function changeGreeting() {
  const greeting = document.getElementById("greeting");
  const hour = new Date().getHours();

  if (hour < 12) {
    greeting.textContent = "Guten Morgen und willkommen!";
  } else if (hour < 18) {
    greeting.textContent = "Guten Tag und schön, dass du da bist!";
  } else {
    greeting.textContent = "Guten Abend und viel Spass hier!";
  }
}

function changeBackground() {
  const colors = [
    "linear-gradient(135deg, #74ebd5, #9face6)",
    "linear-gradient(135deg, #ff9a9e, #fad0c4)",
    "linear-gradient(135deg, #a18cd1, #fbc2eb)",
    "linear-gradient(135deg, #f6d365, #fda085)"
  ];

  const randomColor = colors[Math.floor(Math.random() * colors.length)];
  document.body.style.background = randomColor;
}

function toggleText() {
  const text = document.getElementById("fun-text");

  if (text.style.display === "none") {
    text.style.display = "block";
  } else {
    text.style.display = "none";
  }
}