/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body.all {
  font-family: 'Courier New', monospace;
  background: black;
  min-height: 100vh;
  color: white;
  overflow-x: hidden;
  position: relative;
}

/* Animated background effect */
body.all::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(120, 219, 255, 0.1) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 15s ease-in-out infinite;
}

.content-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
  position: relative;
  z-index: 1;
}

/* Login Area Styling */
#login-area {
  margin-bottom: 20px;
  padding: 20px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* User Info Styling */
#user-info {
  margin-bottom: 20px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 15px;
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  gap: 10px;
}

#user-info img {
  border: 2px solid #fff;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

#user-info p {
  margin: 0;
  font-weight: bold;
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.5);
}

/* Game Container */
#game-container {
  background: rgba(0, 0, 0, 0.6);
  border-radius: 20px;
  padding: 25px;
  backdrop-filter: blur(15px);
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
  position: relative;
  max-width: 400px;
  width: 100%;
}

/* Game Info Bar */
.info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding: 15px;
  background: linear-gradient(45deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  font-weight: bold;
  font-size: 14px;
  text-shadow: 0 0 5px rgba(255, 255, 255, 0.3);
}

.info div {
  display: flex;
  align-items: center;
  gap: 5px;
}

#score {
  color: #ffd700;
  font-size: 16px;
}

.hearts {
  font-size: 18px;
  filter: drop-shadow(0 0 5px rgba(255, 0, 0, 0.5));
}

#timer {
  color: #00ff88;
}

/* Game Canvas */
#game {
  width: 100%;
  max-width: 320px;
  height: auto;
  aspect-ratio: 1;
  border: 3px solid #fff;
  border-radius: 10px;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
  margin: 0 auto 20px auto;
  display: block;
  background: #000;
}

/* Controls */
.controls {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 20px;
  max-width: 200px;
  margin-left: auto;
  margin-right: auto;
}

.btn {
  background: linear-gradient(145deg, #4a5568, #2d3748);
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 20px;
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  transition: all 0.15s ease;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 4px 8px rgba(0, 0, 0, 0.3),
    inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

.btn:hover {
  background: linear-gradient(145deg, #5a6578, #3d4758);
  transform: translateY(-2px);
  box-shadow: 
    0 6px 12px rgba(0, 0, 0, 0.4),
    inset 0 1px 2px rgba(255, 255, 255, 0.3);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 
    0 2px 4px rgba(0, 0, 0, 0.3),
    inset 0 2px 4px rgba(0, 0, 0, 0.2);
}

.empty {
  visibility: hidden;
  width: 50px;
  height: 50px;
  /* Ensures grid alignment matches .btn size */
}

/* Button Layout */
.btn-lay {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.pause-btn, .start-button, .Button {
  background: linear-gradient(145deg, #667eea, #764ba2);
  border: none;
  border-radius: 25px;
  color: white;
  padding: 12px 20px;
  font-size: 14px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 4px 15px rgba(102, 126, 234, 0.4),
    inset 0 1px 2px rgba(255, 255, 255, 0.2);
  text-decoration: none;
  display: inline-block;
  font-family: 'Courier New', monospace;
}

.pause-btn:hover, .start-button:hover, .Button:hover {
  background: linear-gradient(145deg, #7c8ffa, #8659ba);
  transform: translateY(-2px);
  box-shadow: 
    0 6px 20px rgba(102, 126, 234, 0.6),
    inset 0 1px 2px rgba(255, 255, 255, 0.3);
}

.pause-btn:active, .start-button:active, .Button:active {
  transform: translateY(0);
}

/* End Screen */
#end-screen {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: linear-gradient(145deg, rgba(0, 0, 0, 0.9), rgba(20, 20, 40, 0.95));
  padding: 40px;
  border-radius: 20px;
  text-align: center;
  display: none;
  z-index: 1000;
  border: 2px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
  min-width: 300px;
}

#end-screen h2 {
  color: #ff6b6b;
  font-size: 32px;
  margin-bottom: 20px;
  text-shadow: 0 0 15px #ff6b6b;
  animation: glow 2s ease-in-out infinite alternate;
}

@keyframes glow {
  from { text-shadow: 0 0 15px #ff6b6b; }
  to { text-shadow: 0 0 25px #ff6b6b, 0 0 35px #ff6b6b; }
}

#end-screen p {
  font-size: 18px;
  margin-bottom: 15px;
  color: #e0e0e0;
}

#final-score {
  color: #ffd700;
  font-weight: bold;
  text-shadow: 0 0 10px #ffd700;
}

#best-score {
  color: #00ff88;
  font-weight: bold;
  text-shadow: 0 0 10px #00ff88;
}

#end-screen button {
  background: linear-gradient(145deg, #28a745, #20c997);
  border: none;
  border-radius: 25px;
  color: white;
  padding: 15px 30px;
  font-size: 16px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 20px;
  border: 2px solid rgba(255, 255, 255, 0.2);
  box-shadow: 
    0 4px 15px rgba(40, 167, 69, 0.4),
    inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

#end-screen button:hover {
  background: linear-gradient(145deg, #34ce57, #26d0e2);
  transform: translateY(-2px);
  box-shadow: 
    0 6px 20px rgba(40, 167, 69, 0.6),
    inset 0 1px 2px rgba(255, 255, 255, 0.3);
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 20px;
  text-align: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  width: 100%;
}

.footer p {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
}

.footer a {
  color: #64b5f6;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer a:hover {
  color: #90caf9;
  text-shadow: 0 0 5px #64b5f6;
}

/* Responsive Design */
@media (max-width: 768px) {
  .content-wrapper {
    padding: 10px;
  }
  
  #game-container {
    padding: 20px;
    margin: 10px;
  }
  
  .info {
    flex-direction: column;
    gap: 10px;
    font-size: 12px;
  }
  
  .btn-lay {
    justify-content: center;
  }
  
  .pause-btn, .start-button, .Button {
    padding: 10px 15px;
    font-size: 12px;
  }
  
  #end-screen {
    padding: 30px 20px;
    margin: 20px;
    min-width: unset;
    width: calc(100% - 40px);
  }
  
  #end-screen h2 {
    font-size: 24px;
  }
}

@media (max-width: 480px) {
  .controls {
    gap: 5px;
    max-width: 180px;
  }
  
  .btn {
    width: 45px;
    height: 45px;
    font-size: 18px;
  }
  
  #user-info {
    flex-direction: column;
    text-align: center;
  }
  
  .btn-lay {
    flex-direction: column;
    gap: 8px;
  }
  
  .pause-btn, .start-button, .Button {
    width: 100%;
    max-width: 200px;
  }
  
  .empty {
    width: 38px;
    height: 38px;
  }
}

/* Additional Game States */
.game-paused {
  filter: brightness(0.5) blur(2px);
  pointer-events: none;
}

/* Loading animation for Google Sign-in */
#google-signin {
  transition: all 0.3s ease;
}

#google-signin:hover {
  transform: scale(1.05);
}

/* Pixel-perfect scaling for retro feel */
canvas {
  image-rendering: -moz-crisp-edges;
  image-rendering: -webkit-crisp-edges;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}

/* Accessibility improvements */
.btn:focus, button:focus {
  outline: 2px solid #64b5f6;
  outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
  .btn, .pause-btn, .start-button, .Button {
    border: 3px solid white;
  }
  
  #game {
    border: 4px solid white;
  }
}