/* Base */
:root{
  --bg:#1a1a1a; --bg2:#222; --card:#2a2a2a; --b1:#333; --tx:#fff; --t2:#aaa; --white:#fff; --accent:#0d6efd;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--tx);font-family:Poppins,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;line-height:1.6;scroll-behavior:smooth}
p{font-size:1.05rem}
.section{max-width:1200px;margin:0 auto;padding:100px 20px 60px}
section{scroll-margin-top:80px}

/* Nav */
.navbar{position:fixed;top:0;left:0;right:0;height:60px;display:flex;align-items:center;justify-content:space-between;background:var(--bg);border-bottom:1px solid var(--b1);padding:0 20px;z-index:1000}
.logo img{height:60px}
.nav-links{display:none}
.nav-links li{list-style:none}
.nav-links a{color:var(--tx);text-decoration:none;font-weight:600;padding:8px 15px;display:block}
.nav-links a:hover{color:var(--white)}
.menu-toggle{background:none;border:none;color:var(--tx);font-size:1.5rem;cursor:pointer}

/* Hero */
.accueil-section{
  background: url('assets/assets_task_01k42x9sn3fm3918gd103w0vhm_1756739553_img_0 - copie.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  text-align:center;
  position: relative;
}
.accueil-section::before{
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.2);
  mix-blend-mode: screen;
  z-index: 1;
}
.accueil-content{
  position: relative;
  z-index: 2;
}
.accueil-section h1{
  color:var(--white);
  font-size:2rem;
  margin-bottom:16px;
  font-weight:600;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.8);
}
.accueil-section p{
  font-size:1.2rem;
  margin-bottom:24px;
  text-shadow: 1px 1px 2px rgba(0,0,0,0.8);
}
.hero-badges{
  display:flex;
  gap:10px;
  justify-content:center;
  flex-wrap:wrap;
  margin-top:10px;
  font-size:.95rem;
}
.hero-badges span{
  background:rgba(42,42,42,0.9);
  border:1px solid var(--b1);
  padding:6px 10px;
  border-radius:999px;
  backdrop-filter: blur(10px);
}
.btn-primary{display:inline-block;background:var(--accent);color:var(--white);text-decoration:none;padding:10px 26px;border:none;border-radius:6px;font-weight:600;cursor:pointer;transition:filter .2s}
.btn-primary:hover{filter:brightness(1.1)}

/* About */
.about-section .split{display:grid;grid-template-columns:1fr;gap:30px}
.about-aside .fact{display:flex;gap:12px;background:var(--card);border:1px solid var(--b1);padding:14px;border-radius:8px;margin-bottom:12px}
.about-aside i{color:var(--accent);font-size:1.4rem}
h2{color:var(--white);font-weight:600;margin:0 0 18px}
.checklist{padding-left:18px}
.checklist li{margin-bottom:8px}

/* Architecture */
.archi-section .grid-3{display:grid;grid-template-columns:1fr;gap:20px}
.archi-item{background:var(--card);border:1px solid var(--b1);padding:18px;border-radius:8px;text-align:left}
.archi-item i{color:var(--accent);font-size:1.6rem}

/* Services */
.services-section h2{text-align:center}
.services-grid{display:grid;grid-template-columns:1fr;gap:20px}
.service-card{background:var(--card);border:1px solid var(--b1);border-radius:10px;padding:18px}
.service-card header{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.service-card header i{color:var(--accent);font-size:1.6rem}
.service-card .lead{margin:6px 0 10px}
details{border-top:1px solid var(--b1);margin-top:10px;padding-top:10px}
details summary{cursor:pointer;font-weight:600;color:var(--white)}
details[open] summary{margin-bottom:8px}
.cols{display:grid;grid-template-columns:1fr;gap:14px}
.cols h4{margin:8px 0 6px;color:var(--white)}

/* Trust */
.trust-section h2{text-align:center}
.trust-grid{display:grid;grid-template-columns:1fr;gap:20px}
.trust-item{background:var(--card);border:1px solid var(--b1);padding:18px;border-radius:8px}
.trust-item i{color:var(--accent);font-size:1.6rem}

/* FAQ */
.faq-section h2{text-align:center}
.faq-items details{background:var(--card);border:1px solid var(--b1);border-radius:8px;margin:0 0 12px;padding:14px;border-top:none}
.faq-items summary{cursor:pointer;font-weight:600;color:var(--white)}
.faq-items summary::-webkit-details-marker{display:none}
.faq-items details[open] summary{margin-bottom:8px}

/* Contact */
.contact-section{background:var(--bg2)}
.contact-section h2{text-align:center}
.contact-container{display:grid;grid-template-columns:1fr;gap:24px}
.contact-info i{color:var(--accent);margin-right:8px}
.fine-print{font-size:.85rem;color:var(--tx)}
.form-group{margin-bottom:14px}
.form-group label{display:block;margin-bottom:6px;color:var(--tx)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:10px;background:var(--card);border:1px solid var(--b1);border-radius:6px;color:var(--white)}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(13,110,253,.2)}
.hp-field{position:absolute;left:-5000px}
#form-status{margin-top:10px;font-size:.95rem}
#form-status.ok{color:#7ae582}#form-status.err{color:#ff7b7b}

/* Footer */
footer{background:var(--bg2);text-align:center;padding:20px}
footer p{color:var(--tx);margin:0}

/* Responsive */
@media(min-width:768px){
  .nav-links{display:flex!important}
  .nav-links li{margin-left:16px}
  .menu-toggle{display:none}
  .about-section .split{grid-template-columns:1.1fr .9fr}
  .archi-section .grid-3{grid-template-columns:repeat(3,1fr)}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .cols{grid-template-columns:1fr 1fr}
  .contact-container{grid-template-columns:1fr 1fr}
}
@media(min-width:1100px){
  .services-grid{grid-template-columns:repeat(3,1fr)}
}