* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Poppins', sans-serif; background: #fff; line-height: 1.6; color: #333; }
.container { max-width: 1100px; margin: auto; padding: 0 20px; }

/* Header */
header { background: #fff; padding: 15px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 1000; }
nav { display: flex; justify-content: space-between; align-items: center; }
.logo img { height: 50px; }
.nav-links { display: flex; list-style: none; }
.nav-links li { margin-left: 20px; }
.nav-links a { text-decoration: none; color: #0a2e5c; font-weight: 600; }
.btn-nav { background: #0a2e5c; color: #fff !important; padding: 8px 20px; border-radius: 5px; }

/* Hero Section */
.hero { 
    background: linear-gradient(rgba(10,46,92,0.85), rgba(10,46,92,0.85)), url('https://images.unsplash.com/photo-1541339906962-d000263fbd53?auto=format&fit=crop&w=1350&q=80');
    background-size: cover; padding: 80px 0; color: #fff; min-height: 500px;
}
.hero-grid { display: flex; flex-wrap: wrap; gap: 40px; align-items: center; }
.hero-text { flex: 1; min-width: 300px; }
.hero-text h1 { font-size: 3rem; margin-bottom: 20px; font-family: 'Montserrat', sans-serif; }
.hero-btns .btn-primary { background: #fbc02d; color: #000; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: 700; display: inline-block; margin-right: 15px; }
.btn-whatsapp-hero { background: #25d366; color: #fff; padding: 12px 25px; text-decoration: none; border-radius: 5px; font-weight: 700; }

/* Formulario */
.hero-form-box { flex: 0 0 380px; background: #fff; border-radius: 10px; color: #333; padding: 30px; box-shadow: 0 10px 25px rgba(0,0,0,0.2); }
.legal-text { font-size: 0.8rem; color: #666; margin-bottom: 20px; text-align: center; }
.hero-form-box input, .hero-form-box select { width: 100%; padding: 12px; margin-bottom: 15px; border: 1px solid #ddd; border-radius: 5px; }
.btn-submit { width: 100%; background: #0a2e5c; color: #fff; padding: 15px; border: none; border-radius: 5px; font-weight: 700; cursor: pointer; }

/* Oferta Cards - AQUÍ ESTABA EL ERROR */
.oferta { padding: 60px 0; }
.section-title { text-align: center; margin-bottom: 40px; font-size: 2.2rem; color: #0a2e5c; }
.cards-grid { display: flex; flex-wrap: wrap; gap: 20px; justify-content: center; }
.card { background: #fff; border: 1px solid #eee; border-radius: 10px; overflow: hidden; width: calc(50% - 20px); min-width: 300px; box-shadow: 0 5px 15px rgba(0,0,0,0.05); }
.card img { width: 100%; height: 250px; object-fit: cover; display: block; }
.card-body { padding: 20px; text-align: center; }

/* WhatsApp Float */
.whatsapp-float { position: fixed; bottom: 20px; right: 20px; background: #25d366; color: white; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; z-index: 1000; text-decoration: none; }

/* Footer */
footer { background: #0a2e5c; color: #fff; padding: 30px 0; text-align: center; margin-top: 40px; }

/* Mobile Responsivo */
@media (max-width: 768px) {
    .hero-text h1 { font-size: 2.2rem; }
    .hero-form-box { flex: 1 0 100%; }
    .card { width: 100%; }
}