.image1 {
  width: 100px;
  border-radius: 50px;
  float: left;
  margin-right: 10px;
}

.username {
  font-weight: bold;
}
.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  height: 100vh;
  background-image: url('../images/heropilt1.jpg'),
    linear-gradient(to top, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0) 100%);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  background-blend-mode: overlay;
  font-size: 2vw;
}
.hero-content {
  position: relative;
  z-index: 3;
  color: white;
  text-align: center;
  padding: 2rem;
  font-size: 2vw;
}
.logo {
  position: absolute;
  width: 30vw;
  min-width: 60px;
  max-width: 200px;
  height: auto;
  top: 0vw;
  left: 2vw;
}
#sissejuhatus {
  position: relative;
  left: 0;
  right: 0;
  z-index: 1;
  background-color: rgb(0, 0, 0);
  padding: 6rem 7rem 2rem 5rem;
}

#teooria {
  position: relative;
  z-index: 2;
  background-color: rgb(0, 0, 0);
  padding-bottom: 100px;
  padding-left: 5rem;
  
}
#kontakt {
  position: relative;
  background-color: rgb(0, 0, 0);
  padding-bottom: 2rem;
  display: grid;
  padding-left: 5rem;
}
.kontakt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: start;
}
.kontakt-images {
  display: grid;
  grid-template-columns: 200px 200px;
  gap: 1rem;
  align-items: start;
}
.kontakt-images img {
  width: 150px;
  height: 150px;
  border-radius: 20px;
  object-fit: cover;
  cursor: pointer;
  transition: transform 0.3s ease;
  margin: 0;
  padding: 0;
}
.image-block {
  text-align: center;
}

.kontakt-images img:hover {
  transform: scale(1.05);
}
.image-title {
  margin-bottom: 0.5rem;
  font-weight: bold;
  font-size: 1rem;
  color: white;
}

footer {
  background-color: rgba(0, 0, 0);
  color: white;
  padding-bottom: 20px;
  padding-top: 100px;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
  line-height: 1.6;
  padding: 2rem;
}
h1,
h2,
h3,
p {
  margin: 0 0 1rem;
}
html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  width: 100%;
}
nav {
  position: relative;
  z-index: 2;
  top: -5vh;
}
nav ul {
  display: flex;
  justify-content: center;
  list-style: none;
  padding: 0;
}
nav ul li {
  margin: 0 20px;
}

nav a {
  color: white;
  text-decoration: none;
  font-size: 1.2rem;
  font-weight: bold;
}
a:hover {
  color: rgb(40, 5, 85);
}
section {
  padding: 50px 20px;
}
section h2 {
  font-size: 2rem;
  margin-bottom: 20px;
  color: white;
}
section p {
  font-size: 1.2rem;
  color: white;
}
html {
  scroll-behavior: smooth;
}
footer {
  display: flex;
  justify-content: center;
}
@media (max-width: 600px) {
  .hero {
    padding: 1rem;
    height: 70vh;
  }
  .logo {
    width: 30vw;
    top: 0px;
    left: 0px;
  }
  .hero-content h1 {
    font-size: 10vw;
  }
  .hero-content p {
    font-size: 5vw;
  }
  nav ul {
    flex-direction: column;
    gap: 1rem;
    padding: 1rem;
  }
  nav ul li {
    margin: 0;
  }
  .kontakt-grid {
    grid-template-columns: 1fr;
  }
  .kontakt-images {
    grid-template-columns: repeat(2, 1fr);
  }
  .image-block {
    width: 100%;
  }
  .image-block img {
    width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 20px;
  }
  .kontakt-images img {
    max-width: 100%;
    aspect-ratio: 1 / 1;
    object-fit: cover;
    border-radius: 20px;
    transition: transform 0.3s ease;
  }
  .kontakt-images img:hover,
  .kontakt-images a:focus img {
    transform: scale(1.05);
    outline: 3px solid rgb(40, 5, 85);
    outline-offset: 4px;
  }
  .image-title {
    font-size: 0.85rem;
    margin-bottom: 0.5rem;
  }
  #sissejuhatus{
    padding: 2rem;
  }
  #teooria {
    padding: 2rem;
  }
  #kontakt {
    padding: 2rem;
  }
  .back-to-top {
    bottom: 10px;
    right: 10px;
  }
  .back-to-top img {
    width: 28px;
    height: 28px;
  }
  }
.back-to-top {
  position: fixed;
  bottom: 50px;
  right: 50px;
  z-index: 1000;
  transition: opacity 0.3s ease;
  opacity: 0.7;
  cursor: pointer;
}
.back-to-top:hover {
  opacity: 1;
}
.back-to-top img {
  filter: invert(1);
  width: 32px;
  height: 32px;
  display: block;
}
section video {
  width: 100%;
  max-width: 600px;
  height: auto;
  display: block;
  margin: 2rem auto;
}
.sissejuhatus-content {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: flex-start;
}
.text-content {
  flex: 1 1 50%;
}
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: #000;
  color: #fff;
  padding: 8px 16px;
  z-index: 1000;
  text-decoration: none;
  transition: top 0.3s ease;
}
.skip-link:focus {
  top: 10px;
}