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.choice-key{background:#0077c8;background:var(--bb-blue);color:#fff;color:var(--bb-white)}.choice-option.correct .choice-key{background:#198754;background:var(--bb-success);color:#fff;color:var(--bb-white)}.choice-option.incorrect .choice-key{background:#dc3545;background:var(--bb-danger);color:#fff;color:var(--bb-white)}.choice-value{flex:1 1;font-size:1rem;line-height:1.6}.free-response-input{display:flex;flex-direction:column;gap:.5rem;gap:var(--space-sm)}.free-response-input label{color:#495057;color:var(--text-secondary);font-weight:500}.free-response-input input{border:2px solid #dee2e6;border:2px solid var(--border-color);border-radius:8px;border-radius:var(--radius-md);font-family:IBM Plex Mono,monospace;font-size:1.1rem;padding:1rem;padding:var(--space-md);transition:border-color .2s}.free-response-input 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0}.nav-next,.nav-prev,.nav-submit{border-radius:8px;border-radius:var(--radius-md);cursor:pointer;font-weight:600;padding:1rem 2rem;padding:var(--space-md) var(--space-xl);transition:all .2s}.nav-next,.nav-prev{background:#fff;background:var(--bg-card);border:2px solid #dee2e6;border:2px solid var(--border-color);color:#212529;color:var(--text-primary)}.nav-next:hover:not(:disabled),.nav-prev:hover:not(:disabled){border-color:#0077c8;border-color:var(--bb-blue);color:#0077c8;color:var(--bb-blue)}.nav-next:disabled,.nav-prev:disabled{cursor:not-allowed;opacity:.5}.nav-submit{background:#0077c8;background:var(--bb-blue);border:none;color:#fff;color:var(--bb-white)}.nav-submit:hover:not(:disabled){background:#003057;background:var(--bb-navy)}.question-counter{color:#495057;color:var(--text-secondary);font-weight:600}.nav-grid-container{background:#fff;background:var(--bg-card);border:1px solid #dee2e6;border:1px solid var(--border-color);border-radius:12px;border-radius:var(--radius-lg);box-shadow:0 1px 2px #0000000d;box-shadow:var(--shadow-sm);margin-top:1.5rem;margin-top:var(--space-lg);padding:1.5rem;padding:var(--space-lg)}.nav-grid-header{align-items:center;border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--border-color);display:flex;justify-content:space-between;margin-bottom:1rem;margin-bottom:var(--space-md);padding-bottom:1rem;padding-bottom:var(--space-md)}.nav-grid-header span{color:#212529;color:var(--text-primary);font-weight:600}.nav-legend{display:flex;font-size:.8rem;gap:1.5rem;gap:var(--space-lg)}.legend-item{align-items:center;color:#495057;color:var(--text-secondary);display:flex;gap:.25rem;gap:var(--space-xs)}.legend-item:before{border-radius:3px;content:"";height:12px;width:12px}.legend-item.answered:before{background:#0077c8;background:var(--bb-blue)}.legend-item.marked:before{background:#ffc107;background:var(--bb-warning)}.legend-item.current:before{border:2px 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var(--bb-navy)}.mark-indicator{font-size:.7rem;position:absolute;right:-4px;top:-4px}.results-container{max-width:700px}.bluebook-score-panel{background:#fff;background:var(--bg-card);border-radius:16px;border-radius:var(--radius-xl);box-shadow:0 10px 25px #0000001a;box-shadow:var(--shadow-lg);overflow:hidden}.score-hero{background:linear-gradient(135deg,#003057,#0077c8);background:linear-gradient(135deg,var(--bb-navy) 0,var(--bb-blue) 100%);color:#fff;color:var(--bb-white);padding:3rem;padding:var(--space-2xl);text-align:center}.score-badge{align-items:center;display:flex;flex-direction:column}.score-badge .score-label{font-size:1rem;opacity:.9}.score-badge .score-value{font-family:IBM Plex Mono,monospace;font-size:5rem;font-weight:700;line-height:1}.score-badge .score-range{font-size:1rem;opacity:.8}.score-sections{grid-gap:1px;background:#dee2e6;background:var(--border-color);display:grid;gap:1px;grid-template-columns:repeat(2,1fr)}.score-section{background:#fff;background:var(--bg-card);padding:2rem;padding:var(--space-xl);text-align:center}.score-section .section-score{font-family:IBM Plex Mono,monospace;font-size:2.5rem;font-weight:700}.score-section.rw .section-score{color:#6f42c1;color:var(--bb-purple)}.score-section.math .section-score{color:#0077c8;color:var(--bb-blue)}.score-section .section-label{color:#212529;color:var(--text-primary);font-weight:600;margin-bottom:.25rem;margin-bottom:var(--space-xs)}.score-section .section-raw{color:#495057;color:var(--text-secondary);font-size:.9rem}.score-breakdown{border-bottom:1px solid #dee2e6;border-bottom:1px solid var(--border-color);padding:2rem;padding:var(--space-xl)}.score-breakdown h3{color:#495057;color:var(--text-secondary);font-size:1rem;margin-bottom:1.5rem;margin-bottom:var(--space-lg)}.breakdown-bars{display:flex;flex-direction:column;gap:1rem;gap:var(--space-md)}.breakdown-item{grid-gap:1rem;grid-gap:var(--space-md);align-items:center;display:grid;gap:1rem;gap:var(--space-md);grid-template-columns:100px 1fr 60px}.breakdown-label{align-items:center;display:flex;gap:.5rem;gap:var(--space-sm)}.diff-dot{border-radius:50%;height:10px;width:10px}.diff-dot.easy{background:#198754;background:var(--bb-success)}.diff-dot.medium{background:#ffc107;background:var(--bb-warning)}.diff-dot.hard{background:#dc3545;background:var(--bb-danger)}.breakdown-bar-container{background:#e9ecef;background:var(--bb-gray-200);border-radius:4px;height:8px;overflow:hidden}.breakdown-bar{border-radius:4px;height:100%;transition:width .5s 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