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

:root {
  --bg-dark: #0a0a12;
  --bg-panel: #12121f;
  --bg-card: #1a1a2e;
  --accent-purple: #8b5cf6;
  --accent-gold: #fbbf24;
  --accent-orange: #ff6b35;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --glow-purple: 0 0 20px rgba(139, 92, 246, 0.4);
  --glow-gold: 0 0 20px rgba(251, 191, 36, 0.4);
}

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.game-header {
  background: linear-gradient(135deg, #1a1a2e 0%, #0a0a12 100%);
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid var(--accent-purple);
  box-shadow: var(--glow-purple);
  flex-wrap: wrap;
  gap: 1rem;
}

.game-title {
  font-family: 'Cinzel', serif;
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-orange) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: var(--glow-gold);
}

.header-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.stat {
  background: var(--bg-card);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  font-weight: 700;
  border: 1px solid rgba(139, 92, 246, 0.3);
}

.stat.gold { color: var(--accent-gold); }
.stat.lives { color: #ef4444; }
.stat.wave { color: var(--accent-purple); }
.stat.score { color: #22c55e; }

.game-main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

.workshop-panel {
  background: var(--bg-panel);
  border-right: 2px solid var(--accent-purple);
  transition: width 0.3s ease;
  position: relative;
  display: flex;
  flex-direction: column;
}

.workshop-panel.open {
  width: 320px;
  min-width: 320px;
}

.workshop-panel.closed {
  width: 40px;
  min-width: 40px;
}

.workshop-toggle {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--accent-purple);
  border: none;
  color: white;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10;
  font-size: 1rem;
  box-shadow: var(--glow-purple);
  transition: transform 0.2s;
}

.workshop-toggle:hover {
  transform: translateY(-50%) scale(1.1);
}

.workshop-content {
  padding: 1rem;
  overflow-y: auto;
  flex: 1;
}

.workshop-title {
  font-family: 'Cinzel', serif;
  font-size: 1.2rem;
  color: var(--accent-gold);
  margin-bottom: 1rem;
  text-align: center;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.name-input-row {
  display: flex;
  gap: 0.5rem;
}

.text-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 6px;
  padding: 0.6rem;
  color: var(--text-primary);
  font-family: inherit;
}

.text-input:focus {
  outline: none;
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.random-btn {
  background: var(--bg-card);
  border: 1px solid var(--accent-gold);
  border-radius: 6px;
  padding: 0 0.8rem;
  cursor: pointer;
  font-size: 1.2rem;
  transition: all 0.2s;
}

.random-btn:hover {
  background: var(--accent-gold);
  transform: rotate(180deg);
}

.slider {
  width: 100%;
  height: 8px;
  -webkit-appearance: none;
  background: var(--bg-card);
  border-radius: 4px;
  outline: none;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  background: var(--accent-purple);
  border-radius: 50%;
  cursor: pointer;
  box-shadow: var(--glow-purple);
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.7rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

.color-picker {
  width: 100%;
  height: 40px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

.passive-grid, .ability-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.passive-card, .ability-card {
  background: var(--bg-card);
  border: 2px solid transparent;
  border-radius: 8px;
  padding: 0.5rem;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s;
}

.passive-card:hover, .ability-card:hover {
  background: rgba(139, 92, 246, 0.2);
}

.passive-card.selected, .ability-card.selected {
  background: rgba(139, 92, 246, 0.3);
  border-color: var(--accent-purple);
  box-shadow: var(--glow-purple);
}

.passive-icon, .ability-icon {
  display: block;
  font-size: 1.5rem;
}

.passive-name, .ability-name {
  display: block;
  font-size: 0.65rem;
  margin-top: 0.25rem;
  color: var(--text-secondary);
}

.unit-preview {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.preview-unit {
  width: 50px;
  height: 50px;
  border: 2px solid;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-triangle {
  width: 0;
  height: 0;
  border-left: 15px solid transparent;
  border-right: 15px solid transparent;
  border-bottom: 25px solid;
}

.preview-stats {
  font-size: 0.9rem;
}

.save-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-purple) 0%, #7c3aed 100%);
  border: none;
  border-radius: 8px;
  padding: 1rem;
  color: white;
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--glow-purple);
  transition: all 0.2s;
  margin-bottom: 0.5rem;
}

.save-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
}

.arsenal-btn {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--accent-gold);
  border-radius: 8px;
  padding: 0.8rem;
  color: var(--accent-gold);
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
}

.arsenal-btn:hover {
  background: rgba(251, 191, 36, 0.2);
}

.battlefield-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  background: linear-gradient(180deg, #0a0a12 0%, #12121f 100%);
}

.battlefield-canvas {
  flex: 1;
  width: 100%;
  cursor: crosshair;
}

.placement-hint {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(139, 92, 246, 0.9);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

.game-over-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.game-over-content {
  background: var(--bg-panel);
  border: 2px solid var(--accent-purple);
  border-radius: 16px;
  padding: 2rem;
  text-align: center;
  box-shadow: var(--glow-purple);
}

.game-over-content h2 {
  font-family: 'Cinzel', serif;
  font-size: 2rem;
  color: #ef4444;
  margin-bottom: 1rem;
}

.game-over-content p {
  margin: 0.5rem 0;
  font-size: 1.1rem;
}

.new-record {
  color: var(--accent-gold) !important;
  font-weight: 700;
}

.restart-btn {
  margin-top: 1rem;
  background: var(--accent-purple);
  border: none;
  border-radius: 8px;
  padding: 0.8rem 2rem;
  color: white;
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.restart-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--glow-purple);
}

.unit-hotbar {
  display: flex;
  gap: 0.5rem;
  padding: 0.75rem;
  background: var(--bg-panel);
  border-top: 2px solid var(--accent-purple);
  overflow-x: auto;
  min-height: 80px;
}

.hotbar-empty {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  font-size: 0.9rem;
}

.hotbar-unit {
  background: var(--bg-card);
  border: 2px solid;
  border-radius: 8px;
  padding: 0.5rem;
  min-width: 80px;
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.hotbar-unit:hover:not(.disabled) {
  transform: translateY(-4px);
}

.hotbar-unit.selected {
  box-shadow: 0 0 20px currentColor;
}

.hotbar-unit.disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.hotbar-icon {
  font-size: 1.5rem;
}

.hotbar-name {
  font-size: 0.7rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hotbar-cost {
  font-size: 0.75rem;
  color: var(--accent-gold);
}

.wave-controls {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  background: var(--bg-dark);
  align-items: center;
  flex-wrap: wrap;
}

.wave-btn {
  background: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.2rem;
  color: white;
  font-family: 'Cinzel', serif;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}

.wave-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.wave-btn:hover:not(:disabled) {
  transform: scale(1.05);
}

.control-btn {
  background: var(--bg-card);
  border: 1px solid var(--accent-purple);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1rem;
}

.speed-controls {
  display: flex;
  gap: 0.25rem;
}

.speed-btn {
  background: var(--bg-card);
  border: 1px solid var(--text-secondary);
  border-radius: 4px;
  padding: 0.4rem 0.6rem;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.8rem;
  transition: all 0.2s;
}

.speed-btn.active {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
  color: white;
}

.high-score {
  margin-left: auto;
  color: var(--accent-gold);
  font-size: 0.9rem;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}

.arsenal-modal {
  background: var(--bg-panel);
  border: 2px solid var(--accent-purple);
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  width: 100%;
}

.arsenal-modal h2 {
  font-family: 'Cinzel', serif;
  color: var(--accent-gold);
  margin-bottom: 1rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
}

.arsenal-empty {
  color: var(--text-secondary);
  text-align: center;
  padding: 2rem;
}

.arsenal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
}

.arsenal-card {
  background: var(--bg-card);
  border: 2px solid;
  border-radius: 12px;
  padding: 1rem;
}

.arsenal-card-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.arsenal-icon {
  font-size: 1.5rem;
}

.arsenal-name {
  font-weight: 700;
  font-size: 0.9rem;
}

.arsenal-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.arsenal-passives {
  display: flex;
  gap: 0.25rem;
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.arsenal-actions {
  display: flex;
  gap: 0.5rem;
}

.arsenal-actions button {
  flex: 1;
  background: var(--bg-dark);
  border: 1px solid var(--text-secondary);
  border-radius: 4px;
  padding: 0.4rem;
  cursor: pointer;
  transition: all 0.2s;
}

.arsenal-actions button:hover {
  background: var(--accent-purple);
  border-color: var(--accent-purple);
}

.game-footer {
  background: var(--bg-panel);
  padding: 0.75rem;
  text-align: center;
  border-top: 1px solid rgba(139, 92, 246, 0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
}

.game-footer a {
  color: var(--accent-purple);
  text-decoration: none;
}

.game-footer a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .game-header {
    padding: 0.75rem 1rem;
  }
  
  .game-title {
    font-size: 1.3rem;
  }
  
  .header-stats {
    gap: 0.5rem;
  }
  
  .stat {
    padding: 0.3rem 0.6rem;
    font-size: 0.85rem;
  }
  
  .game-main {
    flex-direction: column;
  }
  
  .workshop-panel.open {
    width: 100%;
    max-height: 50vh;
    border-right: none;
    border-bottom: 2px solid var(--accent-purple);
  }
  
  .workshop-toggle {
    right: 50%;
    transform: translateX(50%);
    top: auto;
    bottom: -20px;
  }
  
  .workshop-panel.closed {
    width: 100%;
    height: 40px;
  }
  
  .passive-grid, .ability-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .unit-hotbar {
    flex-wrap: nowrap;
  }
  
  .arsenal-grid {
    grid-template-columns: 1fr;
  }
}