.lab-page{background:#f3f0e8;color:#211f1a}.lab-header{display:flex;justify-content:space-between;align-items:center;padding:24px 4vw;border-bottom:1px solid #cfc9bd;gap:24px}.lab-wordmark{font-size:26px;font-weight:850;font-style:italic;letter-spacing:-1px}.lab-wordmark span{display:block;font:9px var(--mono);letter-spacing:2px;margin-top:8px}.lab-header nav{display:flex;gap:24px;align-items:center;font-size:12px}.lab-page button{font:inherit;cursor:pointer}.lab-header button,.notebook-actions button,.import-label,#download-prompt{border:0;background:transparent;text-align:left;text-decoration:underline;text-underline-offset:4px}.lab-notice{padding:12px 4vw;background:#211f1a;color:#f3f0e8;font:10px/1.6 var(--mono)}.lab-shell{display:grid;grid-template-columns:280px minmax(0,1fr);max-width:1500px;margin:auto}.lab-sidebar{padding:32px 24px;border-right:1px solid #cfc9bd;position:sticky;top:0;align-self:start;max-height:100vh;overflow:auto}.lab-sidebar>label,.lab-eyebrow{font:10px/1.5 var(--mono);letter-spacing:1px}.lab-sidebar select{margin:12px 0;width:100%;padding:10px 6px;border:1px solid #b3ac9f;background:transparent;font-size:12px}.lab-progress{margin:14px 0 22px;font-size:12px}.lab-progress progress{width:100%;height:6px;display:block;margin-top:10px;accent-color:#4c28d6}#lesson-nav{display:grid;gap:4px}#lesson-nav button{display:flex;gap:12px;align-items:baseline;text-align:left;padding:12px 10px;border:0;background:transparent;font-size:13px;line-height:1.4}#lesson-nav button[aria-current="step"]{background:#4c28d6;color:white}#lesson-nav button span{font:10px var(--mono);min-width:18px}.notebook-actions{display:grid;gap:16px;margin-top:32px;font-size:11px}.import-label{cursor:pointer}#save-status{font:10px/1.6 var(--mono);margin-top:22px;color:#655e53}#lesson{padding:48px clamp(24px,4vw,64px) 64px;min-width:0;outline:none}.lesson-top{display:grid;grid-template-columns:minmax(0,1fr) 180px;gap:32px;border-bottom:1px solid #cfc9bd;padding-bottom:32px}.lesson-top img{width:180px;height:210px;object-fit:cover;transform:rotate(2deg)}.lesson-top h1{font-size:clamp(36px,4vw,58px);letter-spacing:-2px;line-height:1.05;margin:20px 0}.lesson-top p:last-child{font-size:16px;line-height:1.7;max-width:620px}.lesson-reading{display:grid;gap:24px;max-width:850px;margin:32px 0}.lesson-reading h2{font-size:21px;letter-spacing:-.5px;margin:0 0 10px}.lesson-reading p{font-size:15px;line-height:1.85;margin:0;max-width:72ch}.practice{background:#e9e3d7;padding:32px;margin-top:40px}.practice h2,.review h2{font-size:32px;letter-spacing:-1px;margin:8px 0 14px}.practice>p,.review>p{font-size:13px;line-height:1.7}.practice-fields{display:grid;gap:22px;margin:24px 0}.practice label,.observations{display:grid;gap:9px;font-size:13px;font-weight:600}.lab-page textarea,.lab-page input[type="search"],.vault-filters select{width:100%;font:13px/1.6 var(--sans);padding:12px;background:#fcfaf5;border:1px solid #a9a191;border-radius:0;resize:vertical;color:#211f1a}.worksheet{width:100%;min-height:220px;margin:12px 0;background:#211f1a!important;color:#f5f1e8!important;font:12px/1.7 var(--mono)!important}.worksheet-actions{display:flex;gap:14px;flex-wrap:wrap;align-items:center}.lab-primary{background:#4c28d6;color:#fff;padding:14px 20px;border:1px solid #211f1a;box-shadow:3px 3px 0 #211f1a;font-weight:650}.lab-primary:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}.review{margin-top:40px}.observations{margin:24px 0}.review fieldset{border:0;padding:0;margin:24px 0}.review legend{font-weight:650;margin-bottom:14px;font-size:16px}.review label.check,.quiz-choice{display:flex;align-items:flex-start;gap:12px;margin:12px 0;font-size:14px;line-height:1.6}.review input{width:17px;height:17px;flex-shrink:0;margin-top:3px;accent-color:#4c28d6}.quiz-feedback{padding:14px;background:#e9e3d7;font-size:13px;line-height:1.6}.finish-row{display:flex;align-items:center;gap:24px;flex-wrap:wrap;margin-top:24px}.finish-row p{font-size:12px;max-width:340px}.next-lesson{display:block;margin-top:30px;text-decoration:underline;background:none;border:0}.lab-footer{padding:26px 4vw;display:flex;justify-content:space-between;gap:20px;border-top:1px solid #cfc9bd;font-size:12px}#vault-dialog{width:min(1100px,94vw);max-height:90vh;padding:36px;background:#f3f0e8;border:1px solid #211f1a;overflow:auto}#vault-dialog::backdrop{background:#211f1ab8}#vault-dialog h2{font-size:40px;letter-spacing:-1px;margin:14px 0}#vault-dialog>p{max-width:720px;font-size:13px;line-height:1.7}.vault-close{position:absolute;right:20px;top:18px;border:0;background:transparent;padding:10px}.vault-filters{display:grid;grid-template-columns:2fr 1fr;gap:20px;margin:24px 0}.vault-filters label{display:grid;gap:8px;font-size:12px}.vault-layout{display:grid;grid-template-columns:260px minmax(0,1fr);gap:28px}#vault-list{max-height:460px;overflow:auto;display:grid;align-content:start;gap:4px}#vault-list button{border:0;background:#e9e3d7;padding:12px;text-align:left;font-size:12px;line-height:1.5}#vault-list button[aria-pressed=true]{background:#4c28d6;color:white}#vault-count,#vault-status,#copy-status{font-size:11px;line-height:1.6}.vault-editor label{display:block;margin:0 0 10px;font-weight:600}.vault-editor textarea{margin-bottom:16px}.lab-page :focus-visible{outline:3px solid #ff713d;outline-offset:4px}.lab-primary:hover:not(:disabled){transform:translate(-1px,-1px)}
@media(max-width:1000px){.lab-shell{grid-template-columns:230px minmax(0,1fr)}.lesson-top{grid-template-columns:1fr}.lesson-top img{display:none}.lab-sidebar{padding:24px 16px}.lab-header nav{gap:12px}.practice{padding:24px}}
@media(max-width:700px){.lab-header{padding:20px;align-items:flex-start;flex-direction:column;gap:20px}.lab-header nav{flex-wrap:wrap;font-size:11px}.lab-notice{padding:12px 20px;font-size:9px}.lab-shell{display:block}.lab-sidebar{position:static;max-height:none;border-right:0;border-bottom:1px solid #cfc9bd;padding:24px 20px}#lesson-nav{display:flex;overflow:auto;gap:8px;padding-bottom:6px}#lesson-nav button{flex:0 0 180px;background:#e9e3d7}.notebook-actions{display:flex;flex-wrap:wrap;gap:18px;margin-top:20px}#save-status{margin-bottom:0}#lesson{padding:32px 20px 48px}.lesson-top h1{font-size:42px}.practice{padding:22px 16px;margin-inline:-4px}.vault-layout{grid-template-columns:1fr}#vault-list{max-height:160px}.vault-filters{grid-template-columns:1fr;gap:12px}#vault-dialog{padding:28px 20px}.lab-footer{flex-direction:column}.lesson-reading p{font-size:14px}.finish-row{gap:12px}}
@media(prefers-reduced-motion:no-preference){.lab-primary{transition:transform .15s}.lesson-top{animation:lesson-enter .25s ease-out}@keyframes lesson-enter{from{opacity:.4;transform:translateY(8px)}to{opacity:1;transform:none}}}

.field-manuals{margin-top:24px;border-top:1px solid #cfc9bd;padding-top:18px;font-size:12px}.field-manuals summary{cursor:pointer}.field-manuals a{display:block;margin-top:12px;text-decoration:underline}.field-manuals p{font-size:11px;line-height:1.6}.lab-progress progress{appearance:auto}
.full-reading{margin:40px 0;padding:clamp(18px,3vw,36px);border:1px solid var(--ink,#24221d);background:#faf8f2}.reading-controls{display:grid;grid-template-columns:1fr 1.5fr;gap:16px;margin:24px 0}.reading-controls label{display:grid;gap:8px;font-size:14px;font-weight:600}.reading-controls label:last-child{grid-column:1/-1}.reading-controls select,.reading-controls input{width:100%;min-width:0;padding:12px;background:#fff;border:1px solid #999;font:inherit}.edition-note{font-size:13px!important;color:#625f58;border-left:2px solid #b3a9cf;padding-left:12px}#reading-body{max-width:72ch;margin:32px auto;scroll-margin-top:24px;overflow-wrap:anywhere}#reading-body h3{font-size:clamp(25px,3vw,38px);line-height:1.15}#reading-body p{font-size:17px;line-height:1.8;margin:0 0 22px;white-space:pre-line}#reading-results button{margin:4px;padding:10px;background:transparent;border:1px solid #a8a298;text-align:left}.reading-pagination{display:flex;align-items:center;justify-content:space-between;gap:12px}.reading-pagination button{padding:12px;border:1px solid #aaa;background:transparent;font:inherit}.reading-pagination button:disabled{opacity:.35}.reading-pagination span{white-space:nowrap;font-size:13px}@media(max-width:600px){.reading-controls{grid-template-columns:1fr}.reading-pagination button{font-size:12px;padding:8px}.full-reading{margin-inline:-4px}#reading-body p{font-size:16px}}
#reading-body h4{font-size:18px;line-height:1.5;margin:30px 0 12px;font-weight:700}
.nav-group{font:10px var(--mono);text-transform:uppercase;letter-spacing:1px;margin:22px 10px 8px;color:#6a6256}.lesson-jump{display:inline-block;font-size:13px;text-decoration:underline;margin:8px 0}.lesson-depth{max-width:850px;margin:40px 0}.lesson-depth>h2{font-size:30px}.lesson-depth>p{font-size:14px;line-height:1.7}.lesson-depth details{border-top:1px solid #cfc9bd}.lesson-depth details:last-of-type{border-bottom:1px solid #cfc9bd}.lesson-depth summary{padding:20px 8px;cursor:pointer;font-weight:650;line-height:1.5}.source-reading{padding:8px 16px 24px;max-width:72ch;overflow-wrap:anywhere}.source-reading p{font-size:16px;line-height:1.85;margin:0 0 20px}.source-reading h3{font-size:19px;line-height:1.5;margin:26px 0 12px}.source-note{color:#6a6256;font-size:12px!important}.source-note a{text-decoration:underline}.library-shell{max-width:1050px;padding:40px 24px;margin:auto}.library-shell>h1{font-size:clamp(32px,5vw,60px);letter-spacing:-2px}#practice{scroll-margin-top:24px}@media(max-width:700px){#lesson-nav{display:grid;grid-template-columns:1fr 1fr;max-height:270px;overflow:auto}#lesson-nav .nav-group{grid-column:1/-1;margin-top:12px}#lesson-nav button{font-size:12px;min-height:48px}.source-reading{padding-inline:4px}}
.lesson-top figure{margin:0}.lesson-top figcaption{font-size:10px;line-height:1.5;margin-top:12px;color:#6a6256}.lesson-depth{margin-top:24px}.lesson-depth>h2{font-size:clamp(24px,3vw,34px);letter-spacing:-1px;margin:12px 0}.lesson-depth>p{font-size:16px;line-height:1.8;max-width:72ch}.scene-brief{font-weight:600}.teaching-step{margin-top:48px!important}.term-list{margin:24px 0}.term-list details>div{padding:0 16px 20px;font-size:15px;line-height:1.8}.term-list blockquote{margin:8px 0;padding:14px 18px;background:#e8e2d6;border-left:3px solid #4c28d6}.phrase-label{font:10px var(--mono);letter-spacing:1px;margin-bottom:8px}.teaching-prompt{white-space:pre-wrap;overflow-wrap:anywhere;font:14px/1.9 var(--sans);padding:24px;background:#e8e2d6;max-width:100%;margin:24px 0}.prompt-annotations{display:grid;gap:24px;margin:32px 0}.prompt-annotations h3{font-size:16px;line-height:1.6;margin:0 0 8px}.prompt-annotations p{font-size:15px;line-height:1.8;margin:0}.lesson-depth>label{display:block;font-size:13px;font-weight:600;margin:20px 0 8px}#fix-choice{max-width:100%;width:100%;font:inherit;padding:14px;border:1px solid #aaa;background:#faf8f2}.fix-advice{padding:20px;background:#e8e2d6;border-left:3px solid #4c28d6;min-height:90px}.practice-brief{padding:24px;border:1px solid #c8bdad;margin:32px 0}.practice-brief h3{font-size:21px;margin:0 0 12px}.practice-brief p{font-size:15px;line-height:1.8;margin:0}.prompt-comparison{margin:32px 0;padding:24px;border:1px solid #c8bdad}.prompt-comparison h2{font-size:26px}.prompt-comparison p{font-size:15px;line-height:1.8}.comparison-pair{display:grid;grid-template-columns:1fr 1fr;gap:24px}.comparison-pair>div{background:#e8e2d6;padding:20px}.comparison-pair h3{font-size:15px}#teaching-copy-status{display:inline-block;margin:12px;font-size:12px}@media(max-width:700px){.comparison-pair{grid-template-columns:1fr}.lesson-top figure{display:none}.term-list summary{min-height:48px}.lesson-depth .lab-eyebrow{font-size:10px}}

/* Course audit: short action route and optional technical depth. */
.lesson-route{border-left:4px solid var(--purple,#5125d9);padding:18px 24px;margin:24px 0 32px;background:#ebe6dc}.lesson-route p{margin:0 0 12px}.lesson-route ol{padding-left:22px;margin:0}.lesson-route li{padding:5px 0;line-height:1.65}.tool-guide,.lighting-comparison{border:1px solid #b6b0a4;margin:24px 0}.tool-guide summary,.lighting-comparison summary{cursor:pointer;padding:18px;font-weight:700}.tool-guide>div,.lighting-comparison>div{padding:0 20px 20px;line-height:1.7}.lighting-comparison article+article{border-top:1px solid #b6b0a4;padding-top:16px;margin-top:20px}.lighting-comparison blockquote{margin:12px 0;padding:12px 16px;border-left:3px solid #5125d9;background:#ebe6dc}.tool-guide a{text-underline-offset:3px}.lesson-route strong{font-size:1.1rem}

#course-navigation>summary{cursor:pointer;font-size:13px;font-weight:650;padding:12px 0}#course-navigation:not([open]){margin-bottom:8px}#assistant-copy-status{display:inline-block;margin:12px;font-size:12px}@media(min-width:701px){#course-navigation>summary{margin-bottom:12px}}

/* One teaching system for both image and product lessons. */
.course-walkthrough{max-width:76ch;margin:32px 0}.walkthrough-intro{font-size:18px;line-height:1.8}.walkthrough-steps{list-style:none;padding:0;margin:32px 0}.walkthrough-steps>li{padding:28px 0;border-top:1px solid #c8bdad}.walkthrough-steps h2{font-size:clamp(23px,3vw,32px);line-height:1.2;letter-spacing:-.6px;margin:8px 0 16px}.walkthrough-steps p{line-height:1.8}.course-walkthrough details,.extra-reading{border:1px solid #c8bdad;margin:20px 0;background:#faf7ef}.course-walkthrough summary,.extra-reading>summary{padding:16px 20px;cursor:pointer;font-weight:650;line-height:1.5}.course-walkthrough details>div{padding:0 20px 20px}.course-walkthrough h3{font-size:16px;margin:16px 0 8px}.course-walkthrough blockquote{margin:0;padding:16px 20px;border-left:3px solid #5125d9;background:#ebe6dc;line-height:1.8}.walkthrough-advice{display:grid;grid-template-columns:1fr 1fr;gap:24px}.walkthrough-check{border-top:1px solid #c8bdad;padding-top:16px}.extra-reading .lesson-reading{padding:0 24px}.walkthrough-prompts .teaching-prompt{padding:16px;margin-top:0}.walkthrough-prompts [role=status]{display:inline-block;margin:12px;font-size:13px}.walkthrough-prompts>h2{font-size:28px}.course-walkthrough details[open]>summary{border-bottom:1px solid #ddd4c5;margin-bottom:16px}.practice-fields textarea{min-height:110px}.lab-header{position:sticky;top:0;z-index:20;background:#f4f0e7}.lab-header nav{max-height:84px;overflow:auto}@media(max-width:700px){.walkthrough-advice{grid-template-columns:1fr;gap:0}.course-walkthrough details>div{padding:0 14px 16px}.course-walkthrough summary{padding:14px}.walkthrough-steps>li{padding:22px 0}.walkthrough-intro{font-size:16px}.lab-header nav{max-height:48px}.course-walkthrough .teaching-prompt{font-size:13px}.practice-fields{grid-template-columns:1fr!important}}

/* Rebuilt photo course sections (September 2026) */
.lesson-sections{max-width:860px}.lesson-sections h2{font-size:26px;letter-spacing:-.6px;margin:38px 0 12px}.lesson-sections>p{font-size:16px;line-height:1.8;max-width:72ch;margin:0 0 16px}.lesson-sections em{font-style:italic}
.tells{list-style:none;padding:0;margin:20px 0;display:grid;gap:12px}.tells li{border:1px solid #cfc9bd;padding:18px 20px;background:#faf8f2}.tells li span{font:10px var(--mono);letter-spacing:2px;color:#4c28d6}.tells h3{margin:6px 0 8px;font-size:19px;letter-spacing:-.3px}.tells p,.lesson-steps p,.fixes dd,.lesson-list li{font-size:15px;line-height:1.75;margin:0}
.lesson-steps{padding:0;list-style:none;counter-reset:s;display:grid;gap:18px;margin:20px 0}.lesson-steps li{counter-increment:s;padding-left:54px;position:relative}.lesson-steps li::before{content:counter(s,decimal-leading-zero);position:absolute;left:0;top:2px;font:14px var(--mono);color:#4c28d6}.lesson-steps h3{margin:0 0 6px;font-size:18px;letter-spacing:-.2px}
.lesson-list{padding-left:22px;display:grid;gap:10px;max-width:72ch;margin:14px 0}
.tool-paths{margin:26px 0;border:1px solid #211f1a;background:#faf8f2}.tool-paths>h3{margin:0;padding:16px 20px;border-bottom:1px solid #211f1a;font-size:18px}.tool-paths>div{display:grid;grid-template-columns:1fr 1fr}.tool-paths section{padding:18px 20px}.tool-paths section+section{border-left:1px solid #cfc9bd}.tool-paths ol{padding-left:20px;margin:10px 0 0;display:grid;gap:10px;font-size:14px;line-height:1.65}
.vocab{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px;margin:18px 0}.vocab section{background:#e9e3d7;padding:16px}.vocab h3{margin:0 0 8px;font-size:14px;letter-spacing:.3px}.vocab p{margin:0;font:12px/1.8 var(--mono)}
.fixes{margin:18px 0;display:grid;gap:14px}.fixes dt{font-weight:700;font-size:16px}.fixes dd{margin:6px 0 0;max-width:72ch}
.lesson-rule{border-left:4px solid #4c28d6;background:#e9e3d7;padding:16px 20px;margin:24px 0;max-width:760px}.lesson-rule p:last-child{margin:6px 0 0;font-size:15px;line-height:1.7}
.nik-quote{margin:30px 0;padding:0;border:0;font:italic 24px/1.3 var(--serif);letter-spacing:-.3px;max-width:640px}.nik-quote cite{display:block;font:10px var(--mono);letter-spacing:2px;margin-top:10px;font-style:normal}
.lesson-gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:20px 0}.lesson-gallery figure{margin:0}.lesson-gallery img{width:100%;height:auto;display:block;border:1px solid #cfc9bd}.lesson-gallery figcaption{font:11px/1.6 var(--mono);margin-top:8px;color:#655e53}
.lesson-prompt h3{font-size:16px;margin:0 0 10px}.lesson-sections .teaching-prompt{white-space:pre-wrap;overflow-wrap:anywhere;background:#211f1a;color:#f5f1e8;padding:18px;font:13px/1.7 var(--mono);max-height:560px;overflow:auto;margin:0 0 12px}.prompt-note{font-size:13px;color:#655e53;margin:10px 0 0;max-width:72ch}
@media(max-width:700px){.tool-paths>div{grid-template-columns:1fr}.tool-paths section+section{border-left:0;border-top:1px solid #cfc9bd}.nik-quote{font-size:20px}.lesson-sections h2{font-size:22px}.lesson-sections .teaching-prompt{font-size:12px;max-height:420px}}

.lesson-steps.self-numbered li{padding-left:0}.lesson-steps.self-numbered li::before{content:none}

/* Lab UX pass, 14 September 2026: compact phone bar, lessons drawer, pager. */
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.sidebar-top{display:flex;justify-content:space-between;align-items:center}#close-sidebar{display:none;border:1px solid #211f1a;background:transparent;width:40px;height:40px;font-size:16px}
.lab-mobilebar{display:none}
#lesson-nav button:hover:not([aria-current="step"]){background:#e9e3d7}
.lesson-pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:36px;border-top:1px solid #cfc9bd;padding-top:20px}.lesson-pager button{border:1px solid #211f1a;background:#faf8f2;padding:14px 16px;text-align:left;display:grid;gap:4px;min-height:64px;font-size:13px;line-height:1.4}.lesson-pager button span{font:10px var(--mono);letter-spacing:1px;color:#655e53}.lesson-pager button:last-child{text-align:right}.lesson-pager button:hover:not(:disabled){background:#211f1a;color:#f3f0e8}.lesson-pager button:hover:not(:disabled) span{color:#cfc9bd}.lesson-pager button:disabled{opacity:.35;cursor:default}.next-lesson{display:none}
@media(max-width:700px){
.lab-header{position:static;padding:16px 20px;gap:12px}.lab-header nav{max-height:none;overflow:visible;gap:8px 16px}.lab-header nav a:nth-child(-n+5){display:none}.lab-wordmark{font-size:22px}.lab-wordmark span{margin-top:4px}.lab-notice{font-size:10px;padding:8px 20px}
.lab-mobilebar{display:flex;position:sticky;top:0;z-index:30;background:#211f1a;color:#f3f0e8;padding:0 8px;justify-content:space-between;align-items:center;font:11px var(--mono);letter-spacing:1px;border-bottom:1px solid #4c28d6}.lab-mobilebar button{background:transparent;border:0;color:inherit;font:inherit;padding:14px 10px;min-height:48px;letter-spacing:1px}.lab-mobilebar button[hidden]{display:none}
.lab-sidebar{position:fixed;inset:0;z-index:40;background:#f3f0e8;overflow:auto;max-height:none;border:0;padding:20px;transform:translateX(-102%);transition:transform .2s ease-out}body.sidebar-open .lab-sidebar{transform:none}body.sidebar-open{overflow:hidden}#close-sidebar{display:grid;place-items:center}
#course-navigation{margin-top:12px}#lesson-nav{display:grid;grid-template-columns:1fr;max-height:none;overflow:visible;gap:2px;padding:0}#lesson-nav button{flex:none;background:transparent;min-height:52px;font-size:14px;padding:12px 10px}#lesson-nav button[aria-current="step"]{background:#4c28d6;color:#fff}#lesson-nav .nav-group{margin-top:18px}
.lesson-pager{grid-template-columns:1fr 1fr}.lesson-pager button{font-size:12px;padding:12px}
#lesson{padding-top:24px}.lesson-top h1{font-size:38px;letter-spacing:-1.5px}
}
@media(prefers-reduced-motion:reduce){.lab-sidebar{transition:none}}

/* Clear, guided lesson exercises */
.practice .practice-task{font-size:19px;font-weight:650;line-height:1.5;max-width:65ch}.practice .practice-save-note{font-size:12px;color:#5d584e}.practice-field{padding:22px;background:#f8f5ed;border:1px solid #ccc4b6;min-width:0}.practice-field>label{font-size:16px;line-height:1.5}.practice-field-help{font-size:14px;line-height:1.7;margin:10px 0 14px;max-width:75ch}.practice-example{margin:0 0 16px;border-left:3px solid #4c28d6;padding:0 14px}.practice-example summary,.practice-export summary{cursor:pointer;font-size:14px;font-weight:650;line-height:1.5;padding:8px 0}.practice-example p,.practice-export p{font-size:14px;line-height:1.7;white-space:pre-line;overflow-wrap:anywhere}.practice-example .example-caption{font-size:12px;color:#655e53}.practice-export{border-top:1px solid #bdb4a4;padding-top:12px;margin-top:24px}.practice-export .worksheet{min-height:260px}.practice-next{max-width:75ch}@media(max-width:600px){.practice{padding:20px 14px}.practice-field{padding:16px 12px}.practice h2{font-size:27px}.practice .practice-task{font-size:17px}.practice-export .worksheet-actions{align-items:stretch;flex-direction:column}}

.lesson-motion{margin:2rem 0}.lesson-motion-pair{display:grid;grid-template-columns:1fr 1fr;gap:1rem;align-items:start}.lesson-motion-pair img,.lesson-motion-pair video{display:block;width:100%;height:auto;aspect-ratio:4/5;object-fit:contain;background:#211f19}.lesson-motion figcaption{font-size:.875rem;line-height:1.6;margin-top:.75rem;color:#646158}@media(max-width:600px){.lesson-motion-pair{grid-template-columns:1fr}}