File: frontend/css/styles.css

body {
    font-family: Arial, sans-serif;
    margin: 0;
    display: flex;
    background-color: #fff;
}

.sidebar {
    display: block;
    width: 20%; 
    background-color: #fff;
    padding: 20px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    border-right: dashed 2px #e6b393;
    transition: transform 0.5s ease, opacity 0.5s ease;
    z-index: 1000;
    height: 100vh; 
    overflow-y: auto; 
}
p{
    color: #e6b393;
    font-weight: 700;
}
input{
    height: 40px;
}
textarea{
    height: 100px;
}
.sidebar .logo {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 20px;
}

.sidebar nav ul {
    list-style: none;
    padding: 0;
}

.sidebar nav ul li {
    margin: 15px 0;
}

.sidebar nav ul li a {
    text-decoration: none;
    color: brown;
    font-size: 18px;
}

.sidebar nav ul li a.active {
    display: block;
    width: 100%;
    font-weight: bold;
    padding: 10px;
    border-radius: 5px;
    background-color: #fff7f2;
    color: brown;
    box-shadow: inset 0.2rem 0.2rem 0.5rem #c1cae5, inset -0.2rem -0.2rem 0.5rem #ffffff;
}

.continue-reading {
    position: relative;
    text-align: center;
    margin-top: -25px;
}

.continue-reading img {
    width: 100px;
    height: 150px;
    border-radius: 5px;
}

.continue-reading .book-info {
    margin: 10px 0;
}

.continue-reading .book-info span {
    display: block;
    font-size: 14px;
    color: #777;
}

.continue-reading .book-info p {
    font-size: 16px;
    font-weight: bold;
}

.continue-reading .user {
    display: flex;
    justify-content: center;
    margin-top: 10px;
}

.continue-reading .user img {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    margin-right: 10px;
}

.main-content {
    position: absolute;
    width: 70%;
    flex-grow: 1;
    padding: 10px;
    left: 26%;
    background-color: #fff7f2;
    box-shadow:  inset 0.2rem 0.2rem 0.5rem #c1cae5, inset -0.2rem -0.2rem 0.5rem #ffffff;
    border-radius: 10px;
    margin: 20px 20px 20px 0;
    transition: margin-left 0.3s ease;
}

header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    background-color: white;
    border: 2px solid white;
    padding: 3px;
    border-radius: 7px;
    box-shadow: 5px 4px 5px rgba(0, 0, 0, 0.1);
}

header button {
    background-color: #f8f9fa;
    border: none;
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    color: brown;
}

header button.active {
    background-color: #e6b393;
    color: #fff;
}

header input[type="search"] {
    width: 60%;
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
    outline: none;
    
}

header input[type="search"]::placeholder {
    color: #999;
}

.shelf {
    margin-bottom: 20px;
}

.shelf h2 {
    font-size: 20px;
    margin-bottom: 10px;
    position: relative;
    padding-bottom: 10px;
    z-index: 1;
}
.shelf h4 {
    font-size: 20px;
    margin-bottom: 10px;
    position: relative;
    padding-bottom: 10px;
    z-index: 1;
}
.shelf h2::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 25px;
    width: 100%;
    height: 15px;
    background-color: #f8e9df;
    border-radius: 5px;
    box-shadow: 2px 2px 0px 1px #beb7b3, inset 1px -5px 3px 2px #dcc4b4;
    z-index: 1;
}
.shelf h4::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 15px;
    background-color: #f8e9df;
    border-radius: 5px;
    box-shadow: 2px 2px 0px 1px #beb7b3, inset 1px -5px 3px 2px #dcc4b4;
    z-index: 1;
}
.bookshelf {
    display: flex;
    gap: 10px;
    padding: 10px;
    background-color: #f8f9fa00;
    border-radius: 10px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.bookshelf .book {
    position: relative;
}

.bookshelf .book img {
    width: 100px;
    height: 150px;
    border-radius: 5px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}


.bookshelf img {
    width: 100px;
    height: auto; 
}
img{
    width: 100px;
    margin: 10px;
    box-shadow: 3px -2px 3px 2px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    z-index: 1;
}
img:hover{
    position: relative;
    transform: scale(1.5);
    z-index: 10;
}
.bookshelf .book::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -10px;
    width: 100%;
    height: 10px;
    background-color: #ddd;
    border-radius: 5px;
    box-shadow: 2px 2px 0px 1px #b3b7c1, inset 1px -5px 3px 2px #d3d9ea6b;
}
.menu-btn {
    display: none;
}
.products-container {
    display: flex;
    position: relative;
    flex-wrap: wrap;
    gap: 20px;
}
.prateleira{
    display: flex;
    flex-wrap: wrap;
}
.product-card {
    display: flex;
    flex-direction: column;
    border: 2px dashed#df7f43;
    padding: 10px;
    border-radius: 5px;
    width: 200px;
}

.product-image {
    width: 85%;
    height: auto;
}
#cart-content{
    display: flex;
    flex-direction: column;
    height: 250px;
    overflow-y: scroll;
}
.add-to-cart, btn ,#add-product, #btnsalvar{
    background-color: #df7f43;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
}
.edit-product{
    background-color: #e0bf06;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
}
.delete-product, #btncancelar{
    background-color: #995930;
    color: white;
    border: none;
    padding: 10px;
    border-radius: 5px;
    cursor: pointer;
}
.add-to-cart:hover {
    background-color: #218838;
}

.cart-item {
    border: 1px solid #ccc;
    padding: 10px;
    margin-bottom: 10px;
    border-radius: 5px;
}

.cart-total {
    font-weight: bold;
}

.checkout-button, .clear-cart-button {
    background-color: #28a745;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
    margin-right: 10px;
}

.checkout-button:hover, .clear-cart-button:hover {
    background-color: #218838;
}

.remove-from-cart {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    margin-top: 10px;
}

.remove-from-cart:hover {
    background-color: #c82333;
}
.confirm-sale{
    box-shadow: inset 3px 3px 5px 0px;
    height: 45px;
    background-color: rgb(70, 177, 12);
    border: 0;
    width: 30%;
    cursor: pointer;
}
.remove-reservation{
    box-shadow: inset 3px 3px 5px 0px;
    height: 45px;
    background-color: orange;
    border: 0;
    width: 30%;
    cursor: pointer;
}

.login-container, .register-container {
    max-width: 400px;
    margin: 0 auto;
    padding: 20px;
    border-radius: 10px;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.1)
}

.login-container h1, .register-container h1 {
    text-align: center;
    margin-bottom: 20px;
}

.login-container form, .register-container form {
    display: flex;
    flex-direction: column;
}

.login-container label, .register-container label {
    margin-bottom: 5px;
    font-weight: bold;
}

.login-container input, .register-container input {
    margin-bottom: 15px;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.login-container button, .register-container button {
    padding: 10px;
    background: #e6b393;
    border: none;
    color: #fff;
    border-radius: 5px;
    cursor: pointer;
}

.login-container button:hover, .register-container button:hover {
    background: #e6b393;
}

.login-container p, .register-container p {
    text-align: center;
}

.login-container p a, .register-container p a {
    color: #e6b393;
}

.status-reserved {
    background-color: lightyellow;
    border: 1px solid gold;
    color:#28a745;
}
.status-reserved p{
    color:#28a745;
}
.status-sold {
    background-color: lightgreen;
    border: 1px solid green;
    color: rgb(255, 255, 255);
}
.status-sold p{
    color:#ffffff;
}
.status-default {
    background-color: lightgray;
    border: 1px solid gray;
}

.product-card {
    padding: 20px;
    margin: 10px;
    border-radius: 5px;
}

.product-image {
    width: 150px;
    height: auto;
}

.products-container {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

@media (max-width: 768px) {
    .book-image {
        width: 80px; 
    }
    .sidebar {
        width: 220px;
        transform: translateX(-250px);
        transition: transform 0.5s ease, opacity 0.5s ease;
        opacity: 0;
    }

    .sidebar.active {
        transform: translateX(0);
        transition: transform 0.5s ease, opacity 0.5s ease;
        opacity: 1;
    }

    .main-content {
        width: 87%;
        margin: 20px;
        margin-left: -21%;
        margin-top: 71px;
    }

    .menu-btn {
        display: block;
        position: absolute;
        top: 17px;
        left: 50px;
        border: solid 0 transparent;
        background: transparent;
        font-size: 1.5em;
        z-index: 1000;
        cursor: pointer;
    }
    .menu-btn {
        display: inline-block;
        cursor: pointer;
        background: none;
        border: none;
        padding: 10px;
    }
    
    .menu-btn .bar {
        display: block;
        height: 3px;
        margin: 5px auto;
        background-color: #333;
        transition: 0.3s;
    }
    
    .menu-btn .bar.short {
        width: 20px;
    }
    
    .menu-btn .bar.long {
        width: 30px;
        margin-left: 10px;
    }
    
    .menu-btn:hover .bar {
        background-color: #555;
    }
    .all-books{
        display: none;
    }
    img{
        width: 70px;
    }
}

.custom-menu {
    display: none;
    position: absolute;
    background-color: white;
    border: 1px solid #ccc;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    padding: 10px;
    font-size: 1.2em;
    border-radius: 30px;
}

.custom-menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}

.custom-menu ul li {
    padding: 10px;
    cursor: pointer;
}

.custom-menu ul li:hover {
    background-color: #eee;
}
.tabs {
    display: flex;
    margin-bottom: 20px;
}

.tab {
    flex: 1;
    padding: 10px;
    text-align: center;
    cursor: pointer;
    background-color: #f1f1f1;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-right: 10px;
}

.tab.active {
    background-color: #fff;
    border-bottom: none;
    font-weight: bold;
}

.tab:last-child {
    margin-right: 0;
}

#admin-content {
    padding: 20px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 5px;
}

.reservations-container, .sales-container {
    display: flex;
    flex-wrap: wrap;
}

.reservation-card, .sale-card {
    flex: 1 1 200px;
    padding: 10px;
    margin: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f9f9f9;
}
#productForm{
    display: flex;
    flex-direction: column;
    flex-wrap: wrap;
}
#product-list{
    display: flex;
    flex-wrap: wrap;
}