:root {
  --bg-color: #0f172a;
  --surface-color: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --btn-secondary: rgba(255, 255, 255, 0.1);
  --btn-secondary-hover: rgba(255, 255, 255, 0.2);
  --font-family: 'Outfit', sans-serif;
  --canvas-bg: #000;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  overflow: hidden;
  /* Prevent scrolling, full app feel */
}

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Simulator Canvas View */
.sim-view {
  flex-grow: 1;
  position: relative;
  display: flex;
  background-color: var(--canvas-bg);
  background: radial-gradient(circle at center, #1e293b 0%, #020617 100%);
}

.multi-view {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 30px;
  overflow-y: auto;
  /* in case screens are small */
  padding: 80px 20px 20px 20px;
  /* space for absolute stats at top */
}

.sim-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--surface-color);
  padding: 20px;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.sim-container h3 {
  margin-bottom: 15px;
  font-weight: 500;
  font-size: 1.1rem;
  color: var(--accent-hover);
}

.sim-container canvas {
  /* Using image-rendering for clean pixel layout */
  background-color: var(--canvas-bg);
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
  border-radius: 4px;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  width: 250px;
  height: 250px;
}

.grid-stats {
  margin-top: 15px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.grid-stats span {
  color: var(--text-primary);
  font-weight: 600;
}

.overlay-stats {
  position: absolute;
  top: 20px;
  left: 20px;
  background: var(--surface-color);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 10px 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.overlay-stats p {
  margin: 4px 0;
  color: var(--text-secondary);
}

.overlay-stats span {
  color: var(--text-primary);
  font-weight: 600;
}

/* Sidebar Controls */
.control-panel {
  width: 320px;
  background: var(--surface-color);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-left: 1px solid var(--border-color);
  padding: 30px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  z-index: 10;
  box-shadow: -4px 0 20px rgba(0, 0, 0, 0.2);
}

.glass {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
}

.control-panel h2 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 2px;
  background: linear-gradient(to right, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.description {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-group label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  justify-content: space-between;
}

#tempSliderValue {
  color: var(--accent-hover);
}

/* Custom Select Styling */
.select-wrapper select {
  width: 100%;
  padding: 10px 12px;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  cursor: pointer;
  appearance: none;
}

.select-wrapper select:focus {
  border-color: var(--accent-color);
}

.select-wrapper select option {
  background-color: var(--bg-color);
}

/* Custom Range Slider */
.custom-slider {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  outline: none;
}

.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--accent-color);
  cursor: pointer;
  transition: transform 0.1s;
}

.custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  background: var(--accent-hover);
}

/* Buttons */
.btn-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.main-actions {
  margin-top: auto;
}

.btn {
  padding: 12px 16px;
  border-radius: 8px;
  border: none;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--accent-color);
  color: white;
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(59, 130, 246, 0.5);
}

.btn-secondary {
  background: var(--btn-secondary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: var(--btn-secondary-hover);
}

.info-footer {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  border-top: 1px solid var(--border-color);
  padding-top: 15px;
}