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

/* CUERPO */
body {
    font-family: "Georgia", "Times New Roman", serif;
    background: #f2f2e9;
    color: #111;
    line-height: 1.6;
}

/* CONTENEDOR */
.container {
    max-width: 1100px;
    margin: auto;
    padding: 20px;
    background: #fff;
}

/* CABECERA */
header {
    text-align: center;
    border-bottom: 4px double #000;
    margin-bottom: 20px;
    padding-bottom: 10px;
}

header h1 {
    font-size: 3rem;
    letter-spacing: 2px;
}

header p {
    font-style: italic;
    font-size: 1rem;
}

/* MENÚ */
nav {
    border-top: 1px solid #000;
    border-bottom: 1px solid #000;
    margin: 15px 0;
    padding: 10px 0;
    text-align: center;
}

nav a {
    margin: 0 12px;
    text-decoration: none;
    color: #000;
    font-weight: bold;
}

nav a:hover {
    text-decoration: underline;
}

/* DESCRIPCIÓN */
.description {
    margin: 20px 0;
    font-size: 1.1rem;
    text-align: justify;
}

/* SECCIÓN */
.section-title {
    font-size: 1.8rem;
    border-bottom: 2px solid #000;
    margin-bottom: 15px;
    padding-bottom: 5px;
}

/* ARTÍCULOS EN COLUMNAS */
.article-grid {
    column-count: 3;
    column-gap: 30px;
}

/* ARTÍCULO */
.article {
    break-inside: avoid;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px dashed #999;
}

.article h2 {
    font-size: 1.4rem;
    margin-bottom: 5px;
}

.article .meta {
    font-size: 0.8rem;
    color: #555;
    margin-bottom: 8px;
}

.article p {
    text-align: justify;
    font-size: 1rem;
}

/* PIE */
footer {
    border-top: 3px double #000;
    text-align: center;
    margin-top: 30px;
    padding-top: 10px;
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .article-grid {
        column-count: 2;
    }
}

@media (max-width: 600px) {
    .article-grid {
        column-count: 1;
    }
}