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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, sans-serif;
  background: #0f0f1a;
  color: #e0e0e0;
  min-height: 100vh;
}

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

header {
  text-align: center;
  margin-bottom: 20px;
}

header h1 {
  font-size: 1.4rem;
  color: #888;
  font-weight: 500;
}

header h1 a {
  color: #3498db;
  text-decoration: none;
}

header h1 a:hover {
  text-decoration: underline;
}

.controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 16px;
  background: #1a1a2e;
  border-radius: 8px;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.control-group label {
  font-size: 0.9rem;
  color: #aaa;
}

.control-group select {
  padding: 8px 12px;
  font-size: 0.9rem;
  border: 1px solid #333;
  border-radius: 4px;
  background: #252540;
  color: #e0e0e0;
  cursor: pointer;
}

.control-group select:focus {
  outline: none;
  border-color: #3498db;
}

.btn-primary {
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: 4px;
  background: #3498db;
  color: #fff;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-primary:hover:not(:disabled) {
  background: #2980b9;
}

.btn-primary:disabled {
  background: #555;
  color: #888;
  cursor: not-allowed;
}

.hint {
  text-align: center;
  color: #666;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.players-container {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.player-panel {
  background: #1a1a2e;
  border: 2px solid #333;
  border-radius: 8px;
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 300px; /* Fixed width matching canvas */
  flex-shrink: 0; /* Prevent flex from shrinking panels */
}

.player-panel.active {
  border-color: #3498db;
  box-shadow: 0 0 12px rgba(52, 152, 219, 0.3);
}

.player-panel.desync {
  animation: desync-flash 0.5s ease-out;
}

@keyframes desync-flash {
  0% {
    border-color: #e74c3c;
    box-shadow: 0 0 20px rgba(231, 76, 60, 0.6);
  }
  100% {
    border-color: #333;
    box-shadow: none;
  }
}

.player-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 12px;
  background: #252540;
  border-bottom: 1px solid #333;
  min-height: 68px; /* Fixed height for player name + 2-line stats */
}

.player-info {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.player-name {
  font-weight: 600;
  font-size: 0.9rem;
}

.player-stats {
  font-size: 0.75rem;
  color: #888;
  line-height: 1.3;
  height: 2.6em; /* Fixed height for 2 lines (2 * 1.3em line-height) */
}

.player-buttons {
  display: flex;
  gap: 8px;
}

.player-buttons button {
  padding: 5px 10px;
  font-size: 0.75rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-desync {
  background: #f39c12;
  color: #000;
}

.btn-desync:hover {
  background: #e67e22;
}

.btn-disconnect {
  background: #e74c3c;
  color: #fff;
}

.btn-disconnect:hover {
  background: #c0392b;
}

.game-canvas {
  display: block;
  cursor: pointer;
}