/* --- Estilos Generales y de Fondo --- */
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #f0f0f0;
    background-color: #0d1a2e; /* Fondo azul oscuro por si falla la imagen */
    background-image: url('background.jpg');
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* --- Cabecera y Navegación --- */
header {
    background-color: rgba(10, 25, 47, 0.9);
    backdrop-filter: blur(8px);
    padding: 15px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo h1 {
    margin: 0;
    font-size: 1.6em;
}

.logo h1 a {
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
}

nav ul {
    margin: 0;
    padding: 0;
    list-style: none;
    display: flex;
    gap: 15px;
    align-items: center;
}

nav ul li {
    position: relative; /* Necesario para el desplegable */
}

nav ul li a, .nav-disabled {
    color: #d1d1d1;
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    transition: background-color 0.3s, color 0.3s;
    font-weight: bold;
    border-radius: 6px;
    text-transform: uppercase;
    font-size: 0.9em;
}

nav ul li a:hover, nav ul li a.active {
    background-color: #007bff;
    color: #ffffff;
}

.nav-disabled {
    cursor: not-allowed;
    color: #888;
}

/* --- Menú Desplegable --- */
.dropdown-content {
    display: none;
    position: absolute;
    background-color: rgba(18, 38, 63, 0.95);
    min-width: 160px;
    box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.5);
    z-index: 1;
    border-radius: 0 0 8px 8px;
    padding: 5px 0;
}

.dropdown-content a {
    color: #f0f0f0;
    padding: 12px 16px;
    text-decoration: none;
    display: block;
    text-align: left;
}

.dropdown-content a:hover {
    background-color: #007bff;
}

.dropdown:hover .dropdown-content {
    display: block;
}

/* --- Estilos de la Página de Ligas (ligas.html) --- */
.container {
    max-width: 960px;
    margin: 40px auto;
    padding: 20px;
    text-align: center;
    flex-grow: 1;
}

.page-title h2 {
    font-size: 2.5em;
    color: #fff;
    margin-bottom: 10px;
}

.page-title p {
    font-size: 1.2em;
    color: #ccc;
    margin-bottom: 40px;
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card-grid.single-card {
    grid-template-columns: minmax(300px, 450px);
    justify-content: center;
}

.card {
    background-color: rgba(18, 38, 63, 0.9);
    border: 1px solid rgba(0, 123, 255, 0.5);
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
}

.card h2 {
    font-size: 1.8em;
    margin-top: 0;
    margin-bottom: 25px;
    border-bottom: 2px solid #007bff;
    padding-bottom: 15px;
}

.card-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.btn-green {
    display: block;
    background-color: #28a745;
    color: #fff;
    padding: 15px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s, transform 0.2s;
}

.btn-green:hover {
    background-color: #218838;
    transform: translateY(-2px);
}

.btn-disabled {
    background-color: #5a6268;
    cursor: not-allowed;
}

.btn-disabled:hover {
    background-color: #5a6268;
    transform: none;
}

/* --- Estilos para Páginas de Contenido (normas, resumen, edicion) --- */
.content-box {
    max-width: 900px;
    margin: 40px auto;
    padding: 40px;
    background-color: #0D1B2A; /* FONDO SÓLIDO OSCURO PARA MEJOR LECTURA */
    border: 1px solid rgba(0, 123, 255, 0.5);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    flex-grow: 1;
}

.content-box h2 {
    color: #00aaff;
    border-bottom: 2px solid #00aaff;
    padding-bottom: 10px;
    margin-bottom: 30px;
    font-size: 2.2em;
}

.content-box h3 {
    color: #4db8ff;
    border-bottom: 1px dashed #4db8ff;
    padding-bottom: 8px;
    margin-top: 40px;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.content-box p, .content-box li {
    line-height: 1.8;
    font-size: 1.1em;
}

.content-box ul, .content-box ol {
    padding-left: 30px;
}

.content-box a {
    color: #61dafb;
}

.content-box hr {
    border: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    margin: 40px 0;
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 20px;
    margin-top: auto;
    color: #aaa;
    font-size: 0.9em;
}