:root{
    --navy:#1e2a5a;
    --navy-dark:#141d40;
    --accent:#f59e0b;
    --gray:#9aa3b5;
    --light:#f4f6fa;
    --white:#ffffff;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{color-scheme:light}
  body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:#222;line-height:1.6;background:var(--white)}
  a{text-decoration:none;color:inherit}
  .container{max-width:1100px;margin:0 auto;padding:0 20px}

  /* Header */
  header{position:sticky;top:0;background:var(--white);box-shadow:0 1px 8px rgba(0,0,0,.08);z-index:50}
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.3rem;color:var(--navy);letter-spacing:.5px}
  .brand img{height:46px;width:auto}
  nav ul{display:flex;gap:22px;list-style:none;font-size:.95rem;font-weight:600;color:var(--navy)}
  nav a:hover{color:var(--accent)}
  .btn{display:inline-block;background:var(--accent);color:var(--navy-dark);font-weight:700;padding:10px 22px;border-radius:6px;transition:.2s}
  .btn:hover{filter:brightness(1.1)}
  .btn-outline{background:transparent;border:2px solid var(--white);color:var(--white)}
  .lang{font-weight:700;color:var(--navy);border:1.5px solid #d6dbe8;border-radius:6px;padding:7px 12px;font-size:.85rem;letter-spacing:.5px;display:inline-flex;align-items:center;gap:7px}
  .lang img{height:13px;width:auto;border-radius:2px;display:block}
  .lang:hover{border-color:var(--accent);color:var(--accent)}
  .nav-right{display:flex;align-items:center;gap:12px}

  /* Hero */
  .hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);color:var(--white);padding:90px 0;text-align:left}
  .hero h1{font-size:2.4rem;line-height:1.2;max-width:680px}
  .hero h1 span{color:var(--accent)}
  .hero p{margin:18px 0 30px;max-width:600px;font-size:1.1rem;color:#cdd4e4}
  .hero .ctas{display:flex;gap:14px;flex-wrap:wrap}

  /* Secciones */
  section{padding:70px 0}
  section h2{font-size:1.9rem;color:var(--navy);margin-bottom:8px}
  section .sub{color:#667;margin-bottom:36px;max-width:700px}
  .grid{display:grid;gap:22px}
  .grid-3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
  .grid-4{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}

  .card{background:var(--white);border:1px solid #e3e7ef;border-radius:10px;padding:28px;box-shadow:0 2px 6px rgba(20,29,64,.05);overflow:hidden}
  .card .photo{width:calc(100% + 56px);margin:-28px -28px 18px;height:185px;object-fit:cover;display:block;border-bottom:1px solid #eef1f6}
  .card h3{color:var(--navy);margin-bottom:10px;font-size:1.2rem}
  .card ul{list-style:none;margin-top:10px}
  .card li{padding:4px 0 4px 22px;position:relative;font-size:.95rem;color:#445}
  .card li::before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}
  .card .tag{display:inline-block;background:var(--light);color:var(--navy);font-size:.75rem;font-weight:700;letter-spacing:.5px;padding:4px 10px;border-radius:20px;margin-bottom:12px;text-transform:uppercase}

  .alt{background:var(--light)}

  /* Oil & Gas destacado */
  .oilgas{background:linear-gradient(rgba(15,22,48,.86),rgba(20,29,64,.92)),url('assets/oilgas-bg.jpg') center/cover no-repeat;color:var(--white);padding:90px 0}
  .oilgas h2{color:var(--white);font-size:2.2rem}
  .oilgas .sub{color:#d7dcea;font-size:1.05rem}
  .oilgas .badge{display:inline-block;background:var(--accent);color:var(--navy-dark);font-weight:800;letter-spacing:1.5px;font-size:.8rem;padding:6px 16px;border-radius:20px;margin-bottom:16px;text-transform:uppercase}
  .oilgas .card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.22);box-shadow:none}
  .oilgas .card h3{color:var(--accent)}
  .oilgas .card li{color:#e8ecf6}

  /* Categorías EPP */
  .cat{background:var(--white);border:1px solid #e3e7ef;border-radius:10px;padding:0 14px 18px;text-align:center;font-weight:600;color:var(--navy);font-size:.95rem;overflow:hidden}
  .cat img{width:calc(100% + 28px);margin:0 -14px 12px;height:150px;object-fit:cover;display:block;border-bottom:1px solid #eef1f6}
  .cat img.prod{object-fit:contain;padding:10px 16px;background:var(--white)}
  .cat small{color:#778;font-weight:500}

  /* Sectores */
  .sector{border-left:4px solid var(--accent);background:var(--white);padding:18px 20px;border-radius:0 8px 8px 0;box-shadow:0 1px 4px rgba(20,29,64,.06)}
  .sector h4{color:var(--navy);margin-bottom:6px}
  .sector p{font-size:.92rem;color:#556}

  /* Marcas */
  .brands{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;align-items:stretch}
  .brands span,.brands .logo{background:var(--white);border:1px solid #e3e7ef;border-radius:8px;padding:14px 28px;font-weight:800;font-size:1.05rem;color:var(--navy);letter-spacing:1px;display:flex;align-items:center;justify-content:center}
  .brands .logo img{height:38px;width:auto;max-width:150px;object-fit:contain}

  /* Clientes */
  .clients{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px;align-items:center}
  .clients .client{background:var(--white);border:1px solid #e3e7ef;border-radius:8px;padding:14px;display:flex;align-items:center;justify-content:center;height:80px}
  .clients img{max-height:52px;max-width:100%;object-fit:contain}

  /* Confianza */
  .stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;text-align:center}
  .stats .stat{padding:20px}
  .stats b{display:block;font-size:1.6rem;color:var(--accent)}
  .stats small{color:#cdd4e4}
  .dark{background:var(--navy);color:var(--white)}
  .dark h2{color:var(--white)}

  /* FAQ */
  .faq details{background:var(--white);border:1px solid #e3e7ef;border-radius:8px;padding:14px 20px;margin-bottom:10px}
  .faq summary{font-weight:700;color:var(--navy);cursor:pointer}
  .faq details p{margin-top:8px;color:#445;font-size:.95rem}

  /* Contacto */
  .contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
  .contact-info p{margin-bottom:14px}
  .contact-info b{color:var(--navy)}
  form .field{margin-bottom:14px}
  form label{display:block;font-weight:600;font-size:.9rem;color:var(--navy);margin-bottom:4px}
  form input,form textarea{width:100%;padding:10px;border:1px solid #cfd6e4;border-radius:6px;font:inherit}
  footer{background:var(--navy-dark);color:#aab2c8;padding:30px 0;font-size:.88rem;text-align:center}
  footer b{color:var(--white)}

  @media(max-width:760px){
    nav ul{display:none}
    .nav{height:56px}
    .brand img{height:32px}
    .nav-right{gap:8px}
    .nav-right .btn{padding:8px 12px;font-size:.82rem;white-space:nowrap}
    .lang{padding:6px 10px;font-size:.8rem}
    .hero{padding:50px 0}
    .hero h1{font-size:1.6rem}
    .hero p{font-size:1rem;margin:14px 0 24px}
    section{padding:44px 0}
    section h2{font-size:1.45rem}
    section .sub{margin-bottom:26px}
    .oilgas{padding:56px 0}
    .oilgas h2{font-size:1.6rem}
    .card{padding:20px}
    .card .photo{width:calc(100% + 40px);margin:-20px -20px 16px;height:160px}
    .cat img{height:130px}
    .stats{gap:4px}
    .stats .stat{padding:10px}
    .brands span,.brands .logo{padding:10px 18px}
    .contact-grid{grid-template-columns:1fr}
  }

  /* ---- Páginas de categoría ---- */
  .breadcrumb{font-size:.85rem;color:#778;padding:14px 0}
  .breadcrumb a{color:var(--navy);font-weight:600}
  .breadcrumb a:hover{color:var(--accent)}
  .hero-cat{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);color:var(--white);padding:60px 0}
  .hero-cat h1{font-size:2.1rem;line-height:1.2;max-width:760px}
  .hero-cat h1 span{color:var(--accent)}
  .hero-cat p{margin:16px 0 26px;max-width:680px;font-size:1.08rem;color:#cdd4e4}
  .prose{max-width:820px}
  .prose h2{font-size:1.6rem;color:var(--navy);margin:34px 0 12px}
  .prose h3{font-size:1.2rem;color:var(--navy);margin:22px 0 8px}
  .prose p{margin-bottom:14px;color:#445}
  .prose ul{margin:0 0 16px 22px;color:#445}
  .prose li{margin-bottom:6px}
  .prose p a,.prose li a,.prose td a{color:var(--navy);text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;text-decoration-color:rgba(30,42,90,.4)}
  .prose p a:hover,.prose li a:hover,.prose td a:hover{text-decoration-color:var(--navy)}
  table.specs{width:100%;border-collapse:collapse;margin:18px 0;font-size:.95rem}
  table.specs th,table.specs td{border:1px solid #e3e7ef;padding:10px 12px;text-align:left}
  table.specs th{background:var(--light);color:var(--navy);font-weight:700}
  table.specs tr:nth-child(even) td{background:#fafbfd}
  .cta-band{background:var(--navy);color:var(--white);text-align:center;padding:50px 0}
  .cta-band h2{color:var(--white);margin-bottom:10px}
  .cta-band p{color:#cdd4e4;margin-bottom:22px}
  /* Tarjetas de líneas de negocio 100% clickeables (enlace estirado) */
  #lineas .card,#lines .card{position:relative;transition:box-shadow .2s,transform .2s}
  #lineas .card:hover,#lines .card:hover{box-shadow:0 8px 20px rgba(20,29,64,.13);transform:translateY(-3px)}
  .card a.stretch::after{content:"";position:absolute;top:0;left:0;right:0;bottom:0}