.hero {
    height: 70vh;
    background: linear-gradient(180deg, #111, #000);
}

.card-dark {
    background: #1a1a1a;
    border: 1px solid #333;
    color: #ddd;
}

.card-dark:hover {
    border-color: #0d6efd;
    transform: translateY(-3px);
    transition: 0.2s;
}
.project-hero {
    height: 60vh;
    background: linear-gradient(180deg, #111, #000);
    border-bottom: 1px solid #222;
}
.about-hero {
    height: 45vh;
    background: linear-gradient(180deg, #111, #000);
    border-bottom: 1px solid #222;
}
.services-hero {
    height: 45vh;
    background: linear-gradient(180deg, #111, #000);
    border-bottom: 1px solid #222;
}
.contact-hero {
    height: 45vh;
    background: linear-gradient(180deg, #111, #000);
    border-bottom: 1px solid #222;
}
/* Ajustes responsive para móviles */
@media (max-width: 768px) {
    .hero {
        height: auto;
        padding: 60px 0;
        text-align: center;
    }

    .project-hero,
    .about-hero,
    .services-hero,
    .contact-hero {
        height: auto;
        padding: 50px 0;
        text-align: center;
    }
}