/* CSS Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

* {
    margin: 0;
    padding: 0;
}

body {
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

img, picture, video, canvas, svg {
    display: block;
    max-width: 100%;
}

input, button, textarea, select {
    font: inherit;
}

p, h1, h2, h3, h4, h5, h6 {
    overflow-wrap: break-word;
}

#root, #__next {
    isolation: isolate;
}

:root {

    /* Top-level */
    background: var(--clr-white);


    /* Font families */
    --ff-heading: 'Open Sans', sans-serif;
    --ff-subheading: 'Cabin', sans-serif;
    --ff-body: 'Cabin', sans-serif;


    /* Font sizes */
    --fs-200: 0.75rem;
    --fs-300: 0.875rem;
    --fs-500: 1rem;
    --fs-600: 1.25rem;
    --fs-700: 1.5rem;
    --fs-800: 2rem;
    --fs-900: 3rem;
    --fs-huge: 6rem;

    /* Font weights */
    --fw-light: 300;
    --fw-regular: 400;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Font line heights */
    --fl-regular: 1;

    /* Heading font styling */
    --heading-spacing: 0.3rem;
    --heading-text-transform: uppercase;

    /* Subheading font styling */
    --subheading-spacing: 0.1rem;

    /* Colors */
    --clr-white: #FFF;
    --clr-light-gray: #FAFAFA;
    --clr-light-med-gray: #eaeaea;
    --clr-med-gray: #999;
    --clr-dark: #000;
    --clr-accent: #32C864;
    --clr-accent-hover: #24aa4e;

}

html {
    scroll-behavior:smooth
}

.header-container {
    background: var(--clr-dark);
    padding: 0.5rem;
}

.header-nav-logo {
    max-width: 220px; 
    /* height: 55px; */
}

.ul li, li a {
    list-style-type: none;
    text-decoration: none;
    font-family: var(--ff-body);
    font-size: var(--fs-600);
    font-weight: var(--fw-regular);
    line-height: var(--fl-regular);
}

.base-container {
    /* max-width: 5120px; */
    margin: 0 auto;
    padding: 3rem 1rem;
}

.content-container {
    max-width: 60rem;
    margin: 0 auto;
}

.hero-heading {
    font-family: var(--ff-heading);
    font-size: var(--fs-800);
    font-weight: var(--fw-light);
    text-transform: var(--heading-text-transform);
    letter-spacing: var(--heading-spacing);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-bottom: 1rem;
    line-height: var(--fl-regular);
}

.hero-subheading {
    font-family: var(--ff-subheading);
    font-size: var(--fs-700);
    font-weight: var(--fw-regular);
    /* letter-spacing: var(--subheading-spacing); */
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-bottom: 1.5rem;
    line-height: var(--fl-regular);
}

.hero-body {
    font-family: var(--ff-body);
    font-size: var(--fs-600);
    font-weight: var(--fw-regular);
    line-height: var(--fl-regular);
    padding-bottom: 1.5rem;
}

.home-hero-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/sdp_trees_1_compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;  
}

.home-hero-heading {
    color: var(--clr-white);
}

.home-hero-subheading {
    color: var(--clr-white);
}

.home-hero-body {
    color: var(--clr-white);
}

.home-brands-container {
    background: var(--clr-white);
}

.home-brands-heading {
    font-family: var(--ff-heading);
    font-size: var(--fs-900);
    font-weight: var(--fw-light);
    color: var(--clr-dark);
    text-transform: var(--heading-text-transform);
    letter-spacing: var(--heading-spacing);
}

.home-brands-subheading {
    font-family: var(--ff-subheading);
    font-size: var(--fs-700);
    font-weight: var(--fw-regular);
    color: var(--clr-dark);
    letter-spacing: var(--subheading-spacing);
}

.thin-container {
    max-width: 40rem;
    margin: 0 auto;
}

.brands-grid {
    display: grid;
    grid-template-columns: 1fr;
    padding: 1rem;
    grid-row-gap: 2rem;
    justify-content: space-evenly;
    justify-items: center;
    align-content: space-evenly;
    align-items: center;
}

/* .brands-grid-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem;
} */

.brands-grid-item img {
    max-width: 285px;
    opacity: 0.33;
}

.brands-grid-item img:hover {
    max-width: 285px;
    opacity: 0.5;
    transition: ease-in-out 0.5s;
    cursor: pointer;
}

.article-group-container {
    background: var(--clr-light-gray);
}

.article-grid {
    display: grid;
    grid-template-columns: 1fr;
    margin-bottom: 1rem;
    padding: 1rem;
    grid-row-gap: 2rem;
    justify-content: space-evenly;
    justify-items: center;
    align-content: space-evenly;
    align-items: center;
}

.article-grid-img {
    max-width: 350px;
    padding: 1rem;
}

.article-grid-heading {
    font-family: var(--ff-subheading);
    font-size: var(--fs-700);
    font-weight: var(--fw-bold);
    color: var(--clr-dark);
    line-height: var(--fl-regular);
    padding-bottom: 1rem;
}

.article-grid-body {
    padding-bottom: 2rem;
}

.base-button {
    font-family: var(--ff-subheading);
    font-size: var(--fs-600);
    font-weight: var(--fw-bold);
    color: var(--clr-white);
    line-height: var(--fl-regular);
    text-decoration: none;
    background: var(--clr-accent);
    padding: 0.66rem 1.5rem;
    border-radius: 0.5rem;
}

.base-button:hover {
    background: var(--clr-accent-hover);
    transition: ease-in-out 0.5s;

}

.cases-plant-tree-img {
    max-width: 300px;
    padding: 1rem;
}

@media screen and (min-width: 1024px) {
    .cases-plant-tree-img {
        max-width: 350px;
    }
}

.take-action-cta-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/sdp_trees_3_compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column  ;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 5rem 1rem;
}

.footer-container {
    background: var(--clr-dark);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-row-gap: 1.5rem;
    justify-content: space-evenly;
    justify-items: center;
    align-content: space-evenly;
    align-items: center;
    text-align: center;
    padding: 5rem 1rem;
}

.footer-grid-item {
    padding: 1rem;
}

.footer-grid-heading {
    font-family: var(--ff-subheading);
    font-size: var(--fs-500);
    font-weight: var(--fw-300);
    font-style: italic;
    color: var(--clr-med-gray);
    line-height: var(--fl-regular);
    padding-bottom: 1rem;
    text-align: center;
}

.footer-grid-list {
    padding: 0;
}

.footer-grid-list-item img {
    max-width: 150px;
    padding-bottom: 1.25rem;
}

.footer-grid-list-item-std img {
    max-width: 150px;
    opacity: 0.3;
    padding-bottom: 1.25rem;
}

.footer-grid-list-item-std img:hover {
    opacity: 0.4;
    transition: ease-in-out 0.5s;
}

.footer-grid-list-item-bluesky img {
    max-width: 150px;
    opacity: 0.5;
    padding-bottom: 1.25rem;
}

.footer-grid-list-item-bluesky img:hover {
    opacity: 0.7;
    transition: ease-in-out 0.5s;
}

.footer-grid-list-item a {
    color: var(--clr-med-gray);
}

.footer-grid-list-item a:hover {
    color: var(--clr-light-gray);
    transition: ease-in-out 0.5s;
}

.footer-grid-divider {
    border: 1px solid var(--clr-med-gray);
    width: 60%;
    color: var(--clr-med-gray);
    opacity: 0.5;
}

.footer-logo {
    max-width: 200px;
    padding-top: 2rem;
    opacity: 0.8;
}

.footer-logo:hover {
    opacity: 0.9;
    transition: ease-in-out 0.5s;
}



/* responsive nav bar */
.navbar {
    background: var(--clr-dark);
    border: 1px solid rgba(0, 0, 0, 0.2);
    padding: 0.5rem;
  }
  
  .main-nav {
    list-style-type: none;
    display: none;
  }
  
  .nav-links,
  .logo {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.7);
  }
  
  .main-nav li {
    text-align: center;
    margin: 15px auto;
  }
  
  .logo {
    display: inline-block;
    font-size: 22px;
    margin-top: 10px;
    margin-left: 20px;
  }
  
  .navbar-toggle {
    position: absolute;
    top: 20px;
    right: 20px;
    cursor: pointer;
    color: rgba(255, 255, 255, 0.8);
    font-size: 24px;
  }
  
  #chkToggle {
    display: none;
  }
  
  #chkToggle:checked + ul.main-nav {
    display: block;
  }
  
  @media screen and (min-width: 960px) {
    .navbar {
      display: flex;
      justify-content: space-between;
      /* padding-bottom: 0; */
      height: 70px;
      align-items: center;
      padding: 1rem 3rem;
    }
  
    #chkToggle:checked + ul.main-nav {
      display: flex;
    }
  
    .main-nav {
      display: flex;
      margin-right: 30px;
      flex-direction: row;
      justify-content: flex-end;
    }
  
    .main-nav li {
      margin: 0;
    }
  
    .nav-links {
      margin-left: 40px;
    }
  
    .logo {
      margin-top: 0;
    }
  
    .navbar-toggle {
      display: none;
    }
  
    .logo:hover,
    .nav-links:hover {
      color: var(--clr-accent);
      transition: ease-in-out 0.5s;
    }
  }


  /* Brands grid columns for larger screens */
@media screen and (min-width: 1024px) {
    .brands-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 2rem 1rem 1rem 1rem;
        grid-row-gap: 3rem;
        grid-column-gap: 4rem;
        justify-content: space-evenly;
        justify-items: center;
        align-content: space-evenly;
        align-items: center;
    }
}

/* Case studies grid columns for larger screens */
@media screen and (min-width: 1024px) {
    .article-grid {
        display: grid;
        grid-template-columns: 1fr 3fr;
        margin-bottom: 1rem;
        padding: 1rem;
        grid-row-gap: 2rem;
        grid-column-gap: 4rem;
        justify-content: space-evenly;
        justify-items: center;
        align-content: space-evenly;
        align-items: center;
    }
}

/* Footer grid columns for larger screens */
@media screen and (min-width: 1024px) {
    .footer-grid {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        grid-row-gap: 1.5rem;
        justify-content: space-evenly;
        justify-items: center;
        align-content: space-evenly;
        align-items: center;
        text-align: center;
        padding: 3rem 1rem;
    }
}

@media screen and (min-width: 1024px) {
    .footer-container hr {
        display: none;
    }
}

.about-us-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-row-gap: 1.5rem;
    justify-content: space-evenly;
    justify-items: center;
    align-content: space-evenly;
    align-items: start;
    text-align: left;
    padding: 3rem 1rem;
}

.about-us-img img {
    border-radius: 1.5rem;
}

.article-grid-img-caption {
    font-family: var(--ff-body);
    font-size: var(--fs-300);
    font-weight: var(--fw-regular);
    color: var(--clr-med-gray);
    line-height: var(--fl-regular);
    text-align: center;;
}

/* About us grid columns for larger screens */
@media screen and (min-width: 1024px) {
    .about-us-grid {
        display: grid;
        grid-template-columns: 3fr 1fr;
        grid-row-gap: 1.5rem;
        grid-column-gap: 3rem;
        justify-content: space-evenly;
        justify-items: left;
        align-content: space-evenly;
        align-items: start;
        text-align: left;
        padding: 1rem 1rem 0 1rem;
    }

    .about-us-heading {
        padding-top: 2rem;
    }
}

.about-us-text-container {
    max-width: 60rem;
    margin: 0 auto;
    padding: 0 1rem;
}

@media screen and (min-width: 1024px) {
    .about-us-text-container {
        padding-bottom: 2rem;
    }
}

.about-us-body {
    font-family: var(--ff-body);
    font-size: var(--fs-600);
    font-weight: var(--fw-regular);
    color: var(--clr-dark);
    line-height: var(--fl-regular);
    padding-bottom: 1.5rem;
}

.take-action-hero {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/sdp_trees_2_compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;  
}

.contact-us-container {
    padding: 5rem 1rem;
}

.contact-us-heading {
    font-family: var(--ff-heading);
    font-size: var(--fs-700);
    font-weight: var(--fw-bold);
    color: var(--clr-dark);
    text-align: left;
    padding-bottom: 2rem;
    line-height: var(--fl-regular);
}

.contact-us-subheading {
    font-size: var(--fs-700);
    font-weight: var(--fw-bold);
    padding-top: 2rem;
}

.article-grid-text ol li {
    list-style-type: none;
    font-family: var(--ff-body);
    font-size: var(--fs-600);
    font-weight: var(--fw-regular);
    color: var(--clr-dark);
    line-height: var(--fl-regular);
    padding-bottom: 1.5rem;
}

.case-study-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/shipping-container-compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    padding: 10rem 1rem;  
}

.case-study-body {
    font-family: var(--ff-body);
    font-size: var(--fs-600);
    font-weight: var(--fw-regular);
    color: var(--clr-dark);
    line-height: var(--fl-regular);
    padding-bottom: 1.5rem;
}

.case-study-strong-em {
    font-weight: var(--fw-bold);
    font-style: italic;
}

.case-study-detail-container {
    /* background: var(--clr-light-med-gray); */
    /* border-radius: 1.5rem; */
    margin: 2rem auto;
}

.case-study-callout-number {
    font-family: var(--ff-body);
    font-size: var(--fs-900);
    font-weight: var(--fw-bold);
    color: var(--clr-accent);
    line-height: var(--fl-regular);
    padding: 1.5rem;
    text-align: center;
}

.case-study-callout {
    font-family: var(--ff-body);
    font-size: var(--fs-900);
    font-weight: var(--fw-regular);
    color: var(--clr-accent);
    line-height: var(--fl-regular);
    padding: 1.5rem;
}

.case-study-detail-img-pad img {
    padding: 4rem;
}

.other-case-studies-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/sdp_trees_3_compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column  ;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--clr-light-gray);
    padding: 5rem 1rem;
}

.other-case-studies-heading {
    color: var(--clr-dark);
}

.other-case-studies-grid {
    display: grid;
    grid-template-columns: 1fr;
    padding: 1rem;
    grid-row-gap: 2rem;
    justify-content: space-evenly;
    justify-items: center;
    align-content: space-evenly;
    align-items: center;
}

.other-case-studies-grid-item img {
    max-width: 500px;
    padding: 2rem 4rem;
}

.other-case-study-title {
    font-family: var(--ff-subheading);
    font-size: var(--fs-800);
    font-weight: var(--fw-bold);
    padding: 0 1rem;
}

.other-case-study-title {
    margin-bottom: 2rem;
}

  /* Other case studies columns for larger screens */
  @media screen and (min-width: 1024px) {
    .other-case-studies-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        padding: 1rem;
        grid-row-gap: 3rem;
        grid-column-gap: 4rem;
        justify-content: space-evenly;
        justify-items: center;
        align-content: space-evenly;
        align-items: center;
    }
}

.rethinking-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/lush-forest-stream.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column  ;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 5rem 1rem;
}

.eco-friendly-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/eco-friendly-ink.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column  ;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10rem 1rem;
}

.plant-trees-next-case img {
    max-width: 300px;
    margin: 0 auto;
}

.planting-trees-container {
    background-image: linear-gradient(0deg, rgba(0, 0, 0, 0.3), rgba(0, 0, 0, 0.3)), url('./img/sdp_trees_1_compressed.jpg');
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    flex-direction: column  ;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 10rem 1rem;
}

/* Reposition footer brand logo */
@media screen and (min-width: 1024px) {
    .footer-logo {
        padding-top: 0;
    }
}