/* One lesson, one current task. Hints do not cover or intercept controls. */
body[data-lesson-focus=true] .context-bar{display:none}
body[data-lesson-focus=true] .school-sidebar:not(.is-open){display:none}
body[data-lesson-focus=true] .app-shell{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}
body[data-lesson-focus=true] main{padding-top:20px}
body[data-lesson-focus=true] .mission-page-top,body[data-lesson-focus=true] .mission-lab-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin:0 0 14px}
body[data-lesson-focus=true] .mission-page-top .back-link{margin:0;font-size:13px}
body[data-lesson-focus=true] .mission-title-row,body[data-lesson-focus=true] .depth-lesson-title{margin:0 0 20px;display:block}
body[data-lesson-focus=true] .depth-lesson-title h1,body[data-lesson-focus=true] .mission-title-row h1,body[data-lesson-focus=true] .mission-lab-top h1{font-size:26px;font-weight:500;line-height:1.25;letter-spacing:-.5px;margin:0 0 16px}
body[data-lesson-focus=true] .depth-lesson-title>.eyebrow,body[data-lesson-focus=true] .mission-title-row .eyebrow,body[data-lesson-focus=true] .bookmark-dot{display:none}
.guided-steps,.ac-stepper{display:flex;gap:6px;padding:3px 0 10px;margin:0;overflow-x:auto;max-width:100%;scrollbar-width:thin}
.guided-steps button,.ac-stepper button{display:flex;align-items:center;justify-content:center;gap:8px;flex:1 0 auto;min-height:44px;background:#fff;border:1px solid #e0e9ee;border-radius:10px;padding:9px 12px;font:400 13px var(--font);color:#647689;white-space:nowrap}
.guided-steps button span,.ac-stepper button span{display:grid;place-items:center;width:22px;height:22px;font-size:11px;border-radius:50%;background:#eff4f7;flex-shrink:0}
.guided-steps button.current,.ac-stepper button.current{border-color:#00a7ce;background:#e9f8fc;color:#006b87;font-weight:500}
.guided-steps button.done span{color:#13755f;background:#e8f6ef}.guided-steps button:disabled{opacity:.6;cursor:default}
.guided-coach.platform-guide{display:flex;align-items:center;gap:12px;padding:11px 14px;margin:0 0 14px;background:#eefaff;border:1px solid #c5e6ef;border-radius:12px}
.guided-coach>img{flex:0 0 24px}.guided-coach>p{margin:0;font-size:13px;line-height:1.5;color:#336075;flex:1}
.guided-coach>button{border:0;background:transparent;border-radius:8px;font-size:22px;width:36px;height:36px;cursor:pointer;color:#527281;flex-shrink:0}
.guide-focus{outline:2px solid #00a7ce;outline-offset:4px;border-radius:10px}
.depth-settings.guide-focus{outline:0}.depth-settings.guide-focus input:not([type=range]),.depth-settings.guide-focus select{border-color:#58bed5}
.platform-guide-open{min-height:36px;font-size:13px!important;margin:0!important}.platform-guide-open[aria-pressed=true]{color:#00748d}
.guided-lab-progress{display:flex;gap:16px;border-bottom:1px solid #e8eff3;padding:0 0 14px;margin:0 0 24px;flex-wrap:wrap}
.guided-lab-progress>span{display:flex;align-items:center;gap:7px;font-size:12px;color:#788693}
.guided-lab-progress i{font-style:normal;display:grid;place-items:center;width:21px;height:21px;background:#f0f4f6;border-radius:50%;font-size:11px}
.guided-lab-progress .current{color:#00748e;font-weight:500}.guided-lab-progress .current i{background:#daf3fa}.guided-lab-progress .done i{background:#e8f6ef;color:#13755f}
.lesson-workspace .guided-lab{display:block}.guided-lab .depth-console{max-width:620px;margin:0 auto}.guided-lab .depth-settings{border:0;margin:0 0 20px;padding:0}
.guided-lab .depth-console>.primary-button{width:100%;margin-top:8px}
.guided-lab .depth-console>.text-link{display:block;margin:12px auto 0;font-size:13px;min-height:36px}
.guided-lab .depth-visual{max-width:740px;margin:0 auto}.guided-lab .depth-visual>.primary-button{margin:14px 0 0;min-width:200px}.guided-lab .depth-visual>.text-link{margin-left:18px;font-size:13px}
.guided-lab .depth-scene{max-height:350px;min-height:190px}.lesson-experiment-result{margin:20px 0!important}
.guided-retry{min-height:44px;margin-top:12px;font-size:13px}
.lesson-workspace [hidden]{display:none!important}.lesson-workspace .lesson-assignment h2{font-size:24px;font-weight:500;line-height:1.4}.lesson-workspace .lesson-assignment{padding:24px 28px}.lesson-workspace .lesson-work-area{padding:26px 28px}
.lesson-primer .lesson-work-heading{font-size:19px;font-weight:500;margin:0 0 18px}.primer-back{display:block;min-height:36px;font-size:13px;margin-bottom:14px}.lesson-primer .primer-cases{margin-bottom:22px}
body[data-lesson-focus=true] .lesson-reference{margin-top:12px}.lesson-workspace,.guide-focus{scroll-margin-top:96px}
@media(max-width:700px){body[data-lesson-focus=true] .app-shell{padding:0 16px}body[data-lesson-focus=true] main{padding-top:16px}body[data-lesson-focus=true] .depth-lesson-title h1,body[data-lesson-focus=true] .mission-title-row h1{font-size:23px;margin-bottom:12px}.guided-steps button,.ac-stepper button{flex:0 0 auto;font-size:12px;padding:8px 10px;min-height:42px}.lesson-workspace .lesson-assignment{padding:18px}.lesson-workspace .lesson-work-area{padding:20px 18px}.lesson-workspace .lesson-assignment h2{font-size:21px}.guided-lab-progress{gap:9px;justify-content:space-between;margin-bottom:20px}.guided-lab-progress>span{font-size:10px;gap:4px}.guided-lab-progress i{width:18px;height:18px;font-size:10px}.guided-coach.platform-guide{padding:9px 10px;gap:8px}.guided-coach>p{font-size:12px}.guided-lab .depth-visual>.primary-button{width:100%}.guided-lab .depth-visual>.text-link{display:block;margin:10px auto 0;min-height:36px}.guided-retry{width:100%}.lesson-workspace,.guide-focus{scroll-margin-top:82px}}
@media(prefers-reduced-motion:reduce){.guide-focus{animation:none}}
/* The workshop keeps a single title and a compact return link. */
body[data-lesson-focus=true] .mission-lab-top{display:grid;grid-template-columns:auto minmax(0,1fr) auto auto;gap:22px}
body[data-lesson-focus=true] .mission-lab-top h1{margin:0;font-size:24px;color:var(--ink)}
body[data-lesson-focus=true] .mission-lab-top .back-link{margin:0;font:400 13px var(--font)}
@media(max-width:700px){body[data-lesson-focus=true] .mission-lab-top{grid-template-columns:1fr auto;gap:12px}body[data-lesson-focus=true] .mission-lab-top h1{grid-column:1/-1;grid-row:2;margin:0;font-size:22px}body[data-lesson-focus=true] .mission-lab-top>.text-link{font-size:12px}body[data-lesson-focus=true] .mission-lab-top>[data-action=exit-lab]{display:none}}
/* Main observations stay visible; detailed measurements remain optional. */
.experiment-readout{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:16px 0 0;padding:16px 18px;background:#f0f9fc;border:1px solid #d6edf4;border-radius:14px;color:#22354a}
.experiment-readout>div{display:flex;flex-direction:column;gap:4px;min-width:0}
.experiment-readout span{font-size:12px;color:#506777;line-height:1.4}
.experiment-readout strong{font-size:27px;line-height:1.2;font-weight:600;white-space:nowrap}
.experiment-readout small{font-size:12px;color:#506777;line-height:1.4}
.experiment-play-state{font-size:12px;line-height:1.5;color:#506777;margin:10px 0!important;min-height:18px}
.guided-lab .depth-scene{max-height:280px;min-height:170px}
.guided-lab .depth-visual>.lesson-work-heading{display:none}
.guided-settings-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;padding:14px 16px;margin:0 0 20px;background:#f4f8fa;border-radius:12px}
.guided-settings-summary dt{font-size:12px;color:#506777}.guided-settings-summary dd{margin:6px 0 0;font-size:19px;color:#22354a}
.guided-rule{font-size:13px;line-height:1.65;color:#506777;margin:0 0 20px;max-width:52ch}
.lesson-workspace p.lesson-forecast-result{display:block;background:none;border:0;padding:0;margin:10px 0;font-size:13px;line-height:1.6;color:#506777}
.lesson-workspace p.lesson-forecast-result b{font-size:inherit;font-weight:500;display:inline;color:inherit}
.lesson-experiment-result.depth-feedback{padding:16px 18px;border-radius:12px}
.lesson-experiment-result.depth-feedback>b{font-size:17px;font-weight:500}
.lesson-experiment-result.depth-feedback>p{margin:8px 0 0;font-size:13px;line-height:1.6}
.lesson-workspace .depth-next{justify-content:flex-start;margin:14px 0 0}.lesson-workspace .depth-next .primary-button{width:auto;min-width:220px}
.lesson-workspace .guided-retry{margin:12px 0 16px}.lesson-workspace .guided-retry.text-link{min-height:44px;font-size:13px}
.lesson-lock{display:flex;align-items:flex-start;gap:16px;margin:0 0 24px;padding:24px;background:#fff;border:1px solid #dce7ed;border-radius:18px;max-width:740px}
.lesson-lock>.icon{width:28px;height:28px;color:#587081;flex-shrink:0;margin-top:2px}
.lesson-lock h2{font-size:21px;font-weight:500;line-height:1.4;margin:0 0 8px;color:#22354a}
.lesson-lock p{margin:0 0 18px;font-size:15px;line-height:1.5;color:#506777}
.school-course-grid .school-course-card.is-locked{background:#f9fbfc;border-color:#e0e7ec}.school-course-grid .school-course-card.is-locked:hover{transform:none;border-color:#bacbd5;background:#f9fbfc}
.school-course-card.is-locked .school-course-bottom{color:#506777}.school-course-card.is-locked .school-course-top .course-thumb{opacity:.7}
.mission-tile.depth-future{cursor:default!important;background:#f8fafb!important}.mission-tile.depth-future:hover{transform:none!important;background:#f8fafb!important}.mission-tile.depth-future .icon{color:#667d8d}
@media(max-width:700px){.experiment-readout{gap:8px;padding:14px 12px}.experiment-readout strong{font-size:23px}.experiment-readout span,.experiment-readout small{font-size:11px}.guided-settings-summary{gap:8px;padding:12px}.guided-settings-summary dt{font-size:11px}.guided-settings-summary dd{font-size:17px}.lesson-lock{padding:20px 16px;gap:12px}.lesson-lock h2{font-size:19px}.lesson-lock p{font-size:14px}.lesson-lock .primary-button{width:100%}.lesson-workspace .depth-next .primary-button{width:100%;min-width:0}}
@media(max-width:700px){.experiment-readout{grid-template-columns:repeat(2,minmax(0,1fr))}.experiment-readout>div:nth-child(3){grid-column:1/-1}}