(--navy-800);display:flex;align-items:center;justify-content:center}
.info-item .ic svg{width:20px;height:20px;stroke:currentColor;fill:none}
.info-item b{display:block;margin-bottom:3px;font-size:14px;color:var(--navy-900)}
.info-item span,.info-item a{font-size:14.5px;color:var(--ink-500)}
.info-item a:hover{color:var(--navy-800);text-decoration:underline}
@media (max-width:900px){.contact-grid{grid-template-columns:1fr;gap:40px}}

/* 6. Formulaire ----------------------------------------------------------- */
.contact-form{background:var(--grey-100);border-radius:var(--radius);padding:38px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
.form-full{margin-bottom:16px}
label{display:block;margin-bottom:7px;font-size:13px;font-weight:600;color:var(--navy-900)}
.req{color:#b3261e}
input,select,textarea{
  width:100%;padding:13px 15px;border-radius:9px;border:1.5px solid #cfd5de;background:#fff;color:var(--ink-900);
  font:400 14.5px/1.4 var(--font-body);
}
input:focus,select:focus,textarea:focus{outline:2px solid var(--blue-600);outline-offset:1px;border-color:var(--blue-600)}
textarea{resize:vertical;min-height:120px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-status{margin:14px 0 0;padding:12px 14px;border-radius:8px;font-size:14px;line-height:1.5;font-weight:600}
.form-status.ok{background:#e7f4ea;color:#14532d}
.form-status.err{background:#fdecec;color:#7f1d1d}
.form-note{margin:14px 0 0;font-size:12.5px;color:var(--ink-500);line-height:1.6}
@media (max-width:560px){.form-row{grid-template-columns:1fr}.contact-form{padding:26px 20px}}

/* 7. Pied de page --------------------------------------------------------- */
.site-footer{padding:70px 0 26px;background:var(--navy-950);color:rgba(255,255,255,.75)}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .logo-chip{background:#fff;border-radius:10px;padding:5px 8px;display:flex}
.footer-brand img{height:34px;width:auto}
.footer-brand b{color:#fff;font-family:var(--font-head);font-size:16px}
.footer-desc{max-width:280px;font-size:14px;color:rgba(255,255,255,.7)}
.site-footer h2{margin-bottom:18px;color:#fff;font:700 13.5px/1.2 var(--font-body);text-transform:uppercase;letter-spacing:.08em}
.site-footer ul{list-style:none;display:flex;flex-direction:column;gap:11px;font-size:14px}
.site-footer ul a{color:rgba(255,255,255,.72)}
.site-footer ul a:hover{color:var(--gold-500)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;padding-top:26px;font-size:13px;color:rgba(255,255,255,.65)}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;row-gap:36px}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}

/* Retour en haut */
.totop{
  position:fixed;right:22px;bottom:22px;z-index:900;width:46px;height:46px;border-radius:50%;border:0;cursor:pointer;
  background:var(--navy-800);color:#fff;font-size:20px;box-shadow:var(--shadow-md);
  display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:.3s;
}
.totop.show{opacity:1;visibility:visible}

/* 8. Animations ----------------------------------------------------------- */
/* Les blocs ne sont masqués que si le JavaScript est actif (classe .js sur <html>). */
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}

/* 9. Accessibilité -------------------------------------------------------- */
.skip-link{position:fixed;left:16px;top:-60px;z-index:2000;padding:12px 20px;border-radius:8px;background:var(--gold-500);color:var(--navy-950);font-weight:700;transition:top .2s}
.skip-link:focus{top:12px}
:focus-visible{outline:3px solid var(--blue-600);outline-offset:3px;border-radius:4px}
.approach :focus-visible,.team :focus-visible,.site-footer :focus-visible,.main-nav :focus-visible,.cta-band :focus-visible{outline-color:var(--gold-500)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
  .js .reveal{opacity:1;transform:none}
}
@media print{
  .site-header,.totop,.nav-scrim,.skip-link{display:none!important}
  .js .reveal{opacity:1;transform:none}
  section{padding:32px 0}
  .hero{min-height:0}
}