body{
    font-family: Arial, Helvetica, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f8fb;
    color: #1b1b1b;
    font-size: 1rem;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header{
    background-color: #003b73;
    color: white;
    text-align: center;
    padding: 2rem 1rem;
}

header h1{
    font-size: 40px;
    margin-bottom: 0.5rem;
}

nav{
    background-color: #00509d;
    padding: 1rem;
}

nav ul{
    list-style: none;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 35px;
    padding: 0;
    margin: 0;
}

nav a{
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover,
nav a:focus{
    text-decoration: underline;
    outline: 3px solid #ffcc00;
    outline-offset: 4px;
}

main{
    width: 90%;
    max-width: 1000px;
    margin: 2rem auto;
    padding: 1.5rem;
    background-color: white;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

article{
    padding: 1.2rem;
    border: 1px solid #d6e4f0;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 25px;
}

section,
aside{
    background-color: #eaf4ff;
    padding: 20px;
    border: 2px solid #d6e4f0;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

h1, h2, h3, h4{
    text-align: center;
}

h2{
    font-size: 32px;
}

h3{
    font-size: 26px;
}

h4{
    font-size: 22px;
}

table{
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

caption{
    font-weight: bold;
    margin-bottom: 10px;
}

th{
    background-color: #003b73;
    color: white;
}

th, td{
    border: 1px solid #1b1b1b;
    padding: 0.8rem;
    text-align: center;
}

#Contacto ul{
    display: flex;
    justify-content: space-around;
    gap: 20px;
    list-style: none;
    padding: 0;
}

#Contacto a{
    color: #003b73;
    font-weight: bold;
}

#Contacto a:focus{
    outline: 3px solid #ffcc00;
    outline-offset: 4px;
}

footer{
    background-color: #003b73;
    color: white;
    text-align: center;
    padding: 1rem;
    margin-top: auto;
}

/* Tablet y móvil */
@media screen and (max-width: 768px){

    nav ul{
        flex-direction: column;
        gap: 15px;
    }

    main{
        width: 95%;
        padding: 1rem;
    }

    #Contacto ul{
        flex-direction: column;
        align-items: center;
    }

    table{
        font-size: 14px;
    }
}

/* Móvil */
@media screen and (max-width: 480px){

    header h1{
        font-size: 24px;
    }

    header p{
        font-size: 14px;
    }

    body{
        font-size: 16px;
    }

    h2{
        font-size: 24px;
    }

    h3{
        font-size: 20px;
    }

    table, th, td{
        font-size: 12px;
    }

    section, aside{
        padding: 10px;
    }

    footer{
        font-size: 12px;
    }
}
.fecha-publicacion{
    background-color: #eaf4ff;
    border: 2px solid #d6e4f0;
    border-radius: 12px;
    padding: 12px;
    margin-top: 20px;
    text-align: center;
    font-size: 0.95rem;
    color: #003b73;
}

.fecha-publicacion time{
    font-weight: bold;
    color: #00509d;
}