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var(--panel-border);width:28px;height:28px;color:var(--text-secondary);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:.85rem;font-weight:700;transition:all .2s;display:flex}.option-card.selected .option-letter{background:var(--primary);border-color:var(--primary);color:#fff}.option-text{color:var(--text-primary);font-size:1rem;line-height:1.4}.question-navigator{background:var(--panel-bg);border:1px solid var(--panel-border);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);padding:1.25rem}.question-navigator h3{color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px;text-align:center;margin-bottom:1rem;font-size:.8rem}.nav-dots-grid{flex-wrap:wrap;justify-content:center;gap:.4rem;display:flex}.nav-dot{background:var(--panel-bg);border:1px solid 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