:root {
    --primary-blue: #007bff; /* Vibrant Blue */
    --secondary-blue: #0056b3; /* Darker Blue for hover/active */
    --light-blue: #e9f5ff; /* Very light blue for backgrounds */
    --dark-text: #333;
    --light-text: #f8f9fa;
    --border-color: #dee2e6;
    --header-height: 80px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--dark-text);
    background-color: #f4f7f6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Header --- */
.site-header {
    background-color: var(--primary-blue);
    color: var(--light-text);
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap; /* Permite que los elementos se envuelvan en pantallas pequeñas */
}

.logo a {
    color: var(--light-text);
    text-decoration: none;
    font-size: 1.8em;
    font-weight: bold;
    letter-spacing: 1px;
}

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

.main-nav li {
    margin-left: 30px;
}

.main-nav a {
    color: var(--light-text);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1em;
    padding: 5px 0;
    transition: color 0.3s ease, border-bottom 0.3s ease;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--light-blue);
    border-bottom-color: var(--light-blue);
}

/* --- Menu Toggle (Hamburguesa) --- */
.menu-toggle {
    display: none; /* Oculto por defecto, visible solo en mobile */
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 10px;
    position: relative;
    z-index: 1100; /* Asegura que esté por encima del menú desplegado */
}

.hamburger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--light-text);
    margin: 5px 0;
    transition: all 0.3s ease-in-out;
}

/* Animación de la hamburguesa a "X" */
.menu-toggle.is-active .hamburger:nth-child(2) {
    opacity: 0;
}
.menu-toggle.is-active .hamburger:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}
.menu-toggle.is-active .hamburger:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* --- Main Content Section --- */
.main-content {
    padding: 40px 0;
    min-height: calc(100vh - var(--header-height) - 80px); /* Adjust based on header/footer height */
}

.section-title {
    font-size: 2.5em;
    color: var(--secondary-blue);
    text-align: center;
    margin-bottom: 40px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-blue);
    border-radius: 2px;
}

/* --- Cards/Items Styling (for news, downloads, documentation) --- */
.grid-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.card {
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    padding: 25px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12);
}

.card h3 {
    color: var(--primary-blue);
    font-size: 1.5em;
    margin-bottom: 15px;
}

.card p {
    font-size: 1em;
    color: #555;
    margin-bottom: 15px;
    flex-grow: 1; /* Allows paragraph to take available space */
}

.card .meta-info {
    font-size: 0.9em;
    color: #888;
    text-align: right;
    margin-top: 10px;
}

.card a.button {
    display: inline-block;
    background-color: var(--primary-blue);
    color: var(--light-text);
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    text-align: center;
    margin-top: 15px;
    transition: background-color 0.3s ease;
}

.card a.button:hover {
    background-color: var(--secondary-blue);
}


/* --- New: Specific style for download items --- */
.download-item {
    background-color: #fff;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    padding: 15px 20px; /* Reducir padding */
    margin-bottom: 15px; /* Espacio entre items */
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: box-shadow 0.2s ease;
}

.download-item:hover {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.download-item h4 {
    font-size: 1.2em; /* Título un poco más pequeño */
    color: var(--secondary-blue);
    margin-bottom: 5px;
}

.download-item p {
    font-size: 0.9em; /* Texto descriptivo más pequeño */
    color: #666;
    margin-bottom: 8px;
    line-height: 1.4;
}

.download-item a.download-link {
    color: var(--primary-blue);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95em;
    transition: color 0.2s ease;
}

.download-item a.download-link:hover {
    color: var(--secondary-blue);
    text-decoration: underline;
}

.download-item .download-meta {
    font-size: 0.8em; /* Meta información aún más pequeña */
    color: #999;
    text-align: right;
    margin-top: 5px;
}


/* --- Forms/Inputs Styling (for archivos page) --- */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-text);
}

select, button {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1em;
    color: var(--dark-text);
    background-color: #fff;
}

select:focus, button:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
}

button {
    background-color: var(--primary-blue);
    color: var(--light-text);
    border: none;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

button:hover {
    background-color: var(--secondary-blue);
    transform: translateY(-2px);
}

/* --- News Article Specific Styles --- */
.news-article {
    background-color: #fff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    line-height: 1.8;
}

.news-article h3 {
    color: var(--primary-blue);
    margin-top: 25px;
    margin-bottom: 15px;
    font-size: 1.6em;
}

.news-article ul {
    list-style-type: disc;
    margin-left: 25px;
    margin-bottom: 20px;
}

.news-article ul li {
    margin-bottom: 8px;
}

/* Estilos para enmarcar las imágenes dentro de artículos de noticias */
.news-article img {
    max-width: 100%; /* Asegura que la imagen no se desborde del contenedor */
    height: auto;    /* Mantiene la relación de aspecto de la imagen */
    display: block;  /* Evita espacios extra debajo de la imagen */
    margin: 25px auto; /* Centra la imagen horizontalmente y añade espacio vertical */

    /* PROPIEDADES PARA EL ENMARCADO */
    border: 1px solid #ddd; /* Borde sutil de 1px gris claro */
    border-radius: 5px; /* Bordes ligeramente redondeados */
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08); /* Sombra suave para dar profundidad */
    background-color: #fcfcfc; /* Fondo casi blanco para simular un papel recortado */
    padding: 8px; /* Pequeño espacio entre el borde y la imagen real */
}


/* --- Footer --- */
.site-footer {
    background-color: var(--secondary-blue);
    color: var(--light-text);
    text-align: center;
    padding: 25px 0;
    margin-top: 50px;
    font-size: 0.9em;
}

.site-footer p {
    margin: 0;
}