:root{--bg: #f3ede1;--card: #fffdf8;--ink: #2e2418;--ink-soft: #6b5c47;--line: #ddd0b8;--accent: #6b4226;--accent-dark: #4a2c18;--cork: #c8a06a;--wood: #5b3a1f;--gold: #b8862f;--iron: #4a3c2a;--iron-dark: #2e2418;--evidence: #2f6fa8;--credibility: #7454a6;--case: #b1592c;--green: #2e7d32;--green-soft: #e3f0e3;--amber: #b07d10;--amber-soft: #faf0d7;--red: #b3402e;--red-soft: #f7e2dc;--gray: #8a8a8a;--radius: 12px}*{box-sizing:border-box;margin:0;padding:0}html,body{height:100%}body{font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);background-image:radial-gradient(ellipse at top,#ede2cd 0%,var(--bg) 60%);color:var(--ink);font-size:16px;line-height:1.5}.app{max-width:1000px;margin:0 auto;padding:16px 14px 40px}h1{color:var(--accent-dark);font-size:1.6rem;line-height:1.2}h2{color:var(--accent-dark);font-size:1.2rem;margin-bottom:8px}h3{color:var(--accent-dark);font-size:1.05rem;margin:14px 0 6px}p{margin:6px 0}.card{background:var(--card);border:1px solid 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.build-state{color:var(--green)}.build-hint{font-size:.82rem;color:var(--ink-soft);margin-top:6px}.chapter-list{list-style:none;display:flex;flex-direction:column;gap:2px}.chapter-item{display:grid;grid-template-columns:30px 1fr auto;align-items:center;gap:8px;padding:6px 8px;border-radius:8px;font-size:.92rem}.chapter-dot{width:26px;height:26px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:#cbb689;color:#fff;font-weight:800;font-size:.85rem;border:2px solid #fff;box-shadow:0 1px 2px #2e24184d}.chapter-name{font-weight:700;color:var(--iron-dark)}.chapter-date{font-size:.8rem;color:var(--ink-soft);font-weight:700}.chapter-item.past .chapter-dot{background:var(--accent)}.chapter-item.current{background:#ece0bf;outline:2px solid var(--accent)}.chapter-item.current .chapter-dot{background:var(--accent-dark);animation:invite 2.1s ease-in-out infinite}.chapter-item.future .chapter-name{color:var(--ink-soft);font-weight:600}@keyframes invite{0%,to{box-shadow:0 0 #6b422680}50%{box-shadow:0 0 0 6px #6b42261f}}.result-headline{font-size:1.8rem;margin:4px 0 12px}.result-headline.win{color:var(--green)}.result-headline.mid{color:var(--accent)}.result-headline.low{color:var(--ink-soft)}.result-headline.fail{color:var(--red)}.result-art{width:100%;aspect-ratio:16/7;object-fit:cover;border-radius:10px;border:1px solid var(--line);margin-bottom:12px}.fall-note{font-size:1.02rem;color:var(--ink-soft);border-left:4px solid var(--gold);padding:4px 0 4px 12px;margin:10px 0}.ending-block{border-left:6px solid var(--accent);background:#f5ecd8;border-radius:8px;padding:12px 16px;margin:12px 0;font-size:1.06rem}.ending-block.brand{border-left-color:var(--accent)}.score-block{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:14px 18px;margin:14px 0}.score-head{display:flex;justify-content:space-between;align-items:baseline}.score-title{font-weight:800;color:var(--accent-dark)}.score-num{font-size:1.5rem;font-weight:900;color:var(--ink)}.score-num .muted{font-size:.95rem}.score-bar-track{display:block;height:16px;background:#ece1cc;border-radius:999px;border:1px solid var(--line);overflow:hidden;margin:8px 0}.score-bar{display:block;height:100%;border-radius:999px}.score-bar.win{background:var(--green)}.score-bar.mid{background:var(--gold)}.score-bar.low{background:var(--accent)}.score-bar.fail{background:var(--red)}.meter-final-row{display:flex;flex-wrap:wrap;gap:14px;color:var(--ink-soft);font-size:.95rem}.accuracy-block{display:flex;gap:16px;align-items:center;background:var(--card);border:2px solid var(--accent);border-radius:12px;padding:14px 18px;margin:14px 0}.accuracy-number{font-size:2.6rem;font-weight:900;color:var(--accent-dark)}.debrief{background:#ece0bf;border-radius:10px;padding:14px 16px;margin:12px 0}.replay-nudge{text-align:center}.teacher-app .row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between}.gate-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.code-card{gap:16px}.code-display{font-family:Consolas,monospace;font-size:2.6rem;font-weight:800;letter-spacing:.14em;color:var(--accent-dark);background:#f5ecd8;border:2px dashed var(--accent);border-radius:var(--radius);padding:10px 22px;display:inline-block;margin-top:4px}.switch{display:flex;align-items:center;gap:8px;font-weight:600;color:var(--ink-soft);cursor:pointer}.switch input{width:20px;height:20px;accent-color:var(--accent)}.approval-row{border-bottom:1px solid #ece1cc;padding:8px 0}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;margin-top:8px}th,td{text-align:left;padding:9px 10px;border-bottom:1px solid #e4d6b4;font-size:.95rem}th{color:var(--ink-soft);font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}td.num{font-weight:800}.row-actions{white-space:nowrap}.badge{display:inline-block;font-size:.76rem;font-weight:700;padding:3px 10px;border-radius:12px;color:#fff;white-space:nowrap;margin-left:4px}.badge.not_started{background:var(--gray)}.badge.in_progress{background:var(--amber)}.badge.completed{background:var(--green)}.badge.pending{background:var(--red)}.conn-dot{display:inline-block;width:9px;height:9px;border-radius:50%}.conn-dot.on{background:var(--green)}.conn-dot.off{background:var(--gray)}.class-accuracy{display:grid;grid-template-columns:1fr;gap:12px;margin-bottom:10px}.trail-stat{border:1px solid var(--line);border-top:6px solid var(--accent);border-radius:10px;padding:12px 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