:root{--navy: #1F3A5F;--navy-deep: #142944;--navy-soft: #E8EEF5;--cream: #FAF6EE;--cream-deep: #F1ECE0;--paper: #FFFFFF;--ink: #1A1A1A;--ink-soft: #555555;--ink-mute: #888888;--rule: #E5DFD2;--terracotta: #C9663B;--terracotta-soft: #F4E1D5;--forest: #2D5F4A;--forest-soft: #E1EDE6;--gold: #B8893A;--gold-soft: #F4E8CE;--ok: #2A6A2E;--ok-bg: #E5F4E8;--off: #8A0000;--off-bg: #FBE5E5;--warn: #8A5A00;--warn-bg: #F4D9A0;--bg: var(--cream);--card: var(--paper);--line: var(--rule);--text: var(--ink);--muted: var(--ink-mute);--serif: "Fraunces", "Iowan Old Style", Georgia, serif;--sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;--mono: "JetBrains Mono", "SF Mono", Consolas, monospace;--radius-sm: 6px;--radius: 12px;--radius-lg: 20px;--shadow-sm: 0 1px 2px rgba(20,41,68,.06), 0 1px 3px rgba(20,41,68,.05);--shadow: 0 4px 8px rgba(20,41,68,.06), 0 8px 24px rgba(20,41,68,.08);--shadow-lg: 0 12px 32px rgba(20,41,68,.12), 0 24px 64px 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h3{font-size:26px;font-weight:500;color:var(--navy);margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--rule)}.od .reading-passage p{margin-bottom:14px}.od .reading-passage .word{cursor:pointer;transition:background .15s;padding:0 1px;border-radius:3px}.od .reading-passage .word:hover{background:var(--gold-soft)}.od .reading-passage .word.flagged{background:var(--gold-soft);border-bottom:2px solid var(--gold)}.od .question-block{background:var(--paper);border-radius:var(--radius);padding:24px 28px;border:1px solid var(--rule);margin-bottom:16px}.od .question-block .qnum{font-family:var(--serif);font-size:22px;color:var(--terracotta);font-weight:500;margin-bottom:4px}.od .question-block .qstem{font-weight:500;margin-bottom:16px;font-size:15px}.od .options{display:flex;flex-direction:column;gap:8px}.od .option{display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:8px;background:var(--cream);border:1px solid transparent;cursor:pointer;transition:all 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