Created a comprehensive code-breaking logic puzzle game with:

**Cipher Types** (6 procedurally generated):
- Number sequences (arithmetic, geometric, fibonacci, squares, primes)
- Caesar cipher with variable shifts
- Substitution cipher
- Morse code
- Binary to decimal
- Hexadecimal to decimal

**Core Features**:
- 3 game modes: Classic (unlimited time), Timed (60s), Daily Challenge (seeded puzzle)
- Progressive difficulty scaling with level
- Hint system (reveals half the answer, -100 score penalty)
- Limited attempts (5 per puzzle)
- Intelligent clue system (some clues unlock after first attempt)
- Real-time input with touch-friendly keypad
- Complete attempt history log

**Scoring System**:
- Base: 1000 points per solve
- Level bonus: +100 per level
- Attempts bonus: +50 per remaining attempt
- Time bonus: +10 per remaining second (timed mode)
- Hint penalty: -100 per hint used

**Visual Design**:
- Authentic hacker terminal aesthetic (green #00ff00 on black)
- CRT scanline effect overlay
- Digital monospace font (Share Tech Mono)
- Glowing text shadows and border effects
- Responsive grid layout for mobile

**Sound Effects**:
- Web Audio API synthesis
- Keystroke clicks
- Success/failure tones
- Ambient electronic background

File: `public/code-breaker-puzzle.html`