body {
    font-family: 'Poppins', sans-serif;
    margin: 0 !important;
}

#logo {
    width: 100px;
    height: 100px;
}

.header {
    background-color: #FCF3DF;
    display: flex;
    align-items: center;
    padding: 5px 20px;
}

.title {
    font-size: 1.2rem;
    margin-left: 50px;
    font-weight: 600;
}

main {
    width: 500px;
    background-color: #FCF3DF;
    border-radius: 10px;
    padding: 20px;
    margin: 2rem auto;
    text-align: center;
}

#quantity {
    width: 80%;
    padding: 20px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 1.2rem;
    margin: 20px 0;
}

#book-btn {
    width: 50%;
    padding: 10px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #fe461c;
    color: #fff;
    cursor: pointer;
    font-size: 1.2rem;
}

@media (max-width: 768px) {
    main {
        width: 90%;
    }
}