@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

body {
  margin: 0;
  padding: 0;
  font-family: 'Press Start 2P', cursive, monospace;
  background-color: #222222;
  color: #ecf0f1;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  /* Pixelated background pattern */
  background-image: linear-gradient(45deg, #111 25%, transparent 25%, transparent 75%, #111 75%, #111), 
                    linear-gradient(45deg, #111 25%, transparent 25%, transparent 75%, #111 75%, #111);
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
}

#app {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1000px;
  padding: 30px 20px;
  box-sizing: border-box;
}

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

header h1 {
  margin: 0;
  font-size: 1.8rem;
  color: #f1c40f;
  text-shadow: 4px 4px 0px #000;
  letter-spacing: 2px;
}

header p {
  margin: 10px 0 0 0;
  color: #bdc3c7;
  font-size: 0.7rem;
  line-height: 1.5;
  text-shadow: 2px 2px 0px #000;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.menu-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #2c3e50;
  padding: 40px;
  border: 4px solid #fff;
  box-shadow: 8px 8px 0px #000;
  margin-top: 40px;
}

.menu-container h2 {
  margin-top: 0;
  margin-bottom: 30px;
  color: #f1c40f;
  text-shadow: 2px 2px 0 #000;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
}

.mode-btn {
  padding: 15px 20px;
  font-size: 0.8rem;
  background: #3498db;
  color: white;
  width: 100%;
}

.mode-btn:hover {
  background: #2980b9;
}

#game-container {
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: flex-start;
  width: 100%;
  background: #34495e;
  padding: 20px;
  border: 4px solid #fff;
  box-shadow: 8px 8px 0px #000;
  gap: 20px;
}

#right-panel {
  display: flex;
  flex-direction: column;
  width: 300px;
  background: #2c3e50;
  padding: 20px;
  border: 4px solid #000;
  box-shadow: inset 4px 4px 0 rgba(255,255,255,0.05), 4px 4px 0px #000;
}

.player-section {
  border: 2px dashed #555;
  padding: 15px;
  border-radius: 8px;
  transition: all 0.2s;
}

.player-section h2 {
  font-size: 1.2rem;
  margin: 0 0 15px 0;
  text-align: center;
  text-shadow: 2px 2px 0 #000;
}

.white-section h2 { color: #fff; }
.black-section h2 { color: #aaa; }

.active-panel {
  border: 2px solid #f1c40f;
  background: rgba(241, 196, 15, 0.1);
}

.status-box {
  padding: 15px;
  background: #000;
  border: 2px solid #f1c40f;
  font-size: 1rem;
  text-align: center;
  min-height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  line-height: 1.4;
  color: #2ecc71;
  box-sizing: border-box;
  text-shadow: 2px 2px 0 #000;
}

#board-area {
  display: flex;
  flex-direction: column;
  align-items: center;
}

#turn-banner {
  font-size: 1.2rem;
  margin-bottom: 15px;
  padding: 10px 15px;
  background: #e67e22;
  border: 4px solid #000;
  color: white;
  box-shadow: 4px 4px 0px #000;
  text-align: center;
}

#canvas-wrapper {
  position: relative;
  border: 6px solid #000;
  box-shadow: 8px 8px 0px #000;
  background: #000;
}

canvas {
  display: block;
  image-rendering: pixelated;
  cursor: pointer;
}

#action-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.8rem;
  color: #fff;
  text-shadow: 4px 4px 0 #000;
  pointer-events: none;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  text-align: center;
  width: 90%;
  padding: 20px;
  background: rgba(0, 0, 0, 0.85);
  border: 4px solid #f1c40f;
  line-height: 1.6;
  box-shadow: 8px 8px 0 #000;
  z-index: 50;
}

#controls {
  margin-top: 25px;
  display: flex;
  gap: 15px;
}

button {
  padding: 12px 15px;
  font-family: 'Press Start 2P', monospace;
  font-size: 0.6rem;
  border: 4px solid #000;
  background: #bdc3c7;
  color: #000;
  cursor: pointer;
  box-shadow: 4px 4px 0px #000;
  text-transform: uppercase;
}

button:hover {
  background: #ecf0f1;
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0px #000;
}

button:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px #000;
}

#btn-restart {
  background: #e74c3c;
  color: #fff;
}
#btn-restart:hover {
  background: #ff7675;
}

.powerups {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-top: 10px;
  width: 100%;
  min-height: 300px;
}

.powerup-btn {
  position: relative;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  background: #2c3e50;
  border: 4px solid #1a252f;
  box-shadow: inset 2px 2px 0px rgba(255,255,255,0.1), 4px 4px 0px #000;
  cursor: pointer;
  padding: 10px;
  width: 100%;
  box-sizing: border-box;
  gap: 12px;
  text-align: left;
  border-radius: 6px;
  color: #fff;
  transition: transform 0.1s, box-shadow 0.1s, background 0.2s;
  overflow: hidden;
}

.powerup-btn::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 6px; height: 100%;
  background: #e74c3c;
}

.powerup-btn:nth-child(even)::before { background: #3498db; }
.powerup-btn:nth-child(3n)::before { background: #9b59b6; }

.powerup-btn:hover {
  background: #34495e;
  transform: translate(-2px, -2px);
  box-shadow: inset 2px 2px 0px rgba(255,255,255,0.15), 6px 6px 0px #000;
}

.powerup-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 0px 0px 0px #000;
}

.powerup-btn.active {
  background: #d35400;
  border-color: #f39c12;
  box-shadow: inset 2px 2px 0px rgba(255,255,255,0.3), 4px 4px 0px #000;
}

.powerup-btn.active:hover {
  background: #e67e22;
}

.powerup-btn img {
  width: 32px;
  height: 32px;
  image-rendering: pixelated;
  flex-shrink: 0;
  margin-left: 4px;
}

.powerup-btn small {
  font-size: 0.6rem;
  color: #f1c40f;
  text-shadow: 1px 1px 0 #000;
  text-transform: uppercase;
}

@keyframes shake {
  0% { transform: translate(2px, 2px) rotate(0deg); }
  10% { transform: translate(-2px, -3px) rotate(-1deg); }
  20% { transform: translate(-4px, 0px) rotate(1deg); }
  30% { transform: translate(4px, 3px) rotate(0deg); }
  40% { transform: translate(2px, -2px) rotate(1deg); }
  50% { transform: translate(-2px, 3px) rotate(-1deg); }
  60% { transform: translate(-4px, 2px) rotate(0deg); }
  70% { transform: translate(4px, 2px) rotate(-1deg); }
  80% { transform: translate(-2px, -2px) rotate(1deg); }
  90% { transform: translate(2px, 3px) rotate(0deg); }
  100% { transform: translate(2px, -3px) rotate(-1deg); }
}

.shake {
  animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

@media (max-width: 900px) {
  #game-container {
    flex-direction: column;
    align-items: center;
    padding: 10px;
  }
  #right-panel {
    width: 100%;
    max-width: 520px;
    box-sizing: border-box;
  }
  #canvas-wrapper {
    width: 100%;
    max-width: 520px;
  }
  canvas {
    width: 100%;
    height: auto;
  }
}