/* Game specific styles for Sudoku */

.game-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.back-btn {
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.3s ease;
}

.back-btn:hover {
  transform: translateX(-5px);
  color: var(--primary);
}

.game-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  margin-bottom: 3rem;
  position: relative;
}

.game-info {
  background-color: var(--surface);
  padding: 2rem;
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.stat-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem;
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.1);
}

.stat-item i {
  font-size: 1.2rem;
  color: var(--primary);
}

.difficulty-selector,
.theme-selector,
.controls {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.difficulty-buttons,
.theme-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.difficulty-btn,
.theme-btn {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border: none;
  padding: 0.8rem;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
  display: flex;
  align-items: center;
}

.difficulty-btn::before,
.theme-btn::before {
  content: '';
  display: inline-block;
  width: 0.8rem;
  height: 0.8rem;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.3);
  margin-right: 0.8rem;
  transition: all 0.3s ease;
}

.difficulty-btn.active,
.theme-btn.active {
  background-color: rgba(127, 90, 240, 0.2);
}

.difficulty-btn.active::before,
.theme-btn.active::before {
  background-color: var(--primary);
  border-color: var(--primary);
}

.tool-buttons {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tool-btn {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--text);
  border: none;
  padding: 0.8rem;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-align: left;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-btn:hover {
  background-color: rgba(255, 255, 255, 0.2);
}

.tool-btn.active {
  background-color: var(--primary);
}

.action-btn {
  background-color: var(--accent);
  color: var(--text);
  border: none;
  padding: 0.8rem 1.5rem;
  border-radius: 30px;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: auto;
}

.action-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 5px 15px rgba(255, 137, 6, 0.4);
}

.gameplay-area {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.sudoku-board-container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.sudoku-board {
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  grid-template-rows: repeat(9, 1fr);
  gap: 1px;
  background-color: var(--text);
  border: 2px solid var(--text);
  width: 100%;
  max-width: 500px;
  aspect-ratio: 1/1;
  margin: 0 auto;
  border-radius: 5px;
  overflow: hidden;
  position: relative;
}

/* Create thicker borders for 3x3 boxes */
.sudoku-board::before,
.sudoku-board::after {
  content: '';
  position: absolute;
  background-color: var(--text);
  z-index: 1;
}

/* Horizontal thick lines */
.sudoku-board::before {
  width: 100%;
  height: 2px;
  left: 0;
  top: calc(33.33% - 1px);
  box-shadow: 0 calc(33.33% + 1px) 0 var(--text);
}

/* Vertical thick lines */
.sudoku-board::after {
  height: 100%;
  width: 2px;
  top: 0;
  left: calc(33.33% - 1px);
  box-shadow: calc(33.33% + 1px) 0 0 var(--text);
}

.cell {
  background-color: var(--surface);
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.5rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.cell:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.cell.selected {
  background-color: rgba(127, 90, 240, 0.3);
}

.cell.highlighted {
  background-color: rgba(127, 90, 240, 0.15);
}

.cell.same-number {
  background-color: rgba(44, 182, 125, 0.2);
}

.cell.given {
  color: var(--primary);
}

.cell.filled {
  color: var(--text);
}

.cell.mistake {
  color: #e74c3c;
}

.cell.notes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  padding: 2px;
}

.note {
  font-size: 0.7rem;
  opacity: 0.7;
  display: flex;
  justify-content: center;
  align-items: center;
}

.number-pad {
  display: flex;
  justify-content: center;
  margin-top: 1rem;
}

.numbers {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  max-width: 300px;
}

.number-btn {
  width: 50px;
  height: 50px;
  background-color: var(--surface);
  border: none;
  border-radius: 10px;
  color: var(--text);
  font-size: 1.5rem;
  font-weight: bold;
  cursor: pointer;
  transition: all 0.2s ease;
}

.number-btn:hover {
  background-color: var(--primary);
  transform: translateY(-3px);
}

.erase-btn {
  grid-column: span 2;
}

.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
  z-index: 100;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(5px);
}

.modal.active {
  display: flex;
}

.modal-content {
  background-color: var(--surface);
  padding: 2rem;
  border-radius: 15px;
  text-align: center;
  max-width: 90%;
  width: 400px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.results {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem;
  border-radius: 10px;
  background-color: rgba(255, 255, 255, 0.1);
}

.result-item i {
  color: var(--primary);
}

#new-record {
  color: var(--secondary);
  font-weight: bold;
}

.hidden {
  display: none;
}

/* Theme Variations */
/* Dark Theme */
.dark .sudoku-board {
  border-color: #444;
}

.dark .cell {
  background-color: #1a1a1a;
}

.dark .sudoku-board::before,
.dark .sudoku-board::after {
  background-color: #444;
}

.dark .cell.selected {
  background-color: rgba(127, 90, 240, 0.5);
}

.dark .cell.highlighted {
  background-color: rgba(127, 90, 240, 0.25);
}

/* Colorful Theme */
.colorful .cell:nth-child(odd) {
  background-color: rgba(127, 90, 240, 0.1);
}

.colorful .cell:nth-child(even) {
  background-color: rgba(44, 182, 125, 0.1);
}

.colorful .cell.selected {
  background-color: rgba(255, 140, 0, 0.3);
}

/* Media Queries */
@media (max-width: 768px) {
  .game-container {
    grid-template-columns: 1fr;
  }
  
  .game-info {
    order: 2;
  }
  
  .gameplay-area {
    order: 1;
  }
  
  .cell {
    font-size: 1.2rem;
  }
  
  .note {
    font-size: 0.5rem;
  }
  
  .numbers {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .number-btn {
    width: 40px;
    height: 40px;
    font-size: 1.2rem;
  }
}

/* Animations */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  50% {
    transform: translateX(5px);
  }
  75% {
    transform: translateX(-5px);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.pop-in {
  animation: fadeIn 0.3s, pulse 0.5s;
}

.shake {
  animation: shake 0.5s;
}