:root{color-scheme:light;--ink:#17334b;--blue:#1557c7;--line:#cbd9e8;--muted:#52667d}*{box-sizing:border-box}body{margin:0;background:#faf9f6;color:var(--ink);font:16px/1.65 Inter,'Segoe UI',sans-serif}button,input{font:inherit}a{color:var(--blue)}button,a{touch-action:manipulation}button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid #80a6dd;outline-offset:4px}.skip{position:absolute;top:-60px}.skip:focus{top:8px;background:white;z-index:5}.improve-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 6%;border-bottom:1px solid var(--line);background:white}.brand{font-size:25px;font-weight:750;letter-spacing:-1px;color:var(--ink);text-decoration:none}.brand span{color:var(--blue)}main{max-width:1080px;margin:38px auto;padding:0 24px 48px}.eyebrow{font-size:12px;letter-spacing:1.5px;font-weight:700;color:var(--blue)}h1{font:42px/1.15 Georgia,serif;margin:12px 0 18px}h2{font-size:24px;line-height:1.3;margin:0 0 14px}h3{font-size:19px;line-height:1.4}.intro{font-size:18px;max-width:750px}.scope,.session-note{font-size:14px;color:var(--muted)}.improve-path{display:flex;gap:8px;flex-wrap:wrap;margin:24px 0}.improve-path span{padding:8px 16px;border:1px solid var(--line);border-radius:6px;background:white}.improve-path .current{background:#e9f1ff;border-color:var(--blue);font-weight:700}.skill-card,.question-card,.repair-card,.result-card{border:1px solid var(--line);border-radius:10px;padding:24px;background:white;margin:16px 0}.question-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(260px,.8fr);align-items:center;gap:20px}.question-grid svg{width:100%;height:auto;max-height:300px;background:#f4f8fe;border-radius:8px}.options{display:grid;gap:8px}.option{display:flex;align-items:center;gap:12px;padding:12px;border:1px solid var(--line);border-radius:6px;cursor:pointer}.option:has(input:checked){border-color:var(--blue);background:#edf4ff}.option input{accent-color:var(--blue);width:20px;height:20px}.button{display:inline-flex;justify-content:center;align-items:center;gap:8px;min-height:44px;padding:10px 18px;border:1px solid var(--blue);border-radius:6px;background:var(--blue);color:white;text-decoration:none;cursor:pointer}.button.secondary{background:white;color:var(--blue)}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}button:disabled{opacity:.5;cursor:default}.feedback{padding:14px;border-left:4px solid var(--blue);background:#edf4ff;margin-top:16px}.feedback p{margin:4px 0}.repair-card{border-left:4px solid #b47224}.repair-task{padding:12px;background:#fff5e7;border-radius:6px}.evidence-table{border-collapse:collapse;width:100%;margin:16px 0}.evidence-table th,.evidence-table td{border-bottom:1px solid var(--line);padding:12px 8px;text-align:left;vertical-align:top}.table-wrap{overflow-x:auto}.small{font-size:14px;color:var(--muted)}.pack-tag{font-size:13px;color:var(--blue);font-weight:650}#improve-app:focus{outline:none}.notice{color:#8c4e10}.session-note{margin-top:28px;max-width:780px}@media(max-width:700px){main{padding:0 16px 30px;margin-top:24px}h1{font-size:32px}.question-grid{grid-template-columns:1fr;gap:10px}.question-card,.repair-card,.skill-card,.result-card{padding:18px}.improve-header{padding:14px 18px}.improve-path span{padding:7px 11px;font-size:14px}h2{font-size:22px}}
.home-improve-entry{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:28px 0;padding:22px 24px;border:1px solid #bfd0e5;border-radius:10px;background:#f4f8ff;color:#17334b}.home-improve-entry h2{font-size:22px;margin:0 0 8px}.home-improve-entry p{margin:0;font-size:15px;line-height:1.6}.home-improve-entry a{white-space:nowrap}@media(max-width:700px){.home-improve-entry{align-items:flex-start;flex-direction:column;padding:18px}}
/* Chapter diagnostics: sampled evidence, distinct from completion bars. */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap}.td-tier{display:flex;flex-wrap:wrap;gap:12px 24px;border:1px solid var(--line);padding:16px;border-radius:8px;margin:20px 0}.td-tier legend{font-weight:650;padding:0 7px}.td-tier label{display:flex;align-items:center;gap:9px}.td-tier input{width:20px;height:20px;accent-color:var(--blue)}.td-question-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}.td-question-top .pack-tag{margin:0}.td-question-top .button{font-size:14px}.td-unit-label{font-size:15px;color:var(--muted);margin:20px 0 10px}.td-options{border:0;margin:18px 0;padding:0;display:grid;gap:10px}.td-options .option{overflow-wrap:anywhere}.td-number-label{display:block;font-weight:600;margin:18px 0 8px}.td-number{display:block;width:min(100%,340px);min-height:48px;padding:10px 12px;border:1px solid #9fb7d5;border-radius:6px;font-size:22px;color:var(--ink);background:white}.td-totals{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0}.td-totals>div{display:flex;flex-direction:column;gap:4px;background:#f0f5fc;padding:16px;border-radius:8px;min-width:0}.td-totals strong{font-size:28px;font-variant-numeric:tabular-nums}.td-totals span{font-size:14px;color:var(--muted)}.td-chart{display:grid;gap:14px;margin:24px 0}.td-unit-card{padding:22px;border:1px solid var(--line);border-radius:10px;background:white}.td-unit-card.excluded{background:#f2f3f5;color:#596b7c}.td-card-heading{display:flex;align-items:baseline;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:14px}.td-card-heading h3{margin:0;font-size:19px}.td-status{font-size:13px;border:1px solid var(--line);border-radius:5px;padding:3px 8px;background:#f4f7fc}.td-bar-row{display:grid;grid-template-columns:90px minmax(0,1fr) 48px;align-items:center;gap:12px;margin:10px 0;font-size:14px}.td-bar-row strong{text-align:right;font-variant-numeric:tabular-nums;font-size:18px}.td-track{height:18px;border-radius:5px;border:1px solid #c7d5e6;background:#eaf0f7;overflow:hidden}.td-fill{height:100%;background:#285caf}.td-fill.partial{background:repeating-linear-gradient(135deg,#6d8cba,#6d8cba 7px,#9fb5d3 7px,#9fb5d3 14px)}.td-bar-row:has(.td-fill.partial) strong{color:#52667d}.td-evidence{font-size:14px;color:var(--muted);margin:10px 0}.td-unit-card .actions{margin-top:12px}.td-unit-card .button{font-size:14px;padding:8px 14px}.td-correct{border-left-color:#277961}.repair-card details summary{cursor:pointer;color:var(--blue);font-weight:600;min-height:40px;padding:8px 0}.td-resume-note{border-left:4px solid #b47224;background:#fff5e7;padding:12px 16px}.td-totals+.small{margin-top:10px}@media(max-width:600px){.td-totals{grid-template-columns:1fr;gap:8px}.td-totals>div{flex-direction:row;align-items:center;justify-content:space-between;gap:12px;padding:12px}.td-totals strong{font-size:24px}.td-unit-card{padding:16px}.td-bar-row{grid-template-columns:70px minmax(0,1fr) 43px;gap:8px;font-size:13px}.td-bar-row strong{font-size:16px}.td-status{font-size:12px}.td-card-heading{gap:8px}.td-tier{flex-direction:column}.td-question-top{align-items:flex-start}.td-question-top .button{font-size:13px;padding:8px 12px}}
/* Compact comparison sheet: keep the units together before opening detailed repairs. */
.td-chart{gap:0;padding:0 20px;border:1px solid var(--line);border-radius:10px;background:white}.td-unit-card{display:grid;grid-template-columns:minmax(190px,.8fr) minmax(0,1.8fr) 145px;gap:14px 20px;border:0;border-bottom:1px solid var(--line);border-radius:0;padding:18px 0;align-items:center}.td-unit-card:last-child{border-bottom:0}.td-card-heading{display:block;margin:0}.td-card-heading h3{font-size:16px;line-height:1.5;margin:0 0 6px}.td-status{display:inline-block;font-size:12px}.td-score-stack{min-width:0}.td-score-stack .td-bar-row{margin:4px 0}.td-score-stack .td-evidence{font-size:12px;line-height:1.5;margin:6px 0}.td-score-stack>.small{font-size:12px;line-height:1.5;margin:4px 0}.td-unit-card>.actions{margin:0;display:grid;gap:7px}.td-unit-card>.actions .button{padding:7px 8px;min-height:38px;font-size:13px}.td-unit-card.excluded{margin:0 -20px;padding:18px 20px}.td-unit-card.excluded>p{grid-column:2/-1;margin:0}@media(max-width:760px){.td-chart{padding:0 14px}.td-unit-card{grid-template-columns:minmax(0,1fr);gap:8px;padding:16px 0}.td-card-heading{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}.td-card-heading h3{font-size:16px;margin:0}.td-unit-card>.actions{display:flex;flex-wrap:wrap;gap:8px}.td-unit-card.excluded{margin:0 -14px;padding:16px 14px}.td-unit-card.excluded>p{grid-column:auto}.td-status{flex-shrink:0;max-width:130px}.td-evidence{overflow-wrap:anywhere}}
/* Understanding categories keep a text label as well as colour. */
.td-fill.td-green{background:#287a50}.td-fill.td-yellow{background:#b27a12}.td-fill.td-red{background:#b33b3b}.td-fill.td-grey{background:#8a98a8}.td-fill.partial{background-image:repeating-linear-gradient(135deg,transparent,transparent 7px,#ffffff66 7px,#ffffff66 14px)}.td-status.td-level-green,.td-legend-item.td-level-green{color:#205f3f;background:#e9f5ed;border-color:#a8ceb4}.td-status.td-level-yellow,.td-legend-item.td-level-yellow{color:#77520c;background:#fff5dc;border-color:#ddc37c}.td-status.td-level-red,.td-legend-item.td-level-red{color:#8b2e2e;background:#fbecec;border-color:#dda8a8}.td-status.td-level-grey,.td-legend-item.td-level-grey{color:#526172;background:#eef1f4;border-color:#c7d0da}.td-legend{display:flex;flex-wrap:wrap;gap:8px;margin:22px 0 14px}.td-legend-item{display:inline-block;border:1px solid;border-radius:6px;padding:6px 9px;font-size:13px;line-height:1.5}.td-legend p{flex-basis:100%;margin:4px 0;font-size:13px;line-height:1.6;color:var(--muted)}.td-reason{font-size:12px;line-height:1.5;color:var(--muted);margin:5px 0}.td-assistance{border-top:1px solid var(--line);margin-top:20px;padding-top:4px}.td-assistance .actions{margin-top:12px}.td-help{border-left:3px solid #b27a12;background:#fff6e2;padding:12px 14px;margin:12px 0}.td-assisted{border-left-color:#b27a12}