/* What this is: the original floating-observatory scene and accessible workrooms for Wonder Kitties. */
:root { color-scheme: dark; --night:#11142f; --deep:#1d2146; --ice:#d7f4ff; --muted:#b4bdd8; --copper:#f1bb8e; --violet:#a394e2; --magenta:#dc99cc; --ink:#182440; --paper:#f4f5f9; --line:#637098; font-family:ui-rounded,"Segoe UI",system-ui,sans-serif; }
/* Shared reading tokens retain this activity's celestial palette. The scenery remains outside the reading surfaces. */
:root[data-reading-theme=light] { color-scheme:light;--ink:#182440;--paper:#f4f5f9;--muted:#415674;--ice:#23364f;--canvas:#e6eaf4;--control:#f7f9ff;--line:#71839f;--focus:#794229;--night:#e6eaf4;--deep:#cbd4e7; }
:root[data-reading-theme=dark] { color-scheme:dark;--ink:#edf5ff;--paper:#222d4b;--muted:#b4bdd8;--ice:#d7f4ff;--canvas:#11142f;--control:#172341;--line:#91a9c7;--focus:#ffd19e; }
:root[data-reading-contrast=strong][data-reading-theme=light] { color-scheme:light;--ink:#000;--paper:#fff;--muted:#202020;--ice:#000;--canvas:#fff;--control:#fff;--line:#111;--focus:#462455;--night:#fff;--deep:#fff; }
:root[data-reading-contrast=strong][data-reading-theme=dark] { --ink:#fff;--paper:#0a1227;--muted:#e3edff;--ice:#fff;--canvas:#11142f;--control:#000;--line:#d6e9ff;--focus:#ffdaa9; }
* { box-sizing:border-box; }
[hidden] { display:none !important; }
body { margin:0; min-width:280px; background:var(--night); color:var(--ice); line-height:1.55; }
button,input,a { -webkit-tap-highlight-color:transparent; }
button,.button { min-height:44px; padding:10px 18px; font:inherit; font-weight:650; color:var(--ice); background:#293053; border:1px solid #6b769a; border-radius:12px; cursor:pointer; text-decoration:none; display:inline-flex; align-items:center; justify-content:center; gap:8px; }
button:hover,.button:hover { background:#3c456d; border-color:var(--ice); }
button:disabled { cursor:default; opacity:.52; }
button[aria-pressed=true] { background:#d6f0fb; color:var(--ink); border-color:#d6f0fb; }
button.primary,.button.primary { background:var(--copper); border-color:var(--copper); color:#292141; }
button.primary:hover,.button.primary:hover { background:#ffceb0; }
button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,[tabindex]:focus-visible { outline:3px solid #fcbe74; outline-offset:4px; }
a { color:var(--ice); }
h1,h2,h3,p { margin-top:0; }
h1,h2,h3 { line-height:1.2; }
h2 { font-size:1.5rem; font-weight:650; }
h3 { font-size:1.1rem; }
.skip { position:fixed; top:-100px; left:20px; z-index:20; background:var(--paper); color:var(--ink); padding:14px; }
.skip:focus { top:10px; }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }
.cosmos { position:fixed; inset:0; z-index:-1; overflow:hidden; pointer-events:none; background:radial-gradient(ellipse at 80% 15%,#47356780,transparent 48%),radial-gradient(ellipse at 20% 60%,#253a5f90,transparent 50%),#11142f; }
.cosmos:before { content:""; position:absolute; inset:0; opacity:.55; background-image:radial-gradient(circle,#c4d7ff 1px,transparent 1.5px),radial-gradient(circle,#aa91dd 1px,transparent 1.5px); background-size:127px 113px,197px 179px; background-position:32px 42px,88px 63px; }
.moon { position:absolute; border-radius:50%; background:radial-gradient(circle at 30% 30%,#ad99d4,#625082 60%,#352742); box-shadow:0 0 70px #ae93d324; }
.moon:after { content:""; position:absolute; border-radius:50%; background:#8c77ac; opacity:.4; width:22%; height:22%; top:18%; left:19%; box-shadow:50px 20px 0 -8px #574265,-12px 65px 0 -7px #635170; }
.moon-one { width:165px; height:165px; top:110px; right:-42px; }
.moon-two { width:62px; height:62px; top:740px; left:3%; }
.cloud { position:absolute; height:115px; width:470px; border-radius:50%; filter:blur(22px); background:#8c86bd18; transform:rotate(-12deg); }
.cloud-one { top:440px; right:1%; }
.cloud-two { top:1000px; left:-8%; background:#7491ba18; }
.orbit { position:absolute; border:1px solid #9787ba22; border-radius:50%; width:1300px; height:500px; transform:rotate(-25deg); }
.orbit-one { top:50px; left:10%; }
.orbit-two { top:720px; left:-50%; }
.topbar { max-width:1380px; margin:auto; padding:22px 36px; display:flex; align-items:center; justify-content:space-between; gap:16px; border-bottom:1px solid #8491bc28; }
.garden-link { text-decoration:none; min-height:44px; display:flex; align-items:center; gap:12px; font-size:.94rem; }
.brand { font-size:.68rem; font-weight:700; letter-spacing:.22em; color:var(--muted); }
.topbar button { font-size:.86rem; background:#202747; }
main { max-width:1260px; padding:0 38px 40px; margin:auto; }
.eyebrow { font-size:.73rem; font-weight:700; letter-spacing:.14em; text-transform:uppercase; color:var(--copper); margin-bottom:14px; }
.arrival { min-height:445px; display:grid; grid-template-columns:1fr 1.1fr; align-items:center; gap:30px; padding:30px 0 8px; }
.arrival h1 { font-family:Georgia,"Times New Roman",serif; font-weight:400; font-size:clamp(4rem,7vw,6.5rem); letter-spacing:-.045em; margin:0 0 20px; line-height:.91; }
.arrival h1 span { color:var(--copper); }
.intro { color:var(--muted); font-size:1.07rem; margin-bottom:20px; }
.gallery-link { background:transparent; border-color:#7682a6; font-size:.9rem; }
.observatory { height:370px; position:relative; align-self:center; isolation:isolate; }
.observatory-dome { position:absolute; width:345px; height:270px; border:1px solid #afbdd750; border-radius:175px 175px 16px 16px; left:50%; top:28px; transform:translateX(-50%); background:linear-gradient(130deg,#bccce418,transparent 40%,#a382d519); box-shadow:inset 20px 0 40px #b2c8df09; }
.observatory-dome:before,.observatory-dome:after { content:""; position:absolute; inset:0; border:1px solid #c0cbdf22; border-radius:50%; transform:scaleX(.64); }
.observatory-dome:after { transform:scaleX(.23); }
.arrival-creature { position:absolute; width:330px; height:268px; bottom:4px; left:7px; z-index:2; filter:drop-shadow(0 16px 14px #070c30aa); }
.dome-rings { position:absolute; top:19px; left:50%; width:430px; height:282px; border:1px solid #c3a57c70; border-radius:50%; transform:translateX(-50%) rotate(-21deg); }
.dome-rings:after { content:""; position:absolute; inset:12px -14px; border:1px solid #c3a57c35; border-radius:50%; transform:rotate(37deg); }
.dome-star { position:absolute; left:45%; top:-40px; color:#ffe0b9; font-size:47px; z-index:3; }
.observatory-deck { position:absolute; width:420px; height:65px; left:50%; top:277px; transform:translateX(-50%); border-radius:50%; background:linear-gradient(#7585ac,#303d64 38%,#121931 42%,#303a59 55%,#151a32); box-shadow:0 14px 40px #070b2d; border:1px solid #bbced864; z-index:-1; }
.observatory-deck:after { content:""; position:absolute; height:18px; width:380px; border-radius:50%; left:20px; bottom:-7px; border-bottom:1px solid #caa888; }
.hanging-crystal { position:absolute; width:19px; height:53px; background:linear-gradient(90deg,#aeaff477,#dce9ffa0 45%,#6466b98a 46%); clip-path:polygon(50% 0,100% 20%,100% 70%,50% 100%,0 70%,0 20%); }
.crystal-one { left:24%; top:321px; }
.crystal-two { left:52%; top:332px; height:65px; }
.crystal-three { right:21%; top:315px; }
.observatory-caption { position:absolute; top:356px; right:0; font-size:.58rem; letter-spacing:.2em; color:#9eadd0; }
.room-heading { display:flex; justify-content:space-between; align-items:baseline; gap:15px; padding-top:14px; margin-bottom:20px; }
.room-heading h2 { font-family:Georgia,serif; font-weight:400; font-size:1.7rem; margin-bottom:0; }
.room-heading p { font-size:.9rem; color:var(--muted); margin:0; }
.rooms { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:26px; }
.room { position:relative; border:1px solid #7584ae66; border-radius:28px 28px 18px 18px; background:linear-gradient(150deg,#343e60e0,#202748ee); padding:0 24px 24px; isolation:isolate; box-shadow:0 15px 30px #090d2555; }
.room:after { content:""; position:absolute; inset:auto 24px -10px; height:18px; border:1px solid #8390b555; border-radius:50%; z-index:-1; background:#263052; }
.room-art { height:161px; position:relative; overflow:hidden; border-bottom:1px solid #788bb342; margin:0 -24px 23px; border-radius:28px 28px 0 0; background:radial-gradient(ellipse at 50% 100%,#727cbd42,transparent 70%); }
.room-art:before { content:""; position:absolute; width:120px; height:120px; border:1px solid #a5b1d657; border-radius:50%; left:calc(50% - 60px); top:22px; }
.room-art:after { content:""; position:absolute; width:190px; height:25px; left:calc(50% - 95px); bottom:5px; border-radius:50%; background:#9aadda22; border:1px solid #b2c5e040; }
.room-art img { position:absolute; width:204px; height:166px; left:calc(50% - 102px); top:-3px; z-index:1; }
.room-add { background:linear-gradient(150deg,#433552ee,#272543ee); }
.room-subtract { background:linear-gradient(150deg,#263f5aee,#202840ee); }
.room-number { color:var(--copper); font-size:.68rem; letter-spacing:.12em; margin-bottom:8px; }
.room h3 { font-size:1.28rem; margin-bottom:8px; }
.room p:not(.room-number) { color:var(--muted); font-size:.92rem; min-height:45px; }
.room .room-progress { color:#d4e7f7; font-size:.78rem; margin:16px 0 11px; min-height:auto; }
.room button { width:100%; }
.room .room-example { background:transparent; border:0; margin-top:7px; color:var(--muted); font-size:.84rem; }
.practice-summary { margin-top:56px; padding:26px 0; border-top:1px solid #7383b044; display:grid; grid-template-columns:1fr auto; column-gap:20px; }
.practice-summary h2 { font-size:1.15rem; margin-bottom:9px; }
.practice-summary p { margin-bottom:0; color:var(--muted); font-size:.88rem; }
.practice-summary .eyebrow { margin-bottom:7px; }
.memory-note { grid-column:1/-1; margin-top:14px; }
.constellation-small { align-self:center; font-size:2rem; color:var(--copper); letter-spacing:15px; }
.work-nav { display:flex; justify-content:space-between; align-items:center; gap:12px; padding:25px 0; }
.work-nav p { color:var(--muted); font-size:.84rem; margin:0; }
.work-nav button { font-size:.87rem; background:transparent; }
.work-layout { display:grid; grid-template-columns:minmax(0,1fr) 252px; gap:26px; }
.work-main { min-width:0; }
.question-panel { padding:27px 30px; color:var(--ink); border-radius:20px; background:var(--paper); border-top:3px solid var(--copper); }
.question-panel .eyebrow { color:#775039; margin-bottom:10px; }
.question-panel h1 { font-size:1.75rem; font-weight:650; line-height:1.32; margin-bottom:14px; }
.question-equation { font-size:1.5rem; letter-spacing:.05em; margin-bottom:0; color:#4c5871; font-variant-numeric:tabular-nums; }
.tool-header { display:flex; align-items:center; justify-content:space-between; margin:22px 0 13px; gap:16px; }
.tool-header h2 { font-size:1rem; margin:0; }
.model-tabs { display:flex; gap:6px; }
.model-tabs button { font-size:.86rem; padding:9px 14px; }
.model-panel { background:#202848; border:1px solid #788bb463; border-radius:20px; padding:22px; min-height:180px; }
.tool-welcome { padding:14px; text-align:center; }
.tool-welcome h3 { font-size:1.3rem; }
.tool-welcome p { color:var(--muted); }
.model-intro { color:var(--muted); font-size:.88rem; margin-bottom:16px; }
.quantity-bar { display:flex; justify-content:space-between; align-items:center; gap:12px; }
.quantity-number { font-size:2rem; line-height:1; font-variant-numeric:tabular-nums; color:var(--copper); }
.quantity-bar p { margin:0; font-size:.93rem; }
.view-controls { display:flex; gap:6px; }
.view-controls button { font-size:.78rem; padding:8px 10px; }
.crystal-stage { perspective:1100px; position:relative; min-height:294px; overflow:auto; padding:23px 18px 20px; }
.crystal-stage:before { content:""; position:absolute; bottom:15px; left:5%; right:5%; height:120px; background:radial-gradient(ellipse,#6688b629,#6988b518 60%,transparent 65%); border-bottom:1px solid #93abd447; border-radius:50%; }
.blocks-world { display:flex; align-items:flex-end; gap:24px; min-height:246px; width:max-content; min-width:100%; transform-style:preserve-3d; transform:rotateX(-12deg) rotateY(-18deg); transform-origin:center; transition:transform .45s ease; padding:12px 30px 18px; }
.blocks-world.rotation-1 { transform:rotateX(-12deg) rotateY(72deg); }
.blocks-world.rotation-2 { transform:rotateX(-12deg) rotateY(162deg); }
.blocks-world.rotation-3 { transform:rotateX(-12deg) rotateY(252deg); }
.block-group { display:flex; align-items:flex-end; gap:13px; transform-style:preserve-3d; }
.ones-group { max-width:320px; flex-wrap:wrap; gap:13px; }
.cuboid { position:relative; transform-style:preserve-3d; width:24px; height:240px; flex:0 0 24px; }
.cuboid.cube { width:26px; height:26px; flex-basis:26px; }
.block-face { display:block; position:absolute; border:1px solid #c4f1ffbf; border-radius:1px; width:24px; min-height:0; height:240px; padding:0; background:repeating-linear-gradient(to bottom,transparent 0 22px,#d9f6ffbb 22px 24px),linear-gradient(100deg,#67bfd7d9,#9cdef1e6 49%,#61a6c7e6 50%); backface-visibility:hidden; transform-origin:center; box-shadow:inset 0 0 6px #e4fcff55; }
.block-face:hover,.block-face[aria-pressed=true] { filter:brightness(1.28); outline:2px solid var(--copper); outline-offset:0; }
.block-face.front { transform:translateZ(12px); }
.block-face.back { transform:rotateY(180deg) translateZ(12px); }
.block-face.left { transform:rotateY(-90deg) translateZ(12px); background:repeating-linear-gradient(to bottom,transparent 0 22px,#afc6efbb 22px 24px),#4c789f; }
.block-face.right { transform:rotateY(90deg) translateZ(12px); background:repeating-linear-gradient(to bottom,transparent 0 22px,#d8efffbb 22px 24px),#779fc9; }
.block-face.top,.block-face.bottom { height:24px; background:#c4ecff; }
.block-face.top { top:0; transform:rotateX(90deg) translateZ(12px); }
.block-face.bottom { bottom:0; transform:rotateX(-90deg) translateZ(12px); background:#446185; }
.cube .block-face { width:26px; height:26px; background:linear-gradient(130deg,#f1c0e3,#b187c9); border-color:#ffe0f5; }
.cube .front { transform:translateZ(13px); }.cube .back { transform:rotateY(180deg) translateZ(13px); }
.cube .left { transform:rotateY(-90deg) translateZ(13px); background:#956bb3; }.cube .right { transform:rotateY(90deg) translateZ(13px); background:#c49ed9; }
.cube .top { transform:rotateX(90deg) translateZ(13px); background:#f3d4ef; }.cube .bottom { transform:rotateX(-90deg) translateZ(13px); background:#73568b; }
.block-key { display:flex; gap:22px; align-items:center; font-size:.79rem; color:var(--muted); margin:2px 0 16px; }
.block-key .ten-dot { width:10px; height:21px; background:#90d3e5; display:inline-block; vertical-align:middle; margin-right:7px; }
.block-key .one-dot { width:13px; height:13px; background:#d2a4d6; display:inline-block; vertical-align:middle; margin-right:7px; }
.model-actions { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; }
.model-actions button { padding:9px 6px; font-size:.82rem; }
.exchange-actions { margin-top:8px; display:flex; gap:8px; flex-wrap:wrap; }
.exchange-actions button { flex:1; font-size:.83rem; padding:9px; }
.history-actions { display:flex; gap:8px; margin-top:13px; }
.history-actions button { font-size:.83rem; padding:8px 13px; background:transparent; }
.model-message { margin:14px 0 0; color:#f9d4b6; min-height:1.55em; font-size:.86rem; }
.selection-controls { display:flex; flex-wrap:wrap; gap:8px; align-items:end; border-top:1px solid #8093bc45; margin-top:12px; padding-top:13px; }
.selection-controls label { font-size:.79rem; display:flex; flex-direction:column; gap:5px; flex:1; min-width:110px; }
select { font:inherit; background:#293456; color:var(--ice); border:1px solid #8695b8; min-height:44px; border-radius:8px; padding:7px; max-width:100%; }
.selection-controls button { font-size:.81rem; }
.selection-caption { margin:10px 0 0; color:var(--muted); font-size:.8rem; }
.rail-window { overflow-x:auto; border:1px solid #8495bc55; background:#151e3a; border-radius:13px; margin:18px 0 14px; padding:10px 0; scrollbar-color:#97bad9 #202848; }
.rail { display:flex; align-items:end; width:4646px; height:115px; padding:0 23px; position:relative; }
.rail:before { content:""; position:absolute; left:23px; right:23px; bottom:48px; border-top:3px solid #a8d8ec; }
.rail-tick { flex:0 0 46px; position:relative; height:74px; text-align:center; color:#adbfda; font-size:.78rem; font-variant-numeric:tabular-nums; }
.rail-tick:before { content:""; position:absolute; bottom:42px; height:10px; left:50%; border-left:1px solid #adc3db; }
.rail-tick.major:before { height:20px; border-width:2px; }.rail-tick.major { color:#eef6ff; }
.tick-number { position:absolute; left:0; right:0; bottom:9px; }
.rail-tick.start:after { content:"S"; position:absolute; left:calc(50% - 12px); bottom:56px; font-size:.65rem; color:#171f39; background:#b8a5df; border-radius:50%; width:24px; height:24px; padding-top:4px; }
.rail-tick.current:before { border:0; width:16px; height:16px; background:var(--copper); transform:rotate(45deg); left:calc(50% - 8px); bottom:42px; }
.rail-tick.current:after { content:"NOW"; position:absolute; bottom:65px; left:calc(50% - 18px); background:var(--copper); color:#171f39; border-radius:4px; font-size:.62rem; width:36px; }
.rail-tick.start.current:after { content:"S / NOW"; width:50px; left:calc(50% - 25px); }
.rail-legend { color:var(--muted); font-size:.79rem; margin-bottom:14px; }
.line-facts { background:#151e3a; border-radius:10px; padding:12px 14px; margin:14px 0; font-size:.87rem; }
.line-facts p { margin:0 0 5px; }.line-facts p:last-child { margin:0; }
.jump-list { display:flex; flex-wrap:wrap; gap:7px; padding:0; margin:0; list-style:none; }
.jump-list li { border:1px solid #8aa1c161; border-radius:7px; padding:5px 9px; font-size:.82rem; }
.jump-detail { color:var(--muted); font-size:.79rem; margin:11px 0 0; }
.answer-panel { margin-top:20px; background:var(--paper); color:var(--ink); padding:23px 28px; border-radius:20px; }
.answer-panel label { font-weight:700; margin-right:10px; }.answer-role { color:#5f687d; font-size:.82rem; }
.answer-row { display:flex; gap:12px; margin-top:11px; }
.answer-row input { min-width:0; width:132px; min-height:52px; border:2px solid #8995b0; border-radius:10px; padding:6px 12px; font:600 1.7rem ui-rounded,"Segoe UI",sans-serif; background:white; color:var(--ink); }
.answer-row button { flex:1; }.answer-panel #answerRange { font-size:.78rem; color:#5e6880; margin:10px 0 0; }
.feedback { margin-top:18px; border-top:1px solid #b6c1d4; padding-top:15px; font-size:.92rem; }.feedback strong { display:block; margin-bottom:6px; }.feedback p { margin-bottom:6px; }
.feedback.correct strong { color:#2a6463; }.feedback.incorrect strong,.feedback.invalid strong { color:#7d4932; }
.answer-actions { display:flex; flex-wrap:wrap; gap:8px; margin-top:12px; }.answer-actions:empty { display:none; }.answer-actions button:not(.primary) { background:#dce4ee; color:var(--ink); }
.companion-panel { align-self:start; border:1px solid #7886b74d; border-radius:100px 100px 18px 18px; background:linear-gradient(#54457361,#222a48e8 300px); padding:25px 22px; text-align:center; }
.change-guide { background:transparent; font-size:.78rem; border-color:#b4a0d0; padding:8px 11px; }
.companion-image { height:175px; margin:10px -16px 2px; }.companion-image img { width:100%; height:100%; object-fit:contain; filter:drop-shadow(0 8px 10px #09112a70); }
.companion-panel .eyebrow { font-size:.62rem; margin:8px 0; }.companion-panel h2 { font-family:Georgia,serif; font-weight:400; font-size:1.6rem; margin-bottom:10px; }
.companion-panel p { font-size:.84rem; color:var(--muted); }.companion-panel button:not(.change-guide) { width:100%; margin-bottom:9px; font-size:.82rem; padding:10px; }
.companion-panel .guide-help { color:var(--ink); background:#c4dce9; border-color:#c4dce9; }
.help-divider { border-top:1px solid #7e88aa60; margin:17px 0; }.companion-panel h3 { margin-bottom:12px; }.practice-footnote { margin-top:14px; margin-bottom:0; font-size:.72rem !important; }
dialog { color:var(--ice); background:#1c2645; border:1px solid #a3b4d0; border-radius:24px; padding:30px; max-width:960px; width:calc(100% - 40px); max-height:90vh; overflow:auto; box-shadow:0 25px 80px #060a23; }
dialog::backdrop { background:#080d24c9; backdrop-filter:blur(5px); }.dialog-heading { display:flex; gap:15px; justify-content:space-between; align-items:start; }.dialog-heading h2 { font-family:Georgia,serif; font-weight:400; font-size:2rem; margin-bottom:14px; }.dialog-heading .eyebrow { margin-bottom:8px; }
.creature-gallery { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:15px; }
.habitat { min-width:0; text-align:left; display:flex; flex-direction:column; padding:15px; background:#293655; border-radius:65px 65px 14px 14px; align-items:stretch; }
.habitat img { width:100%; height:137px; object-fit:contain; }.habitat strong { font-size:1.02rem; }.habitat .species { color:var(--copper); font-size:.76rem; font-weight:500; margin:4px 0 7px; }.habitat .habitat-description { font-size:.76rem; font-weight:400; color:var(--muted); line-height:1.4; }
.habitat[aria-pressed=true] .species,.habitat[aria-pressed=true] .habitat-description { color:#374c6a; }.habitat .choose-label { font-size:.79rem; margin-top:auto; padding-top:12px; }
#exampleDialog { max-width:650px; }#exampleSteps { padding-left:25px; }#exampleSteps li { padding:11px 4px; }.example-equation { font-size:2rem; color:var(--copper); background:#151d37; padding:18px; border-radius:12px; }.task-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:10px; }.task-list button { justify-content:start; text-align:left; font-size:.86rem; }.task-list .task-done { margin-left:auto; color:var(--copper); }
.finish-panel { max-width:720px; margin:50px auto; text-align:center; padding:35px; border:1px solid #9aabd76b; border-radius:150px 150px 22px 22px; background:linear-gradient(#433961b0,#202747); }.finish-panel h1 { font:400 2.7rem Georgia,serif; }.finish-panel p { color:var(--muted); }.finish-panel .eyebrow { color:var(--copper); }.finish-actions { display:flex; justify-content:center; gap:12px; flex-wrap:wrap; margin:25px 0; }
.completion-sky { height:240px; position:relative; max-width:400px; margin:auto; }.completion-sky img { position:absolute; width:280px; height:228px; left:calc(50% - 140px); top:5px; }.completion-sky span { position:absolute; color:#ffcfa5; font-size:25px; }.completion-sky span:nth-child(1) { top:10px; left:18%; }.completion-sky span:nth-child(2) { top:45px; right:12%; }.completion-sky span:nth-child(3) { top:125px; left:5%; }.completion-sky span:nth-child(4) { top:166px; right:4%; }.completion-sky span:nth-child(5) { top:0; left:49%; }
.completion-sky.celebrate { animation:constellation-arrive 1.4s ease-out 1; }.completion-sky.celebrate img { animation:creature-arrive 1.4s ease-out 1; }
/* Articulated completion captions stay in normal flow above the visit heading. */
.completion-sky:has(.rig-svg) { height:auto; }
.completion-sky:has(.rig-svg)>.character-stage { position:relative; inset:auto; width:min(280px,100%); height:auto; margin:auto; }
.completion-sky:has(.rig-svg)>.character-stage>.rig-svg { height:230px; }
.completion-sky:has(.rig-svg) .character-caption>span { position:static; inset:auto; color:inherit; font-size:inherit; }
@keyframes constellation-arrive { from { opacity:.2; filter:brightness(1.8); } to { opacity:1; filter:brightness(1); } }
@keyframes creature-arrive { from { transform:translateY(15px); } to { transform:translateY(0); } }
.companion-image .respond { animation:soft-hop 1s ease-out 1; }
.companion-image .creature-luma.respond { animation:fairy-lift 1s ease-out 1; }
.companion-image .creature-driftwhisker.respond { animation:glider-hello 1s ease-out 1; }
.companion-image .creature-emberwing.respond { animation:wing-hello 1s ease-out 1; }
.companion-image .creature-ripplegill.respond { animation:crystal-glow 1s ease-out 1; }
.companion-image .creature-cinderplume.respond { animation:phoenix-rise 1s ease-out 1; }
.companion-image .creature-velori.respond { animation:ribbon-sway 1s ease-out 1; }
.companion-image .creature-tessel.respond { animation:crystal-bow 1s ease-out 1; }
@keyframes soft-hop { 0%,100% { transform:translateY(0); } 40% { transform:translateY(-9px) scale(1.02,.98); } }
@keyframes fairy-lift { 0%,100% { transform:translateY(0); filter:drop-shadow(0 8px 10px #09112a70); } 45% { transform:translateY(-13px); filter:drop-shadow(0 0 15px #f0cfff); } }
@keyframes glider-hello { 0%,100% { transform:translateX(0) rotate(0); } 45% { transform:translateX(11px) rotate(-3deg); } }
@keyframes wing-hello { 0%,100% { transform:rotate(0) scale(1); } 45% { transform:rotate(-4deg) scale(1.04); } }
@keyframes crystal-glow { 0%,100% { filter:drop-shadow(0 8px 10px #09112a70); } 50% { filter:drop-shadow(0 0 17px #a9ecff); } }
@keyframes phoenix-rise { 0%,100% { transform:translateY(0) scale(1); } 40% { transform:translateY(-11px) scale(1.04,1.02); } 65% { transform:translateY(-5px) scale(.99,1.02); } }
@keyframes ribbon-sway { 0%,100% { transform:translate(0,0) rotate(0); } 30% { transform:translate(-8px,-5px) rotate(-4deg); } 65% { transform:translate(6px,-3px) rotate(3deg); } }
@keyframes crystal-bow { 0%,100% { transform:translateY(0) rotate(0) scale(1); } 45% { transform:translateY(5px) rotate(-5deg) scale(1.025,.96); } 70% { transform:translateY(2px) rotate(-2deg) scale(1.01,.99); } }
html[data-still=true] *,html[data-still=true] *:before,html[data-still=true] *:after { animation:none !important; transition:none !important; scroll-behavior:auto !important; }
.load-notice { padding:70px 20px; max-width:650px; }.load-notice h1 { font-size:2rem; }.load-notice .button { margin-bottom:10px; }
footer { text-align:center; padding:26px 20px; font-size:.75rem; color:#9ba9c9; border-top:1px solid #6e80ab30; }
.topbar { flex-wrap:wrap; }.topbar .brand { margin-right:auto; }.topbar>button { max-width:100%;white-space:normal; }
.localized-copy { display:contents; }.localized-copy>[lang] { white-space:normal; }
html[data-language=both] .localized-copy>[lang=th] { display:block;font-size:.94em;margin-top:.15em; }
.localized-copy>[lang=th] { letter-spacing:normal;word-spacing:normal; }
.language-buttons,.save-buttons { display:flex;flex-wrap:wrap;gap:10px;margin:15px 0 25px; }.save-buttons button { flex:1 1 210px; }
#optionsDialog,#parentNotes { max-width:780px; }#optionsDialog section { margin-bottom:25px; }#parentNotes p { line-height:1.75; }#parentNotes h3 { margin-top:25px; }#parentNotes li { margin:12px 0; }
#saveStatus { padding:14px;border:1px solid #8fa3c4;border-radius:10px;background:#172440; }
.reading-comfort { --ink:#edf5ff;--paper:#24304d;--control:#172440;--line:#91a9c7;--muted:#c4d4e7;color:#edf5ff; }
#printDialog { max-width:1080px; }#printRecord { background:#fff;color:#172038;padding:28px;border-radius:8px;font-size:14px; }#printRecord h1 { color:#172038;font-size:26px; }#printRecord table { width:100%;border-collapse:collapse;table-layout:fixed;margin:20px 0; }#printRecord th,#printRecord td { text-align:left;border:1px solid #79859a;padding:8px;overflow-wrap:anywhere;vertical-align:top; }#printRecord th { background:#edf1f7; }#printRecord .visit-records { font-size:12px; }#printRecord tr { break-inside:avoid; }.print-actions { margin:12px 0 20px; }
:root[data-reading-theme=dark] .question-panel .eyebrow { color:#f4c59e; }:root[data-reading-theme=dark] .question-equation,:root[data-reading-theme=dark] .answer-role,:root[data-reading-theme=dark] .answer-panel #answerRange { color:#c2d3e9; }:root[data-reading-theme=dark] .answer-row input { background:#172440;color:#fff; }:root[data-reading-theme=dark] .feedback.correct strong { color:#b7e5dc; }:root[data-reading-theme=dark] .feedback.incorrect strong,:root[data-reading-theme=dark] .feedback.invalid strong { color:#ffd1aa; }
:root[data-reading-size]:not([data-reading-size=default]) .work-layout { grid-template-columns:1fr; }:root[data-reading-size]:not([data-reading-size=default]) .companion-panel { border-radius:25px;max-width:100%; }:root[data-reading-size]:not([data-reading-size=default]) .quantity-bar,:root[data-reading-size]:not([data-reading-size=default]) .tool-header { flex-wrap:wrap; }:root[data-reading-size]:not([data-reading-size=default]) .model-actions { grid-template-columns:repeat(2,minmax(0,1fr)); }:root[data-reading-size]:not([data-reading-size=default]) .room { min-width:0; }:root[data-reading-size]:not([data-reading-size=default]) .room-art { height:165px; }:root[data-reading-size]:not([data-reading-size=default]) .rooms { grid-template-columns:1fr; }:root[data-reading-size]:not([data-reading-size=default]) .room-heading { flex-wrap:wrap; }
:root[data-reading-size=largest] .rail-tick { font-size:14px; }:root[data-reading-size=largest] .rail-tick:after { font-size:10px; }:root[data-reading-size=largest] .arrival h1 { font-size:4rem; }.rail-tick:after { font-family:"Segoe UI",system-ui,sans-serif; }
html[data-language=th] .rail-tick.start:after { content:"เริ่ม"; }html[data-language=th] .rail-tick.current:after { content:"ตอนนี้";width:42px;left:calc(50% - 21px); }html[data-language=th] .rail-tick.start.current:after { content:"เริ่ม/ตอนนี้";width:58px;left:calc(50% - 29px); }
html[data-language=both] .rail-tick.start:after { content:"S/เริ่ม";width:42px;left:calc(50% - 21px); }html[data-language=both] .rail-tick.current:after { content:"NOW/ตอนนี้";width:64px;left:calc(50% - 32px); }html[data-language=both] .rail-tick.start.current:after { content:"S/NOW เริ่ม/ตอนนี้";width:90px;left:calc(50% - 45px); }
@media(max-width:720px) { .topbar .brand { display:none; }.topbar>button { flex:1 1 140px;font-size:.8rem; }.topbar .garden-link { flex:1 1 150px; }.model-tabs { flex-wrap:wrap; }.model-tabs button { flex:1; }.quantity-bar p { min-width:0; }.view-controls { flex-wrap:wrap; }.answer-row { flex-wrap:wrap; }.answer-row input { flex:1 1 90px; }.answer-row button { flex:1 1 170px; }.room { grid-template-columns:1fr; }.room-art { grid-row:auto;grid-column:1;justify-self:center; }.room-number,.room h3,.room p,.room button { grid-column:1; }.creature-gallery { grid-template-columns:1fr; }.habitat img { height:180px; }.dialog-heading { flex-wrap:wrap; }.dialog-heading button { margin-left:auto; }.companion-panel { display:block; }.companion-image { max-width:230px;height:180px;margin:auto; }.companion-panel .change-guide { width:100%; }.selection-controls label { flex:1 1 160px; }#printRecord { padding:15px; }#printDialog { padding:14px; } }
@media print {
  @page { margin:14mm; }
  html,body { background:#fff!important;color:#000!important;font-size:10pt!important;min-width:0!important; }
  body>*:not(#printDialog) { display:none!important; }
  #printDialog { display:block!important;position:static!important;inset:auto!important;width:auto!important;max-width:none!important;max-height:none!important;margin:0!important;padding:0!important;border:0!important;border-radius:0!important;background:#fff!important;overflow:visible!important;box-shadow:none!important; }
  #printDialog>.dialog-heading,#printDialog>.print-actions { display:none!important; }
  #printRecord { padding:0!important;font-size:10pt!important;color:#000!important;background:#fff!important;border:0!important; }
  #printRecord table { width:100%;table-layout:fixed; }#printRecord th,#printRecord td { color:#000!important;background:#fff!important;border:1px solid #555!important;padding:5pt!important; }#printRecord .visit-records { font-size:8pt!important; }#printRecord thead { display:table-header-group; }#printRecord tr { break-inside:avoid;page-break-inside:avoid; }#printRecord p { margin:6pt 0; }#printRecord h1 { margin:0 0 8pt;font-size:20pt!important; }#printRecord .localized-copy>[lang=th] { line-height:1.5; }dialog::backdrop { display:none!important; }
}
@media(prefers-reduced-motion:reduce) { *,*:before,*:after { animation:none !important; transition:none !important; scroll-behavior:auto !important; } }
@media(min-width:1500px) { main { max-width:1340px; }.arrival { min-height:465px; }.rooms { gap:34px; } }
@media(max-width:1000px) { .brand { display:none; }.topbar { padding:18px 26px; }main { padding:0 26px 35px; }.arrival { grid-template-columns:1fr 1fr; }.observatory { transform:scale(.9); }.rooms { gap:16px; }.room { padding:0 18px 20px; }.room-art { margin-left:-18px; margin-right:-18px; }.work-layout { grid-template-columns:minmax(0,1fr) 216px; gap:17px; }.companion-panel { padding:24px 15px; }.tool-header { display:block; }.tool-header h2 { margin-bottom:10px; }.quantity-bar { flex-wrap:wrap; }.model-panel { padding:17px; }.creature-gallery { grid-template-columns:repeat(2,minmax(0,1fr)); }.habitat { border-radius:60px 60px 14px 14px; }.habitat img { height:155px; } }
@media(max-width:720px) { .arrival { min-height:0; gap:8px; padding-top:35px; }.arrival .eyebrow { font-size:.61rem; }.arrival h1 { font-size:4rem; }.intro { font-size:.92rem; }.observatory { transform:scale(.65); width:320px; margin-left:-70px; margin-right:-60px; height:350px; }.observatory-caption { display:none; }.room-heading { display:block; margin:20px 0; }.room-heading p { margin-top:8px; }.rooms { grid-template-columns:1fr; gap:27px; }.room { display:grid; grid-template-columns:120px 1fr; column-gap:20px; padding:20px; border-radius:23px; }.room-art { grid-row:1/7; margin:0; border:0; border-radius:50%; width:120px; height:145px; align-self:center; }.room-art img { width:165px; height:135px; left:-22px; top:6px; }.room-art:before { width:100px; height:100px; left:10px; }.room-art:after { width:115px; left:0; }.room-number,.room h3,.room p,.room button { grid-column:2; }.room p:not(.room-number) { min-height:0; margin-bottom:9px; }.room .room-progress { margin:4px 0 10px; }.room .room-example { margin:4px 0 0; }.work-layout { grid-template-columns:1fr; }.companion-panel { border-radius:24px; display:grid; grid-template-columns:120px 1fr; column-gap:20px; text-align:left; padding:22px; }.companion-image { grid-column:1; grid-row:1/5; height:130px; margin:0; align-self:center; }.companion-panel .change-guide { grid-column:2; width:100%; justify-self:start; }.companion-panel .eyebrow,.companion-panel h2,.companion-panel #guideDescription { grid-column:2; }.companion-panel .guide-help,.help-divider,.companion-panel h3,.companion-panel #helpText,.companion-panel #hint,.companion-panel #example,.companion-panel #fresh,.practice-footnote { grid-column:1/-1; }.companion-panel #guideDescription { margin-bottom:12px; }.companion-panel .eyebrow { margin-top:12px; }.work-nav { flex-wrap:wrap; padding:20px 0; }.work-nav p { order:3; width:100%; }.question-panel { padding:23px; }.question-panel h1 { font-size:1.45rem; }.finish-panel { padding:25px; }.finish-panel h1 { font-size:2.2rem; }.task-list { grid-template-columns:1fr; } }
@media(max-width:420px) { main { padding:0 16px 28px; }.topbar { padding:12px 16px; gap:8px; }.topbar button,.garden-link { font-size:.8rem; }.topbar button { padding:8px 10px; }.arrival { grid-template-columns:1fr; position:relative; padding:36px 0 24px; }.arrival-copy { z-index:2; padding-right:20%; }.arrival h1 { font-size:4.6rem; }.arrival .eyebrow { max-width:190px; }.observatory { position:absolute; right:-60px; top:35px; transform:scale(.51); opacity:.62; width:310px; margin:0; z-index:0; }.intro { max-width:205px; }.gallery-link { margin-top:6px; }.room-heading h2 { font-size:1.5rem; }.room { grid-template-columns:90px 1fr; gap:12px; padding:17px; }.room-art { width:90px; height:115px; }.room-art img { width:134px; height:110px; left:-22px; }.room-art:before { width:80px; height:80px; left:5px; }.room-art:after { width:86px; }.room h3 { font-size:1.12rem; }.room p:not(.room-number) { font-size:.81rem; }.room button { padding:9px; font-size:.86rem; }.practice-summary { grid-template-columns:1fr; margin-top:40px; }.constellation-small { display:none; }.question-panel { padding:20px; }.model-panel { padding:14px; }.quantity-bar { align-items:start; }.view-controls { width:100%; margin-top:8px; }.view-controls button { flex:1; }.crystal-stage { min-height:290px; padding-left:4px; padding-right:4px; }.blocks-world { padding-left:15px; gap:15px; }.model-actions { grid-template-columns:repeat(2,minmax(0,1fr)); }.answer-panel { padding:20px; }.answer-row { gap:8px; }.answer-row input { width:90px; }.answer-row button { padding:10px; font-size:.84rem; }.answer-role { display:block; margin-top:5px; }.companion-panel { grid-template-columns:95px 1fr; padding:18px; gap:0 14px; }.companion-panel h2 { font-size:1.45rem; }.companion-image { height:115px; }.creature-gallery { gap:10px; }.habitat { padding:12px; border-radius:50px 50px 12px 12px; }.habitat img { height:105px; }.habitat strong { font-size:.91rem; }.habitat .habitat-description { font-size:.73rem; }dialog { width:calc(100% - 24px); padding:20px; border-radius:17px; }.dialog-heading h2 { font-size:1.45rem; }.dialog-heading button { padding:8px 10px; font-size:.8rem; }.completion-sky { height:215px; }.completion-sky img { width:250px; height:203px; left:calc(50% - 125px); }.finish-panel { padding:25px 18px; margin-top:30px; } }
/* B-130 responsive reading overrides follow the original scene breakpoints. */
.arrival { overflow:clip;overflow-clip-margin:8px; }
.load-notice [lang] { display:block; }
.skip { top:12px;max-width:calc(100vw - 40px);transform:translateY(calc(-100% - 24px)); }
.skip:focus { top:12px;transform:translateY(0); }
html[data-language=both] button,html[data-language=both] .button { flex-direction:column;gap:1px; }
html[data-language=both] button>.localized-copy,html[data-language=both] .button>.localized-copy { display:block;width:100%; }
html[data-language=both] .localized-copy>[lang=th] { display:block; }
@media(max-width:720px) {
 .topbar>button { flex:1 1 100%; } .topbar .garden-link { flex:1 1 100%; }
 .companion-panel { display:block;border-radius:24px;text-align:left; } .companion-image { height:180px;max-width:240px;margin:10px auto; }
 .room { grid-template-columns:1fr; } .room-art { grid-row:auto;grid-column:1;justify-self:center;margin:auto; } .room-number,.room h3,.room p,.room button { grid-column:1; }
 .model-tabs,.view-controls,.history-actions { flex-direction:column; } .model-tabs button,.view-controls button,.history-actions button { width:100%; }
 .model-actions { grid-template-columns:1fr; } .exchange-actions { flex-direction:column; } .exchange-actions button { width:100%; }
 .creature-gallery { grid-template-columns:1fr; }.habitat img { height:180px; }
 .dialog-heading { flex-direction:column; } .dialog-heading button { margin-left:0;width:100%; }
 .crystal-stage { min-height:330px; }.blocks-world { transform-origin:150px 200px; }
 :root[data-reading-size=largest] .model-actions { grid-template-columns:1fr; }
 :root[data-reading-size=largest] .rooms .room-art { width:min(220px,100%);height:180px;border-radius:20px; }
 :root[data-reading-size=largest] .room-art img { width:100%;height:150px;left:0;top:0;object-fit:contain; }
 :root[data-reading-size=largest] .room-art:before { width:120px;height:120px;left:calc(50% - 60px); }
 :root[data-reading-size=largest] .room-art:after { width:190px;left:calc(50% - 95px); }
}
@media(max-width:420px) {
 :root[data-reading-size=largest] .arrival-copy { padding-right:0; }
 :root[data-reading-size=largest] .arrival h1 { font-size:2.2rem; }
 :root[data-reading-size=largest] .intro { max-width:none; }
}

/* The existing selected-face model drives a view of the same chosen block.
   The inverse world angles expose every face without changing quantity. */
.cuboid.is-selected { z-index:2; transform:rotateY(var(--selection-turn)) rotateX(12deg) rotateY(var(--selected-face-y)) rotateX(var(--selected-face-x));transition:transform .35s ease; }
.cuboid.is-selected .block-face[aria-pressed=true] { outline:3px solid var(--copper);outline-offset:2px;box-shadow:inset 0 0 0 2px #182440; }
.selection-view-note { color:var(--muted);font-size:.8rem;margin:.45rem 0 0; }
.representation-guide { margin:1.2rem 0 2rem;padding:1.2rem;border:1px solid var(--scene-border,var(--line));border-radius:18px;background:var(--scene-panel,var(--paper));color:var(--ice); }
.representation-guide p:last-child { margin-bottom:0; }
:root[data-reading-theme=light] .room-number,:root[data-reading-theme=light] .room-example { color:var(--ice); }
:root[data-reading-theme=light] :is(button,a,input,select,[tabindex]):focus-visible { outline-color:var(--focus); }

.work-nav { flex-wrap:wrap; }
.tool-explanation { color:var(--muted);font-size:.9rem; }