.mobile-nav {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 999;
}

.mobile-nav.active {
    display: block;
}

.mobile-nav ul {
    padding: var(--spacing-md) 0;
}

.mobile-nav li {
    width: 100%;
}

.mobile-nav a {
    display: block;
    padding: var(--spacing-md) var(--spacing-lg);
    color: var(--gray-dark);
    font-weight: 500;
    transition: all var(--transition-fast);
}

.mobile-nav a:hover {
    background-color: var(--gray-light);
    color: var(--primary);
}

.mobile-nav .cta-main {
    margin: var(--spacing-md) var(--spacing-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--primary);
    color: var(--white);
    border-radius: var(--border-radius-md);
    text-align: center;
}

.mobile-nav .cta-main:hover {
    background-color: var(--primary-dark);
    color: var(--white);
}

/* Ajuste para el logo en cabecera */
.logo img {
    height: 40px;
    /* Logo original sin filtros para fondo blanco */
}

/* Ajuste para el selector de idioma */
.language-selector {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1001;
    display: flex;
    background-color: var(--primary);
    border-radius: var(--border-radius-full);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.language-selector button {
    padding: 0.5rem 1rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-fast);
    color: white;
}

.language-selector button.active {
    background-color: var(--white);
    color: var(--primary-dark);
}

.language-selector button:not(.active):hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Reorganización de la sección de problemas */
.problems-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-lg);
}

.problem-card {
    flex: 1 1 200px;
    max-width: 300px;
    min-width: 200px;
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
    margin-bottom: var(--spacing-md);
}

/* Sección de empresas de confianza */
.logo-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

.logo-grid .company-logo {
    height: 50px;
    width: auto;
    opacity: 0.8;
    transition: opacity var(--transition-normal), transform var(--transition-normal);
    filter: grayscale(100%);
    object-fit: contain;
}

.logo-grid .company-logo:hover {
    opacity: 1;
    transform: scale(1.1);
    filter: grayscale(0%);
}

@media (max-width: 768px) {
    .problems-grid {
        flex-direction: column;
        align-items: center;
    }
    
    .problem-card {
        max-width: 100%;
        width: 100%;
    }
    
    .logo-grid .company-logo {
        height: 40px;
    }
}