body {
    background-color: #f8f9fa;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 50px;
}

.item-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    width: 100%;
    max-width: 800px;
    padding: 0;
}

li {
    background: white;
    border: none; 
    box-shadow: 0 4px 15px rgba(0,0,0,0.1); 
    border-radius: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    transition: transform 0.3s ease;
}

li:hover {
    transform: translateY(-5px); 
}

.favorite-icon {
    font-size: 28px;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.favorite-icon.filled {
    color: #e74c3c;
    text-shadow: 0 0 10px rgba(231, 76, 60, 0.3);
}