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 .product-intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,7vw,6rem);align-items:start;margin:0 0 clamp(3rem,8vw,6rem);padding:clamp(1.5rem,4vw,3.25rem);border:1px solid #efd9ca;border-radius:24px;background:linear-gradient(135deg,#fff8f3 0%,#fffefa 72%);box-shadow:var(--shadow)}.product-intro-copy h1{max-width:12ch;margin:.35rem 0 1rem;font-size:clamp(2.5rem,6vw,5rem);line-height:.98;letter-spacing:-.07em}.product-intro-copy>p:last-child{max-width:48ch;margin:0;color:var(--muted);font-size:1.08rem;line-height:1.7}.exercise-formats-heading h2{margin:.15rem 0 .35rem}.exercise-formats-heading p{margin:.35rem 0 1rem}.exercise-format-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.65rem}.exercise-format{padding:.85rem 1rem;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.72)}.exercise-format strong{display:block;font-size:.95rem}.exercise-format p{margin:.3rem 0 0;color:var(--muted);font-size:.82rem;line-height:1.4}@media(max-width:760px){.product-intro{grid-template-columns:1fr;gap:2rem;padding:1.25rem}.product-intro-copy h1{max-width:16ch}}@media(max-width:430px){.exercise-format-list{grid-template-columns:1fr}}
/* Public marketing surface: one quiet editorial system around the existing product window. */
:root{--radius:18px;--accent-deep:#b84f32;--paper:#f7f3eb;--card:#fffdf9;--line:#ded9cf;--shadow:0 22px 60px #5b382014}body{background:radial-gradient(circle at 86% 0,#f2d5bd 0,transparent 28%),var(--paper);font-family:Inter,ui-sans-serif,system-ui,sans-serif}h1,h2,h3{font-family:Georgia,'Times New Roman',serif;font-weight:500}button,.button{transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease}.site-header{max-width:1280px;margin:0 auto;padding-top:1.6rem}.brand{font-family:Georgia,'Times New Roman',serif;font-size:1.7rem}.shell{max-width:1160px}.product-intro{position:relative;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(2rem,6vw,5rem);padding:clamp(2rem,5vw,4.5rem);border-color:#ebcbb8;border-radius:var(--radius);background:linear-gradient(135deg,#fff9f4 0%,#fffdf9 72%);box-shadow:var(--shadow);overflow:hidden}.product-intro:before{content:'';position:absolute;inset:0 0 auto auto;width:8rem;height:8rem;border-left:1px solid #e36d4338;border-bottom:1px solid #e36d4338;border-radius:0 0 0 100%;pointer-events:none}.product-intro-copy h1{font-size:clamp(3rem,7vw,6.6rem);line-height:.92}.product-intro-copy>p:last-child{font-size:1.12rem}.eyebrow{color:var(--accent-deep)}.intro-actions{display:flex;flex-wrap:wrap;gap:.7rem;margin-top:1.7rem}.intro-actions .button:first-child{box-shadow:0 8px 18px #17242b1c}.intro-proof{grid-column:1 / -1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.2fr);gap:1.5rem;align-items:end;padding-top:1.4rem;border-top:1px solid #e8d7cb}.intro-proof p{margin:.35rem 0 0;max-width:52ch;color:var(--muted);line-height:1.55}.intro-proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.6rem}.intro-proof-grid strong{display:block;padding:.8rem;border-left:2px solid var(--accent);font-size:.82rem;line-height:1.3}.exercise-format{border-radius:12px;background:#fffefa}.product-preview{scroll-margin-top:1.5rem}.product-preview h2{font-size:clamp(2rem,4vw,3.3rem);letter-spacing:-.04em}.product-level-entry{border-radius:12px;background:#fffefa}.product-level-entry:hover,.product-level-entry:focus-visible{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 8px 20px #5b382012}.button:hover{transform:translateY(-1px);box-shadow:0 7px 18px #17242b18}.button-outline:hover{box-shadow:none;background:#fff1e9;border-color:var(--accent)}@media(max-width:760px){.intro-proof{grid-template-columns:1fr}.intro-proof-grid{grid-template-columns:1fr 1fr}.product-intro-copy h1{font-size:clamp(2.8rem,13vw,5rem)}}@media(max-width:430px){.intro-proof-grid{grid-template-columns:1fr}.intro-actions{display:grid}.intro-actions .button{width:100%}}@media(prefers-reduced-motion:reduce){button,.button,.product-level-entry{transition:none!important}.button:hover,.product-level-entry:hover{transform:none}}
/* Public root: keep the preview readable from 320px upward without changing the authenticated layouts. */
body{overflow-x:hidden}.site-header{padding-inline:clamp(.8rem,4vw,5rem)}.account-actions{min-width:0;gap:clamp(.45rem,2vw,1rem)}.product-intro{grid-template-columns:minmax(0,1fr);gap:1.5rem;margin-bottom:clamp(2.5rem,7vw,5rem);padding:clamp(1.25rem,5vw,4rem)}.product-intro-copy h1{max-width:14ch;font-size:clamp(2.5rem,10vw,6.6rem);line-height:.95}.product-intro-copy>p:last-child{max-width:58ch}.intro-actions{display:flex;flex-wrap:wrap}.product-preview{min-width:0}.product-level-entry,.product-task-row,.product-search-result{min-height:3rem}.product-task-row{grid-template-columns:auto minmax(0,1fr) auto;gap:.55rem}.product-task-title{overflow-wrap:anywhere}.product-search-panel{max-width:calc(100vw - 1.6rem)}
@media(max-width:680px){.site-header{align-items:center;padding-block:1rem}.brand{font-size:1.4rem}.account-actions{justify-content:flex-end;flex-wrap:wrap}.language-control{width:auto;justify-content:initial;order:initial;flex:0 0 auto}.global-action{min-height:2.5rem}.shell{padding-inline:.8rem}.product-intro{padding:1.25rem;border-radius:var(--radius)}.product-intro-copy h1{font-size:clamp(2.5rem,13vw,4.5rem)}.intro-actions{display:grid;gap:.6rem}.intro-actions .button{width:100%;min-height:2.9rem}.product-preview h2{font-size:clamp(1.9rem,9vw,3.3rem)}.product-level-entry{padding:1rem}.product-context-breadcrumb{overflow-x:auto;white-space:nowrap}.product-task-row{grid-template-columns:auto minmax(0,1fr) auto;padding:.8rem .65rem}.product-task-count{grid-column:2}.product-task-arrow{grid-column:3;grid-row:1 / span 2}.product-search-result{align-items:flex-start;flex-direction:column;gap:.3rem}.product-search-result small{white-space:normal}.product-search-panel{top:calc(100% + .25rem);right:.8rem;width:calc(100vw - 1.6rem)}.learner-navigation{gap:.5rem}.learner-navigation button{min-width:0;flex:1 1 0;padding-inline:.65rem;overflow-wrap:anywhere}}
@media(min-width:681px){.product-intro{grid-template-columns:minmax(0,1fr) minmax(16rem,.55fr)}}
.learner-progress-group{display:flex;align-items:center;justify-content:flex-end;gap:.65rem;min-width:0}.learner-progress-indicator{width:clamp(4.5rem,18vw,8rem);height:.6rem;accent-color:var(--accent)}@media(max-width:430px){.learner-topbar{gap:.6rem}.learner-progress-group{gap:.45rem}.learner-progress-indicator{width:clamp(3.75rem,24vw,6rem)}.learner-counter{font-size:.8rem;white-space:nowrap}}
 .learner-exercise h4:focus-visible{outline:3px solid #e36d4366;outline-offset:4px;border-radius:4px}
/* Production search: in-flow panel beneath map title (no overlay). */
#product-preview .product-search-panel{position:static;z-index:auto;top:auto;left:auto;right:auto;width:100%;max-width:none;margin:.75rem 0 1rem}
#product-preview .product-preview-search{max-width:34rem}
@media(max-width:680px){#product-preview .product-search-panel{position:static;top:auto;right:auto;width:100%;max-width:none}}
:root{--t026-image-ratio:16/9}.description-image-card .exercise-image{display:block;width:100%;max-width:100%;aspect-ratio:var(--t026-image-ratio);height:auto;max-height:360px;object-fit:cover;object-position:center}
.learner-overview{max-width:900px}.learner-overview .learner-topbar{border-bottom:1px solid var(--line);padding-bottom:1rem}.learner-route-label{color:var(--muted);font-size:.85rem;font-weight:700}.learner-route{display:grid;gap:.75rem}.learner-route-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:1rem;width:100%;padding:1rem 1.1rem;border:1px solid var(--line);border-radius:16px;background:var(--card);color:var(--ink);font:inherit;text-align:left;cursor:pointer;box-shadow:0 8px 24px #17242b08;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}.learner-route-card:hover,.learner-route-card:focus-visible{transform:translateY(-2px);border-color:var(--accent);box-shadow:0 14px 30px #17242b14}.learner-route-icon{display:grid;place-items:center;width:2.6rem;height:2.6rem;border-radius:50%;background:#fff0e8;color:var(--accent-deep);font-size:1.35rem}.learner-route-copy{display:grid;gap:.25rem;min-width:0}.learner-route-copy small{color:var(--muted);line-height:1.4}.learner-route-status{font-size:.78rem;font-weight:800;color:var(--muted);white-space:nowrap}.learner-route-card-completed .learner-route-status{color:#28734f}.learner-route-card-available{border-color:#e6b39d}.learner-route-card-available .learner-route-status{color:var(--accent-deep)}.description-production{padding:.7rem .85rem;margin-bottom:.8rem;border-radius:12px;background:#fff;border:1px solid var(--line)}.description-production h6{margin:0 0 .3rem}.description-production p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}@media(max-width:680px){.learner-route-card{grid-template-columns:auto minmax(0,1fr);align-items:start}.learner-route-status{grid-column:2}.learner-route-icon{width:2.35rem;height:2.35rem}}
/* One learner exercise shell: every format shares this frame; only its controls vary. */
.learner-exercise-shell{padding:clamp(1rem,4vw,2rem);border-radius:16px;border-color:var(--line);background:var(--card);box-shadow:0 20px 55px #5b382012;overflow:hidden}
.learner-exercise-header{display:flex;align-items:flex-start;gap:.85rem;margin-bottom:1.15rem}
.learner-exercise-icon{display:grid;place-items:center;flex:0 0 2.6rem;width:2.6rem;height:2.6rem;border-radius:50%;background:#fff0e8;color:var(--accent-deep);font-size:1.3rem}
.learner-exercise-header .eyebrow{margin:.1rem 0 .25rem}.learner-exercise-description{margin:0;color:var(--muted);font-size:.88rem}
.learner-exercise-prompt{margin:0 0 1.25rem;font-size:clamp(1.35rem,3vw,2rem);line-height:1.2}
.learner-prompt-region{display:grid;gap:1rem}.learner-prompt-region>p:first-child{margin-top:0}
.learner-choice{display:flex;align-items:center;gap:.65rem;padding:.8rem 1rem;border:1px solid var(--line);border-radius:12px;min-height:3.25rem;cursor:pointer}
.learner-choice:has(input:checked){border-color:var(--accent);background:#fff8f3}.learner-choice input{width:auto;margin:0}
.learner-fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(12rem,1fr));gap:.75rem}.learner-fields label{margin:.25rem 0}
.learner-feedback{min-height:1.4rem}.learner-result{margin:.75rem 0 0;color:#28734f}.learner-result.error{color:var(--accent-deep)}
.learner-not-evaluable .learner-feedback{border-top:1px solid var(--line);margin-top:1rem}.learner-exercise-shell .description-image-card{margin:0 -1rem 0}
@media(max-width:430px){.learner-exercise-shell{border-radius:14px}.learner-exercise-icon{flex-basis:2.35rem;width:2.35rem;height:2.35rem}.learner-fields{grid-template-columns:1fr}}
/* Learner routes replace the public surface instead of expanding below it. */
body.learner-immersive{background:var(--paper)}
body.learner-immersive .site-header,body.learner-immersive main.shell{display:none}
body.learner-immersive #learner-player{display:block;min-height:100vh;margin:0;padding:clamp(1rem,5vw,4rem) clamp(.8rem,4vw,3rem);background:var(--paper)}
body.learner-immersive #learner-player>.learner-shell{width:min(56rem,100%);margin:0 auto}
body:has(> #learner-player:not(.hidden)) .site-header,body:has(> #learner-player:not(.hidden)) main.shell{display:none}
/* Focused learner route: preserve SPA state while removing unrelated chrome. */
body.learner-focused{background:var(--paper)}
body.learner-focused .site-header,body.learner-focused main>.shell> :not(#learner-player),body.learner-focused main>.product-preview{display:none}
body.learner-focused .shell{max-width:none;padding:0;min-height:100vh}
body.learner-focused #learner-player{display:block;min-height:100vh;margin:0;padding:clamp(1rem,5vw,4rem) clamp(.8rem,4vw,3rem);background:var(--paper)}
body.learner-focused #learner-player>.learner-shell{width:min(46rem,100%);margin:0 auto}
body.learner-focused .learner-exercise-shell{box-shadow:0 14px 42px #17242b12}
.learner-type-groups{display:grid;gap:1.5rem}.learner-type-group{padding:1.1rem;border:1px solid var(--line);border-radius:18px;background:rgba(255,255,255,.55)}.learner-type-heading{display:flex;align-items:flex-start;gap:.8rem;margin-bottom:.8rem}.learner-type-heading h4{margin:.2rem 0 .25rem;font-size:1.2rem}.learner-type-heading p{margin:0;color:var(--muted);font-size:.88rem}.learner-type-group .learner-route{gap:.5rem}.learner-route-number{display:grid;place-items:center;width:2rem;height:2rem;border-radius:50%;background:#fff0e8;color:var(--accent-deep);font-weight:800}.learner-answered-count{color:var(--muted);font-size:.9rem}.learner-back{display:inline-flex;align-items:center;gap:.45rem;padding:.55rem .85rem;border:1px solid var(--line);border-radius:999px;background:var(--card);color:var(--ink);font:inherit;font-weight:700;cursor:pointer;box-shadow:0 5px 16px #17242b0d}.learner-back:hover,.learner-back:focus-visible{border-color:var(--accent);background:#fff8f3;transform:translateY(-1px)}.learner-navigation[hidden]{display:none}.learner-complete{margin-top:.75rem}
@media(max-width:680px){.learner-type-group{padding:.85rem}.learner-route-card{padding:.85rem}.learner-type-heading{gap:.6rem}}
/* T001 staging worksheet: all ten reviewed-draft items remain visible together. */
.t001-worksheet{max-width:900px}.t001-worksheet .learner-topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;border-bottom:1px solid var(--line);padding-bottom:1rem}.t001-worksheet-score,.t001-worksheet-progress{color:var(--muted);font-size:.9rem}.t001-worksheet-progress{margin-top:1.25rem}.t001-worksheet-list{display:grid;gap:.8rem}.t001-worksheet-item{padding:1rem 1.1rem;border:1px solid var(--line);border-radius:14px;background:var(--card)}.t001-worksheet-item.is-answered{background:#fffefa}.t001-worksheet-item-heading{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:start;gap:.7rem}.t001-worksheet-item h4{margin:.2rem 0 1rem;font-size:1.05rem;font-weight:700}.t001-worksheet-number{display:grid;place-items:center;width:1.8rem;height:1.8rem;border-radius:50%;background:#f1eee7;color:var(--muted);font-size:.8rem;font-weight:800}.t001-worksheet-marker{color:#b5bfbc;font-size:1.1rem;line-height:1.6}.t001-worksheet-item.is-answered .t001-worksheet-marker{color:#28734f}.t001-worksheet-item .learner-choice{margin:.4rem 0}.t001-worksheet-actions{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap;margin-top:.75rem}.t001-worksheet-actions .learner-result{margin:0}.t001-worksheet-actions .error{color:var(--accent-deep)}.t001-worksheet-actions button[hidden]{display:none}@media(max-width:680px){.t001-worksheet{padding-inline:.7rem}.t001-worksheet .learner-topbar{align-items:flex-start;flex-wrap:wrap}.t001-worksheet-score{margin-left:auto}.t001-worksheet-item{padding:.85rem}.t001-worksheet-item-heading{gap:.55rem}}
/* Two-level learner activity navigation: summaries stay calm until opened. */
.learner-type-groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(15rem,1fr));gap:1rem}.learner-type-card{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:.85rem;min-height:10rem;padding:1.15rem;border:1px solid var(--line);border-radius:18px;background:var(--card);color:var(--ink);font:inherit;text-align:left;cursor:pointer;box-shadow:0 8px 24px #17242b08}.learner-type-card:hover,.learner-type-card:focus-visible{border-color:var(--accent);box-shadow:0 14px 30px #17242b14;transform:translateY(-2px)}.learner-type-card .learner-route-copy{align-self:stretch;align-content:center}.learner-type-card .learner-route-status{grid-column:2}.learner-type-card>span:last-child{grid-column:3;grid-row:1 / span 2;color:var(--accent-deep)}.learner-type-heading{display:flex;align-items:flex-start;gap:.8rem}.learner-type-heading h3{margin:.2rem 0 .25rem}.learner-overview .learner-route{display:grid;gap:.5rem}.learner-overview .learner-heading{margin-bottom:1.5rem}@media(max-width:680px){.learner-type-groups{grid-template-columns:1fr}.learner-type-card{min-height:7rem;padding:1rem}}
.skip-link{position:absolute;left:-9999px;top:1rem;z-index:100;background:var(--card);color:var(--ink);padding:.7rem 1rem;border:1px solid var(--line);border-radius:8px}.skip-link:focus{left:1rem}