* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html,
body {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
.header {
  display: flex;
  justify-content: center;
  gap: 150px;
  height: 25vh;
  text-align: center;
  align-items: center;
}
h1 {
  font-size: 40px;
  font-weight: lighter;
}
h2 {
  font-size: 30px;
  text-align: center;
}
hr {
  width: 700px;
  margin: 0 auto;
  border-bottom: 3px solid black;
}

nav ul {
  list-style-type: none;
}

nav a {
  color: black;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  text-decoration: none;
}
h2 {
  text-align: center;
}
.pica {
  height: 45vh;
  border: 3px solid black;
  margin: 60px 300px;
  text-align: center;
  box-shadow: 10px 10px 10px gray;
}
a {
  text-decoration: none;
  color: black;
  cursor: pointer;
}
a:hover {
  color: gray;
}
footer {
  height: 10vh;
  padding: 10px;
  text-align: center;
}
footer img {
  width: 25px;
}
@media (max-width: 768px) {
  .header {
    height: auto;
    min-height: 300px;
    flex-direction: column;
    padding: 20px;
    gap: 20px;
  }
  h1 {
    font-size: 60px;
  }
  .pica {
    max-width: 80%;
    max-width: 450px;
    height: auto;
    align-items: center;
    margin: 0;
  }
  .pica h2 {
    font-size: 20px;
  }
  .pica h3 {
    font-size: 15px;
  }
  .pica a {
    font-size: 14px;
  }

  footer {
    height: auto;
    padding: 15px;
  }
}