.problems-section {
    padding: 60px 0;
    background-color: #fff;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 25px;
    align-items: start;
}

.problem-card {
    background: #ffffff;
    border: 1px solid #f0f0f0; 
    border-top: 5px solid var(--primary-gold); 
    border-radius: 8px;
    padding: 35px 25px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 20px rgba(0,0,0,0.04);
    position: relative;
    overflow: hidden;
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(0,0,0,0.08);
}

@keyframes floatIcon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.card-icon {
    font-size: 3rem;
    color: #d4a775;
    margin-bottom: 20px;
    animation: floatIcon 3s ease-in-out infinite;
}

.problem-card:nth-child(2) .card-icon { animation-delay: 0.5s; }
.problem-card:nth-child(3) .card-icon { animation-delay: 1s; }

.card-title {
    font-size: 1.25rem;
    color: var(--primary-dark);
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.4;
}

.toggle-btn {
    background: transparent;
    border: 1px solid #d4a775;
    color: #d4a775;
    padding: 10px 30px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.toggle-btn:hover {
    background: #fff;
    box-shadow: 0 4px 12px rgba(212, 167, 117, 0.25);
}

.toggle-btn i { transition: transform 0.3s ease; }

.problem-details {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.5s ease-in-out, opacity 0.4s ease;
    text-align: left;
}

/* AKTİF DURUM */
.problem-card.active .problem-details {
    max-height: 600px;
    opacity: 1;
    margin-top: 25px;
}

.problem-card.active .toggle-btn {
    background-color: var(--primary-gold);
    color: #fff;
    border-color: var(--primary-gold);
}

.problem-card.active .toggle-btn i { transform: rotate(180deg); }

.card-divider { border: 0; border-top: 1px solid #eee; margin: 20px 0; }

.details-title {
    font-size: 0.95rem;
    color: var(--primary-dark);
    font-weight: 800;
    margin-bottom: 8px;
}

.details-text {
    font-size: 0.95rem;
    color: #555;
    margin-bottom: 20px;
    line-height: 1.6;
}

.btn-dark-full {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--primary-dark);
    color: #fff;
    width: 100%;
    padding: 14px;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1rem;
    gap: 10px;
    transition: background-color 0.3s;
}

.btn-dark-full:hover { background-color: #263238; }

@media (max-width: 768px) {
    .problems-grid { grid-template-columns: 1fr; }
    .problem-card { padding: 30px 20px; }
}