:root {
    --bg-color: #121214;
    --card-bg: #1e1e24;
    --accent-color: #d4af37; /* Dorado mágico */
    --text-color: #e0e0e0;
    --text-muted: #a0a0a0;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Cabecera y Menú */
header {
    background-color: #0b0b0e;
    border-bottom: 2px solid var(--accent-color);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--accent-color);
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 2rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s ease;
    cursor: pointer;
    font-size: 1.05rem;
}

nav ul li a:hover, nav ul li a.active {
    color: var(--accent-color);
}

/* Contenido Principal */
main {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

h1 {
    color: var(--accent-color);
    margin-bottom: 1.5rem;
    font-size: 2.5rem;
}

p {
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Estilo para el Frame de Actividades */
.frame-container {
    width: 100%;
    height: 600px;
    border: 1px solid #333;
    border-radius: 8px;
    overflow: hidden;
    background-color: var(--card-bg);
    margin-top: 1rem;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* Pie de página */
footer {
    background-color: #0b0b0e;
    text-align: center;
    padding: 1.5rem;
    border-top: 1px solid #222;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    nav ul {
        gap: 1rem;
    }
}