:root {
  --bg-color: #fafafa;
  --primary-color: #4d96a9;
  --primary-btn-text-color: #8fe3f1;
  --primary-btn-hover: #71c0d4;
  --secondary-color: #855fb1;
  --secondary-btn-text-color: #d9b8ff;
  --secondary-btn-hover: #b18bdd;
  --dark-text-color: #28283d;
  --gray-text-color: #87879d;
}

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

body,
h1,
h2,
h3,
p {
  margin: 0;
  padding: 0;
}

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

img {
  max-width: 100%;
  display: block;
}

body {
  position: relative;
  background-color: var(--bg-color);
  font-family: "Red Hat Display", sans-serif;
  font-size: 16px;
  text-align: center;
  min-height: 100vh;
}

h1 {
  color: var(--dark-text-color);
  font-size: 40px;
  line-height: 44px;
  font-weight: 900;
}

h2 {
  color: var(--dark-text-color);
  font-size: 36px;
  line-height: 32px;
  font-weight: 900;
}

p {
  color: var(--gray-text-color);
  font-size: 16px;
  line-height: 26px;
}

.overline {
  color: var(--primary-color);
  font-size: 16px;
  line-height: 26px;
  letter-spacing: 4px;
  font-weight: 900;
  text-transform: uppercase;
}

.btn {
  font-size: 16px;
  line-height: 26px;
  color: #ffffff;
  border-radius: 29px;
  border: none;
  font-weight: 900;
  letter-spacing: 0.2px;
}

.version {
  color: var(--primary-btn-text-color);
}

.version-primary {
  color: var(--primary-btn-text-color);
}

.btn-primary {
  padding: 16px 40px;
  background-color: var(--primary-color);
}

.btn-primary:hover {
  background-color: var(--primary-btn-hover);
}

.btn-secondary {
  padding: 16px 30px;
  background-color: var(--secondary-color);
}

.btn-secondary:hover {
  background-color: var(--secondary-btn-hover);
}

.version-secondary {
  color: var(--secondary-btn-text-color);
}

header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 48px 24px;
  margin-bottom: 0;
}

.header-content {
  margin: 0 24px;
  max-width: 457px;
  padding: 0 24px;
}

.header-desktop-container {
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.logo {
  margin-bottom: 54px;
}

.hero-img-mobile {
  height: 153px;
  width: 414px;
  background-image: url("./assets/tablet/image-hero.png");
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  margin-bottom: 48px;
}

h1 {
  margin-bottom: 24px;
}

.header-text {
  margin-bottom: 32px;
}

.btn-primary {
  margin-bottom: 16px;
}

.btn-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 64px;
}

.transition-container-main {
  margin-bottom: 64px;
}

.transition-line {
  margin: 0 auto;
  height: 84px;
  background-color: #87879d40;
  width: 1px;
}

.transition-num {
  font-weight: bold;
  margin: 0 auto;
  height: 55px;
  width: 55px;
  color: var(--gray-text-color);
  border: 1px solid #87879d40;
  border-radius: 100%;
  background-color: var(--bg-color);
  display: flex;
  align-items: center;
  justify-content: center;
}

main {
  padding: 0 24px;
  margin-bottom: 176px;
}

.img-container {
  display: grid;
  grid-template-columns: repeat(2, 150px);
  gap: 25px;
  margin-bottom: 64px;
  justify-content: center;
}

.grid-img {
  display: inline-block;
  border-radius: 8px;
}

.main-text {
  margin: 0 auto;
  max-width: 573px;
}

.overline {
  margin-bottom: 24px;
}

.main-h2 {
  margin-bottom: 32px;
}

footer {
  background-image: url("/assets/mobile/image-footer.jpg");
  background-repeat: no-repeat;
  background-size: cover;
  background-position: center;

  position: relative;
}

.footer-overlay {
  background-color: #4d96a9bf;
  padding: 24px;
}

.footer-h2 {
  color: var(--bg-color);
  margin-top: 92px;
  margin-bottom: 24px;
}

.footer-p {
  color: var(--bg-color);
  margin-bottom: 32px;
}

.footer-btn {
  margin-bottom: 64px;
}

.footer-transition-container {
  position: absolute;
  top: -112px;
  left: 0;
  right: 0;
  margin: 0 auto;
}

.attribution {
  text-align: center;
  width: 100%;
  color: var(--dark-text-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
}

a {
  text-decoration: none;
  color: var(--bg-color);
}
.name {
  color: orange;
}

@media screen and (min-width: 768px) {
  .btn-container {
    flex-direction: row;
    align-items: center;
    justify-content: center;
    margin-bottom: 80px;
  }

  .btn-primary {
    margin-bottom: 0;
    margin-right: 16px;
  }

  .hero-img-mobile {
    height: 303px;
    width: 820px;
  }

  h1 {
    font-size: 48px;
    line-height: 48px;
  }

  h2 {
    font-size: 40px;
    line-height: 44px;
  }

  p {
    font-size: 18px;
  }

  main {
    margin-bottom: 192px;
  }

  .img-container {
    grid-template-columns: repeat(4, 165px);
    gap: 11px;
    margin-bottom: 40px;
  }

  .grid-img {
    height: auto;
  }

  .main-text {
    max-width: 540px;
  }

  footer {
    background-image: url("./assets/tablet/image-footer.jpg");
  }

  .footer-h2 {
    margin-bottom: 32px;
  }

  .footer-p {
    margin: 0 auto;
    max-width: 573px;
    margin-bottom: 40px;
  }
}

@media screen and (min-width: 1400px) {
  header {
    margin-top: 80px;
  }

  .header-content {
    max-width: 540px;
    height: 304px;
  }

  .hero-img-mobile {
    display: none;
  }

  .header-desktop-container {
    flex-direction: row;
    margin-bottom: 110px;
  }

  .hero-img-desktop-left {
    width: 400px;
    height: 320px;
    background-image: url("./assets/desktop/image-hero-left.png");
    background-position: center;
    background-position-x: -10px;
    background-size: contain;
    background-repeat: no-repeat;
  }

  .hero-img-desktop-right {
    width: 400px;
    height: 320px;
    background-image: url("./assets/desktop/image-hero-right.png");
    background-position: center;
    background-position-x: 10px;
    background-size: cover;
    background-repeat: no-repeat;
  }

  .img-container {
    grid-template-columns: repeat(4, 255px);
    gap: 30px;
    margin-bottom: 80px;
  }

  h1 {
    font-size: 64px;
    line-height: 64px;
  }

  p {
    font-size: 18px;
  }

  footer {
    background-image: url("./assets/desktop/image-footer.jpg");
    height: 308px;
  }

  .footer-overlay {
    height: 100%;
  }

  .footer-h2,
  .footer-p,
  .footer-btn {
    margin: 0;
  }

  .footer-h2 {
    max-width: 350px;
  }

  .footer-p {
    max-width: 350px;
    margin-left: 120px;
    margin-right: 92px;
  }

  .footer-btn {
    width: 193px;
    height: 58px;
  }

  .footer-content {
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
  }
}