:root {
  --font-family: "Lato", sans-serif;
  --second-family: "Red Hat Display", sans-serif;
  --black: #000;
  --gray100: #f4f4f4;
  --gray500: #7b7b7b;
  --gray700: #565656;
}

img {
  width: 100%;
  block-size: auto;
  object-fit: cover;
}

.desctop,
.tablet {
  display: none;
}

.container {
  padding-inline: 10px;
}

.logo {
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 16px;
  line-height: 150%;
  letter-spacing: 0.5em;
  color: var(--black);
  margin-top: 18px;
}

h1 {
  font-family: var(--second-family);
  font-weight: 600;
  font-size: 30px;
  line-height: 167%;
  letter-spacing: 0.05em;
  color: var(--black);
  margin-block: 18px 40px;
}

h2 {
  font-family: var(--second-family);
  font-weight: 600;
  font-size: 26px;
  line-height: 166%;
  letter-spacing: 0.1em;
  color: var(--black);
  margin-block: 40px 70px;
}

p {
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 16px;
  line-height: 200%;
  letter-spacing: 0.05em;
  color: var(--gray700);
}

.hero p:first-of-type {
  margin-bottom: 48px;
}

.user_research p:first-of-type,
.sketches p:first-of-type {
  margin-block: 20px 40px;
}

.final p:first-of-type {
  margin-block: 20px 70px;
}

footer {
  padding-block: 50px;
  background-color: var(--gray100);
  text-align: center;
}

h3 {
  font-family: var(--second-family);
  font-weight: 400;
  font-size: 32px;
  letter-spacing: 0.05em;
  color: var(--black);
  margin-bottom: 20px;
}

.constacts-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contacts {
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 18px;
  line-height: 166%;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--black);
}

.contacts:last-of-type {
  margin-block: 15px 40px;
}

.social {
  display: flex;
  gap: 23px;
  justify-content: center;
  margin-bottom: 40px;
}

.social a {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 50px;
  width: 50px;
  border: 1px solid var(--gray700);
}

.social a:hover {
  background-color: var(--gray700);
}

.icon {
  height: 24px;
  width: 100%;
  color: var(--gray700);
}

.social a:hover .icon {
  color: #fff;
}

.copyriting {
  font-family: var(--font-family);
  font-weight: 400;
  font-size: 16px;
  line-height: 166%;
  letter-spacing: 0.1em;
  text-align: center;
  color: var(--black);
}

@media (min-width: 768px) {
  .container {
    padding-inline: 33px;
  }

  .mobile {
    display: none;
  }

  .tablet {
    display: block;
  }

  h1 {
    margin-block: 68px 50px;
  }

  :first-of-type > h2 {
    margin-block: 90px 50px;
  }

  h2 {
    margin-block: 70px 50px;
  }

  h3 {
    font-size: 48px;
    line-height: 133%;
  }

  p {
    font-size: 19px;
    line-height: 168%;
    letter-spacing: 0.1em;
  }

  .short {
    width: 700px;
  }
}

@media (min-width: 1440px) {
  .container {
    padding-inline: 135px;
  }

  .tablet {
    display: none;
  }

  .desctop {
    display: block;
  }

  h1 {
    font-size: 48px;
    line-height: 133%;
    margin-block: 38px 70px;
  }

  .logo {
    margin-top: 38px;
  }

  h2 {
    margin-block: 90px 50px;
  }
  h3 {
    text-align: left;
    margin-bottom: 42px;
  }

  .footer-wrap {
    display: flex;
    justify-content: space-between;
  }

  .constacts-wrap {
    align-items: start;
  }

  .social {
    margin-top: -50px;
  }
}