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

html {
  font-size: 16px;
  height: 100%;
}

body {
  font-family: "Courier New", monospace;
  background-color: white;
  color: black;
  line-height: 1.4;
  height: 100vh;
  font-weight: bold;
  overflow-x: hidden;
  touch-action: pan-y;
}

.game-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0.5rem;
  gap: 0.5rem;
}

/* 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;
}

.game-header {
  text-align: center;
  border: 3px solid black;
  padding: 1rem;
  background-color: white;
  flex-shrink: 0;
  margin-top: 0.5rem;
}

.game-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.game-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  gap: 0.5rem;
  margin-top: 1rem;
}

.stat-item {
  font-size: clamp(0.9rem, 2.5vw, 1.1rem);
  padding: 0.5rem 0.75rem;
  border: 2px solid black;
  background-color: white;
  text-align: center;
  white-space: nowrap;
}

.timer-container {
  width: 100%;
  height: 1.5rem;
  border: 2px solid black;
  background-color: white;
  position: relative;
  flex-shrink: 0;
  overflow: hidden;
}

.timer-bar {
  height: 100%;
  background-color: black;
  width: 100%;
  transition: width 0.1s linear;
  transform-origin: left;
}

.timer-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  font-size: 0.75rem;
  z-index: 2;
  mix-blend-mode: difference;
  font-weight: bold;
  white-space: nowrap;
  pointer-events: none;
}

.game-area {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.drop-zone {
  border: 3px dashed black;
  padding: 1rem;
  background-color: white;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: all 0.15s ease;
  position: relative;
  overflow-y: auto;
  scrollbar-width: thin;
  min-height: 200px;
}

.drop-zone::-webkit-scrollbar {
  width: 4px;
}

.drop-zone::-webkit-scrollbar-track {
  background: white;
}

.drop-zone::-webkit-scrollbar-thumb {
  background: black;
}

.drop-zone.drag-over {
  background-color: #e8f4fd;
  border-color: #0066cc;
  transform: scale(1.01);
  box-shadow: inset 0 0 10px rgba(0, 102, 204, 0.2);
}

.drop-zone-title {
  font-size: clamp(1rem, 3vw, 1.2rem);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  flex-shrink: 0;
  margin-bottom: 0.5rem;
}

.drop-zone-placeholder {
  color: #666;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  text-align: center;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0.7;
  font-style: italic;
}

.drop-zone.has-cards .drop-zone-placeholder {
  display: none;
}

.drop-zone-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  min-height: 50px;
}

.word-pool {
  border: 3px solid black;
  padding: 1rem;
  background-color: white;
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  scrollbar-width: thin;
}

.word-pool::-webkit-scrollbar {
  width: 4px;
}

.word-pool::-webkit-scrollbar-track {
  background: white;
}

.word-pool::-webkit-scrollbar-thumb {
  background: black;
}

.word-pool-title {
  font-size: clamp(1rem, 3vw, 1.2rem);
  text-transform: uppercase;
  letter-spacing: 1px;
  text-align: center;
  margin-bottom: 1rem;
  flex-shrink: 0;
}

.word-cards {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  align-content: flex-start;
}

.word-card {
  background-color: white;
  border: 2px solid black;
  padding: 0.75rem 1rem;
  font-size: clamp(0.9rem, 2.5vw, 1rem);
  cursor: grab;
  user-select: none;
  transition: all 0.1s ease-out;
  box-shadow: 2px 2px 0 black;
  min-width: 80px;
  max-width: 180px;
  text-align: center;
  word-wrap: break-word;
  touch-action: manipulation;
  transform-origin: center;
  position: relative;
  z-index: 1;
}

.word-card:hover {
  transform: scale(1.05) translateY(-2px);
  box-shadow: 3px 3px 0 black;
  z-index: 10;
}

.word-card:active {
  cursor: grabbing;
  transform: scale(1.02);
  transition: transform 0.05s ease;
}

.word-card.dragging {
  opacity: 0.6;
  transform: rotate(3deg) scale(1.05);
  z-index: 1000;
  box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.4);
  border-color: #0066cc;
}

.word-card.ghost {
  opacity: 0.3;
  transform: scale(0.9);
}

.game-controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 0.5rem;
  padding: 0.5rem 0;
  flex-shrink: 0;
}

.game-btn {
  background-color: white;
  border: 3px solid black;
  padding: 0.75rem 1rem;
  font-size: clamp(0.8rem, 2.5vw, 1rem);
  font-family: "Courier New", monospace;
  font-weight: bold;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.1s ease;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.game-btn:hover {
  background-color: #f0f0f0;
  transform: translateY(-1px);
}

.game-btn:active {
  transform: translateY(0);
  transition: transform 0.05s ease;
}

.game-btn:disabled {
  background-color: #ccc;
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
}

.game-btn.primary {
  background-color: black;
  color: white;
}

.game-btn.primary:hover:not(:disabled) {
  background-color: #333;
}

.feedback {
  text-align: center;
  font-size: clamp(1rem, 3vw, 1.2rem);
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid #666;
  padding: 0.75rem;
  border-radius: 0;
  flex-shrink: 0;
  transition: all 0.15s ease;
  background-color: #f5f5f5;
  color: #666;
}

.feedback.success {
  color: #006600;
  border-color: #006600;
  background-color: #f0fff0;
  animation: successPulse 0.3s ease;
}

.feedback.error {
  color: #cc0000;
  border-color: #cc0000;
  background-color: #fff0f0;
  animation: errorShake 0.3s ease;
}

.feedback.neutral {
  color: #333;
  border-color: #333;
  background-color: #f0f0f0;
}

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);
  display: none;
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-content {
  background-color: white;
  border: 4px solid black;
  padding: 2rem;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
}

.modal-header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.modal-title {
  font-size: 1.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}

.modal-body {
  line-height: 1.6;
}

.modal-section {
  margin-bottom: 1.5rem;
}

.modal-section h3 {
  font-size: 1.2rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  border-bottom: 2px solid black;
  padding-bottom: 0.25rem;
}

.modal-section p,
.modal-section li {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.modal-section ul {
  padding-left: 1.5rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 2rem;
  cursor: pointer;
  font-weight: bold;
  line-height: 1;
}

.modal-footer {
  text-align: center;
  margin-top: 2rem;
}

.game-over-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  display: none;
  z-index: 3000;
  justify-content: center;
  align-items: center;
  padding: 1rem;
}

.game-over-modal.active {
  display: flex;
}

.game-over-content {
  background-color: white;
  border: 4px solid black;
  padding: 2rem;
  max-width: 500px;
  text-align: center;
  position: relative;
}

.game-over-title {
  font-size: 1.8rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
  color: #cc0000;
}

.game-over-message {
  font-size: 1.2rem;
  margin-bottom: 2rem;
  line-height: 1.4;
}

.game-over-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.game-over-btn {
  background-color: white;
  border: 3px solid black;
  padding: 1rem;
  font-size: 1rem;
  font-family: "Courier New", monospace;
  font-weight: bold;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.1s ease;
}

.game-over-btn:hover {
  background-color: #f0f0f0;
  transform: translateY(-1px);
}

.game-over-btn.primary {
  background-color: black;
  color: white;
}

.game-over-btn.primary:hover {
  background-color: #333;
}

@keyframes successPulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.02);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes errorShake {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-3px);
  }
  75% {
    transform: translateX(3px);
  }
}

/* Mobile optimizations */
@media (max-width: 768px) {
  .home-button {
    top: 0.25rem;
    left: 0.25rem;
    padding: 0.3rem 0.6rem;
    font-size: 0.75rem;
    gap: 0.3rem;
  }

  .game-header {
    margin-top: 0.25rem;
    padding: 0.75rem;
  }

  .game-container {
    padding: 0.25rem;
    gap: 0.25rem;
  }

  .game-area {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .drop-zone,
  .word-pool {
    padding: 0.75rem;
    min-height: 150px;
  }

  .word-card {
    min-width: 70px;
    max-width: 140px;
    padding: 0.5rem 0.75rem;
  }

  .game-controls {
    grid-template-columns: 1fr 1fr;
    gap: 0.25rem;
  }

  .timer-container {
    height: 1.25rem;
  }

  .feedback {
    height: 2.5rem;
    font-size: clamp(0.8rem, 2.5vw, 1rem);
  }

  .modal-content {
    padding: 1.5rem;
    margin: 0.5rem;
  }

  .modal-title {
    font-size: 1.5rem;
  }

  .stat-item {
    font-size: clamp(0.7rem, 2vw, 0.9rem);
    padding: 0.4rem 0.5rem;
  }

  .game-over-content {
    padding: 1.5rem;
    margin: 0.5rem;
  }

  .game-over-title {
    font-size: 1.5rem;
  }

  .game-over-buttons {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

@media (max-width: 480px) {
  .home-button {
    top: 0.125rem;
    left: 0.125rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.7rem;
    gap: 0.25rem;
  }

  .game-container {
    padding: 0.125rem;
  }

  .game-header {
    margin-top: 0.125rem;
    padding: 0.5rem;
  }

  .game-title {
    margin-bottom: 0.25rem;
    font-size: clamp(1.2rem, 5vw, 1.8rem);
  }

  .word-card {
    min-width: 60px;
    max-width: 120px;
    padding: 0.4rem 0.6rem;
  }

  .drop-zone,
  .word-pool {
    padding: 0.5rem;
    min-height: 120px;
  }

  .game-controls {
    grid-template-columns: 1fr;
    gap: 0.25rem;
  }

  .feedback {
    height: 2rem;
    padding: 0.5rem;
    font-size: clamp(0.7rem, 2vw, 0.9rem);
  }

  .modal-content {
    padding: 1rem;
  }

  .stat-item {
    font-size: clamp(0.6rem, 1.8vw, 0.8rem);
    padding: 0.3rem 0.4rem;
  }

  .game-over-content {
    padding: 1rem;
  }

  .game-over-title {
    font-size: 1.2rem;
  }
}

@media (max-height: 600px) and (orientation: landscape) {
  .game-container {
    gap: 0.25rem;
  }

  .game-header {
    padding: 0.5rem;
    margin-top: 0.25rem;
  }

  .game-title {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
  }

  .drop-zone,
  .word-pool {
    min-height: 100px;
    padding: 0.5rem;
  }

  .feedback {
    height: 1.5rem;
    padding: 0.25rem;
  }

  .timer-container {
    height: 1rem;
  }
}

@media (hover: none) {
  .word-card:hover {
    transform: none;
    box-shadow: 2px 2px 0 black;
  }

  .word-card:active {
    transform: scale(1.05);
    box-shadow: 3px 3px 0 black;
  }

  .game-btn:hover,
  .home-button:hover {
    background-color: white;
    transform: none;
  }

  .home-button:hover {
    background-color: black;
  }

  .game-btn:active,
  .home-button:active {
    background-color: #f0f0f0;
    transform: scale(0.98);
  }

  .home-button:active {
    background-color: #333;
  }
}

.word-card:focus {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

.game-btn:focus,
.home-button:focus {
  outline: 3px solid #0066cc;
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  .word-card,
  .timer-bar,
  .drop-zone,
  .feedback,
  .game-btn,
  .home-button {
    transition: none;
    animation: none;
  }
}

@media (prefers-contrast: high) {
  .word-card {
    border-width: 3px;
  }

  .drop-zone {
    border-width: 4px;
  }

  .word-pool {
    border-width: 4px;
  }
}