:root {
    --azul: #1A4B6E;
    --verde: #4CAF50;
    --gris: #f4f7f6;
    --blanco: #ffffff;
    --transition: all 0.4s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Poppins', sans-serif; }
body { background: var(--gris); color: #333; line-height: 1.6; overflow-x: hidden; }

/* Navbar Responsive */
header { background: var(--blanco); padding: 15px 5%; position: fixed; width: 100%; top: 0; z-index: 1000; box-shadow: 0 2px 10px rgba(0,0,0,0.1); }
.navbar { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; color: var(--azul); }
.logo span { color: var(--verde); }
.nav-links { display: flex; list-style: none; }
.nav-links li a { text-decoration: none; color: var(--azul); margin: 0 15px; font-weight: 600; }
.burger { display: none; font-size: 1.5rem; cursor: pointer; color: var(--azul); }

/* Hero */
.hero { height: 100vh; background: var(--azul); display: flex; align-items: center; justify-content: center; text-align: center; color: white; padding: 0 20px; }
.hero h1 { font-size: 3rem; margin-bottom: 20px; }
.hero h1 span { color: var(--verde); }
.btn-primary, .btn-secondary { padding: 12px 25px; margin: 10px; border-radius: 5px; text-decoration: none; display: inline-block; font-weight: 600; }
.btn-primary { background: var(--verde); color: white; }
.btn-secondary { border: 2px solid white; color: white; }

/* Grid de Servicios */
section { padding: 80px 10%; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; margin-top: 40px; }
.card { background: white; padding: 40px; border-radius: 15px; text-align: center; box-shadow: 0 5px 15px rgba(0,0,0,0.05); transition: var(--transition); }
.card:hover { transform: translateY(-10px); }
.icon { font-size: 3rem; color: var(--verde); margin-bottom: 20px; }

/* Contacto */
.contact-container { display: flex; flex-wrap: wrap; gap: 40px; justify-content: center; }
#contact-form { flex: 1; min-width: 300px; }
input, textarea { width: 100%; padding: 15px; margin-bottom: 15px; border-radius: 5px; border: 1px solid #ddd; }
.btn-submit { background: var(--azul); color: white; border: none; padding: 15px 30px; cursor: pointer; width: 100%; font-weight: 700; }
.social-icons { display: flex; gap: 20px; margin-top: 20px; font-size: 1.5rem; }
.social-icons a { color: var(--azul); }

/* --- MEDIA QUERIES (Para Celulares) --- */
@media (max-width: 768px) {
    .nav-links { position: absolute; right: 0; height: 92vh; top: 8vh; background: var(--blanco); display: none; flex-direction: column; width: 100%; text-align: center; padding-top: 50px; }
    .nav-links.active { display: flex; }
    .nav-links li { margin: 20px 0; }
    .burger { display: block; }
    .hero h1 { font-size: 2rem; }
}

/* Animaciones de Scroll */
.hidden { opacity: 0; transform: translateY(30px); transition: 0.8s all ease; }
.fade-in { opacity: 1; transform: translateY(0); }