* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", sans-serif;
}

/* Vollbild-Hintergrund */
body {
  height: 100vh;
  background: url("https://images.unsplash.com/photo-1504384308090-c894fdcc538d")
              no-repeat center center/cover;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  overflow: hidden;
}

/* leichter dunkler Overlay für bessere Lesbarkeit */
body::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(0,0,0,0.3), rgba(0,0,0,0.8));
}

/* zentrierter Inhalt */
.overlay {
  position: relative;
  text-align: center;
  backdrop-filter: blur(6px);
  padding: 40px 60px;
  border-radius: 20px;
  background: rgba(0,0,0,0.25);
  box-shadow: 0 0 40px rgba(0,0,0,0.5);
}

/* großes AI */
h1 {
  font-size: 6rem;
  letter-spacing: 0.2em;
  font-weight: 300;
}

/* subtile Eingabe-Andeutung */
.hint {
  margin-top: 10px;
  font-size: 1.2rem;
  opacity: 0.7;
  letter-spacing: 0.1em;
  position: relative;
}

/* blinkender Cursor */
.hint::after {
  content: "|";
  margin-left: 5px;
  animation: blink 1s infinite;
}

@keyframes blink {
  0%, 50%, 100% { opacity: 1; }
  25%, 75% { opacity: 0; }
}