:root {
    --maximum-blue-green: hsl(184, 50%, 60%);
    --selective-yellow: hsl(42, 98%, 55%);
    --eerie-black_70: hsla(240, 1%, 14%, 0.7);
    --granite-gray: hsl(0, 0%, 40%);
    --spanish-gray: hsl(0, 0%, 57%);
    --oxford-blue: hsl(240, 18%, 15%);
    --eerie-black: hsl(214, 10%, 14%);
    --xiketic: hsl(240, 100%, 6%);
    --white-1: hsl(0, 0%, 100%);
    --white-2: hsl(0, 0%, 98%);
    --white_10: hsla(0, 0%, 100%, 0.1);
    --jet: hsl(225, 4%, 21%);

    --ff-work-sans: "Work Sans", sans-serif;
    --ff-jost: "Jost", sans-serif;

    --fs-1: 3.2rem;
    --fs-2: 2.4rem;
    --fs-3: 2.2rem;
    --fs-4: 2rem;
    --fs-5: 1.8rem;
    --fs-6: 1.4rem;
    --fs-7: 1.3rem;
    --fs-8: 1rem;

    --fw-400: 400;
    --fw-500: 500;
    --fw-700: 700;

    --section-padding: 60px;

    --radius-circle: 50%;
    --radius-pill: 200px;

    --transition-1: 0.25s ease;
    --transition-2: 0.5s ease;
    --cubic-in: cubic-bezier(0.51, 0.03, 0.64, 0.28);
    --cubic-out: cubic-bezier(0.33, 0.85, 0.4, 0.96);
    --cubic-anim: cubic-bezier(0.455, 0.03, 0.515, 0.955);
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

a,
img,
span,
time,
data,
input,
button,
ion-icon {
    display: block;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    height: auto;
}

input,
button {
    background: none;
    border: none;
    font: inherit;
    color: inherit;
}

input {
    width: 100%;
}

input::-webkit-search-cancel-button {
    display: none;
}

button {
    cursor: pointer;
}

ion-icon {
    pointer-events: none;
}

html {
    font-family: var(--ff-work-sans);
    font-size: 10px;
    scroll-behavior: smooth;
}

body {
    background-color: var(--xiketic);
    color: var(--white-1);
    font-size: 1.6rem;
    line-height: 1.5;
}

:focus-visible {
    outline-offset: 4px;
}

::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background-color: hsl(0, 0%, 98%);
}

::-webkit-scrollbar-thumb {
    background-color: hsl(0, 0%, 80%);
}

::-webkit-scrollbar-thumb:hover {
    background-color: hsl(0, 0%, 70%);
}

.container {
    padding-inline: 15px;
}

.section {
    padding-block: var(--section-padding);
}

.has-bg-image {
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
}

.h1,
.h2,
.h3 {
    font-family: var(--ff-jost);
    font-weight: var(--fw-500);
    line-height: 1.25;
}

.h1 {
    font-size: var(--fs-1);
}

.h2 {
    font-size: var(--fs-2);
}

.h3 {
    font-size: var(--fs-6);
}

.has-before,
.has-after {
    position: relative;
    z-index: 1;
}

.has-before::before,
.has-after::after {
    content: "";
    position: absolute;
    z-index: -1;
}

.btn {
    font-size: var(--fs-7);
    font-weight: var(--fw-500);
    max-width: max-content;
    border: 1px solid var(--white-1);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 18px 30px;
    border-radius: var(--radius-pill);
    transition: var(--transition-1);
}

.btn ion-icon {
    font-size: 16px;
}

.btn:is(:hover, :focus) {
    background-color: var(--maximum-blue-green);
    border-color: var(--maximum-blue-green);
}

.w-100 {
    width: 100%;
}

.h-100 {
    height: 100%;
}

.grid-list {
    display: grid;
    gap: 20px;
}

.section-title,
.section-text {
    text-align: center;
}

.section-text {
    font-size: var(--fs-6);
}

.img-holder {
    aspect-ratio: var(--width) / var(--height);
    overflow: hidden;
}

.img-cover {
    width: 100%;
    height: 100%;
    object-fit: cover;
    padding: 50px;
}

.product-card {
    position: relative;
    border: 1px solid var(--white_10);
}

.product-card .card-badge {
    position: absolute;
    top: 15px;
    left: 15px;
    background-color: var(--maximum-blue-green);
    color: var(--xiketic);
    font-size: var(--fs-8);
    font-weight: var(--fw-700);
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: var(--radius-pill);
}

.product-card .card-banner {
    position: relative;
}

.product-card .card-action {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.8);
    background-color: var(--xiketic);
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 10px 15px;
    border-radius: var(--radius-pill);
    transition: var(--transition-2);
    opacity: 0;
}

.product-card:is(:hover, :focus) .card-action {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.product-card .action-btn {
    font-size: 18px;
    transition: var(--transition-1);
}

.product-card :is(.action-btn, .card-title):is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.product-card .card-content {
    padding: 10px;
}

.product-card .h3 {
    font-weight: var(--fw-400);
}

.product-card .card-title {
    font-family: var(--ff-jost);
    transition: var(--transition-1);
}

.product-card .card-price {
    color: var(--maximum-blue-green);
    margin-block: 10px 5px;
}

.product-card .rating-wrapper {
    display: flex;
    gap: 5px;
    color: var(--selective-yellow);
}

.product-card .rating-wrapper ion-icon {
    --ionicon-stroke-width: 45px;
}

.has-scrollbar {
    display: flex;
    gap: 10px;
    overflow-x: auto;
    scroll-snap-type: inline mandatory;
    padding-block-end: 20px;
    margin-block-end: -20px;
}

.scrollbar-item {
    min-width: 100%;
    scroll-snap-align: start;
}

.has-scrollbar::-webkit-scrollbar {
    height: 10px;
}

.has-scrollbar::-webkit-scrollbar-track {
    background-color: transparent;
    border: 1px solid var(--white-1);
}

.has-scrollbar::-webkit-scrollbar-thumb {
    background-color: var(--white-1);
}

.has-scrollbar::-webkit-scrollbar-button {
    width: 10%;
}

.header-top :is(.input-wrapper, .header-action-btn:last-child),
.header-contact-link {
    display: none;
}

.header {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--xiketic);
    z-index: 4;
}

.header.active {
    position: fixed;
    transform: translateY(-100%);
    animation: slideInTop 0.5s ease forwards;
}

@keyframes slideInTop {
    0% {
        transform: translateY(-100%);
    }

    100% {
        transform: translateY(0);
    }
}

.header-top {
    padding-block: 25px;
}

.header-top .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-action {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-action-btn,
.nav-open-btn {
    font-size: 24px;
    transition: var(--transition-1);
}

.header-action :is(.header-action-btn, .nav-open-btn):is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.header-action-btn {
    position: relative;
}

.header-action-btn .span {
    position: absolute;
    top: -15px;
    right: -8px;
    background-color: var(--eerie-black);
    font-size: var(--fs-8);
    min-width: 18px;
    min-height: 18px;
    border-radius: var(--radius-circle);
    display: grid;
    place-items: center;
}

.header-bottom,
.card-right {
    position: fixed;
    top: 0;
    right: -300px;
    max-width: 260px;
    width: 100%;
    height: 100vh;
    background-color: var(--xiketic);
    border: 1px solid var(--white-1);
    padding: 30px 5px;
    z-index: 1;
    transition: 0.25s var(--cubic-in);
    visibility: hidden;
}

.header-bottom.active,
.card-right.active {
    transform: translateX(-300px);
    visibility: visible;
    transition: 0.5s var(--cubic-out);
}

.nav-close-btn {
    position: absolute;
    top: -1px;
    left: -41px;
    font-size: 20px;
    width: 40px;
    height: 40px;
    display: grid;
    place-items: center;
    background-color: var(--jet);
    transition: var(--transition-1);
}

.nav-close-btn:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.navbar-top {
    position: relative;
    border: 1px solid var(--white-1);
    margin-block-end: 40px;
}

.navbar-top .input-field {
    font-size: var(--fs-6);
    padding: 15px;
    outline: none;
}

.navbar-top .search-btn {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    border-inline-start: 1px solid var(--white-1);
    padding-inline: 15px;
}

.navbar-list,
.card-list {
    border-block: 1px solid var(--white-1);
    padding-block: 30px;
}

.navbar-link {
    padding-block: 10px;
    transition: var(--transition-1);
}

.navbar-link:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background-color: var(--eerie-black_70);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition-1);
}

.overlay.active {
    opacity: 1;
    pointer-events: all;
}

.hero .play-btn {
    display: none;
}

.hero {
    padding-block-start: 90px;
    background-position: left;
}

.hero .container {
    display: grid;
    gap: 20px;
}

.hero-title::after {
    bottom: -15px;
    left: 0;
    width: 70px;
    height: 5px;
    background-color: var(--maximum-blue-green);
}

.hero-text {
    margin-block: 40px;
}

.hero-banner {
    max-width: 300px;
    margin-inline: auto;
}

.book-banner {
    max-width: 50%;
    margin-inline: auto;
}

.feature {
    padding-block: 0;
}

.feature-card {
    background-color: var(--oxford-blue);
    padding: 15px 25px;
    display: flex;
    align-items: center;
    gap: 25px;
}

.feature-card .card-icon {
    width: 60px;
    flex-shrink: 0;
}

.feature-card:hover .card-icon {
    animation: shake-lr 0.5s var(--cubic-anim) both;
}

@keyframes shake-lr {

    0%,
    100% {
        transform: rotate(0);
        transform-origin: 50% 50%;
    }

    10%,
    90% {
        transform: rotate(4deg);
    }

    20%,
    40%,
    60% {
        transform: rotate(-6deg);
    }

    30%,
    50%,
    70% {
        transform: rotate(6deg);
    }

    80% {
        transform: rotate(-4deg);
    }
}

.feature-card .card-title {
    margin-block-end: 5px;
}

.featured .section-text {
    margin-block: 10px 50px;
}

.featured .grid-list {
    gap: 10px;
}

.offer {
    text-align: center;
}

.offer .section-subtitle {
    font-size: var(--fs-3);
}

.offer .section-title {
    --fs-2: 3rem;
    color: var(--maximum-blue-green);
    margin-block: 20px 30px;
}

.countdown-list {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-block: 25px 40px;
}

.countdown-time {
    font-size: var(--fs-5);
    margin-block-end: 8px;
}

.offer .btn {
    padding-block: 12px;
    margin-inline: auto;
}

.popular .section-text {
    margin-block: 10px 40px;
}

.filter-list {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 5px 10px;
    margin-block-end: 40px;
    position: relative;
}

.filter-btn {
    font-family: var(--ff-jost);
    font-size: var(--fs-5);
    padding: 5px 20px;
    transition: var(--transition-1);
}

.filter-btn.active {
    color: var(--maximum-blue-green);
}

.blog {
    padding-block-start: 0;
}

.blog .section-text {
    margin-block: 15px 50px;
}

.blog-card {
    text-align: center;
    border: 1px solid var(--white-1);
    padding: 10px;
}

.blog-card .card-content {
    padding: 0 15px 10px;
}

.blog-card .h3 {
    font-size: var(--fs-4);
    font-weight: var(--fw-400);
    margin-block: 25px 20px;
}

.blog-card .card-title {
    transition: var(--transition-1);
}

.blog-card .card-title:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.blog-card .card-meta-list {
    display: flex;
    justify-content: center;
    padding-block: 15px 20px;
    border-block-start: 1px solid var(--white-1);
}

.blog-card .meta-item {
    display: flex;
    align-items: center;
    color: var(--spanish-gray);
}

.blog-card .meta-link {
    font-size: var(--fs-7);
    transition: var(--transition-1);
}

.blog-card a.meta-link:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.blog-card .meta-item:not(:last-child)::after {
    content: "/";
    display: block;
    margin-inline: 8px;
}

.blog-card .card-text {
    font-size: var(--fs-6);
    margin-block-end: 15px;
}

.blog-card .btn {
    margin-inline: auto;
    padding-block: 12px;
}

.footer-top {
    border-block-end: 1px solid var(--granite-gray);
}

.footer-top .container {
    gap: 40px;
}

.footer-text {
    margin-block: 15px 30px;
}

.social-list {
    display: flex;
    gap: 20px;
}

.social-link {
    font-size: 25px;
    transition: var(--transition-1);
}

.social-link:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.footer-list-title {
    font-size: var(--fs-5);
    font-family: var(--ff-jost);
    font-weight: var(--fw-700);
    margin-block-end: 15px;
}

.footer-link {
    margin-block-start: 10px;
    transition: var(--transition-1);
}

.footer-link:is(:hover, :focus) {
    color: var(--maximum-blue-green);
}

.footer-bottom {
    padding-block: 20px;
    text-align: center;
}

.copyright {
    font-size: var(--fs-6);
    margin-block-end: 20px;
}

.footer-bottom .w-100 {
    max-width: max-content;
    margin-inline: auto;
}

.back-top-btn {
    position: fixed;
    bottom: 30px;
    right: 20px;
    background-color: var(--maximum-blue-green);
    font-size: 20px;
    padding: 10px;
    border-radius: var(--radius-circle);
    transition: var(--transition-1);
    opacity: 0;
    visibility: hidden;
    z-index: 3;
}

.back-top-btn.active {
    transform: translateY(10px);
    opacity: 1;
    visibility: visible;
}

@media (min-width: 575px) {
    .container {
        max-width: 540px;
        width: 100%;
        margin-inline: auto;
    }

    .grid-list {
        grid-template-columns: 1fr 1fr;
    }

    .scrollbar-item {
        min-width: calc(50% - 5px);
    }

    .hero .play-btn {
        display: block;
        color: var(--maximum-blue-green);
        border: 1px solid var(--maximum-blue-green);
        font-size: 22px;
        padding: 20px;
        border-radius: var(--radius-circle);
        animation: pulse 2.5s ease infinite;
    }

    @keyframes pulse {

        0%,
        30% {
            box-shadow: 0 0 0 0 var(--maximum-blue-green);
        }

        100% {
            box-shadow: 0 0 0 20px transparent;
        }
    }

    .hero .btn-wrapper {
        display: flex;
        align-items: center;
        gap: 30px;
    }

    .hero {
        padding-block-start: 150px;
    }
}

#span-query {
    color: var(--maximum-blue-green);
    padding-bottom: 20px;
}

.overview {
    position: relative;
    background-color: black;
    top: 0px;
    height: 0;
    width: 100%;
    border-radius: 30px;
    padding: 100px;
    z-index: 1;
    animation: show 3s forwards;
    display: none;
    overflow: hidden;
}

.img-slider-book {
    padding: 10px;
}

@keyframes show {

    0% {
        height: 0px;
    }

    100% {
        height: unset;
    }
}

.product-list {
    position: relative;
}

.loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: transparent;
    place-items: center;
    z-index: 100;
    display: grid;
}

.loading::before {
    content: '';
    width: 48px;
    height: 48px;
    border: 4px solid var(--white-1);
    border-block-start-color: transparent;
    border-radius: var(--radius-circle);
    animation: loading 500ms linear infinite;
}

@keyframes loading {
    0% {
        transform: translateY(-50%) rotate(0);
    }

    100% {
        transform: translateY(-50%) rotate(1turn);
    }
}