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

html,
body {
  height: 100%;
  font-family: "Courier New", monospace;
  background: #ffffff;
  color: #000000;
  font-weight: bold;
  overflow: hidden;
  user-select: none;
}

:root {
  --black: #000000;
  --white: #ffffff;
  --gray: #666666;
  --border-width: 4px;
  --shadow-offset: 6px;
}
/* Universal Home Button Styling */
.home-button {
  position: fixed;
  top: 20px;
  left: 20px;
  background: #ffffff;
  color: #000000;
  text-decoration: none;
  padding: 12px 18px;
  border: 4px solid #000000;
  box-shadow: 6px 6px 0 #808080;
  font-family: "Arial Black", Arial, sans-serif;
  font-size: 0.9rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  z-index: 1000;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
  user-select: none;
}

.home-button:hover {
  background: #000000;
  color: #ffffff;
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 #808080;
}

.home-button:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 #808080;
}

/* Full viewport layout */
.page {
  width: 100vw;
  height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--white);
  position: relative;
  overflow: hidden;
}

/* Brutalist card styling */
.card {
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  position: relative;
}

.card h2 {
  margin: 0 0 16px 0;
  font-size: 18px;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--black);
  font-weight: bold;
}

/* Desktop: 70% width, Mobile: full viewport */
.canvas-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100vw;
  height: 100vh;
  background: var(--white);
  overflow: hidden;
}

/* Responsive canvas sizing */
canvas {
  display: block;
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  outline: none;
  cursor: pointer;
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: -webkit-optimize-contrast;
}

canvas:focus {
  outline: 4px solid var(--black);
  outline-offset: 4px;
}

/* Game stats - positioned absolutely */
.canvas-stats {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: auto;
  min-width: 320px;
  padding: 16px 20px;
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  font-family: "Courier New", monospace;
}

.canvas-stats .stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 4px;
}

.canvas-stats .stat span {
  font-size: 12px;
  text-transform: uppercase;
  color: var(--gray);
  letter-spacing: 1px;
}

.canvas-stats .stat strong {
  font-size: 20px;
  color: var(--black);
  font-weight: bold;
}

.canvas-stats .grid-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  text-transform: uppercase;
  color: var(--gray);
  cursor: pointer;
  margin-top: 8px;
}

/* Welcome overlay - improved UX */
.welcome-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 60;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(2px);
}

.welcome-overlay .welcome-text {
  font-size: 24px;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  padding: 20px 30px;
  margin-bottom: 20px;
  text-align: center;
}

.welcome-hint {
  font-size: 16px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  background: var(--white);
  border: 2px solid var(--gray);
  padding: 12px 20px;
  text-align: center;
}

.welcome-bird {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--black);
  border-radius: 50%;
  animation: birdFloat 2s ease-in-out infinite;
}

@keyframes birdFloat {
  0%,
  100% {
    transform: translate(-50%, -50%) translateY(0px);
  }
  50% {
    transform: translate(-50%, -50%) translateY(-4px);
  }
}

.fade-out {
  animation: welcomeFade 420ms ease forwards;
}

@keyframes welcomeFade {
  to {
    opacity: 0;
    transform: translateY(-20px);
    visibility: hidden;
  }
}

/* Hamburger menu - brutalist style */
.hamburger {
  position: absolute;
  right: 20px;
  top: 20px;
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  cursor: pointer;
  z-index: 55;
  transition: none;
}

.hamburger:hover {
  background: var(--black);
}

.hamburger:hover .hamburger-bar {
  background: var(--white);
  box-shadow: 0 6px 0 0 var(--white), 0 -6px 0 0 var(--white);
}

.hamburger:active {
  transform: translate(2px, 2px);
  box-shadow: 4px 4px 0 0 var(--black);
}

.hamburger:focus {
  outline: 4px solid var(--black);
  outline-offset: 4px;
}

.hamburger-bar {
  display: block;
  width: 24px;
  height: 4px;
  background: var(--black);
  box-shadow: 0 8px 0 0 var(--black), 0 -8px 0 0 var(--black);
  transition: none;
}

/* Dropdown menu - improved UX */
.hamburger-menu {
  position: absolute;
  right: 20px;
  top: 90px;
  width: 280px;
  padding: 20px;
  background: var(--white);
  border: var(--border-width) solid var(--black);
  box-shadow: var(--shadow-offset) var(--shadow-offset) 0 0 var(--black);
  z-index: 50;
  display: none;
}

.hamburger-menu h2 {
  border-bottom: 3px solid var(--black);
  padding-bottom: 8px;
  margin-bottom: 16px;
}

/* Game controls - brutalist buttons */
.control {
  width: 100%;
  padding: 16px 20px;
  margin-bottom: 12px;
  border: 3px solid var(--black);
  background: var(--white);
  font-family: "Courier New", monospace;
  font-weight: bold;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 1px;
  cursor: pointer;
  transition: none;
}

.control:hover {
  background: var(--black);
  color: var(--white);
}

.control:active {
  transform: translate(2px, 2px);
}

.control:focus {
  outline: 3px solid var(--black);
  outline-offset: 3px;
}

.control-group {
  margin-bottom: 16px;
}

.control-group label {
  display: block;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
  color: var(--black);
}

.control-group select {
  width: 100%;
  padding: 12px;
  border: 3px solid var(--black);
  background: var(--white);
  font-family: "Courier New", monospace;
  font-weight: bold;
  font-size: 14px;
  text-transform: uppercase;
}

.control-group input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-right: 8px;
  accent-color: var(--black);
}

.small {
  font-size: 11px;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 1px;
  line-height: 1.4;
  border: 2px solid var(--gray);
  padding: 12px;
  background: #f5f5f5;
}

/* HUD - debug info */
.hud {
  position: absolute;
  left: 20px;
  top: 20px;
  padding: 16px;
  background: var(--white);
  border: 3px solid var(--black);
  box-shadow: 4px 4px 0 0 var(--black);
  font-family: "Courier New", monospace;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  z-index: 45;
  display: none;
}

.hud div {
  margin-bottom: 4px;
}

/* Responsive design */
@media (min-width: 769px) {
  /* Desktop: 70% width */
  .canvas-wrap {
    padding: 0 15vw; /* Centers and creates 70% width */
  }

  canvas {
    width: 70vw;
    height: 80vh;
    max-width: 500px;
    max-height: 700px;
  }

  .canvas-stats {
    min-width: 400px;
    bottom: 40px;
  }

  .hamburger {
    right: 40px;
    top: 40px;
  }

  .hamburger-menu {
    right: 40px;
    top: 120px;
    width: 320px;
  }

  .hud {
    left: 40px;
    top: 40px;
  }
}

@media (max-width: 768px) {
  /* Mobile: full viewport */
  canvas {
    width: 100vw;
    height: 100vh;
    border: none; /* Remove border on mobile for full screen */
    box-shadow: none;
  }

  .canvas-stats {
    bottom: 16px;
    min-width: 280px;
    padding: 12px 16px;
    gap: 16px;
  }

  .canvas-stats .stat span {
    font-size: 10px;
  }

  .canvas-stats .stat strong {
    font-size: 16px;
  }

  .hamburger {
    width: 50px;
    height: 50px;
    right: 16px;
    top: 16px;
  }

  .hamburger-menu {
    width: 240px;
    right: 16px;
    top: 80px;
    padding: 16px;
  }

  .welcome-overlay .welcome-text {
    font-size: 20px;
    padding: 16px 24px;
  }

  .welcome-hint {
    font-size: 14px;
    padding: 10px 16px;
  }

  .hud {
    left: 16px;
    top: 16px;
    padding: 12px;
  }

  .control {
    padding: 14px 16px;
    font-size: 13px;
  }
}

@media (max-width: 480px) {
  .canvas-stats {
    flex-direction: column;
    gap: 8px;
    bottom: 12px;
    min-width: 200px;
    padding: 10px 12px;
  }

  .canvas-stats .stat {
    flex-direction: row;
    gap: 8px;
  }

  .hamburger {
    width: 44px;
    height: 44px;
    right: 12px;
    top: 12px;
  }

  .hamburger-menu {
    width: 220px;
    right: 12px;
    top: 70px;
    padding: 12px;
  }

  .welcome-overlay .welcome-text {
    font-size: 18px;
    padding: 12px 20px;
  }

  .welcome-hint {
    font-size: 12px;
    padding: 8px 12px;
  }

  .control {
    padding: 12px 14px;
    font-size: 12px;
  }

  .hamburger-bar {
    width: 20px;
    height: 3px;
    box-shadow: 0 6px 0 0 var(--black), 0 -6px 0 0 var(--black);
  }
}

@media (orientation: landscape) and (max-height: 600px) {
  .canvas-stats {
    bottom: 8px;
    padding: 8px 12px;
  }

  .hamburger {
    top: 8px;
    right: 8px;
  }

  .hamburger-menu {
    top: 60px;
    right: 8px;
  }

  .hud {
    top: 8px;
    left: 8px;
    padding: 8px;
  }
}

/* Touch improvements */
@media (hover: none) {
  .hamburger:hover {
    background: var(--white);
  }

  .hamburger:hover .hamburger-bar {
    background: var(--black);
    box-shadow: 0 8px 0 0 var(--black), 0 -8px 0 0 var(--black);
  }

  .control:hover {
    background: var(--white);
    color: var(--black);
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .welcome-bird {
    animation: none;
  }

  .fade-out {
    animation: none;
    opacity: 0;
    visibility: hidden;
  }
}

/* High contrast mode */
@media (prefers-contrast: high) {
  :root {
    --border-width: 5px;
    --shadow-offset: 8px;
  }
}

/* Focus improvements */
.canvas-stats label:focus-within {
  outline: 3px solid var(--black);
  outline-offset: 2px;
}

/* Better checkbox styling */
input[type="checkbox"] {
  appearance: none;
  width: 20px;
  height: 20px;
  border: 3px solid var(--black);
  background: var(--white);
  cursor: pointer;
  position: relative;
}

input[type="checkbox"]:checked {
  background: var(--black);
}

input[type="checkbox"]:checked::after {
  content: "✓";
  position: absolute;
  top: -2px;
  left: 2px;
  color: var(--white);
  font-weight: bold;
  font-size: 14px;
}

input[type="checkbox"]:focus {
  outline: 3px solid var(--black);
  outline-offset: 2px;
}