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

body, html {
  height: 100%;
}
.uvod {
  background-image: url('grafika_tws/driftkurz/ralfs-blumbergs--EXF9shcTO0-unsplash.jpg'); 
  background-size: cover;
  background-position: center;
  height: 100vh;
  width: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  color: white;
  text-shadow: 2px 2px 5px black;
  font-size: 3rem;
  text-align: center;
}

.uvod-h1 {
  font-size: 5rem;
  font-family: 'Arial Black', sans-serif;
  text-shadow: 3px 3px 8px rgba(0, 0, 0, 0.7);
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.uvod-content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.back-link {
  color: white;
  font-size: 1.2rem;
  text-decoration: none;
  font-family: Arial, sans-serif;
  text-align: center;
}