:root{
  --bg:#0b0b0b;
  --surface:#161616;
  --panel:#1f1f1f;
  --muted:#9aa0a6;
  --accent:#FFD400;
  --white:#ffffff;
  --border:rgba(255,255,255,0.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter, system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;color:var(--white);background-color:var(--bg);background-image:radial-gradient(circle at top left, rgba(255, 212, 64, 0.08), transparent 25%), radial-gradient(circle at bottom right, rgba(255, 255, 255, 0.05), transparent 18%), linear-gradient(180deg,var(--bg),#070707);}
a{color:inherit}
button, input, textarea{font:inherit}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header{position:sticky;top:0;z-index:10;background:rgba(11,11,11,0.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{color:var(--accent);margin:0;font-size:1.25rem;font-weight:700;text-decoration:none}
.nav{display:flex;flex-wrap:wrap;gap:16px}
.site-logo{height:40px;width:auto;display:inline-block;vertical-align:middle;margin-right:10px;filter: brightness(0) invert(1);}
.nav a{color:var(--muted);text-decoration:none;font-size:0.95rem;transition:color .2s ease}
.nav a:hover{color:var(--white)}
.hero{padding:60px 0;position:relative;overflow:hidden;background-image:linear-gradient(180deg,rgba(11,11,11,0.8),rgba(11,11,11,0.92)),url('https://images.unsplash.com/photo-1494976388531-d1058494cdd8?auto=format&fit=crop&w=1400&q=80');background-size:cover;background-position:center center}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle at 23% 28%, rgba(255,212,64,0.14), transparent 8%),radial-gradient(circle at 42% 22%, rgba(255,255,255,0.08), transparent 7%),radial-gradient(circle at 63% 36%, rgba(255,80,80,0.16), transparent 8%),radial-gradient(circle at 82% 58%, rgba(255,212,64,0.12), transparent 9%);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:1.1fr 420px;gap:32px;align-items:center;position:relative;z-index:1}
.hero-copy{max-width:560px}
.eyebrow{margin:0 0 16px;font-size:0.85rem;text-transform:uppercase;letter-spacing:0.2em;color:var(--accent)}
.hero h1{font-size:clamp(2.5rem,4vw,4rem);line-height:1.05;margin:0 0 18px}
.hero-copy p{max-width:620px;color:var(--muted);margin:0 0 28px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-card{background:var(--panel);padding:28px;border-radius:20px;border:1px solid var(--border);box-shadow:0 20px 50px rgba(0,0,0,0.16)}
.hero-card h2{margin:0 0 18px;font-size:1.25rem}
.feature-list{list-style:none;padding:0;margin:0;color:var(--muted);display:grid;gap:14px}
.feature-list li{line-height:1.7}
.section{padding:60px 0}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:2rem;margin:10px 0 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.shop-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}
.card{background:var(--surface);padding:24px;border-radius:18px;border:1px solid var(--border);transition:transform .25s ease, border-color .25s ease}
.product-cta{position:relative;color:var(--white);min-height:160px;padding:28px;border-radius:18px;display:flex;flex-direction:column;justify-content:center;border:1px solid rgba(0,0,0,0.18);background-image:linear-gradient(180deg,rgba(0,0,0,0.45),rgba(0,0,0,0.45)),url('https://images.unsplash.com/photo-1494976388531-d1058494cdd8?auto=format&fit=crop&w=1400&q=80');background-size:cover;background-position:center;box-shadow:0 12px 30px rgba(0,0,0,0.35)}
.product-cta h3{margin:0 0 8px}
.product-cta .muted{color:rgba(255,255,255,0.85)}
.product-cta .btn{margin-top:12px}
.product-cta .btn.primary{background:var(--accent);color:#111;box-shadow:0 12px 20px rgba(255,212,64,0.18)}

.product-cta.large-cta{position:relative;overflow:hidden;display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:56px;border-radius:18px;min-height:220px;background:linear-gradient(180deg,rgba(0,0,0,0.35),rgba(0,0,0,0.35));border:1px solid rgba(0,0,0,0.22)}
.product-cta.large-cta::before{content:'';position:absolute;inset:0;background-image:url('../images/mercado-ref.jpg');background-size:cover;background-position:center;filter:blur(10px) brightness(0.65);transform:scale(1.08);z-index:0}
.product-cta.large-cta::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,0.4),rgba(0,0,0,0.55));z-index:1}
.product-cta.large-cta > *{position:relative;z-index:2}
.product-cta.large-cta .eyebrow{color:var(--accent);letter-spacing:0.18em;margin-bottom:10px}
.product-cta.large-cta h2{margin:0 0 8px;font-size:1.9rem}
.product-cta.large-cta p{max-width:760px;color:rgba(255,255,255,0.95);margin-bottom:14px}
.product-cta.large-cta .btn{padding:12px 18px}

@media(max-width:880px){
  .product-cta.large-cta{padding:36px;min-height:200px}
  .product-cta.large-cta h2{font-size:1.5rem}
}

@media(max-width:480px){
  .product-cta.large-cta{padding:22px;min-height:180px}
  .product-cta.large-cta h2{font-size:1.25rem}
}
.card:hover{transform:translateY(-4px);border-color:rgba(255,212,64,0.14)}
.card h3{margin-top:0}
.card p{color:var(--muted);line-height:1.75}
.how .steps{list-style:none;padding:0;margin:0;display:grid;gap:18px}
.how .steps li{background:var(--panel);padding:22px;border-radius:16px;border:1px solid var(--border)}
.how .steps strong{display:block;margin-bottom:8px}
.plans .plan-card ul{margin:18px 0 0;padding:0;list-style:none;display:grid;gap:10px;color:var(--muted)}
.plan-price{margin:18px 0 0;font-size:1.45rem;font-weight:700;color:var(--accent)}
.plan-card.featured{background:linear-gradient(180deg,rgba(255,212,64,0.12),var(--surface));border-color:rgba(255,212,64,0.25)}
.faq-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
.faq-item{background:var(--panel);padding:22px;border-radius:18px;border:1px solid var(--border)}
.faq-item h3{margin-top:0}
.contact-form{display:grid;gap:18px;max-width:540px}
.contact-form label{display:block;color:var(--muted);font-size:0.95rem}
.contact-form input,.contact-form textarea{width:100%;padding:14px;border-radius:14px;border:1px solid rgba(255,255,255,0.08);background:#0f0f0f;color:var(--white;)}
.contact-form textarea{min-height:140px;resize:vertical}
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 20px;border-radius:12px;text-decoration:none;border:1px solid transparent;font-weight:600;transition:transform .2s ease, box-shadow .2s ease, background-color .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn.primary{background:var(--accent);color:#111;border-color:rgba(0,0,0,0.18);box-shadow:0 12px 24px rgba(255,212,64,0.18)}
.btn.ghost{background:transparent;color:var(--white);border:1px solid rgba(255,255,255,0.12)}
.site-footer{border-top:1px solid var(--border);padding:24px 0;margin-top:24px}
.footer-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--white)}
@media(max-width:880px){
  .hero-grid{grid-template-columns:1fr}
  .header-inner{flex-direction:row;align-items:center}
  .menu-toggle{display:block}
  .nav{position:fixed;top:64px;right:12px;background:linear-gradient(180deg,rgba(11,11,11,0.98),rgba(11,11,11,0.98));padding:12px;border-radius:12px;box-shadow:0 10px 40px rgba(0,0,0,0.5);display:none;flex-direction:column;min-width:200px}
  .nav.open{display:flex}
  .nav a{padding:10px 6px;margin:0}
  .hero{padding:36px 0}
  .section{padding:28px 0}
  .container{padding:18px}
}
@media(max-width:640px){
  .container{padding:18px}
  .nav{gap:12px}
  .hero h1{font-size:2.5rem}
  .hero-actions{flex-direction:column;align-items:start}
}

@media(max-width:480px){
  .site-logo{height:32px;margin-right:8px}
}

/* Mobile improvements for forms and cards */
@media(max-width:480px){
  .cards{grid-template-columns:1fr}
  .contact-form input,.contact-form textarea{padding:12px}
  .btn{padding:12px 16px}
  .hero h1{font-size:2rem}
}

/* Menu toggle button */
.menu-toggle{display:none;background:transparent;border:0;color:var(--muted);font-size:1.35rem;padding:8px;border-radius:8px}
.menu-toggle[aria-expanded="true"]{color:var(--white)}

/* Accessibility focus */
/* WhatsApp styles */
.nav-whatsapp{color:#25D366;font-weight:700;transition:background .15s ease,color .15s ease;padding:6px 8px;border-radius:8px}
.nav-whatsapp:hover{color:var(--white);background:rgba(37,211,102,0.06)}
.whatsapp-fab{position:fixed;right:20px;bottom:20px;width:56px;height:56px;background:#25D366;border-radius:50%;display:flex;align-items:center;justify-content:center;box-shadow:0 10px 30px rgba(37,211,102,0.12);z-index:1200;transition:transform .18s ease,box-shadow .18s ease}
.whatsapp-fab svg{width:26px;height:26px;display:block}
.whatsapp-fab:hover{transform:translateY(-4px);box-shadow:0 18px 40px rgba(37,211,102,0.18)}
@media(max-width:420px){.whatsapp-fab{right:14px;bottom:14px;width:48px;height:48px}.nav-whatsapp{display:none}}

a:focus{outline:3px solid rgba(255,212,64,0.3);outline-offset:3px}