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#2b262014;--lip:#2b262024;font-size:var(--t-body)}.hub-student.band-big{--t-body:20px;--t-title:26px;--t-display:32px}.hub-student .mock-banner{font-size:var(--t-small)}.hub-student button,.hub-student .kid-button{min-height:var(--target)}.k-card,.hub-student .problem-card,.hub-student .work-card,.hub-student .answer-bar,.hub-student .unit-card,.hub-student .stop-card,.hub-student .trail-card,.hub-student .sticker-shelf,.hub-student .koa-speech,.hub-student .film-checkpoint{background:var(--card-bg);border:var(--card-border);border-radius:var(--radius-card);box-shadow:var(--card-shadow)}.hub-student .kid-button{gap:var(--sp-1);padding:0 var(--sp-2);border-radius:var(--radius-control);font-size:var(--t-body);box-shadow:0 4px 0 var(--lip);font-weight:800;transition:transform .1s,box-shadow .1s,background .15s,border-color .15s}.hub-student .kid-button.is-primary{background:var(--accent,var(--teal));border-color:var(--accent,var(--teal));color:#fff;box-shadow:0 5px 0 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auto;align-items:center;display:grid;position:sticky;top:0}.kid-bar-title{text-overflow:ellipsis;white-space:nowrap;align-items:center;gap:var(--sp-1);min-width:0;font-weight:800;font-size:var(--t-body);display:flex;overflow:hidden}.kid-bar-brand{font-size:var(--t-title);color:var(--teal)}.kid-bar-tools{gap:var(--sp-1,8px);justify-content:flex-end;align-items:center;display:flex}.hub-student .kid-bar .kid-button{font-size:var(--t-small);white-space:nowrap;gap:6px;padding:0 12px}.hub-student .kid-button.is-toggle{padding:0 10px 0 12px}.switch{background:var(--paper-3);border:2px solid var(--ink-soft);border-radius:999px;flex:none;width:36px;height:22px;position:relative}.switch:after{content:"";background:var(--ink-soft);border-radius:50%;width:14px;height:14px;transition:transform .15s;position:absolute;top:2px;left:2px}.kid-button.is-toggle[aria-pressed=true]{border-color:var(--teal);background:var(--teal-soft)}.kid-button.is-toggle[aria-pressed=true] 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var(--line);background:var(--paper-2);color:var(--ink);font-weight:800;font-size:var(--t-small);border-radius:999px;padding:4px 12px 4px 4px;text-decoration:none;display:inline-flex}.kid-me .avatar{width:52px;height:52px}.kid-page{max-width:1120px;padding:var(--sp-3,24px) var(--sp-3,24px) var(--sp-6,64px);gap:var(--sp-3,24px);align-content:start;margin:0 auto;display:grid}.page-head{align-items:center;gap:var(--sp-2);display:flex}.page-head>div{gap:4px;display:grid}.koa-host{--koa-w:200px;flex-direction:column;flex:none;align-items:center;display:flex;position:relative}.koa-host.size-hero{--koa-w:clamp(190px, 34vh, 446px)}.koa-host.size-large{--koa-w:clamp(170px, 24vh, 300px)}.koa-host.size-medium{--koa-w:clamp(130px, 17vh, 206px)}.koa-host.size-dock{--koa-w:120px}.koa-host[data-koa=figure]{width:var(--koa-w);max-width:100%}.koa-tap{aspect-ratio:6/7;cursor:pointer;width:100%;min-height:64px;box-shadow:none;background:0 0;border:0;border-radius:28px;padding:0;display:block}.hub-student .koa-tap:hover:not(:disabled){background:0 0}.koa-tap .koa-figure{width:100%;height:100%}.koa-figure{pointer-events:none;flex:none;position:relative}.koa-bubble{background:var(--surface);border:2px solid var(--line);box-shadow:var(--card-shadow);font-weight:800;font-size:var(--t-body);text-align:left;border-radius:24px;align-self:stretch;width:max-content;max-width:min(100%,340px);margin:0 0 14px;padding:12px 18px;line-height:1.25;position:relative}.koa-host.size-hero .koa-bubble{max-width:min(120%,380px);font-size:var(--t-title)}.koa-bubble:after{content:"";background:var(--surface);border-right:2px solid var(--line);border-bottom:2px solid var(--line);border-bottom-right-radius:4px;width:20px;height:20px;position:absolute;bottom:-12px;left:34%;transform:rotate(45deg)}.koa-host.caption-page .koa-bubble{display:none}.koa-host[data-koa=buddy]{align-items:stretch;width:100%}.koa-host.caption-page .koa-buddy__bubble{display:none}.koa-host .koa-buddy{--koa-bubble-max:26rem}.koa-rail,.koa-side,.map-side,.film-koa,.hero>.koa-host{container-type:inline-size}.hero .koa-buddy{--koa-h:min(clamp(220px, 40vh, 520px), calc(100cqi / .9444))!important}.koa-rail .koa-buddy{justify-content:center;--koa-h:min(clamp(170px, 30vh, 300px), calc(100cqi / .9444))!important}.koa-side .koa-buddy{--koa-h:min(clamp(180px, 28vh, 380px), calc(100cqi / .9444))!important}.map-side .koa-buddy{--koa-h:min(clamp(170px, 24vh, 320px), calc(100cqi / .9444))!important}.film-koa .koa-buddy{--koa-h:min(clamp(180px, 28vh, 380px), calc(100cqi / .9444))!important}.hero{gap:var(--sp-3);padding:var(--sp-3) var(--sp-3) 0;background:radial-gradient(ellipse 70% 38% at 18% 104%, var(--hill-1) 0 60%, transparent 61%), radial-gradient(ellipse 60% 30% at 88% 106%, var(--hill-2) 0 60%, transparent 61%), linear-gradient(180deg, var(--sky-top) 0%, var(--sky-bottom) 100%);border:2px solid var(--line-soft);border-radius:36px;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:end;display:grid;position:relative;overflow:hidden}.hero-side{gap:var(--sp-2);padding-bottom:var(--sp-3);align-content:end;min-width:0;display:grid}.picker{justify-items:stretch}.picker-actions{gap:var(--sp-2);flex-wrap:wrap;display:flex}.avatar-tiles{gap:var(--sp-3);grid-template-columns:repeat(auto-fill,minmax(200px,1fr));margin:0;padding:0;list-style:none;display:grid}.avatar-tile{justify-items:center;gap:var(--sp-1);width:100%;padding:var(--sp-3) var(--sp-2) var(--sp-2);border-radius:var(--radius-card);border:var(--card-border);background:var(--card-bg);box-shadow:0 6px 0 var(--lip), var(--card-shadow);cursor:pointer;font-size:var(--t-body);transition:transform .15s,border-color .15s;display:grid}.avatar-tile .avatar{border:6px solid var(--accent-soft);box-shadow:0 0 0 3px var(--accent)}.avatar-tile:hover:not(:disabled){border-color:var(--accent);transform:translateY(-3px)rotate(-1deg)}.avatar-tile:active:not(:disabled){box-shadow:0 2px 0 var(--lip);transform:translateY(2px)}.avatar-name{font-weight:850;font-size:var(--t-title)}.picker-empty{text-align:center}.grown-up-link{justify-content:center;margin:0;display:flex}.sheet-backdrop{z-index:60;background:#2b262059;place-items:center;padding:16px;display:grid;position:fixed;inset:0;overflow:auto}.pin-sheet{background:var(--paper);width:min(440px,100%);padding:var(--sp-3,24px);gap:var(--sp-2,16px);border-radius:32px;outline:none;justify-items:center;display:grid;box-shadow:0 20px 60px #2b26204d}.pin-sheet:focus-visible{outline:none}.pin-head{align-items:center;gap:var(--sp-2,16px);display:flex}.pin-head h2{font-size:var(--t-title);margin:0}.pin-dots{gap:var(--sp-2,16px);padding:var(--sp-1) 0;display:flex}.pin-dot{border:3px dashed var(--ink-soft);background:var(--card-white);border-radius:50%;width:36px;height:36px;position:relative}.pin-dot-fill{background:var(--teal);border-radius:50%;transition:transform .18s cubic-bezier(.3,1.6,.5,1);position:absolute;inset:3px;transform:scale(0)}.pin-dot.is-filled{border-style:solid;border-color:var(--teal)}.pin-dot.is-filled .pin-dot-fill{transform:scale(1)}.pin-dots.is-wobble{animation:.45s ease-in-out pin-wobble}@keyframes pin-wobble{0%,to{transform:translate(0)}25%{transform:translate(-8px)}50%{transform:translate(7px)}75%{transform:translate(-4px)}}.pin-message{min-height:1.4em;color:var(--ink-soft);text-align:center;font-weight:750;font-size:var(--t-body);margin:0}.pin-message.is-locked{color:var(--amber-ink)}.pin-keys{grid-template-columns:repeat(3,1fr);gap:12px;width:100%;display:grid}.hub-student .pin-key{min-height:var(--target-big);font-size:var(--t-display);background:var(--surface);border:2px solid var(--line);box-shadow:0 5px 0 var(--lip);border-radius:24px;place-items:center;font-weight:850;display:grid}.hub-student .pin-key:active:not(:disabled){box-shadow:0 2px 0 var(--lip);transform:translateY(3px)}.hub-student .pin-key.is-quiet{box-shadow:none;background:0 0;border-color:#0000}.continue-card{align-items:center;gap:var(--sp-2);padding:var(--sp-2) var(--sp-3) var(--sp-2) var(--sp-2);border-radius:var(--radius-card);color:var(--ink);background:var(--surface);border:3px solid var(--accent);box-shadow:0 6px 0 var(--accent-deep);text-decoration:none;transition:transform .12s,box-shadow .12s;display:flex}.continue-card:hover{transform:translateY(-2px)}.continue-card:active{box-shadow:0 2px 0 var(--accent-deep);transform:translateY(4px)}.continue-play{background:var(--accent);color:#fff;border-radius:50%;flex:none;place-items:center;width:88px;height:88px;display:grid;box-shadow:inset 0 -5px #00000026}.continue-text{justify-items:start;gap:4px;min-width:0;display:grid}.continue-title{font-size:var(--t-title);font-weight:850;line-height:1.12}.adventure{display:grid}.trail-cards{gap:var(--sp-2);grid-template-columns:repeat(2,minmax(0,1fr));margin:0;padding:0;list-style:none;display:grid}.trail-card{gap:var(--sp-1);padding:var(--sp-2) var(--sp-2) var(--sp-1);color:var(--ink);text-decoration:none;transition:transform .12s,border-color .12s;display:grid;border-left:10px solid var(--accent)!important}.trail-card:hover{transform:translateY(-2px);border-color:var(--accent)!important}.trail-cards>li{min-width:0}.trail-card-head{column-gap:var(--sp-2);grid-template-columns:auto minmax(0,1fr);align-items:center;min-width:0;display:grid}.trail-card-head .path-symbol{grid-row:span 2}.path-symbol{background:var(--accent);color:#fff;width:56px;height:56px;font-size:var(--t-display);border-radius:18px;flex:none;place-items:center;font-weight:900;line-height:1;display:grid;box-shadow:inset 0 -4px #00000026}.path-symbol.is-big{border-radius:24px;width:80px;height:80px;font-size:48px}.path-name{font-weight:850;font-size:var(--t-title)}.trail-count{font-size:var(--t-small);color:var(--ink-soft);white-space:nowrap;font-weight:750}.path-name{min-width:0}.trail-road{height:120px;margin-top:28px;display:block;position:relative}.trail-svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.road-bed{fill:none;stroke:var(--road);stroke-width:22px;stroke-linecap:round;vector-effect:non-scaling-stroke}.road-dash{fill:none;stroke:var(--surface-warm);stroke-width:3px;stroke-dasharray:2 12;stroke-linecap:round;vector-effect:non-scaling-stroke}.trail-stone{left:calc(var(--x) * 1%);top:calc(var(--y) * 1%);border:3px solid var(--accent);background:var(--card-white);width:46px;height:46px;color:var(--accent-ink);font-size:var(--t-small);box-shadow:0 3px 0 var(--lip);border-radius:50%;place-items:center;font-weight:900;line-height:1;display:grid;position:absolute;transform:translate(-50%,-50%)}.trail-stone.state-locked{border:3px dashed var(--muted-line);color:var(--muted-ink);background:var(--muted-bg);box-shadow:none}.trail-stone.state-exploring,.trail-stone.state-practising{background:var(--accent-soft)}.trail-stone.state-needs_a_hand{border-color:var(--amber);background:var(--amber-soft);color:var(--amber-ink)}.trail-stone.state-demonstrated,.trail-stone.state-independent{background:var(--accent);color:#fff;box-shadow:0 0 0 3px var(--accent), 0 4px 0 3px var(--accent-deep);border-color:#fff;transform:translate(-50%,-50%)rotate(-8deg)}.trail-stone.is-current{border-width:4px;width:52px;height:52px}.trail-explorer{justify-items:center;display:grid;position:absolute;bottom:calc(100% - 4px);left:50%;transform:translate(-50%)}.trail-explorer .avatar{border:3px solid var(--accent);box-shadow:0 4px 10px #2b262033}.trail-explorer:after{content:"";border:8px solid #0000;border-top-color:var(--accent);width:0;height:0;margin-top:-2px}.sticker-shelf{padding:var(--sp-3) var(--sp-3) var(--sp-4);position:relative;overflow:hidden}.stickers{gap:var(--sp-2);z-index:1;flex-wrap:wrap;margin:0;padding:0;list-style:none;display:flex;position:relative}.hub-student .sticker{width:148px;padding:var(--sp-2) var(--sp-1) var(--sp-1);background:var(--surface);border:3px solid var(--accent);box-shadow:0 5px 0 var(--accent-deep);cursor:pointer;text-align:center;font-size:var(--t-small);border-radius:26px;justify-items:center;gap:6px;transition:transform .15s;display:grid;position:relative}.sticker.tilt-left{transform:rotate(-2deg)}.sticker.tilt-right{transform:rotate(2deg)}.sticker:hover{transform:rotate(0)translateY(-3px)}.sticker .avatar{border-color:var(--accent-soft)}.sticker-star{background:var(--accent);color:#fff;width:34px;height:34px;box-shadow:0 2px 0 var(--accent-deep);border-radius:50%;place-items:center;font-size:20px;line-height:1;display:grid;position:absolute;top:6px;right:10px}.sticker-name{font-size:var(--t-small);font-weight:800;line-height:1.2}.shelf-edge{background:linear-gradient(#d9b98a,#c39a63);border-top:3px solid #b88a52;height:22px;position:absolute;bottom:0;left:0;right:0}.trail-map{gap:0;margin:0;padding:0;list-style:none;display:grid}.map-row{grid-template-columns:minmax(0,30%) 120px minmax(0,1fr);align-items:center;min-height:168px;display:grid}.map-side{padding:var(--sp-1) 0;align-content:center;justify-items:center;display:grid}.map-side .koa-host.size-large{--koa-w:clamp(160px, 22vh, 260px)}.map-sticker{display:inline-block;position:relative;transform:rotate(-6deg)}.map-sticker .avatar{border:4px solid var(--accent);box-shadow:0 4px 0 var(--accent-deep)}.map-road{align-self:stretch;position:relative}.map-road svg{width:100%;height:100%;position:absolute;inset:0;overflow:visible}.map-road .road-bed{stroke-width:28px}.map-stone{left:calc(var(--x) * 1%);border:4px solid var(--accent);background:var(--card-white);width:64px;height:64px;color:var(--accent-ink);font-size:var(--t-body);box-shadow:0 4px 0 var(--lip);border-radius:50%;place-items:center;font-weight:900;display:grid;position:absolute;top:50%;transform:translate(-50%,-50%)}.map-stone.state-locked{border-style:dashed;border-color:var(--muted-line);background:var(--muted-bg);color:var(--muted-ink);box-shadow:none}.map-stone.state-exploring,.map-stone.state-practising{background:var(--accent-soft)}.map-stone.state-needs_a_hand{border-color:var(--amber);background:var(--amber-soft);color:var(--amber-ink)}.map-stone.state-demonstrated,.map-stone.state-independent{background:var(--accent);color:#fff;box-shadow:0 0 0 4px var(--accent), 0 5px 0 4px var(--accent-deep);border-color:#fff}.map-row.is-current .map-stone{width:76px;height:76px;box-shadow:0 0 0 8px var(--accent-soft), 0 4px 0 8px #2b262014}.stop-card{margin:var(--sp-1) 0;padding:var(--sp-2) var(--sp-3);color:var(--ink);justify-items:start;gap:6px;text-decoration:none;transition:transform .12s,border-color .12s;display:grid;position:relative}a.stop-card:hover{border-color:var(--accent);transform:translateY(-2px)}.stop-card.is-here{border:3px solid var(--accent);box-shadow:0 6px 0 var(--accent-deep)}.hub-student .stop-card.is-locked{background:var(--muted-bg);box-shadow:none;color:var(--ink-soft);border-style:dashed}.stop-number{background:var(--paper);border:2px solid var(--line);min-width:34px;height:34px;font-size:var(--t-small);color:var(--ink-soft);border-radius:999px;place-items:center;padding:0 8px;font-weight:850;display:grid;position:absolute;top:-12px;left:18px}.stop-title{font-size:var(--t-title);margin:4px 0 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li{align-items:center;gap:var(--sp-1);display:inline-flex}.step-stones li+li:before{content:"";border-top:3px dotted var(--muted-line);width:16px;margin-right:4px}.step-stone{border:3px solid var(--muted-line);background:var(--card-white);border-radius:50%;place-items:center;width:36px;height:36px;font-weight:900;display:grid}.step-stones li.is-past .step-stone{background:var(--accent);border-color:var(--accent);color:#fff}.step-stones li.is-current{color:var(--ink)}.step-stones li.is-current .step-stone{border-color:var(--accent);background:var(--accent-soft);color:var(--accent-ink)}.session-layout{gap:var(--sp-3);grid-template-columns:clamp(170px,26%,260px) minmax(0,1fr);align-items:start;display:grid}.koa-rail{justify-items:center;display:grid;position:sticky;top:96px}.koa-rail .koa-host[data-koa=figure]{width:100%}.session-main{gap:var(--sp-2);min-width:0;display:grid}.koa-speech{gap:var(--sp-1);padding:var(--sp-2) 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var(--live-line);text-align:center;display:grid;position:relative;overflow:hidden}.celebrate-title{font-size:var(--t-display);gap:4px;margin:0;display:grid}.celebrate-name{font-size:var(--t-title);color:var(--teal)}.sticker-reveal{justify-items:center;gap:var(--sp-1);display:grid}.hub-student .sticker.is-new{width:200px;padding:var(--sp-3) var(--sp-2) var(--sp-2);cursor:default;animation:.7s cubic-bezier(.2,1.4,.4,1) both sticker-in;overflow:hidden}.sticker.is-new .sticker-star{width:44px;height:44px;font-size:26px}.sticker-reveal .sticker-name{font-size:var(--t-title)}.sticker-shine{z-index:2;pointer-events:none;background:linear-gradient(115deg,#0000 30%,#ffffffd9 48%,#0000 66%);animation:1.2s ease-out .6s both sticker-shine;position:absolute;inset:0;transform:translate(-120%)}@keyframes sticker-in{0%{opacity:0;transform:rotateY(90deg)scale(.6)}to{opacity:1;transform:rotateY(0)scale(1)rotate(-3deg)}}@keyframes sticker-shine{to{transform:translate(120%)}}.celebration.is-still 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