*
{
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', sans-serif;
    background-color: #f0f0f0;
    color: #333;
    text-align: center;
}

.hero 
{
    padding: 40px;
    background: linear-gradient(rgba(255,255,255,0.85), rgba(255,255,255,0.85)),
    url("https://images.unsplash.com/photo-1512820790803-83ca734da794") no-repeat center center;
    background-size: cover;
    min-height: 100vh;
}

h1 
{
    font-size: 40px;
    margin-bottom: 20px;
}

p 
{
    font-size: 20px;
    margin-bottom: 30px;
}

.shelf-img 
{
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.3);
    margin-bottom: 30px;
}

.buttons button 
{
    margin: 10px;
    padding: 10px 20px;
    font-size: 16px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: 0.3s;
}

.b2 
{
    background-color: #00cec9;
    color: white;
}

.b2:hover 
{
    background-color: #01a3a4;
    transform: scale(1.05);
}

.b3 
{
    background-color: #fd79a8;
    color: white;
}

.b3:hover
{
    background-color: #e84393;
    transform: scale(1.05);
}

.section 
{
    padding: 60px 20px;
    background-color: #fff;
    border-bottom: 1px solid #ddd;
}

.section:nth-child(even) 
{
    background-color: #f9f9f9;
}

.section h2 
{
    font-size: 30px;
    margin-bottom: 10px;
}

.section p, .section ul 
{
    font-size: 18px;
    color: #555;
    margin: 0 auto;
    max-width: 600px;
    text-align:center;
}

.scroll-btn
 {
    position: fixed;
    bottom: 30px;
    left: 30px;
    background-color: #2a26a8;
    color: white;
    border: none;
    border-radius: 60%;
    width: 40px;
    height: 50px;
    font-size: 30px;
    display: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
    transition: 0.4s;
}

.scroll-btn:hover
{
    background-color: #5a4fdc;
}

hr
{
    margin-left: 40%;
    margin-right: 40%;

}