/* ============================================================
   SolutionsIA V2 — Design system (SaaS premium, style Stripe/Linear)
   Palette : bleu profond #004182 / bleu #0A66C2 / navy #071A33
   ============================================================ */
:root{
  --navy:#071A33; --navy-2:#0B2B54; --blue:#0A66C2; --blue-deep:#004182;
  --blue-soft:#E8F1FC; --bg:#F6F8FC; --white:#FFFFFF;
  --ink:#0B1526; --muted:#5A6B85; --line:#E3E9F2;
  --green:#0FA862; --green-soft:#E6F7EF;
  --radius:18px; --radius-lg:26px;
  --shadow-sm:0 1px 2px rgba(7,26,51,.06),0 4px 12px rgba(7,26,51,.05);
  --shadow-md:0 2px 4px rgba(7,26,51,.05),0 16px 32px -12px rgba(7,26,51,.18);
  --shadow-lg:0 4px 8px rgba(7,26,51,.06),0 32px 64px -24px rgba(7,26,51,.28);
  --grad:linear-gradient(135deg,#0A66C2 0%,#004182 100%);
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.65;-webkit-font-smoothing:antialiased;font-size:16.5px}
img{max-width:100%}
a{text-decoration:none;color:inherit}
.wrap{max-width:1160px;margin:0 auto;padding:0 24px}

/* ---------- Navigation ---------- */
.site-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(227,233,242,.9)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.3px}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--grad);display:grid;place-items:center;color:#fff;font-size:17px;box-shadow:var(--shadow-sm)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:9px 14px;border-radius:10px;font-weight:550;font-size:14.5px;color:#2A3B55;transition:.18s}
.nav-links a:hover{background:var(--blue-soft);color:var(--blue-deep)}
.nav-cta{background:var(--grad);color:#fff !important;padding:10px 20px !important;border-radius:12px;font-weight:600;box-shadow:var(--shadow-sm)}
.nav-cta:hover{background:linear-gradient(135deg,#0B74D8,#004F9E);transform:translateY(-1px)}
.nav-burger{display:none;background:none;border:0;font-size:24px;cursor:pointer}

/* ---------- Boutons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 26px;border-radius:14px;font-weight:650;font-size:15.5px;transition:.2s;border:0;cursor:pointer}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 8px 20px -6px rgba(0,65,130,.5)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 28px -8px rgba(0,65,130,.55)}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.25);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:rgba(255,255,255,.16)}
.btn-white{background:#fff;color:var(--blue-deep);box-shadow:var(--shadow-sm)}
.btn-white:hover{transform:translateY(-2px)}
.btn-wa{background:#fff;color:#075E3C;border:1px solid var(--green-soft)}

/* ---------- Hero ---------- */
.hero{position:relative;background:radial-gradient(1100px 600px at 85% -10%,rgba(10,102,194,.55),transparent 60%),radial-gradient(900px 500px at -10% 110%,rgba(0,65,130,.65),transparent 55%),linear-gradient(160deg,#0A1F42 0%,#071A33 45%,#081F3E 100%);color:#fff;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);background-size:56px 56px;mask-image:radial-gradient(ellipse 90% 70% at 50% 20%,#000 30%,transparent 75%)}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;padding:96px 0 100px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);padding:7px 15px;border-radius:100px;font-size:13px;font-weight:600;color:#CFE3F8;margin-bottom:26px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:#2BD576;box-shadow:0 0 0 4px rgba(43,213,118,.2);animation:pulse 2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px rgba(43,213,118,.25)}50%{box-shadow:0 0 0 7px rgba(43,213,118,.08)}}
.hero h1{font-size:clamp(38px,4.6vw,58px);line-height:1.08;letter-spacing:-1.5px;font-weight:800;margin-bottom:22px}
.hero h1 .grad-txt{background:linear-gradient(92deg,#6DB3F2,#BBD9F7);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{font-size:clamp(16px,1.6vw,19px);color:#A9BFD9;max-width:520px;margin-bottom:34px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:14px}
.hero-note{font-size:13px;color:#7E99B8;margin-top:16px;display:flex;gap:7px;align-items:center}
.hero-proof{display:flex;gap:34px;margin-top:44px;padding-top:30px;border-top:1px solid rgba(255,255,255,.12)}
.proof-item .num{font-size:27px;font-weight:800;letter-spacing:-.5px;color:#fff}
.proof-item .num em{font-style:normal;color:#5FB3F5}
.proof-item .lbl{font-size:12.8px;color:#8DA8C6;margin-top:2px}

/* Mockup chat */
.hero-visual{position:relative}
.chat-card{background:#fff;border-radius:26px;box-shadow:var(--shadow-lg);overflow:hidden;transform:rotate(0deg);animation:float 7s ease-in-out infinite;color:var(--ink)}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.chat-head{display:flex;align-items:center;gap:12px;padding:16px 18px;background:linear-gradient(135deg,#0B5E3C,#128C4A);color:#fff}
.chat-ava{width:42px;height:42px;border-radius:50%;background:rgba(255,255,255,.2);display:grid;place-items:center;font-size:20px}
.chat-head .nm{font-weight:700;font-size:15px;line-height:1.2}
.chat-head .st{font-size:12px;opacity:.85;display:flex;align-items:center;gap:5px}
.chat-head .st i{width:7px;height:7px;border-radius:50%;background:#2BD576;display:inline-block}
.chat-body{background:#ECE5DD;padding:18px 16px;display:flex;flex-direction:column;gap:9px;min-height:340px;background-image:radial-gradient(rgba(0,0,0,.03) 1px,transparent 1px);background-size:18px 18px}
.bub{max-width:82%;padding:10px 14px;border-radius:14px;font-size:14px;line-height:1.45;box-shadow:0 1px 1px rgba(0,0,0,.06)}
.bub.in{background:#fff;align-self:flex-start;border-bottom-left-radius:4px}
.bub.out{background:#D9FDD3;align-self:flex-end;border-bottom-right-radius:4px}
.bub .t{font-size:11px;color:#8A8A8A;margin-top:4px;text-align:right}
.chip-row{align-self:flex-end;display:flex;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.chip{background:#fff;border:1px solid #25D366;color:#0B5E3C;font-size:12.5px;font-weight:600;padding:7px 12px;border-radius:100px}
.chat-stamp{position:absolute;bottom:-18px;right:-8px;background:var(--green);color:#fff;padding:10px 18px;border-radius:14px;font-weight:700;font-size:13.5px;box-shadow:var(--shadow-md);display:flex;gap:8px;align-items:center}

/* ---------- Sections ---------- */
section{padding:92px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:750;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);background:var(--blue-soft);padding:7px 14px;border-radius:100px;margin-bottom:18px}
h2.sec-title{font-size:clamp(30px,3.4vw,42px);letter-spacing:-1px;line-height:1.15;font-weight:800;margin-bottom:16px}
.sec-sub{color:var(--muted);font-size:17.5px;max-width:640px;margin-bottom:52px}
.center{text-align:center}
.center .sec-sub{margin-left:auto;margin-right:auto}

/* Cartes génériques */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;transition:.25s}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:#CFE0F2}

/* 3 piliers */
.pillars{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pillar-icon{width:54px;height:54px;border-radius:15px;display:grid;place-items:center;margin-bottom:20px;font-size:25px}
.pillars h3{font-size:19.5px;font-weight:750;letter-spacing:-.3px;margin-bottom:10px}
.pillars p{color:var(--muted);font-size:15.5px}

/* Capacités numérotées */
.caps{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.cap{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px;display:flex;gap:22px;transition:.25s}
.cap:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.cap .n{flex:0 0 52px;height:52px;border-radius:15px;background:var(--blue-soft);color:var(--blue-deep);display:grid;place-items:center;font-weight:800;font-size:19px}
.cap h3{font-size:18.5px;font-weight:750;margin-bottom:7px}
.cap p{color:var(--muted);font-size:15.3px}

/* Métiers */
.metiers{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:22px}
.metier{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px 30px;display:flex;flex-direction:column;gap:12px;transition:.25s;overflow:hidden}
.metier::after{content:"→";position:absolute;right:26px;bottom:22px;font-size:22px;color:var(--blue);opacity:0;transform:translateX(-8px);transition:.25s}
.metier:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#CFE0F2}
.metier:hover::after{opacity:1;transform:translateX(0)}
.metier .emoji{width:60px;height:60px;border-radius:18px;background:var(--blue-soft);display:grid;place-items:center;font-size:28px;margin-bottom:6px}
.metier h3{font-size:19px;font-weight:750;letter-spacing:-.3px}
.metier p{color:var(--muted);font-size:15px;line-height:1.6}

/* Contact */
.contact-section{background:radial-gradient(900px 500px at 15% 0%,rgba(10,102,194,.5),transparent 55%),linear-gradient(160deg,#0A1F42,#071A33 60%);color:#fff;border-radius:36px;margin:0 24px 90px;padding:80px 60px;position:relative;overflow:hidden}
.contact-section::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:56px 56px}
.contact-inner{position:relative;display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:center}
.contact-section h2{font-size:clamp(28px,3vw,38px);letter-spacing:-1px;font-weight:800;margin:14px 0 18px}
.contact-section .lead{color:#A9BFD9;font-size:16.5px;max-width:420px}
.contact-options{display:flex;flex-direction:column;gap:16px}
.co{display:flex;align-items:center;gap:18px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);border-radius:18px;padding:18px 22px;transition:.2s}
.co:hover{background:rgba(255,255,255,.13);transform:translateX(4px)}
.co .ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:22px;background:rgba(255,255,255,.12)}
.co .lbl{font-weight:700;font-size:16.5px}
.co .sub{font-size:13.5px;color:#8DA8C6}
.co-wa .ic{background:rgba(37,211,102,.2)}

/* Footer */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:34px 0;color:var(--muted);font-size:14px}
.foot-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot-links{display:flex;gap:20px;flex-wrap:wrap}
.foot-links a{color:var(--muted)}
.foot-links a:hover{color:var(--blue-deep)}

/* Reveal */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.visible{opacity:1;transform:none}
.d1{transition-delay:.08s}.d2{transition-delay:.16s}.d3{transition-delay:.24s}

/* Responsive */
@media(max-width:960px){
  .hero-inner{grid-template-columns:1fr;padding:64px 0 80px;gap:48px}
  .contact-inner{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr;max-width:520px}
  .caps{grid-template-columns:1fr}
  .contact-section{padding:54px 28px}
}
@media(max-width:720px){
  .nav-links{display:none}
  .nav-burger{display:block}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:70px;left:0;right:0;background:#fff;padding:16px;border-bottom:1px solid var(--line);align-items:stretch}
  section{padding:66px 0}
  .hero-proof{flex-wrap:wrap;gap:22px}
  .chat-stamp{position:static;margin-top:18px;justify-content:center}
}

/* Sélecteur de langue */
.lang-switch{display:flex;align-items:center;gap:2px;margin-left:6px;padding-left:14px;border-left:1px solid var(--line)}
.lang-switch a{font-size:12.5px;font-weight:700;padding:5px 8px;border-radius:8px;color:var(--muted);letter-spacing:.02em}
.lang-switch a:hover{color:var(--blue-deep);background:var(--blue-soft)}
.lang-switch a.on{background:var(--grad);color:#fff}
@media(max-width:720px){.lang-switch{border-left:0;padding-left:0;margin:10px 0 0}}

/* Réseaux sociaux footer */
.foot-social{display:flex;align-items:center;gap:8px}
.foot-social a{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:650;color:var(--muted);padding:7px 13px;border:1px solid var(--line);border-radius:100px;transition:.2s}
.foot-social a:hover{color:var(--blue-deep);border-color:var(--blue);background:var(--blue-soft)}