/* =========================================
   SECCIÓN: CASOS DE ÉXITO (TEMA OSCURO PDF)
   ========================================= */

.casos-exito-section {
    padding: 90px 0;
    background-color: var(--bg-secondary);
}

.grid-portafolio {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 50px;
}

.card-portafolio {
    background: rgba(255, 255, 255, 0.03);
    border-radius: 8px;
    border: 1px solid var(--border-light);
    overflow: hidden;
    transition: var(--transition-base);
}

.card-portafolio:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    border-color: var(--brand-red);
    background: rgba(255, 255, 255, 0.05);
}

/* Manejo de imagen y zoom */
.portafolio-img {
    position: relative;
    width: 100%;
    height: 220px;
    background-color: rgba(255, 255, 255, 0.02);
    overflow: hidden;
}

.portafolio-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.card-portafolio:hover .portafolio-img img {
    transform: scale(1.05);
}

/* Badge estadístico */
.portafolio-stat {
    position: absolute;
    bottom: 15px;
    left: 15px;
    background-color: var(--brand-blue);
    color: #FFFFFF;
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 4px;
    border-left: 3px solid var(--brand-red);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.5);
}

.portafolio-info {
    padding: 25px;
}

.portafolio-info h3 {
    font-size: 1.25rem;
    color: #FFFFFF;
    margin-bottom: 10px;
    font-weight: 700;
}

.portafolio-info p {
    font-size: 0.92rem;
    color: var(--text-muted);
    margin: 0;
    line-height: 1.5;
}

/* Banner de Frase Clave */
.quote-banner {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-light);
    border-left: 4px solid var(--brand-red);
    padding: 35px 40px;
    border-radius: 0 8px 8px 0;
    text-align: center;
}

.quote-banner blockquote {
    font-size: 1.3rem;
    font-weight: 600;
    color: #FFFFFF;
    font-style: italic;
    margin: 0;
    line-height: 1.4;
}

/* Responsivo Móvil */
@media (max-width: 768px) {
    .casos-exito-section { padding: 50px 0; }
    .grid-portafolio { grid-template-columns: 1fr; }
    .quote-banner { padding: 25px 20px; }
    .quote-banner blockquote { font-size: 1.1rem; }
}