/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: "Segoe UI", Tahoma, sans-serif;
    line-height: 1.6;
    color: #1f2d3d;
    background-color: #f4f8fb;
}

/* Hero / Cabecera */
.hero {
    background: linear-gradient(135deg, #0b4f6c, #145da0);
    color: #ffffff;
    padding: 4rem 1.5rem;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Sección presentación */
.presentation {
    max-width: 1000px;
    margin: 4rem auto;
    padding: 0 1.5rem;
    display: flex;
    gap: 3rem;
    align-items: center;
}

/* Placeholder de la foto */
.photo-placeholder {
    width: 250px;
    height: 300px;
    background-color: #d9e6f2;
    border: 2px dashed #7aa7c7;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4a6f8a;
    font-weight: 600;
    flex-shrink: 0;
}

/* Texto presentación */
.presentation-text h2 {
    font-size: 2rem;
    color: #0b4f6c;
    margin-bottom: 1rem;
}

.presentation-text p {
    margin-bottom: 1rem;
    color: #334e68;
}

/* Footer */
footer {
    background-color: #0b4f6c;
    color: #ffffff;
    text-align: center;
    padding: 2rem 1.5rem;
    margin-top: 4rem;
}

footer p {
    margin-bottom: 0.8rem;
    font-size: 0.9rem;
    opacity: 0.9;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    color: #cfe6f7;
    text-decoration: none;
    font-weight: 500;
}

.social-links a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: 3rem 1rem;
    }

    .hero h1 {
        font-size: 2.2rem;
    }

    .presentation {
        flex-direction: column;
        gap: 2rem;
        margin: 2.5rem auto;
        text-align: center;
    }

    .photo-placeholder {
        /* Centrar la imagen en móvil */
        margin: 0 auto;
        /* Asegurar que no se desborde si la pantalla es muy pequeña */
        max-width: 100%;
    }

    .presentation-text h2 {
        font-size: 1.8rem;
    }
}