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

.loading-page {
    z-index: 10;
    background-color: #f1f3f4;
    position: absolute;
    top: 0;
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.loader {
    height: 35px;
    width: 35px;
    border-radius: 50%;
    border: 5px solid black;
    border-color: black transparent black black;
    animation-name: rotate;
    animation-iteration-count: infinite;
    animation-duration: 1s;
    animation-timing-function: linear;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

main {
    text-align: center;
}

main .first-section {
    padding: 32px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 48px;
    background: url('./first-background.svg') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

main .second-section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 64px;
    background: url('./second-background.svg') no-repeat center center fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
    background-size: cover;
}

main .first-section .logo-header {
    align-self: center;
    width: 100%;
}

main .first-section .content {
    display: flex;
    flex-direction: column;
    gap: 48px;
    color: #fff;
}

main .first-section .content .content__title {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
}

main .first-section .content .content__title img {
    max-width: 100px;
}

main .second-section {
    position: relative;
    padding: 32px;
    color: #70C9E4;
}

main .image-mac,
main .image-google,
main .image-card,
main .image-follow {
    z-index: 1;
    position: absolute;
    display: none;
}
main .second-section .quality {
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 48px;
}

main .second-section .quality .quality-first,
main .second-section .quality .quality-second {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 16px;
}

main .second-section .quality .quality-first p,
main .second-section .quality .quality-second p {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: left;
    font-size: 24px;
    font-weight: bold;
    gap: 16px;
}

.footer {
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.footer .footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.footer .footer-contact .footer-contact__title {
    font-weight: bold;
    font-size: 24px;
    text-transform: uppercase;
}

.footer .footer-contact .footer-contact__content {
    display: flex;
    flex-direction: column;
    gap: 16px;
    text-align: left;
}

.footer .footer-contact .footer-contact__content a {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    font-size: 24px;
    text-decoration: none;
    color: #70C9E4;
}

.footer .footer-contact .footer-contact__content a .icon {
    display: flex;
    background-color: #fff;
    padding: 8px;
    border-radius: 50px;
}

.footer .footer__social-links {
    display: flex;
    gap: 16px;
}

.footer .footer__social-links a img {
    width: 50px;
}

@media (min-width: 900px) {
    main .first-section .logo-header {
        align-self: flex-start;
        max-width: 300px;
    }
    main .first-section .content .content__title img {
        max-width: 150px;
    }
    main .first-section .content p {
        font-size: 32px;
    }
    main .second-section {
        justify-content: space-between;
    }
    main .image-mac,
    main .image-google,
    main .image-card,
    main .image-follow {
        display: block;
    }
    main .image-mac {
        width: 30vw;
        height: 30vh;
        top: 350px;
    }
    main .image-google {
        width: 20vw;
        height: 40vh;
        top: 300px;
        transform: translateX(180%);
    }
    main .image-card {
        width: 20vw;
        height: 30vh;
        top: 350px;
        transform: translateX(300%);
    }
    main .image-follow {
        bottom: 130px;
        width: 100px;
        right: 40%;
    }
    main .second-section .quality {
        justify-content: space-around;
        flex-direction: row;
    }
    .footer {
        justify-content: space-between;
        flex-direction: row;
    }
    .footer .footer-contact .footer-contact__content {
        flex-direction: row;
    }
    .footer .footer__social-links a img {
        width: 100px;
    }
}