/* Ingeniería Palafox — UI/UX Premium */
:root{
  --orange:#ec6608;
  --orange-dark:#c8540a;
  --orange-soft:#f59445;
  --navy:#1f2a6b;
  --navy-dark:#15205a;
  --ink:#1b1b1b;
  --muted:#5b6470;
  --bg:#ffffff;
  --bg-soft:#f6f7fb;
  --border:#e6e8ee;
  --shadow:0 10px 30px rgba(20,30,80,.08);
  --shadow-lg:0 24px 60px rgba(20,30,80,.18);
  --radius:14px;
  --radius-lg:22px;
  --maxw:1200px;
  --font:'Inter','Segoe UI',system-ui,-apple-system,Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--orange);text-decoration:none;transition:color .2s}
a:hover{color:var(--orange-dark)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* HEADER */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--border);
}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:24px}
.logo img{height:58px;width:auto}
.menu{display:flex;gap:6px;align-items:center;list-style:none;margin:0;padding:0;flex-wrap:wrap}
.menu a{
  color:var(--ink);font-weight:500;font-size:15px;
  padding:10px 14px;border-radius:10px;letter-spacing:.01em;
}
.menu a:hover{background:var(--bg-soft);color:var(--orange)}
.menu a.active{color:var(--orange)}
.menu a.active::after{
  content:"";display:block;height:2px;background:var(--orange);
  margin-top:4px;border-radius:2px;
}
.menu-toggle{display:none;background:none;border:0;font-size:26px;color:var(--ink);cursor:pointer}

/* HERO */
.hero{
  position:relative;
  background:
    radial-gradient(1200px 600px at 90% -10%, rgba(255,255,255,.18), transparent 60%),
    linear-gradient(135deg, var(--orange) 0%, var(--orange-dark) 100%);
  color:#fff;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse at 30% 50%, #000 30%, transparent 75%);
  pointer-events:none;
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr 1.2fr;gap:48px;align-items:center;
  padding:80px 0 96px;
}
.eyebrow{
  text-transform:uppercase;letter-spacing:.18em;font-size:13px;font-weight:600;
  opacity:.9;margin-bottom:18px;
}
.hero h1{
  font-size:clamp(38px,5.2vw,68px);
  line-height:1.05;font-weight:800;margin:0 0 22px;letter-spacing:-.02em;
}
.hero .lead{font-size:19px;opacity:.95;max-width:520px;margin:0 0 32px}
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:16px 30px;border-radius:12px;font-weight:600;font-size:16px;
  transition:transform .15s ease, box-shadow .2s, background .2s;
  border:0;cursor:pointer;
}
.btn-primary{background:#fff;color:var(--orange);box-shadow:0 10px 30px rgba(0,0,0,.15)}
.btn-primary:hover{transform:translateY(-2px);color:var(--orange-dark)}
.btn-solid{background:var(--orange);color:#fff}
.btn-solid:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.btn-outline{border:2px solid #fff;color:#fff;background:transparent}
.btn-outline:hover{background:#fff;color:var(--orange)}

/* Hero gallery */
.hero-gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.hero-gallery .tile{
  border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow-lg);background:#000;
  transform:translateY(0);transition:transform .3s;
}
.hero-gallery .tile:nth-child(2){transform:translateY(28px)}
.hero-gallery .tile:hover{transform:translateY(-6px)}
.hero-gallery .tile:nth-child(2):hover{transform:translateY(22px)}
.hero-gallery img{height:340px;width:100%;object-fit:cover}

/* SECTIONS */
section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-navy{background:linear-gradient(135deg,var(--navy) 0%,var(--navy-dark) 100%);color:#fff}
.section-title{
  font-size:clamp(28px,3.2vw,42px);line-height:1.15;font-weight:800;
  letter-spacing:-.01em;margin:0 0 18px;color:var(--ink);
}
.section-navy .section-title{color:#fff}
.section-kicker{
  display:inline-block;background:rgba(236,102,8,.1);color:var(--orange);
  font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  padding:8px 14px;border-radius:999px;margin-bottom:18px;
}
.section-navy .section-kicker{background:rgba(255,255,255,.12);color:#fff}
.section-lead{font-size:18px;color:var(--muted);max-width:780px}
.section-navy .section-lead{color:rgba(255,255,255,.85)}

/* INTRO CARD (about block on homepage) */
.intro{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start;
}
.intro p{color:var(--muted);font-size:17px}
.pill-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.pill-list li{
  display:flex;align-items:center;gap:14px;font-weight:500;
  padding:14px 18px;background:#fff;border:1px solid var(--border);
  border-radius:12px;box-shadow:var(--shadow);
}
.pill-list li::before{
  content:"";width:10px;height:10px;border-radius:50%;background:var(--orange);flex:0 0 auto;
  box-shadow:0 0 0 4px rgba(236,102,8,.18);
}

/* SERVICES CARDS */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:42px}
.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow);transition:transform .25s, box-shadow .25s;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.card .card-media{height:220px;overflow:hidden}
.card .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.card:hover .card-media img{transform:scale(1.06)}
.card .card-body{padding:26px 26px 28px}
.card h3{margin:0 0 10px;font-size:20px;color:var(--navy);font-weight:700}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .badge{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--orange);margin-bottom:10px;
}

/* CONTACT STRIP */
.contact-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:32px;
}
.contact-card{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.15);
  border-radius:var(--radius-lg);padding:32px;backdrop-filter:blur(6px);
}
.contact-card h4{margin:0 0 6px;font-size:14px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--orange-soft);font-weight:700}
.contact-card .phone{
  display:block;font-size:34px;font-weight:800;color:#fff;margin:8px 0 4px;letter-spacing:-.01em;
}
.contact-card .phone:hover{color:var(--orange-soft)}
.contact-card .city{font-size:16px;opacity:.9}
.contact-card .mail{display:block;margin-top:10px;color:#fff;opacity:.85;font-size:15px}
.contact-card .mail:hover{color:var(--orange-soft);opacity:1}

/* FOOTER */
.site-footer{background:#0e1430;color:rgba(255,255,255,.78);padding:56px 0 24px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:36px}
.footer-grid h5{color:#fff;font-size:13px;letter-spacing:.18em;text-transform:uppercase;margin:0 0 14px}
.footer-grid ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-grid a{color:rgba(255,255,255,.78)}
.footer-grid a:hover{color:#fff}
.footer-logo{background:#fff;padding:14px;border-radius:12px;display:inline-block;margin-bottom:14px}
.footer-logo img{height:48px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;
  color:rgba(255,255,255,.6)
}
.footer-bottom a{color:var(--orange-soft);font-weight:600}
.footer-bottom a:hover{color:#fff}

/* PAGE HEADER (sub pages) */
.page-head{
  background:linear-gradient(135deg,var(--orange) 0%,var(--orange-dark) 100%);
  color:#fff;padding:80px 0 70px;position:relative;overflow:hidden;
}
.page-head::after{
  content:"";position:absolute;right:-80px;top:-80px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 70%);
}
.page-head .crumbs{font-size:13px;letter-spacing:.16em;text-transform:uppercase;opacity:.85;margin-bottom:14px}
.page-head h1{font-size:clamp(34px,4.4vw,56px);margin:0;font-weight:800;letter-spacing:-.02em}

/* CONTENT BLOCKS */
.prose{max-width:820px;font-size:17px;color:#33384a}
.prose h2{font-size:28px;color:var(--navy);margin:48px 0 14px;font-weight:800}
.prose h3{font-size:21px;color:var(--orange-dark);margin:32px 0 10px;font-weight:700}
.prose p{margin:0 0 16px}
.prose strong{color:var(--ink)}
.prose ul{padding-left:0;list-style:none;display:grid;gap:10px;margin:12px 0 22px}
.prose ul li{
  position:relative;padding:10px 14px 10px 36px;background:#fff;border:1px solid var(--border);
  border-radius:10px;
}
.prose ul li::before{
  content:"";position:absolute;left:14px;top:18px;width:8px;height:8px;background:var(--orange);
  border-radius:2px;transform:rotate(45deg);
}

.split{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:start}
.split .media{display:grid;gap:16px}
.split .media img{border-radius:var(--radius);box-shadow:var(--shadow);height:230px;object-fit:cover;width:100%}

.mv-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:28px}
.mv-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow);
}
.mv-card h3{margin:0 0 10px;color:var(--orange);font-size:13px;letter-spacing:.18em;text-transform:uppercase}
.mv-card p{margin:0;color:var(--muted);font-size:16px}
.mv-card .big{display:block;font-size:22px;color:var(--navy);font-weight:700;margin-bottom:10px}

/* GALLERY */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px}
.gallery img{height:240px;object-fit:cover;width:100%;border-radius:var(--radius);box-shadow:var(--shadow)}

/* CONTACT FORM */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px}
.form{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow)}
.form label{display:block;font-size:13px;font-weight:600;color:var(--navy);margin:14px 0 6px;letter-spacing:.04em}
.form input,.form textarea{
  width:100%;padding:14px 16px;border:1px solid var(--border);border-radius:10px;
  font-family:inherit;font-size:15px;color:var(--ink);background:#fff;transition:border .2s, box-shadow .2s;
}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 4px rgba(236,102,8,.15)}
.form textarea{min-height:140px;resize:vertical}
.form .btn{margin-top:22px;width:100%;justify-content:center}

.info-stack{display:grid;gap:18px}
.info-card{
  background:var(--navy);color:#fff;border-radius:var(--radius-lg);padding:26px;
}
.info-card h4{margin:0 0 4px;font-size:13px;letter-spacing:.18em;text-transform:uppercase;color:var(--orange-soft)}
.info-card .phone{display:block;font-size:26px;font-weight:800;color:#fff;margin:8px 0}
.info-card .mail{color:#fff;opacity:.9}

/* RESPONSIVE */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;padding:60px 0 70px}
  .hero-gallery img{height:220px}
  .intro,.split,.contact-grid{grid-template-columns:1fr;gap:32px}
  .cards{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .contact-strip{grid-template-columns:1fr}
  .mv-grid{grid-template-columns:1fr}
}
@media (max-width:680px){
  .menu{display:none;position:absolute;top:84px;left:0;right:0;background:#fff;
    flex-direction:column;align-items:stretch;padding:14px;border-bottom:1px solid var(--border);gap:0}
  .menu.open{display:flex}
  .menu a{padding:14px 16px;border-radius:8px}
  .menu-toggle{display:block}
  .nav{position:relative}
  .cards,.gallery{grid-template-columns:1fr}
  .hero-gallery{grid-template-columns:1fr 1fr}
  .hero-gallery .tile:nth-child(3){display:none}
  .footer-grid{grid-template-columns:1fr}
  section{padding:64px 0}
}