/* =========================
   Problem → Solution
========================= */
.two-column {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
}

.two-column li {
    margin-bottom: 0.65rem;
}

.problem,
.solution {
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
}

.problem-visual,
.solution-visual {
    margin-bottom: 1rem;
}

.problem-visual img,
.solution-visual img {
    max-width: 100%;
    margin: 0 auto;
    width: 70%;
    height: 200px;
    object-fit: cover;
    object-position: center;
    opacity: 0.9;
}

.problem:hover {
    box-shadow: 0 6px 18px rgba(235, 48, 48, 0.15);
}

.solution h3 {
    color: var(--color-primary);
}

.solution:hover {
    box-shadow:
        0 14px 30px rgba(37, 99, 235, 0.15),
        0 4px 8px rgba(0, 0, 0, 0.04);
}

.solution ul li::marker {
    color: var(--color-primary);
}

.solution img {
    box-shadow:
        0 8px 20px rgba(37, 99, 235, 0.08);
}

.problem img {
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.06);
}

@media (max-width: 768px) {
    .two-column {
        grid-template-columns: 1fr;
    }
}