:root{color-scheme:light;--paper:#f5f0e6;--card:#faf7f0;--ink:#171512;--muted:#67615a;--rule:#cfc6b8;--oxblood:#812015;--deep:#64150d;--olive:#445342;--brass:#8a6425;--cloth:#254f47;--serif:"Iowan Old Style", Baskerville, "Palatino Linotype", Georgia, serif;--sans:"Avenir Next", "Helvetica Neue", Arial, sans-serif;--page:1280px;--space:clamp(22px, 4vw, 64px)}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:100px}body{background:var(--paper);color:var(--ink);font-family:var(--sans);margin:0;font-size:17px;line-height:1.65}a{color:var(--oxblood);text-underline-offset:4px}a:hover{color:var(--deep)}button,input,select,textarea{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.6}button,input,select{min-height:44px}input,select,textarea{max-width:100%;color:var(--ink);background:var(--card);border:1px solid #8e8374;border-radius:3px;padding:10px 12px}input[type=checkbox]{width:19px;height:19px;min-height:19px;accent-color:var(--oxblood);flex-shrink:0}input[type=range]{width:100%;accent-color:var(--oxblood);border:0;min-height:28px;padding:0}textarea{resize:vertical;width:100%;display:block}label{gap:7px;font-size:14px;font-weight:600;display:grid}button{color:var(--oxblood);border:1px solid var(--oxblood);background:0 0;border-radius:3px;padding:8px 15px;line-height:1.3}button:hover{background:#eee1d4}button svg,a svg{stroke-width:1.7px;flex-shrink:0;width:18px;height:18px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--oxblood);outline-offset:4px}.scene-stage:focus-within{outline:3px solid var(--card)}[hidden]{display:none!important}h1,h2,h3,h4{font-family:var(--serif);letter-spacing:-.025em;margin:0 0 20px;font-weight:500;line-height:1.08}h1{font-size:clamp(44px,6.5vw,88px)}h2{font-size:clamp(32px,4vw,52px)}h3{font-size:27px}h4{font-size:23px}p{margin:0 0 20px}ul,ol{padding-left:24px}li{margin-bottom:8px}svg{max-width:100%}figure{margin:0}figcaption{color:var(--muted);padding:10px 0;font-size:13px;line-height:1.5}.small{color:var(--muted);font-size:13px;line-height:1.6}.eyebrow{text-transform:uppercase;letter-spacing:.16em;color:var(--oxblood);margin-bottom:16px;font-size:11px;font-weight:700;display:block}.page-wrap{max-width:var(--page);padding-inline:var(--space);margin:auto}.narrow{max-width:850px}.section{border-top:1px solid var(--rule);padding-block:65px}.section-heading{justify-content:space-between;align-items:center;gap:20px;margin-bottom:28px;display:flex}.section-heading h2,.section-heading h3{margin-bottom:0}.text-link{align-items:center;gap:12px;font-size:14px;font-weight:600;display:inline-flex}.button{min-height:48px;color:var(--card);background:var(--oxblood);border:1px solid var(--oxblood);border-radius:3px;justify-content:center;align-items:center;gap:15px;padding:12px 21px;font-size:14px;font-weight:600;line-height:1.3;text-decoration:none;display:inline-flex}.button:hover{background:var(--deep);color:var(--card)}.button.secondary{color:var(--oxblood);background:0 0}.button.secondary:hover{background:#eee1d4}.actions{flex-wrap:wrap;align-items:center;gap:14px;display:flex}.badge{text-transform:uppercase;letter-spacing:.09em;color:var(--olive);white-space:normal;border:1px solid #b2a38f;border-radius:2px;padding:5px 8px;font-size:10px;line-height:1.4;display:inline-block}.badge.candidate{color:var(--oxblood);background:#f4e6df}.check{align-items:center;gap:9px;font-size:13px;font-weight:500;display:flex}.skip-link{z-index:100;background:var(--card);padding:12px;position:fixed;top:-100px;left:12px}.skip-link:focus{top:12px}.site-header{border-bottom:1px solid var(--rule);background:var(--paper);z-index:30;position:sticky;top:0}.header-inner{max-width:var(--page);padding:19px var(--space);justify-content:space-between;align-items:center;gap:32px;margin:auto;display:flex}.wordmark{font-family:var(--serif);letter-spacing:-1.5px;color:var(--ink);white-space:nowrap;font-size:30px;font-weight:600;line-height:1;text-decoration:none}.wordmark span{color:var(--oxblood);font-style:italic;font-weight:400}.wordmark .wordmark-dot{font-style:normal}.desktop-nav{gap:28px;font-size:13px;display:flex}.desktop-nav a{color:var(--ink);text-decoration:none}.desktop-nav a[aria-current]{color:var(--oxblood);border-bottom:1px solid}.header-actions{align-items:center;gap:20px;display:flex}.account-link{white-space:nowrap;font-size:13px}.account-forms{grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:32px;display:grid}.account-page{max-width:1100px}.account-privacy{margin-top:32px}.account-gate{margin-block:20px}@media (width<=760px){.account-forms{grid-template-columns:1fr;gap:24px}}.icon-button{color:var(--ink);background:0 0;border:0;align-items:center;gap:8px;padding:0;font-size:13px;display:flex}.table-link{align-items:center;gap:8px;font-size:12px;font-weight:600;text-decoration:none;display:flex}.mobile-nav{display:none}.hero{grid-template-columns:1fr 1fr;align-items:center;gap:60px;padding-block:65px;display:grid}.hero h1{max-width:620px;margin-bottom:26px;font-size:clamp(48px,5.7vw,78px)}.hero h1 em{color:var(--oxblood);font-weight:400}.hero .lead{max-width:440px;margin-bottom:30px;font-size:18px;line-height:1.75}.hero-art{padding-bottom:26px;position:relative}.hero-art img{object-position:right center;aspect-ratio:1.06;object-fit:cover;border-radius:140px 3px 3px;width:100%;height:auto;display:block}.hero-art figcaption{text-transform:uppercase;letter-spacing:.14em;font-size:9px;position:absolute;bottom:0;left:0}.hero-note{color:var(--muted);align-items:center;gap:10px;margin-top:24px;font-size:11px;display:flex}.hero-note:before{content:"";background:var(--oxblood);width:28px;height:1px}.quick-strip{border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);grid-template-columns:repeat(4,1fr);margin-bottom:64px;display:grid}.quick-strip a{color:var(--ink);border-right:1px solid var(--rule);justify-content:space-between;align-items:center;gap:15px;padding:23px 24px;text-decoration:none;display:flex}.quick-strip a:first-child{padding-left:0}.quick-strip a:last-child{border-right:0}.quick-strip strong{font-family:var(--serif);font-size:25px;font-weight:500;display:block}.quick-strip small{color:var(--muted);font-size:11px}.quick-strip a:hover strong{color:var(--oxblood)}.chapter-grid{grid-template-columns:repeat(3,1fr);gap:0 30px;display:grid}.chapter-card{border-top:1px solid var(--rule);color:var(--ink);gap:20px;min-width:0;padding:29px 0;text-decoration:none;display:flex;position:relative}.chapter-card h3{letter-spacing:-.04em;margin-bottom:10px;font-size:27px}.chapter-card .chapter-number{font-family:var(--serif);color:var(--oxblood);padding-top:3px;font-size:16px}.chapter-card svg{color:var(--oxblood);width:16px;position:absolute;top:35px;right:0}.chapter-card>div{padding-right:15px}.chapter-subtitle{color:var(--olive);margin-bottom:14px;font-size:12px;font-weight:600;line-height:1.5}.chapter-intro{color:var(--muted);font-size:14px;line-height:1.65}.chapter-card .small{text-transform:uppercase;letter-spacing:.1em;font-size:10px}.chapter-card:hover h3{text-underline-offset:5px;text-decoration:underline 1px}.feature-split{grid-template-columns:.8fr 1.2fr;align-items:start;gap:60px;display:grid}.feature-copy{padding-top:35px}.feature-copy h2{font-size:56px}.feature-copy p{max-width:400px}.editorial-band{background:var(--oxblood);color:var(--card);grid-template-columns:1fr 1fr;gap:70px;margin-block:50px 70px;padding:45px;display:grid}.editorial-band .eyebrow{color:#e9c9b9}.editorial-band h2{font-size:42px}.editorial-band a{color:var(--card)}.editorial-band p{color:#f5e2d5;max-width:430px;font-size:15px}.page-heading{max-width:900px;padding-block:52px 38px}.page-heading h1{margin-bottom:22px}.page-heading .lead{max-width:680px;color:var(--muted);font-size:19px}.breadcrumb{color:var(--muted);flex-wrap:wrap;gap:9px;margin-bottom:30px;font-size:11px;display:flex}.breadcrumb a{color:var(--muted)}.chapter-heading{grid-template-columns:auto 1fr;align-items:start;gap:30px;display:grid}.chapter-heading .big-number{font-family:var(--serif);color:var(--oxblood);opacity:.85;font-size:100px;line-height:1}.lesson-list{border-top:1px solid var(--rule);margin-bottom:60px}.lesson-row{border-bottom:1px solid var(--rule);color:var(--ink);grid-template-columns:40px 1fr auto;align-items:center;gap:22px;padding:27px 0;text-decoration:none;display:grid}.lesson-row h2{margin-bottom:6px;font-size:30px}.lesson-row .row-number{font-family:var(--serif);color:var(--oxblood)}.lesson-row p{color:var(--muted);margin:0;font-size:13px}.lesson-row svg{color:var(--oxblood)}.lesson-meta{flex-wrap:wrap;align-items:center;gap:12px;margin:22px 0 30px;display:flex}.lesson-grid{grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);grid-template-areas:"quick visual""copy visual";align-items:start;gap:30px 48px;margin-bottom:70px;display:grid}.quick-answer{border-top:3px solid var(--oxblood);grid-area:quick;padding-top:25px}.quick-answer>p{font-family:var(--serif);letter-spacing:-.015em;font-size:26px;line-height:1.5}.lesson-visual{grid-area:visual;min-width:0;position:static}.lesson-copy{grid-area:copy;min-width:0}.lesson-copy h2{margin-top:35px;font-size:35px}.lesson-copy p{font-size:16px;line-height:1.8}.drill-card{background:#e8e9dc;margin-block:30px;padding:28px}.drill-card h3{margin-top:0}.drill-card p,.drill-card li{font-size:14px}.drill-card dt{letter-spacing:.12em;text-transform:uppercase;color:var(--olive);margin-top:20px;font-size:10px;font-weight:700}.drill-card dd{margin:6px 0 0;font-size:14px}.mistake{border-left:2px solid var(--oxblood);margin-block:30px;padding-left:22px}.mistake h3{font-size:22px}.mistake p{font-size:14px}.source-drawer{border-block:1px solid var(--rule);margin-block:30px;padding:18px 0}.source-drawer summary{cursor:pointer;font-size:14px;font-weight:600}.source-drawer summary span{float:right;color:var(--muted);font-size:11px;font-weight:400}.source-drawer li{font-size:13px}.source-drawer .small{padding-top:15px}.note-box{border:1px solid var(--rule);background:var(--card);margin-block:30px;padding:25px}.note-box h3{font-size:26px}.note-box .section-heading{margin-bottom:20px}.note-box form button{margin-top:16px}.note-box [role=status]{margin-top:12px;font-size:13px}.note-box .eyebrow{font-size:9px}.shot-player{border:1px solid var(--rule);background:var(--card);border-radius:3px;min-width:0;padding:23px}.scene-heading{justify-content:space-between;align-items:start;gap:20px;margin-bottom:20px;display:flex}.scene-heading h3{margin:0;font-size:28px}.scene-heading .eyebrow{margin-bottom:9px;font-size:9px}.scene-heading .badge{max-width:105px;font-size:9px}.segmented{gap:0;margin-bottom:18px;display:flex}.segmented button{border-radius:0;flex:1;min-height:39px;padding:8px;font-size:12px}.segmented button+button{border-left:0}.segmented button[aria-pressed=true]{background:var(--oxblood);color:var(--card)}.scene-stage{background:var(--cloth);border-radius:4px;overflow:hidden}.scene-stage svg{width:100%;height:auto;display:block}.svg-label{font-family:var(--sans);fill:#f5f0e6;font-size:15px}.scene-stage svg text{pointer-events:none}.scene-caption{min-height:36px;color:var(--olive);margin-bottom:15px;padding-top:16px;font-size:12px;line-height:1.5}.scene-controls{flex-wrap:wrap;gap:7px;display:flex}.scene-controls button{align-items:center;gap:5px;min-height:38px;padding:8px 10px;font-size:11px;display:inline-flex}.scene-controls button:first-child{background:var(--oxblood);color:var(--card)}.scene-controls button svg{width:13px;height:13px}.scene-settings{grid-template-columns:1fr 100px;gap:10px 18px;margin-top:15px;display:grid}.scene-settings label{font-size:10px}.scene-settings select,.scene-settings button{min-height:32px;padding:5px;font-size:11px}.scene-limit{margin:16px 0 0;font-size:10px}.spin-inset{align-items:center;gap:14px;margin-bottom:20px;display:flex}.spin-inset p{margin:0;font-size:10px;line-height:1.5}.tip-ball{background:var(--paper);border:1px solid var(--muted);border-radius:50%;flex-shrink:0;width:44px;height:44px;display:block;position:relative}.tip-ball>span{background:var(--oxblood);border-radius:50%;width:5px;height:5px;position:absolute;top:55%;left:46%}.note{border-top:1px solid var(--rule);margin-top:20px;padding:15px 0 0;font-size:12px}.note p{margin:9px 0;font-size:11px}.note label{font-size:11px}.note button{margin-top:8px;font-size:11px}.teaching-diagram svg{width:100%;height:auto;display:block}.teaching-diagram{margin-bottom:30px}.lesson-pagination{border-top:1px solid var(--rule);justify-content:space-between;gap:30px;padding-block:30px;font-size:14px;display:flex}.rule-banner{border-left:3px solid var(--oxblood);background:#eee6d8;margin-block:20px 35px;padding:20px 25px;font-size:14px}.rule-banner p{margin:8px 0 0;font-size:13px}.quick-grid{grid-template-columns:repeat(2,1fr);gap:20px;display:grid}.quick-card{border:1px solid var(--rule);background:var(--card);padding:28px}.quick-card h2{font-size:35px}.quick-card p{font-size:14px}.bridge-selector{border:1px solid var(--rule);background:var(--card);margin-block:30px;padding:30px}.bridge-selector select{width:100%}.bridge-result{border-top:1px solid var(--rule);margin-top:25px;padding-top:20px}.bridge-result h3{font-size:26px}.utility-row{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;margin-bottom:30px;display:flex}.utility-row p{margin:0}.checklist{counter-reset:checks;padding:0;list-style:none}.checklist li{counter-increment:checks;border-top:1px solid var(--rule);padding:25px 0}.checklist label{grid-template-columns:22px 1fr;gap:16px;display:grid}.checklist strong{font-family:var(--serif);margin-bottom:8px;font-size:27px;font-weight:500;display:block}.checklist span{font-size:14px;font-weight:400}.checklist input:checked+div{opacity:.65}.form-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.full{grid-column:1/-1}.notebook-layout{grid-template-columns:.9fr 1.1fr;align-items:start;gap:50px;margin-block:20px 70px;display:grid}.notebook-form{border:1px solid var(--rule);background:var(--card);padding:28px}.notebook-form h2{font-size:32px}.notebook-form label{font-size:12px}.notebook-form .button{margin-top:25px}.notebook-form input,.notebook-form select,.notebook-form textarea{width:100%}.notebook-tools{flex-wrap:wrap;gap:10px;margin-bottom:20px;display:flex}.notebook-tools button,.notebook-tools label{font-size:12px}.notebook-tools input[type=file]{max-width:240px;min-height:0;padding:7px;font-size:11px}.notebook-record{border-top:1px solid var(--rule);padding:22px 0}.record-heading{justify-content:space-between;align-items:center;gap:20px;display:flex}.record-heading h3{margin:0;font-size:24px}.record-heading button{border:0;padding:5px;font-size:10px}.notebook-record p{white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.notebook-record .small{margin:10px 0;font-size:11px}.notebook-record .coach-note{border-left:2px solid var(--rule);padding-left:15px}.empty-state{border-top:1px solid var(--rule);padding:35px 0}.status{color:var(--olive);min-height:24px;margin-top:15px;font-size:13px}.status.error{color:var(--oxblood)}.import-box{border-top:1px solid var(--rule);margin-top:25px;padding-top:20px}.import-box summary{cursor:pointer;font-size:14px}.import-box label{margin:12px 0}.import-box p{font-size:12px}.glossary-filter{width:100%;max-width:600px;margin-bottom:35px}.glossary-list{grid-template-columns:1fr 1fr;gap:0 55px;display:grid}.glossary-entry{border-top:1px solid var(--rule);padding:22px 0;scroll-margin-top:110px}.glossary-entry h2{margin-bottom:10px;font-size:29px}.glossary-entry p{margin-bottom:12px;font-size:14px}.glossary-entry .text-link{font-size:11px}.three-viewer{border:1px solid var(--rule);background:var(--card);margin-top:30px;padding:25px}.three-viewer h3{font-size:28px}.three-viewer p{font-size:12px}.three-canvas{background:#254f47;border-radius:3px;height:280px;margin-block:16px;position:relative;overflow:hidden}.three-canvas canvas{touch-action:pan-y;width:100%;height:100%;display:block}.three-controls{flex-wrap:wrap;gap:7px;margin-top:12px;display:flex}.three-controls button{min-height:36px;padding:8px;font-size:10px}.three-controls button[aria-pressed=true]{background:var(--oxblood);color:var(--card)}.three-canvas [data-fallback]{color:#f5f0e6;padding:30px;font-size:14px}.three-canvas [data-fallback] strong{font-family:var(--serif);margin-bottom:14px;font-size:26px;display:block}.practice-grid{grid-template-columns:repeat(2,1fr);gap:30px;margin-bottom:60px;display:grid}.practice-grid .drill-card{flex-direction:column;margin:0;display:flex}.practice-grid .actions{margin-top:auto;padding-top:20px}.prose{max-width:760px;margin-bottom:70px}.prose h2{margin-top:40px;font-size:36px}.prose h3{margin-top:25px;font-size:26px}.prose p,.prose li{font-size:16px}.source-register{padding:0;list-style:none}.source-register li{border-top:1px solid var(--rule);padding:14px 0;font-size:13px}.site-footer{max-width:var(--page);padding:50px var(--space) 45px;border-top:1px solid var(--rule);grid-template-columns:1fr 1fr 1fr;gap:40px;margin:0 auto;display:grid}.site-footer .wordmark{font-size:28px}.footer-wordmark{align-items:baseline;display:inline-flex}.backroom-door{align-items:center;min-width:44px;min-height:44px;display:inline-flex}.backroom-door:hover,.backroom-door:focus-visible{color:var(--oxblood)}.backroom-preview{background:var(--ink);color:var(--card);font-size:12px}.backroom-preview>div{max-width:var(--page);padding:8px var(--space);flex-wrap:wrap;align-items:center;gap:4px 18px;margin:auto;display:flex}.backroom-preview a{min-height:36px;color:inherit;text-underline-offset:4px;align-items:center;display:inline-flex}.backroom-preview a:first-child{font-weight:700}.backroom-live-link{margin-left:auto}@media (width<=540px){.backroom-preview>div{gap:0 14px}.backroom-live-link{flex-basis:100%;margin-left:0}}.site-footer p{color:var(--muted);margin-top:15px;font-size:11px}.footer-links{grid-template-columns:1fr 1fr;align-content:start;gap:10px;display:grid}.footer-links a{color:var(--muted);font-size:11px;text-decoration:none}.footer-note{margin-top:0!important}dialog{border:1px solid var(--rule);background:var(--paper);color:var(--ink);border-radius:5px;width:min(680px,100% - 28px);max-height:85dvh;padding:30px}dialog::backdrop{background:#17151299}.dialog-heading{justify-content:space-between;align-items:center;margin-bottom:25px;display:flex}.dialog-heading h2{margin:0;font-size:40px}.dialog-heading button{border:0;padding:5px}.dialog-heading svg{width:24px;height:24px}dialog>input{width:100%;margin:12px 0}.search-results{padding:0;list-style:none}.search-results li{border-top:1px solid var(--rule);margin:0}.search-results a{color:var(--ink);padding:15px 0;text-decoration:none;display:grid}.search-results strong{font-family:var(--serif);font-size:23px;font-weight:500}.search-results span{color:var(--muted);font-size:12px}.search-results small{text-transform:uppercase;letter-spacing:.12em;color:var(--oxblood);font-size:9px}.noscript{background:var(--card);padding:20px;font-size:13px}.table-mode .lesson-copy>p,.table-mode .chapter-intro,.table-mode .hero-art{display:none}.table-mode .hero{grid-template-columns:1fr}.table-mode .scene-limit{display:block}.print-only{display:none}@media (width<=1050px){.desktop-nav{gap:16px}.table-link{display:none}.hero{gap:35px}.feature-split{gap:30px}.feature-copy h2{font-size:45px}.lesson-grid{grid-template-columns:1fr 1.15fr;gap:25px}.chapter-grid{gap:0 20px}.chapter-card{gap:12px}.chapter-card h3{font-size:24px}.notebook-layout{gap:25px}.header-inner{gap:20px}}@media (width<=760px){body{padding-bottom:64px;font-size:16px}.header-inner{padding-block:17px}.desktop-nav{display:none}.wordmark{font-size:28px}.desktop-label{display:none}.header-actions{gap:15px}.mobile-nav{bottom:0;background:var(--paper);border-top:1px solid var(--rule);z-index:40;padding:6px 10px max(7px, env(safe-area-inset-bottom));grid-template-columns:repeat(5,1fr);display:grid;position:fixed;inset-inline:0}.mobile-nav a{min-height:46px;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:2px;font-size:9px;text-decoration:none;display:flex}.mobile-nav a svg{width:19px;height:19px}.mobile-nav a[aria-current]{color:var(--oxblood)}.hero{grid-template-columns:1fr;gap:32px;padding-block:38px}.hero h1{max-width:550px;font-size:54px}.hero .lead{font-size:16px}.hero-art{padding-bottom:22px}.hero-art img{aspect-ratio:1.65;border-radius:70px 3px 3px}.hero-art figcaption{font-size:8px}.hero-note{font-size:10px}.hero .actions .button{font-size:12px}.quick-strip{grid-template-columns:repeat(2,1fr);margin-bottom:40px}.quick-strip a,.quick-strip a:first-child{padding:17px 12px}.quick-strip a:nth-child(2){border-right:0}.quick-strip a:nth-child(-n+2){border-bottom:1px solid var(--rule)}.quick-strip strong{font-size:26px}.quick-strip small{font-size:10px}.chapter-grid{grid-template-columns:1fr 1fr;gap:0 22px}.chapter-card{gap:12px}.chapter-card h3{padding-right:10px;font-size:25px}.chapter-number{font-size:13px!important}.chapter-subtitle{font-size:11px}.chapter-intro{font-size:12px}.chapter-card .small{font-size:9px}.chapter-card svg{width:13px;top:34px;right:0}.section{padding-block:42px}.section-heading{align-items:start;gap:16px}.section-heading .text-link{max-width:110px;font-size:11px}.feature-split{grid-template-columns:1fr;gap:25px}.feature-copy{padding-top:0}.feature-copy h2{font-size:43px}.feature-copy p{font-size:15px}.editorial-band{grid-template-columns:1fr;gap:25px;margin-block:30px 45px;padding:28px}.editorial-band h2{font-size:37px}.editorial-band p{font-size:14px}.page-heading{padding-block:35px 25px}.page-heading h1{font-size:48px}.page-heading .lead{font-size:16px}.chapter-heading{gap:18px}.chapter-heading .big-number{font-size:65px}.lesson-row{grid-template-columns:23px 1fr 18px;gap:15px;padding-block:23px}.lesson-row h2{font-size:28px}.lesson-grid{flex-direction:column;gap:25px;display:flex}.quick-answer{width:100%}.quick-answer>p{font-size:25px}.lesson-visual{width:100%;position:static}.lesson-copy{width:100%}.lesson-copy h2{font-size:33px}.lesson-copy p{font-size:16px}.shot-player{padding:18px}.scene-heading h3{font-size:26px}.scene-heading .badge{max-width:88px;font-size:8px}.scene-settings{grid-template-columns:minmax(0,1fr) 95px}.scene-controls button{min-height:44px;font-size:10px}.scene-caption{font-size:11px}.scene-limit{font-size:10px}.quick-grid{grid-template-columns:1fr}.quick-card{padding:24px}.notebook-layout{grid-template-columns:1fr;gap:35px}.notebook-form{padding:24px}.form-grid{gap:16px}.form-grid label{font-size:11px}.glossary-list,.practice-grid{grid-template-columns:1fr}.site-footer{grid-template-columns:1fr 1fr;gap:25px;padding-top:35px;padding-bottom:35px}.footer-note{grid-column:1/-1}.footer-links{grid-template-columns:1fr}.site-footer .wordmark{font-size:26px}.breadcrumb{margin-bottom:23px}.badge{font-size:9px}.lesson-meta button{font-size:11px}.rule-banner{padding:17px}.prose h2{font-size:33px}.three-canvas{height:240px}.source-drawer summary span{font-size:10px}.lesson-pagination{font-size:12px}.drill-card{padding:25px}.table-link{font-size:10px;display:flex}.table-link svg{width:14px}.hero h1 em{display:inline}.check{font-size:12px}}@media (width<=390px){.hero h1{font-size:48px}.chapter-grid{grid-template-columns:1fr}.chapter-card.compact{padding-block:22px}.chapter-card h3{font-size:28px}.chapter-card .chapter-intro{max-width:270px}.chapter-card>div{padding-right:25px}.header-inner{gap:10px}.header-actions{gap:12px}.table-link{display:none}.button{padding:12px 15px}.form-grid{grid-template-columns:1fr}.full{grid-column:auto}.scene-heading{gap:10px}.scene-heading h3{font-size:24px}.scene-heading .badge{max-width:74px}.quick-strip a{padding-inline:9px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}@media print{body{color:#000;background:#fff;padding:0;font-size:11pt}.site-header,.site-footer,.mobile-nav,.scene-controls,.scene-settings,.segmented,.three-viewer,.notebook-tools,.note-box,.actions,.no-print,dialog,.hero-art{display:none!important}.page-wrap{max-width:none;padding:0}.lesson-grid{display:block}.lesson-visual{max-width:600px;margin-block:20px;position:static}.shot-player{break-inside:avoid;border:0;padding:0}.scene-stage{-webkit-print-color-adjust:exact;print-color-adjust:exact}.lesson-copy h2{font-size:23pt}.lesson-copy p{font-size:11pt}.page-heading h1{font-size:32pt}.page-heading{padding-block:0 20px}.source-drawer,.source-drawer ul{display:block}.drill-card{break-inside:avoid;background:#fff;border:1px solid #aaa}.quick-grid,.chapter-grid,.practice-grid{display:block}.chapter-card,.quick-card{break-inside:avoid}.chapter-card svg{display:none}.notebook-layout{display:block}.notebook-form{display:none}.print-only{display:block}.small{color:#303030}.lesson-pagination{display:none}}.high-contrast .scene-stage>svg,.high-contrast .teaching-diagram>svg{filter:contrast(1.6)}.session-recovery{z-index:45;background:var(--card);border:2px solid var(--oxblood);margin:20px;padding:18px 25px;font-size:13px;position:sticky;bottom:72px;box-shadow:0 3px 20px #17151222}.session-recovery p{margin:0 0 10px}.session-recovery button{font-size:12px}.scene-stage .svg-label{font-size:28px}.teaching-diagram .svg-label{font-size:22px}.editorial-band a:focus-visible{outline-color:var(--card)}@media (width<=760px){.scene-stage .svg-label{font-size:32px}}[data-favorite][aria-pressed=true]{background:var(--oxblood);color:var(--card)}.scene-dialog{width:calc(100vw - 24px);max-width:1200px;max-height:calc(100dvh - 24px);padding:0}.scene-dialog .shot-player{border:0}.scene-dialog .scene-stage{max-width:900px;margin-inline:auto}.viewer-toolbar{z-index:2;background:var(--paper);border-bottom:1px solid var(--rule);justify-content:space-between;align-items:center;gap:20px;padding:14px 23px;font-size:12px;display:flex;position:sticky;top:0}.viewer-toolbar button{font-size:12px}@media (width<=760px){.segmented button,.three-controls button,.scene-settings select,.scene-settings button,.check{min-height:44px}}.tone-switch{border:1px solid var(--line,#bdb5a5);white-space:nowrap;border-radius:999px;padding:.45rem .75rem;font-size:.78rem}#tone-dialog{width:calc(100% - 2rem);max-width:580px;max-height:calc(100dvh - 2rem);overflow:auto}.tone-options{border:0;gap:.75rem;margin-block:1rem;padding:0;display:grid}.tone-option{cursor:pointer;border:1px solid #c8c0af;border-radius:.4rem;align-items:flex-start;gap:.75rem;padding:1rem;display:flex}.tone-option:has(input:checked){background:#f5ece2;border-color:#812015}.tone-option input{accent-color:#812015;width:auto;margin-top:.35rem}.tone-option strong,.tone-option small{display:block}.tone-option small{margin-top:.3rem;line-height:1.5}.family-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,320px),1fr));align-items:start;gap:1.5rem;display:grid}.family-grid form,.family-card{border:1px solid #c8c0af;border-radius:.4rem;margin-block:1rem;padding:1.25rem}.family-grid label{gap:.35rem;margin-block:.8rem;display:grid}.family-grid .check{align-items:center;gap:.6rem;display:flex}.family-grid .check input{width:auto}.family-invite-link{overflow-wrap:anywhere}@media (width<=600px){.header-inner{flex-wrap:wrap;gap:10px}.header-actions{gap:8px}.tone-switch{padding:.4rem;font-size:.7rem}}