:root{--paper:#f5f4ef;--white:#fffefa;--ink:#24382f;--muted:#68736a;--line:#d8ddd1;--green:#285345;--orange:#b94c30;--yellow:#ecd17f;--soft:#e6ebdf;--serif:Georgia,'Times New Roman',serif;--sans:-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif}
*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:15px;line-height:1.55}button,input,textarea,select{font:inherit}button,a{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}a{color:inherit;text-decoration:none}button:disabled{opacity:.5;cursor:not-allowed}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--orange);outline-offset:4px}button{border:0;background:transparent}h1,h2,h3,p{margin:0}h1,h2{font-family:var(--serif);font-weight:400;letter-spacing:-.045em;line-height:1.08}h1{font-size:clamp(42px,5.6vw,76px)}h2{font-size:36px}h3{font-size:19px;letter-spacing:-.025em;line-height:1.3}p{max-width:68ch}small{font-size:12px}svg{display:block}input,textarea,select{background:var(--white);color:var(--ink);border:1px solid #abb6a5;border-radius:7px;width:100%;padding:11px 13px}textarea{resize:vertical;min-height:100px;line-height:1.6}label{display:block;font-size:13px;font-weight:650}label span{display:block;margin-bottom:6px}fieldset{border:0;padding:0;margin:0}legend{font-weight:650;font-size:17px;margin-bottom:18px}.skip{position:fixed;left:16px;top:-70px;background:var(--ink);color:white;padding:12px;z-index:100}.skip:focus{top:15px}
.sidebar{width:225px;position:fixed;inset:0 auto 0 0;background:#e9ede3;border-right:1px solid var(--line);padding:32px 23px;display:flex;flex-direction:column;z-index:10}.brand{font-family:var(--serif);font-size:34px;letter-spacing:-1.7px;display:flex;align-items:center;gap:10px}.brand svg{width:29px;height:29px}.brand-caption{font-size:10px;text-transform:uppercase;letter-spacing:2px;margin:13px 0 48px;color:var(--muted)}.nav-list{display:grid;gap:6px}.nav-link{display:flex;gap:12px;align-items:center;padding:12px 13px;border-radius:7px;font-size:14px;color:#59675d}.nav-link svg{width:19px;height:19px}.nav-link:hover{background:#dfe6d7}.nav-link.active{background:var(--green);color:#fffefa}.nav-link .badge{margin-left:auto;font-size:10px;border:1px solid currentColor;padding:0 5px;border-radius:10px}.sidebar-bottom{margin-top:auto;border-top:1px solid #cbd4c3;padding-top:23px}.sidebar-bottom p{font-size:12px;line-height:1.6;color:#64705f}.sidebar-bottom 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var(--line);margin:0 45px;padding:22px 0;display:flex;justify-content:space-between;font-size:11px;color:var(--muted);gap:15px}.eyebrow{font-size:10px;text-transform:uppercase;letter-spacing:2px;font-weight:650;display:flex;align-items:center;gap:8px;margin-bottom:20px}.eyebrow .dot{width:6px;height:6px;background:var(--orange);border-radius:50%}.muted{color:var(--muted)}.mono{font-family:ui-monospace,SFMono-Regular,monospace}.button{display:inline-flex;align-items:center;justify-content:center;gap:20px;min-height:43px;padding:11px 18px;border-radius:6px;border:1px solid #c6cebf;font-size:12px;font-weight:600;background:var(--white);line-height:1.4}.button.primary{background:var(--green);border-color:var(--green);color:white}.button.primary:hover{background:#173f32}.button:hover{border-color:var(--green)}.button.ghost{background:transparent}.button.small{min-height:34px;padding:7px 12px;font-size:11px}.arrow{font-size:19px;font-weight:400;line-height:1}.text-link{font-size:12px;text-decoration:underline;text-underline-offset:5px}.tag{display:inline-flex;gap:5px;align-items:center;border:1px solid #cbd2c4;border-radius:20px;padding:4px 9px;font-size:10px;color:var(--muted);white-space:nowrap}.tag.green{background:#e5eddf;color:#305342;border-color:#c9d8bf}.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.hero{display:grid;grid-template-columns:1.25fr .8fr;gap:45px;align-items:center;padding:4px 0 40px}.hero h1 em{font-weight:400;color:var(--orange)}.hero-copy{font-size:14px;line-height:1.8;color:#657063;max-width:420px;margin:23px 0 25px}.hero-diagram{position:relative;min-height:260px;display:flex;align-items:center;justify-content:center}.hero-diagram svg{width:100%;height:255px;overflow:visible}.diagram-label{font:12px var(--sans);fill:#687363}.diagram-large{font:italic 24px var(--serif);fill:#2f503e}.hero-mark{font-size:10px;position:absolute;bottom:4px;right:17px;color:#687363;letter-spacing:1px}.quick-actions{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid #cbd3c4;border-radius:8px;overflow:hidden;background:var(--white);margin-bottom:43px}.quick-action{padding:20px 23px;display:grid;grid-template-columns:auto 1fr auto;gap:13px;align-items:center}.quick-action+.quick-action{border-left:1px solid var(--line)}.quick-action:hover{background:#edf1e7}.quick-icon{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;border:1px solid #bcc9b2}.quick-icon svg{width:15px;height:15px}.quick-action strong{display:block;font-size:12px}.quick-action small{display:block;font-size:10px;color:var(--muted);margin-top:2px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:23px}.section-head h2{font-size:30px}.section-head 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#d3d9ca;background:#e4e9da}.step-row{display:flex;align-items:center;gap:8px;justify-content:center}.step-node{border:1px solid #bbc8ad;background:#f9faf2;border-radius:8px;padding:17px 13px;min-width:0;flex:1;text-align:center;transition:transform .16s,background .16s}.step-node.active{background:var(--green);border-color:var(--green);color:white;transform:translateY(-4px)}.step-node small{display:block;font-size:9px;opacity:.65;letter-spacing:1px;margin-bottom:8px}.step-node strong{font-size:12px;font-weight:600;display:block}.connector{color:#8d9e7f;font-size:19px}.model-caption{font-size:11px;color:#68755f;margin-top:22px;text-align:center;min-height:35px;line-height:1.65}.section-division{border-top:1px solid var(--line);padding-top:31px}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.lesson-card{background:var(--white);border:1px solid #d6ddce;border-radius:8px;padding:21px;position:relative;display:flex;flex-direction:column;min-height:228px;transition:transform .15s,border-color .15s}.lesson-card:hover{transform:translateY(-3px);border-color:#9eaf91}.card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px;gap:10px}.card-index{font:11px ui-monospace,monospace;color:#8a9583}.card-track{font-size:9px;text-transform:uppercase;letter-spacing:1px;display:flex;align-items:center;gap:6px}.card-track i{width:5px;height:5px;border-radius:50%}.lesson-card h3{font-family:var(--serif);font-size:22px;font-weight:400;letter-spacing:-.04em;line-height:1.18;margin-bottom:13px}.lesson-card p{font-size:11px;line-height:1.7;color:#6b7566;margin-bottom:20px}.card-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:auto;font-size:10px;color:var(--muted)}.card-bottom .arrow{color:#68815d}.save-button{width:29px;height:29px;display:grid;place-items:center;border-radius:50%}.save-button:hover{background:#edf1e7}.save-button.saved{color:var(--orange)}.save-button svg{width:14px;height:14px}.recall-banner{display:flex;align-items:center;justify-content:space-between;gap:25px;margin-top:35px;padding:26px 30px;background:#283e33;color:#f8f7ef;border-radius:8px}.recall-banner h3{font-family:var(--serif);font-size:25px;font-weight:400}.recall-banner p{font-size:12px;color:#bac8b7;margin-top:6px}.recall-banner .button{background:#e8d394;border-color:#e8d394;color:#263c30}.page-intro{margin-bottom:32px}.page-intro h1{font-size:52px;max-width:800px}.page-intro p{margin-top:18px;max-width:640px;color:var(--muted);font-size:14px;line-height:1.8}.filter-bar{display:flex;align-items:center;gap:15px;margin-bottom:24px;flex-wrap:wrap}.search{max-width:330px;position:relative}.search input{font-size:13px;padding-left:35px;background:transparent}.search svg{position:absolute;width:15px;height:15px;left:12px;top:14px;color:#8a9583}.filter-bar select{width:auto;min-width:175px;background:transparent;font-size:12px}.count{margin-left:auto;font-size:11px;color:var(--muted)}.empty{padding:45px;border:1px dashed #b8c4ad;border-radius:8px;text-align:center;color:var(--muted)}.lesson-header{max-width:870px;margin:25px 0 26px}.lesson-header h1{font-size:clamp(36px,4.5vw,60px);margin:18px 0}.lesson-header .lead{font-size:16px;color:#63705f;line-height:1.8;max-width:690px}.lesson-subnav{display:flex;gap:7px;border-bottom:1px solid var(--line);padding-bottom:12px;margin:25px 0 27px}.lesson-subnav button{font-size:12px;padding:9px 16px;border:1px solid transparent;border-radius:20px}.lesson-subnav button.active{background:var(--green);color:white}.lesson-subnav button:not(.active):hover{border-color:#bdc9b3}.lesson-content{max-width:1000px}.learn-layout{display:grid;grid-template-columns:1.45fr .85fr;gap:25px}.content-box{background:var(--white);border:1px solid #d4dccb;border-radius:9px;padding:26px}.content-box h2{font-size:28px;margin-bottom:18px}.visual-panel{background:#e6ebdd;border:1px solid #cdd7c2;border-radius:9px;padding:28px}.visual-panel h2{font-family:var(--sans);font-size:11px;letter-spacing:1.4px;text-transform:uppercase;font-weight:600;margin-bottom:28px}.visual-panel .step-row{margin:5px 0 20px}.visual-panel .step-node{min-height:100px}.visual-panel .model-caption{font-size:13px;min-height:85px;text-align:left;background:#f7f8f0;border-radius:7px;padding:18px;margin-top:23px}.visual-tip{font-size:10px;color:#68755d;margin-top:13px}.before-after{margin-top:25px}.before-after h3{font-size:11px;letter-spacing:1.4px;text-transform:uppercase;margin-bottom:16px}.example{border-left:2px solid #c9c5b8;padding:12px 17px;font-size:13px;color:#72766c;background:#f3f2ec;margin-bottom:11px}.example.good{border-color:#4e7851;background:#edf2e7;color:var(--ink)}.example 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18px;display:flex;gap:15px;text-align:left;border:1px solid #ced7c4;border-radius:8px;background:var(--white);font-size:14px;line-height:1.6}.option:hover{border-color:var(--green);background:#f0f4e9}.option-letter{width:24px;flex-shrink:0;height:24px;border:1px solid #b8c5ac;display:grid;place-items:center;border-radius:4px;font:11px ui-monospace,monospace}.option.selected{border-color:var(--orange);background:#f8eee8}.option.correct{border-color:var(--green);background:#e8f0e0}.feedback{border:1px solid #c4d0ba;padding:20px;border-radius:8px;margin-top:20px;background:#e9f0e0}.feedback.retry{background:#faf0df;border-color:#ddcfaf}.feedback h3{font-size:15px;margin-bottom:8px}.feedback p{font-size:13px;line-height:1.8}.feedback .actions{margin-top:15px}.apply-box{max-width:800px}.apply-box .exercise{font-family:var(--serif);font-size:24px;line-height:1.5;margin:10px 0 25px}.apply-box textarea{min-height:155px;margin-bottom:14px}.progress-callout{font-size:11px;color:var(--muted);margin-top:18px}.practice-head{display:grid;grid-template-columns:1fr auto;align-items:end;margin-bottom:28px}.practice-menu{display:flex;gap:8px;margin-bottom:28px;flex-wrap:wrap}.pill{border:1px solid #c6d0bc;border-radius:30px;font-size:12px;padding:9px 17px}.pill.active{background:var(--green);color:white;border-color:var(--green)}.practice-layout{display:grid;grid-template-columns:1.6fr .7fr;gap:28px}.scenario-context{font-family:var(--serif);font-size:27px;line-height:1.35;margin:18px 0}.scenario-counter{font-size:10px;color:var(--muted);letter-spacing:1px;text-transform:uppercase}.practice-aside{padding:25px;border-left:1px solid var(--line);font-size:12px;line-height:1.9}.practice-aside h3{font-family:var(--serif);font-size:24px;font-weight:400;margin-bottom:16px}.practice-aside ol{padding-left:18px;display:grid;gap:15px}.practice-aside li::marker{font-family:var(--serif);color:var(--orange)}.recall-card{min-height:290px;width:100%;background:#e7ecdf;border:1px solid #c6d2bc;border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:35px;position:relative}.recall-card .prompt{font-size:12px;color:var(--muted);margin-bottom:22px}.recall-card h2{max-width:520px;font-size:37px;line-height:1.18}.recall-card small{position:absolute;bottom:24px;color:#77836e;font-size:10px;letter-spacing:1px;text-transform:uppercase}.recall-controls{display:flex;justify-content:space-between;align-items:center;margin:18px 0;gap:12px}.recall-hint{max-width:600px;margin:22px auto;color:var(--muted);font-size:13px;text-align:center}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:30px 0}.stat{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:23px}.stat strong{font-family:var(--serif);font-size:37px;font-weight:400;display:block}.stat span{font-size:11px;color:var(--muted)}.tool-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.tool-card{padding:27px;border:1px solid #d2dbca;border-radius:9px;background:var(--white);display:block}.tool-card h2{font-size:29px;margin:19px 0 13px}.tool-card p{font-size:13px;color:var(--muted);margin-bottom:25px}.tool-layout{display:grid;grid-template-columns:1fr 1fr;gap:28px}.form-grid{display:grid;gap:18px}.form-hint{font-size:11px;color:var(--muted);margin-top:15px}.output{background:#e6ebde;border:1px solid #cbd5bf;border-radius:9px;padding:25px;position:sticky;top:25px;align-self:start}.output h3{font-size:10px;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:20px}.output pre{font:14px/1.9 var(--sans);white-space:pre-wrap;word-break:break-word;min-height:170px;margin:0 0 25px}.note-list{display:grid;gap:15px}.note{background:var(--white);border:1px solid var(--line);border-radius:8px;padding:23px}.note-head{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);margin-bottom:15px}.note h3{margin-bottom:12px;font-size:16px}.note p{white-space:pre-wrap;font-size:13px;line-height:1.9}.note button{font-size:10px;text-decoration:underline}.book-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.book{border:1px solid var(--line);background:var(--white);border-radius:8px;padding:27px}.book h2{font-size:29px;margin:10px 0}.book .authors{font-size:11px;color:var(--muted);margin-bottom:16px}.book p{font-size:13px;margin-bottom:18px}.book small{color:var(--muted);font-size:10px}.book ul{font-size:11px;line-height:1.9;padding-left:17px;margin:13px 0 0}.book a:hover{text-decoration:underline}.source-intro{display:grid;grid-template-columns:1fr 1fr;gap:25px;margin-bottom:30px}.source-intro p{font-size:13px;color:var(--muted);line-height:1.8}.source-intro h3{font-size:15px;margin-bottom:12px}.grid-visual{display:grid;grid-template-columns:1fr 1fr;gap:6px;max-width:400px;margin:auto}.quadrant{padding:16px 14px;text-align:left;border:1px solid #b8c7a9;background:#f2f5e9;border-radius:6px;font-size:11px;min-height:83px}.quadrant strong{display:block;margin-bottom:6px;font-size:12px}.quadrant.active{background:var(--green);color:white}.grid-axis{font-size:9px;text-align:center;color:#6a7a5e;margin-top:10px;letter-spacing:1px}.timeline-demo{display:flex;align-items:stretch;gap:5px;min-height:95px}.time-block{border:1px solid #b9c9aa;border-radius:6px;background:#f5f7ec;min-width:0;padding:12px 8px;font-size:10px;flex:1}.time-block strong{display:block;font:22px var(--serif);margin-bottom:8px}.time-block.active{background:var(--green);color:white}.duration{display:flex;gap:7px;margin-bottom:18px}.duration button{border:1px solid #b9c7ac;border-radius:20px;padding:5px 11px;font-size:10px}.duration button.active{background:#d1dbbf}.writing-demo{background:#f7f8ef;border:1px solid #c6d0b9;border-radius:7px;padding:20px;font-size:13px;line-height:1.85;min-height:145px}.writing-demo strong{font-weight:650}.view-switch{display:flex;gap:8px;margin-bottom:14px}.view-switch button{font-size:10px;border-bottom:1px solid transparent;padding:4px 7px}.view-switch button.active{color:var(--green);border-bottom-color:var(--green)}.step-detail-title{font-size:11px;font-weight:650;margin-bottom:8px;display:block}.track-poster{background:#e6ebde;padding:25px;border:1px solid #ccd5c2;border-radius:8px}.path-rows{display:grid;gap:12px}.path-row{display:flex;justify-content:space-between;align-items:center;gap:22px;padding:23px 25px;border:1px solid var(--line);border-radius:8px;background:var(--white)}.path-row .path-number{font:30px var(--serif);opacity:.5}.path-row h3{font-family:var(--serif);font-size:26px;font-weight:400}.path-row p{font-size:12px;color:var(--muted);margin-top:6px}.path-row .path-content{flex:1}.path-row .tiny{white-space:nowrap}.toast{position:fixed;bottom:25px;left:calc(50% + 110px);transform:translate(-50%,20px);padding:12px 19px;background:var(--ink);color:white;border-radius:7px;box-shadow:0 4px 20px #22332219;font-size:12px;z-index:50;opacity:0;transition:opacity .18s,transform .18s;pointer-events:none}.toast.show{opacity:1;transform:translate(-50%,0)}.notes-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}.saved-title{font-family:var(--serif);font-size:27px;margin:37px 0 22px}.completed-label{display:flex;align-items:center;gap:5px;color:#3a6a43;font-size:10px}.onboarding-note{margin:25px 0;font-size:12px;border-left:2px solid #c2ceb7;padding:5px 0 5px 18px;color:var(--muted);line-height:1.9}.review-status{margin-bottom:20px;padding:13px 18px;background:#e4ebd9;border:1px solid #c2d2b3;border-radius:6px;font-size:12px}.desktop-only{display:initial}
@media(min-width:1550px){main{padding:52px 65px 70px}.topbar{padding:0 65px}.hero{padding-top:12px;gap:70px}.hero-diagram svg{height:285px}}
@media(max-width:1150px){.sidebar{width:190px;padding:29px 16px}.workspace{margin-left:190px}main{padding:34px 28px 50px}.topbar{padding:0 28px}footer{margin:0 28px}.hero{gap:15px}.hero h1{font-size:58px}.hero-copy{font-size:13px}.quick-action{padding:16px 13px;gap:8px}.quick-icon{width:25px;height:25px}.quick-action small{font-size:9px}.feature-copy{padding:25px}.feature h2{font-size:30px}.track-tabs{gap:15px}.track-tab{font-size:11px}.lesson-card{padding:18px}.lesson-card h3{font-size:21px}.learn-layout{grid-template-columns:1fr}.step-node strong{font-size:12px}.toast{left:calc(50% + 90px)}}
@media(max-width:850px){.sidebar{width:73px;padding:27px 12px}.brand{justify-content:center}.brand-word,.brand-caption,.nav-text,.sidebar-bottom,.nav-link .badge{display:none}.nav-list{margin-top:45px;gap:15px}.nav-link{padding:13px;justify-content:center}.nav-link svg{width:20px;height:20px;flex-shrink:0}.workspace{margin-left:73px}.profile span:first-child{display:none}.hero{grid-template-columns:1fr 0.75fr}.hero h1{font-size:49px}.hero-diagram svg{height:210px}.hero-mark{font-size:8px;bottom:20px}.quick-action{grid-template-columns:1fr auto}.quick-icon{display:none}.quick-action strong{font-size:11px}.feature{grid-template-columns:1fr}.feature-copy{padding:26px}.feature h2{max-width:none}.feature-model{border-left:0;border-top:1px solid var(--line);padding:30px}.feature-model .step-node{padding:15px}.feature-model .model-caption{min-height:0;margin-top:20px}.lesson-grid{grid-template-columns:repeat(2,1fr)}.practice-layout,.tool-layout{grid-template-columns:1fr}.practice-aside{border-left:0;border-top:1px solid var(--line);padding:20px 0}.practice-aside ol{display:flex;gap:25px;margin-left:20px}.practice-aside li{flex:1}.book-grid{grid-template-columns:1fr}.source-intro{grid-template-columns:1fr}.toast{left:calc(50% + 36px)}.path-row .tiny{display:none}.output{position:static}}
@media(max-width:580px){body{font-size:14px}.sidebar{inset:auto 0 0;width:100%;height:65px;border:0;border-top:1px solid #cbd4c3;padding:5px 8px;background:#edf0e7}.sidebar>.brand,.sidebar>.brand-caption{display:none}.nav-list{margin:0;display:flex;justify-content:space-around;gap:0}.nav-link{flex-direction:column;gap:3px;border-radius:5px;padding:7px 10px;font-size:8px}.nav-text{display:block;font-size:8px}.nav-link svg{width:17px;height:17px}.workspace{margin-left:0;margin-bottom:65px}.topbar{height:59px;padding:0 21px}.breadcrumb{font-size:10px}.profile{font-size:10px}main{padding:28px 21px 45px}.hero{grid-template-columns:1fr;padding:4px 0 27px;gap:10px}.hero h1{font-size:58px;letter-spacing:-.06em}.hero-copy{margin:18px 0 22px;max-width:330px;font-size:13px}.hero-diagram{min-height:190px}.hero-diagram svg{height:190px;max-width:330px}.hero-mark{bottom:0;right:16px}.eyebrow{margin-bottom:16px;font-size:9px;letter-spacing:1.5px}.quick-actions{margin-bottom:32px;grid-template-columns:1fr}.quick-action+.quick-action{border-left:0;border-top:1px solid var(--line)}.quick-action{padding:16px 18px}.quick-action strong{font-size:12px}.quick-action small{font-size:10px}.section-head h2{font-size:28px}.track-tabs{gap:20px;margin-bottom:20px}.feature{margin-bottom:30px}.feature h2{font-size:31px}.feature-copy{padding:24px}.feature-model{padding:24px 17px}.step-node{padding:14px 9px}.step-node strong{font-size:11px}.lesson-grid{grid-template-columns:1fr}.lesson-card{min-height:0;padding:23px}.lesson-card h3{font-size:26px}.lesson-card p{font-size:12px}.card-top{margin-bottom:18px}.card-bottom{font-size:10px}.recall-banner{align-items:start;flex-direction:column;padding:25px}.recall-banner h3{font-size:25px}.page-intro h1{font-size:42px}.page-intro p{font-size:13px}.filter-bar{gap:10px}.search{max-width:none;flex:1;min-width:200px}.filter-bar select{width:100%}.count{margin-left:0}.lesson-header h1{font-size:40px}.lesson-header .lead{font-size:14px}.lesson-subnav{gap:0;justify-content:space-between}.lesson-subnav button{font-size:11px;padding:9px 13px}.content-box{padding:22px}.visual-panel{padding:22px 15px}.visual-panel .step-node{min-height:95px}.visual-panel .model-caption{font-size:12px}.lesson-bottom{align-items:start}.lesson-bottom .button{font-size:11px;padding:10px 13px}.memory-line{font-size:25px}.practice-head{display:block}.practice-head .tag{margin-top:16px}.scenario-context{font-size:25px}.practice-aside ol{display:block}.practice-aside li{margin-bottom:12px}.stats{gap:8px}.stat{padding:15px 11px}.stat strong{font-size:28px}.stat span{font-size:10px}.tool-grid{grid-template-columns:1fr}.tool-card{padding:24px}.source-intro{gap:18px}.book{padding:23px}.book h2{font-size:27px}.recall-card{padding:25px;min-height:300px}.recall-card h2{font-size:32px}.recall-controls{flex-wrap:wrap}.path-row{padding:20px 16px;gap:12px;align-items:start}.path-row h3{font-size:24px}.path-row .path-number{font-size:24px}.path-row .button{font-size:10px;padding:8px 10px;min-height:32px}.path-row p{font-size:11px}.option{font-size:12px;padding:15px;gap:11px}.toast{left:50%;bottom:83px;max-width:90vw;white-space:nowrap}.desktop-only{display:none}footer{font-size:9px;margin:0 21px;padding:20px 0 28px;align-items:start}footer span{max-width:160px}.page-intro{margin-bottom:26px}.section-head{align-items:center}.section-head .text-link{font-size:10px;white-space:nowrap}.step-row{gap:5px}.connector{font-size:14px}.model-caption{font-size:10px}.onboarding-note{font-size:11px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}

.apply-box h2{font-size:32px;line-height:1.25;margin:12px 0 20px}
.application-context{margin-bottom:27px}
.application-context p{font-size:15px;line-height:1.85}
.application-context blockquote{margin:20px 0 0;padding:15px 18px;border-left:3px solid var(--green);background:var(--soft);font-size:15px;line-height:1.75}
.application-response{display:block;margin-bottom:10px;font-size:16px;font-weight:600}
.apply-box textarea{width:100%;margin-bottom:0;font-size:15px;line-height:1.7}
.apply-box .form-hint{margin:8px 0 20px}
.application-compare{margin-top:25px;padding-top:20px;border-top:1px solid var(--line)}
.application-compare button:disabled{opacity:.5;cursor:default}
.application-example{padding:20px 0 0}
.application-example[hidden]{display:none}
.application-example h3{font-size:11px;letter-spacing:1px;text-transform:uppercase;margin-bottom:12px}
.application-example p{font-size:13px;line-height:1.8}
.application-example .application-sample{font-family:var(--serif);font-size:21px;line-height:1.6;margin-bottom:14px}
@media(max-width:600px){.apply-box h2{font-size:27px}.application-context p,.application-context blockquote{font-size:14px}.application-context blockquote{padding:13px 15px}.application-response{font-size:15px}.application-example .application-sample{font-size:20px}}

/* Additional concepts from the deeper chapter pass. */
.lesson-new{font-size:9px;line-height:1;padding:4px 6px;margin-left:7px;border:1px solid #cbd7bf;border-radius:4px;color:var(--green);background:#eef2e5;text-transform:none;letter-spacing:0}
.deeper-note{margin:26px 0 8px;border:1px solid var(--line);border-radius:8px;background:var(--white);padding:20px 24px;max-width:880px}
.deeper-note summary{cursor:pointer;font-size:15px;font-weight:600;color:var(--green)}
.deeper-note>p{font-size:14px;line-height:1.9;margin:18px 0}
.deeper-example{border-left:2px solid #b8c8a9;padding:3px 0 3px 16px}
.deeper-example strong{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
.deeper-example p{font-size:14px;line-height:1.8;margin-top:7px}
.kind-trust-lenses .connector{display:none}
.kind-trust-lenses .step-row{gap:10px}
.kind-trust-lenses .step-node small{display:none}
.kind-trust-lenses .step-node{border-top:4px solid #8c9d76;min-height:98px}
.kind-intervals .step-node:nth-of-type(2){background:#f0e5bf;border:1px dashed #b99c53}
.kind-intervals .step-node:nth-of-type(2).active{background:var(--green);border-color:var(--green)}
.help-choices{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.help-choice{border:1px solid #bac9ad;background:#f5f7ee;padding:20px 16px;border-radius:8px;text-align:left;min-height:88px}
.help-choice span{display:block;font:10px ui-monospace,monospace;opacity:.65;margin-bottom:10px}
.help-choice strong{font:23px var(--serif)}
.help-choice.active{background:var(--green);border-color:var(--green);color:white}
.handoff-picture{margin-bottom:24px;display:grid;gap:12px}
.handoff-picture>div{display:flex;gap:8px;align-items:center;justify-content:space-between;font-size:12px}
.handoff-picture span,.handoff-picture strong{padding:11px 9px;border:1px solid #c5cfb9;border-radius:5px;text-align:center;flex:1}
.handoff-picture b{font-weight:400}
.handoff-picture small{font-size:9px;color:var(--muted)}
.handoff-old{opacity:.48}
.handoff-new strong{color:white;background:var(--green);border-color:var(--green)}
.sample-summary{display:flex;gap:17px;align-items:center;margin-bottom:16px}
.sample-summary>strong{font:37px var(--serif);white-space:nowrap}
.sample-summary>span{font-size:11px;line-height:1.8;color:var(--muted)}
.sample-summary b{font-weight:500;color:var(--ink)}
.sample-grid{display:grid;grid-template-columns:repeat(30,minmax(0,1fr));gap:3px;margin:0 0 13px}
.sample-grid i,.sample-key i{background:#d0d8c7;border:1px solid #bcc7b1;aspect-ratio:1;border-radius:2px}
.sample-grid .satisfied,.sample-key .satisfied{background:var(--green);border-color:var(--green)}
.sample-grid .other,.sample-key .other{background:var(--orange);border-color:var(--orange)}
.sample-key{display:flex;gap:12px;flex-wrap:wrap;font-size:9px;margin:0 0 24px;color:var(--muted)}
.sample-key span{display:flex;gap:5px;align-items:center}
.sample-key i{display:inline-block;width:9px;height:9px}
@media(max-width:600px){.deeper-note{padding:18px}.deeper-note summary{font-size:14px}.help-choice{padding:16px 12px}.help-choice strong{font-size:21px}.handoff-picture>div{gap:4px;font-size:10px}.handoff-picture span,.handoff-picture strong{padding:10px 5px}.sample-grid{gap:2px}.sample-summary>strong{font-size:31px}.sample-key{gap:9px}}

/* Deliberate practice: one response, two distinct kinds of feedback. */
textarea:focus-visible,input:focus-visible{outline-color:var(--green,#326558)}
.ai-review{margin:26px 0 30px}.tutor-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}.tutor-actions button:disabled{cursor:wait}.tutor-actions button:disabled:not(:has(+button)){cursor:default}.tutor-review{border:1px solid var(--line,#c9d1c4);border-radius:14px;background:#fffefb;overflow:hidden;margin-top:24px}.review-meta{padding:14px 22px;background:#edf2eb;font-size:13px;display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap}.review-meta span{color:#526458}.tutor-part{padding:24px;border-bottom:1px solid #e1e5dc}.tutor-part h3{margin:8px 0 20px}.tutor-part p{line-height:1.65}.tutor-part blockquote{margin:20px 0;padding:12px 18px;border-left:3px solid #afc4b5;color:#475f53;background:#f4f6ef}.english-corrections{padding-left:20px}.english-corrections li{margin-bottom:18px}.english-corrections li p{margin:5px 0;color:#59665b;font-size:14px}.english-corrections del{color:#76665d}.next-try{padding:24px;background:#edf2eb}.next-try p{font-size:18px}.tutor-review details{padding:16px 24px}.tutor-part details{padding:12px 0}.tutor-review summary,.review-history summary{cursor:pointer;font-weight:600}.tutor-review>.tiny{padding:0 24px 16px}.preserve-lines{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.65}.tutor-error{padding:16px;border-left:3px solid #b74e31;background:#fff1e9}.review-loading{padding:16px;background:#edf2eb}.earlier-review .review-meta{background:#f5eddb}.finish-requirement{padding:16px 18px;border-radius:8px;background:#edf2eb;font-size:14px;margin:20px 0}.finish-requirement button{display:block;margin-top:8px}.tutor-access{font-size:14px}.review-history{margin-top:20px}.review-history>details{border-bottom:1px solid #ddd;padding:14px}.tutor-actions .button span{margin-left:10px}
@media(max-width:600px){.tutor-part{padding:18px}.review-meta{padding:14px 18px}.next-try{padding:18px}.tutor-actions .button{width:100%}.workspace{padding-bottom:env(safe-area-inset-bottom)}}
.correction-kind{display:block;text-transform:uppercase;letter-spacing:.08em;color:#68736a;font-size:10px;font-weight:600;margin-bottom:4px}
.sync-status{max-width:380px;font-size:11px!important;letter-spacing:0!important;text-transform:none!important;line-height:1.4}.sync-retry{font-size:20px;padding:6px;min-width:32px}.profile{gap:8px}@media(max-width:600px){.topbar .profile{display:flex;max-width:65%}.topbar .profile .sync-status{display:block;font-size:10px!important}.profile-dot{display:none!important}}
.save-indicator{font-size:12px;color:var(--green);margin-top:10px;line-height:1.5}