body {
  font-family: 'Roboto', Arial, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f8f9fa;
}

#header {
  background-color: #343a40;
  color: #ffffff;
  text-align: center;
  padding: 20px 0;
}

#header h1 {
  font-size: 36px;
  font-weight: bold;
  margin: 0;
}

#navigation {
  background-color: #212529;
  color: #ffffff;
  text-align: center;
  padding: 10px 0;
}

#navigation a {
  color: #ffffff;
  text-decoration: none;
  margin: 0 20px;
  font-weight: bold;
  font-size: 18px;
  transition: color 0.3s ease;
}

#navigation a:hover {
  color: #ffc107;
}

#picture {
  text-align: center;
  margin-top: 20px;
}

#picture img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

#gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-around;
  margin: 20px auto;
  max-width: 1200px;
}

.gallery-item {
  width: 30%;
  margin: 20px 0;
  text-align: center;
}

.gallery-item img {
  max-width: 100%;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.image-text {
  color: #495057;
  font-weight: bold;
  font-size: 16px;
}

#footer {
  background-color: #343a40;
  color: #ffffff;
  text-align: center;
  padding: 20px 0;
  width: 100%;
  position: relative;
  margin-top: 20px;
}

@media screen and (max-width: 992px) {
  .gallery-item {
      width: 40%;
  }
}

@media screen and (max-width: 768px) {
  #navigation a {
      margin: 0 10px;
  }
}