:root {
    --color-primario: #D40C1C;
    --primario-oscuro: #a00915;
    --color-texto: #333;
    --texto-claro: #fff;
    --fondo-superpuesto: rgba(0, 0, 0, 0.5);
    --fondo-cristal: rgba(255, 255, 255, 0.9);
    --sombra: 0 4px 6px rgba(0, 0, 0, 0.1);
    --fuente-principal: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

html,body {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: var(--fuente-principal);
    color: var(--texto-claro);
    text-align: center;
}

body {
    background-image:
        linear-gradient(var(--fondo-superpuesto), var(--fondo-superpuesto)),
        url('backgroundchj.jpg');
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
}

h1,h2,h3 {
    margin: 0;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.6);
}

h1 {
    font-size: 4rem;
    color: var(--color-primario);
    margin-bottom: 10px;
}

h3 {
    font-size: 1.5rem;
    color: var(--color-primario);
    font-weight: 400;
}

a {
    text-decoration: none;
    transition: color 0.3s ease;
}

header {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 0;
}

.encabezado-superior {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.logo {
    width: 120px;
    height: auto;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
}

footer {
    margin-top: auto;
    padding: 20px 0;
    font-size: 0.9rem;
    color: var(--texto-claro);
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8), transparent);
    width: 100%;
}

footer a {
    color: var(--texto-claro);
    font-weight: bold;
}

footer a:hover {
    color: var(--color-primario);
}

.rss-footer {
    margin-top: 8px;
}

.rss-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #ee802f;
    font-weight: bold;
    padding: 6px 14px;
    border: 1px solid #ee802f;
    border-radius: 20px;
    transition: all 0.3s ease;
    font-size: 0.85rem;
}

.rss-link:hover {
    background-color: #ee802f;
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(238, 128, 47, 0.4);
}

.rss-icon {
    width: 14px;
    height: 14px;
}

main {
    flex: 1;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

/* Responsividad */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    .logo {
        width: 100px;
    }
}

/* Botón Volver */
.contenedor-volver {
    margin: 40px 0;
    text-align: center;
}

.boton-volver {
    display: inline-block;
    background-color: rgba(255, 255, 255, 0.2);
    color: var(--texto-claro);
    padding: 12px 25px;
    border-radius: 30px;
    border: 2px solid var(--texto-claro);
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
}

.boton-volver:hover {
    background-color: var(--color-primario);
    border-color: var(--color-primario);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}