* {
  box-sizing: border-box;
  font-family: system-ui, sans-serif;
}

body {
  margin: 0;
  background: #f5f6f8;
}


header {
  height: 48px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px;
  backdrop-filter: blur(6px);
  background: rgba(0,0,0,0.35);
  box-shadow: 0 4px 12px rgba(0,0,0,0.35);
  overflow: visible;
  position: relative;
  z-index: 100;
}

.logo {
  font-weight: bold;
}

.right-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
}

.user {
  display: flex;
  align-items: center;
}

#emergency-stop {
  display: none;
  opacity: 0;                       /* Startwert – Fade-Dauer wird per JS gesetzt */
  position: relative;
  width: 78px;
  height: 78px;
  cursor: pointer;
  flex-shrink: 0;
  transition: transform 0.1s ease;
}

#emergency-stop:hover svg {
  filter: brightness(1.12);
}

#emergency-stop:active {
  transform: scale(0.93);
}

nav button {
  background: transparent;
  border: none;
  color: white;
  cursor: pointer;
  padding: 8px 12px;
}

nav button:hover {
  background: rgba(255,255,255,0.15);
  border-radius: 6px;
}

main { 
  background: transparent; /* NEU */
  position: relative;
}



iframe {
  border: none;
  display: block;
  width: 100%;
  height: calc(100vh - 48px); /* exakt der Bereich unter dem Header */
}


nav button.active {
  background: rgba(255,255,255,0.35);
  border-radius: 6px;
}

#service-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-top: 40px;
}

.service-card {
  background: white;
  padding: 20px;
  border-radius: 10px;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.08);
}


#login-modal {
  position: fixed;
  top: 10%;
  left: 10%;
  transform: translate(-10%, -10%)
  
  background: white;
  padding: 20px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}

#login-btn {
  width: 70px;   /* oder 80 / 100 px – wie du willst */
  text-align: center;
}