/* ==========================================================
   ANIMACIONES Y ELEMENTOS ESPECIALES
   ========================================================== */
@keyframes parpadeo {
    0% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.2); }
    100% { opacity: 1; transform: scale(1); }
}

.interrogante-animado {
    display: inline-block;
    font-size: 28px;
    font-weight: bold;
    animation: parpadeo 1s infinite;
    color: #ffeb3b; /* Amarillo vibrante */
}

/* ==========================================================
   DISE�O DE LA CAJA Y TABLA DE SERIES
   ========================================================== */
.caja-blanca-serie {
    max-width: 480px;
    margin: 5px auto; 
    background: #ffffff;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid #ddd;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    font-family: Arial, sans-serif;
}

.tabla-serie {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
}

.celda-azul {
    padding: 15px;
    border: 1px solid #0056b3;
    background-color: #007bff;
    color: #ffffff;
    text-align: center;
    font-size: 20px;
    font-weight: bold;
}

/* ==========================================================
   FORMULARIO DE CONFIGURACI�N (Niveles, etc.)
   ========================================================== */
.intro-box { 
    text-align: left; 
    font-size: 0.85rem; 
    line-height: 1.3; 
    background: #fdfdfd; 
    padding: 8px 12px; 
    border-radius: 6px; 
    margin-bottom: 15px; 
    border: 1px solid #eee; 
}

.fila-config { 
    display: flex; 
    align-items: center; 
    margin-bottom: 8px; 
    gap: 10px; 
    justify-content: center; 
}

.etiqueta-config { 
    font-weight: bold; 
    font-size: 0.85rem; 
    color: #444; 
    text-align: right; 
    min-width: 100px; 
}

/* Selector estilizado */
select { 
    padding: 6px; 
    border-radius: 4px; 
    font-size: 0.9rem; 
    border: 1px solid #ccc;
    background-color: white;
    min-width: 180px; 
    cursor: pointer;
}

select:focus {
    border-color: #007bff;
    outline: none;
}