.problema {
    background-color: var(--color-bg-alt);
    padding-block: var(--space-9);
}

.problema__headline {
    max-width: 800px;
    margin-bottom: var(--space-5);
}

.problema__intro {
    max-width: 640px;
    font-size: var(--fs-body);
    margin-bottom: var(--space-8);
}

.problema__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-5);
}

.problema__card {
    border: var(--border-width) solid var(--color-border);
    padding: var(--space-6);
    background-color: var(--color-white);
    transition: border-color 0.2s ease;
}

.problema__card:hover {
    border-color: var(--color-cta-bg);
}

.problema__card-icon {
    display: block;
    color: var(--color-cta-bg);
    margin-bottom: var(--space-4);
}

.problema__card-label {
    display: block;
    font-size: var(--fs-caption);
    font-weight: var(--fw-semibold);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--color-cta-bg);
    margin-bottom: var(--space-3);
}

.problema__card-text {
    font-size: var(--fs-body-sm);
    margin-bottom: 0;
}

@media (max-width: 1023px) {
    .problema__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .problema {
        padding-block: var(--space-7);
    }

    .problema__grid {
        grid-template-columns: 1fr;
    }
}

/* Scroll reveal escalonado — ver base.css para a mecânica */
@media (prefers-reduced-motion: no-preference) {
    .problema__grid > .reveal:nth-child(2) { transition-delay: 0.08s; }
    .problema__grid > .reveal:nth-child(3) { transition-delay: 0.16s; }
    .problema__grid > .reveal:nth-child(4) { transition-delay: 0.24s; }
    .problema__grid > .reveal:nth-child(5) { transition-delay: 0.32s; }
}