/* css/01-base.css —— 基础与工作台骨架：变量 / 重置 / 章节表 / 图表 / 数据对齐（早期迭代层）
 * 拆分自 public/index.html 单文件版（第 1/5 段，保持原始顺序）。
 * 本项目的 CSS 为多轮迭代叠加：后引入的文件覆盖先前的同名规则，
 * 修改样式请优先在本段内追加；不要调整 index.html 中的引入顺序。
 * 本段包含的迭代：
 *   - Refinement: content contrast, a single action, and a dedicated reading surface.
 *   - Precision pass: neutral type, compact summaries, and explicit selection.
 *   - Task-first composition.
 *   - Editorial alignment and readable secondary information.
 *   - Neutral typography and information reduction.
 *   - Place every metric with the view that gives it meaning.
 *   - Clear supporting text, comparative data, and close answer markers.
 *   - Full-width plotting and a quiet, explicit interaction hierarchy.
 *   - A reading interface instead of four isolated form fields.
 *   - Prioritise the next study task and make supporting data readable.
 *   - Explicit actions and directly labelled visual states.
 *   - One progress unit per row and annotations anchored to their data.
 *   - Keep graph labels with the graph, and keys with their calendar grid.
 *   - A single type hierarchy: chapter, performance, action, then explanation.
 */

:root{--bg:#f5f6f3;--paper:#fff;--ink:#26332b;--muted:#758077;--line:#e5e9e2;--green:#365e4c;--soft:#edf2ec;--faint:#fafbf9;--red:#a66555;--radius:12px;--rail:204px}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:14px;-webkit-font-smoothing:antialiased}button,input,select{font:inherit}button{cursor:pointer;color:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{border:0;background:none}button:disabled{cursor:default;opacity:.43}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #6e9980;outline-offset:3px}svg{display:block}.icon{width:18px;height:18px;flex:none;stroke-width:1.65}h1,h2,h3,p{margin:0}a{text-decoration:none;color:inherit}.mono,.metric-value,.num{font-variant-numeric:tabular-nums;letter-spacing:-.025em}.muted{color:var(--muted)}.small{font-size:12px}.eyebrow{font-size:12px;color:var(--muted);letter-spacing:.025em}.inline{display:flex;align-items:center;gap:8px}.between{display:flex;align-items:center;justify-content:space-between;gap:14px}.button{height:40px;padding:0 17px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:7px;background:var(--green);color:white;font-size:13px;font-weight:500;transition:background .16s,transform .16s}.button:hover{background:#294a3b;transform:translateY(-1px)}.button .icon{width:16px;height:16px}.button.secondary{background:white;color:var(--ink);border:1px solid var(--line)}.button.secondary:hover{background:var(--faint)}.text-button{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted);padding:6px 0}.text-button:hover{color:var(--green)}.text-button .icon{width:14px;height:14px}.pill{font-size:11px;white-space:nowrap;padding:4px 8px;border-radius:5px;background:var(--soft);color:var(--green)}.chip{font-size:11px;border:1px solid var(--line);color:var(--muted);border-radius:4px;padding:2px 6px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}
.sidebar{position:fixed;inset:0 auto 0 0;width:var(--rail);padding:28px 16px 20px;background:#fcfdfb;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:20}.brand{display:flex;gap:10px;align-items:center;padding:0 10px}.brand-mark{width:24px;height:26px;display:flex;gap:3px;align-items:center}.brand-mark i{display:block;width:4px;border-radius:2px;background:var(--green);transform:skewY(-20deg)}.brand-mark i:nth-child(1){height:14px}.brand-mark i:nth-child(2){height:24px}.brand-mark i:nth-child(3){height:19px}.brand-name{font-size:15px;font-weight:600;letter-spacing:-.3px}.brand-sub{font-size:10px;color:var(--muted);margin-top:3px;letter-spacing:1.2px}.workspace{margin:30px 8px 0;padding:12px 0 18px;border-bottom:1px solid var(--line);font-size:12px}.workspace .icon{width:14px;height:14px}.nav-label{font-size:10px;color:#929a92;letter-spacing:1px;padding:25px 12px 10px}.nav{display:flex;flex-direction:column;gap:5px}.nav button{height:42px;display:flex;align-items:center;gap:11px;padding:0 12px;border-radius:7px;font-size:13px;text-align:left;color:#748077;transition:background .18s,color .18s}.nav button:hover{background:#f0f3ed;color:var(--ink)}.nav button.active{background:#eaf0e8;color:var(--green);font-weight:550}.nav .badge{margin-left:auto;font-size:10px;color:#919a91;font-variant-numeric:tabular-nums}.nav button.active .badge{color:var(--green)}.sidebar-foot{margin-top:auto;border-top:1px solid var(--line);padding:18px 11px 0;display:flex;gap:9px;align-items:center}.avatar{width:29px;height:29px;border-radius:50%;background:#e8ede5;color:#56735e;font-size:11px;display:grid;place-items:center}.sidebar-foot .sub{font-size:10px;color:var(--muted);margin-top:3px}.mobile-menu{display:none}.main{margin-left:var(--rail)}.topbar{height:70px;padding:0 34px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:#fcfdfb}.crumbs{font-size:12px;color:#8d958d;display:flex;align-items:center;gap:12px}.crumbs b{font-weight:450;color:#4f5a52}.topbar-right{display:flex;gap:18px;align-items:center}.demo-label{display:flex;align-items:center;gap:6px;color:#858e85;font-size:10px}.demo-label:before{content:"";width:5px;height:5px;background:#9ba991;border-radius:50%}.search-button{display:flex;align-items:center;gap:9px;font-size:11px;color:#8c958b;background:var(--bg);border:1px solid var(--line);border-radius:6px;padding:7px 10px}.search-button .icon{width:14px;height:14px}.search-button kbd{font:10px inherit;border:1px solid #dce2d8;border-radius:3px;padding:0 4px;margin-left:30px}.content{max-width:1380px;margin:auto;padding:31px 34px 26px}.page-heading{display:flex;align-items:center;justify-content:space-between;margin-bottom:27px}.page-heading h1{font-size:28px;letter-spacing:-.7px;font-weight:600;line-height:1.35}.page-heading p{font-size:12px;color:var(--muted);margin-top:9px}.heading-actions{display:flex;gap:16px;align-items:center}.date{font-size:11px;color:#899287}.metrics{display:grid;grid-template-columns:repeat(4,1fr);margin-bottom:25px;border-bottom:1px solid var(--line);padding:0 0 23px}.metric{padding:0 28px;border-left:1px solid var(--line)}.metric:first-child{padding-left:0;border:0}.metric:last-child{padding-right:0}.metric-label{font-size:11px;color:#788379;display:flex;align-items:center;gap:6px}.metric-value{margin-top:9px;font-size:34px;line-height:1.2;font-weight:500;letter-spacing:-1.1px}.metric-value .unit{font-size:18px;margin-left:4px;letter-spacing:-.4px}.metric-foot{font-size:10px;color:#8a958a;margin-top:7px}.dashboard-grid{display:grid;grid-template-columns:minmax(0,2.3fr) minmax(260px,1fr);gap:21px;align-items:start}.panel{background:white;border:1px solid var(--line);border-radius:var(--radius)}.panel-head{padding:21px 23px 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19px;display:flex;flex-direction:column}.focus-title{font-size:21px;letter-spacing:-.5px;font-weight:550;margin-top:17px}.focus-desc{font-size:11px;line-height:1.8;color:#899386;margin-top:7px}.focus-detail{display:flex;gap:20px;margin-top:17px;padding-bottom:15px}.focus-detail span{display:block;font-size:10px;color:#8c9688;margin-bottom:6px}.focus-detail b{font-size:17px;font-weight:500}.focus-panel .button{margin-top:auto;width:100%;height:37px}.chapters-panel{margin-top:0;overflow:hidden}.chapter-table{width:100%;border-collapse:collapse;table-layout:fixed;margin-top:16px}.chapter-table th{text-align:left;font-size:10px;font-weight:400;color:#959d93;padding:9px 23px;background:#fafbf8;border-bottom:1px solid #edf0e9}.chapter-table th:nth-child(1){width:37%}.chapter-table th:nth-child(2){width:17%}.chapter-table th:nth-child(3){width:17%}.chapter-table th:nth-child(4){width:23%}.chapter-table th:nth-child(5){width:6%}.chapter-table td{padding:16px 23px;border-bottom:1px solid #edf0e9;font-size:11px;color:#677164;vertical-align:middle}.chapter-table tr:last-child td{border-bottom:0}.chapter-table tbody tr{cursor:pointer;transition:background .16s}.chapter-table tbody tr:hover{background:#f7faf4}.chapter-name{font-size:12px;font-weight:500;color:#394438;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chapter-table .fraction{font-size:10px;color:#949e90}.chapter-table td:last-child{padding-left:0;padding-right:13px;color:#b2b9ad}.chapter-table .icon{width:13px;height:13px}.progress-cell{display:flex;align-items:center;gap:10px}.track{height:4px;width:100%;max-width:74px;min-width:28px;background:#eef1e9;border-radius:2px;overflow:hidden}.track span{display:block;height:100%;background:#9fb397;border-radius:2px;animation:bar-in .65s cubic-bezier(.2,.7,.2,1) both;transform-origin:left}.progress-cell small{font-size:9px;color:#8f9989}.right-stack{display:flex;flex-direction:column;gap:20px}.rhythm-panel{padding:19px 21px 15px}.heatmap{display:grid;grid-template-columns:repeat(14,1fr);gap:5px;margin-top:18px}.heat-cell{height:16px;border-radius:3px;background:#eff2ec;cursor:default;transition:transform .15s}.heat-cell:hover{transform:translateY(-2px)}.heat-cell.today{outline:1px solid #698262;outline-offset:2px}.heat-caption{display:flex;justify-content:space-between;font-size:9px;color:#939c8d;margin-top:11px}.heat-legend{display:flex;gap:3px;align-items:center}.heat-legend i{display:block;width:8px;height:8px;border-radius:2px}.paper-panel{padding:19px 21px 6px}.paper-row{display:flex;justify-content:space-between;align-items:center;width:100%;padding:14px 0;border-bottom:1px solid #eef1e9;text-align:left}.paper-row:last-child{border:0}.paper-row b{font-size:12px;font-weight:500;display:block}.paper-row span{font-size:10px;color:#919c89;display:block;margin-top:5px}.paper-row .icon{width:14px;height:14px;color:#a0aa99}.paper-row:hover b{color:var(--green)}.footer-note{font-size:9px;color:#a0a99a;margin-top:18px;display:flex;justify-content:space-between}.view{animation:fade-up .3s ease both}.bottom-nav{display:none}.filters{display:flex;gap:12px;align-items:center;margin-bottom:18px}.input-wrap{display:flex;align-items:center;gap:8px;padding:9px 12px;background:white;border:1px solid var(--line);border-radius:7px}.input-wrap input{border:0;outline:none;background:none;min-width:0;color:var(--ink);font-size:12px;width:210px}.input-wrap .icon{width:16px;height:16px;color:#9aa591}.filters select{padding:9px 12px;border:1px solid var(--line);border-radius:7px;background:white;font-size:12px;color:#6c7767}.all-chapters .chapter-table{margin-top:0}.all-chapters .chapter-table th:nth-child(1){width:36%}.all-chapters .chapter-table th:nth-child(4){width:25%}.question-list{display:flex;flex-direction:column;gap:12px}.question-list-item{width:100%;text-align:left;padding:20px 23px;display:flex;align-items:center;gap:18px}.question-list-item:hover{background:#fbfcf9}.question-list-item .q-number{color:#a3ad9a;font-size:12px;min-width:28px}.question-list-item h3{font-size:14px;line-height:1.8;font-weight:450}.question-list-item p{font-size:10px;color:#949e8c;margin-top:6px}.question-list-item>.icon{margin-left:auto;color:#a2ac99}.empty-state{padding:65px 25px;text-align:center}.empty-state .icon{width:30px;height:30px;margin:auto;color:#a3b199}.empty-state h3{font-size:17px;font-weight:500;margin-top:18px}.empty-state p{font-size:12px;color:var(--muted);margin-top:10px;line-height:1.8}.empty-state .button{margin-top:22px}.papers-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.exam-card{padding:24px;text-align:left;transition:border-color .2s,transform .2s}.exam-card:hover{transform:translateY(-2px);border-color:#b6c6ae}.exam-card .exam-year{font-size:34px;font-weight:450;letter-spacing:-1.2px}.exam-card h3{font-size:13px;font-weight:450;margin-top:9px}.exam-card p{font-size:11px;color:var(--muted);margin-top:9px}.exam-card .between{margin-top:30px}.exam-card .icon{width:16px;height:16px}.history-row{padding:22px;display:grid;grid-template-columns:1fr 1.8fr 1fr 1fr;gap:20px;border-bottom:1px solid var(--line);font-size:12px}.history-row:last-child{border:0}.history-row strong{font-weight:500}.history-row small{font-size:10px;color:var(--muted);display:block;margin-top:5px}
.practice-layout{display:grid;grid-template-columns:minmax(0,1fr) 224px;gap:28px;align-items:start}.practice-heading{margin-bottom:23px}.practice-heading h1{font-size:23px;font-weight:550}.practice-progress{margin:17px 0 27px;height:3px;background:#e4e9df;border-radius:2px;overflow:hidden}.practice-progress span{display:block;height:100%;background:var(--green);transition:width .45s cubic-bezier(.2,.7,.2,1)}.question-panel{padding:31px 35px 25px;min-height:544px}.question-meta{display:flex;align-items:center;gap:10px;margin-bottom:21px;font-size:11px;color:#909a8a}.question-meta .num{color:#6d7a65}.question-title{font-size:19px;font-weight:500;line-height:1.9;letter-spacing:-.3px;margin-bottom:29px;max-width:660px}.options{display:flex;flex-direction:column;gap:12px}.option{display:flex;align-items:center;gap:15px;min-height:62px;padding:12px 16px;border:1px solid #e2e7dd;border-radius:8px;cursor:pointer;text-align:left;background:white;transition:border-color .16s,background .16s}.option:hover:not(:disabled){background:#fafcf8;border-color:#aabb9f}.option .letter{width:28px;height:28px;display:grid;place-items:center;border:1px solid #e1e7da;border-radius:6px;font-size:12px;color:#909b85;flex:none}.option .option-text{font-size:13px;line-height:1.8;flex:1}.option.selected{border-color:#739768;background:#f2f6ef}.option.selected .letter{border-color:#749967;background:#739768;color:white}.option.correct{border-color:#7a9e70;background:#f1f6ed}.option.incorrect{border-color:#bd9483;background:#faf2ed}.option:disabled{opacity:1;color:var(--ink)}.option .answer-icon{width:17px;height:17px;color:var(--green)}.option.incorrect .answer-icon{color:var(--red)}.question-actions{display:flex;justify-content:space-between;align-items:center;margin-top:27px;padding-top:20px;border-top:1px solid var(--line)}.question-actions .fav-toggle{color:#8b9680;font-size:11px;display:flex;gap:6px;align-items:center}.fav-toggle .icon{width:15px;height:15px}.fav-toggle.saved{color:var(--green)}.question-actions .button{min-width:108px}.explanation{margin-top:22px;padding:18px 19px;background:#f5f8f1;border-left:2px solid #9eb08e;border-radius:0 7px 7px 0;font-size:12px;line-height:1.95;animation:fade-up .25s ease}.explanation .feedback-title{font-size:12px;font-weight:550;color:var(--green);margin-bottom:7px}.explanation.wrong{background:#faf5f0;border-left-color:#c8a08d}.explanation.wrong .feedback-title{color:var(--red)}.keyboard-note{font-size:10px;color:#a0aa94;margin:17px 0}.keyboard-note kbd{font:9px inherit;border:1px solid #dde4d5;padding:2px 5px;border-radius:3px;margin:0 3px;background:#fcfdf9}.practice-side{padding-top:40px}.answer-sheet{padding:21px 19px}.answer-sheet h2{font-size:12px;font-weight:500}.answer-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;margin-top:19px}.answer-grid button{height:30px;border:1px solid var(--line);border-radius:5px;color:#8b9880;font-size:10px}.answer-grid button.current{border-color:#7c9870;background:#edf3e6;color:var(--green)}.answer-grid button.is-correct{background:#e4edde;border-color:#d2dfc8;color:#4e7040}.answer-grid button.is-wrong{background:#f4e7de;border-color:#ecd8cb;color:#9d7560}.sheet-legend{display:flex;gap:12px;margin-top:17px;font-size:9px;color:#909d83}.sheet-legend i{width:6px;height:6px;background:#b2c5a5;display:inline-block;border-radius:2px;margin-right:4px}.sheet-legend span:last-child i{background:#d7b6a0}.practice-summary{padding:23px 6px;font-size:11px;color:#8a977d;line-height:2.6}.practice-summary .between b{font-size:12px;font-weight:500;color:#526b44}.completion{padding:60px 30px 45px;text-align:center;max-width:720px;margin:auto}.completion-ring{width:140px;height:140px;margin:auto;position:relative}.completion-ring svg{width:140px;height:140px;transform:rotate(-90deg)}.completion-ring circle{fill:none;stroke-width:5}.completion-ring .ring-track{stroke:#e9eee2}.completion-ring .ring-value{stroke:#5b8050;stroke-linecap:round;transition:stroke-dashoffset .8s ease}.completion-ring .ring-text{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:center}.completion-ring strong{font-size:34px;font-weight:500;letter-spacing:-1px}.completion-ring small{font-size:10px;color:var(--muted);margin-top:5px}.completion h1{font-size:25px;font-weight:550;margin-top:25px}.completion>p{color:var(--muted);font-size:12px;margin-top:12px}.completion-actions{display:flex;justify-content:center;gap:12px;margin-top:29px}.completion .review-list{text-align:left;margin-top:35px;border-top:1px solid var(--line);padding-top:20px}.review-list h2{font-size:13px;font-weight:500;margin-bottom:15px}.review-list button{display:flex;gap:12px;width:100%;padding:13px 0;font-size:12px;line-height:1.8;text-align:left;border-bottom:1px solid var(--line)}
.overlay{position:fixed;inset:0;background:#26322b32;backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:100;padding:24px;animation:fade-in .18s}.modal{background:white;width:480px;max-width:100%;border:1px solid #e7eade;border-radius:15px;box-shadow:0 25px 100px #20322422;overflow:hidden;animation:fade-up .22s ease}.modal-head{padding:23px 25px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.modal-head h2{font-size:18px;font-weight:550}.close-button{padding:5px;color:#909e86}.modal-body{padding:23px 25px}.field-label{display:block;font-size:11px;color:#899681;margin:0 0 11px}.choice-grid{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-bottom:24px}.choice-grid button{border:1px solid var(--line);padding:12px;border-radius:7px;font-size:12px;text-align:left;display:flex;align-items:center;gap:8px}.choice-grid button.active{border-color:#9ab48a;background:#f2f7ed;color:var(--green)}.choice-grid .icon{width:15px;height:15px}.count-choices{display:flex;gap:9px;margin-bottom:23px}.count-choices button{padding:9px 20px;font-size:12px;border:1px solid var(--line);border-radius:6px}.count-choices button.active{background:#f1f6eb;border-color:#9ab48a;color:var(--green)}.modal-foot{padding:18px 25px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between}.modal-foot span{font-size:10px;color:var(--muted)}.search-modal .modal-body{padding:0}.search-field{display:flex;align-items:center;gap:12px;padding:19px 23px;border-bottom:1px solid var(--line)}.search-field input{width:100%;border:0;background:none;outline:none;font-size:14px}.search-results{max-height:390px;overflow:auto;padding:12px}.search-result{width:100%;display:flex;gap:11px;align-items:center;text-align:left;padding:13px;border-radius:6px;font-size:12px}.search-result:hover{background:#f3f7ed}.search-result>.icon{width:16px;height:16px;color:#839874}.search-result small{margin-left:auto;font-size:10px;color:#99a18f}.search-result p{font-size:10px;color:#8c987f;margin-top:4px}.toast{position:fixed;left:calc(50% + 102px);bottom:28px;transform:translateX(-50%);padding:10px 16px;background:#263c2e;color:#f7faf4;border-radius:7px;font-size:12px;z-index:200;box-shadow:0 8px 20px #2436211a;animation:fade-up .2s ease}.data-note{font-size:10px;color:#929d85;line-height:1.8;margin-top:15px}.fade{animation:fade-up .28s ease both}
@keyframes fade-up{from{opacity:0;transform:translateY(7px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{from{opacity:0}to{opacity:1}}@keyframes line-in{from{stroke-dashoffset:1000}to{stroke-dashoffset:0}}@keyframes bar-in{from{transform:scaleY(.05);opacity:.3}to{transform:scaleY(1);opacity:1}}
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@media(max-width:1180px){:root{--rail:178px}.topbar{padding:0 25px}.content{padding:27px 25px}.dashboard-grid{grid-template-columns:minmax(0,2fr) minmax(245px,1fr);gap:17px}.metric{padding:0 19px}.chapter-table th,.chapter-table td{padding-left:17px;padding-right:13px}.progress-cell{gap:6px}.track{max-width:52px}.metric-value{font-size:31px}.focus-panel{padding:22px 18px}.date{display:none}.practice-layout{grid-template-columns:minmax(0,1fr) 195px;gap:20px}.question-panel{padding:27px 26px}.question-title{font-size:18px}}
@media(max-width:960px){:root{--rail:168px}.dashboard-grid{grid-template-columns:minmax(0,1fr)}.focus-panel{height:auto;display:grid;grid-template-columns:1fr auto;gap:0 20px}.focus-panel>.between{grid-column:1/-1}.focus-title{margin-top:12px}.focus-desc{grid-column:1}.focus-detail{grid-column:2;grid-row:2/4;padding:0;margin:13px 0}.focus-panel .button{grid-column:1/-1;margin-top:17px;width:auto;justify-self:start}.chapters-panel{grid-row:3}.right-stack{display:grid;grid-template-columns:1fr 1fr;gap:17px}.practice-layout{grid-template-columns:1fr}.practice-side{display:none}.metrics .metric{padding:0 15px}.metrics .metric:first-child{padding-left:0}.metric-value{font-size:28px}.search-button kbd{margin-left:10px}.papers-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:700px){:root{--rail:0px}.sidebar{display:none}.main{margin-left:0}.topbar{height:58px;padding:0 20px}.crumbs{gap:7px;font-size:11px}.topbar-right{gap:14px}.search-button{border:0;background:none;padding:4px}.search-button span,.search-button kbd{display:none}.search-button .icon{width:18px;height:18px}.demo-label{font-size:9px}.content{padding:24px 20px 90px}.page-heading{margin-bottom:24px;align-items:flex-start;gap:10px}.page-heading h1{font-size:26px}.page-heading p{font-size:10px;margin-top:7px}.heading-actions .button{height:36px;padding:0 12px;font-size:11px}.heading-actions .button .icon{width:13px;height:13px}.metrics{grid-template-columns:repeat(2,1fr);row-gap:22px;margin-bottom:22px;padding-bottom:22px}.metric{padding:0 20px!important}.metric:nth-child(odd){padding-left:0!important;border-left:0}.metric-value{font-size:31px;margin-top:7px}.metric-value .unit{font-size:17px}.metric-label{font-size:10px}.metric-foot{font-size:9px}.dashboard-grid{gap:18px}.panel-head{padding:19px 18px 0}.panel-title{font-size:13px}.panel-subtitle{font-size:9px}.trend-panel{height:252px}.chart{height:166px;margin:11px 9px 0 5px}.chart-legend{margin:5px 17px;gap:14px;font-size:9px}.chart-legend .right-note{display:none}.segmented button{padding:4px 8px}.focus-panel{padding:18px}.focus-title{font-size:18px}.focus-desc{font-size:10px;max-width:205px}.focus-detail{gap:13px}.focus-detail b{font-size:16px}.focus-detail span{font-size:9px}.focus-panel .button{height:35px;font-size:11px}.chapters-panel{grid-row:auto}.chapter-table{margin-top:15px}.chapter-table th{font-size:9px;padding:9px 15px}.chapter-table td{padding:15px;font-size:10px}.chapter-table th:nth-child(1){width:40%}.chapter-table th:nth-child(2){width:21%}.chapter-table th:nth-child(3){width:21%}.chapter-table th:nth-child(4){display:none}.chapter-table th:nth-child(5){width:8%}.chapter-table td:nth-child(4){display:none}.chapter-name{font-size:11px}.chapter-table .fraction{font-size:9px}.right-stack{grid-template-columns:1fr;gap:18px}.rhythm-panel,.paper-panel{padding-left:18px;padding-right:18px}.heat-cell{height:18px}.footer-note{font-size:9px;line-height:1.8;display:block}.footer-note span:last-child{display:none}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:65px;display:flex;justify-content:space-around;align-items:center;z-index:30;background:#fcfdfbf2;backdrop-filter:blur(10px);border-top:1px solid var(--line);padding-bottom:env(safe-area-inset-bottom)}.bottom-nav button{display:flex;flex-direction:column;align-items:center;gap:4px;font-size:9px;color:#96a08d;padding:8px 11px}.bottom-nav button.active{color:var(--green)}.bottom-nav .icon{width:18px;height:18px}.filters{flex-wrap:wrap;gap:10px}.input-wrap{flex:1}.input-wrap input{width:100%}.filters select{font-size:11px}.all-chapters .chapter-table th:nth-child(1){width:45%}.all-chapters .chapter-table th:nth-child(2){width:22%}.all-chapters .chapter-table th:nth-child(3){width:25%}.question-list-item{padding:17px;gap:11px}.question-list-item h3{font-size:12px}.question-list-item .q-number{font-size:10px;min-width:19px}.papers-grid{grid-template-columns:repeat(2,1fr);gap:12px}.exam-card{padding:18px}.exam-card .exam-year{font-size:29px}.exam-card h3{font-size:11px}.exam-card p{font-size:9px}.exam-card .between{margin-top:22px}.history-row{padding:16px;grid-template-columns:1fr 1.5fr 1fr;gap:10px;font-size:10px}.history-row>div:last-child{display:none}.practice-heading h1{font-size:21px}.practice-heading .button{font-size:10px;padding:0 11px;height:33px}.practice-progress{margin:16px 0 21px}.question-panel{padding:23px 18px;min-height:0}.question-meta{font-size:10px;gap:8px;margin-bottom:17px}.question-title{font-size:17px;line-height:1.9;margin-bottom:24px}.option{min-height:66px;padding:11px 12px;gap:12px}.option .option-text{font-size:12px}.option .letter{height:25px;width:25px;font-size:11px}.question-actions{margin-top:22px;padding-top:17px}.question-actions .button{font-size:11px;height:36px;min-width:100px}.keyboard-note{display:none}.explanation{font-size:11px;padding:15px;margin-top:18px}.modal{border-radius:12px}.modal-head{padding:19px}.modal-body{padding:19px}.modal-foot{padding:15px 19px}.modal-foot span{font-size:9px}.choice-grid button{font-size:11px}.toast{left:50%;bottom:80px;white-space:nowrap}.completion{padding:39px 16px}.completion h1{font-size:23px}.completion>p{font-size:11px}.completion-actions{gap:9px}.completion-actions .button{padding:0 12px;font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}.chart-line-enter{stroke-dashoffset:0!important}}

/* Refinement: content contrast, a single action, and a dedicated reading surface. */
:root{--muted:#6c786d;--line:#e6eae2;--radius:9px}
.page-heading p{font-size:13px;color:#6d796d}.date{font-size:12px;color:#7a8677}.topbar{height:66px}.content{padding-top:29px}.brand-sub{font-size:10px;color:#71806c}.nav button{font-size:14px;color:#6c7969}.nav .badge{font-size:11px;color:#6f7d68}.nav-label{font-size:11px;color:#7d8a77}.crumbs{font-size:12px;color:#7b8876}.demo-label{font-size:11px;color:#6f7d68}.search-button{font-size:12px;color:#718169}.workspace{font-size:13px}
.next-action{display:flex;align-items:center;gap:34px;border:1px solid #dbe4d5;background:#eef3e9;border-radius:9px;padding:21px 25px;margin-bottom:26px}.next-action-copy{min-width:220px}.next-action-copy .eyebrow{font-size:12px;color:#6d8162}.next-action-copy h2{font-size:23px;font-weight:550;letter-spacing:-.4px;margin-top:7px}.next-action-data{display:flex;gap:33px;padding-left:30px;border-left:1px solid #d4dfcc}.next-action-data>div>span{display:block;font-size:12px;color:#6b7e5f;margin-bottom:9px}.next-action-data b{font-size:23px;font-weight:450;letter-spacing:-.5px}.next-action-data small{font-size:13px;font-weight:400;margin-left:4px}.next-action-cta{margin-left:auto;display:flex;align-items:center;gap:20px}.next-action-cta>span{font-size:12px;color:#718066}.next-action-cta .button{font-size:13px;height:41px;background:#365e4c;white-space:nowrap}.metrics{padding-bottom:23px;margin-bottom:24px}.metric-label{font-size:12px;color:#6c7b65}.metric-value{font-size:32px}.metric-foot{font-size:12px;color:#7b8974;margin-top:7px}.panel-title{font-size:15px;color:#2d3e29}.panel-subtitle{font-size:12px;color:#75836d}.panel-head{padding:20px 22px 0}.segmented button{font-size:12px;padding:5px 10px;color:#74846a}.text-button{font-size:12px;color:#6b7e61}.trend-panel{height:266px}.chart{height:176px;margin-top:14px}.chart text{font-size:11px;fill:#737f70}.trend-line{stroke-width:2.5}.trend-bar{fill:#e9eee5}.chart-legend{font-size:11px;color:#6f8066}.chart-legend .right-note{font-size:10px;color:#7b8973}.bar-key{background:#d4dfcb}.rhythm-panel{height:266px;padding:21px 22px}.week-labels{display:grid;grid-template-columns:repeat(7,1fr);gap:6px;text-align:center;font-size:10px;color:#7e8d73;margin-top:20px}.heatmap{grid-template-columns:repeat(7,1fr);gap:6px;margin-top:9px}.heat-cell{height:24px;border-radius:3px}.heat-caption{font-size:10px;color:#72846a;margin-top:14px}.heat-legend{gap:3px}.heat-legend i{width:9px;height:9px}.chapter-table th{font-size:11px;color:#77886c;padding:10px 22px;background:#fafcf7}.chapter-table td{font-size:12px;padding:15px 22px;color:#5e7152}.chapter-name{font-size:13px;color:#31432a}.chapter-table .fraction{font-size:11px;color:#829376}.progress-cell small{font-size:11px;color:#6a7e5e}.track{height:4px}.track span{background:#93aa83;animation:none}.chapter-table td:last-child{color:#8ca17b}.paper-panel{padding:21px 22px 6px}.paper-row{padding:18px 0}.paper-row b{font-size:13px}.paper-row span{font-size:11px;color:#7f9073}.paper-row .icon{color:#849a74}.footer-note{font-size:11px;color:#859679;margin-top:18px}.focus-detail span{display:inline}.data-note{font-size:11px;color:#728466}.all-chapters .chapter-table td{padding-top:16px;padding-bottom:16px}
body.practice-mode{background:#fcfdfb}body.practice-mode .sidebar,body.practice-mode .bottom-nav{display:none}body.practice-mode .main{margin-left:0}body.practice-mode .topbar{background:#fcfdfb;height:66px;padding:0 37px;position:relative}body.practice-mode .content{max-width:900px;padding:36px 40px 50px}.focus-back{font-size:13px;color:#687c60;display:flex;gap:9px;align-items:center}.focus-back .icon{width:16px;height:16px;transform:rotate(180deg)}.focus-back:hover{color:var(--ink)}.focus-course{font-size:12px;color:#7b8d72;position:absolute;left:50%;transform:translateX(-50%)}.practice-heading{margin-bottom:22px}.practice-heading .eyebrow{font-size:12px;color:#6c8062}.practice-heading h1{font-size:25px;font-weight:550;letter-spacing:-.5px;margin-top:10px}.practice-count{font-size:23px;color:#354b2d;letter-spacing:-.4px}.practice-count>span{font-size:13px;color:#8b9a7e}.quiz-status{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:14px}.quiz-status-label{font-size:12px;color:#768c69}.answer-grid{display:flex;gap:6px;margin:0}.answer-grid button{width:31px;height:29px;border:1px solid #dfe6d8;background:transparent;color:#809574;border-radius:4px;font-size:10px;position:relative;display:flex;align-items:center;justify-content:center;gap:2px}.answer-grid button.current{border:1.8px solid #3b5632;background:transparent;color:#2b4423}.answer-grid button.is-correct{background:#dce9d2;border-color:#cbdcbe;color:#46643a}.answer-grid button.is-wrong{background:#f1e2d8;border-color:#dec5b6;color:#8d624e}.answer-grid .icon{width:10px;height:10px;stroke-width:2}.practice-progress{height:2px;margin:0 0 30px;background:#e8eee1}.question-panel{border:0;background:transparent;border-radius:0;padding:0;min-height:0}.question-meta{font-size:12px;color:#7d9071;margin-bottom:22px}.question-meta .chip{font-size:11px;padding:3px 7px;color:#677e5a;border-color:#dce5d4;background:#f6f9f1}.question-title{font-size:22px;line-height:1.9;font-weight:450;letter-spacing:-.3px;max-width:none;margin-bottom:29px;color:#263821}.options{gap:13px}.option{min-height:65px;padding:15px 18px;border-color:#dde6d4;background:#fff;border-radius:7px}.option .option-text{font-size:15px;color:#364b2c;line-height:1.8}.option .letter{width:29px;height:29px;border-radius:5px;font-size:12px;color:#6e855e;border-color:#dce5d3}.option:hover:not(:disabled){background:#f6faf1;border-color:#a0b48e}.option.selected{background:#f0f6e9;border-color:#819e6c}.option.selected .letter{background:#5f7e4d;border-color:#5f7e4d}.question-actions{padding-top:22px;margin-top:26px;border-color:#e0e8d6}.question-actions .fav-toggle{font-size:12px;color:#6c835b}.question-actions .button{height:42px;font-size:13px;padding:0 21px}.question-actions .button:disabled{opacity:.6}.keyboard-note{font-size:11px;color:#7e9170;margin-top:19px}.keyboard-note kbd{font-size:10px;border-color:#dbe5d1;background:#f6f9f2}.explanation{font-size:13px;line-height:1.95;background:#f0f6e8;padding:20px 22px}.explanation .feedback-title{font-size:13px}.completion{border:0;background:transparent}.completion>p{font-size:13px}.completion-ring .ring-value{animation:ring-in .75s cubic-bezier(.2,.7,.2,1) both}.completion-ring small{font-size:12px}.toast{left:50%}@keyframes ring-in{from{stroke-dashoffset:383.3}to{stroke-dashoffset:var(--ring-end)}}
@media(max-width:1300px){.next-action-copy{min-width:180px}.next-action{gap:23px;padding:21px}.next-action-data{gap:24px;padding-left:23px}.next-action-cta>span{display:none}}
@media(max-width:960px){.dashboard-grid{grid-template-columns:minmax(0,2fr) minmax(220px,1fr)}.next-action-copy{min-width:155px}.next-action{gap:17px}.next-action-data{gap:20px;padding-left:17px}.next-action-data>div>span{font-size:10px}.next-action-cta .button{font-size:11px;padding:0 12px}.next-action-copy h2{font-size:20px}.next-action-data b{font-size:20px}.chapter-table th,.chapter-table td{padding-left:16px;padding-right:10px}.chapter-table th:nth-child(4),.chapter-table td:nth-child(4){display:none}.chapter-table th:nth-child(1){width:43%}.chapter-table th:nth-child(2){width:25%}.chapter-table th:nth-child(3){width:23%}.chapters-panel{grid-row:auto}.week-labels{gap:4px}.heatmap{gap:4px}.heat-cell{height:22px}}
@media(max-width:700px){.content{padding:24px 20px 90px}.page-heading p{font-size:12px}.page-heading{margin-bottom:22px}.heading-actions .button{font-size:11px;height:34px}.next-action{padding:19px 17px;display:grid;grid-template-columns:1fr auto;gap:17px 10px;margin-bottom:23px}.next-action-copy{min-width:0}.next-action-copy .eyebrow{font-size:11px}.next-action-copy h2{font-size:20px;margin-top:8px}.next-action-data{border:0;padding:0;gap:17px}.next-action-data>div>span{font-size:9px}.next-action-data b{font-size:20px}.next-action-data small{font-size:11px}.next-action-cta{grid-column:1/-1;margin:0;justify-content:space-between}.next-action-cta>span{display:block;font-size:10px}.next-action-cta .button{height:36px;font-size:11px}.metric-label{font-size:11px}.metric-foot{font-size:11px}.metric-value{font-size:30px}.metrics{margin-bottom:23px;row-gap:21px}.dashboard-grid{grid-template-columns:1fr;gap:18px}.panel-title{font-size:14px}.panel-subtitle{font-size:11px}.panel-head{padding:19px 17px 0}.segmented button{font-size:11px}.trend-panel{height:257px}.chart{height:175px}.chart-legend{font-size:10px;margin:5px 18px;gap:17px}.chart text{font-size:12px}.rhythm-panel{height:auto;padding:20px 18px}.week-labels{font-size:11px;margin-top:20px}.heatmap{gap:7px}.heat-cell{height:25px}.heat-caption{font-size:11px;margin-top:15px}.chapter-table th{font-size:10px}.chapter-table td{padding:15px;font-size:11px}.chapter-name{font-size:12px}.chapter-table .fraction{font-size:10px}.chapter-table th:nth-child(1){width:46%}.chapter-table th:nth-child(2){width:26%}.chapter-table th:nth-child(3){width:20%}.paper-panel{padding:20px 18px 6px}.paper-row b{font-size:13px}.paper-row span{font-size:11px}.footer-note{font-size:10px}.demo-label{font-size:9px}body.practice-mode .topbar{padding:0 20px;height:58px}body.practice-mode .topbar .demo-label{display:none}.focus-course{position:static;transform:none;font-size:10px}.focus-back{font-size:12px}.focus-back .icon{width:14px;height:14px}body.practice-mode .content{padding:28px 20px 40px}.practice-heading h1{font-size:24px}.practice-count{font-size:21px}.practice-heading{margin-bottom:22px}.quiz-status{align-items:flex-start;flex-direction:column;gap:12px}.quiz-status-label{font-size:11px}.answer-grid{flex-wrap:wrap;gap:6px}.answer-grid button{width:29px;height:28px}.practice-progress{margin:0 0 25px}.question-meta{font-size:11px;margin-bottom:19px}.question-title{font-size:19px;line-height:1.95;margin-bottom:25px}.option{padding:15px 13px;min-height:68px;gap:13px}.option .option-text{font-size:14px}.question-actions .button{height:40px;font-size:12px}.question-actions .fav-toggle{font-size:12px}.keyboard-note{display:none}.explanation{font-size:12px;padding:17px}.completion>p{font-size:12px}}

/* Precision pass: neutral type, compact summaries, and explicit selection. */
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/* Task-first composition. */
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@media(max-width:1180px){.topbar{padding:0 28px}.workspace-nav{margin-left:14px;gap:20px}.content{padding-left:32px;padding-right:32px}.overview-summary{gap:35px;grid-template-columns:minmax(0,1.5fr) minmax(330px,1fr)}.summary-metrics{padding-left:22px;gap:21px}.summary-stat>div{gap:8px}.task-title-line h2{font-size:29px}.study-body{gap:30px}.chapter-table td,.chapter-table th{padding-left:12px;padding-right:12px}}
@media(max-width:960px){.workspace-nav{gap:17px;margin-left:7px}.workspace-nav button{font-size:12px}.topbar{gap:15px;padding:0 24px}.workspace-brand{font-size:14px}.workspace-brand span{font-size:10px}.topbar-right{gap:13px}.search-button span{display:none}.search-button kbd{margin-left:4px}.overview-summary{grid-template-columns:1fr;gap:25px;padding-bottom:25px}.summary-metrics{grid-template-columns:repeat(4,1fr);border-left:0;padding:0;gap:21px}.summary-stat>div{align-items:flex-start;flex-direction:column;gap:5px}.summary-stat strong{font-size:23px}.task-title-line h2{font-size:31px}.study-body{grid-template-columns:minmax(0,1.6fr) minmax(300px,1fr);gap:26px}.chapter-table th:nth-child(4),.chapter-table td:nth-child(4){display:none}.chapter-table th:nth-child(1){width:39%}.chapter-table th:nth-child(2){width:29%}.chapter-table th:nth-child(3){width:21%}.chapter-table th:nth-child(5){width:11%}.row-action{font-size:11px}.row-action .icon{display:none}.study-insights .heat-cell{height:21px}.footer-note{font-size:11px}}
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@media(max-width:1180px){.chapter-progress{grid-template-columns:58px 72px;gap:10px}.chapter-progress .track{width:72px}.chapter-name{font-size:14px}.chapter-table td,.chapter-table th{padding-left:12px;padding-right:12px}.quiz-context .answer-grid{gap:3px}.answer-grid button{width:34px;height:34px;font-size:13px}}
@media(max-width:960px){.chapter-progress{grid-template-columns:54px 40px;gap:8px}.chapter-progress .track{width:40px}.chapter-table td{padding-left:10px;padding-right:10px}.chapter-table td,.chapter-table .fraction,.chapter-progress>.num,.chapter-table th{font-size:13px}.chapter-name{font-size:13px}.row-action{font-size:12px}}
@media(max-width:760px){.chapter-table th:nth-child(1),.all-chapters .chapter-table th:nth-child(1){width:37%}.chapter-table th:nth-child(2),.all-chapters .chapter-table th:nth-child(2){width:33%}.chapter-table th:nth-child(3),.all-chapters .chapter-table th:nth-child(3){width:15%}.chapter-table th:nth-child(4),.all-chapters .chapter-table th:nth-child(4){width:15%}.chapter-progress{grid-template-columns:46px 30px;gap:7px}.chapter-progress .track{width:30px}.chapter-table td,.chapter-table .fraction,.chapter-progress>.num{font-size:12px}.chapter-table th{font-size:11px}.chapter-name{font-size:13px}.chapter-table td,.chapter-table th{padding-left:7px;padding-right:7px}.row-action{font-size:11px}.quiz-context .answer-grid{display:grid;grid-template-columns:repeat(5,34px);gap:7px}.answer-grid button{width:34px;height:34px;font-size:13px}.quiz-context>div:first-child{font-size:13px}.question-title{font-size:21px}.option .option-text{font-size:15px}.keyboard-note{font-size:11px}.keyboard-note kbd{font-size:10px}.question-actions .fav-toggle{font-size:12px}.calendar-labels,.calendar-week time,.heat-key{font-size:13px}.heat-key{width:271px}.date{font-size:12px}}


/* Full-width plotting and a quiet, explicit interaction hierarchy. */
.content{padding-top:28px}.task-title-line{margin-top:10px}.task-priority p{margin-top:12px}.overview-summary{padding-bottom:20px;margin-bottom:24px}.study-insights .chart{height:auto;aspect-ratio:400/172;margin:12px 0 0}.chart svg{display:block;width:100%;height:100%}.chart-note{font-size:13px;line-height:20px;color:#616d64;margin-top:6px}.chart text{fill:#535f56;font-size:13px}.chart-baseline{color:#56635a}.chart-baseline strong{color:#46554a}.chapter-table .chapter-column{width:34%}.chapter-table .quantity-column{width:15%}.chapter-table .progress-column{width:17%}.chapter-table .accuracy-column{width:15%}.chapter-table .action-column{width:19%}.all-chapters .chapter-table th:nth-child(n),.chapter-table th:nth-child(n){width:auto}.chapter-table .accuracy-heading,.chapter-table .chapter-accuracy{text-align:right}.chapter-table .chapter-quantity{text-align:right;font-size:15px;color:#3e4b42;font-weight:450}.chapter-table .fraction{font-size:14px;color:#56635a;font-weight:400}.chapter-table .progress-visual{padding-left:14px;padding-right:14px}.chapter-table .progress-visual .track{width:100%;max-width:none;margin:0;height:5px;background:#e9eeea}.chapter-table .progress-visual .track span{background:#91ac96}.chapter-table .chapter-accuracy{color:#3e4b42;font-size:15px;font-weight:450}.chapter-table .chapter-actions{text-align:right;padding-right:0;padding-left:14px}.chapter-table td:nth-child(4),.chapter-table th:nth-child(4){display:table-cell}.calendar-labels,.calendar-week time,.heat-key{color:#56635a}.keyboard-note{font-size:14px;color:#56635a}.keyboard-note kbd{color:#56635a;background:#fbfcfa}.answer-grid button{background:transparent;border-color:#e7ece6;color:#56635a}.answer-grid button:hover{background:#f1f5ef}.answer-grid button.current{color:#fff;background:#365e4c;border-color:#365e4c}.answer-grid button.is-correct{color:#5b7759;background:#e9f0e5;border-color:#dce7d6}.answer-grid button.is-wrong{color:#966c51;background:#f6ece4;border-color:#ead9cb}.answer-grid button.current.is-correct{color:#fff;background:#365e4c;border-color:#365e4c}.answer-grid button.current.is-wrong{color:#fff;background:#9e7157;border-color:#9e7157}.option.selected,.option.selected:hover{background:#fcfdfb;border-color:#547461;box-shadow:none}.option.selected .choice-indicator{background:#365e4c;border-color:#365e4c}
@media(max-width:1180px){.chapter-table .chapter-quantity,.chapter-table .chapter-accuracy{font-size:14px}.chapter-table .fraction{font-size:13px}.chapter-table .progress-visual{padding-left:12px;padding-right:12px}.chapter-table .chapter-actions{padding-left:12px}}
@media(max-width:960px){.chapter-table .chapter-quantity,.chapter-table .chapter-accuracy{font-size:13px}.chapter-table .progress-visual{padding-left:10px;padding-right:10px}.chapter-table .chapter-actions{padding-left:10px}.content{padding-top:26px}}
@media(max-width:760px){.chapter-table .chapter-column{width:34%}.chapter-table .quantity-column{width:18%}.chapter-table .progress-column{width:12%}.chapter-table .accuracy-column{width:16%}.chapter-table .action-column{width:20%}.chapter-table .chapter-quantity,.chapter-table .chapter-accuracy,.chapter-table .fraction{font-size:12px}.chapter-table .progress-visual{padding-left:7px;padding-right:7px}.chapter-table .chapter-actions{padding-left:7px}.chart-note{font-size:12px}.content{padding-top:26px}.keyboard-note{font-size:11px}}


.chapter-table .row-action{display:inline-flex;vertical-align:middle}.study-insights{gap:18px}.rhythm-meta{margin-top:9px}.study-calendar{margin-top:12px}.calendar-weeks{margin-top:8px}.heat-key{margin-top:12px}

/* A reading interface instead of four isolated form fields. */
body.practice-mode .content{max-width:720px;padding-top:43px}.question-title{max-width:none;width:100%;font-size:23px;line-height:1.8;text-wrap:pretty;color:#202722;margin-bottom:29px}.quiz-context{margin-bottom:31px;gap:20px}.quiz-context .answer-grid{gap:4px}.answer-grid button{width:34px;height:34px;font-size:13px}.options{gap:0;border-top:1px solid #dfe6df;border-bottom:1px solid #dfe6df}.option{border:0;border-bottom:1px solid #e4eae3;border-radius:0;background:transparent;min-height:73px;padding:18px 17px;gap:14px;box-shadow:none;transition:background .16s ease}.option:last-child{border-bottom:0}.option:hover{background:#f7faf5;border-color:#e4eae3}.option.selected,.option.selected:hover{background:#f3f7f0;border-color:#e4eae3;box-shadow:none}.option.correct{background:#f0f6ed;border-color:#dfe6df;box-shadow:none}.option.incorrect{background:#fbf4ee;border-color:#eaded4;box-shadow:none}.option .option-text{font-size:16px;color:#303c33}.option .letter{font-size:14px;color:#5b695e}.choice-indicator{border-color:#bcc8bd}.question-actions{border:0;margin-top:25px;padding-top:0}.quiz-tools{gap:22px}.question-actions .fav-toggle{font-size:14px;color:#42634a}.keyboard-note{font-size:13px;color:#69766c}.keyboard-note kbd{font-size:12px;color:#657268}.question-actions .button{height:42px;min-width:122px}.chart-readout{justify-content:space-between;align-items:baseline;gap:14px;margin-top:14px}.current-reading{display:flex;align-items:baseline;gap:9px}.current-reading>span{font-size:14px;color:#5c6b60}.chart-readout .chart-baseline{display:flex;align-items:center;gap:7px;margin:0;font-size:14px;color:#5b695f;white-space:nowrap}.chart-readout .chart-baseline strong{font-size:14px;font-weight:500;color:#3e5043}.chart-baseline i{width:14px;border-color:#a0afa3}.chapter-table th{color:#5b695f}.chapter-table .chapter-quantity{color:#334739;font-weight:500}.chapter-table .chapter-accuracy{color:#3c4b40}.chapter-table .fraction{color:#56685b}.calendar-labels,.calendar-week time,.heat-key{color:#5b685f}.study-insights{gap:20px}
@media(max-width:1180px){.chart-readout{gap:12px}.chart-readout .chart-baseline{font-size:13px}.chart-readout .chart-baseline strong{font-size:13px}.current-reading{gap:7px}.current-reading>span{font-size:13px}.chart-readout strong{font-size:25px}}
@media(max-width:960px){.chart-readout .chart-baseline{gap:6px}.current-reading>span{font-size:12px}.chart-readout .chart-baseline,.chart-readout .chart-baseline strong{font-size:12px}.chart-readout strong{font-size:24px}}
@media(max-width:760px){body.practice-mode .content{padding-top:30px}.question-title{font-size:20px;line-height:1.85}.question-break{display:none}.option{padding:17px 14px;min-height:72px;gap:12px}.option .option-text{font-size:15px}.question-actions{margin-top:23px}.quiz-tools{gap:14px}.keyboard-note{font-size:11px}.keyboard-note kbd{font-size:10px}.question-actions .fav-toggle{font-size:12px}.question-actions .button{min-width:108px;height:41px}.chart-readout .chart-baseline,.chart-readout .chart-baseline strong{font-size:13px}.current-reading>span{font-size:13px}.chart-readout strong{font-size:26px}.answer-grid button{width:34px;height:34px}}


.chart-readout .chart-baseline{align-items:baseline}.chart-baseline i{align-self:center}

/* Prioritise the next study task and make supporting data readable. */
.overview-heading{margin-bottom:32px;min-height:39px}.overview-heading>div:first-child{display:flex;align-items:center;gap:12px}.overview-heading h1{font-size:15px;font-weight:500;letter-spacing:0;color:#414c44}.overview-heading p{font-size:14px;margin:0;color:#566057}.heading-divider{color:#a4ada5}.task-priority>.eyebrow{font-size:14px;color:#515c53;font-weight:500}.task-title-line{justify-content:flex-start;gap:28px;margin-top:10px}.task-title-line h2{font-size:32px;color:#202a23;font-weight:550}.task-title-line .button{padding:0 18px;font-size:14px}.task-priority p{margin-top:13px;color:#4c584f}.task-priority p strong{font-size:20px;color:#253d2b;font-weight:500}.task-priority p b{font-size:16px;color:#354e3b;font-weight:500}.overview-summary{padding-bottom:27px;margin-bottom:27px}.summary-stat>div>span,.summary-stat p{color:#4f5951}.summary-stat strong{color:#2c3930}.workspace-nav button{color:#48534b;font-weight:500}.workspace-nav button.active{font-weight:600}.workspace-brand span{color:#535e56}.search-button,.search-button kbd{color:#4b574f}.page-heading .date,.focus-course,.focus-back{color:#505c53}.button.secondary{font-size:14px}.chapter-table th{color:#48544b;font-weight:500}.chapter-table .chapter-quantity{color:#26362b;font-weight:500;padding-right:4px}.chapter-table .fraction{color:#737e75;font-weight:400}.chapter-table .progress-visual{padding-left:8px;padding-right:16px}.chapter-table .chapter-accuracy{font-weight:500;color:#35453a}.chart text{fill:#4c574f;font-size:13.5px}.chart-note{color:#525e55}.current-reading>span,.chart-readout .chart-baseline{color:#4c584f}.rhythm-meta,.calendar-labels,.calendar-week time,.heat-key{color:#4a554d}.calendar-labels,.calendar-week time{font-weight:500}.heat-cell{border:1px solid #d5ddd2}.heat-cell.today{outline:2px solid #315840;outline-offset:2px}.heat-key{width:100%;gap:13px;flex-wrap:wrap;line-height:1.4;font-size:13px}.heat-key i{border:1px solid #d5ddd2}.answer-grid button{border:0;background:transparent;color:#4b594e}.answer-grid button.is-correct,.answer-grid button.is-wrong{border:0}.answer-grid button.current{border:0}.quiz-context>div:first-child{color:#4e5b51}.quiz-context strong{color:#303f35;font-weight:500}.keyboard-note{color:#566159}.keyboard-note kbd{color:#4b574f;border:0;background:transparent;padding:0;font-size:13px}.question-actions .fav-toggle{color:#36553e}.option .letter{color:#536056}
@media(max-width:960px){.overview-heading>div:first-child{gap:8px}.overview-heading h1{font-size:14px}.overview-heading p{font-size:13px}.task-title-line{gap:20px}.task-title-line h2{font-size:29px}.task-title-line .button{padding:0 14px;font-size:13px}.heat-key{font-size:12px;gap:10px}}
@media(max-width:760px){.overview-heading{margin-bottom:24px;align-items:flex-start;gap:15px}.overview-heading>div:first-child{flex-wrap:wrap;gap:7px}.overview-heading p{font-size:12px}.heading-divider{display:none}.overview-heading h1{font-size:14px}.overview-heading .date{display:none}.task-title-line{gap:20px;flex-wrap:wrap}.task-title-line h2{font-size:29px}.task-title-line .button{height:40px;font-size:13px}.keyboard-note kbd{font-size:11px}.chapter-table .progress-visual{padding-left:5px;padding-right:7px}.heat-key{font-size:13px;gap:12px}}

/* Explicit actions and directly labelled visual states. */
.chapter-name{font-size:16px;color:#26322b}.chapter-table .num{letter-spacing:0}.chapter-table .row-action{font-size:14px;font-weight:500;color:#2e583f;gap:7px;min-width:55px;justify-content:flex-end}.chapter-table .row-action .icon{stroke-width:1.8}.chapter-table .row-action:hover{color:#183d26}.chart .mean-value{font-size:12px;fill:#4d6154;font-weight:500;letter-spacing:0}.chart-baseline i{border-color:#839488}.heat-key{font-size:13px;font-weight:500;gap:13px}.heat-key i{width:10px;height:10px;border-color:#c5d2c0}.heat-cell{border-color:#c5d2c0}.answer-grid button{padding:0}.answer-grid button.is-correct{background:#e2ecd9;color:#325739}.answer-grid button.is-wrong{background:#f3e3d8;color:#865032}.answer-grid .icon{width:13px;height:13px;stroke-width:2.5}
@media(max-width:1180px){.chapter-name{font-size:15px}.heat-key{font-size:12px;gap:11px}}
@media(max-width:760px){.chapter-name{font-size:13px}.chapter-table .row-action{font-size:11px;min-width:0;gap:4px}.heat-key{font-size:13px;gap:12px}}

/* One progress unit per row and annotations anchored to their data. */
.chapter-table .chapter-column{width:39%}.chapter-table .quantity-column{width:32%}.chapter-table .accuracy-column{width:14%}.chapter-table .action-column{width:15%}.chapter-table td{padding-top:12px;padding-bottom:12px}.chapter-table th{color:#3d4d42;font-weight:500}.chapter-progress-stack{display:grid;gap:5px;width:152px;max-width:100%;margin-left:auto}.chapter-progress-stack .chapter-quantity{font-size:15px;padding:0;line-height:22px;color:#273a2e}.chapter-progress-stack .fraction{color:#68796c;font-size:14px}.chapter-progress-stack .track{width:100%;max-width:none;height:4px;margin:0;background:#e6ece6}.chapter-progress-stack .track span{background:#8ca98e}.chapter-table .progress-heading>span{display:block;width:152px;max-width:100%;margin-left:auto;text-align:left}.chapter-table .chapter-accuracy{font-size:15px}.chapter-table .chapter-actions{padding-right:0}.chart text{fill:#3f5145;font-size:14px;font-weight:500}.chart .mean-value{font-size:13px;fill:#40594a;font-weight:500}.chart .gap-annotation text{font-size:13px;fill:#4e6654;font-weight:500}.chart-baseline i{border-color:#6e8274}.calendar-labels,.calendar-week time,.heat-key{color:#425348;font-weight:500}.rhythm-meta{color:#4e5f52}.footer-note{color:#7c867e;font-size:12px}.answer-grid button{background:#f3f6f0;border:0;color:#4b5b50}.answer-grid button:hover{background:#eaf0e5}.answer-grid button.current{background:#365e4c;color:#fff}.answer-grid button.is-correct{background:#e2ecd9;color:#325739}.answer-grid button.is-wrong{background:#f3e3d8;color:#865032}
@media(max-width:1180px){.chapter-progress-stack,.chapter-table .progress-heading>span{width:124px}.chapter-progress-stack .chapter-quantity,.chapter-table .chapter-accuracy{font-size:14px}.chapter-progress-stack .fraction{font-size:13px}}
@media(max-width:760px){.chapter-table .chapter-column{width:36%}.chapter-table .quantity-column{width:30%}.chapter-table .accuracy-column{width:17%}.chapter-table .action-column{width:17%}.chapter-progress-stack,.chapter-table .progress-heading>span{width:100%;max-width:94px}.chapter-progress-stack .chapter-quantity,.chapter-progress-stack .fraction,.chapter-table .chapter-accuracy{font-size:12px}.chapter-table td{padding-top:13px;padding-bottom:13px}.chapter-progress-stack{gap:5px}.chapter-progress-stack .track{height:3px}}

/* Keep graph labels with the graph, and keys with their calendar grid. */
.chart text{font-size:14px;fill:#33483a;font-weight:500}.chart .mean-value{font-size:13px;fill:#405b49;font-weight:500}.chart .gap-annotation text{font-size:13px;fill:#4f6655;font-weight:500}.chapter-progress-stack .chapter-quantity{font-size:15px;font-weight:500;color:#253b2c}.chapter-progress-stack .fraction{font-size:14px;color:#586c5d}.heat-key{display:grid;grid-template-columns:repeat(2,1fr);width:218px;margin-left:49px;margin-top:12px;gap:6px 15px;line-height:20px;font-size:14px;color:#354a3c;font-weight:500}.heat-key>span{gap:6px;white-space:nowrap}.heat-key i{width:10px;height:10px}.heat-cell.today{outline:none;border:1px solid #587b50;box-shadow:none}.choice-indicator{width:18px;height:18px;border:1.5px solid #91a293}.chart-readout{margin-top:14px}.calendar-week time,.calendar-labels{font-size:14px;color:#415447}
@media(max-width:1180px){.chapter-progress-stack .chapter-quantity{font-size:14px}.chapter-progress-stack .fraction{font-size:13px}.heat-key{font-size:13px}}
@media(max-width:760px){.chapter-progress-stack .chapter-quantity,.chapter-progress-stack .fraction{font-size:12px}.heat-key{font-size:13px;width:218px}.calendar-week time,.calendar-labels{font-size:13px}}

/* A single type hierarchy: chapter, performance, action, then explanation. */
.chapter-name{font-size:16px;font-weight:600;color:#26362c}.chapter-progress-stack .chapter-quantity{font-size:15px;font-weight:600;color:#263b2d}.chapter-progress-stack .fraction{font-size:13px;font-weight:400;color:#667369}.chapter-table .chapter-accuracy{font-size:15px;font-weight:500;color:#314537}.chapter-table th{font-size:13px;font-weight:400;color:#647267}.chapter-table .row-action,.study-chapters .text-button{font-size:14px;font-weight:600;color:#2b573b;gap:7px}.chapter-table .row-action .icon,.study-chapters .text-button .icon{width:14px;height:14px;stroke-width:1.8}.summary-stat strong{font-size:34px;line-height:1.15;font-weight:450;letter-spacing:-.7px}.summary-stat strong small{font-size:13px}.summary-stat>div>span,.summary-stat p{font-size:13px;color:#5b695f}.summary-stat>div{gap:8px}.chart-readout strong{font-size:30px;color:#365e4c;font-weight:450}.chart-readout .chart-baseline{font-size:13px;color:#617165;gap:6px}.chart-readout .chart-baseline strong{font-size:13px;font-weight:500;color:#405a48}.chart-baseline i{border-color:#9baa9d;width:13px}.current-reading>span{font-size:13px;color:#617165}.chart text{font-size:13px;fill:#53665a;font-weight:400}.heat-key{display:flex;grid-template-columns:none;width:267px;margin-left:0;margin-top:12px;gap:12px;flex-wrap:nowrap;font-size:12px;font-weight:500;color:#526558;line-height:20px}.heat-key>span{gap:5px;flex:none}.heat-key .heat-unit{color:#718074;font-size:11px;margin-left:auto}.heat-key i{width:9px;height:9px}.calendar-labels,.calendar-week time{font-size:13px;font-weight:400;color:#56695d}.study-insights{gap:25px}.quiz-navigation{flex-direction:row;align-items:center;gap:10px}.answer-card-label{font-size:12px;font-weight:400;color:#708074;white-space:nowrap}.answer-grid button{background:transparent;border:0;color:#506255;font-size:13px;font-weight:500}.answer-grid button:hover{background:#edf2e8}.answer-grid button.current{background:#365e4c;color:#fff}.answer-grid button.is-correct{background:#e2ecd9;color:#325739}.answer-grid button.is-wrong{background:#f3e3d8;color:#865032}.question-title{font-weight:450}
@media(max-width:1180px){.summary-stat strong{font-size:31px}.chapter-name{font-size:15px}.chapter-progress-stack .chapter-quantity,.chapter-table .chapter-accuracy{font-size:14px}.chapter-progress-stack .fraction{font-size:12px}.quiz-context .quiz-navigation{gap:7px}.answer-card-label{font-size:11px}.heat-key{font-size:12px;gap:10px}.chart-readout strong{font-size:28px}}
@media(max-width:960px){.answer-card-label{display:none}.summary-stat strong{font-size:29px}.chart-readout .chart-baseline,.chart-readout .chart-baseline strong{font-size:12px}}
@media(max-width:760px){.chapter-name{font-size:13px}.chapter-progress-stack .chapter-quantity,.chapter-progress-stack .fraction,.chapter-table .chapter-accuracy{font-size:12px}.chapter-table .row-action,.study-chapters .text-button{font-size:12px;gap:4px}.chart-readout strong{font-size:28px}.chart-readout .chart-baseline,.chart-readout .chart-baseline strong{font-size:13px}.heat-key{font-size:12px;width:267px;gap:10px}.summary-stat strong{font-size:29px}.quiz-context .quiz-navigation{align-items:flex-start}}

/* Direct readings make the trend a useful instrument. */
.summary-link{display:inline-flex;align-items:center;gap:6px;padding:0;font-size:13px;font-weight:500;color:#3c6247;line-height:19px;white-space:nowrap}.summary-link .icon{width:13px;height:13px;stroke-width:1.8}.summary-link:hover{color:#244c31}.summary-stat p{font-size:13px}.study-insights .chart{margin-top:18px}.chart .latest-reading text{font-size:20px;font-weight:600;fill:#2b533a;letter-spacing:-.3px}.chart .mean-value{font-size:13px;font-weight:500;fill:#566e5d;letter-spacing:0}.chart .gap-annotation text{font-size:13px;font-weight:500;fill:#607761}.chart text{font-size:13px;fill:#4e6556;font-weight:400}.heat-key{font-size:13px;color:#455f4c;gap:9px}.heat-key .heat-unit{font-size:12px;color:#65796a}.calendar-labels,.calendar-week time{font-size:13px;color:#4e6556}.answer-grid button{width:34px;height:34px;background:#f7f9f5;border:0;font-size:13px;font-weight:500;color:#506255}.answer-grid button:hover{background:#edf2e8}.answer-grid button.current{background:#365e4c;color:#fff}.answer-grid button.is-correct{background:#e2ecd9;color:#325739}.answer-grid button.is-wrong{background:#f3e3d8;color:#865032}.answer-card-label{color:#637969;font-size:12px}.quiz-context>div:first-child{gap:12px}.quiz-context .quiz-navigation{gap:10px}
@media(max-width:1180px){.heat-key{font-size:12px;gap:9px}.heat-key .heat-unit{font-size:11px}.summary-link{font-size:12px}.summary-stat p{font-size:12px}}
@media(max-width:760px){.heat-key{font-size:13px;gap:9px}.heat-key .heat-unit{font-size:12px}.chart .latest-reading text{font-size:20px}.summary-link{font-size:13px}.quiz-context .quiz-navigation{gap:8px}}

/* Quiet controls stay readable; the next task keeps the strongest emphasis. */
.summary-stat strong{font-size:26px;letter-spacing:-.4px;font-weight:450}.summary-stat>div>span,.summary-stat p{color:#3b4b3f;font-size:13px}.summary-stat strong small{font-size:12px}.summary-link{font-size:13px;color:#355d40}.task-explainer{font-size:14px;color:#3d4f42;gap:5px}.task-explainer b{font-size:15px;color:#304a37}.chart text{fill:#304336;font-size:13px;font-weight:500}.chart .latest-reading text{font-size:19px;fill:#2b533a;font-weight:600;letter-spacing:-.3px}.chart .mean-caption{font-size:12px;fill:#405645;font-weight:400}.chart .mean-value{font-size:14px;fill:#344f3d;font-weight:500}.chart .gap-annotation text{font-size:12px;fill:#455e4a;font-weight:400}.calendar-labels,.calendar-week time{font-size:13px;color:#354c3b;font-weight:500}.heat-key{font-size:13px;color:#354a3b;font-weight:500}.heat-key .heat-unit{font-size:12px;color:#5e7163}.keyboard-note,.keyboard-note kbd{font-size:13px;color:#34493c}.answer-grid button{font-size:14px;color:#2c4333;background:#f7f9f5;border:1px solid #e2e9dc;position:relative}.answer-grid button span{font-variant-numeric:tabular-nums;line-height:16px;display:block}.answer-grid button.current{background:#365e4c;color:#fff;border-color:#365e4c}.answer-grid button.current:after{content:"";position:absolute;bottom:-5px;left:11px;width:10px;height:2px;background:#365e4c;border-radius:1px}.answer-grid button.is-correct{background:#e2ecd9;color:#325739;border-color:#d5e2cb}.answer-grid button.is-wrong{background:#f3e3d8;color:#865032;border-color:#e6d1c2}.answer-grid .icon{width:13px;height:13px;stroke-width:2.5;align-self:center}.answer-card-label{font-size:12px;color:#3c5543}.focus-course,.focus-back{color:#3e5144}.quiz-context>div:first-child{color:#3b4f41}
@media(max-width:1180px){.summary-stat strong{font-size:25px}.heat-key{font-size:12px}.summary-stat>div>span,.summary-stat p{font-size:12px}}
@media(max-width:760px){.summary-stat strong{font-size:26px}.summary-stat>div>span,.summary-stat p{font-size:13px}.heat-key{font-size:13px}.keyboard-note,.keyboard-note kbd{font-size:11px}.answer-grid button{font-size:13px}.chart .latest-reading text{font-size:19px}}

/* Recommendation, chart readings, and controls each have a clear place. */
.chart-readout{display:flex;align-items:baseline;justify-content:space-between;gap:15px;margin-top:14px}.daily-headline{display:flex;align-items:baseline;gap:8px}.daily-headline>span{font-size:13px;color:#445b4d}.chart-readout .daily-headline strong{font-size:19px;color:#365e4c;font-weight:600;letter-spacing:-.2px}.daily-mean{font-size:13px;color:#42594a;white-space:nowrap}.chart-readout .daily-mean strong{font-size:13px;font-weight:600;color:#354f3f;letter-spacing:0}.study-insights .chart{margin-top:10px}.chart .mean-label{font-size:13px;fill:#49634f;font-weight:400}.chart .gap-annotation text{font-size:13px;fill:#4b6253;font-weight:400}.chapter-progress-stack .track{background:#e5ece8}.chapter-progress-stack .track span{background:#8aa697}.heat-cell{border-color:#d1ddd6}.heat-cell.today{border-color:#547c65}.heat-key{font-size:13px;gap:9px;color:#3c5747}.heat-key .heat-unit{margin-left:2px;font-size:13px;color:#526b5a}.quiz-context{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:14px 20px;align-items:center;margin-bottom:26px}.quiz-context .quiz-navigation{grid-column:1/-1;display:flex;flex-direction:row;justify-content:space-between;align-items:center;gap:12px;width:100%}.quiz-context .answer-card-label{font-size:13px;color:#506456}.quiz-context .fav-toggle{display:inline-flex;align-items:center;justify-content:flex-end;gap:7px;height:32px;padding:0;color:#365e4c;font-size:13px;font-weight:500;white-space:nowrap}.quiz-context .fav-toggle .icon{width:15px;height:15px;stroke-width:1.7}.quiz-context .fav-toggle.saved{color:#31583f}.question-actions .quiz-tools{gap:0}.question-actions .keyboard-note{color:#486150;font-size:13px}.question-actions .keyboard-note kbd{font-size:13px;color:#3b5343}.summary-link{font-size:13px}
@media(max-width:1180px){.chart-readout .daily-headline strong{font-size:18px}.daily-mean,.chart-readout .daily-mean strong{font-size:12px}.summary-link{font-size:12px}.heat-key,.heat-key .heat-unit{font-size:12px}}
@media(max-width:760px){.quiz-context{grid-template-columns:minmax(0,1fr) auto;gap:12px;margin-bottom:25px}.quiz-context .quiz-navigation{gap:12px;align-items:center}.quiz-context .fav-toggle{font-size:12px;height:28px}.quiz-context .answer-card-label{display:block;font-size:12px}.question-actions .keyboard-note,.question-actions .keyboard-note kbd{font-size:11px}.daily-mean,.chart-readout .daily-mean strong{font-size:13px}.heat-key,.heat-key .heat-unit{font-size:13px}.summary-link{font-size:13px}}

/* Explicit scope and room for the visual evidence. */
.overview-summary{align-items:start}.summary-metrics{row-gap:11px;align-self:start}.summary-scope{grid-column:1/-1;font-size:13px;line-height:20px;font-weight:500;color:#405848;margin:0}.study-body{grid-template-columns:minmax(0,1.25fr) minmax(360px,1fr);gap:40px}.study-insights{gap:20px}.rhythm-meta{margin-top:6px}.study-calendar{margin-top:10px}.calendar-weeks{margin-top:6px;gap:5px}.heat-key{margin-top:10px;font-size:14px;line-height:21px;gap:9px;color:#304a38}.heat-key .heat-unit{font-size:14px;color:#405a49;margin-left:2px}.calendar-labels,.calendar-week time{font-size:14px;color:#334d3b;font-weight:500}.heat-cell.is-empty{border-style:dashed;border-color:#bfd0c5}.heat-key>span:first-child i{border-style:dashed;border-color:#bfd0c5}.quiz-context .quiz-navigation{justify-content:flex-start;gap:12px}.quiz-context .answer-card-label{font-size:14px;color:#344f3d;font-weight:500}.question-actions .keyboard-note,.question-actions .keyboard-note kbd{font-size:13px;color:#334b3b}.quiz-context .fav-toggle{font-size:14px;color:#365e4c}.summary-stat>div>span,.summary-stat p{color:#405748}
@media(max-width:1180px){.study-body{grid-template-columns:minmax(0,1.3fr) minmax(310px,1fr);gap:30px}.heat-key,.heat-key .heat-unit{font-size:13px}.calendar-labels,.calendar-week time{font-size:13px}}
@media(max-width:960px){.study-body{grid-template-columns:minmax(0,1.3fr) minmax(285px,1fr);gap:25px}.summary-metrics{row-gap:9px}.summary-scope{font-size:12px}}
@media(max-width:760px){.study-body{grid-template-columns:1fr;gap:28px}.overview-summary{align-items:start}.summary-scope{font-size:13px}.quiz-context .quiz-navigation{justify-content:flex-start;gap:12px}.quiz-context .answer-card-label{font-size:13px}.quiz-context .fav-toggle{font-size:12px}.question-actions .keyboard-note,.question-actions .keyboard-note kbd{font-size:11px}.heat-key,.heat-key .heat-unit{font-size:14px}.calendar-labels,.calendar-week time{font-size:14px}}

.overview-v4 .footer-note{margin-top:15px}.footer-note>span:only-child{display:inline}

/* The calendar is one composition; answer navigation is one quiet sequence. */
.overview-heading{margin-bottom:24px}.overview-summary{padding-bottom:22px;margin-bottom:24px}.chapter-table th{font-size:14px;font-weight:500;color:#42594a}.summary-scope{font-weight:600;color:#3c5645}.summary-stat>div>span,.summary-stat p,.date,.overview-heading p{color:#405748}.daily-mean{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#415b4a}.mean-key{width:14px;height:0;border-top:1px dashed #9baa9d}.chart .mean-label{font-size:13px;fill:#3f5b49;font-weight:500}.chart .gap-annotation text{font-size:13px;fill:#455f4e;font-weight:400}.rhythm-meta{font-size:13px;color:#4a6453;margin-top:6px}.rhythm-content{display:grid;grid-template-columns:267px minmax(0,1fr);gap:24px;align-items:center;margin-top:10px}.rhythm-content .study-calendar{margin-top:0}.rhythm-side{display:flex;flex-direction:column;align-items:flex-start;border-left:1px solid #e0e8e3;padding-left:20px;color:#405b49}.rhythm-side>strong{font-size:34px;font-weight:450;line-height:1.1;letter-spacing:-.5px;color:#365e4c}.rhythm-side>span{font-size:14px;margin-top:7px;white-space:nowrap}.rhythm-side p{font-size:13px;margin-top:16px;color:#4c6655;white-space:nowrap}.rhythm-side p b{font-weight:600;color:#36533f}.heat-key,.heat-key .heat-unit{font-size:14px;font-weight:500;color:#304c3a}.calendar-labels,.calendar-week time{font-size:14px;font-weight:500;color:#334e3c}.quiz-context .quiz-navigation>.answer-card-label{font-size:14px;font-weight:500;color:#344f3d}.answer-grid button{border:0;background:transparent;color:#2c4333}.answer-grid button:not(.current):not(.is-correct):not(.is-wrong){border:0;background:transparent}.answer-grid button.is-correct,.answer-grid button.is-wrong{border:0;background:transparent}.answer-grid button.current{border:0;background:#365e4c;color:#fff}.answer-grid button.current.is-correct{background:#365e4c;color:#fff}.answer-grid button.current.is-wrong{background:#9e7157;color:#fff}.answer-grid button:hover:not(.current){background:#f0f4ed}.answer-grid .icon{width:13px;height:13px;stroke-width:2.5}.question-actions .keyboard-note,.question-actions .keyboard-note kbd{color:#334b3b}
@media(max-width:1180px){.rhythm-content{grid-template-columns:267px minmax(0,1fr);gap:12px}.rhythm-side{padding-left:12px}.rhythm-side>strong{font-size:30px}.rhythm-side>span{font-size:12px}.rhythm-side p{font-size:12px}.chapter-table th{font-size:13px}}
@media(max-width:960px){.rhythm-content{grid-template-columns:267px;gap:14px}.rhythm-side{border-left:0;border-top:1px solid #e0e8e3;padding:12px 0 0;flex-direction:row;align-items:baseline;gap:8px}.rhythm-side>strong{font-size:26px}.rhythm-side>span{margin-top:0;font-size:12px}.rhythm-side p{margin:0 0 0 auto}}
@media(max-width:760px){.overview-heading{margin-bottom:24px}.rhythm-content{grid-template-columns:267px minmax(0,1fr);gap:14px}.rhythm-side{border-top:0;border-left:1px solid #e0e8e3;padding:0 0 0 12px;display:flex;flex-direction:column;align-items:flex-start;gap:0}.rhythm-side>strong{font-size:29px}.rhythm-side>span{font-size:12px;margin-top:6px}.rhythm-side p{font-size:12px;margin:13px 0 0}.calendar-labels,.calendar-week time,.heat-key,.heat-key .heat-unit{font-size:14px}.chapter-table th{font-size:12px}}
@media(max-width:420px){.rhythm-content{grid-template-columns:267px;gap:13px}.rhythm-side{border:0;padding:0;flex-direction:row;align-items:baseline;gap:8px}.rhythm-side>strong{font-size:26px}.rhythm-side>span{margin:0}.rhythm-side p{margin:0 0 0 auto}}

/* Data columns and compact state marks */
.chapter-table .progress-heading>span{text-align:right}
.chapter-progress-stack .chapter-quantity{font-variant-numeric:tabular-nums;letter-spacing:0}
.chapter-progress-stack .fraction{letter-spacing:0}
.daily-mean{display:flex;align-items:baseline;gap:5px;color:#42594a}
.daily-mean .mean-key{align-self:center;margin-right:2px}
.chart-readout .daily-mean strong{font-size:14px;font-weight:500;color:#42594a;letter-spacing:0}
.rhythm-content{align-items:start}
.rhythm-side{margin-top:22px;padding-left:20px;min-height:118px}
.heat-key{width:auto;max-width:none;margin-top:14px;gap:17px;font-size:14px;font-weight:500;color:#344e3e}
.heat-key i{width:9px;height:9px}
.answer-grid{gap:5px;align-items:center}
.answer-grid button{display:block;position:relative;flex:none;width:36px;height:40px}
.answer-grid button span{position:absolute;top:6px;left:0;right:0;line-height:16px;text-align:center;font-size:14px}
.answer-grid .icon{position:absolute;left:11px;bottom:3px;width:14px;height:14px;stroke-width:2.5}
.answer-grid button.current:after{display:none}
.answer-grid button.current span{top:12px}
.answer-grid button.current.is-correct span,.answer-grid button.current.is-wrong span{top:6px}
@media(max-width:1180px){.rhythm-side{padding-left:12px}}
@media(max-width:960px){.rhythm-side{margin-top:0;min-height:0;padding:12px 0 0}}
@media(max-width:760px){.rhythm-side{margin-top:22px;min-height:118px;padding:0 0 0 12px}.answer-grid{gap:2px}.answer-grid button{width:28px}.answer-grid .icon{left:7px}.heat-key{font-size:12px;gap:13px}}
@media(max-width:420px){.rhythm-side{margin-top:0;min-height:0;padding:0}}

/* One alignment system for dates, numbers and quiz states */
.chapter-progress-stack .chapter-quantity,.chapter-table .chapter-accuracy,.calendar-week time,.chart .axis-date,.heat-key{font-family:Arial,"Noto Sans CJK SC",sans-serif;font-variant-numeric:tabular-nums}
.chapter-progress-stack .chapter-quantity{font-weight:600;line-height:22px}
.chapter-progress-stack .fraction{font-size:13px;color:#4b5d51;font-weight:400}
.chart .axis-date{font-size:13px;fill:#3b4c41;font-weight:400}
.heat-key{width:267px;justify-content:flex-start;gap:16px;margin-top:12px;color:#34483b;font-weight:500}
.heat-key span{white-space:nowrap}
.rhythm-side{margin-top:26px;height:119px;min-height:0}
.rhythm-side>strong{font-family:Arial,sans-serif;font-weight:400;line-height:38px;letter-spacing:-.6px}
.rhythm-side>strong small{font-family:inherit;font-size:13px;color:#405b49;margin-left:5px;letter-spacing:0}
.rhythm-side>span{margin-top:5px;font-size:14px;color:#344e3d}
.rhythm-side p{font-size:14px;margin-top:auto;color:#405a48;line-height:20px}
.answer-grid button span{font-family:Arial,sans-serif;font-variant-numeric:tabular-nums;font-weight:500}
.answer-grid button.current span{top:6px}
.answer-grid button:not(.current):not(.is-correct):not(.is-wrong){background:#f6f8f5}
.answer-grid button.is-correct:not(.current){background:#eef4ed}
.answer-grid button.is-wrong:not(.current){background:#f9f0e8}
.answer-grid .icon{width:14px;height:14px;left:11px;bottom:3px;stroke-width:2.7}
@media(max-width:960px){.rhythm-side{margin-top:0;height:auto}.rhythm-side p{margin-left:auto;margin-top:0}}
@media(max-width:760px){.rhythm-side{margin-top:26px;height:119px}.rhythm-side>strong{font-size:29px;line-height:34px}.rhythm-side>span,.rhythm-side p{font-size:12px}.rhythm-side p{margin-left:0;margin-top:auto}.heat-key{font-size:12px;gap:13px}.chapter-progress-stack .fraction{font-size:12px}.answer-grid .icon{left:7px}}
@media(max-width:420px){.rhythm-side{margin-top:0;height:auto}.rhythm-side p{margin-left:auto;margin-top:0}.rhythm-side>span{margin-top:0}}

/* A shared grid from the first metric to the final diagram */
.overview-summary{grid-template-columns:minmax(0,1.25fr) minmax(360px,1fr);gap:40px}
.summary-metrics{border-left:0;padding-left:0;column-gap:32px}
.chapter-table .progress-heading>span{text-align:left}
.chapter-progress-stack{display:flex;flex-direction:row-reverse;align-items:center;justify-content:space-between;gap:12px;width:152px}
.chapter-progress-stack .track{width:62px;max-width:62px;min-width:0;flex:none;height:4px}
.chapter-progress-stack .chapter-quantity{display:grid;grid-template-columns:25px 5px 27px;gap:4px;justify-content:end;width:78px;flex:none;line-height:22px;font-size:14px;font-weight:600;text-align:right}
.quantity-slash,.quantity-total{font-size:14px;font-weight:400;color:#3d4d42}
.chapter-table th{font-size:14px;color:#34473a;font-weight:500}
.chart .axis-date{font-size:13px;font-weight:500;fill:#34473b}
.chart .gap-annotation text{font-family:Arial,"Noto Sans CJK SC",sans-serif;font-size:12px;fill:#576b5e;font-weight:400}
.calendar-week time,.heat-key{font-size:14px;color:#34483b}
.heat-key span:first-child i{border-color:#b7c6bd}
.summary-stat p,.summary-stat>div>span,.rhythm-meta,.exam-shortcut p{color:#48574d}
.answer-grid .icon{width:18px;height:18px;left:9px;bottom:1px;stroke-width:2.4}
.answer-grid button span,.answer-grid button.current span{top:5px}
@media(max-width:1180px){.overview-summary{grid-template-columns:minmax(0,1.3fr) minmax(310px,1fr);gap:30px}.summary-metrics{padding-left:0;column-gap:20px}.chapter-progress-stack{width:124px;gap:6px}.chapter-progress-stack .track{width:46px;max-width:46px}.chapter-progress-stack .chapter-quantity{width:72px;grid-template-columns:24px 5px 25px;gap:3px}.chapter-progress-stack .chapter-quantity,.quantity-slash,.quantity-total{font-size:13px}}
@media(max-width:960px){.overview-summary{grid-template-columns:minmax(0,1.3fr) minmax(285px,1fr);gap:25px}}
@media(max-width:760px){.overview-summary{grid-template-columns:1fr;gap:22px}.chapter-progress-stack{display:grid;gap:5px;width:100%;max-width:94px}.chapter-progress-stack .track{width:100%;max-width:none}.chapter-progress-stack .chapter-quantity{width:100%;grid-template-columns:22px 4px 23px;gap:2px}.chapter-progress-stack .chapter-quantity,.quantity-slash,.quantity-total{font-size:12px}.chapter-table th{font-size:12px}.answer-grid .icon{left:5px}.heat-key,.calendar-week time{font-size:12px}}

/* Make every quantitative mark and input visible at normal size */
.chapter-table .chapter-column{width:34%}
.chapter-table .quantity-column{width:35%}
.chapter-table .accuracy-column{width:14%}
.chapter-table .action-column{width:17%}
.chapter-progress-stack,.chapter-table .progress-heading>span{width:194px;max-width:100%}
.chapter-progress-stack .track{flex:1;width:auto;max-width:none}
.rhythm-content{grid-template-columns:281px 126px;gap:20px}
.study-calendar{width:281px}
.calendar-labels,.calendar-week{grid-template-columns:43px repeat(7,28px)}
.study-insights .calendar-week .heat-cell{width:28px;height:28px}
.rhythm-side{height:127px;padding-left:18px}
.heat-key{width:281px;gap:16px}
.heat-key i{width:14px;height:14px;border-radius:2px}
.heat-key span:first-child i{border-color:#b2c2b8}
.option:not(.selected) .choice-indicator{border:2px solid #7b9182;background:transparent}
.overview-heading{margin-bottom:20px}
.overview-summary{padding-bottom:20px;margin-bottom:22px}
.study-insights{gap:16px}
.study-insights .chart{margin-top:8px}
@media(max-width:1180px){.chapter-progress-stack,.chapter-table .progress-heading>span{width:166px}.chapter-progress-stack{gap:8px}.rhythm-content{grid-template-columns:281px minmax(90px,1fr);gap:12px}.rhythm-side{padding-left:12px}}
@media(max-width:960px){.rhythm-content{grid-template-columns:281px;gap:12px}.rhythm-side{height:auto;padding:12px 0 0}}
@media(max-width:760px){.chapter-progress-stack,.chapter-table .progress-heading>span{width:100%;max-width:94px}.chapter-progress-stack .track{width:100%;max-width:none}.rhythm-content{grid-template-columns:281px minmax(90px,1fr);gap:12px}.rhythm-side{height:127px;padding:0 0 0 12px}.heat-key{width:281px;gap:13px}.study-insights{gap:25px}}
@media(max-width:440px){.rhythm-content{grid-template-columns:281px;gap:12px}.rhythm-side{height:auto;padding:0;flex-direction:row;align-items:baseline;gap:8px;border:0}.rhythm-side>span{margin:0}.rhythm-side p{margin:0 0 0 auto}}

/* Link the review decision to its data, then keep the curve in front */
.chapter-table tr.recommended{background:#f0f5ee}
.chapter-table tr.recommended .track span{background:#527a64}
.chapter-table tr.recommended .chapter-name{color:#294d36}
.chapter-progress-stack{gap:8px}
.chart .axis-value{font-family:Arial,sans-serif;font-size:11px;font-weight:400;fill:#627369}
.chart .axis-date{font-size:12px;font-weight:400;fill:#495c4e}
.chart .mean-caption{font-family:Arial,"Noto Sans CJK SC",sans-serif;font-size:11px;font-weight:400;fill:#4e6354}
.chart .gap-annotation text{font-size:11px;fill:#5d7062}
.chapter-table th{color:#304436}
.heat-key{color:#304436;font-weight:600}
.keyboard-note,.keyboard-note kbd{font-family:Arial,"Noto Sans CJK SC",sans-serif;font-size:14px;color:#354b3c;font-weight:400}
.answer-grid button span,.answer-grid button.current span,.answer-grid button.current.is-correct span,.answer-grid button.current.is-wrong span{top:12px;line-height:16px}
.answer-grid .icon{position:absolute;top:-3px;right:-2px;bottom:auto;left:auto;width:16px;height:16px;padding:1px;border-radius:50%;background:#fff;stroke-width:2.5}
.answer-grid button.current{box-shadow:inset 0 0 0 1px #274b3a}
.answer-grid button.is-correct .icon{color:#365e4c}
.answer-grid button.is-wrong .icon{color:#8e5b3a}
@media(max-width:760px){.chapter-progress-stack{gap:5px}.keyboard-note,.keyboard-note kbd{font-size:12px}.heat-key{font-size:12px}}

/* Study first; statistics as supporting evidence */
.overview-summary,.study-body{grid-template-columns:minmax(0,1.5fr) minmax(360px,1fr);gap:40px}
.study-chapters>.between h2{font-size:20px;font-weight:600;color:#26372b}
.study-insights .panel-title,.rhythm-panel .panel-title{font-size:16px;font-weight:600;color:#3b5042}
.chart .axis-value{font-size:12.5px;fill:#586c5d;font-weight:400}
.chart .axis-date{font-size:13px;fill:#475e4d;font-weight:400}
.chart .mean-caption{font-size:12.5px;fill:#4d6253}
.chart .gap-annotation text{font-size:12.5px;fill:#506956}
.chapter-progress-stack .chapter-quantity{grid-template-columns:26px 6px 28px;font-size:15px}
.quantity-slash{font-size:14px;color:#53665a}.quantity-total{font-size:15px;color:#405747}
.segmented button{font-size:13px;padding:5px 9px;position:relative;color:#63766a}
.segmented button.active{color:#294f3a;font-weight:600;background:#fff;box-shadow:none}
.segmented button.active:after{content:"";height:2px;position:absolute;bottom:1px;left:9px;right:9px;background:#365e4c}
.answer-grid{gap:4px;flex-wrap:nowrap}
.answer-grid button{width:44px;height:36px}
.quiz-navigation .answer-grid button>span:first-child{left:7px;right:auto;top:10px;width:16px;line-height:16px;text-align:center}
.answer-grid .icon{top:9px;right:3px;bottom:auto;left:auto;width:18px;height:18px;padding:0;border-radius:0;background:transparent;stroke-width:2.5}
.quiz-navigation .answer-grid .question-status{position:absolute;left:auto;right:4px;top:0;bottom:auto;width:16px;height:36px;display:grid;place-items:center}
.question-status i{width:6px;height:6px;border:1px solid #8aa090;border-radius:50%;background:transparent}
.question-status.is-active i{background:#fff;border-color:#fff}
.answer-grid button.current.is-wrong{box-shadow:inset 0 0 0 1px #82553b}
@media(max-width:1180px){.overview-summary,.study-body{grid-template-columns:minmax(0,1.4fr) minmax(310px,1fr);gap:30px}.chapter-progress-stack .chapter-quantity{font-size:13px;grid-template-columns:24px 5px 25px}.quantity-total,.quantity-slash{font-size:13px}}
@media(max-width:960px){.overview-summary,.study-body{grid-template-columns:minmax(0,1.3fr) minmax(285px,1fr);gap:25px}}
@media(max-width:760px){.overview-summary,.study-body{grid-template-columns:1fr;gap:26px}.study-chapters>.between h2{font-size:18px}.quiz-context .quiz-navigation{overflow-x:auto;padding-bottom:2px}.answer-grid button{width:36px}.quiz-navigation .answer-grid button>span:first-child{left:4px;top:10px;font-size:13px}.answer-grid .icon{right:1px;width:15px;height:15px;top:10px}.quiz-navigation .answer-grid .question-status{right:1px;width:14px}.chapter-progress-stack .chapter-quantity{font-size:12px;grid-template-columns:22px 4px 23px}.quantity-total,.quantity-slash{font-size:12px}}

/* Distinguish the recommendation without adding another module */
.num{font-family:Arial,"Noto Sans CJK SC",sans-serif;font-variant-numeric:tabular-nums}
.chapter-table .chapter-name{font-weight:500}
.chapter-table .quantity-done{font-weight:400}
.chapter-table tr.recommended .chapter-name,.chapter-table tr.recommended .quantity-done{font-weight:600}
.chart .axis-value{font-size:12.5px;font-weight:500;fill:#4a5d4f}
.chart .axis-date{font-size:13px;font-weight:400;fill:#475e4d}
.daily-mean{font-size:13px;color:#405a48}
.chart-readout .daily-mean strong{font-size:14px;color:#405a48;font-weight:500}
.heat-key{font-size:14px;color:#2f4435;font-weight:600}
.keyboard-note,.keyboard-note kbd{font-size:14px;color:#304635}
.quiz-navigation .answer-grid button>span:first-child{left:14px;right:auto;top:10px;width:16px;line-height:16px}
.answer-grid .icon{top:1px;right:1px;width:16px;height:16px;stroke-width:2.6}
.answer-grid button.current .icon{color:#fff}
.answer-grid button:not(.current):not(.is-correct):not(.is-wrong){border:1px solid #dce5dd;background:#fbfcf9}
@media(max-width:760px){.quiz-navigation .answer-grid button>span:first-child{left:10px}.answer-grid .icon{top:1px;right:0;width:14px;height:14px}.heat-key,.keyboard-note,.keyboard-note kbd{font-size:12px}}

/* Make the next study action explicit; group the quantitative evidence */
.task-title-line h2{font-size:28px;font-weight:600;letter-spacing:-.5px;line-height:1.3}
.task-explainer{gap:8px;color:#435949;flex-wrap:wrap}
.chapter-table .progress-heading>span{text-align:right}
.chapter-progress-stack,.chapter-table .progress-heading>span{width:168px;max-width:100%}
.chapter-progress-stack{display:grid;gap:5px}
.chapter-progress-stack .chapter-quantity{width:100%;justify-content:end}
.chapter-progress-stack .track{width:100%;max-width:none;height:4px;flex:none}
.heat-key{font-size:14px;font-weight:400;color:#354c3e;gap:13px}
.heat-key span:first-child i,.heat-cell.is-empty{border:1px solid #8ca18d}
.chart .axis-value{fill:#455f4c;font-weight:400}
.chart .axis-date{fill:#405646;font-weight:500}
.keyboard-note,.keyboard-note kbd{color:#304533;font-weight:500}
.footer-note{font-size:12px;color:#526657;font-weight:400;opacity:1}
.answer-grid button:not(.current):not(.is-correct):not(.is-wrong){border:0;background:transparent}
@media(max-width:1180px){.task-title-line h2{font-size:25px}.chapter-progress-stack,.chapter-table .progress-heading>span{width:142px}.chapter-progress-stack .chapter-quantity{width:100%}}
@media(max-width:760px){.task-title-line{flex-direction:column;align-items:flex-start;gap:13px}.task-title-line h2{font-size:24px}.chapter-progress-stack,.chapter-table .progress-heading>span{width:100%;max-width:94px}.chapter-progress-stack .chapter-quantity{width:100%}.heat-key{font-size:12px;gap:10px}.keyboard-note,.keyboard-note kbd{font-size:12px}}
.chapter-progress-stack{grid-template-columns:minmax(0,1fr);justify-content:stretch;align-items:stretch}
.task-priority .task-explainer>span{color:#435949}
.task-priority .task-explainer>span:nth-of-type(1){color:#7b9081}