.boards-container {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.5rem, 2vw, 1.25rem);
  justify-content: center;
  align-content: center;
  width: 100%;
  margin: 0 auto;
  padding: 0.625rem;
  flex: 1;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}

.boards-container::-webkit-scrollbar {
  width: 0.25rem;
}

.boards-container::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 0.625rem;
}

.game-grid {
  display: grid;
  grid-template-rows: repeat(var(--rows, 6), 1fr);
  gap: clamp(0.25rem, 1vh, 0.5rem);
  width: min-content;
  padding: clamp(0.5rem, 1.5vw, 1rem);
  background: var(--card-bg);
  border-radius: 1.125rem;
  border: 0.0625rem solid var(--glass-border);
  backdrop-filter: blur(1rem);
  box-shadow: var(--shadow-xl);
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.game-grid.solved {
  opacity: 0.4;
  filter: grayscale(0.5) blur(0.0625rem);
  transform: scale(0.96);
  pointer-events: none;
}

.grid-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.375rem;
  opacity: 0.3;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.grid-row.current,
.grid-row.past {
  opacity: 1;
}

.tile {
  --tile-size: clamp(2.625rem, 8vh, 3.875rem);
  width: var(--tile-size);
  height: var(--tile-size);
  border: 0.1rem solid var(--border);
  background: rgba(31, 41, 55, 0.4);
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: calc(var(--tile-size) * 0.45);
  font-weight: 700;
  text-transform: uppercase;
  user-select: none;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  color: var(--text);
  position: relative;
  box-shadow: inset 0 0 0.625rem rgba(255, 255, 255, 0.02);
}

@media (max-width: 30rem) {
  .tile {
    --tile-size: clamp(2.25rem, 11vw, 3.25rem);
    border-radius: 0.5rem;
  }
}

.tile.active {
  border-color: var(--primary);
  background-color: rgba(139, 92, 246, 0.15);
  box-shadow: 0 0 1.25rem var(--primary-glow);
  transform: scale(1.05);
  z-index: 1;
}

.tile[data-state="toggled"] {
  border-color: var(--text-muted);
  transform: scale(1.1);
}

.tile.correct {
  background: linear-gradient(135deg, var(--success), #059669) !important;
  border-color: transparent !important;
  color: white !important;
  box-shadow: 0 0.25rem 0.9rem rgba(16, 185, 129, 0.3);
}

.tile.present {
  background: linear-gradient(135deg, var(--warning), #d97706) !important;
  border-color: transparent !important;
  color: white !important;
  box-shadow: 0 0.25rem 0.9rem rgba(245, 158, 11, 0.3);
}

.tile.absent {
  background-color: var(--absent) !important;
  border-color: transparent !important;
  color: rgba(255, 255, 255, 0.8) !important;
  opacity: 0.8;
}

.mode-duo .tile {
  --tile-size: clamp(2rem, 6.5vh, 3rem);
}

.mode-quartet .tile {
  --tile-size: clamp(1.5rem, 5vh, 2.625rem);
  border-radius: 0.375rem;
  border-width: 0.0625rem;
}

@media (max-width: 37.5rem) {
  .mode-duo .tile,
  .mode-quartet .tile {
    --tile-size: clamp(1.75rem, 11vw, 2.625rem);
  }
}

@media (max-width: 1024px) {
  .boards-container {
    padding: 5px;
  }
}

@media (max-width: 850px) {
  .boards-container {
    flex-direction: column;
    justify-content: flex-start;
    align-items: center;
    overflow-y: auto;
  }

  .mode-duo .boards-container {
    flex-direction: row;
    flex-wrap: wrap;
  }
}

@media (max-width: 650px) {
  .boards-container,
  .mode-duo .boards-container {
    flex-direction: column;
    justify-content: flex-start;
  }

  .mode-quartet .boards-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
}

@media (max-width: 480px) {
  .mode-quartet .boards-container {
    grid-template-columns: 1fr;
  }
  .game-grid {
    padding: 8px;
  }
}