:root{
  --navy:#031527;
  --navy-2:#062540;
  --blue:#0878e8;
  --blue-soft:#1f9dff;
  --orange:#ff6500;
  --red:#bd2119;
  --white:#fff;
  --ink:#0d223c;
  --muted:#64748b;
  --line:#dbe4ee;
  --surface:#f5f8fc;
  --shadow:0 18px 45px rgba(8,34,65,.13);
  --radius:16px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,sans-serif;color:var(--ink);background:#fff}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{font:inherit}
.wide-container{width:min(94%,1540px);margin-inline:auto}
.topbar{background:#05090e;color:#fff;font-size:.86rem}
.topbar-inner{min-height:38px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar-contact,.topbar-social{display:flex;align-items:center;gap:24px}
.topbar-contact a,.topbar-contact span{opacity:.9}
.topbar i{color:var(--blue-soft);margin-right:7px}
.topbar-social a{font-size:1rem}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.97);box-shadow:0 4px 18px rgba(3,21,39,.08);transition:.25s}
.site-header.scrolled{background:rgba(255,255,255,.9);backdrop-filter:blur(14px)}
.header-inner{height:92px;display:flex;align-items:center;gap:24px}
.brand{flex:0 0 245px}
.brand img{width:220px;height:78px;object-fit:contain}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:27px;text-transform:uppercase;font-weight:800;font-size:.83rem}
.main-nav a{position:relative;padding:35px 0}
.main-nav a::after{content:"";position:absolute;left:0;right:100%;bottom:23px;height:3px;background:var(--blue);transition:.25s}
.main-nav a:hover::after,.main-nav a.active::after{right:0}
.header-cta{background:var(--orange);color:#fff;padding:15px 21px;border-radius:8px;text-transform:uppercase;font-weight:900;font-size:.82rem;box-shadow:0 8px 20px rgba(255,101,0,.25)}
.menu-toggle{display:none;border:0;background:var(--navy);color:#fff;border-radius:8px;width:45px;height:45px}
.hero{position:relative;background:var(--navy);overflow:hidden}
.hero-slider{position:relative;height:540px}
.hero-slide{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .7s ease,visibility .7s;background-size:cover;background-position:center}
.hero-slide.active{opacity:1;visibility:visible}
.slide-gases{background-image:linear-gradient(90deg,rgba(1,12,25,.96) 0%,rgba(1,20,39,.73) 43%,rgba(1,15,30,.2) 75%),url('../../img/slide2.jpg')}
.slide-clark{background-image:linear-gradient(90deg,rgba(1,15,30,.94),rgba(4,51,85,.45)),url('../img/productos/prod6.jpg')}
.slide-insumos{background-image:linear-gradient(90deg,rgba(1,15,30,.94),rgba(4,51,85,.48)),url('../img/productos/prod7.jpg')}
.hero-shade{position:absolute;inset:0;background:radial-gradient(circle at 70% 45%,rgba(14,132,255,.25),transparent 40%),radial-gradient(circle at 90% 80%,rgba(255,101,0,.18),transparent 28%)}
.hero-content{height:100%;display:flex;align-items:center;position:relative;z-index:2}
.hero-copy{width:min(620px,55%);color:#fff}
.eyebrow{display:inline-flex;color:#64b9ff;text-transform:uppercase;font-weight:900;letter-spacing:.12em;margin-bottom:14px}
.hero-copy h1,.hero-copy h2{font-size:clamp(2.6rem,4.6vw,5rem);line-height:1.02;text-transform:uppercase;margin:0 0 20px;letter-spacing:-.045em}
.hero-copy strong{color:var(--blue-soft)}
.slide-gases .hero-copy strong{color:var(--orange)}
.hero-copy p{font-size:1.15rem;line-height:1.7;max-width:620px;color:#e5edf6}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:50px;padding:0 24px;border-radius:7px;color:#fff;font-weight:900;text-transform:uppercase;font-size:.84rem}
.btn-orange{background:var(--orange)}
.btn-blue{background:var(--blue)}
.btn-outline{border:1px solid rgba(255,255,255,.65);background:rgba(0,0,0,.25)}
.slider-arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:5;width:48px;height:48px;border:1px solid rgba(255,255,255,.55);border-radius:50%;background:rgba(0,0,0,.38);color:#fff;cursor:pointer}
.slider-arrow.prev{left:24px}.slider-arrow.next{right:24px}
.slider-dots{position:absolute;bottom:25px;left:50%;transform:translateX(-50%);z-index:6;display:flex;gap:9px}
.slider-dots button{width:11px;height:11px;padding:0;border:2px solid #fff;border-radius:50%;background:transparent;cursor:pointer}
.slider-dots button.active{width:24px;border-radius:10px;background:var(--orange);border-color:var(--orange)}
.benefits{background:linear-gradient(135deg,var(--navy),#06335a);color:#fff}
.benefits-grid{display:grid;grid-template-columns:repeat(6,1fr)}
.benefit{padding:28px 20px;display:flex;gap:14px;align-items:flex-start;border-right:1px solid rgba(255,255,255,.12)}
.benefit:last-child{border-right:0}
.benefit>i{font-size:2.1rem;color:var(--blue-soft)}
.benefit strong{display:block;text-transform:uppercase;font-size:.78rem}
.benefit span{display:block;color:#d8e6f4;font-size:.78rem;line-height:1.5;margin-top:6px}
.section{padding:70px 0}
.section-heading{text-align:center;margin-bottom:34px}
.section-heading span{color:var(--orange);font-weight:900;text-transform:uppercase;letter-spacing:.12em;font-size:.78rem}
.section-heading h2{margin:8px 0 0;text-transform:uppercase;font-size:2rem}
.section-heading.compact{margin-bottom:22px}
.services{background:linear-gradient(180deg,#fff,#f7f9fc)}
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);transition:.28s}
.service-card:hover{transform:translateY(-7px)}
.service-image{height:185px;background-size:cover;background-position:center}
.service-gases{background-image:linear-gradient(rgba(1,20,40,.08),rgba(1,20,40,.08)),url('../img/productos/prod1.jpg')}
.service-medical{background-image:url('../img/productos/prod7.jpg')}
.service-clark{background-image:url('../img/productos/prod6.jpg')}
.service-regulators{background-image:url('../img/productos/prod2.jpg')}
.service-content{padding:24px}
.service-content h3{text-transform:uppercase;margin:0 0 12px;font-size:1.22rem}
.service-content p{color:var(--muted);line-height:1.65;min-height:80px}
.service-content a{display:inline-flex;background:var(--blue);color:#fff;padding:11px 18px;border-radius:6px;font-weight:800;text-transform:uppercase;font-size:.76rem}
.used-cylinders{background:linear-gradient(110deg,#06192c,#0a2c4b 62%,#05213a);color:#fff;margin:0 auto;position:relative;overflow:hidden}
.used-cylinders::after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 80% 40%,rgba(255,101,0,.28),transparent 28%)}
.used-inner{position:relative;z-index:2;min-height:130px;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center}
.recycle{font-size:4rem;color:#fff}
.used-inner h2{text-transform:uppercase;margin:0 0 6px}
.used-inner p{margin:0;color:#dbe8f4}
.products{background:#f7f9fc}
.product-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:15px}
.product-card{background:#fff;border:1px solid var(--line);border-radius:13px;overflow:hidden;box-shadow:0 10px 25px rgba(8,34,65,.08);transition:.25s}
.product-card:hover{transform:translateY(-5px)}
.product-image{height:170px;display:flex;align-items:center;justify-content:center;padding:15px;background:#fff}
.product-image img{width:100%;height:100%;object-fit:contain}
.product-body{padding:14px;text-align:center}
.product-body h3{font-size:.9rem;margin:0 0 12px}
.product-body a{display:flex;align-items:center;justify-content:center;gap:7px;border:1px solid #1fb24b;color:#13963a;border-radius:7px;padding:9px;font-size:.77rem;font-weight:900;text-transform:uppercase}
.brands{padding:55px 0;background:#fff}
.brand-strip{display:grid;grid-template-columns:repeat(6,1fr);gap:15px}
.brand-strip span{min-height:82px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:12px;background:#fff;box-shadow:0 8px 22px rgba(8,34,65,.06);font-size:1.5rem;font-weight:900;color:#155ca7}
.news{background:#f7f9fc}
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;display:grid;grid-template-columns:42% 1fr;box-shadow:0 10px 24px rgba(8,34,65,.07)}
.news-img{min-height:170px;background-size:cover;background-position:center}
.news-gas{background-image:url('../img/productos/prod1.jpg')}
.news-clark{background-image:url('../img/productos/prod6.jpg')}
.news-medical{background-image:url('../img/productos/prod7.jpg')}
.news-industry{background-image:url('../img/productos/prod3.jpg')}
.news-card>div:last-child{padding:18px}
.news-card small{color:var(--blue);font-weight:900;text-transform:uppercase}
.news-card h3{font-size:1rem;margin:8px 0}
.news-card p{font-size:.84rem;color:var(--muted);line-height:1.5}
.footer{background:#050b12;color:#fff;padding-top:58px}
.footer-grid{display:grid;grid-template-columns:1.4fr .8fr 1fr 1.1fr;gap:45px;padding-bottom:45px}
.footer-brand img{width:230px;height:95px;object-fit:contain;background:#fff;border-radius:9px}
.footer p{color:#c5d0dc;line-height:1.65}
.footer h3{text-transform:uppercase;font-size:.95rem}
.footer-grid>div>a{display:block;color:#c5d0dc;margin:9px 0}
.footer-social{display:flex;gap:12px;margin:16px 0}
.footer-social a{width:40px;height:40px;border:1px solid #8593a3;border-radius:50%;display:grid;place-items:center}
.footer-whatsapp{display:inline-flex!important;align-items:center;gap:10px;background:#12b94d;color:#fff!important;padding:14px 16px;border-radius:8px;font-weight:800}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);min-height:65px;display:flex;justify-content:space-between;align-items:center;color:#9aa7b5;font-size:.8rem}
.whatsapp-float{position:fixed;right:22px;bottom:22px;z-index:1000;width:62px;height:62px;border-radius:50%;display:grid;place-items:center;background:#19c657;color:#fff;font-size:2rem;box-shadow:0 12px 30px rgba(0,0,0,.3)}
@media (max-width:1200px){
  .main-nav{gap:15px;font-size:.72rem}
  .brand{flex-basis:200px}.brand img{width:190px}
  .product-grid{grid-template-columns:repeat(4,1fr)}
  .benefits-grid{grid-template-columns:repeat(3,1fr)}
  .service-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:900px){
  .topbar-contact span,.topbar-contact a:nth-child(3){display:none}
  .header-inner{height:78px}
  .menu-toggle{display:grid;place-items:center;margin-left:auto}
  .header-cta{display:none}
  .main-nav{position:absolute;top:78px;left:0;right:0;background:#fff;display:none;flex-direction:column;align-items:stretch;padding:15px 5%;box-shadow:0 20px 30px rgba(0,0,0,.15)}
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 0}
  .main-nav a::after{display:none}
  .hero-slider{height:610px}
  .hero-copy{width:82%}
  .hero-copy h1,.hero-copy h2{font-size:3rem}
  .benefits-grid{grid-template-columns:repeat(2,1fr)}
  .product-grid{grid-template-columns:repeat(3,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .brand-strip{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .topbar-inner{justify-content:center}.topbar-social{display:none}
  .brand img{width:160px;height:65px}.brand{flex-basis:165px}
  .hero-slider{height:650px}
  .hero-copy{width:100%;padding:0 24px}
  .hero-copy h1,.hero-copy h2{font-size:2.35rem}
  .hero-copy p{font-size:1rem}
  .slider-arrow{width:40px;height:40px}
  .slider-arrow.prev{left:8px}.slider-arrow.next{right:8px}
  .benefits-grid,.service-grid,.news-grid,.footer-grid{grid-template-columns:1fr}
  .product-grid{grid-template-columns:repeat(2,1fr)}
  .brand-strip{grid-template-columns:repeat(2,1fr)}
  .used-inner{grid-template-columns:1fr;text-align:center;padding:30px 0}
  .recycle{display:none}
  .footer-bottom{flex-direction:column;justify-content:center;text-align:center;gap:8px;padding:15px 0}
}


/* CATÁLOGO COMPLETO — 75 PRODUCTOS */
.product-extra{display:none}
.product-grid.catalog-open .product-extra{display:block}
.catalog-actions{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:32px
}
.catalog-toggle{
  border:0;
  border-radius:8px;
  background:linear-gradient(135deg,var(--blue),#045db8);
  color:#fff;
  min-height:50px;
  padding:0 25px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-transform:uppercase;
  font-weight:900;
  cursor:pointer;
  box-shadow:0 12px 28px rgba(8,120,232,.23)
}
.catalog-toggle:hover{transform:translateY(-2px)}
.catalog-actions p{margin:0;color:var(--muted);font-size:.86rem}
@media (max-width:620px){.catalog-toggle{width:100%}}