@import url('https://fonts.googleapis.com/css2?family=Sora:wght@400;600;700;800&family=Manrope:wght@400;500;600;700&display=swap');

:root{
  /* Palette alignée sur l'identité ELITE GROUPE TECHNOLOGIE : navy profond, turquoise (cerveau du logo), indigo et orange (circuit du logo) */
  --bg:#080B1E; --bg-elev:#0B0E28; --card:#10142E; --text:#F5F6F8; --muted:#9AA0AE; --dim:#7B8190; --faint:#5C6270;
  --accent:#46D5DE; --accent2:#5B6EF5; --accent3:#5B6EF5; --accent4:#F2A93C; --border:rgba(255,255,255,0.08);
  --brand-navy:#141A3D;
}
*{box-sizing:border-box}
html{overflow-x:hidden}
body{margin:0;background:var(--bg);color:var(--text);font-family:'Manrope',sans-serif;line-height:1.5;overflow-x:hidden}
h1,h2,h3,.display{font-family:'Sora',sans-serif}
a{color:inherit;text-decoration:none}
::selection{background:var(--accent);color:var(--bg)}
img{max-width:100%}
.container{max-width:1248px;margin:0 auto;padding:0 40px}
.section{padding:100px 0}
.section-tight{padding:60px 0}

.nav{position:sticky;top:0;z-index:50;width:100%;box-sizing:border-box;height:84px;padding:0 40px;display:flex;align-items:center;justify-content:space-between;background:rgba(8,11,30,0.9);border-bottom:1px solid var(--border)}
.nav::before{content:'';position:absolute;inset:0;z-index:-1;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.nav-logo{display:flex;align-items:center;background:#fff;border-radius:12px;padding:8px 14px;box-shadow:0 4px 18px rgba(0,0,0,.25)}
.nav-logo img{height:30px;width:auto;display:block}
.nav-links{display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.nav-link{color:#C6CAD3;font-size:14px;font-weight:600;white-space:nowrap}
.nav-link:hover,.nav-link.active{color:var(--accent)}
.nav-right{display:flex;align-items:center;gap:14px}
.lang-switch{display:flex;background:rgba(255,255,255,0.05);border-radius:9px;padding:3px;gap:2px}
.lang-btn{font-size:12px;font-weight:700;padding:6px 10px;border-radius:7px;color:#7B8190;border:none;background:transparent;cursor:pointer;font-family:'Manrope',sans-serif}
.lang-btn.on{background:rgba(70,213,222,0.14);color:var(--accent)}

/* ---------- Navigation mobile (menu burger sans JS) ---------- */
.nav-toggle-check{display:none}
.nav-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:38px;height:38px;cursor:pointer;z-index:60}
.nav-burger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease,opacity .2s ease;margin:0 auto}
.nav-overlay{display:none;position:fixed;inset:0;background:rgba(3,4,12,.6);z-index:45}
.nav-mobile-actions{display:none}

@media (max-width:1080px){
  .nav{padding:0 20px}
  .nav-right{display:none}
  .nav-burger{display:flex}
  .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:4px;
    position:fixed;top:84px;right:0;bottom:0;width:min(86vw,340px);
    background:var(--bg-elev);border-left:1px solid var(--border);
    padding:26px 26px 40px 26px;z-index:55;overflow-y:auto;
    transform:translateX(100%);transition:transform .25s ease;
  }
  .nav-link{padding:12px 0;width:100%;font-size:16px;border-bottom:1px solid var(--border)}
  .nav-mobile-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;margin-top:18px;width:100%}
  .nav-mobile-actions .btn{width:100%;justify-content:center}
  .nav-toggle-check:checked ~ .nav .nav-links{transform:translateX(0)}
  .nav-toggle-check:checked ~ .nav .nav-burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle-check:checked ~ .nav .nav-burger span:nth-child(2){opacity:0}
  .nav-toggle-check:checked ~ .nav .nav-burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-toggle-check:checked ~ .nav-overlay{display:block}
}
@media (min-width:1081px){.nav-overlay{display:none !important}}

.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 26px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid transparent;cursor:pointer;font-family:'Manrope',sans-serif}
.btn-sm{padding:11px 18px;font-size:13px}
.btn-primary{background:var(--accent);color:#071427}
.btn-primary:hover{background:#68E2E9}
.btn-ghost{border-color:rgba(255,255,255,0.16);color:var(--text);background:transparent}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}

.chip{display:inline-block;border:1px solid rgba(255,255,255,0.12);color:var(--muted);padding:6px 14px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.5px;text-transform:uppercase}
.tag{display:inline-block;border:1px solid rgba(255,255,255,0.12);color:var(--muted);padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600}
.client-mark{border:1px solid var(--border);color:var(--dim);padding:10px 20px;border-radius:999px;font-family:'Sora',sans-serif;font-weight:700;font-size:14px;white-space:nowrap;display:inline-block}
.client-card{display:inline-flex;align-items:center;gap:10px;border:1px solid var(--border);color:var(--dim);padding:8px 16px 8px 8px;border-radius:999px;font-family:'Sora',sans-serif;font-weight:700;font-size:13px;white-space:nowrap;background:rgba(255,255,255,.02)}
.client-card img{width:30px;height:30px;border-radius:8px;display:block;flex:none}

.card{background:var(--card);border:1px solid var(--border);border-radius:20px;transition:transform .18s ease,border-color .18s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(70,213,222,.4)}

.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}

@media (max-width:900px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
@media (max-width:600px){.grid-2,.grid-3,.grid-4{gap:16px}}

.hero{position:relative;padding:clamp(64px,10vw,120px) 0 clamp(48px,7vw,90px) 0;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;z-index:-1;pointer-events:none;
  background-image:radial-gradient(ellipse 900px 500px at 85% -10%,rgba(91,110,245,.16),transparent 60%),
    radial-gradient(ellipse 700px 500px at 100% 40%,rgba(70,213,222,.10),transparent 60%),
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'%3E%3Cg fill='none' stroke='%23F2A93C' stroke-width='1.4' opacity='0.18'%3E%3Cpath d='M10 10 L60 10 L60 60 L110 60 L110 20'/%3E%3Cpath d='M160 200 L160 140 L110 140 L110 180 L60 180'/%3E%3Cpath d='M200 40 L150 40 L150 90 L200 90'/%3E%3C/g%3E%3Cg fill='%23F2A93C' opacity='0.3'%3E%3Ccircle cx='10' cy='10' r='4'/%3E%3Ccircle cx='60' cy='60' r='4'/%3E%3Ccircle cx='110' cy='20' r='4'/%3E%3Ccircle cx='160' cy='200' r='4'/%3E%3Ccircle cx='60' cy='180' r='4'/%3E%3Ccircle cx='200' cy='40' r='4'/%3E%3Ccircle cx='150' cy='90' r='4'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat:no-repeat,no-repeat,repeat;background-size:auto,auto,220px 220px}
.hero h1{font-size:clamp(32px,5.4vw,60px);line-height:1.1;font-weight:800;letter-spacing:-1.2px;max-width:900px;margin:24px 0 0 0}
.hero p.lead{max-width:620px;font-size:clamp(15px,2vw,18px);color:#ADB2BE;line-height:1.65;margin:26px 0 0 0}
.kicker{display:flex;align-items:center;gap:10px;font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--accent);text-transform:uppercase}
.kicker .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px 2px rgba(70,213,222,.6)}
.stats{display:flex;gap:56px;flex-wrap:wrap;margin-top:70px;padding-top:32px;border-top:1px solid var(--border)}
.stat-num{font-family:'Sora',sans-serif;font-size:36px;font-weight:800;display:block}
.stat-label{font-size:13px;color:var(--dim);font-weight:600}

.marquee-wrap{overflow:hidden;width:100%;padding:24px 0}
.marquee-track{display:flex;gap:20px;width:max-content;animation:marquee 26s linear infinite}
@keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}

.testimonial{background:var(--card);border:1px solid var(--border);border-radius:18px;padding:30px;display:flex;flex-direction:column;gap:16px}
.stars svg{margin-right:2px}

.cta-banner{border-radius:28px;background:linear-gradient(135deg,#0E2A31,#080B1E 65%);border:1px solid rgba(70,213,222,.25);padding:56px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}

.footer{border-top:1px solid var(--border);position:relative;padding-top:60px}
.footer::before{content:'';position:absolute;top:-1px;left:0;width:160px;height:3px;background:linear-gradient(90deg,var(--accent4),var(--accent))}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer-col h4{font-size:13px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:var(--dim);margin:0 0 14px 0}
.footer-col a{display:block;color:#ADB2BE;font-size:14px;margin-bottom:8px;transition:color .15s ease,transform .15s ease}
.footer-col a:hover{color:var(--accent);transform:translateX(3px)}
.footer-bottom{padding:24px 0 40px 0;border-top:1px solid var(--border);display:flex;justify-content:space-between;color:var(--faint);font-size:13px;flex-wrap:wrap;gap:10px}

.faq-item{background:var(--card);border:1px solid var(--border);border-radius:16px;margin-bottom:14px;overflow:hidden}
.faq-item summary{padding:24px 26px;cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'+';color:var(--accent);font-size:20px;font-weight:700}
.faq-item[open] summary::after{content:'−'}
.faq-item .faq-a{padding:0 26px 24px 26px;color:var(--muted);font-size:14.5px;line-height:1.7}

.reason{display:flex;gap:28px;padding:32px 36px;border-radius:20px;background:var(--card);border:1px solid var(--border);align-items:flex-start;margin-bottom:20px}
.reason .num{font-family:'Sora',sans-serif;font-weight:800;font-size:34px;min-width:56px}

.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:18px}
.form-field label{font-size:13px;font-weight:700;color:#C6CAD3}
.form-field input,.form-field select,.form-field textarea{width:100%;box-sizing:border-box;padding:14px 16px;border-radius:10px;background:var(--bg);border:1px solid rgba(255,255,255,.14);color:var(--text);font-family:'Manrope',sans-serif;font-size:14.5px}
.form-field textarea{min-height:100px;resize:vertical}
.tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.tab-btn{font-weight:700;font-size:14px;padding:12px 20px;border-radius:11px;color:#9AA0AE;border:1px solid transparent;background:transparent}
.tab-btn.active{background:var(--card);color:var(--accent);border-color:rgba(70,213,222,.35)}
.alert-success{padding:16px 20px;border-radius:12px;background:rgba(70,213,222,.12);border:1px solid rgba(70,213,222,.35);color:var(--accent);font-weight:600;margin-bottom:20px}
.alert-error{padding:16px 20px;border-radius:12px;background:rgba(255,80,80,.1);border:1px solid rgba(255,80,80,.35);color:#FF9B9B;font-weight:600;margin-bottom:20px}

.chat-panel{display:flex;border:1px solid var(--border);border-radius:22px;overflow:hidden;background:var(--bg-elev)}
.chat-sidebar{width:320px;min-width:280px;padding:28px 22px;border-right:1px solid var(--border);display:flex;flex-direction:column;gap:20px}
.chat-main{flex:1;padding:32px 40px;display:flex;flex-direction:column;gap:20px}
.bubble-user{align-self:flex-end;max-width:70%;background:var(--accent);color:#071427;padding:14px 18px;border-radius:16px 16px 4px 16px;font-weight:600;font-size:14.5px}
.bubble-bot{align-self:flex-start;max-width:70%;background:var(--card);border:1px solid var(--border);padding:14px 18px;border-radius:16px 16px 16px 4px;font-size:14.5px;color:#E4E6EA}
.suggest-chip{padding:12px 16px;border-radius:12px;font-size:13.5px;border:1px solid rgba(255,255,255,.12);color:#9AA0AE}

.icon-badge{width:48px;height:48px;border-radius:13px;display:flex;align-items:center;justify-content:center}

.contact-col-main{flex:2;min-width:340px}
.contact-col-side{flex:1;min-width:300px;display:flex;flex-direction:column;gap:20px}
@media (max-width:760px){
  .contact-col-main,.contact-col-side{flex:1 1 100%;min-width:0;width:100%}
}

/* ======================================================================
   RESPONSIVE — ultra mobile-friendly : tablette (900px), mobile (640px), petit mobile (380px)
   ====================================================================== */
@media (max-width:900px){
  .container{padding:0 24px}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .cta-banner{padding:36px;flex-direction:column;align-items:flex-start;text-align:left}
  .stats{gap:32px;margin-top:44px}
  .chat-panel{flex-direction:column}
  .chat-sidebar{width:100%;min-width:0;border-right:none;border-bottom:1px solid var(--border);flex-direction:row;flex-wrap:wrap;gap:12px}
  .chat-main{padding:24px}
  .bubble-user,.bubble-bot{max-width:88%}
  .reason{padding:24px;gap:18px}
}
@media (max-width:640px){
  .container{padding:0 18px}
  .section{padding:48px 0}
  .section-tight{padding:40px 0}
  .nav{height:72px;padding:0 16px}
  .nav-links{top:72px}
  .nav-logo{padding:6px 10px}
  .nav-logo img{height:24px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .testimonial,.faq-item summary,.reason{padding:20px}
  .cta-banner{padding:28px;border-radius:20px}
  .cta-banner .btn{width:100%;justify-content:center}
  table{display:block;overflow-x:auto;white-space:nowrap}
}
@media (max-width:380px){
  .hero .kicker{font-size:11px}
  .stat-num{font-size:28px}
  .btn{padding:12px 20px;font-size:13px}
}

/* ---------- AI assistant: floating button + modal ---------- */
.ai-fab{position:fixed;right:26px;bottom:26px;z-index:200;width:60px;height:60px;border-radius:50%;border:none;cursor:pointer;
  background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;
  box-shadow:0 12px 30px rgba(70,213,222,.35),0 4px 14px rgba(0,0,0,.35);transition:transform .18s ease,box-shadow .18s ease}
.ai-fab:hover{transform:translateY(-3px);box-shadow:0 16px 36px rgba(70,213,222,.45),0 6px 16px rgba(0,0,0,.4)}
.ai-fab .ai-fab-dot{position:absolute;top:6px;right:6px;width:12px;height:12px;border-radius:50%;background:#F2A93C;border:2px solid var(--bg)}
.ai-fab.is-open .ai-fab-icon-open{display:none}
.ai-fab:not(.is-open) .ai-fab-icon-close{display:none}

.ai-modal-overlay{position:fixed;inset:0;z-index:210;background:rgba(4,6,18,.6);backdrop-filter:blur(3px);
  display:flex;align-items:flex-end;justify-content:flex-end;padding:26px;opacity:0;pointer-events:none;transition:opacity .2s ease}
.ai-modal-overlay.is-open{opacity:1;pointer-events:auto}
.ai-modal{width:400px;max-width:100%;height:min(640px,calc(100vh - 120px));background:var(--bg-elev);border:1px solid var(--border);
  border-radius:22px;display:flex;flex-direction:column;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5);
  transform:translateY(16px) scale(.98);opacity:0;transition:transform .22s ease,opacity .22s ease}
.ai-modal-overlay.is-open .ai-modal{transform:translateY(0) scale(1);opacity:1}
.ai-modal-head{display:flex;align-items:center;gap:12px;padding:18px 20px;border-bottom:1px solid var(--border)}
.ai-modal-head .icon-badge{width:40px;height:40px;border-radius:11px}
.ai-modal-close{margin-left:auto;width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:transparent;
  color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center}
.ai-modal-close:hover{color:var(--text);border-color:rgba(255,255,255,.25)}
.ai-modal-thread{flex:1;overflow-y:auto;padding:18px 20px;display:flex;flex-direction:column;gap:14px}
.ai-modal-suggest{display:flex;flex-wrap:wrap;gap:8px;padding:0 20px 14px 20px}
.ai-modal-suggest .suggest-chip{padding:9px 13px;font-size:12.5px;cursor:pointer;background:transparent;font-family:inherit}
.ai-modal-form{display:flex;align-items:center;gap:10px;background:var(--card);border:1px solid rgba(255,255,255,.12);
  border-radius:999px;padding:6px 6px 6px 18px;margin:0 20px 18px 20px}
.ai-modal-form input{flex:1;background:transparent;border:none;outline:none;color:var(--text);font-family:'Manrope',sans-serif;font-size:14px}
.ai-modal-form button{width:36px;height:36px;min-width:36px;border-radius:50%;background:var(--accent);border:none;
  display:flex;align-items:center;justify-content:center;cursor:pointer}
body.ai-modal-locked{overflow:hidden}
@media (max-width:480px){
  .ai-fab{right:16px;bottom:16px;width:54px;height:54px}
  .ai-modal-overlay{padding:0}
  .ai-modal{width:100%;height:100%;border-radius:0}
}