/* Efectos de tarjetas modernas y sombras sutiles */
.card-metrica {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    border: 1px solid #334155;
    padding: 1.5rem;
    border-radius: 1rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card-metrica:hover {
    transform: translateY(-2px);
    border-color: #4f46e5;
}

/* Scrollbar personalizado moderno */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: #020617;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: #334155;
}