* {
  font-family: nunito, Arial, Helvetica, sans-serif;
}

h1 {
  font-size: 3rem;
}

h2 {
  font-size: 2rem;
}

p {
  letter-spacing: 1.5;
  line-height: 1.5;
}

h1,
h2,
.nav-item {
  font-weight: bold;
}

#about,
#tools,
#projects,
#contact,
.contact-links {
  padding: 7% 10%;
}

.header-section,
#about,
#projects,
#footer {
  color: white;
  background-color: #040008;
}

.header-section,
.buttons,
#contact,
#footer {
  text-align: center;
}

#tools,
#contact,
.contact-links a {
  color: #040008;
}

#header {
  height: 100vh;
  display: flex;
  flex-wrap: wrap;
  flex-direction: column;
}

#top-background {
  width: 100%;
  height: 100vh;
  z-index: -1;
  position: absolute;
  background-image: url("https://images.unsplash.com/photo-1506318137071-a8e063b4bec0?ixlib=rb-1.2.1&ixid=eyJhcHBfaWQiOjEyMDd9&auto=format&fit=crop&w=1070&q=80");
  background-size: cover;
  background-position: center;
}

.nav-container {
  padding: 4% 10%;
}

.navbar-brand {
  font-size: 2.5rem;
  font-family: "Caveat", cursive;
}

.nav-item {
  margin: 0 12px;
  font-size: 1.2rem;
  transition: linear 0.1s;
}

.nav-item:hover {
  border-bottom: 3px solid white;
}

.btn {
  margin: 4px;
}

.header-section {
  margin: auto 0;
  background: none;
}

#about img {
  max-width: 300px;
  border-radius: 100%;
}

.buttons {
  padding: 6px;
}

#tools img {
  width: 150px;
  padding: 3%;
}

.card {
  width: 70%;
  padding: 2% 0;
  background: none;
}

.contact-links a {
  margin: 30px 50px;
}

.carousel {
  padding: 7% auto;
}

#footer {
  padding: 2% 10%;
  font-weight: 600;
}

@media (max-width: 992px) {
  #about {
    text-align: center;
  }

  #tools img {
    width: 110px;
  }
}

@media (max-width: 576px) {
  #tools img {
    width: 90px;
    margin: 15px;
  }
}