:root {
    --header-height: 3.5rem;
    --first-color: #64FFDA;
    --first-color-alt: #52D3B8;
    --title-color: #CCD6F6;
    --text-color: #a8b2d1;
    --body-color: #0A192F;
    --container-color: #112240;
    --body-font: 'Lato', sans-serif;
    --title-font: 'Poppins', sans-serif;
    --biggest-font-size: 2.25rem;
    --h1-font-size: 1.75rem;
    --h2-font-size: 1.25rem;
    --h3-font-size: 1rem;
    --normal-font-size: .938rem;
    --small-font-size: .813rem;
    --mb-0-5: .5rem;
    --mb-1: 1rem;
    --mb-1-5: 1.5rem;
    --mb-2: 2rem;
    --z-tooltip: 10;
    --z-fixed: 100;
}

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

html {
    scroll-behavior: smooth;
}

body {
    margin: var(--header-height) 0 0 0;
    font-family: var(--body-font);
    font-size: var(--normal-font-size);
    background-color: var(--body-color);
    color: var(--text-color);
}

h1, h2, h3, h4 {
    color: var(--title-color);
    font-family: var(--title-font);
    font-weight: 600;
}

ul {
    list-style: none;
}

a {
    text-decoration: none;
}

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

.container {
    max-width: 1024px;
    margin-left: var(--mb-1-5);
    margin-right: var(--mb-1-5);
}

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

.section {
    padding: 4.5rem 0 0rem;
}

.section__title,
.section__title-center {
    font-size: var(--h1-font-size);
    margin-bottom: var(--mb-2);
    line-height: 140%;
    text-align: center;
}

.section__title-center {
    text-align: center;
}

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

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

.nav__logo {
    color: var(--first-color);
    font-weight: 600;
    font-family: var(--title-font);
}

.nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 400px;
    background-color: var(--container-color);
    box-shadow: -2px 0 4px hsla(0, 0%, 15%, .1);
    padding: 4.5rem 0 0 3rem;
    transition: .4s;
}

.nav__list {
    /*background-color: var(--container-color);*/
    display: flex;
    flex-direction: column;
    row-gap: 2rem;
}

.nav__link {
    color: var(--title-color);
    font-size: var(--h2-font-size);
    transition: .3s;
    font-family: var(--title-font);
}

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

.nav__close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    font-size: 2rem;
    color: var(--first-color);
    cursor: pointer;
}

.nav__toggle {
    font-size: 1.5rem;
    color: var(--first-color);
    cursor: pointer;
}

.show-menu {
    right: 0;
}

.scroll-header {
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 4px hsla(0, 0%, 1%, .1);
}

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

.button {
    display: inline-block;
    background-color: transparent;
    color: var(--first-color);
    padding: 1rem 1.75rem;
    border: 1px solid var(--first-color);
    border-radius: .5rem;
    font-weight: 600;
    transition: .3s;
    margin-bottom: 20px;
}

.button:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

.button i {
    vertical-align: middle;
}

.button--header {
    display: none;
}

.home__container {
    padding-top: 2rem;
    text-align: center;
}

.home__title {
    font-size: var(--biggest-font-size);
    margin-bottom: var(--mb-1);
}

.home__description {
    max-width: 600px;
    margin: 0 auto var(--mb-2);
    font-size: 18px;
}

@keyframes scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-100%);
    }
}

.logos {
    padding: 2rem 0;
}

.logos__slider {
    overflow: hidden;
    position: relative;
    width: 100%;
}

.logos__slide-track {
    display: flex;
    width: calc(130px * 7);
    animation: scroll 30s linear infinite;
}

.logos__slide {
    height: 60px;
    width: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 15px;
    /* filter: grayscale(100%);
    opacity: 0.8;
    transition: .3s; */
}

/* .logos__slide:hover {
    filter: grayscale(0%);
    opacity: 1;
} */

.logos__slide img {
    max-height: 50px;
    width: auto;
}

.services__container {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.services__card {
    background-color: var(--container-color);
    padding: 2rem 1.5rem;
    border-radius: .5rem;
    text-align: center;
    transition: .3s;
}

.services__card:hover {
    transform: translateY(-.5rem);
    box-shadow: 0 8px 24px hsla(0, 0%, 0%, .15);
}

.services__icon {
    font-size: 3rem;
    color: var(--first-color);
    margin-bottom: var(--mb-1);
}

.services__title {
    font-size: var(--h2-font-size);
    margin-bottom: var(--mb-0-5);
}

.about__container {
    text-align: center;
}

.about__description {
    margin-bottom: var(--mb-1-5);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-size: 16px;
}

.tech__container {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.tech__category {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: .5rem;
}

.tech__category-title {
    font-size: var(--h3-font-size);
    color: var(--first-color);
    margin-bottom: var(--mb-1);
    border-bottom: 1px solid var(--first-color-alt);
    padding-bottom: var(--mb-0-5);
}

.tech__list {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

.tech__list span {
    background-color: var(--body-color);
    padding: .5rem 1rem;
    border-radius: .25rem;
    font-size: var(--small-font-size);
}

.cta {
    text-align: center;
}

.cta__container {
    background-color: var(--container-color);
    padding: 3rem 1.5rem;
    border-radius: .5rem;
}

.cta__title {
    font-size: var(--h1-font-size);
    margin-bottom: var(--mb-1);
}

.cta__description {
    margin-bottom: var(--mb-2);
}

.button--cta {
    background-color: var(--first-color);
    color: var(--body-color);
    border: none;
}

.button--cta:hover {
    background-color: var(--first-color-alt);
}

.footer {
    padding: 4rem 0 2rem;
    background-color: var(--container-color);
}

.footer__container {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    row-gap: 2rem;
}

.footer__title {
    font-size: 16px;
    margin-bottom: var(--mb-1);
}

.footer__link, .footer__info {
    display: block;
    color: var(--text-color);
    margin-bottom: var(--mb-0-5);
    transition: .3s;
}

.footer__link:hover {
    color: var(--first-color);
}

.footer__social {
    font-size: 1.5rem;
    color: var(--title-color);
    margin-right: var(--mb-1);
    transition: .3s;
}

.footer__social:hover {
    color: var(--first-color);
}

.footer__copy {
    text-align: center;
    margin-top: 4rem;
    font-size: var(--small-font-size);
}

.scrollup {
    position: fixed;
    right: 1rem;
    bottom: -30%;
    background-color: var(--first-color);
    padding: .5rem;
    border-radius: .25rem;
    z-index: var(--z-tooltip);
    opacity: .8;
    transition: .4s;
}

.scrollup:hover {
    opacity: 1;
}

.scrollup__icon {
    font-size: 1.25rem;
    color: var(--body-color);
}

.show-scroll {
    bottom: 3rem;
}

@media screen and (min-width: 768px) {
    body {
        margin: 0;
    }

    .section {
        padding: 7rem 0 2rem;
    }

    .nav {
        height: calc(var(--header-height) + 1.5rem);
    }

    .nav__menu {
        position: initial;
        width: auto;
        height: auto;
        background-color: transparent;
        box-shadow: none;
        padding: 0;
    }

    .nav__list {
        flex-direction: row;
        column-gap: 3rem;
    }

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

    .nav__close,
    .nav__toggle {
        display: none;
    }

    .button--header {
        display: inline-block;
    }
}

@media screen and (min-width: 1024px) {
    .container {
        margin-left: auto;
        margin-right: auto;
    }
}

.contact__container {
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 3rem;
}

.contact__title {
    font-size: var(--h3-font-size);
    margin-bottom: var(--mb-1-5);
}

.contact__info {
    display: grid;
    gap: 1rem;
}

.contact__card {
    background-color: var(--container-color);
    padding: 1.5rem;
    border-radius: .75rem;
    text-align: center;
}

.contact__card-icon {
    font-size: 2rem;
    color: var(--first-color);
    margin-bottom: var(--mb-0-5);
}

.contact__card-title,
.contact__card-data {
    font-size: var(--small-font-size);
}

.contact__card-title {
    font-weight: 600;
}

.contact__card-data {
    display: block;
    margin-bottom: var(--mb-1-5);
}

.contact__button {
    color: var(--first-color);
    font-size: var(--small-font-size);
    display: flex;
    align-items: center;
    justify-content: center;
    column-gap: .25rem;
}

.contact__button:hover .contact__button-icon {
    transform: translateX(.25rem);
}

.contact__button-icon {
    transition: .4s;
}

.contact__form-div {
    position: relative;
    margin-bottom: var(--mb-2);
    height: 4rem;
}

.contact__form-input {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 2px solid var(--text-color);
    background: none;
    color: var(--title-color);
    outline: none;
    border-radius: .75rem;
    padding: 1.5rem;
    z-index: 1;
    font-family: var(--body-font);
}

.contact__form-tag {
    position: absolute;
    top: -.75rem;
    left: 1.25rem;
    font-size: var(--small-font-size);
    padding: .25rem;
    background-color: var(--body-color);
    z-index: 10;
}

.contact__form-area {
    height: 11rem;
}

.contact__form-area textarea {
    resize: none;
}

.contact__message {
    font-size: var(--small-font-size);
    position: absolute;
    bottom: 2.8rem;
    left: 1.5rem;
}

/* .footer {
    background-color: var(--container-color);
    padding: 2rem 0;
}

.footer__container {
    text-align: center;
}

.footer__title {
    font-size: 16px;
    margin-bottom: var(--mb-1);
}

.footer__social {
    display: flex;
    justify-content: center;
    column-gap: 1.5rem;
    margin-bottom: var(--mb-2);
}

.footer__social-link {
    font-size: 1.5rem;
    color: var(--title-color);
    transition: .3s;
}

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

.footer__copy {
    font-size: var(--small-font-size);
} */