.stack-scroll-container{height:100vh;overflow-y:auto;scroll-snap-type:y mandatory}.stack-item{scroll-snap-align:start;position:sticky;top:0;height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem}.stack-scroll-container::-webkit-scrollbar{width:0;background:transparent}.stacked-columns{display:flex;flex-direction:column}.stacked-item{position:sticky;top:0;min-height:100vh;padding:60px 30px;display:flex;flex-direction:column;justify-content:center;background:white;box-shadow:0 2px 6px rgba(0,0,0,0.1);z-index:1;transition:all 0.3s ease}.item-2{z-index:2;background:#f5f7fa}.item-3{z-index:3;background:#e9eef4}.stacked-item h3{font-size:2rem;margin-bottom:20px;color:#0072ff}.stacked-item p{font-size:1.1rem;color:#333}.solution-steps{display:flex;flex-wrap:wrap;justify-content:space-between;gap:30px;padding:20px 0}.step-box{flex:1 1 30%;background-color:#f9f9f9;border:1px solid #ddd;padding:30px 20px;border-radius:12px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,0.05);transition:transform 0.3s ease,box-shadow 0.3s ease}.step-box:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,0.1)}.step-box h3{font-size:1.2rem;margin:20px 0 10px}.step-box p{font-size:1rem;color:#555}.icon{margin-bottom:15px}.accident-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:30px;padding:20px}.accident-box{background-color:#f7f7f7;border:1px solid #ddd;padding:30px 20px;border-radius:12px;text-align:center;box-shadow:0 2px 10px rgba(0,0,0,0.05);transition:transform 0.3s ease,box-shadow 0.3s ease}.accident-box:hover{transform:translateY(-5px);box-shadow:0 10px 20px rgba(0,0,0,0.1)}.accident-box h3{font-size:1.2rem;margin-bottom:15px}.btn-en-savoir-plus{display:inline-block;padding:10px 20px;background-color:#004aad;color:#fff;text-decoration:none;border-radius:8px;transition:background-color 0.3s ease}.btn-en-savoir-plus:hover{background-color:#00357a}