:root{
  --primary:#02A7EE;
  --primary-700:#0A8BCD;
  --primary-100:#E6F6FE;
  --ink:#0b1b2b;
  --muted:#5e738a;
  --card:#ffffff;
  --bg:#f8fbfe;
  --radius:14px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Arial,sans-serif;color:var(--ink);background:var(--bg);scroll-behavior:smooth}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.row{display:flex;gap:16px}
.row.center{align-items:center}
.row.start{align-items:flex-start}
.row.between{justify-content:space-between}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.section{padding:64px 0}
.topbar{position:sticky;top:0;z-index:20;background:#fff;border-bottom:1px solid #e7eef6}
.brand{gap:10px;text-decoration:none;color:inherit}
.logo{height:80px}
.brand-name{font-weight:700;letter-spacing:.2px}
.nav a{margin:0 8px;text-decoration:none;color:var(--ink);font-weight:600}
.nav a:hover{color:var(--primary)}
.hamburger{display:none;background:none;border:none;cursor:pointer}
.hamburger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
.lang .btn{margin-left:8px}
.hero{padding:56px 0 24px}
.hero-content{padding:48px;border-radius:var(--radius);background:linear-gradient(180deg,var(--primary-100),#fff)}
h1{font-size:clamp(28px,4vw,44px);margin:0 0 12px}
h2{font-size:28px;margin:0 0 16px}
h3{margin:0 0 8px}
p{line-height:1.5}
.muted{color:var(--muted)}
.card{background:var(--card);border:1px solid #e7eef6;border-radius:var(--radius);padding:18px}
.btn{border:1px solid #cfe8fb;border-radius:12px;padding:10px 16px;cursor:pointer;background:#fff;font-weight:700}
.btn.primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.ghost{background:#fff;color:var(--primary);border-color:var(--primary)}
.btn.active{outline:2px solid var(--primary)}
.cta{display:flex;gap:12px;margin-top:10px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}
.gallery img{width:100%;height:160px;object-fit:cover;border-radius:10px;border:1px solid #d5eaf9;cursor:pointer}
.logos .logo-box{background:#fff;border:1px dashed var(--primary);border-radius:12px;height:80px;display:flex;align-items:center;justify-content:center;color:var(--muted);font-weight:700}
.form{flex:1;min-width:300px;background:#fff;border:1px solid #e7eef6;border-radius:var(--radius);padding:18px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
input,textarea{border:1px solid #cfe8fb;border-radius:10px;padding:10px;font-size:16px}
input:focus,textarea:focus{outline:2px solid var(--primary-700);border-color:var(--primary-700)}
.map{flex:1;min-width:300px}
.footer{padding:22px 0;border-top:1px solid #e7eef6;background:#fff}
.backtop{text-decoration:none;color:var(--primary);font-weight:700}
.hidden{display:none}

.lightbox{position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;z-index:30}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:86vh;border-radius:12px;box-shadow:0 10px 30px rgba(0,0,0,.5);background:#fff}
.lightbox-close{position:absolute;top:16px;right:16px;font-size:32px;line-height:1;width:44px;height:44px;border-radius:50%;border:none;background:#fff;color:#000;cursor:pointer}

@media (max-width:900px){
  .grid3{grid-template-columns:1fr 1fr}
  .grid4{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .hamburger{display:block}
  .nav{position:absolute;top:64px;right:16px;background:#fff;border:1px solid #e7eef6;border-radius:12px;padding:10px;display:none;flex-direction:column}
  .nav.open{display:flex}
  .nav a{padding:6px 8px}
}
@media (max-width:640px){
  .row{flex-direction:column}
  .grid3,.grid4{grid-template-columns:1fr}
}


/* Hero top photo */
.hero-media{position:relative;margin:16px auto 0;max-width:1100px;border-radius:14px;overflow:hidden;border:1px solid #d5eaf9}
.hero-media img{width:100%;height:42vh;min-height:260px;max-height:520px;display:block;object-fit:cover}
.hero .hero-content{margin-top:14px}
@media (max-width:640px){ .hero-media img{height:34vh;min-height:200px} }