/* modern.css — Ingas Ingenieria 2026 refresh (industrial / bold). Responsive. */
:root{
  --dark:#0e1620; --dark2:#17232f; --blue:#1f8fd0; --blue-d:#1477b3; --blue-deep:#0d466e;
  --ink:#1b232c; --muted:#5b6b79; --line:#e3e8ed; --bg:#ffffff; --bg2:#f3f6f9; --wrap:1140px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Arial,Helvetica,sans-serif;color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img{max-width:100%;display:block;height:auto}
a{color:var(--blue-d);text-decoration:none}
h1,h2,h3{font-family:Oswald,Arial,sans-serif;font-weight:700;line-height:1.08;text-transform:uppercase;letter-spacing:.5px;margin:0 0 .4em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.kicker{color:var(--blue);font-family:Oswald,sans-serif;text-transform:uppercase;letter-spacing:2px;font-weight:600;font-size:14px;margin-bottom:8px}

/* buttons */
.btn{display:inline-block;font-family:Oswald,sans-serif;text-transform:uppercase;letter-spacing:.5px;font-weight:600;
  padding:13px 26px;border-radius:4px;font-size:15px;cursor:pointer;border:2px solid transparent;transition:background .15s,color .15s}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d);color:#fff}
.btn-ghost{border-color:#fff;color:#fff;margin-left:10px}
.btn-ghost:hover{background:#fff;color:var(--dark)}

/* header */
.site-header{position:sticky;top:0;z-index:50;background:var(--dark);border-bottom:3px solid var(--blue)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo img{height:40px}
.nav{display:flex;gap:26px;align-items:center}
.nav a{color:#dfe7ee;font-family:Oswald,sans-serif;text-transform:uppercase;font-size:15px;letter-spacing:.5px;font-weight:500;padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover,.nav a.active{color:#fff;border-bottom-color:var(--blue)}
.nav-toggle{display:none;background:none;border:0;color:#fff;font-size:28px;line-height:1;cursor:pointer}
.langsw{display:inline-flex;gap:8px;align-items:center;font-family:Oswald,sans-serif;font-size:14px;letter-spacing:.5px;margin-left:6px;padding-left:16px;border-left:1px solid #33414f}
.langsw strong{color:#fff}
.langsw a{color:#8aa0b2;border-bottom:0}
.langsw a:hover{color:#fff}

/* hero */
.hero{position:relative;min-height:74vh;display:flex;align-items:center;color:#fff;overflow:hidden;background:var(--dark)}
.hero-slides{position:absolute;inset:0;z-index:0}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.4s ease}
.hero-slide.active{opacity:1}
.hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(rgba(10,18,26,.58),rgba(10,18,26,.74))}
.hero .wrap{position:relative;z-index:2}
.hero h1{font-size:clamp(34px,6vw,64px);color:#fff;margin-bottom:.25em}
.hero .accent{color:var(--blue)}
.hero p{font-size:clamp(16px,2.2vw,21px);max-width:660px;color:#e6edf3;margin:0 0 30px}

/* sections */
.section{padding:72px 0}
.section.alt{background:var(--bg2)}
.section h2{font-size:clamp(26px,4vw,40px);color:var(--dark)}
.section .lead{color:var(--muted);max-width:740px;font-size:18px}

/* cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;margin-top:38px}
.card{background:#fff;border:1px solid var(--line);border-top:3px solid var(--blue);border-radius:8px;padding:28px;transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 30px rgba(14,22,32,.12)}
.card .ico{font-size:30px}
.card h3{color:var(--dark);font-size:20px;margin:14px 0 8px}
.card p{color:var(--muted);margin:0 0 14px;font-size:15px}
.card a{font-family:Oswald,sans-serif;text-transform:uppercase;font-size:14px;font-weight:600}

/* cta band */
.cta-band{background:var(--dark);color:#fff;padding:60px 0;text-align:center}
.cta-band h2{color:#fff}
.cta-band p{color:#b9c6d1;margin:0 0 26px;font-size:18px}

/* footer */
.site-footer{background:#0a121a;color:#9fb0bd;padding:40px 0;font-size:14px;line-height:1.8}
.site-footer strong{color:#fff;font-family:Oswald,sans-serif;letter-spacing:.5px}
.site-footer a{color:#7fc4ec}

/* responsive */
@media (max-width:820px){
  .nav-toggle{display:block}
  .nav{position:absolute;top:64px;left:0;right:0;background:var(--dark);flex-direction:column;gap:0;padding:6px 0;display:none;border-bottom:3px solid var(--blue)}
  .nav.open{display:flex}
  .nav a{padding:13px 20px;width:100%;border-bottom:1px solid #223140}
  .langsw{margin:0;padding:12px 20px;border-left:0;border-top:1px solid #223140;width:100%}
  .btn-ghost{margin-left:0;margin-top:10px}
  .section{padding:52px 0}
}

/* ---- inner content pages ---- */
.page-hero{background:var(--dark);color:#fff;padding:48px 0;border-bottom:3px solid var(--blue)}
.page-hero .kicker{margin-bottom:6px}
.page-hero h1{color:#fff;font-size:clamp(28px,4.5vw,46px);margin:0}
.content{padding:60px 0}
.content h2{color:var(--dark);font-size:clamp(22px,3vw,30px);margin:0 0 .5em}
.content p{margin:0 0 1em;color:#33414c}
.content a{color:var(--blue-d);font-weight:600}
.feature-img{width:100%;border-radius:8px;border:1px solid var(--line)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;margin:0 0 48px}
.split:last-child{margin-bottom:0}
.split.rev .txt{order:2}
ul.checks{list-style:none;padding:0;margin:0 0 1em}
ul.checks li{position:relative;padding-left:28px;margin-bottom:12px;color:#33414c}
ul.checks li:before{content:"";position:absolute;left:0;top:8px;width:11px;height:11px;background:var(--blue);border-radius:2px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:12px;margin-top:18px}
.gallery a{display:block;border-radius:6px;overflow:hidden;border:1px solid var(--line)}
.gallery img{width:100%;height:130px;object-fit:cover;transition:transform .2s}
.gallery a:hover img{transform:scale(1.06)}
.pills{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 30px;padding:0;list-style:none}
.pills a{display:inline-block;padding:8px 16px;border:1px solid var(--line);border-radius:999px;font-family:Oswald,sans-serif;text-transform:uppercase;font-size:13px;letter-spacing:.5px;color:var(--muted)}
.pills a:hover,.pills a.active{background:var(--blue);color:#fff;border-color:var(--blue)}
@media(max-width:820px){.split{grid-template-columns:1fr;gap:22px}.split.rev .txt{order:0}.content{padding:44px 0}}
/* lightbox */
.gallery a{cursor:zoom-in}
.lightbox{position:fixed;inset:0;background:rgba(8,14,20,.92);display:none;align-items:center;justify-content:center;z-index:100;padding:20px;cursor:zoom-out}
.lightbox.open{display:flex}
.lightbox img{max-width:92vw;max-height:88vh;border-radius:6px;box-shadow:0 10px 40px rgba(0,0,0,.5)}
.lightbox-close{position:absolute;top:14px;right:24px;color:#fff;font-size:42px;line-height:1;cursor:pointer;font-family:Arial,sans-serif}