:root {
    --header-height: 3.5rem;
    --border-section: 56px 56px 0 0;

    /*========== Colors ==========*/
    /*Color mode HSL(hue, saturation, lightness)*/
    --first-color: hsl(12, 32%, 22%);
    --first-color-alt: hsl(12, 42%, 12%);
    --first-color-light: hsl(12, 24%, 32%);
    --second-color: hsl(39, 62%, 65%);
    --title-color: hsl(12, 12%, 16%);
    --text-color: hsl(12, 12%, 32%);
    --text-color-light: hsl(12, 8%, 48%);
    --white-color: #fff;

    /*========== Font and typography ==========*/
    /*.5rem = 8px | 1rem = 16px ...*/
    --body-font: "Poppins", sans-serif;
    --second-font: "Pacifico", cursive;
    --biggest-font-size: 2.75rem;
    --big-font-size: 1.75rem;
    --h1-font-size: 1.5rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --smaller-font-size: .75rem;

    /*========== Font weight ==========*/
    --font-regular: 400;
    --font-medium: 500;
    --font-semi-bold: 600;

    /*========== z index ==========*/
    --z-tooltip: 10;
    --z-fixed: 100;
}

/*========== Responsive typography ==========*/
@media screen and (min-width: 1024px) {
    :root {
        --biggest-font-size: 4.5rem;
        --big-font-size: 3rem;
        --h1-font-size: 2.25rem;
        --h2-font-size: 1.5rem;
        --h3-font-size: 1.25rem;
        --normal-font-size: 1rem;
        --small-font-size: .875rem;
        --smaller-font-size: .813rem;
    }
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--white-color);
    color: var(--text-color);
}

ul {
    list-style-type: none;
}

a {
    text-decoration: none;
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    max-width: 1120px;
    margin-inline: 1.5rem;
}

.grid {
    display: grid;
    gap: 1.5rem;
}

.section {
    padding-block: 4.5rem 3.5rem;
}

.section__title {
    margin-bottom: 1.5rem;
    color: var(--title-color);
    font-size: var(--big-font-size);
    font-family: var(--second-font);
    font-weight: var(--font-regular);
    line-height: 120%;
    text-align: center;
}

.main {
    overflow: hidden;
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--first-color);
    z-index: var(--z-fixed);
    transition: background-color .4s, box-shadow .4s;
}

.header__border {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background-image: linear-gradient(90deg,
    var(--text-color-light) 50%,
    transparent 50%);
    background-size: 24px;
    transition: opacity .3s;
}

.nav {
    height: var(--header-height);
    display: flex;
    justify-content: center;
    align-items: center;

}

.nav__logo {
    color: var(--white-color);
    display: flex;
    align-items: center;
    column-gap: .5rem;
    font-size: var(--h3-font-size);
    font-family: var(--second-font);
}

.nav__logo img {
    width: 28px;
}

@media screen and (max-width: 1023px) {
    .nav__menu {
        position: fixed;
        bottom: 0;
        background: linear-gradient(180deg,
        var(--first-color) 0%,
        var(--first-color-alt) 100%);
        border-radius: 56px 56px 0 0;
        box-shadow: 0 -2px 12px hsla(12, 32%, 12%, .3);
        width: 100%;
        padding: 1.25rem 4rem;
    }
}

.nav__list {
    display: flex;
    justify-content: space-between;
}

.nav__link {
    color: var(--white-color);
    font-family: var(--second-font);
    font-size: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    row-gap: .25rem;
    transition: color .3s;
}

.nav__link i {
    background: linear-gradient(180deg,
    hsl(39, 62%, 75%) 0%,
    hsl(39, 62%, 45%) 100%);
    color: transparent;
    -webkit-background-clip: text;
    font-size: 1.5rem;
}

.nav__link:hover {
    color: var(--second-color);
}

/*scroll header*/

.scroll-header {
    box-shadow: 0 2px 8px hsla(12, 32%, 12%, .5);
}

.scroll-header .header__border {
    opacity: 0;
}

.active-link {
    color: var(--second-color);
}

/*==================  HOME ==================*/

.home {
    background: linear-gradient(180deg,
    var(--first-color) 0%,
    var(--first-color-alt) 100%);
}

.home__container {
    padding-top: 2rem;
    row-gap: 2rem;
}

.home__data {
    text-align: center;
}

.home__subtitle {
    font-size: var(--normal-font-size);
    color: var(--second-color);
    font-weight: var(--font-medium);
    margin-bottom: .75rem;
}

.home__title,
.home__description {
    color: var(--white-color);
}

.home__title {
    text-align: initial;
    font-size: var(--biggest-font-size);
    font-family: var(--second-font);
    font-weight: var(--font-regular);
    line-height: 120%;
    margin: 0 auto 2rem;
    position: relative;
    width: max-content;
}

.home__title img {
    width: 80px;
    position: absolute;
    right: -1rem;
    bottom: -1.25rem;
}

.home__description {
    margin-bottom: 2rem;
}

.home__img {
    width: 320px;
    justify-self: center;
}

.button {
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    background-color: var(--second-color);
    padding: 1rem 1.5rem;
    border-radius: 4rem;
    color: var(--title-color);
    font-weight: var(--font-medium);
    box-shadow: 0 8px 32px hsla(39, 62%, 65%, .25);
    transition: box-shadow .3s;
}

.button i {
    font-size: 1.5rem;
    transition: transform .3s;
}

.button:hover {
    box-shadow: 0 8px 48px hsla(39, 62%, 65%, .3);
}

.button:hover i {
    transform: translateX(.25rem);
}

.products {
    background-color: var(--first-color-alt);
}

.products__bg {
    background-color: var(--first-color);
    border-radius: var(--border-section);
}

.products__container {
    row-gap: 3.5rem;
}

.products__button {
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    background-color: var(--first-color-alt);
    padding: 1rem 1.5rem;
    border-radius: 4rem;
    color: var(--white-color);
    font-weight: var(--font-medium);
    box-shadow: 0 8px 24px hsla(12, 32%, 8%, .5);
    margin-bottom: 2rem;
    transition: box-shadow .3s, transform .3s;
}

.products__button i {
    font-size: 1.5rem;
}

.products__button:hover {
    box-shadow: 0 8px 32px hsla(12, 32%, 8%, .6);
    transform: translateY(.35rem);
}

.products__data,
.products__card {
    text-align: center;
    color: var(--white-color)
}

.products__content {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    justify-content: center;
    gap: 3.5rem 4.5rem;
}

.products__img {
    width: 120px;
    filter: drop-shadow(0 4px 16px hsl(12, 32%, 16%));
    margin-bottom: 1.5rem;
    transition: transform .4s;
}

.products__img:hover {
    transform: translateY(-.35rem);
}

.products__name,
.products__price {
    font-size: var(--h2-font-size);
    font-family: var(--second-font);
    font-weight: var(--font-regular);
    line-height: 120%;
}

/*==================  ABOUT ==================*/

.about {
    background-color: var(--first-color);
}

.about__bg {
    background-color: var(--white-color);
    border-radius: var(--border-section);
}

.about__container {
    row-gap: 3rem;
}

.about__data {
    text-align: center;
}

.about__img {
    width: 320px;
    border-radius: 1rem;
}

/*==================  STEPS ==================*/

.steps {
    position: relative;
    background-color: var(--white-color);
}

.steps__bg {
    background-color: var(--first-color);
    border-radius: var(--border-section);
}

.steps__container {
    padding-top: 2rem;
}

.steps .section__title,
.steps__description {
    color: var(--white-color);
}

.steps__content {
    position: relative;
    display: grid;
    row-gap: 4rem;
}

.steps__card {
    width: 250px;
    z-index: 10;
}

.steps__circle {
    margin-bottom: 1.5rem;
    width: 150px;
    height: 150px;
    background-color: var(--first-color-light);
    border-radius: 50%;
    box-shadow: 0 8px 32px hsla(12, 32%, 8%, .3);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.steps__img {
    width: 120px;
    filter: drop-shadow(0 4px 16px hsl(12, 32%, 16%));
    transition: transform .3s;
}

.steps__img:hover {
    transform: translateY(-.35rem);
}

.steps__subcircle {
    position: absolute;
    top: -.75rem;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    font-size: var(--h1-font-size);
    font-weight: var(--font-semi-bold);
    color: var(--first-color);
    background-color: var(--second-color);
    border-radius: 50%;
    outline: 10px solid var(--first-color);
}

.steps__card-move,
.steps__card-move .steps__circle {
    margin-left: auto;
}

.steps__card-move .steps__description {
    text-align: right;
}

.steps__border {
    position: absolute;
    left: 3rem;
    right: 0;
    top: 7.5rem;
    margin: 0 auto;
}

.steps__bg-img {
    position: absolute;
    top: 14rem;
    left: 0;
    width: 100%;
    height: 70%;
    object-fit: cover;
    object-position: -132px;
    opacity: .15;
}

/*================== TESTIMONIAL ==================*/

.testimonial {
    background-color: var(--first-color);
}

.testimonial__bg {
    background-color: var(--white-color);
    border-radius: var(--border-section);
}

.testimonial__container {
    row-gap: 3rem;
}

.testimonial__data {
    text-align: center;
}

.testimonial__name {
    font-weight: var(--font-medium);
}

.testimonial__img {
    width: 320px;
    border-radius: 1rem;
    justify-self: center;
}

/*================== FOOTER ==================*/

.footer {
    position: relative;
    background-color: var(--white-color);
}

.footer__bg {
    background-color: var(--first-color);
    border-radius: var(--border-section);
}

.footer__container {
    position: relative;
    padding-block: 4rem 7rem;
    row-gap: 4.5rem;
}

.footer__data {
    text-align: center;
    row-gap: 4.5rem;
}

.footer__logo,
.footer__title,
.footer__input,
.footer__description,
.footer__social-link {
    color: var(--white-color);
}

.footer__logo {
    margin-bottom: 1rem;
    display: inline-flex;
    align-items: center;
    column-gap: .5rem;
    font-size: var(--h3-font-size);
    font-family: var(--second-font);
}

.footer__logo img {
    width: 28px;
}

.footer__title {
    font-size: var(--big-font-size);
    font-family: var(--second-font);
    font-weight: var(--font-regular);
    line-height: 120%;
}

.footer__form {
    row-gap: 1rem;
}

.footer__input,
.footer__button {
    border: none;
    outline: none;
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    font-weight: var(--font-medium);
}

.footer__input {
    width: 100%;
    background-color: transparent;
    border: 2px solid var(--text-color-light);
    padding: 1.15rem 1.5rem;
    border-radius: 4rem;
}

.footer__input::placeholder {
    color: var(--text-color-light);
}

.footer__button {
    padding-block: 1.25rem;
    justify-content: center;
    cursor: pointer;
}

.footer__description {
    font-size: var(--small-font-size);
}

.footer__privacy {
    color: var(--second-color);
}

.footer__privacy:hover {
    text-decoration: underline;
}

.footer__content {
    row-gap: 2rem;
}

.footer__social {
    display: flex;
    justify-content: center;
    column-gap: 2rem;
}

.footer__social-link {
    font-size: 1.25rem;
    transition: color .3s;
}

.footer__social-link:hover {
    color: var(--second-color)
}

.footer__copy {
    color: var(--text-color-light);
    font-size: var(--smaller-font-size);
    text-align: center;
}

.footer__bg-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: -172px;
    opacity: .15;
}

/*================== SCROLL BAR ==================*/

::-webkit-scrollbar {
    width: .6rem;
    background-color: hsl(12, 8%, 65%);
}

::-webkit-scrollbar-thumb {
    background-color: hsl(12, 8%, 45%);
}

::-webkit-scrollbar-thumb:hover {
    background-color: hsl(12, 8%, 35%);
}

.scroll-up {
    position: fixed;
    right: 1rem;
    bottom: -50%;
    background: linear-gradient(180deg,
    var(--first-color) 0%,
    var(--first-color-alt) 100%);
    box-shadow: 0 0 8px hsla(12, 32%, 12%, .5);
    color: var(--white-color);
    font-size: 1.1rem;
    display: inline-flex;
    padding: .6rem;
    border-radius: 50%;
    z-index: var(--z-tooltip);
    transition: bottom .5s, transform .3s;
}

.scroll-up:hover {
    transform: translateY(-.25rem);
}

.show-scroll {
    bottom: 7rem;
}

/*================== MEDIA ==================*/

@media screen and (max-width: 300px) {
    .container {
        margin-inline: 1rem;
    }

    .nav__menu {
        padding-inline: 3rem;
    }

    .home__title {
        width: 220px;
        text-align: center;
    }

    .home__title img {
        bottom: 2.5rem;
    }

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

    .steps__content {
        row-gap: 3rem;
    }

    .steps__card {
        width: initial;
    }

    .steps__border {
        left: 0;
        top: 5.5rem;
    }
}


@media screen and (min-width: 400px) {
    .steps__content {
        grid-template-columns: 325px;
        justify-content: center;
    }
}

@media screen and (min-width: 576px) {
    .nav__menu {
        width: 376px;
    }

    .home__container,
    .products__container,
    .about__container,
    .testimonial__container,
    .footer__container {
        grid-template-columns: 400px;
        justify-content: center;
    }
}

@media screen and (min-width: 1023px) {
    .section {
        padding-block: 7.5rem 5.5rem;
        --border-section: 104px 104px 0 0;
    }

    .nav {
        height: calc(var(--header-height) + 2rem);
        justify-content: space-between;
    }

    .nav__logo img {
        width: 32px;
    }

    .nav__menu {
        width: initial;
    }

    .nav__list {
        column-gap: 4.5rem;
    }

    .nav__link {
        font-size: var(--normal-font-size);
    }

    .nav__link i {
        display: none;
    }

    .home__container {
        padding-top: 3rem;
        grid-template-columns: max-content 440px;
        align-items: center;
    }

    .home__img {
        order: -1;
        width: 450px;
    }

    .home__data {
        text-align: center;
    }

    .home__title img {
        width: 120px;
    }

    .home__description {
        margin-bottom: 3rem;
    }

    .products__container {
        grid-template-columns: 418px 535px;
        align-items: center;
    }

    .products__data {
        text-align: initial;
    }

    .products__content {
        grid-template-columns: repeat(3, 1fr);
    }

    .products__name,
    .products__price {
        font-size: var(--h3-font-size);
    }

    .about__container {
        grid-template-columns: max-content 465px;
        align-items: center;
    }

    .about__img {
        order: -1;
        width: 450px;
    }

    .about__data,
    .about__data .section__title {
        text-align: initial;
    }

    .steps__content {
        padding-top: 3rem;
        grid-template-columns: repeat(3, max-content);
        column-gap: 6.5rem;
    }

    .steps__card {
        width: 272px;
    }

    .steps__card-move {
        display: flex;
        flex-direction: column;
        margin-top: 7rem;
    }

    .steps__card-move .steps__circle {
        margin-left: initial;
    }

    .steps__card-move .steps__description {
        margin-bottom: 3rem;
        order: -1;
        text-align: initial;
    }

    .steps__circle {
        width: 260px;
        height: 260px;
    }

    .steps__img {
        width: 210px;
    }

    .steps__subcircle {
        width: 85px;
        height: 85px;
        top: -1.25rem;
        outline: 15px solid var(--first-color);
    }

    .steps__border {
        transform: rotate(85deg);
        width: 200px;
        top: 2rem;
        left: 0;
    }

    .steps__bg-img {
        top: 0;
        height: 100%;
        object-position: initial;
    }

    .testimonial__container {
        grid-template-columns: 510px max-content;
        align-items: center;
    }

    .testimonial__img {
        width: 450px;
    }

    .testimonial__data,
    .testimonial__data .section__title {
        text-align: initial;
    }

    .testimonial__data .section__title {
        margin-bottom: 3rem;
    }

    .footer__container {
        padding-block: 6rem 3rem;
        grid-template-columns: initial;
        justify-content: initial;
        row-gap: 6rem;
    }

    .footer__data {
        grid-template-columns: repeat(2, max-content);
        justify-content: space-between;
        text-align: initial;
    }

    .footer__logo {
        margin-bottom: 1.5rem;
    }

    .footer__logo img {
        width: 32px;
    }

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

    .footer__form {
        width: 360px;
        row-gap: 1.5rem;
    }

    .footer__content {
        row-gap: 4rem;
    }

    .footer__social {
        column-gap: 3rem;
    }

    .footer__social-link {
        font-size: 1.5rem;
    }

    .footer__bg-img {
        object-position: top;
    }

    .scroll-up {
        right: 3rem;
    }

    .show-scroll {
        bottom: 3rem;
    }
}

@media screen and (min-width: 1152px) {
    .container {
        margin-inline: auto;
    }
}

@media screen and (min-width: 1248px) {
    .home__container {
        column-gap: 4.5rem;
    }

    .home__img {
        width: 550px;
    }

    .products__container {
        column-gap: 9rem;
    }

    .about__container {
        column-gap: 6.5rem;
    }

    .about__img {
        width: 550px;
    }

    .testimonial__container {
        column-gap: 2rem;
    }

    .testimonial__img {
        width: 550px;
    }
}