.course-hero{min-height:0}.course-hero h1{max-width:1000px}.course-hero .quiet{color:var(--on-ink)}
#course-video{scroll-margin-top:var(--header-height)}#course-video video{display:block;width:100%;max-height:75vh;background:var(--ink-field);aspect-ratio:16/9}
.course-reader{margin-top:28px}.course-reader-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.course-reader-tools label{flex:1;max-width:180px}.course-reader-tools select{width:100%;min-height:44px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:var(--radius-sm);padding:8px 12px;font:inherit}.course-reader-tools button{min-height:44px}
.course-slide figure{margin:0}.course-slide img{display:block;width:100%;height:auto;aspect-ratio:16/9;object-fit:contain;background:var(--ink-field)}.course-slide a{display:block}.course-slide figcaption{text-align:right;margin-top:8px;color:var(--muted);font-size:var(--fs-small)}
.course-notes{max-width:1000px}.course-note{border-top:1px solid var(--line);padding:32px 0;scroll-margin-top:calc(var(--header-height) + 12px);overflow-wrap:anywhere}.course-note h2{margin-top:0}.course-note h3{font-size:var(--fs-lead);font-weight:600;margin:24px 0 12px}.course-note p{margin:12px 0}.course-note ul,.course-note ol{padding-left:24px;margin:16px 0}.course-note li{margin:8px 0}.course-note img{max-width:100%;height:auto;max-height:200px}.course-note table{width:100%;border-collapse:collapse;margin:20px 0;font-size:var(--fs-small)}.course-note td,.course-note th{text-align:left;vertical-align:top;padding:10px 6px;border-bottom:1px solid var(--line)}.course-note a{color:var(--accent-deep);text-decoration:underline}.course-note a[download]{display:inline-flex;min-height:44px;align-items:center}.course-outline{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:20px}.course-outline button{min-width:44px;min-height:44px}.course-note time{font-weight:600;margin-right:12px}
@media(max-width:760px){.course-hero h1{font-size:var(--fs-h3);overflow-wrap:anywhere}.course-note{padding:24px 0}.course-note table{table-layout:fixed}.course-note td,.course-note th{overflow-wrap:anywhere}.course-reader-tools{gap:8px}.course-note .button{white-space:normal;height:auto}}

.course-note img{background:var(--on-ink);padding:12px}

/* Introductory lesson: five distinct steps, then a separate gift field. */
.course-note .course-question-list{list-style:none;margin:28px 0;padding:0;display:grid;gap:16px}
.course-note .course-question{display:grid;grid-template-columns:80px minmax(0,1fr);gap:24px;margin:0;padding:28px;background:var(--bg);border-radius:var(--radius)}
.course-question-art{display:block;width:80px;align-self:start}
.course-question-number{display:block;margin-bottom:8px;color:var(--accent-deep);font-size:var(--fs-small);font-weight:800;letter-spacing:var(--tr-eyebrow)}
.course-note .course-question h3{margin:0;font-size:var(--fs-h3);line-height:1.3;letter-spacing:var(--tr-h3)}
.course-note .course-question p{margin:14px 0 0;color:var(--muted-strong);font-size:var(--fs-lead)}
.course-note .course-questions-intro{max-width:720px;color:var(--muted-strong)}
.course-note .course-question-takeaway{max-width:720px;margin-top:28px;padding-left:20px;border-left:1px solid var(--line-strong)}
.course-gift{background:var(--bg);border-radius:var(--radius);padding:40px}
.course-gift-intro{display:grid;grid-template-columns:minmax(0,1fr) 240px;align-items:center;gap:32px}
.course-note .course-gift .eyebrow{color:var(--accent-deep);margin:0 0 16px}
.course-note .course-gift h2{max-width:600px}
.course-note .course-gift-caption{color:var(--muted-strong);font-size:var(--fs-body)}
.course-note .course-gift a.button{margin-top:16px;color:var(--accent-ink);text-decoration:none;white-space:normal;text-align:center}
.course-gift-art{width:100%;max-width:240px;justify-self:center}
.course-glossary{margin-top:40px;padding-top:32px;border-top:1px solid var(--line-strong)}
.course-note .course-glossary>h3{margin:0 0 12px;font-size:var(--fs-h3)}
.course-note .course-glossary-group>h3{margin:32px 0 16px;color:var(--muted-strong);font-size:var(--fs-body);font-weight:800}
.course-glossary-term{border-top:1px solid var(--line)}
.course-glossary-term:last-child{border-bottom:1px solid var(--line)}
.course-glossary-term summary{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:64px;padding:16px 0;font-size:var(--fs-lead);font-weight:600;line-height:1.4;cursor:pointer;list-style:none}
.course-glossary-term summary::-webkit-details-marker{display:none}
.course-glossary-term summary svg{width:24px;height:24px;flex:none;fill:none;stroke:currentColor;stroke-width:1.5}
.course-glossary-term[open] summary svg path:last-child{display:none}
.course-glossary-definition{display:grid;grid-template-columns:1fr 1fr;gap:28px;padding:12px 0 28px}
.course-glossary-definition h4{font-size:var(--fs-small);font-weight:800}
.course-note .course-glossary-definition p{color:var(--muted-strong);font-size:var(--fs-body);margin-bottom:0}
@media(max-width:760px){
 .course-note .course-question{grid-template-columns:52px minmax(0,1fr);gap:14px;padding:20px 16px}
 .course-question-art{width:52px}
 .course-note .course-question h3{font-size:var(--fs-lead)}
 .course-note .course-question p{font-size:var(--fs-body)}
 .course-gift{padding:24px 20px}
 .course-gift-intro{grid-template-columns:1fr;gap:24px}
 .course-gift-intro>div:first-child{display:contents}
 .course-gift-intro .eyebrow{order:0}
 .course-gift-art{order:1;width:160px}
 .course-gift-intro h2{order:2}
 .course-gift-intro p:not(.eyebrow){order:3;margin:0}
 .course-gift-intro a{order:4;justify-self:start}
 .course-note .course-gift .eyebrow{margin:0}
 .course-glossary-definition{grid-template-columns:1fr;gap:20px}
 .course-glossary-term summary{font-size:var(--fs-body);gap:12px}
}

/* Element legend palette from the original lesson 1 LMS swatches. */
.course-color-legend{--course-rb:#ea8c8c;--course-fvg:#78acf0;--course-snr:#6ee97c;display:grid;grid-template-columns:minmax(0,1fr);gap:28px;margin-top:28px}
.course-color-legend>article{min-width:0}
.course-color-swatch{display:block;width:80px;height:40px;margin-bottom:16px;border:0;box-shadow:none}
.course-color-swatch-rb{background:var(--course-rb)}
.course-color-swatch-fvg{background:var(--course-fvg)}
.course-color-swatch-snr{background:var(--course-snr)}
.course-note .course-color-legend h3{margin:0 0 12px}
@media(min-width:761px){.course-color-legend{grid-template-columns:repeat(3,minmax(0,1fr))}}

.course-outline{display:block;margin:0 0 28px;border-bottom:1px solid var(--line);padding-bottom:16px}
.course-outline summary{min-height:44px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-weight:600;cursor:pointer;list-style:none}
.course-outline summary::-webkit-details-marker{display:none}
.course-outline summary::after{content:'+';font-size:var(--fs-lead);color:var(--accent-deep)}
.course-outline[open] summary::after{content:'−'}
.course-outline nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 24px;padding:12px 0}
.course-outline button{display:flex;gap:12px;align-items:baseline;min-height:44px;white-space:normal;text-align:left;line-height:1.5;padding:10px 0;justify-content:start}
.course-outline button span{color:var(--accent-deep);min-width:24px}
@media(max-width:760px){.course-outline nav{grid-template-columns:1fr}}