.ls-tool{--ls-accent:#2a7e98}.ls-tool h2,.ls-tool h3{margin:0 0 12px}.ls-tool button,.ls-tool select,.ls-tool textarea{font:inherit}.ls-tool button{min-height:44px;cursor:pointer;border:1px solid var(--line-color);border-radius:12px;padding:10px 14px;background:var(--main-bg-color);color:var(--main-color);line-height:1.5}.ls-tool button:hover:not(:disabled){border-color:var(--ls-accent)}.ls-tool button:focus-visible,.ls-tool canvas:focus-visible{outline:3px solid #2d839d;outline-offset:3px}.ls-tool button[aria-pressed=true]{border-color:var(--ls-accent);box-shadow:inset 0 0 0 1px var(--ls-accent);background:var(--input-bg)}.ls-tool button:disabled{opacity:.5;cursor:default}.ls-missions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0}.ls-missions button{text-align:left}.ls-missions span,.ls-missions small{display:block;font-size:12px;color:var(--main-color)}.ls-missions b{display:block;margin:8px 0;font-size:16px}.ls-progress{padding:10px 14px;border-left:4px solid #64a085;background:var(--input-bg);line-height:1.7}.ls-discover{margin:24px 0 18px;line-height:1.9}.ls-eyebrow{display:block;color:var(--ls-accent);font-weight:600;font-size:13px;margin-bottom:8px}.ls-visual{position:relative;border:1px solid var(--line-color);border-radius:16px;overflow:hidden;background:#f2f8fa}.ls-visual canvas{display:block;width:100%;height:auto;touch-action:manipulation}.ls-fullscreen{position:absolute;right:8px;top:8px;padding:5px 9px!important;min-height:32px!important;font-size:12px!important;background:white!important;color:#284653!important}.ls-visual:fullscreen{border:0;border-radius:0;display:flex;align-items:center;justify-content:center;background:#182f48}.ls-visual:fullscreen canvas{width:min(100vw,240vh);max-height:100vh;object-fit:contain}.ls-observe{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:10px;margin:16px 0 24px}.ls-observe button{text-align:left;align-self:start}.ls-observe b,.ls-observe span{display:block}.ls-observe span{font-size:13px;line-height:1.7;margin-top:6px}.ls-play,.ls-challenge,.ls-reflect{padding:22px 0;border-top:1px solid var(--line-color);line-height:1.8}.ls-play label,.ls-reflect label{display:block;margin:14px 0}.ls-play input[type=range]{width:100%;min-height:36px}.ls-play output{font-weight:700}.ls-chip-list,.ls-options,.ls-toolbar{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}.ls-options{flex-direction:column}.ls-options button{text-align:left}.ls-explanation{padding:14px;background:var(--input-bg);border-left:4px solid #67a286;border-radius:4px}.ls-bins,.ls-shop{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:14px 0}.ls-bins small{display:block;min-height:32px;font-size:12px;margin-top:8px}.ls-bins button{border-style:dashed;min-height:100px}.ls-match{display:grid;grid-template-columns:1fr 1fr;gap:14px}.ls-match>div{display:flex;flex-direction:column;gap:10px}.ls-match button{flex:1;overflow-wrap:anywhere}.ls-shop>div{padding:12px;border:1px solid var(--line-color);border-radius:10px}.ls-shop>div>div{display:flex;gap:12px;align-items:center;margin-top:10px}.ls-number-row{display:flex;gap:8px;flex-wrap:wrap}.ls-number-row b{display:flex;align-items:center;justify-content:center;width:44px;height:50px;border-radius:10px;background:var(--input-bg)}.ls-pixels{display:grid;grid-template-columns:repeat(8,1fr);gap:2px;width:min(100%,400px);margin:16px auto}.ls-pixels button{aspect-ratio:1;min-height:0;padding:0;border-radius:2px;border-color:#9ab1b7}.ls-tool textarea{width:100%;max-width:100%;box-sizing:border-box;resize:vertical;line-height:1.7;background:var(--input-bg);color:var(--main-color)}#ls-code{font-family:Consolas,monospace;letter-spacing:3px}#ls-feedback{min-height:2em;font-weight:600}#ls-print-report{display:none}html[data-theme=dark] .ls-tool{--ls-accent:#7ac0d5}@media(max-width:600px){.ls-missions{grid-template-columns:1fr;gap:8px}.ls-missions button{display:grid;grid-template-columns:50px 1fr 55px;gap:8px;align-items:center;padding:10px}.ls-missions b{margin:0;font-size:14px}.ls-missions small{text-align:right}.ls-observe{grid-template-columns:1fr}.ls-match{gap:8px}.ls-match button{font-size:13px;padding:8px}.ls-play,.ls-challenge,.ls-reflect{padding:18px 0}.ls-shop{grid-template-columns:1fr}.ls-toolbar button{flex:1 1 44%}}@media print{.ls-tool .ls-missions,.ls-tool .ls-progress,.ls-tool .ls-discover,.ls-tool .ls-visual,.ls-tool .ls-observe,.ls-tool .ls-play,.ls-tool .ls-challenge,.ls-tool .ls-reflect,.ls-tool .ls-toolbar{display:none!important}#ls-print-report{display:block!important;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.8;font:12pt sans-serif;color:#111}.ls-tool{box-shadow:none!important;border:0!important;padding:0!important}}
.ls-summary{padding:12px 14px;line-height:1.8;font-size:16px;background:var(--input-bg);border-radius:10px;overflow-wrap:anywhere}@media print{.ls-summary{display:none!important}}

/* Keep the changing diagram next to its controls; no nested scrolling. */
.ls-section-nav{display:flex;flex-wrap:wrap;gap:8px;margin:12px 0}.ls-section-nav button{padding:6px 12px;min-height:40px}.ls-workspace{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:24px;align-items:start}.ls-preview{position:sticky;top:100px;min-width:0}.ls-controls{min-width:0}.ls-controls .ls-play{border-top:0;padding-top:0}.ls-controls .ls-observe{grid-template-columns:repeat(2,minmax(0,1fr));margin-bottom:0}.ls-workspace,.ls-challenge,.ls-reflect{scroll-margin-top:100px}.ls-missions{margin:12px 0;gap:8px}.ls-missions b{margin:4px 0}.ls-discover{margin:14px 0}.ls-discover p{margin:8px 0}.ls-progress{margin:8px 0}.ls-preview .ls-summary{font-size:14px;margin:10px 0;line-height:1.6}
@media(max-width:1100px){.ls-workspace{grid-template-columns:1fr;gap:12px}.ls-preview{position:static}.ls-visual:not(:fullscreen) canvas{width:min(100%,576px);height:auto;margin-inline:auto}.ls-controls .ls-play{padding-bottom:10px}.ls-controls .ls-observe{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.ls-missions{grid-template-columns:repeat(3,minmax(0,1fr))}.ls-missions button{display:block;padding:8px}.ls-missions span{font-size:11px}.ls-missions b{font-size:13px;margin:4px 0}.ls-missions small{text-align:left;font-size:11px}.ls-section-nav button{flex:1;padding:6px;font-size:13px}.ls-controls .ls-observe{gap:8px}.ls-discover{line-height:1.7}.ls-discover h2{font-size:19px}}
@media(max-height:600px){.ls-preview{position:static}}
@media print{.ls-section-nav,.ls-workspace{display:none!important}}