/* Third course: image and instruments share one reading surface. */
@media(max-width:800px) and (min-height:650px){.reading-course .reading-preview{position:sticky;top:0;z-index:4;align-self:start;box-shadow:0 7px 20px #0005}.reading-course .reading-photo{aspect-ratio:auto;height:min(22svh,210px)}.reading-course .reading-histogram{padding:12px 17px}.reading-course .reading-histogram-heading{margin-bottom:9px}.reading-course .reading-histogram canvas{height:50px}.reading-course .reading-stats{margin-top:10px;padding-top:10px}.reading-course .reading-stats strong{font-size:16px}.reading-course .reading-stats span{font-size:8px}.reading-course .reading-photo-footer{min-height:36px;padding-block:9px}.reading-controls input,.reading-controls select,.reading-presets{scroll-margin-top:calc(22svh + 230px)}}
.header .course-tabs{gap:28px}.reading-intro h1{font-size:clamp(31px,3.3vw,47px)}.reading-intro .intro-row>p{font-size:12px}
.reading-lessons{display:grid;grid-template-columns:1fr 1.4fr 1fr 1fr .85fr 1.2fr;gap:8px;margin-bottom:20px;scroll-margin-top:24px}.reading-lessons button{display:flex;align-items:center;gap:10px;background:#191c18;border:1px solid #31382c;border-radius:7px;padding:15px 13px;font-size:11px;color:#aeb6a4;white-space:nowrap}.reading-lessons button>span{color:#7d8971;font-size:9px}.reading-lessons button:hover{background:#262b22;color:#f0eee8}.reading-lessons button[aria-pressed="true"]{background:#2c2b23;border-color:#8c765c;color:#f2dcc0}.reading-lessons button[aria-pressed="true"]>span{color:var(--accent)}
.reading-lab{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(340px,1fr);border:1px solid var(--line);border-radius:13px;overflow:hidden;background:var(--surface)}.reading-preview{min-width:0;border-right:1px solid var(--line);background:#151814}.reading-photo{position:relative;aspect-ratio:3/2;background:#20261d}.reading-photo canvas{width:100%;height:100%;display:block;object-fit:contain}.reading-photo-footer{display:flex;align-items:center;justify-content:space-between;gap:10px;min-height:48px;padding:13px 22px;font-size:10px;color:#a5af99;border-bottom:1px solid var(--line)}.reading-photo-footer button{padding:3px 0;background:none;font-size:10px;color:#dfc2a1;white-space:nowrap}.reading-photo-footer button[aria-pressed="false"]{color:#a5af99}
.reading-histogram{padding:20px 22px 17px}.reading-histogram-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.reading-histogram-heading>span{font-size:8px;letter-spacing:1.4px;color:#a2af94}.reading-channel{display:flex;border:1px solid #3a4233;border-radius:5px;padding:2px;gap:2px}.reading-channel button{background:none;font-size:9px;padding:5px 9px;color:#a3af95;border-radius:3px}.reading-channel button[aria-pressed="true"]{background:#363e2f;color:#e3e9da}.reading-histogram canvas{display:block;width:100%;height:auto;aspect-ratio:960/170}.reading-axis{display:flex;justify-content:space-between;margin-top:7px;font-size:9px;color:#8d9a80}.reading-stats{display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:10px;margin-top:20px;padding-top:17px;border-top:1px solid #30392a}.reading-stats>div{display:flex;flex-direction:column;gap:5px}.reading-stats strong{font-weight:450;font-size:19px;font-variant-numeric:tabular-nums;color:#d8d8c9}.reading-stats span{font-size:9px;line-height:1.5;color:#909e83}
.reading-explanation{padding:26px 26px 23px;display:flex;flex-direction:column;min-width:0}.reading-lesson-heading{display:flex;align-items:center;justify-content:space-between;gap:9px}.reading-lesson-heading .eyebrow{font-size:8px;letter-spacing:1.4px}.reading-explanation h2{font-weight:450;font-size:27px;letter-spacing:-.7px;line-height:1.22;margin:17px 0 13px}.reading-explanation .composition-body{margin-bottom:19px}.reading-controls{display:grid;gap:19px;margin:2px 0 23px}.reading-control{--control-color:#d7ba98}.reading-control-heading{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px}.reading-control label{font-size:11px;color:#d1d6c8}.reading-control output{font-size:19px;font-weight:450;color:#e5c7a5;font-variant-numeric:tabular-nums;white-space:nowrap}.reading-control .range-ends{font-size:9px;gap:10px}.reading-control select{padding:8px 10px;background:#252c20;border:1px solid #46523a;border-radius:5px;color:#d3ddc8;font:inherit;font-size:11px;max-width:55%}.reading-presets{display:flex;gap:6px}.reading-presets button{flex:1;font-size:10px;line-height:1.4;padding:9px 5px;border-radius:5px;background:#242a20;border:1px solid #3c4732;color:#abb89c}.reading-presets button[aria-pressed="true"]{background:#d9c3a4;border-color:#d9c3a4;color:#24291d}.reading-presets button:hover{border-color:#b9bf9e}.reading-observation{font-size:11px;line-height:1.8;color:#c9b491;margin:15px 0 20px;min-height:58px}.reading-explanation .composition-field>p{margin-bottom:17px}
.reading-takeaway{margin-top:48px;border-top:1px solid var(--line);padding-top:33px}.reading-takeaway h2{font-size:32px;font-weight:450;letter-spacing:-1px;margin:17px 0 30px}.reading-takeaway h2 span{color:#a6b093}.reading-reminders{display:grid;grid-template-columns:repeat(3,1fr);gap:35px}.reading-reminders article{border-top:1px solid #3c4136;padding-top:19px}.reading-reminders article>span{font-size:8px;letter-spacing:1.3px;color:#a78f71}.reading-reminders h3{font-size:17px;font-weight:450;letter-spacing:-.2px;margin:17px 0 10px}.reading-reminders p{font-size:12px;line-height:1.85;color:#9ca78f;margin:0}.reading-details{margin-top:34px;padding:17px 20px;border:1px solid var(--line);border-radius:7px;color:var(--muted);font-size:11px;line-height:1.8}.reading-details summary{cursor:pointer;color:#c0cbb3}.reading-details p{max-width:950px;margin:13px 0 0}
@media(max-width:1150px){.header-note{display:none}.header .course-tabs{margin-left:auto}.reading-lab{grid-template-columns:minmax(0,1.5fr) minmax(310px,1fr)}.reading-explanation{padding:23px}.reading-explanation h2{font-size:25px}.reading-lessons{gap:6px}.reading-lessons button{font-size:10px;gap:6px;padding:13px 8px}.reading-intro h1{font-size:40px}}
@media(max-width:800px){.header{height:auto;min-height:108px;padding-top:19px;flex-wrap:wrap;gap:10px}.header .course-tabs{order:3;margin:0;flex-basis:100%;justify-content:space-between;gap:10px;font-size:12px}.header .course-tabs a{padding:9px 0 13px}.reading-intro h1{font-size:35px}.reading-intro h1 em{display:block;margin-top:5px}.reading-lessons{display:flex;overflow-x:auto;scrollbar-width:thin;scrollbar-color:#545e46 transparent;padding-bottom:8px;gap:7px;margin-bottom:14px}.reading-lessons button{flex-shrink:0;padding:12px;font-size:11px}.reading-lab{grid-template-columns:1fr;overflow:visible}.reading-preview{border-right:0;border-bottom:1px solid var(--line);border-radius:12px 12px 0 0;overflow:hidden}.reading-photo-footer{padding:12px 17px;font-size:9px}.reading-photo-footer button{font-size:9px}.reading-histogram{padding:17px}.reading-histogram-heading>span{font-size:7px;letter-spacing:1px}.reading-histogram-heading{margin-bottom:13px}.reading-channel button{font-size:9px;padding:5px 7px}.reading-explanation{padding:24px}.reading-explanation h2{font-size:29px}.reading-explanation .composition-lead{font-size:14px}.reading-explanation .composition-body{font-size:13px}.reading-control label{font-size:13px}.reading-control output{font-size:22px}.reading-controls{gap:24px}.reading-control .range-ends{font-size:10px}.reading-presets button{font-size:11px;padding:11px 7px}.reading-observation{font-size:12px;min-height:0}.reading-takeaway{margin-top:35px;padding-top:28px}.reading-takeaway h2{font-size:29px}.reading-reminders{grid-template-columns:1fr;gap:25px}.reading-stats{margin-top:16px;padding-top:14px}.reading-details{padding:16px}.reading-lesson-heading .reset{font-size:10px}}