:root {   
    /* colors */
    --background-color: #fff;
    --pink: hsl(322, 100%, 66%);
    --pink-highlight: hsl(322, 86%, 59%);
    --white: #fff;
    --dark-cyan: hsl(192, 100%, 9%);
    --light-blue: hsl(207, 100%, 98%);;
    --light-gray: #999;

    /* fonts */
    --base-font: 'Open Sans', sans-serif;
    --heading-font: 'Poppins', sans-serif;

    /* font sizes */
    --body-copy: 1.4rem;
}

* { box-sizing: border-box; }

html {
    font-size: 10px;
    font-family: var(--base-font);
    background-color: var(--background-color);
}

.visually_hidden {
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
  }

.img-responsive {
    max-width: 100%;
}

.header {
    align-items: center;
    display: flex;
    justify-content: space-between;
    padding: 2% 8%;
}

.header__logo {
    height: auto;
    min-width: 100px;
    max-width: 150px;

}

.header__button {
    background-color: #fff;
    border-radius: 25px; 
    border: 1px solid var(--pink);
    color: var(--pink);
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 400;
    padding: 7px 20px;
}

.header__button:hover {
    background-color: var(--pink-highlight);
    border-color: var(--pink-highlight);
    color: #fff;
}

.welcome { 
    padding: 0 8%;
    text-align: center; 
}

.welcome__heading {
    font-family: var(--heading-font);
    font-size: 2.7rem;
    font-weight: 700;
    line-height: 1.5;
}

.welcome__text {
    font-size: var(--body-copy);
    font-weight: 400;
    line-height: 1.5;
}

.button {
    border: none;
    border-radius: 25px;
    font-size: 1.4rem;
    font-weight: 600;
    margin: 50px 0;
    padding: 15px 35px;
    text-decoration: none;
}

.button--pink {
    display: inline-block;
    color: var(--white);
    background-color: var(--pink);
    margin: 25px 0;
    -webkit-box-shadow: 6px 8px 20px -1px rgba(0,0,0,0.19);
    -moz-box-shadow: 6px 8px 20px -1px rgba(0,0,0,0.19);
    box-shadow: 6px 8px 20px -1px rgba(0,0,0,0.19);
}

.button--pink:hover {
    background-color: var(--pink-highlight);
}

.welcome__image {
    margin: 50px auto;
}

.welcome__communities { 
    margin: 0 0 75px 0; 
}

.welcome__communities__icon {
    margin-right: 100px;
    width: 35px;
}

.welcome__communities__stat {
    font-size: 5rem;
    margin: 0;
    font-weight: 700;
}

.welcome__communities__text {
    color: var(--light-gray);
    font-size: 1.4rem;
}

.grow {
    background-image: url('../images/bg-section-top-mobile-1.svg'), url('../images/bg-section-bottom-mobile-1.svg');
    background-position: center top, center bottom;
    background-repeat: no-repeat, no-repeat;
    padding: 100px 0 50px 0;
}

.users {
    background-image: url('../images/bg-section-top-mobile-2.svg'), url('../images/bg-section-bottom-mobile-2.svg');
    background-position: center top, center bottom;
    background-repeat: no-repeat, no-repeat;
    padding: 100px 0;
}

.grow__content, .flow__content, .users__content {
    background-color: var(--light-blue);
    margin: 0;
    text-align: center;
    padding: 50px 10%;
}

.flow__content {
    background-color: var(--white);
}

.grow__content__image, .flow__content__image, .users__content__image {
    margin: 20px auto;
}

.grow__content__info, .flow__content__info, .users__content__info {
    padding: 50px 0;
}

.grow__content__header, .flow__content__header, .users__content__header { 
    color: var(--dark-cyan);
    font-family: var(--heading-font);
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 0 20px 0;
}

.grow__content__text, .flow__content__text, .users__content__text {
    color: var(--dark-cyan);
    font-size: var(--body-copy);
    font-weight: 600;
    line-height: 1.7;
    margin-bottom: 0;
}

.ready {
    margin: 0;
    text-align: center;
    padding: 100px 10% 200px 10%;
}

.footer {
    background-image: url('../images/bg-footer-top-mobile.svg');
    background-position: right top;
    background-repeat: no-repeat;
    padding: 40px 0 0 0;
    color: #fff;
}

.footer__content {
    background-color: var(--dark-cyan);
    padding: 75px 10% 0 10%;
}

.footer__content__newsletter__heading {
    font-size: 2rem;
    font-weight: 600;
    text-transform: uppercase;
}

.footer__content__newsletter__text {
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.5;
}

.footer__content__newsletter__email {
    border-radius: 5px;
    border: none;
    font-size: var(--body-copy);
    padding: 10px;
    width: 100%;
}

.footer__content__newsletter__submit {
    background-color: var(--pink);
    border: none;
    border-radius: 5px;
    color: #fff;
    cursor: pointer;
    float: right;
    font-size: var(--body-copy);
    font-weight: 600;
    padding: 10px 25px;
    margin: 15px 0;
}

.footer__content__newsletter__submit:hover {
    background-color: var(--pink-highlight);
}

.social__icon {
    color: #fff;
    width: 25px;
}

.footer__content__branding {
    padding-top: 50px;
    padding-bottom: 50px;
}

.footer__content__branding__logo {
    margin-top: 100px;
}

.footer__content__branding__logo__image {
    max-width: 190px;
}

.footer__content__branding__social {
    display: flex;
    list-style-type: none;
    margin: 50px 0;
    padding: 0;
}

.footer__content__branding__social li { 
    margin: 0 10px 0 0;
}

.footer__content__branding__text {
    font-size: 1.4rem;
    font-weight: 600;
    line-height: 1.5;
}

.footer__content__branding__contact {
    list-style-type: none;
    margin: 50px 0;
    padding: 0;
}

.footer__content__branding__contact li {
    align-items: center;
    display: flex;
    font-size: 1.4rem;
    font-weight: 400;
    margin: 20px 0;
}

.footer__content__branding__contact img {
    margin-right: 16px;
}

.attribution {
    background-color: var(--dark-cyan);
    font-size: 11px; 
    margin: 0;
    padding-bottom: 50px;
    text-align: center;
}

.attribution a { color: hsl(228, 45%, 44%); }

@media (min-width: 390px) {

    .footer {
        background-image: url('../images/bg-footer-top-desktop.svg');
        padding-top: 150px;
    }

    .users {
        background-image: url('../images/bg-section-top-desktop-2.svg'), url('../images/bg-section-bottom-desktop-2.svg');
        padding: 135px 0;
    }

    .grow {
        background-image: url('../images/bg-section-top-desktop-1.svg'), url('../images/bg-section-bottom-desktop-1.svg');
        padding: 165px 0 135px 0;
    }

}

@media (min-width: 600px) {

    .welcome__communities__holder {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .grow, .users, .footer {
        background-size: contain;
    }

    .grow {
        padding: 10.5% 0 9.5% 0; 
        position:relative;
    }

    .users { 
        padding: 10.5% 0 9.5% 0; 
    }
    
    .footer {
        padding-top: 10.5%;
    }

    .footer__content__branding__logo {
        margin-top: 0;
    }
}

@media (min-width: 768px) {

    .welcome__heading {
        font-size: 4rem;
    }

    .welcome__text {
        font-size: 1.6rem;
        margin: 10px auto 50px auto;
        max-width: 500px;
    }

    .button--pink {
        display: block;
        max-width: 270px;
        margin: 25px auto;
    }

    .grow__content, .flow__content, .users__content {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .grow__content__info, .flow__content__info, .users__content__info {
        display: flex;
        flex-direction: column;
        justify-content: center;
        text-align: left;
    }

    .grow__content__info, .users__content__info {
        grid-row: 1;
    }

    .grow__content__header, .flow__content__header, .users__content__header { 
        font-size: 4rem;
    }

    .grow__content__image, .flow__content__image, .users__content__image {
        margin: 20px 0;
    }

    .grow__content__text, .flow__content__text, .users__content__text {
        max-width: 520px;
    }

    .footer__content {
        display: grid;
        grid-gap: 300px;
        grid-template-columns: 1fr 1fr;
        padding: 75px 10% 0 10%;
    }

    .footer__content__newsletter {
        grid-row: 1;
        grid-column: 2;
    }

    .footer__content__branding {
        padding-top: 0; 
    }

    .footer__content__form {
        align-items: center;
        display: flex;
    }

    .footer__content__newsletter__text,
    .footer__content__newsletter__email {
        width: 75%;
    }

    .footer__content__newsletter__submit {
        margin-left: 25px;
        padding: 10px 25px;
    }

    .footer__content__newsletter__heading {
        margin-top: 0;
    }

    .flow__content__info {
        padding-left: 50px;
    }

    .grow__content__info, .users__content__info {
        padding-right: 50px;
    }

}

@media (min-width: 1200px) {
    .grow__content__image, .flow__content__image, .users__content__image {
        margin: 20px 0;
        max-width: 520px;
    }

}