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var(--ink);letter-spacing:.1em;text-align:center;min-width:74px;padding:9px 10px;font-family:Space Mono,monospace;font-size:11px;font-weight:700}.quiz-diagram-wrap{background:var(--paper2);border:1px solid var(--ink);min-height:340px;margin:0;position:relative;overflow:hidden}.quiz-diagram{aspect-ratio:16/9;width:100%;min-height:340px}.quiz-diagram svg,.quiz-diagram-image{width:100%;height:100%;display:block}.quiz-diagram-image{object-fit:contain}.quiz-options{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin-top:16px;display:grid}.quiz-option{background:var(--paper2);border:1px solid var(--grid);color:var(--ink);cursor:pointer;letter-spacing:.04em;text-align:left;text-transform:uppercase;min-height:52px;padding:12px;font-size:12px;font-weight:700}.quiz-option:hover:not(:disabled){border-color:var(--ink)}.quiz-option:disabled{cursor:default}.quiz-option.is-correct{border-color:var(--accent3);box-shadow:inset 0 0 0 2px 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span,.quiz-score-grid{color:#2d2d4a;letter-spacing:.08em;text-transform:uppercase;font-family:Space Mono,monospace;font-size:10px}.quiz-score-grid{gap:10px;display:grid}.quiz-score-grid div{background:var(--paper2);border:1px solid var(--grid);padding:10px}.quiz-score-grid span{color:var(--accent2);font-size:18px;font-weight:700;display:block}.diagram-bg{fill:#ede8da}.diagram-grid{stroke:#1a1a2e1f;stroke-width:1px}.diagram-lt{stroke:#1a1a2e;stroke-width:2px}.diagram-call{stroke:#1a1a2e59;stroke-dasharray:6 5;stroke-width:1.2px}.diagram-h{stroke:#2980b9}.diagram-v{stroke:#c0392b}.diagram-main{fill:none;stroke-linecap:round;stroke-linejoin:round;stroke-width:4px}.diagram-point{fill:var(--paper);stroke-width:3px}.diagram-label{fill:#1a1a2e;letter-spacing:.03em;font-family:Space Mono,monospace;font-size:13px}.diagram-note{fill:#5b5870;letter-spacing:.08em;text-transform:uppercase;font-family:Space 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