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

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background:
    radial-gradient(circle at top left, rgba(43,188,255,0.2), transparent),
    radial-gradient(circle at bottom right, rgba(255,255,255,0.1), transparent),
    linear-gradient(135deg, #0a0a0a, #111);
  color: white;
  overflow: hidden;
}

.header {
  position: fixed;
  top: 20px;
  left: 0;
  width: 100%;
  padding: 0 30px;
  z-index: 10;
}

.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  padding: 12px 20px;

  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.12);
}

.logo {
  height: 40px;
  width: auto;
  cursor: pointer;
}

#nav {
  display: flex;
  gap: 15px;
  margin-left: auto;
  margin-right: 15px;
}

#nav a {
  text-decoration: none;
  color: white;
  padding: 6px 12px;
  border-radius: 10px;
  transition: 0.2s ease;
}

#nav a:hover {
  background: rgba(255,255,255,0.1);
}

.bg {
  position: absolute;
  border-radius: 50%;
  filter: blur(50px);
}

.shape1 {
  width: 250px;
  height: 250px;
  background: rgba(43,188,255,0.2);
  top: 10%;
  left: 10%;
}

.shape2 {
  width: 300px;
  height: 300px;
  background: rgba(255,255,255,0.08);
  bottom: 10%;
  right: 10%;
}

.main-box {
  position: relative;
  z-index: 1;
  width: 360px;
  padding: 35px;
  border-radius: 22px;
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  text-align: center;
}

.main-box h1 {
  margin-bottom: 15px;
}

.main-box h3 {
  margin-bottom: 10px;
}

#message {
  margin-bottom: 15px;
  min-height: 20px;
  font-weight: 600;
}

button {
  width: 100%;
  max-width: 250px;
  padding: 12px;
  margin-left: 20px;
  margin-bottom: 20px;
  
  border-radius: 12px;
  border: none;
  background: #2bbcff;
  color: white;
  font-weight: 600;
  cursor: pointer;

  display: flex;
  align-items: center;     /* Zentriert Text und Bild vertikal auf einer Linie */
  justify-content: center; /* Zentriert den Inhalt horizontal */
  gap: 20px;               /* Erzeugt einen sauberen Abstand zwischen Text und Logo */
  font-size: 16px;         /* Hier kannst du die Textgröße direkt steuern */
}

#btnFabs {
  position: relative;
  padding: 15px;
  border: 3px solid transparent;
  border-radius: 15px;

  /* Erster Gradient ist jetzt die Mitte (animiert), zweiter der Rahmen (statisch) */
  background-image: linear-gradient(to right, red, blue, red), 
                    linear-gradient(to bottom right, red, blue);
  
  background-clip: padding-box, border-box;
  background-origin: padding-box, border-box;
  
  /* Die Mitte (erster Wert) machen wir 200% breit für die Bewegung */
  background-size: 200% 100%, 100% 100%;
  
  animation: moveCenter 3s linear infinite;
}

#btnFabs:hover {
    background-image: linear-gradient(to right, #ff3c3c, #3c3cff, #ff3c3c), 
                      linear-gradient(to bottom right, #a6ff00, #00fff2);
}

@keyframes moveCenter {
  0% { background-position: 0% 0%, 0% 0%; }
  100% { background-position: 200% 0%, 0% 0%; }
}
button img{
  width: 65px;
  height: auto;
}

button:hover {
  background: #54cfff;
}
.extra {
  margin-top: 18px;
  text-align: center;
  font-size: 14px;
  color: #bdbdbd;
}