:root{
  --accent:#00aaff;
  --dark:#0f1720;
  --muted:#6b7280;
  --card:#ffffff;
  --bg:#f4f7fb;
}
*{box-sizing:border-box}
body{font-family:Inter,Segoe UI,system-ui,Arial,sans-serif;margin:0;color:var(--dark);background:var(--bg);-webkit-font-smoothing:antialiased}
.container{max-width:1000px;margin:0 auto;padding:1.25rem}
.site-header{background:#fff;border-bottom:1px solid #e6ecf2;position:sticky;top:0;z-index:40}
.header-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:0.75rem;text-decoration:none;color:inherit}
.logo{width:48px;height:48px}
.brand-text{font-weight:700}
#nav-toggle{display:none;background:none;border:0;font-size:1.5rem}
.nav a{margin-left:1rem;text-decoration:none;color:var(--dark)}

.hero{padding:2.5rem 0;background:linear-gradient(90deg, #e6f6ff 0%, #fff 60%)}
.hero-inner{display:flex;gap:2rem;align-items:center}
.hero h1{margin:0;font-size:2rem}
.hero p{color:var(--muted)}
.cta{display:inline-block;margin-top:0.75rem;background:var(--accent);color:#fff;padding:0.6rem 1rem;border-radius:8px;text-decoration:none}
.hero-image{width:220px;border-radius:12px}

/* WhatsApp button */
.whatsapp-btn{display:inline-block;margin-top:0.75rem;background:#25D366;color:#fff;padding:0.6rem 0.9rem;border-radius:8px;text-decoration:none;font-weight:600}
.whatsapp-btn:hover{filter:brightness(.97)}

.whatsapp-fixed{position:fixed;right:18px;bottom:18px;width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;display:flex;align-items:center;justify-content:center;text-decoration:none;box-shadow:0 8px 24px rgba(2,6,23,0.15);font-size:22px;z-index:60}
.whatsapp-fixed:hover{transform:translateY(-3px)}

/* Google Maps */
.maps-container{margin:1.5rem 0;border-radius:8px;overflow:hidden;box-shadow:0 6px 18px rgba(2,6,23,0.08)}
.maps-btn{display:inline-block;margin-right:0.5rem;background:#4285F4;color:#fff;padding:0.6rem 0.9rem;border-radius:8px;text-decoration:none;font-weight:600}
.maps-btn:hover{filter:brightness(.97)}

/* Payment button */
.payment-btn{display:inline-block;margin-left:0.5rem;background:#8b5cf6;color:#fff;padding:0.6rem 0.9rem;border-radius:8px;text-decoration:none;font-weight:600}
.payment-btn:hover{filter:brightness(.97)}

.about,.programs,.tools,.gallery,.partners,.contact{padding:2rem 0}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem}
.card{background:var(--card);padding:1rem;border-radius:10px;box-shadow:0 6px 18px rgba(16,24,40,0.06)}

.tools-list{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.muted{color:var(--muted)}

.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:0.5rem}
.gallery-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:0.5rem}
.gallery-grid img{width:100%;height:120px;object-fit:cover;border-radius:8px;cursor:pointer;border:4px solid #fff;box-shadow:0 6px 16px rgba(2,6,23,0.08)}

/* Carousel styles */
.carousel{position:relative;overflow:hidden;padding:0.5rem 0}
.carousel-track{display:flex;gap:0.5rem;will-change:transform}
.carousel-item{flex:0 0 33.3333%;padding:0 0.25rem}
.carousel-item img{width:100%;height:160px;object-fit:cover;border-radius:8px;display:block}
.carousel .partner-card{display:flex;align-items:center;gap:1rem;background:transparent;padding:0;border-radius:0;box-shadow:none}

.carousel-btn{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255,255,255,0.9);border:0;border-radius:6px;padding:0.4rem 0.6rem;cursor:pointer;box-shadow:0 6px 18px rgba(2,6,23,0.08)}
.carousel-btn.prev{left:8px}
.carousel-btn.next{right:8px}

@media (max-width:1000px){
  .carousel-item{flex:0 0 50%}
}
@media (max-width:600px){
  .carousel-item{flex:0 0 100%}
  .carousel-item img{height:220px}
}

.partner-grid{display:flex;gap:1rem;align-items:center}
.partner-card{display:flex;gap:1rem;align-items:center;background:#fff;padding:0.75rem;border-radius:8px;box-shadow:0 6px 16px rgba(2,6,23,0.06)}
.partner-card img{width:80px;height:80px;object-fit:contain}

.site-footer{padding:1rem 0;text-align:center;color:var(--muted)}

.lightbox{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(3,7,18,0.6);visibility:hidden;opacity:0;transition:opacity .2s}
.lightbox[aria-hidden="false"]{visibility:visible;opacity:1}
.lb-close{position:absolute;top:20px;right:20px;background:#fff;border:0;border-radius:6px;padding:0.4rem 0.6rem}
.lightbox img{max-width:90%;max-height:85%;border-radius:8px}

@media (max-width:800px){
  .hero-inner{flex-direction:column;text-align:center}
  #nav-toggle{display:block}
  .nav{display:none;position:absolute;right:16px;top:64px;background:#fff;padding:0.5rem 1rem;border-radius:8px;box-shadow:0 6px 24px rgba(2,6,23,0.08)}
  .nav a{display:block;margin:0.5rem 0}
}