body {
    margin: 0;
    padding: 0;
    font-family: "Dongle", serif;
}

/* Preloader Styles */
#preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 5px solid #ccc;
    border-top: 5px solid #333;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Header */
header {
    width: 100%;
    text-align: center;
    background-color: #ddedea;
    padding: 20px 0 40px 0;
}

header h1 {
    font-family: "Lobster Two", sans-serif;
    font-size: 60px;
    margin: 0;
}

header p {
    font-size: 30px;
    margin: 0 10px;
}

#searchInput {
    position: relative;
    left: 18px;
    width: 500px;
    border-radius: 25px;
    padding: 3px 10px;
    font-size: 23px;
    border: 1px solid grey;
    font-family: "Dongle", serif;
}

#magnifying-glass {
    position: relative;
    right: 18px;
    top: 2px;
    color: grey;
}

header .fa-house {
    position: absolute;
    left: 15px;
    top: 40px;
    font-size: 2.3em;
}

header .fa-house:hover {
    cursor: pointer;
}

/* Category Section */
#categories h1 {
    font-size: 45px;
    margin: 20px 0 0 10px;
}

.categories {
    display: flex;
    gap: 1rem;
    overflow-x: auto;
    white-space: nowrap;
    padding: 20px 16px 20px 0;
    width: 100vw;
    box-sizing: border-box;
}

.category-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
    flex-shrink: 0;
}

.category-item i {
    font-size: 3.0rem;
    margin-bottom: 10px;
}

.category-item i:hover {
    cursor: pointer;
}

.category-item p {
    margin: 0;
    font-size: 27px;
    text-align: center;
}

.category-item i {
    font-size: 2em;
    transition: transform 0.3s ease;
}

.category-item i.active {
    transform: scale(1.4);
}

/* Search Results Section */
#search {
    display: flex;
    justify-content: center;
    display: none;
}

#searchResults {
    width: 100%;
    max-width: 1800px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px;
    justify-content: center;
}

#searchTitle {
    text-align: center;
    margin: 0 10px;
    font-size: 35px;
}

/* Main Section */
main {
    display: flex;
    justify-content: center;
    display: none;
}

#resultsContainer {
    width: 100%;
    max-width: 1800px;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 20px 0;
    justify-content: center;
}

/* Thriller Section */
#thriller h1 {
    font-size: 45px;
    text-align: left;
    margin: 0 0 0 10px;
}

.thriller {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px 10px 0 10px;
    scroll-behavior: smooth;
}

.book-results img {
    width: 180px;
}

.book-results h3,
.book-results h4 {
    font-size: 30px;
    margin: 0 0 10px 0;
    max-width: 180px;
    text-align: center;
    line-height: 0.8;
}

.book-results h4 {
    font-size: 25px !important;
    font-weight: 100;
}

.book-results {
    min-width: 180px;
    flex: 0 0 auto;
    text-align: center;
}

/* Adult book section */
#adults h1 {
    font-size: 45px;
    text-align: left;
    margin: 0 0 0 10px;
}

.adults {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px;
    scroll-behavior: smooth;
}

/* Kids Books Section */
#kids {
    margin-bottom: 30px;
}

#kids h1 {
    font-size: 45px;
    text-align: left;
    margin: 0 0 0 10px;
}

.kids {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    padding: 10px;
    scroll-behavior: smooth;
}

footer {
    width: 100%;
    text-align: center;
    background-color: #ddedea;
    padding: 10px 0;
}

footer p {
    font-size: 30px;
    margin: 0;
}

footer span {
    font-size: 35px;
}

/* Responsive Styles */

/* Header */
@media screen and (max-width: 600px) {
    #searchInput {
        width: 400px;
        left: 8px
    }
    
    #magnifying-glass {
        right: 26px;
    }
}

@media screen and (max-width: 450px) {
    #searchInput {
        width: 300px;
    } 
}

@media screen and (max-width: 443px) {
    header h1 {
        font-size: 55px;
    }

    header p {
        line-height: 0.8;
        margin-bottom: 5px;
    }
}

@media screen and (max-width: 415px) {
    header h1 {
        font-size: 50px;
    }

    header .fa-house {
        font-size: 2em;
    }
}

@media screen and (max-width: 370px) {
    header h1 {
        font-size: 45px;
    }

    header .fa-house {
        font-size: 1.7em;
    }

    header p {
        font-size: 27px;
        line-height: 0.8;
        margin-bottom: 5px;
    }

    #searchInput {
        border-radius: 25px;
        padding: 3px 10px;
        font-size: 20px;
    }
}

/* Book Results */
@media screen and (max-width: 400px) {
    .book-results img {
        width: 150px;
    }
    
    .book-results h3,
    .book-results h4 {
        max-width: 150px;
    }
    
    .book-results {
        min-width: 150px;
    }
}