/* Main Styles for Chess App */
:root {
  --primary-color: #34495e;
  --secondary-color: #2c3e50;
  --accent-color: #3498db;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --success-color: #2ecc71;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
  color: var(--dark-color);
  background-color: var(--light-color);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

header {
  text-align: center;
  margin-bottom: 30px;
}

h1 {
  color: var(--primary-color);
  margin-bottom: 20px;
}

nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

button {
  padding: 8px 16px;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background-color 0.3s;
}

button:hover {
  background-color: var(--accent-color);
}

button.active {
  background-color: var(--accent-color);
}

main {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.game-container, .puzzle-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 800px;
}

@media (min-width: 768px) {
  .game-container {
    flex-direction: row;
    align-items: flex-start;
    justify-content: center;
    gap: 30px;
  }
}

.chess-board {
  width: 100%;
  max-width: 450px;
  margin-bottom: 20px;
}

.game-controls {
  width: 100%;
  max-width: 300px;
}

.status-panel {
  background-color: white;
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

#status, .puzzle-status {
  font-weight: bold;
  margin-bottom: 10px;
  color: #2c3e50;
  background-color: #f8f9fa;
  padding: 10px;
  border-radius: 4px;
  border-left: 4px solid #3498db;
}

.control-panel {
  background-color: white;
  padding: 15px;
  border-radius: 4px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.difficulty {
  margin-bottom: 15px;
}

select {
  padding: 8px;
  width: 100%;
  border-radius: 4px;
  border: 1px solid #ddd;
}

.buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.puzzle-container {
  text-align: center;
}

.puzzle-info {
  background-color: white;
  padding: 15px;
  border-radius: 4px;
  margin-bottom: 20px;
  box-shadow: 0 2px 5px rgba(0,0,0,0.1);
  width: 100%;
}

.puzzle-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
}

footer {
  text-align: center;
  margin-top: 40px;
  color: var(--secondary-color);
  font-size: 0.9rem;
}

/* Captured pieces display */
#captured-pieces {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 10px;
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .chess-board {
    max-width: 100%;
  }
  
  .game-controls {
    max-width: 100%;
  }
}