:root{
  --bg:#07070a;
  --surface:#0f1620;
  --muted:#98a0aa;
  --accent:#00b3ff;
  --glass:rgba(255,255,255,0.03);
  --radius:12px;
  --gap:18px;
  --max-width:1200px;
  color-scheme: dark;
}
*{box-sizing:border-box}
html,body{height:100%;margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial}
body{background:var(--bg);color:#e6eef8;line-height:1.45;-webkit-font-smoothing:antialiased}
.container{max-width:var(--max-width);margin:0 auto;padding:40px 20px}
.site-header{position:sticky;top:0;z-index:60;background:linear-gradient(180deg,rgba(11,17,28,0.6),rgba(11,17,28,0.35));backdrop-filter:blur(6px);border-bottom:1px solid rgba(255,255,255,0.03)}
.header-inner{display:flex;align-items:center;gap:16px;padding:14px 20px}
.logo{font-weight:800;font-size:20px;color:var(--accent);text-decoration:none}
.nav{display:flex;gap:18px;margin-left:20px}
.social-icon{display:inline-flex;align-items:center;justify-content:center;margin-left:10px;width:40px;height:40px;border-radius:8px;color:var(--muted);text-decoration:none}
.social-icon svg{display:block}
.social-icon.instagram{border:1px solid rgba(255,255,255,0.03);background:transparent}
.social-icon.instagram:hover{color:var(--accent);box-shadow:0 8px 26px rgba(0,179,255,0.06);border-color:rgba(0,179,255,0.15)}
.nav a{color:var(--muted);text-decoration:none;padding:8px;border-radius:8px}
.nav a:hover{color:#fff}
.nav-toggle{display:none;background:none;border:0;color:var(--muted);font-size:20px}
.header-cta{margin-left:auto}

.hero{min-height:60vh;display:grid;place-items:center;position:relative;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,7,10,0.65),rgba(0,0,0,0.72))}
.hero-slide{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity 1.2s ease;filter:contrast(1.05) saturate(1.05)}
.hero-slide.active{opacity:1}
.hero-overlay{position:absolute;inset:0;z-index:1;background:linear-gradient(120deg,rgba(0,179,255,0.08),rgba(0,0,0,0.2))}
.hero-content{position:relative;z-index:2;text-align:center;padding:80px 16px}
.hero-title{font-size:48px;margin:0 0 10px;font-weight:800;letter-spacing:-1px}
.hero-sub{color:var(--muted);font-size:18px;margin:0 0 20px}
.hero-actions{display:flex;gap:12px;justify-content:center}

.btn-primary{background:linear-gradient(90deg,var(--accent),#00e0ff);color:#071323;border:0;padding:12px 18px;border-radius:10px;font-weight:700;cursor:pointer}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:10px 14px;border-radius:10px;color:var(--muted);text-decoration:none}

.section{padding:64px 0}
.section h2{font-size:28px;margin-bottom:18px}
.grid{display:grid;gap:var(--gap)}

.services-grid{grid-template-columns:repeat(3,1fr)}
.card{background:linear-gradient(180deg,rgba(255,255,255,0.02),rgba(255,255,255,0.01));padding:20px;border-radius:var(--radius);border:1px solid rgba(255,255,255,0.02)}

.catalog .filters{display:flex;gap:10px;margin-bottom:16px}
.filter-btn{background:transparent;border:1px solid rgba(255,255,255,0.03);padding:8px 12px;border-radius:10px;color:var(--muted);cursor:pointer}
.filter-btn.active{border-color:var(--accent);color:var(--accent);box-shadow:0 6px 20px rgba(0,179,255,0.08)}

.product-grid{grid-template-columns:repeat(4,1fr)}
.product-card{background:var(--glass);border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,0.03);transition:transform .28s ease,box-shadow .28s ease}
.product-card:hover{transform:translateY(-8px);box-shadow:0 14px 40px rgba(0,0,0,0.6)}
.product-card img{width:100%;height:180px;object-fit:cover;object-position:center;display:block}
.product-body{padding:14px}
.product-card{cursor:pointer}

.product-detail .back-link{display:inline-flex;margin-bottom:24px;color:var(--muted);text-decoration:none}
.product-detail .back-link:hover{color:#fff}
.product-detail-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.detail-media{display:flex;flex-direction:column;gap:18px}
.detail-carousel-wrapper{position:relative;display:grid}
.detail-carousel{position:relative;display:grid;gap:12px}
.detail-carousel .carousel-slide{width:100%;height:420px;object-fit:cover;border-radius:20px;display:none;background:#10151f;transition:transform .25s ease,box-shadow .25s ease;cursor:pointer}
.detail-carousel .carousel-slide:hover{transform:scale(1.02);box-shadow:0 18px 40px rgba(0,0,0,0.35)}
.detail-carousel .carousel-slide.active{display:block}
.detail-carousel video{width:100%;height:100%;border-radius:20px;background:#000}
.detail-carousel-nav{position:absolute;top:50%;right:18px;transform:translateY(-50%);display:flex;flex-direction:column;gap:10px;z-index:10}
.carousel-arrow{width:42px;height:42px;border-radius:50%;border:1px solid rgba(255,255,255,0.12);background:rgba(0,0,0,0.55);color:#fff;font-size:18px;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease,background .2s ease}
.carousel-arrow:hover{transform:scale(1.05);background:rgba(0,0,0,0.75)}
.carousel-arrow:disabled{opacity:0.4;cursor:not-allowed}
.detail-thumbnails{display:flex;flex-wrap:wrap;gap:10px}
.thumb-btn{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.08);color:var(--muted);padding:10px 14px;border-radius:12px;cursor:pointer}
.thumb-btn.active{border-color:var(--accent);color:#fff;background:rgba(0,179,255,0.12)}
.detail-info{background:var(--glass);padding:24px;border-radius:24px;border:1px solid rgba(255,255,255,0.04)}
.detail-category{margin:0 0 10px;color:var(--accent);font-weight:700}
.detail-title{font-size:34px;margin:0 0 14px}
.detail-price{font-size:24px;font-weight:800;color:var(--accent);margin-bottom:22px}
.detail-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:24px}
.detail-description h2,
.specifications h2{margin-top:0;font-size:22px}
.detail-description p{margin:12px 0 0;color:var(--muted);line-height:1.7}
.specifications{margin-top:24px}
.spec-list{display:grid;gap:12px}
.spec-item{display:grid;grid-template-columns:auto 1fr;gap:8px;align-items:start;padding:14px;border-radius:14px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.04)}
.spec-item dt{font-weight:700;color:#fff}
.spec-item dd{margin:0;color:var(--muted)}
.detail-more{margin-top:40px}
.detail-more p{max-width:780px;color:var(--muted)}

/* Carousel behavior when many products */
.product-grid.carousel-active{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;padding:12px 6px}
.product-grid.carousel-active::-webkit-scrollbar{height:10px}
.product-grid.carousel-active .product-card{min-width:260px;flex:0 0 auto;scroll-snap-align:start;margin-right:16px}
.product-grid.carousel-active .product-card:last-child{margin-right:6px}

/* Carousel controls */
.catalog{position:relative}
.carousel-nav{position:absolute;right:12px;top:50%;transform:translateY(-50%);display:flex;gap:8px;z-index:50}
.carousel-btn{background:rgba(0,0,0,0.5);border:1px solid rgba(255,255,255,0.04);color:var(--muted);padding:8px 10px;border-radius:8px;cursor:pointer}
.carousel-btn:hover{color:#fff;border-color:var(--accent)}
.price{font-weight:700;color:var(--accent)}
.product-footer{display:flex;justify-content:space-between;align-items:center;margin-top:12px}

.gallery-grid{grid-template-columns:repeat(4,1fr)}
.gallery-item img{width:100%;height:180px;object-fit:cover;object-position:center;border-radius:10px;cursor:pointer}

.process-list{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;padding:0;margin:0}
.process-list li{background:var(--surface);padding:18px;border-radius:12px;text-align:center}
.testimonial{padding:18px}

.accordion{max-width:900px}
.acc-toggle{width:100%;text-align:left;padding:14px;border-radius:10px;border:0;background:transparent;color:var(--muted);cursor:pointer}
.acc-panel{display:none;padding:12px 14px;margin-bottom:8px;background:rgba(255,255,255,0.02);border-radius:8px}

.contact-grid{display:grid;grid-template-columns:1fr 320px;gap:24px}
.contact-form label{display:block;margin-bottom:12px}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.04);background:transparent;color:inherit}
.form-actions{display:flex;gap:12px;align-items:center}

.whatsapp-float{position:fixed;right:18px;bottom:18px;background:linear-gradient(90deg,var(--accent),#00e0ff);color:#031223;padding:14px;border-radius:50%;box-shadow:0 10px 30px rgba(0,0,0,0.5);text-decoration:none;font-size:18px}

.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,0.85);z-index:1200}
.lightbox[aria-hidden='false']{display:flex}
.lightbox-img{max-width:90%;max-height:80%;border-radius:10px}
.lightbox-close{position:absolute;top:20px;right:20px;background:transparent;border:0;color:#fff;font-size:28px}

.site-footer{padding:20px 0;background:transparent;border-top:1px solid rgba(255,255,255,0.02);text-align:center;color:var(--muted)}

/* Responsive */
@media(max-width:1000px){.services-grid{grid-template-columns:repeat(2,1fr)}.product-grid{grid-template-columns:repeat(2,1fr)}.gallery-grid{grid-template-columns:repeat(2,1fr)}.process-list{grid-template-columns:repeat(2,1fr)}.contact-grid{grid-template-columns:1fr}}
@media(max-width:640px){.nav{display:none}.nav-toggle{display:block;margin-left:auto}.hero-title{font-size:34px}.product-grid{grid-template-columns:1fr}.gallery-grid{grid-template-columns:1fr}.services-grid{grid-template-columns:1fr}.container{padding:24px}}

/* Accessibility focus */
a:focus,button:focus,input:focus{outline:2px solid rgba(0,179,255,0.25);outline-offset:3px}