/* --- Problems Section --- */
.problems {
    background-color: var(--color-background-light);
    color: var(--color-text-dark);
}

.section-header.center {
    text-align: center;
    max-width: 800px;
    margin: 0 auto var(--spacing-lg) auto;
}

.section-headline {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--color-primary-blue);
    line-height: 1.2;
    margin-top: 0.5rem;
}

.problems-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media (min-width: 768px) {
    .problems-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    .problems-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.problem-card {
    background: #ffffff;
    border-radius: 12px;
    padding: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(45, 87, 132, 0.05);
    border-top: 4px solid var(--color-accent-gold);
    transition: var(--transition-smooth);
    cursor: pointer;
}

.problem-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(45, 87, 132, 0.15);
    border-top: 4px solid var(--color-primary-green);
}

.problem-icon {
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), background-color 0.4s ease, color 0.4s ease;
}

.problem-card:hover .problem-icon {
    transform: scale(1.15) rotate(5deg);
}

.problem-card h4 {
    color: var(--color-primary-blue);
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.problem-card p {
    color: #4a4a4a;
    font-size: 1rem;
    margin-bottom: 0;
}