:root{
  --background:#dff4ef;--surface:#fffdf7;--surface-glass:rgba(255,255,255,.78);--primary:#08757a;--primary-dark:#075c61;--secondary:#f4b846;--accent:#ef6d4e;--ink:#123438;--muted:#5f7678;--success:#2b9d6c;--warning:#d9921b;--danger:#d74e48;--highlight:#fff1a8;
  --line:rgba(18,52,56,.15);--shadow:0 18px 50px rgba(20,63,66,.18);--hard-shadow:0 5px 0 rgba(18,52,56,.16);--r-xl:28px;--r-lg:22px;--r-md:16px;--safe-t:max(14px,env(safe-area-inset-top));--safe-r:max(14px,env(safe-area-inset-right));--safe-b:max(14px,env(safe-area-inset-bottom));--safe-l:max(14px,env(safe-area-inset-left));
}
*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--background);font-family:ui-rounded,"SF Pro Rounded","Avenir Next",Avenir,"Segoe UI",system-ui,sans-serif;color:var(--ink);-webkit-tap-highlight-color:transparent}button{font:inherit;color:inherit}button:focus-visible{outline:3px solid #123438;outline-offset:3px}.app{position:relative;width:100%;height:100%;min-height:100dvh;overflow:hidden;isolation:isolate}.app::after{content:"";position:absolute;inset:0;pointer-events:none;z-index:2;background:linear-gradient(180deg,rgba(255,255,255,.15),transparent 38%,rgba(7,92,97,.05))}#gameCanvas{position:absolute;inset:0;width:100%;height:100%;display:block;z-index:0;touch-action:none}.scene-grade{position:absolute;inset:0;z-index:1;pointer-events:none;background:radial-gradient(circle at 70% 30%,rgba(255,243,188,.28),transparent 32%),linear-gradient(180deg,transparent 60%,rgba(7,70,73,.13))}.screen{position:absolute;z-index:4;inset:0;padding:var(--safe-t) var(--safe-r) var(--safe-b) var(--safe-l);pointer-events:none}.screen>*{pointer-events:auto}[hidden]{display:none!important}.eyebrow{font-size:11px;font-weight:900;letter-spacing:.15em;color:var(--primary);text-transform:uppercase}.glass-panel{background:var(--surface-glass);border:1px solid rgba(255,255,255,.86);box-shadow:var(--shadow),inset 0 0 0 1px rgba(18,52,56,.06);backdrop-filter:blur(16px) saturate(1.08);-webkit-backdrop-filter:blur(16px) saturate(1.08)}
.loading{position:absolute;z-index:20;inset:0;display:grid;place-content:center;justify-items:center;gap:16px;background:#dff4ef;color:var(--ink)}.loading p{margin:0;font-weight:800}.loading-mark{position:relative;width:90px;height:44px;animation:loadBob 1.1s ease-in-out infinite}.car-body{position:absolute;left:16px;top:8px;width:58px;height:24px;border-radius:14px 20px 8px 8px;background:var(--accent);border:3px solid var(--ink);transform:skewX(-8deg)}.wheel{position:absolute;bottom:2px;width:19px;height:19px;border-radius:50%;background:var(--ink);border:4px solid #f4e7c9;z-index:2}.wheel-a{left:18px}.wheel-b{right:8px}@keyframes loadBob{50%{transform:translateY(-5px) rotate(-1deg)}}
.webgl-fallback{position:absolute;z-index:40;inset:0;background:#dff4ef;display:grid;place-items:center;padding:24px}.fallback-card{max-width:420px;text-align:center;background:#fffdf7;border:2px solid var(--ink);border-radius:28px;padding:30px;box-shadow:8px 8px 0 rgba(18,52,56,.15)}.fallback-icon{width:74px;height:74px;border-radius:22px;background:var(--highlight);display:grid;place-items:center;margin:0 auto 18px;border:2px solid var(--ink);font-weight:1000;font-size:24px}.fallback-card h1{font-size:26px;margin:0 0 8px}.fallback-card p{color:var(--muted);line-height:1.45;margin:0 0 22px}
.hud{position:absolute;z-index:9;left:var(--safe-l);right:var(--safe-r);top:var(--safe-t);height:58px;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:10px;pointer-events:none}.hud>*{pointer-events:auto}.hud-center{min-width:0;background:rgba(255,255,255,.74);border:1px solid rgba(255,255,255,.9);backdrop-filter:blur(12px);border-radius:18px;height:48px;padding:7px 11px;box-shadow:0 8px 25px rgba(18,52,56,.11)}.mission-pill{display:block;font-size:11px;font-weight:900;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-bottom:5px}.progress-rail{height:7px;background:rgba(18,52,56,.12);border-radius:99px;overflow:hidden}.progress-rail span{display:block;width:0;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--primary),#42a990);transition:width .45s cubic-bezier(.2,.8,.2,1)}.hud-actions{display:flex;gap:7px;align-items:center}.icon-button{width:46px;height:46px;border-radius:16px;border:1px solid rgba(255,255,255,.92);background:rgba(255,255,255,.78);backdrop-filter:blur(12px);box-shadow:0 7px 20px rgba(18,52,56,.11);display:grid;place-items:center;cursor:pointer;transition:transform .15s ease,background .15s ease}.icon-button:active{transform:translateY(2px) scale(.97)}.icon-button svg{width:21px;height:21px;fill:none;stroke:var(--ink);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}.icon-button svg path[d*="M7 5"]{fill:var(--ink);stroke:none}.star-chip{height:42px;min-width:58px;padding:0 10px;border-radius:15px;background:#fff8d8;border:1px solid rgba(18,52,56,.1);display:flex;align-items:center;gap:5px;font-size:13px}.star-chip span{color:#e59c19;font-size:18px}
.primary-button,.secondary-button{min-height:50px;border-radius:17px;padding:0 20px;border:2px solid var(--ink);font-weight:900;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease,filter .15s ease;box-shadow:var(--hard-shadow)}.primary-button{background:var(--primary);color:white}.primary-button:hover{filter:brightness(1.04)}.secondary-button{background:#fffdf7;color:var(--ink)}.primary-button:active,.secondary-button:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(18,52,56,.16)}.primary-button.compact{min-height:44px;border-radius:14px;padding:0 16px}.text-button{border:0;background:transparent;color:var(--primary);font-weight:850;padding:10px;cursor:pointer;text-decoration:underline;text-underline-offset:3px}
.home-screen{display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:max(20px,var(--safe-b))}.hero-copy{width:min(560px,100%);padding:0 6px 24px;text-shadow:0 2px 12px rgba(255,255,255,.35)}.hero-copy h1{margin:8px 0 10px;line-height:.82;font-size:clamp(58px,15vw,112px);letter-spacing:-.065em}.hero-copy h1 span,.hero-copy h1 em{display:block;font-style:normal}.hero-copy h1 span{font-weight:1000}.hero-copy h1 em{font-weight:1000;color:var(--accent);font-size:.62em;letter-spacing:.02em}.hero-copy p{max-width:420px;margin:16px 0 18px;font-size:16px;font-weight:700;color:#264c4f}.hero-actions{display:flex;gap:10px}.hero-play{min-width:150px;display:flex;align-items:center;justify-content:space-between;gap:18px}.hero-play i{font-style:normal;font-size:20px}.home-bottom{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;width:min(620px,100%)}.mini-feature{min-width:0;background:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.9);backdrop-filter:blur(12px);border-radius:18px;padding:9px;display:flex;align-items:center;gap:8px;box-shadow:0 8px 24px rgba(18,52,56,.08)}.feature-icon{flex:0 0 34px;height:34px;border-radius:11px;display:grid;place-items:center;background:#fff3c8;font-size:18px;font-weight:900}.mini-feature b,.mini-feature small{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.mini-feature b{font-size:12px}.mini-feature small{font-size:10px;color:var(--muted);margin-top:2px}
.map-screen{display:flex;align-items:flex-end;padding-top:80px}.map-panel{width:min(760px,100%);max-height:calc(100dvh - 94px);overflow:auto;border-radius:var(--r-xl);padding:20px;margin:0 auto}.panel-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:16px}.panel-heading h2{font-size:24px;letter-spacing:-.03em;margin:3px 0 0}.difficulty-chip{border:1px solid var(--line);background:#fffdf7;border-radius:15px;padding:8px 11px;min-width:92px;text-align:left;cursor:pointer}.difficulty-chip span,.difficulty-chip small{display:block}.difficulty-chip span{font-weight:900;font-size:12px}.difficulty-chip small{color:var(--muted);font-size:10px;margin-top:2px}.mission-map{display:grid;gap:9px}.mission-node{position:relative;display:grid;grid-template-columns:46px minmax(0,1fr) auto;align-items:center;gap:11px;text-align:left;width:100%;min-height:66px;padding:8px 10px;border:1px solid var(--line);border-radius:18px;background:rgba(255,253,247,.83);cursor:pointer;transition:transform .15s ease,background .15s ease}.mission-node:hover:not(:disabled){transform:translateY(-1px);background:#fffdf7}.mission-node:disabled{cursor:not-allowed;opacity:.57}.node-icon{width:46px;height:46px;border-radius:15px;display:grid;place-items:center;font-size:22px;border:1px solid rgba(18,52,56,.12);background:var(--node-bg,#e7f6f1)}.node-copy b,.node-copy small{display:block}.node-copy b{font-size:14px}.node-copy small{font-size:11px;color:var(--muted);margin-top:3px}.node-status{font-size:11px;font-weight:900;color:var(--primary);text-align:right}.node-stars{color:#d9921b;letter-spacing:1px;display:block;margin-top:3px}.map-footer{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}.collection-copy{display:flex;align-items:center;gap:9px}.collection-copy>span{font-size:24px}.collection-copy p{margin:0}.collection-copy b,.collection-copy small{display:block}.collection-copy b{font-size:12px}.collection-copy small{font-size:10px;color:var(--muted);margin-top:2px}
.game-screen{padding-top:82px;display:grid;grid-template-rows:auto 1fr auto;gap:10px}.challenge-card{justify-self:center;width:min(560px,100%);border-radius:22px;padding:14px 16px}.challenge-kicker{display:flex;justify-content:space-between;align-items:center;font-size:10px;font-weight:900;color:var(--primary);text-transform:uppercase;letter-spacing:.11em}.challenge-kicker b{color:var(--muted);letter-spacing:0}.challenge-card h2{text-align:center;font-size:20px;margin:8px 0 4px;letter-spacing:-.02em}.equation{text-align:center;font-size:clamp(34px,9vw,54px);font-weight:1000;letter-spacing:-.04em;min-height:50px}.equation .unknown{display:inline-grid;place-items:center;min-width:52px;height:50px;border-radius:14px;background:var(--highlight);border:2px dashed var(--ink);vertical-align:middle}.visual-problem{min-height:18px;display:flex;justify-content:center;gap:12px;align-items:center}.object-cluster{display:flex;gap:3px;align-items:center}.object-dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 1px 0 rgba(18,52,56,.2)}.object-cluster:nth-child(2) .object-dot{background:var(--primary)}.cluster-plus{font-weight:1000;color:var(--muted)}.interaction-dock{width:min(680px,100%);justify-self:center;align-self:end;padding-bottom:var(--safe-b)}.lane-choices{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:9px}.answer-gate{min-height:72px;border:2px solid var(--ink);border-radius:18px;background:#fffdf7;box-shadow:var(--hard-shadow);font-weight:1000;font-size:27px;cursor:pointer;transition:transform .15s ease,background .15s ease}.answer-gate::before{content:"LANE " attr(data-lane);display:block;font-size:9px;letter-spacing:.12em;color:var(--muted);margin-bottom:3px}.answer-gate:hover{transform:translateY(-2px)}.answer-gate:active{transform:translateY(3px);box-shadow:0 2px 0 rgba(18,52,56,.16)}.answer-gate.correct{background:#dff6e9;border-color:#267f59}.answer-gate.wrong{background:#ffe1dc;border-color:#b8443d}.tenframe-mode,.drag-mode{border-radius:22px;background:rgba(255,255,255,.82);border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow);padding:12px;backdrop-filter:blur(14px)}.tenframes-wrap{display:flex;align-items:center;justify-content:center;gap:10px}.ten-frame{display:grid;grid-template-columns:repeat(5,28px);grid-template-rows:repeat(2,28px);gap:4px;padding:7px;background:#fffdf7;border:2px solid var(--ink);border-radius:13px}.ten-cell{border:1.5px solid rgba(18,52,56,.35);border-radius:50%;background:white;cursor:pointer;position:relative}.ten-cell.filled::after{content:"";position:absolute;inset:4px;border-radius:50%;background:var(--accent);box-shadow:inset 0 -2px 0 rgba(18,52,56,.15)}.ten-frame:nth-of-type(2) .ten-cell.filled::after{background:var(--primary)}.plus-mark{font-size:23px;font-weight:1000}.answer-row{display:flex;justify-content:space-between;align-items:center;margin-top:10px;padding-left:5px}.answer-row span{font-size:12px;font-weight:900;color:var(--muted)}.drop-zone{min-height:72px;border:2px dashed rgba(18,52,56,.35);background:rgba(255,253,247,.74);border-radius:17px;display:grid;place-items:center;font-size:12px;font-weight:900;color:var(--muted);transition:background .15s ease,border-color .15s ease}.drop-zone.drag-over{background:#fff5c4;border-color:var(--primary)}.drag-choices{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-top:9px}.answer-crate{min-height:58px;border:2px solid var(--ink);border-radius:14px;background:#f4b846;box-shadow:0 4px 0 rgba(18,52,56,.16);font-size:24px;font-weight:1000;cursor:grab;touch-action:none;user-select:none}.answer-crate:nth-child(2){background:#ef8b68}.answer-crate:nth-child(3){background:#74c4af}.answer-crate.dragging{opacity:.72;transform:scale(1.04);cursor:grabbing}.coach-bubble{position:absolute;right:max(18px,var(--safe-r));bottom:calc(126px + var(--safe-b));display:flex;align-items:center;gap:8px;background:#fffdf7;border:2px solid var(--ink);border-radius:18px 18px 5px 18px;padding:9px 12px;box-shadow:var(--hard-shadow);max-width:240px}.coach-bubble p{margin:0;font-size:12px;font-weight:850}.coach-face{width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:var(--highlight)}
.modal-layer{position:absolute;z-index:30;inset:0;display:grid;place-items:center;padding:22px;background:rgba(14,47,50,.24);backdrop-filter:blur(8px)}.complete-card,.pause-card,.difficulty-card{width:min(430px,100%);border-radius:28px;padding:24px;text-align:center}.badge-art{width:84px;height:84px;margin:0 auto 13px;border-radius:27px;background:linear-gradient(145deg,#fff0ad,#f4b846);border:2px solid var(--ink);display:grid;place-items:center;font-size:40px;box-shadow:6px 6px 0 rgba(18,52,56,.13);animation:badgeIn .55s cubic-bezier(.2,.9,.2,1)}@keyframes badgeIn{0%{transform:scale(.6) rotate(-8deg);opacity:0}100%{transform:none;opacity:1}}.complete-card h2,.pause-card h2,.difficulty-card h2{font-size:29px;margin:6px 0 6px;letter-spacing:-.04em}.complete-card p,.pause-card p{margin:0 0 15px;color:var(--muted);font-weight:650}.earned-stars{font-size:35px;color:#dfa020;letter-spacing:5px;margin:12px 0 18px}.complete-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.pause-card{display:grid;gap:9px}.pause-card p{margin-bottom:6px}.difficulty-list{display:grid;gap:8px;margin:16px 0 6px}.difficulty-list button{text-align:left;border:1px solid var(--line);background:#fffdf7;border-radius:17px;padding:13px 14px;cursor:pointer}.difficulty-list button:hover{background:#fff4c9}.difficulty-list b,.difficulty-list small{display:block}.difficulty-list small{margin-top:4px;color:var(--muted)}.difficulty-list button[aria-current="true"]{border:2px solid var(--primary);background:#e6f5ef}.toast{position:absolute;z-index:35;left:50%;bottom:calc(25px + var(--safe-b));transform:translateX(-50%);background:#123438;color:white;padding:10px 15px;border-radius:14px;font-size:12px;font-weight:800;box-shadow:0 10px 30px rgba(0,0,0,.17);max-width:calc(100% - 32px);text-align:center}
@media (min-width:760px){.home-screen{justify-content:center;padding-left:max(5vw,var(--safe-l))}.hero-copy{padding-bottom:18px}.home-bottom{position:absolute;bottom:26px;left:max(5vw,var(--safe-l))}.map-screen{align-items:center}.map-panel{padding:25px}.mission-map{grid-template-columns:1fr 1fr}.mission-node:last-child{grid-column:1/-1}.game-screen{padding-top:86px}.challenge-card{justify-self:start;margin-left:max(4vw,20px);width:440px}.interaction-dock{width:min(650px,56vw);justify-self:end;margin-right:max(3vw,18px)}.coach-bubble{bottom:115px}}
@media (max-width:520px){.hud{gap:6px}.hud-actions{gap:5px}.star-chip{display:none}.icon-button{width:44px;height:44px;border-radius:15px}.hero-copy{padding-bottom:17px}.hero-copy h1{font-size:clamp(54px,17vw,78px)}.hero-copy p{font-size:14px}.home-bottom{grid-template-columns:1fr 1fr}.mini-feature:nth-child(3){display:none}.map-panel{padding:16px}.panel-heading h2{font-size:20px}.mission-node{grid-template-columns:43px 1fr auto;min-height:62px}.node-icon{width:43px;height:43px}.map-footer{align-items:flex-start}.collection-copy small{display:none}.challenge-card{padding:12px 13px}.challenge-card h2{font-size:17px}.equation{font-size:38px}.answer-gate{min-height:67px;font-size:24px}.ten-frame{grid-template-columns:repeat(5,24px);grid-template-rows:repeat(2,24px);gap:3px}.coach-bubble{bottom:calc(105px + var(--safe-b));right:var(--safe-r)}.complete-card,.pause-card,.difficulty-card{padding:20px}}
@media (max-height:680px){.home-bottom{display:none}.hero-copy{padding-bottom:8px}.hero-copy h1{font-size:54px}.hero-copy p{margin:10px 0}.challenge-card{padding:9px 12px}.equation{font-size:34px;min-height:38px}.visual-problem{display:none}.answer-gate{min-height:58px}.game-screen{padding-top:70px}.hud{height:48px}.hud-center{height:44px}.icon-button{width:42px;height:42px}.coach-bubble{display:none!important}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}