:root{
  --brand:#0d5b6e; --brand-dark:#083d4a; --brand-2:#12869c;
  --accent:#d98a2b; --accent-dark:#b6701c;
  --ink:#1b2a2f; --muted:#5a6a70; --line:#e4ebed;
  --bg:#ffffff; --soft:#f4f7f8; --soft-2:#eef3f4;
  --radius:14px; --shadow:0 6px 24px rgba(8,61,74,.08); --shadow-lg:0 14px 40px rgba(8,61,74,.14);
  --wrap:1160px; --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
h1,h2,h3,h4{line-height:1.2;color:var(--ink);margin:0 0 .5em}
h1{font-size:clamp(1.9rem,4vw,3rem);font-weight:800;letter-spacing:-.02em}
h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:700;letter-spacing:-.01em}
h3{font-size:1.2rem;font-weight:700}
p{margin:0 0 1rem}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.section{padding:72px 0}
.section.soft{background:var(--soft)}
.eyebrow{color:var(--brand-2);font-weight:700;text-transform:uppercase;letter-spacing:.14em;font-size:.78rem;margin-bottom:.6rem}
.lead{font-size:1.12rem;color:var(--muted);max-width:70ch}
.center{text-align:center}
.center .lead{margin-left:auto;margin-right:auto}
.btn{display:inline-block;background:var(--accent);color:#fff;font-weight:700;padding:.8rem 1.5rem;border-radius:999px;transition:.2s;border:none;cursor:pointer;font-size:.95rem}
.btn:hover{background:var(--accent-dark);transform:translateY(-1px)}
.btn.ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.6)}
.btn.ghost:hover{background:rgba(255,255,255,.12)}
.btn.dark{background:var(--brand)}
.btn.dark:hover{background:var(--brand-dark)}

/* header */
.site-head{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 22px;max-width:var(--wrap);margin:0 auto}
.brand img{height:44px;width:auto}
.menu{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.menu a{color:var(--ink);font-weight:600;font-size:.93rem;padding:.55rem .8rem;border-radius:8px;transition:.15s;display:block}
.menu a:hover{background:var(--soft-2);color:var(--brand)}
.menu a.active{color:var(--brand)}
.has-sub{position:relative}
.submenu{position:absolute;top:100%;left:0;min-width:210px;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);padding:8px;list-style:none;margin:6px 0 0;opacity:0;visibility:hidden;transform:translateY(6px);transition:.18s}
.has-sub:hover .submenu,.has-sub:focus-within .submenu{opacity:1;visibility:visible;transform:translateY(0)}
.submenu a{font-weight:500;font-size:.9rem}
.nav-cta{display:flex;gap:10px;align-items:center}
.burger{display:none;background:none;border:none;cursor:pointer;padding:8px}
.burger span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}

/* hero */
.hero{position:relative;min-height:78vh;display:flex;align-items:center;color:#fff;overflow:hidden}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.1s ease}
.hero-slide.on{opacity:1}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(6,45,55,.86) 0%,rgba(6,45,55,.55) 45%,rgba(6,45,55,.25) 100%)}
.hero .wrap{position:relative;z-index:2}
.hero h1{color:#fff;max-width:16ch}
.hero p{color:rgba(255,255,255,.9);font-size:1.15rem;max-width:52ch}
.hero .dots{display:flex;gap:8px;margin-top:26px}
.hero .dots button{width:10px;height:10px;border-radius:50%;border:none;background:rgba(255,255,255,.45);cursor:pointer;padding:0}
.hero .dots button.on{background:var(--accent);width:26px;border-radius:6px}

/* page banner */
.pbanner{position:relative;color:#fff;padding:96px 0 60px;background:var(--brand-dark);overflow:hidden}
.pbanner::before{content:"";position:absolute;inset:0;background-size:cover;background-position:center;opacity:.28}
.pbanner .wrap{position:relative;z-index:2}
.pbanner h1{color:#fff;margin:0}
.crumbs{color:rgba(255,255,255,.75);font-size:.85rem;margin-bottom:.5rem}
.crumbs a{color:rgba(255,255,255,.75)}

/* grids & cards */
.grid{display:grid;gap:24px}
.g-3{grid-template-columns:repeat(3,1fr)}
.g-2{grid-template-columns:repeat(2,1fr)}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.2s;display:flex;flex-direction:column}
.card:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.card .ph{aspect-ratio:16/10;background:var(--soft-2) center/cover no-repeat}
.card .bd{padding:22px}
.card h3{margin-bottom:.35rem}
.card p{color:var(--muted);font-size:.95rem;margin:0}
.tag{display:inline-block;background:var(--soft-2);color:var(--brand);font-weight:700;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;padding:.3rem .6rem;border-radius:6px;margin-bottom:.7rem}

/* feature rows */
.frow{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.frow img{border-radius:var(--radius);box-shadow:var(--shadow)}
.frow.rev .txt{order:2}

/* representadas */
.rep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.rep{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.2s;display:flex;flex-direction:column}
.rep:hover{box-shadow:var(--shadow-lg);transform:translateY(-3px)}
.rep .logo{height:78px;display:flex;align-items:center;margin-bottom:14px}
.rep .logo img{max-height:70px;width:auto;object-fit:contain}
.rep .noimg{font-weight:800;font-size:1.5rem;color:var(--brand)}
.rep p{font-size:.9rem;color:var(--muted);margin:0}
.logo-strip{display:flex;flex-wrap:wrap;gap:34px;align-items:center;justify-content:center}
.logo-strip img{max-height:52px;width:auto;filter:grayscale(1);opacity:.65;transition:.2s}
.logo-strip img:hover{filter:none;opacity:1}

/* certs */
.cert{display:grid;grid-template-columns:180px 1fr;gap:28px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:28px;margin-bottom:22px}
.cert img{max-height:120px;width:auto;margin:0 auto}

/* productos */
.cat-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:34px}
.cat-tabs button{border:1px solid var(--line);background:#fff;color:var(--ink);font-weight:600;padding:.6rem 1.2rem;border-radius:999px;cursor:pointer;transition:.15s}
.cat-tabs button.on{background:var(--brand);color:#fff;border-color:var(--brand)}
.catpane{display:none}
.catpane.on{display:block}
.pgroup{margin-bottom:14px;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff}
.pgroup>summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:700;font-size:1.1rem;color:var(--brand);display:flex;justify-content:space-between;align-items:center;background:var(--soft)}
.pgroup>summary::-webkit-details-marker{display:none}
.pgroup>summary::after{content:"+";font-size:1.4rem;color:var(--accent);font-weight:700}
.pgroup[open]>summary::after{content:"\2013"}
.pgroup .inner{padding:8px 22px 22px}
.subcat{margin-top:16px}
.subcat h4{margin:0 0 10px;font-size:.82rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--soft-2);border:1px solid var(--line);color:var(--ink);font-size:.86rem;padding:.4rem .8rem;border-radius:999px;cursor:pointer;transition:.15s}
.chip:hover{background:var(--brand);color:#fff;border-color:var(--brand)}
.empty-note{background:#fff8ee;border:1px solid #f0d9b0;color:#8a5a12;border-radius:var(--radius);padding:22px}

/* modal */
.modal{position:fixed;inset:0;background:rgba(6,45,55,.5);display:none;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal.on{display:flex}
.modal .box{background:#fff;border-radius:var(--radius);max-width:440px;width:100%;padding:30px;box-shadow:var(--shadow-lg)}
.modal h3{color:var(--brand);margin-bottom:.4rem}
.modal .pdesc{color:var(--ink);font-size:.96rem;margin:0 0 6px}
.modal .pend{background:var(--soft);border:1px dashed var(--line);border-radius:10px;padding:12px 14px;color:var(--muted);font-size:.88rem;margin:14px 0}
.modal .x{float:right;border:none;background:none;font-size:1.4rem;cursor:pointer;color:var(--muted);line-height:1}

/* contacto */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.info-line{display:flex;gap:12px;margin-bottom:14px;align-items:flex-start}
.info-line b{color:var(--brand)}
.map{border:0;border-radius:var(--radius);width:100%;min-height:340px;box-shadow:var(--shadow)}

/* footer */
.site-foot{background:var(--brand-dark);color:rgba(255,255,255,.8);padding:56px 0 26px;font-size:.92rem}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:34px}
.site-foot h4{color:#fff;font-size:.95rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:16px}
.site-foot a{color:rgba(255,255,255,.8);display:block;padding:3px 0}
.site-foot a:hover{color:#fff}
.site-foot .logo-f{height:34px;margin-bottom:16px;filter:brightness(0) invert(1)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.15);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:.82rem;color:rgba(255,255,255,.6)}

@media(max-width:900px){
  .g-3,.rep-grid{grid-template-columns:1fr 1fr}
  .frow,.contact-grid{grid-template-columns:1fr;gap:28px}
  .frow.rev .txt{order:0}
  .menu,.nav-cta .btn{display:none}
  .burger{display:block}
  .site-head.open .menu{display:flex;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:12px;gap:2px;align-items:stretch}
  .site-head.open .submenu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;padding-left:14px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
}
@media(max-width:560px){
  .g-3,.rep-grid,.g-2{grid-template-columns:1fr}
  .cert{grid-template-columns:1fr;text-align:center}
  .section{padding:52px 0}
}