html {
  margin: 0;
  padding: 0;
  font-family: Arial, Helvetica, sans-serif;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
}

header {
  background-color: black;
  height: 120px;
  padding: 30px;
  text-align: center;
}

header img {
  height: 100%;
}

main {
  margin-top: 50px;
}

a {
  color: black;
}

h1 {
  text-align: center;
}

.jumbo {
  width: 100%;
  height: 400px;
  margin-top: 50px;
  display: block;
  object-fit: cover;
  object-position: center;
}

.introduction {
  font-size: 1.8rem;
  line-height: 2.2rem;
  width: 400px;
  margin: 0 auto;
  text-align: center;
}

.services-header {
  font-weight: 800;
  text-align: center;
}

.services {
  line-height: 1.4rem;
  text-align: left;
  margin: 40px auto 0 auto;
}

.services-list {
  list-style-type: none;
  padding-left: 0;
  display: flex;
  justify-content: center;
}

.services-list li {
  display: flex;
  margin: 7px 15px 0 15px;
}

.services-list li img {
  padding-right: 5px;
}

.contact {
  text-align: center;
}

.cta {
  margin-top: 40px;
  font-weight: 800;
}

.email {
  display: block;
  margin-top: 20px;
}

.references-wrapper {
  background-image: linear-gradient(black, black),
    url("./assets/background-image.jpg");
  background-blend-mode: saturation;
  height: 400px;
  margin-top: 50px;
  background-position: bottom;
  background-size: cover;
  position: relative;
}

.references-wrapper h2 {
    color: white;
    text-align: center;
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.6rem;
}

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

.references > audio {
  margin: 0 20px;
}

.impressum {
  width: 80%;
  max-width: 800px;
  margin: 0 auto;
  margin-bottom: 40px;
}

.impressum h2 {
  font-size: 1.1rem;
}

footer {
  background-color: black;
  color: white;
  padding: 20px;
  text-align: center;
  font-size: 0.8rem;
}

footer a {
  color: white;
}

@media only screen and (max-width: 600px) {
  .introduction {
    text-align: left;
    width: 80%;
    font-size: 1.6rem;
    line-height: 2rem;
  }

  .services,
  .contact {
    width: 80%;
    margin-left: auto;
    margin-right: auto;
  }

  .services-header {
    text-align: left;
  }

  .services-list {
    flex-direction: column;
  }

  .services-list li {
    margin-left: 0;
  }

  .contact {
    text-align: left;
  }

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

  .references > audio {
      margin: 20px 0;
  }
}