body {
  font-family: sans-serif;
  margin: 0;
  padding: 0;
  background: #7D6C5A;
  color: #5a004f;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: 20px;
  box-sizing: border-box;
  flex-direction: column;
}

ul {
  list-style-type: none;
  margin: 0;
  padding: 0;
  overflow: hidden;
  background-color: #7FAD86;
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  width: 100%;
  position: sticky;
  top: 0;
  z-index: 1000;
}

li a {
  display: block;
  color: #5a004f;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
}

li a:hover {
  background-color: #DE8D47;
}

.active {
  background-color: #7FAD86;
}

.kontejner {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  max-width: 1200px;
  width: 100%;
  justify-content: center;
  margin-top: 30px;
  padding: 0 10px;
  box-sizing: border-box;
}

.omotac-slike {
  flex: 1 1 300px;
  max-width: 600px;
}

.omotac-slike img {
  width: 100%;
  height: auto;
  border: 4px solid #DE8D47;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.sadrzaj-teksta {
  flex: 1 1 300px;
  max-width: 800px;
  background-color: #7FAD86;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(66, 0, 0, 0.08);
  box-sizing: border-box;
}

.sadrzaj-teksta h1 {
  color: #7838FC;
  margin-top: 0;
  font-family: 'Times New Roman', serif;
  font-size: 2.5rem;
}

.sadrzaj-teksta p {
  line-height: 1.6;
  margin-bottom: 1.2em;
}

.unos-kuta {
  margin-top: 30px;
}

input[type="number"],
input[type="submit"] {
  padding: 10px;
  font-size: 1rem;
  margin-top: 10px;
  border: 2px solid #DE8D47;
  border-radius: 5px;
  vertical-align: middle;
}

input[type="submit"].gumb-submit {
  background-color: #DE8D47;
  color: #5a004f;
  cursor: pointer;
  transition: background 0.3s;
  margin-left: 10px;
  min-width: 100px;
}

input[type="submit"].gumb-submit:hover {
  background-color: #d87a2f;
}

.rezultat {
  margin-top: 15px;
  font-weight: bold;
  word-wrap: break-word;
}

footer {
  background-color: #6DAD7D;
  color: #fff;
  width: 100%;
  max-width: 800px;
  margin: 20px auto;
  padding: 20px;
  text-align: center;
  box-sizing: border-box;
  border-radius: 10px;
}

/* Responzivne postavke */
@media (max-width: 768px) {
  ul {
    flex-direction: column;
    align-items: center;
  }

  .kontejner {
    flex-direction: column;
    gap: 20px;
  }

  .sadrzaj-teksta h1 {
    font-size: 2rem;
    text-align: center;
  }

  footer {
    padding: 15px;
  }
}

@media (max-width: 480px) {
  input[type="number"],
  input[type="submit"] {
    width: 100%;
    margin-top: 10px;
    margin-left: 0;
  }

  input[type="submit"].gumb-submit {
    margin-top: 10px;
  }

  .sadrzaj-teksta {
    padding: 15px;
  }
}