html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  font-family: sans-serif;
}

#map {
  height: 100%;
  width: 100%;
  z-index: 1;
}

/* Overlay with blur and transparency */
.overlay {
  position: absolute;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(3px);
  padding: 1rem 2rem;
  border-radius: 10px;
  text-align: center;
  z-index: 999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.overlay h1 {
  font-size: 1.5rem;
  margin: 0 0 0.1rem;
  font-weight: 600;
  color: #1a1a1a;
}

.overlay a {
  font-size: 0.9rem;
  color: #0066cc;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.overlay a:hover {
  color: #004c99;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .overlay {
    width: 90%;
    padding: 15px;
  }

  .overlay h1 {
    font-size: 1.5rem;
  }

  .overlay a {
    font-size: 0.9rem;
  }
}