/* Stacking Cards Container */
.stacking-cards-container {
    position: relative;
    width: 100%;
}

.stacking-cards-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
}

.stacking-card {
    width: 90%;
    max-width: 600px;
    min-height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: sticky;
    top: 100px;
    transform-origin: center top;
    transition: transform 0.3s ease;
}

.stacking-card:nth-child(1) { background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); }
.stacking-card:nth-child(2) { background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%); }
.stacking-card:nth-child(3) { background: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%); }
.stacking-card:nth-child(4) { background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%); }
.stacking-card:nth-child(5) { background: linear-gradient(135deg, #fa709a 0%, #fee140 100%); }

.card-content {
    text-align: center;
    padding: 3rem;
    color: white;
}

.card-content h3 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.card-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    line-height: 1.6;
}

.stacking-cards-spacer {
    height: 100vh;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .stacking-card {
        width: 95%;
        min-height: 300px;
    }
    
    .card-content {
        padding: 2rem;
    }
    
    .card-content h3 {
        font-size: 1.8rem;
    }
    
    .card-content p {
        font-size: 1rem;
    }
}