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

html {
  overflow-x: visible;
  width: 100%;
}

.section {
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
  min-height: 80vh;
}

body {
  font-family: "Nunito Sans", sans-serif;
  background-color: #f8f8f8;
  margin: 0;
  padding: 0;
  max-width: 100%;
  overflow-x: hidden;
  width: 100%;
  position: relative;
}
a {
  text-decoration: none;
  color: inherit;
}

header {
  background-color: #97c7bf;
  padding: 10px 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
h1 {
  font-family: "Mozilla Headline", sans-serif;
  font-size: 48px;
}
header h1 {
  color: #af3903;
  text-align: center;
  margin: 0;
  font-family: "Mozilla Headline", sans-serif;
}

#hero {
  text-align: center;
  max-height: 400px;
  background-color: #a197c7;
}
#hero img {
  width: 100%;
  height: auto;
  max-height: 400px;

  object-fit: cover;
  margin: 0;
  max-width: 100%;
}
nav {
  margin-top: 0px;
  background-color: #97c7bf;
  width: 100%;
  max-width: 100%;
  position: sticky;
  top: 0;
  z-index: 100;
}
nav ul {
  max-width: 700px;
  margin: auto;
  list-style-type: none;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  padding: 0;

  width: 100%;
}
nav ul li {
  padding: 10px;

  cursor: pointer;
  transition: 0.3s;
  text-decoration: none;
  color: #333;
  font-weight: bold;
  font-size: 18px;
  transition: 0.3ms;
}
nav ul li:hover,
nav ul li.active {
  background-color: #af3903;
  transition: 0.3s;
  color: #f8f8f8;
  transition: 0.3s;
}

footer {
  background-color: #97c7bf;
  padding: 10px 0;
  width: 100%;
  max-width: 100%;
  overflow-x: hidden;
}
footer span {
  display: block;
  text-align: center;
  color: #333;
  font-size: 18px;
  font-weight: bold;
}

@media (max-width: 900px) {
  h1 {
    font-size: 36px;
  }
  nav ul {
    max-width: 560px;
  }
  nav ul li {
    font-size: 16px;
  }
}
@media (max-width: 700px) {
  nav ul {
    max-width: 100%;
    padding: 0 10px;
  }
  nav ul li {
    padding: 8px 4px;
    font-size: 14px;
  }
  #hero img {
    max-height: 20s0px;
  }
}

@media (max-width: 500px) {
  nav ul li {
    padding: 6px 2px;
    font-size: 12px;
  }
  header h1 {
    font-size: 32px;
  }
  #hero img {
    max-height: 100px;
  }
}

.github {
  width: 60px;
  height: 60px;
  background-color: #017dcf;
  padding: 3px;
  border-radius: 50%;
  position: fixed;
  bottom: 20px;
  right: 20px;
  text-align: center;
}
.github i {
  color: #f8f8f8;
  font-size: 36px;
  line-height: 54px;
}