* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
}

body {
    background: #f1f5f9;
    color: #1e293b;
}

/* ===== HEADER ===== */
header {
    background: linear-gradient(90deg, #0f1d2a, #1e3a8a);
    color: white;
    padding: 30px 20px;
    text-align: center;
}

header h1 {
    font-size: 32px;
    letter-spacing: 2px;
}

/* ===== NAV ===== */
nav {
    background: #e69539; /* tomate elegante */
    display: flex;
    justify-content: center;
    box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li a {
    padding: 15px 25px;
    color: white;
    text-decoration: none;
    font-weight: bold;
   
}

nav ul li a:hover,
.activo {
    background: #4cc9f0; /* celeste */
    color: #0f172a;
}

/* ===== CONTENIDO ===== */
.contenido {
    max-width: 1100px;
    margin: 40px auto;
    padding: 20px;
}

h2 {
    color: #1e3a8a;
    margin-bottom: 15px;
}

/* ===== IMAGEN PRINCIPAL (INICIO) ===== */
.img-ajustada {
    width: 50%;
    max-width: 5000px;
    display: block;
    margin: 20px auto;
    border-radius: 10px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.25);
}

/* ===== TARJETAS ===== */
.tarjeta {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* ===== GALERÍAS ===== */
.galeria {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    align-items: center;
    margin-top: 15px;
}

.galeria img {
    width: 100%;
    height: 160px;
    object-fit: contain;   /* Muestra completa la imagen */
    background: white;
    border-radius: 10px;
    padding: 5px;
}

/* ===== FOOTER ===== */
footer {
    background: #0f172a;
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
    nav ul {
        flex-direction: column;
        text-align: center;
    }

    .img-ajustada {
        width: 70%;
    }
}