*{margin:0;padding:0;box-sizing:border-box}:root{--primary: #004e92;--secondary: #0073e6;--background: #f5f7fa;--card-bg: #ffffff;--text-color: #222;--link-color: #0055a5;--footer-bg: #1a1a1a}body{font-family:Segoe UI,Arial,sans-serif;background-color:var(--background);color:var(--text-color);line-height:1.6;padding:2rem}.container{max-width:1200px;margin:0 auto;padding:0 1rem}header{text-align:center;margin-bottom:2rem;padding:2rem 1rem;color:#fff;background-image:linear-gradient(135deg,var(--primary),var(--secondary));background-size:cover;background-position:center}h1{font-size:2rem;color:#2c3e50}.card{background:var(--card-bg);border-radius:8px;box-shadow:0 2px 10px #0000001a;padding:1.5rem;margin-bottom:2rem;transition:transform .2s}.card:hover{transform:translateY(-5px)}.card h2{font-size:1.4rem;margin-bottom:.5rem}.card a{color:var(--link-color);text-decoration:none}#empresas-container{display:grid;grid-template-columns:1fr;gap:2rem}@media (min-width: 600px){#empresas-container{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}}footer{text-align:center;margin-top:2rem;padding:1rem 0;background-color:var(--footer-bg);color:#fff}