.overlay {
  height: 100%;
  width: 0;
  position: fixed;
  z-index: 999999;
  top: 0;
  left: 0;
  background-color: rgba(0,0,0, 0.9);
  overflow-x: hidden;
  transition: 0.5s;
}

.overlay-content {
  position: relative;
  top: 10%;
  width: 100%;
  text-align: center;
  margin-top: 30px;
}

.overlay a {
  padding: 8px;
  text-decoration: none;
  font-size: 150%;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.overlay div {
  padding: 8px;
  text-decoration: none;
  font-size: 120%;
  color: #818181;
  display: block;
  transition: 0.3s;
}

.overlay a:hover, .overlay a:focus {
  color: #f1f1f1;
}

.overlay .closebtn {
  position: absolute;
  top: 20px;
  right: 45px;
  font-size: 40px;
}

/* Mobile input fields - easier to tap */
.overlay input[type="number"] {
  font-size: 18px;
  padding: 10px;
  width: 150px;
  margin: 5px;
  border: 1px solid #555;
  border-radius: 5px;
  background-color: #333;
  color: #fff;
}

/* Map layout images - better touch targets */
.overlay img {
  margin: 8px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 0.3s;
}

.overlay img:hover {
  border-color: #fff;
}

@media screen and (max-height: 450px) {
  .overlay a {font-size: 20px}
  .overlay .closebtn {
  font-size: 40px;
  top: 15px;
  right: 35px;
  }
}

/* Mobile-specific styles */
@media screen and (max-width: 768px) {
  /* Larger hamburger menu for easier tapping */
  .hamburger-icon {
    font-size: 50px !important;
    padding: 10px;
  }

  /* Larger map on mobile */
  #map {
    height: 70vh !important;
    min-height: 400px;
  }

  /* Bigger buttons on mobile */
  .btn {
    font-size: 18px !important;
    padding: 12px 24px !important;
  }

  /* Larger text for better readability */
  .display-5 {
    font-size: 1.8rem !important;
  }

  .display-8 {
    font-size: 1.2rem !important;
  }

  /* Better spacing for overlay inputs */
  .overlay input[type="number"] {
    font-size: 20px;
    padding: 12px;
    width: 180px;
    margin: 8px;
  }

  /* Overlay content adjustments */
  .overlay-content {
    top: 5%;
    overflow-y: auto;
    max-height: 90vh;
  }

  /* Larger close button */
  .overlay .closebtn {
    font-size: 60px;
    right: 25px;
    top: 10px;
  }

  /* Map layout images - larger touch targets */
  .overlay img {
    width: 80px;
    height: 80px;
    margin: 10px;
  }

  /* Container padding */
  .container {
    padding: 10px;
  }
}

/* Extra small devices */
@media screen and (max-width: 480px) {
  .hamburger-icon {
    font-size: 45px !important;
  }

  #map {
    height: 60vh !important;
    min-height: 350px;
  }

  .display-5 {
    font-size: 1.5rem !important;
  }

  .overlay img {
    width: 70px;
    height: 70px;
    margin: 8px;
  }
}

/* Improve touch targets for Leaflet markers on mobile */
@media (hover: none) and (pointer: coarse) {
  .leaflet-marker-icon {
    cursor: pointer;
  }

  /* Add more space around interactive elements */
  .leaflet-interactive {
    cursor: pointer;
  }
}

/* Marker hover and interaction effects */
.leaflet-marker-icon {
  cursor: pointer;
}

/* Fade-in animation for new rounds */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.5s ease-in;
}

/* Success/Error feedback animations removed to prevent marker issues */

/* Smooth transitions for city name changes */
#city_name {
  transition: color 0.3s ease, transform 0.3s ease;
}

#city_name.correct {
  color: #28a745;
  transform: scale(1.05);
}

#city_name.incorrect {
  color: #dc3545;
  transform: scale(1.05);
}

/* Social share buttons */
#social_share_buttons .btn {
  min-width: 36px;
  padding: 5px 10px;
  font-weight: bold;
}

/* Mobile adjustments for social share buttons */
@media screen and (max-width: 768px) {
  #social_share_buttons {
    margin-bottom: 10px;
  }

  #social_share_buttons .btn {
    min-width: 44px;
    padding: 8px 12px;
    font-size: 16px;
  }
}