:root{--bg:#ffffff;--bg2:#f2f5f8;--steel:#ffffff;--line:#d9e1e8;--txt:#1e2a36;--mut:#4f5d6b;--acc:#0b4f8a;--acc2:#0a6aa8;--teal:#0b7378;--ok:#25d366;--r:14px;--max:1200px;font-family:"Barlow",system-ui,-apple-system,Segoe UI,Roboto,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--txt);line-height:1.6;font-size:17px}
img{max-width:100%;display:block}a{color:var(--acc2)}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--teal);outline-offset:3px}
h1,h2,h3{font-family:"Barlow Condensed","Arial Narrow",sans-serif;line-height:1.05;letter-spacing:.01em;text-transform:uppercase;margin:0 0 .5em}
h1{font-size:clamp(2.4rem,6vw,4.6rem)}h2{font-size:clamp(1.9rem,4vw,3rem)}h3{font-size:1.5rem}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:var(--acc);color:#000;padding:8px;z-index:99}
.hazard{height:3px;background:linear-gradient(90deg,var(--acc),var(--teal))}
header.top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt)}.brand svg{flex:none}
.brand b{font-family:"Barlow Condensed",sans-serif;font-size:1.45rem;letter-spacing:.04em;line-height:1}.brand b span{color:var(--acc)}.brand small{display:block;font-size:.7rem;color:var(--mut);letter-spacing:.2em;text-transform:uppercase}
.menu{display:flex;gap:26px;list-style:none;margin:0;padding:0}.menu a{color:var(--txt);text-decoration:none;font-weight:600;font-size:.95rem;text-transform:uppercase;letter-spacing:.06em;padding:6px 0;border-bottom:2px solid transparent}.menu a:hover,.menu a[aria-current]{border-color:var(--acc)}
.burger{display:none;background:none;border:1px solid var(--line);color:var(--txt);border-radius:8px;padding:8px 12px;font-size:1rem}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--acc);color:#fff;font-weight:700;text-decoration:none;padding:14px 24px;border-radius:999px;border:0;font-size:1rem;cursor:pointer;text-transform:uppercase;letter-spacing:.05em;transition:transform .15s,background .15s}.btn:hover{background:var(--acc2);transform:translateY(-2px)}
.btn.ghost{background:transparent;color:var(--acc);border:2px solid var(--acc)}.btn.ghost:hover{background:rgba(11,79,138,.07)}
.hero{position:relative;min-height:min(calc(100vh - 78px),860px);display:flex;align-items:flex-end;overflow:hidden}
.hero picture,.hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 42%,rgba(255,255,255,0) 72%)}
.hero .wrap{position:relative;z-index:2;padding-top:80px;padding-bottom:80px;width:100%}.hero p.lead{font-size:1.25rem;color:var(--mut);max-width:560px}
.kicker{display:inline-block;color:var(--teal);font-weight:700;letter-spacing:.25em;text-transform:uppercase;font-size:.8rem;margin-bottom:14px}
.hero h1 em{font-style:normal;color:var(--acc)}.cta-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px;padding:0;list-style:none}.chips li{border:1px solid var(--line);background:rgba(255,255,255,.9);padding:8px 14px;border-radius:999px;font-size:.9rem;color:var(--txt)}
section{padding:90px 0}.alt{background:var(--bg2)}.sec-head{max-width:720px;margin-bottom:44px}.sec-head p{color:var(--mut)}
.grid{display:grid;gap:22px}.g4{grid-template-columns:repeat(4,1fr)}.g3{grid-template-columns:repeat(3,1fr)}.g2{grid-template-columns:repeat(2,1fr)}
.card{box-shadow:0 2px 10px rgba(30,42,54,.06);background:var(--steel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column;text-decoration:none;color:var(--txt);transition:transform .2s,border-color .2s}
a.card:hover{transform:translateY(-4px);border-color:var(--acc)}.card .ph{aspect-ratio:4/3;overflow:hidden;background:#e6ecf1}.card .ph img{width:100%;height:100%;object-fit:cover;transition:transform .4s}a.card:hover .ph img{transform:scale(1.05)}
.card .bd{padding:20px 22px 24px;flex:1;display:flex;flex-direction:column}.card .bd p{color:var(--mut);margin:0 0 14px;font-size:.98rem}.more{margin-top:auto;color:var(--acc);font-weight:700;text-transform:uppercase;font-size:.85rem;letter-spacing:.08em}
.sector{padding:28px;border-radius:var(--r);background:#fff;box-shadow:0 2px 10px rgba(30,42,54,.05);border:1px solid var(--line);position:relative;overflow:hidden}.sector .ico{width:52px;height:52px;border-radius:12px;background:rgba(14,138,143,.1);display:grid;place-items:center;margin-bottom:16px;color:var(--teal)}.sector p{color:var(--mut);margin:0;font-size:.98rem}
.sector.big{grid-column:span 2;color:#fff;background:linear-gradient(120deg,rgba(8,46,82,.94),rgba(11,79,138,.7)),url(/preview/tanques-combustible/assets/img/horizontal-transporte-960.webp) center/cover}
.steps{counter-reset:s;display:grid;grid-template-columns:repeat(4,1fr);gap:0;list-style:none;padding:0;margin:0}
.steps li{counter-increment:s;padding:26px 22px;border-top:3px solid var(--line);position:relative}.steps li::before{content:"0" counter(s);font-family:"Barlow Condensed",sans-serif;font-size:3rem;font-weight:700;color:var(--teal);display:block;line-height:1;margin-bottom:10px}.steps li:hover{border-color:var(--acc)}.steps p{color:var(--mut);margin:0}
.split{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}.split img{border-radius:var(--r);width:100%;height:100%;object-fit:cover;max-height:560px}
.gal{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:220px;gap:12px}.gal button{padding:0;border:0;background:#dde4ea;border-radius:10px;overflow:hidden;cursor:zoom-in}.gal img{width:100%;height:100%;object-fit:cover;transition:transform .4s,opacity .3s}.gal button:hover img{transform:scale(1.06);opacity:.85}.gal .w2{grid-column:span 2}.gal .h2{grid-row:span 2}
.lb{position:fixed;inset:0;background:rgba(10,30,50,.95);display:none;align-items:center;justify-content:center;z-index:100}.lb.on{display:flex}.lb img{max-width:92vw;max-height:84vh;border-radius:8px}.lb button{position:absolute;background:rgba(255,255,255,.1);color:#fff;border:0;font-size:2rem;width:56px;height:56px;border-radius:50%;cursor:pointer}.lb .x{top:18px;right:18px}.lb .pv{left:18px}.lb .nx{right:18px}.lb p{position:absolute;bottom:18px;left:0;right:0;text-align:center;color:#ccc;margin:0;padding:0 20px}
.cta{background:linear-gradient(110deg,#0b4f8a,#0a6a8f);color:#fff;border-radius:20px;padding:56px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}.cta h2{margin:0}.cta p{margin:6px 0 0;font-size:1.1rem}.cta .btn{background:#fff;color:#0b4f8a}.cta .btn:hover{background:#e8f1f8}
.page-hero{padding:70px 0 50px;background:radial-gradient(ellipse at 85% 0,rgba(14,138,143,.12),transparent 60%),var(--bg2);border-bottom:1px solid var(--line)}.page-hero p{color:var(--mut);max-width:680px;font-size:1.15rem}
.crumbs{font-size:.88rem;color:var(--mut);margin-bottom:12px}.crumbs a{color:var(--mut)}
.prod{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center;padding:60px 0;border-bottom:1px solid var(--line)}.prod:nth-of-type(even) .media{order:2}.prod .media img,.prod .media svg,.split .media img{border-radius:var(--r);width:100%;height:auto;aspect-ratio:4/3;object-fit:cover}
.badge{display:inline-block;background:rgba(11,79,138,.08);color:var(--acc);border:1px solid rgba(11,79,138,.3);padding:6px 12px;border-radius:6px;font-weight:700;font-size:.9rem;margin-bottom:14px}
ul.check{list-style:none;padding:0;margin:0 0 22px}ul.check li{padding-left:28px;position:relative;margin:6px 0;color:var(--txt)}ul.check li::before{content:"";position:absolute;left:0;top:.5em;width:14px;height:8px;border-left:3px solid var(--teal);border-bottom:3px solid var(--teal);transform:rotate(-45deg)}
form.quote{background:var(--steel);border:1px solid var(--line);border-radius:var(--r);padding:32px;display:grid;grid-template-columns:1fr 1fr;gap:18px}form .full{grid-column:1/-1}
label{display:block;font-weight:600;margin-bottom:6px;font-size:.95rem}input,select,textarea{width:100%;padding:13px 14px;border-radius:10px;border:1px solid #8796a5;background:#fff;color:var(--txt);font:inherit}textarea{min-height:110px;resize:vertical}
.hint{font-size:.85rem;color:var(--mut)}.err{color:#b3261e;font-size:.85rem;min-height:1em;display:block}
.info{display:grid;gap:16px}.info div{background:var(--steel);border:1px solid var(--line);border-radius:var(--r);padding:20px}.info b{display:block;color:var(--acc)}
footer{background:var(--bg2);border-top:1px solid var(--line);padding:60px 0 100px;color:var(--mut);font-size:.95rem}footer .grid{grid-template-columns:2fr 1fr 1fr}footer a{color:var(--mut);text-decoration:none}footer a:hover{color:var(--acc)}footer ul{list-style:none;padding:0;margin:0}footer li{margin:6px 0}footer h3{font-size:1.1rem;color:var(--txt)}.legal{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;font-size:.85rem}
.wa{position:fixed;right:22px;bottom:22px;width:62px;height:62px;border-radius:50%;background:var(--ok);display:grid;place-items:center;box-shadow:0 8px 24px rgba(0,0,0,.4);z-index:60;transition:transform .2s}.wa:hover{transform:scale(1.08)}
.mcta{display:none}
.js .reveal{opacity:0;transform:translateY(24px);transition:opacity .7s,transform .7s}.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.reveal{opacity:1;transform:none}}
@media (max-width:960px){.g4,.steps{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:1fr 1fr}.split,.prod{grid-template-columns:1fr;gap:28px}.prod:nth-of-type(even) .media{order:0}.gal{grid-template-columns:repeat(2,1fr);grid-auto-rows:180px}footer .grid{grid-template-columns:1fr}
.burger{display:block}.menu{display:none;position:absolute;top:72px;left:0;right:0;flex-direction:column;background:var(--bg);padding:20px;border-bottom:1px solid var(--line);gap:8px}.menu.open{display:flex}.menu a{display:block;padding:10px 0}}
@media (max-width:640px){body{font-size:16px}section{padding:64px 0}.g4,.g3,.g2,.steps{grid-template-columns:1fr}.sector.big{grid-column:auto}form.quote{grid-template-columns:1fr;padding:22px}.cta{padding:34px 24px}.hero{min-height:min(88vh,760px)}.hero::after{background:linear-gradient(0deg,rgba(255,255,255,.97) 45%,rgba(255,255,255,.55))}
.mcta{display:flex;position:fixed;left:0;right:0;bottom:0;z-index:55;background:#fff;box-shadow:0 -4px 14px rgba(30,42,54,.1);border-top:1px solid var(--line);padding:10px 12px;gap:10px}.mcta a{flex:1;justify-content:center;padding:13px 10px;font-size:.9rem}.wa{bottom:84px;width:54px;height:54px}}
.split.contact{align-items:start;grid-template-columns:1.4fr 1fr}@media (max-width:960px){.split.contact{grid-template-columns:1fr}}
.sector.big h3,.sector.big p{color:#fff}.sector.big .ico{background:rgba(255,255,255,.15);color:#fff}.skip:focus{color:#fff}.menu .btn{color:#fff!important}.hero h1{color:#0f2f4f}
@media (min-width:961px){.hero picture{left:40%;width:60%}.hero::after{background:linear-gradient(90deg,#fff 0%,#fff 40%,rgba(255,255,255,.75) 48%,rgba(255,255,255,0) 62%)}.hero h1{max-width:560px;font-size:clamp(2.4rem,4.6vw,4.2rem)}.hero .chips{max-width:520px}}