/* ============================================================
   PROBLEM CARDS
   ============================================================ */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.problem-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 28px;
    position: relative;
    overflow: hidden;
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.problem-card:hover {
    border-color: rgba(43, 142, 240, 0.3);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(43, 142, 240, 0.07);
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--primary-light));
    opacity: 0;
    transition: opacity 0.2s;
}

.problem-card:hover::before {
    opacity: 1;
}

.problem-icon {
    font-size: 28px;
    margin-bottom: 14px;
    display: block;
}

.problem-title {
    font-family: 'DM Sans', sans-serif;
    font-size: 17px;
    font-weight: 700;
    color: var(--midnight);
    margin-bottom: 8px;
    line-height: 1.3;
}

.problem-desc {
    font-size: 14px;
    font-weight: 400;
    color: var(--muted);
    line-height: 1.65;
}