.spiral-option.selected{background:rgba(255,255,255,.4);border-color:#ffd700;box-shadow:0 0 15px rgba(255,215,0,.5)}.quiz-answer-btn.correct{background:#48bb78;border-color:#38a169}.quiz-answer-btn.incorrect{background:#f56565;border-color:#e53e3e}.progress-step.completed{border-color:#48bb78;background:rgba(72,187,120,.1)}.progress-step.completed::before{background:#48bb78;border-color:#48bb78;content:"✓";color:white;display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}