:root{
  --azul:#00455c;
  --verde:#5b9a88;
  --oscuro:#102532;
  --texto:#51606c;
  --fondo:#f4f8fa;
  --blanco:#ffffff;
  --borde:#dfe9ee;
  --sombra:0 22px 60px rgba(16,37,50,.14);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--fondo);color:var(--oscuro);line-height:1.65}
a{text-decoration:none;color:inherit}
.header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.86);backdrop-filter:blur(18px);border-bottom:1px solid var(--borde)}
.nav{max-width:1180px;margin:auto;padding:16px 22px;display:flex;justify-content:space-between;align-items:center}
.brand{display:flex;gap:12px;align-items:center;font-weight:900;font-size:1.15rem;color:var(--azul)}
.brand-icon{width:42px;height:42px;border-radius:14px;background:var(--azul);color:white;display:grid;place-items:center}
.nav-links{display:flex;gap:26px;align-items:center;font-weight:650}
.nav-button{padding:10px 18px;border-radius:999px;background:var(--azul);color:#fff}
.menu-toggle{display:none;background:none;border:0;cursor:pointer}
.menu-toggle span{display:block;width:26px;height:3px;background:var(--azul);margin:5px;border-radius:5px}
.hero{position:relative;min-height:720px;background:url("assets/normacom-portada.jpeg") center/cover no-repeat;display:flex;align-items:center}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.96) 0%,rgba(255,255,255,.86) 38%,rgba(255,255,255,.25) 100%)}
.hero-content{position:relative;max-width:760px;padding:80px 9%}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:var(--verde);font-weight:900;font-size:.82rem;margin-bottom:12px}
h1{font-size:clamp(3rem,7vw,6.5rem);line-height:.95;color:var(--azul);letter-spacing:-.06em;margin-bottom:24px}
h2{font-size:clamp(2rem,4vw,3.4rem);line-height:1.05;letter-spacing:-.04em;color:var(--azul);margin-bottom:18px}
h3{font-size:1.28rem;margin-bottom:12px;color:var(--azul)}
.hero p{font-size:1.25rem;color:var(--texto);max-width:660px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:999px;padding:14px 24px;font-weight:900;cursor:pointer;transition:.25s}
.btn.primary{background:var(--azul);color:#fff;box-shadow:0 14px 35px rgba(0,69,92,.25)}
.btn.primary:hover{transform:translateY(-2px);background:#00384b}
.btn.secondary{background:#fff;color:var(--azul);border:1px solid var(--borde)}
.section,.split,.timeline-section{max-width:1180px;margin:auto;padding:92px 22px}
.split{display:grid;grid-template-columns:1fr 1.2fr;gap:60px;align-items:start}
.text-block p{margin-bottom:18px;color:var(--texto);font-size:1.08rem}
.section-heading{text-align:center;max-width:780px;margin:0 auto 42px}
.cards{display:grid;gap:22px}
.cards.two{grid-template-columns:repeat(2,1fr)}
.grid{grid-template-columns:repeat(3,1fr)}
.card{background:var(--blanco);border:1px solid var(--borde);border-radius:28px;padding:30px;box-shadow:var(--sombra)}
.card p{color:var(--texto)}
.service span{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:14px;background:#e7f3f1;color:var(--verde);font-weight:900;margin-bottom:18px}
.timeline-section{background:var(--azul);max-width:none;color:#fff}
.timeline-section .section-heading h2{color:#fff}
.timeline{max-width:1180px;margin:auto;display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.timeline div{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:26px;padding:28px}
.timeline strong{font-size:1.6rem;display:block;margin-bottom:8px}
.timeline p{color:#d9eef4}

.section-copy{
  color:var(--texto);
  max-width:760px;
  margin:0 auto;
}
.gallery-section{
  max-width:1240px;
}
.gallery-controls{
  display:flex;
  justify-content:center;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:34px;
}
.filter-btn{
  border:1px solid var(--borde);
  background:#fff;
  color:var(--azul);
  padding:11px 18px;
  border-radius:999px;
  font-weight:900;
  cursor:pointer;
  transition:.25s;
}
.filter-btn:hover,
.filter-btn.active{
  background:var(--azul);
  color:#fff;
  transform:translateY(-2px);
}
.brand-gallery{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.brand-card{
  position:relative;
  overflow:hidden;
  min-height:230px;
  background:linear-gradient(145deg,#ffffff,#eef6f8);
  border:1px solid var(--borde);
  border-radius:28px;
  padding:24px;
  box-shadow:0 16px 44px rgba(16,37,50,.10);
  cursor:pointer;
  transition:.3s ease;
}
.brand-card::after{
  content:"";
  position:absolute;
  width:150px;
  height:150px;
  right:-50px;
  top:-50px;
  border-radius:50%;
  background:rgba(91,154,136,.14);
  transition:.3s ease;
}
.brand-card:hover{
  transform:translateY(-8px);
  box-shadow:0 26px 70px rgba(16,37,50,.18);
}
.brand-card:hover::after{
  transform:scale(1.35);
}
.brand-visual{
  width:76px;
  height:76px;
  border-radius:24px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,var(--azul),var(--verde));
  color:#fff;
  font-size:1.45rem;
  font-weight:1000;
  letter-spacing:-.04em;
  margin-bottom:18px;
  position:relative;
  z-index:1;
}
.brand-card h3,
.brand-card p{
  position:relative;
  z-index:1;
}
.brand-card p{
  color:var(--texto);
}
.brand-card.hide{
  display:none;
}
@media(max-width:1050px){
  .brand-gallery{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:760px){
  .brand-gallery{grid-template-columns:1fr}
}

.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.value-grid div{background:white;border:1px solid var(--borde);border-radius:22px;padding:22px;font-weight:900;color:var(--azul);text-align:center}
.contact{padding:96px 22px;background:linear-gradient(135deg,#eaf4f6,#ffffff)}
.contact-box{max-width:820px;margin:auto;background:#fff;border-radius:34px;padding:42px;box-shadow:var(--sombra)}

.contact-info{
  margin:24px 0 10px;
  display:grid;
  gap:8px;
  color:var(--texto);
}
.contact-info strong{
  color:var(--azul);
}
.contact-info a{
  color:var(--verde);
  font-weight:900;
}

form{display:grid;gap:14px;margin-top:24px}
input,textarea{width:100%;border:1px solid var(--borde);border-radius:18px;padding:15px 16px;font:inherit;color:var(--oscuro);background:#fbfdfe}
input:focus,textarea:focus{outline:3px solid rgba(91,154,136,.18);border-color:var(--verde)}
.form-message{font-weight:800;color:var(--verde)}
footer{text-align:center;padding:34px 22px;background:var(--oscuro);color:#c9d8df}
@media(max-width:850px){
  .menu-toggle{display:block}
  .nav-links{position:absolute;top:75px;left:18px;right:18px;background:#fff;border:1px solid var(--borde);border-radius:24px;padding:22px;box-shadow:var(--sombra);display:none;flex-direction:column;align-items:flex-start}
  .nav-links.active{display:flex}
  .hero{min-height:640px;background-position:center right}
  .hero-content{padding:70px 24px}
  .split,.cards.two,.grid,.timeline,.value-grid{grid-template-columns:1fr}
  h1{font-size:3.2rem}
}