:root{
  --primary:#00A6C8; /* Bleu NorthStar */
  --primary-2:#0FD3FF; /* accent néon */
  --primary-dark:#026E88;
  --bg:#f8fdff;
  --text:#0b1b29;
  --muted:#58738a;
  --card:#ffffffcc; /* glass */
  --shadow:0 20px 50px rgba(0,0,0,.10);
  --radius:22px;
}
*{box-sizing:border-box}
html,body{margin:0;font-family:Montserrat,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial,'Noto Sans',sans-serif;color:var(--text);scroll-behavior:smooth;background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;height:auto;transition:opacity 0.3s ease}
.container{width:min(1180px,92%);margin-inline:auto}
/* A11y */
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* Lang switch */
.lang{display:flex;align-items:center;gap:8px}
.lang select{appearance:none;padding:8px 10px;border:1px solid #d6ecf2;border-radius:999px;background:#fff;font-weight:700;color:#046e87}
/* Buttons */
.btn{display:inline-flex;align-items:center;gap:.6rem;background:linear-gradient(90deg,var(--primary),var(--primary-2));color:#fff;padding:14px 22px;border-radius:999px;font-weight:800;box-shadow:0 8px 30px rgba(15,211,255,.35);transition:.18s ease;white-space:nowrap;cursor:pointer;border:none;text-decoration:none;min-height:48px;justify-content:center;touch-action:manipulation}
.btn:hover{transform:translateY(-2px);filter:saturate(115%)}
.btn:active{transform:translateY(0);filter:saturate(90%)}
.btn.outline{background:transparent;color:var(--primary);border:2px solid var(--primary);box-shadow:none}
.btn.outline:hover{background:var(--primary);color:#fff}
.btn.outline:active{background:var(--primary-dark);color:#fff}
/* Header */
header{position:sticky;top:0;z-index:50;background:linear-gradient(180deg,#ffffffea,#ffffffb8);backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid #e6f4f8}
.nav{display:flex;align-items:center;justify-content:space-between;padding:12px 0}
.brand{display:flex;align-items:center;gap:12px;font-weight:800}
.logo-img{width:44px;height:44px;border-radius:50%;object-fit:cover;box-shadow:var(--shadow)}
.nav a{font-weight:600;color:#144256}
.nav ul{display:flex;gap:24px;list-style:none;padding:0;margin:0}

/* Navigation mobile */
.nav-controls{display:flex;align-items:center;gap:16px}
.hamburger{display:none;flex-direction:column;gap:4px;background:none;border:none;cursor:pointer;padding:8px}
.hamburger span{width:24px;height:3px;background:var(--primary);border-radius:2px;transition:all 0.3s ease}
.hamburger[aria-expanded="true"] span:nth-child(1){transform:rotate(45deg) translate(6px,6px)}
.hamburger[aria-expanded="true"] span:nth-child(2){opacity:0}
.hamburger[aria-expanded="true"] span:nth-child(3){transform:rotate(-45deg) translate(6px,-6px)}
/* Futuristic hero */
.hero{position:relative;overflow:hidden;background:radial-gradient(1200px 600px at 10% -10%, #b9f2ff33 0, #fff 60%), radial-gradient(800px 400px at 90% -20%, #00a6c80f 0, #fff 70%)}
.hero:before, .hero:after{content:"";position:absolute;inset:-20%;background:conic-gradient(from 180deg at 50% 50%, transparent 0 20%, #0fd3ff22 20% 40%, transparent 40% 60%, #00a6c822 60% 80%, transparent 80%);filter:blur(30px);animation:spin 24s linear infinite;z-index:0}
.hero:after{animation-direction:reverse;opacity:.6}
@keyframes spin{to{transform:rotate(1turn)}}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:center;padding:46px 0}
.badge{background:#e8fbff;color:#046e87;font-weight:800;border-radius:999px;padding:6px 12px;font-size:.82rem;display:inline-flex;align-items:center;gap:8px;border:1px solid #bfefff}
h1{font-size:clamp(2rem,3.4vw,3.2rem);line-height:1.1;margin:.4rem 0 1rem}
.lead{color:var(--muted);font-size:clamp(1rem,1.2vw,1.12rem);max-width:60ch}
.cta-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:18px}
.hero-card{background:var(--card);padding:18px;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid #dcf6ff}
/* Sections */
section{padding:80px 0}
h2{font-size:clamp(1.5rem,2.4vw,2.2rem);margin:0 0 16px}
.sub{color:var(--muted);margin:0 0 24px}
.features{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature{background:linear-gradient(180deg,#ffffff,#f6fdff);border:1px solid #e6f4f8;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}
.feature h3{margin:.2rem 0 6px;font-size:1.08rem}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.plan{background:linear-gradient(180deg,#ffffff,#f7fcff);border:2px solid #e6f4f8;border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);display:flex;flex-direction:column}
.price{font-size:2.1rem;font-weight:900;background:linear-gradient(90deg,var(--primary),var(--primary-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.chip{display:inline-block;border-radius:999px;background:#ecfdff;color:#06627a;padding:6px 10px;font-weight:800;font-size:.82rem;margin-bottom:10px;border:1px solid #bfefff}
.zones{columns:2;gap:36px}
.zones li{break-inside:avoid}
.card{background:linear-gradient(180deg,#ffffff,#f7fcff);border:1px solid #e6f4f8;border-radius:var(--radius);padding:18px;box-shadow:var(--shadow)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:22px}
/* Map */
.map-embed{width:100%;height:340px;border:0;border-radius:16px;box-shadow:var(--shadow)}
.faq details{background:#fff;border:1px solid #e6f4f8;border-radius:12px;padding:14px 16px;margin-bottom:10px}
.faq summary{cursor:pointer;font-weight:800}

/* Formulaires optimisés mobile */
input, select, textarea{
  font-family:inherit;
  font-size:16px; /* Empêche le zoom sur iOS */
  border:1px solid #d6ecf2;
  border-radius:12px;
  padding:12px;
  transition:all 0.2s ease;
  background:#fff;
  width:100%;
  box-sizing:border-box;
}

input:focus, select:focus, textarea:focus{
  outline:none;
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(0,166,200,0.1);
  transform:scale(1.02);
}

input[type="text"], input[type="email"], input[type="tel"]{
  -webkit-appearance:none;
  appearance:none;
}

select{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%2304667a' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position:right 12px center;
  background-repeat:no-repeat;
  background-size:16px;
  padding-right:40px;
}

label{
  display:block;
  font-weight:600;
  color:#144256;
  margin-bottom:6px;
  font-size:0.95rem;
}
footer{background:#062a36;color:#d2e8ef}
footer a{color:#fff}
.foot{display:grid;grid-template-columns:2fr 1fr 1fr;gap:20px;padding:36px 0}
.copy{border-top:1px solid #0c4655;padding:14px 0;color:#9fd5e3;text-align:center}
/* Icon links */
.icon-link{display:inline-flex;align-items:center;gap:10px}
.icon{width:22px;height:22px;color:#fff;display:inline-block}
.icon-link:hover .icon{filter:brightness(1.1)}
/* Scroll top */
.scroll-top{position:fixed;right:16px;bottom:16px;width:48px;height:48px;border-radius:999px;border:none;cursor:pointer;background:linear-gradient(90deg,var(--primary),var(--primary-2));color:#fff;font-weight:900;font-size:22px;line-height:48px;text-align:center;box-shadow:0 10px 30px rgba(15,211,255,.35);opacity:0;visibility:hidden;transform:translateY(10px);transition:all .25s ease;z-index:60}
.scroll-top:hover{transform:translateY(6px);filter:saturate(115%)}
.scroll-top.show{opacity:1;visibility:visible;transform:translateY(0)}
/* Responsive */
@media (max-width:980px){
  .hero-grid{grid-template-columns:1fr;gap:32px;text-align:center}
  .features{grid-template-columns:repeat(2,1fr);gap:16px}
  .plans{grid-template-columns:1fr;gap:16px}
  .foot{grid-template-columns:1fr;gap:24px}
  .zones{columns:1}
  .cta-row{justify-content:center}
}

@media (max-width:768px){
  .hamburger{display:flex}
  .nav-menu{position:fixed;top:100%;left:0;right:0;background:rgba(255,255,255,0.98);backdrop-filter:blur(10px);border-top:1px solid #e6f4f8;transform:translateY(-100%);opacity:0;visibility:hidden;transition:all 0.3s ease;z-index:40}
  .nav-menu.active{transform:translateY(0);opacity:1;visibility:visible}
  .nav-menu ul{flex-direction:column;gap:0;padding:20px 0}
  .nav-menu li{border-bottom:1px solid #f0f8ff}
  .nav-menu a{display:block;padding:16px 20px;font-size:1.1rem;font-weight:600}
  .nav-menu a:hover{background:#f8fdff;color:var(--primary)}
  .hero{padding:20px 0 40px}
  .hero-grid{padding:20px 0}
  .features{grid-template-columns:1fr;gap:12px}
  .feature{padding:16px;text-align:center}
  .plans{grid-template-columns:1fr;gap:12px}
  .plan{padding:18px;text-align:center}
  .grid-2{grid-template-columns:1fr;gap:16px}
  .card{padding:16px}
  .cta-row{flex-direction:column;align-items:center;gap:8px}
  .btn{width:100%;max-width:280px;justify-content:center;padding:16px 24px;font-size:1rem}
  .btn.outline{width:100%;max-width:280px}
  section{padding:40px 0}
  .container{width:min(100%,92%);padding:0 16px}
  .map-embed{height:240px}
  .zones{columns:1;gap:0}
  .zones li{padding:8px 0;border-bottom:1px solid #f0f8ff;font-size:0.95rem}
  .foot{grid-template-columns:1fr;text-align:center;gap:20px}
  .foot ul{text-align:center}
  h1{font-size:clamp(1.8rem,6vw,2.5rem);line-height:1.2}
  h2{font-size:clamp(1.4rem,5vw,2rem);line-height:1.3}
  .lead{font-size:1rem;line-height:1.5;max-width:100%}
  .sub{font-size:0.95rem;line-height:1.4}
  .price{font-size:1.8rem}
  .chip{font-size:0.8rem;padding:4px 8px}
  .badge{font-size:0.75rem;padding:4px 10px}
  .logo-img{width:36px;height:36px}
  .nav{padding:8px 0}
  .lang select{padding:6px 8px;font-size:0.9rem}
}

@media (max-width:480px){
  .container{padding:0 12px}
  .hero{padding:16px 0 32px}
  .hero-grid{padding:16px 0}
  .btn{padding:14px 20px;font-size:0.95rem}
  .btn.outline{padding:14px 20px;font-size:0.95rem}
  .feature{padding:14px}
  .plan{padding:16px}
  .card{padding:14px}
  .map-embed{height:200px}
  .nav-menu a{padding:14px 16px;font-size:1rem}
  .foot{padding:24px 0}
  .copy{padding:12px 0;font-size:0.9rem}
  h1{font-size:clamp(1.6rem,8vw,2.2rem)}
  h2{font-size:clamp(1.3rem,6vw,1.8rem)}
  .price{font-size:1.6rem}
  .logo-img{width:32px;height:32px}
  .brand span{font-size:0.9rem}
  .nav{padding:6px 0}
  .lang select{padding:5px 6px;font-size:0.85rem}
  .hamburger{padding:6px}
  .hamburger span{width:20px;height:2px}
  .hero-card{padding:14px}
  .features{grid-template-columns:1fr}
  .zones li{font-size:0.9rem;padding:6px 0}
  .faq details{padding:12px 14px;margin-bottom:8px}
  .faq summary{font-size:0.95rem}
  .faq p{font-size:0.9rem;line-height:1.4}
}