* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  overflow: hidden;
  background: #0a0a1a;
  font-family: 'Rajdhani', sans-serif;
}

#gameCanvas {
  display: block;
  width: 100vw;
  height: 100vh;
}

/* Modal Styles */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  backdrop-filter: blur(10px);
}

.modal.hidden {
  display: none;
}

.modal-content {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  border: 2px solid #0f3460;
  border-radius: 20px;
  padding: 40px;
  max-width: 600px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: 0 0 60px rgba(0, 200, 255, 0.2);
}

.modal-content h2 {
  font-family: 'Orbitron', sans-serif;
  font-size: 2rem;
  color: #00d4ff;
  text-align: center;
  margin-bottom: 30px;
  text-shadow: 0 0 20px rgba(0, 212, 255, 0.5);
}

.setting-group {
  margin-bottom: 25px;
}

.setting-group label {
  display: block;
  font-size: 1.1rem;
  color: #a0a0c0;
  margin-bottom: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.button-group {
  display: flex;
  gap: 10px;
}

.button-group button {
  flex: 1;
  padding: 12px 20px;
  border: 2px solid #0f3460;
  background: transparent;
  color: #a0a0c0;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.button-group button:hover {
  border-color: #00d4ff;
  color: #00d4ff;
}

.button-group button.active {
  background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  border-color: #00d4ff;
  color: #0a0a1a;
}

select {
  width: 100%;
  padding: 12px 15px;
  border: 2px solid #0f3460;
  background: #0a0a1a;
  color: #e0e0e0;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  border-radius: 10px;
  cursor: pointer;
}

select:focus {
  outline: none;
  border-color: #00d4ff;
}

input[type="range"] {
  width: calc(100% - 60px);
  height: 8px;
  background: #0f3460;
  border-radius: 4px;
  appearance: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

input[type="range"] + span {
  display: inline-block;
  width: 50px;
  text-align: right;
  color: #00d4ff;
  font-weight: 700;
  font-size: 1.2rem;
}

.category-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  max-height: 150px;
  overflow-y: auto;
  padding: 10px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 10px;
  margin-bottom: 10px;
}

.category-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 15px;
  background: linear-gradient(135deg, #1a1a2e 0%, #0f3460 100%);
  border: 1px solid #0f3460;
  border-radius: 20px;
  color: #e0e0e0;
  font-size: 0.9rem;
}

.category-tag .delete {
  cursor: pointer;
  color: #ff4757;
  font-weight: bold;
  transition: transform 0.2s;
}

.category-tag .delete:hover {
  transform: scale(1.2);
}

.add-category {
  display: flex;
  gap: 10px;
}

.add-category input {
  flex: 1;
  padding: 12px 15px;
  border: 2px solid #0f3460;
  background: #0a0a1a;
  color: #e0e0e0;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1rem;
  border-radius: 10px;
}

.add-category input:focus {
  outline: none;
  border-color: #00d4ff;
}

.add-category button {
  width: 50px;
  border: 2px solid #00d4ff;
  background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  color: #0a0a1a;
  font-size: 1.5rem;
  font-weight: bold;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 0.2s;
}

.add-category button:hover {
  transform: scale(1.05);
}

.modal-actions {
  display: flex;
  gap: 15px;
  margin-top: 30px;
}

.btn-primary, .btn-secondary {
  flex: 1;
  padding: 15px 30px;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
  border: none;
  color: #0a0a1a;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 212, 255, 0.4);
}

.btn-secondary {
  background: transparent;
  border: 2px solid #0f3460;
  color: #a0a0c0;
}

.btn-secondary:hover {
  border-color: #a0a0c0;
  color: #e0e0e0;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: #0a0a1a;
}

::-webkit-scrollbar-thumb {
  background: #0f3460;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #00d4ff;
}

/* Toggle Switch */
.toggle-group {
  display: flex;
  align-items: center;
  gap: 15px;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 32px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #0f3460;
  transition: 0.3s;
  border-radius: 32px;
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 24px;
  width: 24px;
  left: 4px;
  bottom: 4px;
  background-color: #a0a0c0;
  transition: 0.3s;
  border-radius: 50%;
}

.toggle-switch input:checked + .toggle-slider {
  background: linear-gradient(135deg, #00d4ff 0%, #0099cc 100%);
}

.toggle-switch input:checked + .toggle-slider:before {
  transform: translateX(28px);
  background-color: #0a0a1a;
}

.toggle-label {
  color: #e0e0e0;
  font-size: 1rem;
}