*{margin:0;padding:0;box-sizing:border-box}
:root{
  --azul:#0050a0; --azul-dark:#003366; --verde:#00a878; --verde-dark:#008060;
  --gris:#f4f6f9; --gris2:#e8edf2; --texto:#2c3e50; --texto-claro:#5a7a9a;
  --blanco:#fff; --sombra:0 2px 12px rgba(0,80,160,0.08);
}
body{font-family:'Segoe UI',system-ui,-apple-system,sans-serif;color:var(--texto);background:var(--gris);line-height:1.6}
a{color:var(--azul);text-decoration:none;transition:color .2s}
a:hover{color:var(--verde)}
img{max-width:100%;height:auto;border-radius:8px}
.container{max-width:1180px;margin:0 auto;padding:0 20px}
/* Header */
header{background:var(--azul-dark);position:sticky;top:0;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.15)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:0 auto;padding:12px 20px}
.logo{color:var(--blanco);font-size:1.4rem;font-weight:700;letter-spacing:-.5px}
.logo span{color:var(--verde)}
nav ul{display:flex;list-style:none;gap:24px;flex-wrap:wrap}
nav a{color:#c5d5e8;font-size:.92rem;font-weight:500}
nav a:hover{color:var(--verde);text-decoration:underline}
.burger{display:none;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer}
/* Hero */
.hero{background:linear-gradient(135deg,var(--azul-dark) 0%,var(--azul) 60%,var(--verde-dark) 100%);color:#fff;padding:60px 20px;text-align:center}
.hero h1{font-size:2.2rem;margin-bottom:12px;max-width:800px;margin-inline:auto}
.hero p{font-size:1.1rem;max-width:680px;margin:0 auto 24px;opacity:.92}
.search-bar{display:flex;max-width:600px;margin:0 auto;gap:0;background:#fff;border-radius:8px;overflow:hidden;box-shadow:0 4px 20px rgba(0,0,0,.2)}
.search-bar input{flex:1;padding:14px 18px;border:none;font-size:1rem;outline:none}
.search-bar button{padding:14px 28px;background:var(--verde);color:#fff;border:none;font-size:1rem;font-weight:600;cursor:pointer}
.search-bar button:hover{background:var(--verde-dark)}
/* Sections */
section{padding:48px 0}
.sec-title{text-align:center;font-size:1.8rem;color:var(--azul-dark);margin-bottom:8px}
.sec-sub{text-align:center;color:var(--texto-claro);margin-bottom:32px;font-size:1rem}
.grid{display:grid;gap:20px}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(260px,1fr))}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}
.grid-2{grid-template-columns:repeat(auto-fill,minmax(400px,1fr))}
.card{background:#fff;border-radius:10px;padding:24px;box-shadow:var(--sombra);transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-3px);box-shadow:0 6px 20px rgba(0,80,160,.15)}
.card h3{color:var(--azul);font-size:1.15rem;margin-bottom:8px}
.card p{color:var(--texto-claro);font-size:.92rem}
.card a{font-weight:600;font-size:.9rem}
.tag{display:inline-block;background:var(--gris2);color:var(--azul);padding:3px 10px;border-radius:20px;font-size:.78rem;font-weight:600;margin-bottom:8px}
/* Job list */
.job-item{background:#fff;border-radius:8px;padding:18px 22px;margin-bottom:12px;box-shadow:var(--sombra);display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px}
.job-item h3{font-size:1.05rem;color:var(--azul-dark)}
.job-item .meta{font-size:.85rem;color:var(--texto-claro)}
.job-item .salario{font-weight:700;color:var(--verde-dark);font-size:.9rem}
/* Article */
.articulo{background:#fff;border-radius:10px;padding:40px;max-width:840px;margin:0 auto;box-shadow:var(--sombra)}
.articulo h1{color:var(--azul-dark);font-size:1.9rem;margin-bottom:8px}
.articulo .fecha{color:var(--texto-claro);font-size:.85rem;margin-bottom:20px}
.articulo p{margin-bottom:16px}
.articulo h2{color:var(--azul);font-size:1.35rem;margin:28px 0 12px}
.articulo h3{color:var(--verde-dark);font-size:1.1rem;margin:22px 0 8px}
.articulo ul{margin:0 0 16px 22px}
.articulo li{margin-bottom:6px}
.articulo img{margin:24px 0;border-radius:10px;box-shadow:var(--sombra)}
.btn{display:inline-block;background:var(--verde);color:#fff;padding:12px 30px;border-radius:8px;font-weight:600;border:none;cursor:pointer;font-size:1rem}
.btn:hover{background:var(--verde-dark);color:#fff}
.btn-azul{background:var(--azul)}
.btn-azul:hover{background:var(--azul-dark)}
/* Contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;max-width:900px;margin:0 auto}
.contact-info p{margin-bottom:10px}
form{background:#fff;padding:30px;border-radius:10px;box-shadow:var(--sombra)}
label{display:block;font-weight:600;margin-bottom:4px;font-size:.9rem}
input[type=text],input[type=email],textarea{width:100%;padding:10px 12px;border:1px solid #ccd;border-radius:6px;font-size:1rem;margin-bottom:16px;font-family:inherit}
textarea{resize:vertical;min-height:120px}
form button{width:100%}
.checkbox-wrap{margin-bottom:16px;font-size:.85rem;color:var(--texto-claro)}
.checkbox-wrap input{width:auto;margin-right:6px}
/* Footer */
footer{background:var(--azul-dark);color:#c5d5e8;padding:40px 0 20px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:30px;max-width:1180px;margin:0 auto;padding:0 20px}
.footer-grid h4{color:#fff;font-size:1rem;margin-bottom:10px}
.footer-grid p{font-size:.85rem;line-height:1.7}
.footer-grid a{color:#c5d5e8;font-size:.85rem;display:block;margin-bottom:4px}
.footer-grid a:hover{color:var(--verde)}
.footer-bottom{text-align:center;padding-top:20px;margin-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:.8rem;color:#8fa4be;max-width:1180px;margin-inline:auto}
/* 404 */
.err404{text-align:center;padding:80px 20px}
.err404 h1{font-size:5rem;color:var(--azul);margin-bottom:10px}
.err404 p{font-size:1.2rem;color:var(--texto-claro);margin-bottom:24px}
/* Responsive */
@media(max-width:768px){
  nav ul{display:none;position:absolute;top:100%;left:0;right:0;background:var(--azul-dark);flex-direction:column;padding:20px;gap:14px}
  nav ul.show{display:flex}
  .burger{display:block}
  .footer-grid{grid-template-columns:1fr;text-align:center}
  .contact-grid{grid-template-columns:1fr}
  .hero h1{font-size:1.6rem}
}