.conexo-instructions {
  text-align: center;
  margin-bottom: 18px;
  color: #6b4226;
}

.grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  max-width: 480px;
  margin: 0 auto 16px;
}

.tile {
  aspect-ratio: 1.4;
  border: 2px solid #e3cfa3;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: 'Playfair Display', serif;
  font-size: 0.8rem;
  font-weight: bold;
  text-transform: uppercase;
  background: #fffaf0;
  color: #3e2c1c;
  cursor: pointer;
  padding: 4px;
  user-select: none;
  box-shadow: 0 2px 6px rgba(107, 66, 38, 0.08);
  transition: background 0.15s, transform 0.1s, box-shadow 0.15s;
}

.tile:hover {
  box-shadow: 0 4px 10px rgba(107, 66, 38, 0.15);
}

.tile:hover {
  background: #f3e4c0;
}

.tile.selected {
  background: #a0522d;
  color: #fff;
  border-color: #a0522d;
  transform: scale(0.96);
}

.tile.solved {
  cursor: default;
  pointer-events: none;
}

.tile.solved.yellow { background: #d4a017; color: #fff; border-color: #d4a017; }
.tile.solved.green { background: #6b8e23; color: #fff; border-color: #6b8e23; }
.tile.solved.blue { background: #4682b4; color: #fff; border-color: #4682b4; }
.tile.solved.purple { background: #8e6bb8; color: #fff; border-color: #8e6bb8; }

.found-groups {
  max-width: 480px;
  margin: 0 auto 16px;
}

.found-group {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 8px;
  font-weight: bold;
  text-align: center;
  color: #fff;
}

.found-group.yellow { background: #d4a017; }
.found-group.green { background: #6b8e23; }
.found-group.blue { background: #4682b4; }
.found-group.purple { background: #8e6bb8; }

.controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.key {
  padding: 10px 16px;
  border: none;
  border-radius: 6px;
  background: #e3cfa3;
  color: #3e2c1c;
  font-weight: bold;
  cursor: pointer;
  font-size: 0.85rem;
}

.key:hover {
  background: #d4b87a;
}

.key.wide {
  padding: 10px 24px;
  background: #a0522d;
  color: #fff;
}

.key.wide:hover {
  background: #6b4226;
}

.mistakes {
  text-align: center;
  color: #6b4226;
}

@media (max-width: 480px) {
  .grid {
    max-width: 100%;
    gap: 6px;
  }

  .tile {
    font-size: 0.7rem;
    padding: 2px;
  }

  .found-groups,
  .found-group {
    max-width: 100%;
  }

  .key {
    padding: 8px 10px;
    font-size: 0.75rem;
  }

  .key.wide {
    padding: 8px 16px;
  }
}