html {
  font-size: 62.5%;
}

body {
  font-family: "Bai Jamjuree", sans-serif;
  font-weight: 400;
  font-size: 2.4rem;
  color: #9fabb2;
}

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

/*----------------------*/
.container {
  max-width: 144rem;
  margin: 0 auto;
  line-height: 1.4;
  padding: 0 2.2rem;
}

.grid {
  display: grid;
  gap: 4.6rem;
}

.grid-2-columns {
  grid-template-columns: repeat(2, 1fr);
}

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

h4 {
  font-size: 2.4rem;
  color: #4c545d;
  margin-bottom: 1.4rem;
}

h4 + p {
  font-size: 2rem;
}

/*----------------------*/

/*-------- Hero Section --------*/
.Hero-section {
  /* padding: 9.6rem 0; */
  height: 100vh;
  text-align: center;
  background-image: url("./images/bg-header-desktop.png");
  background-repeat: no-repeat;
  background-position: top;
  background-size: cover;
  position: relative;
}

.hero-description {
  max-width: 80rem;
  padding: 13.5rem 2rem;
  margin: 0 auto;
}

.Clipboard-logo {
  width: 11rem;
  margin-bottom: 4.8rem;
}

.primary-heading {
  margin-bottom: 2rem;
  font-size: 4.8rem;
  color: #4c545d;
}

.hero-text {
  margin-bottom: 6.2rem;
  font-size: 2.2rem;
}

.download-box {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2.4rem;
}

.btn:link,
.btn:visited {
  padding: 1.6rem 2.8rem;
  background-color: #777;
  border-radius: 5rem;
  color: #fff;
  text-decoration: none;
  font-size: 2rem;
  box-shadow: 0 -2px #aaa inset;
}

.btn:link:nth-child(1),
.btn:visited:nth-child(1) {
  background-color: #26baa4;
}

.btn:hover:nth-child(1),
.btn:active:nth-child(1) {
  background-color: #51c8b6;
}

.btn:link:nth-child(2),
.btn:visited:nth-child(2) {
  background-color: #6173ff;
}

.btn:hover:nth-child(2),
.btn:active:nth-child(2) {
  background-color: #818fff;
}

/*-------- Feature Section --------*/
.Feature-section {
  padding: 6.4rem 0;
}

.secondary-heading {
  text-align: center;
  color: #4c545d;
  margin-bottom: 2.4rem;
}

.feature-description {
  max-width: 95rem;
  margin: 0 auto 9.6rem;
  text-align: center;
  line-height: 1.4;
  font-size: 2rem;
}

.feature-box {
  align-items: center;
}

.feature-img-box img {
  max-width: 100%;
  margin-left: -10%;
}

.feature-description-box {
  display: flex;
  flex-direction: column;
  gap: 6.4rem;
}

.feature {
  width: 45rem;
}

/*-------- ClipboardAccess-section --------*/
.ClipboardAccess-section {
  padding: 6.4rem 0;
}

.ClipboardAccess-img-box {
  text-align: center;
}

.C_M-screen {
  width: 70%;
}

/*-------- Workflow-section --------*/
.Workflow-section {
  padding: 9.6rem 0;
  text-align: center;
}

.Workflow-section .feature-description {
  margin-bottom: 9.6rem;
}

.tools-box {
  max-width: 130rem;
  margin: 0 auto 9.6rem;
}

.tool-icon {
  height: 4rem;
  margin-bottom: 2.4rem;
}

.tool-icon + h4 {
  margin-bottom: 2rem;
}

.company-logos {
  display: flex;
  align-items: center;
  justify-content: space-around;
}

/*-------- Download-section --------*/
.Download-section {
  padding: 9.6rem 0;
  text-align: center;
}

/*-------- Footer --------*/
.footer {
  padding: 3.6rem 0;
  text-align: center;
  background-color: #f5f7f7;
}

.footer-grid {
  max-width: 130rem;
  margin: 0 auto;
  padding: 0 2.8rem 3.6rem;
  grid-template-columns: 1fr 1fr 1fr 1fr 2fr;
}

.logo-column img {
  height: 6.4rem;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  text-align: left;
}

.footer-link:link,
.footer-link:visited {
  text-decoration: none;
  color: #4c545d;
  font-size: 1.8rem;
}

.footer-link:hover,
.footer-link:active {
  color: #26baa4;
}

.social-link {
  display: flex;
  list-style: none;
  gap: 2.4rem;
  align-items: center;
  justify-content: flex-end;
}

.social-icon {
  width: 3.2rem;
  height: 3.2rem;
  color: #4c545d;
}

.social-icon:hover {
  color: #26baa4;
}

.attribution {
  font-size: 1.8rem;
  padding: 0 3.6rem;
}

/*******************************/
/*** Below 1030px **************/
/*******************************/
@media (max-width: 64em) {
  html {
    font-size: 50%;
  }

  .hero-description {
    padding-top: 26.5rem;
  }

  .company-logos img {
    width: 15rem;
  }

  .tools-box {
    padding: 0 1.5rem;
  }
}

/*******************************/
/*** Below 860px **************/
/*******************************/
@media (max-width: 54em) {
  .hero-description {
    max-width: 75rem;
    padding-top: 20rem;
  }

  .feature-description {
    max-width: 70rem;
  }

  .company-logos img {
    max-width: 13rem;
  }
}

/*******************************/
/*** Below 650px **************/
/*******************************/
@media (max-width: 41em) {
  .primary-heading {
    font-size: 4rem;
  }

  .hero-text {
    font-size: 2rem;
  }

  .feature-box {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .feature-img-box img {
    max-width: 60%;
    margin: 0 0 5rem;
  }

  .feature-description-box {
    align-items: center;
  }

  .grid-3-columns {
    grid-template-columns: 1fr 1fr;
  }

  .company-logos img {
    max-width: 10rem;
  }

  .grid-5-columns {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-nav:nth-child(3),
  .footer-nav:nth-child(4) {
    margin-top: -1rem;
  }
}

/*******************************/
/*** Below 430px **************/
/*******************************/
@media (max-width: 27em) {
  .hero-description {
    max-width: 45rem;
    padding-top: 15rem;
  }

  .container {
    padding: 0 5rem;
  }

  .download-box {
    flex-direction: column;
  }

  .btn:link {
    width: 40rem;
  }

  .Feature-section {
    padding-bottom: 12.8rem;
  }

  .feature-box {
    padding: 0 5rem;
  }

  .grid-3-columns {
    grid-template-columns: 1fr;
    row-gap: 6.2rem;
  }

  .tools-box {
    margin-bottom: 12.4rem;
  }

  .company-logos {
    flex-direction: column;
    row-gap: 6.2rem;
  }

  .company-logos img {
    max-width: 15rem;
  }

  .grid-5-columns {
    grid-template-columns: 1fr;
    justify-items: center;
    row-gap: 2rem;
    margin-bottom: 2.6rem;
  }

  .footer-nav {
    text-align: center;
  }
}