@import url("https://fonts.googleapis.com/css2?family=Nunito:wght@400;500;600;700;800;900&display=swap");:root{--ink:#162650;--blue:#335de8;--blue-dark:#2346c5;--sky:#eaf2ff;--paper:#f8f9fc;--mint:#bff2d8;--gold:#ffd451;--muted:#596887;--line:#dce4f2;--red:#a82c34;--font:"Nunito",ui-rounded,"Trebuchet MS",sans-serif}*{box-sizing:border-box}html{min-height:100%;scrollbar-color:#9aadd2 var(--paper);scrollbar-width:thin}body,html{background:var(--paper)}body{margin:0;color:var(--ink);font-family:var(--font);min-height:100vh}::selection{color:#102356;background:#b9d4ff}a,button{-webkit-tap-highlight-color:transparent}button{font:inherit}a:focus-visible,button:focus-visible{outline:3px solid #f1ad10;outline-offset:4px}.game-shell{max-width:1100px;min-height:100vh;margin:0 auto;padding:24px 44px 20px;display:flex;flex-direction:column}.topbar{display:flex;justify-content:space-between;min-height:48px}.brand,.topbar{align-items:center}.brand{display:inline-flex;gap:10px;text-decoration:none;font-weight:900;font-size:1.25rem;letter-spacing:-.04em}.brand img{border-radius:12px;object-fit:cover}.top-score{display:flex;align-items:center;gap:7px;font-size:1.05rem;font-weight:900;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.score-star{color:#d59b00;font-size:1.25rem}.score-label{font-size:.82rem;color:var(--muted);font-weight:700}.menu-screen{display:grid;grid-template-columns:1.1fr .9fr;grid-template-rows:minmax(300px,1fr) auto auto;padding:36px 14px 0;grid-column-gap:18px;column-gap:18px}.menu-copy{align-self:center;max-width:500px;z-index:1}.welcome{margin:0 0 12px;color:var(--blue);font-weight:900;letter-spacing:.015em;font-size:.96rem}h1,h2,p{margin-top:0}.lesson-screen h1,.menu-copy h1{font-size:clamp(2.7rem,6vw,4.5rem);line-height:1.02;letter-spacing:-.055em;margin:0 0 20px;font-weight:900}.menu-copy h1 span{color:var(--blue)}.menu-subtitle{color:var(--muted);font-size:1.08rem;line-height:1.65;margin:0 0 26px}.primary-button{border:0;border-radius:16px;background:var(--blue);color:white;padding:15px 22px;box-shadow:0 10px 22px #2647bc24,0 2px 4px #203dba24;cursor:pointer;transition:transform .16s ease,background .16s ease,box-shadow .16s ease}.primary-button:hover{background:var(--blue-dark);transform:translateY(-2px);box-shadow:0 14px 28px #2647bc2e,0 3px 8px #203dba26}.primary-button:active{box-shadow:0 5px 12px #203dba24}.primary-button:disabled{opacity:.6;cursor:wait;transform:none}.primary-button span{padding-left:12px;font-size:1.1rem}.start-button{min-width:190px;font-size:1.05rem}.menu-art{position:relative;height:310px}.menu-art img{width:min(78%,270px);aspect-ratio:1;object-fit:cover;border-radius:32px;position:relative;z-index:1;box-shadow:0 22px 48px #16265030;transform:rotate(3deg)}.orbit{position:absolute;border:1px dashed #9fb4ef;border-radius:50%;width:290px;height:290px}.orbit-two{width:225px;height:225px;border-color:#e2c05a;transform:rotate(27deg)}.stats-row{grid-column:1/-1;display:flex;border:1px solid var(--line);border-radius:22px;background:#fff;padding:19px 10px;box-shadow:0 12px 32px #263a6510}.stat{flex:1 1;display:flex;align-items:center;justify-content:center;gap:12px;min-height:54px;border-right:1px solid var(--line)}.stat:last-child{border:0}.stat-icon{width:36px;height:36px;border-radius:12px;display:grid;place-items:center;font-size:1.1rem}.gem-icon{background:#fff5d0;color:#d79d00}.star-icon{background:#edf0ff;color:#455ee2}.book-icon{background:#e5f8ee;color:#26965a}.stat small,.stat strong{display:block}.stat strong{font-size:1.15rem;font-weight:900;line-height:1.1;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.stat small{color:var(--muted);font-size:.79rem;font-weight:700;margin-top:4px}.empty-note{grid-column:1/-1;text-align:center;color:var(--muted);font-size:.83rem;margin:11px 0 0}.maze-screen,.play-screen{margin:40px auto 24px;flex:1 1}.screen-heading{display:flex;align-items:center;gap:14px;margin-bottom:25px}.screen-heading h1{font-size:2rem;line-height:1.1;letter-spacing:-.04em;margin:0 0 4px;font-weight:900}.screen-heading p{margin:0;color:var(--muted);font-weight:700}.back-button{border:1px solid var(--line);background:#fff;border-radius:14px;width:46px;height:46px;color:var(--ink);font-size:1.4rem;cursor:pointer}.back-button:hover{border-color:#9bacd0;background:#f3f6ff}.runway{height:290px;overflow:hidden;position:relative;border-radius:28px;background:linear-gradient(#b6dcff,#e2f3ff 62%,#d2f1dd 0,#d2f1dd);border:1px solid #c7e1f5}.sky-sun{right:14%;top:12%;width:54px;height:54px;border-radius:50%;background:#ffdc73;box-shadow:0 0 0 12px #ffdc7340}.cloud,.sky-sun{position:absolute}.cloud{width:75px;height:25px;background:#f8fcff;border-radius:30px;top:28%;left:18%}.cloud:after,.cloud:before{content:"";position:absolute;background:inherit;border-radius:50%;width:35px;height:35px;top:-15px;left:13px}.cloud:after{left:36px;width:26px;height:26px;top:-8px}.cloud-b{left:auto;right:28%;top:20%;transform:scale(.7)}.hill{position:absolute;bottom:22%;width:70%;height:90px;border-radius:50% 50% 0 0/100% 100% 0 0;background:#8bcba2;left:-12%;transform:rotate(-4deg)}.hill-front{left:48%;width:70%;height:70px;background:#6fbd8e;transform:rotate(5deg)}.ground-line{position:absolute;bottom:22%;width:100%;height:7px;background:#477957}.runner{position:absolute;left:20%;bottom:calc(22% + 6px);width:48px;height:61px;border-radius:24px 24px 14px 14px;background:var(--blue);color:white;font-size:0;box-shadow:inset 0 -9px #2849c6;z-index:2}.runner:before{width:31px;height:31px;background:#ffd3af;border-radius:50%;top:-21px;border:3px solid white}.runner:after,.runner:before{content:"";position:absolute;left:8px}.runner:after{bottom:-11px;width:13px;height:16px;border-radius:8px;background:#203dba;box-shadow:20px 0 #203dba}.gem-obstacle{position:absolute;right:23%;bottom:calc(22% + 11px);color:#ffba21;text-shadow:0 3px 0 #d38a0a,0 0 22px #ffea75;font-size:3.5rem;z-index:2}.is-sparking .runner{animation:hop .8s cubic-bezier(.16,1,.3,1) both}.is-sparking .gem-obstacle{animation:gem-pop .8s cubic-bezier(.16,1,.3,1) both}.spark-message{position:absolute;z-index:3;left:50%;top:20%;transform:translateX(-50%);background:#fff;color:var(--ink);font-weight:900;padding:10px 16px;border-radius:14px;box-shadow:0 6px 20px #182a5225;white-space:nowrap;animation:message-pop .5s ease-out both}@keyframes hop{45%{transform:translate(110px,-90px) rotate(-8deg)}to{transform:translate(190px)}}@keyframes gem-pop{50%{transform:scale(1.5) rotate(15deg);opacity:.9}to{transform:scale(0);opacity:0}}@keyframes 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h1{font-size:clamp(2.6rem,6vw,4rem);margin-bottom:16px}.lesson-copy{max-width:480px;font-size:1.08rem;line-height:1.7;color:var(--muted);margin-bottom:25px}.maze-count{margin-left:auto;border-radius:99px;background:#e8edff;color:var(--blue-dark);padding:8px 13px;font-size:.82rem;font-weight:900;font-feature-settings:"tnum";font-variant-numeric:tabular-nums}.maze-board{height:180px;position:relative;background-color:#ecf1ff;background-image:linear-gradient(90deg,#859de4 8px,transparent 0),linear-gradient(#859de4 8px,transparent 0);background-size:64px 52px;background-position:0 0,0 0;border:8px solid #d8e1ff;box-shadow:inset 0 0 0 1px #a8b9ef;margin-bottom:22px}.maze-board:after{content:"";position:absolute;inset:50px 25% 42px 24%;border:8px solid #ecf1ff;border-left:0;border-right:0}.maze-ball,.maze-player{position:absolute;width:33px;height:33px;border-radius:50%;display:grid;place-items:center;font-size:14px;z-index:2;box-shadow:0 3px 0 #16265026}.maze-ball{background:#ffd458;color:#b47b00;left:13%;top:28%}.ball-two{left:76%;top:60%;background:#b8efd0;color:#258c52}.ball-three{left:47%;top:66%;background:#f4b6c7;color:#ae4c67}.maze-player{left:48%;top:21%;border-radius:12px;transform:rotate(45deg);background:#526feb;color:white}.question-panel{background:#fff;border:1px solid var(--line);border-radius:24px;padding:22px 24px;box-shadow:0 12px 32px #263a6510}.subject-tag{display:inline-block;color:#405bd8;background:#edf0ff;border-radius:99px;padding:6px 11px;font-size:.77rem;font-weight:900;margin:0 0 11px}.question-panel h2{font-size:1.32rem;line-height:1.35;letter-spacing:-.02em;margin:0 0 16px;font-weight:900}.answer-list{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px}.answer-button{display:flex;align-items:center;justify-content:space-between;gap:7px;min-height:48px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--ink);padding:10px 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auto;row-gap:15px}.menu-copy{padding-top:5px}.menu-copy h1{font-size:clamp(2.65rem,13vw,4rem)}.menu-subtitle{font-size:1rem;max-width:330px}.menu-art{height:190px;grid-row:2}.menu-art img{width:160px;border-radius:23px}.orbit{width:185px;height:185px}.orbit-two{width:145px;height:145px}.stats-row{grid-row:3;padding:14px 4px;border-radius:18px}.stat{gap:7px}.stat-icon{width:31px;height:31px;border-radius:10px;font-size:.95rem}.stat strong{font-size:1.02rem}.stat small{font-size:.68rem}.empty-note{grid-row:4;font-size:.78rem}.maze-screen,.play-screen{margin:29px auto 20px}.screen-heading{margin-bottom:20px}.screen-heading h1{font-size:1.65rem}.screen-heading p{font-size:.86rem}.runway{height:245px;border-radius:22px}.gem-obstacle{right:17%;font-size:3rem}.runner{left:14%}.run-controls{align-items:flex-start;flex-direction:column}.run-controls .primary-button{width:100%}.lesson-screen{padding:32px 5px}.lesson-screen h1{font-size:2.65rem}.lesson-copy{font-size:1rem}.lesson-screen .primary-button{width:100%}.maze-board{height:150px}.question-panel{padding:18px 16px}.answer-list{grid-template-columns:1fr;gap:8px}.answer-button{min-height:46px}.privacy-note{font-size:.72rem;padding-top:16px}}@media(max-width:360px){.game-shell{padding-left:14px;padding-right:14px}.stat{gap:5px}.stat-icon{width:27px;height:27px}.stat small{font-size:.62rem}.menu-copy h1{font-size:2.5rem}}@media(prefers-reduced-motion:reduce){*,:after,:before{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}.gem-obstacle{right:auto;border:0;background:transparent;padding:0;line-height:1;cursor:pointer;transform:translateX(-50%);transition:filter .14s ease}.gem-obstacle:hover{filter:brightness(1.12) drop-shadow(0 4px 8px #ffcf42)}.runway.is-jumping .runner{animation:runner-hop .62s cubic-bezier(.2,.8,.25,1) both}.runway.is-sparking .runner{animation:none}.runway.is-sparking .gem-obstacle{animation:gem-pop .6s ease-out both}@keyframes runner-hop{45%{transform:translateY(-78px) rotate(-8deg)}to{transform:translateY(0)}}.maze-board{max-width:560px;margin-left:auto;margin-right:auto;overflow:hidden;background:#edf0ff;border:10px solid #344d9f;border-radius:24px;box-shadow:inset 0 0 0 2px #c2ccf1;touch-action:manipulation}.maze-board:after{display:none}.maze-wall-art{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:1}.maze-wall-art path{fill:none;stroke:#5266b8;stroke-width:8;vector-effect:non-scaling-stroke}.maze-ball{transform:translate(-50%,-50%);border:0;padding:0;cursor:default;pointer-events:none;box-shadow:0 4px 9px #16265028;z-index:2}.ball-2{background:#b8efd0;color:#258c52}.ball-3{background:#f4b6c7;color:#ae4c67}.maze-player{transform:translate(-50%,-50%) rotate(45deg);box-shadow:0 4px 9px #16265028;transition:left .13s ease,top .13s ease;z-index:2}.maze-controls{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(2,48px);grid-gap:6px;gap:6px;justify-content:center;margin:16px auto}.maze-control{border:1px solid #cad5f3;border-radius:14px;background:#fff;color:var(--blue-dark);font-size:1.35rem;font-weight:900;box-shadow:0 4px 10px #16265010;cursor:pointer;touch-action:manipulation}.maze-control:hover:not(:disabled){background:#edf1ff;border-color:#9bacf1}.maze-control:disabled{opacity:.45;cursor:default}.maze-control.up{grid-column:2;grid-row:1}.maze-control.left{grid-column:1;grid-row:2}.maze-control.down{grid-column:2;grid-row:2}.maze-control.right{grid-column:3;grid-row:2}.maze-help{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:18px;background:#fff;padding:15px 18px;color:var(--muted);font-size:.9rem;line-height:1.5}.maze-help strong{color:var(--ink);font-size:.98rem}.maze-message{text-align:center;margin:8px 0 0}@media(max-width:700px){.maze-board{height:235px}}:root{--ink:#f0f6f5;--blue:#45d5dc;--blue-dark:#18a6b7;--sky:#101a22;--paper:#080c11;--mint:#74dfc8;--gold:#ff9a3d;--muted:#bdc9cf;--line:#30414a;--red:#ff9b91}body,html{background:#080c11;color:var(--ink)}html{scrollbar-color:#38505a #080c11}::selection{color:#091014;background:#77e8e2}.game-shell{max-width:1040px;padding:20px 24px 18px}.topbar{min-height:54px}.brand{color:var(--ink)}.brand img{border:1px solid #3dd4d7;border-radius:13px}.top-status{gap:14px}.level-chip,.top-status{display:flex;align-items:center}.level-chip{gap:7px;border:1px solid #33505a;border-radius:10px;background:#10191f;padding:7px 10px;color:#9de9e5;font:800 .72rem/1 ui-monospace,Consolas,monospace;letter-spacing:.08em}.level-chip strong{font-size:.95rem;color:#fff}.top-score{color:#f1f5f4}.score-star{color:var(--gold)}.score-label{color:#bdc9cf}.menu-screen{width:min(100%,620px);min-height:610px;flex:1 1;margin:26px auto 20px;padding:28px 30px 24px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:18px;border:1px solid #2b3c45;border-radius:26px;background:#0e151b;box-shadow:0 18px 44px #0007}.menu-copy{width:100%;max-width:490px;text-align:center}.welcome{color:#5ee1dc;font:800 .76rem/1.4 ui-monospace,Consolas,monospace;letter-spacing:.12em;text-transform:uppercase}.menu-copy h1{font-size:clamp(2.25rem,8vw,3.4rem);line-height:1.06;letter-spacing:-.045em;margin:0 0 14px}.menu-copy h1 span{color:#71e2dc}.menu-subtitle{max-width:390px;margin:0 auto 12px;color:#c0cdd2;font-size:1rem;line-height:1.55}.level-rule{margin:0 0 20px;color:#ffbf7c;font-size:.82rem;font-weight:800}.primary-button{min-height:54px;border:1px solid #ffb46a;border-radius:10px;background:#ff9a3d;color:#201208;font-weight:900;box-shadow:0 7px 18px #fa8e2630;transition:transform .15s ease,background .15s ease,box-shadow .15s ease}.primary-button:hover{background:#ffb25e;color:#201208;transform:translateY(-1px);box-shadow:0 10px 22px #fa8e2640}.primary-button:active{transform:translateY(1px);box-shadow:0 3px 10px #fa8e2630}.primary-button:disabled{background:#59636a;color:#d1d8da;border-color:#69767c;opacity:1}.answer-button:focus-visible,.back-button:focus-visible,.maze-control:focus-visible,.primary-button:focus-visible{outline:3px solid #6de5df;outline-offset:3px}.start-button{min-width:210px;font-size:1rem;letter-spacing:.06em;text-transform:uppercase}.menu-art{height:142px;width:100%;display:grid;place-items:center}.menu-art img{width:124px;border:2px solid #39d4d2;border-radius:24px;box-shadow:0 12px 28px #0008;transform:none}.orbit{display:none}.stats-row{width:100%;padding:13px 8px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));grid-gap:0;gap:0;border:1px solid #2b3c45;border-radius:14px;background:#121c22;box-shadow:none}.stat{min-width:0;min-height:58px;gap:8px;border-right:1px solid #30414a;color:#f0f6f5}.stat-icon{width:30px;height:30px;border-radius:8px;background:#1a2b32;color:#8de8e2}.gem-icon{background:#332518;color:#ffc174}.star-icon{background:#1a2b32;color:#8de8e2}.book-icon{background:#1d302b;color:#89e5c7}.stat strong{font-size:1rem}.stat small{color:#c0cbd0;font-size:.7rem}.empty-note{margin:0;color:#c0cbd0;font-size:.8rem;line-height:1.45}.maze-screen,.play-screen{width:min(100%,760px);margin:26px auto 22px;padding:22px;border:1px solid #2b3c45;border-radius:22px;background:#0e151b;box-shadow:0 18px 44px #0007}.screen-heading{margin-bottom:18px}.screen-heading h1{color:#f0f6f5;font-size:1.8rem;letter-spacing:-.025em}.screen-heading p{color:#bdc9cf;font-size:.9rem}.back-button{flex:none;border:1px solid #38505a;border-radius:10px;background:#121c22;color:#a3efeb;min-width:46px;min-height:46px}.back-button:hover{border-color:#6de5df;background:#17272f}.runway{height:300px;border:1px solid #37616a;border-radius:16px;background:#101c24}.sky-sun{background:#ffb554;box-shadow:0 0 0 10px #ffb55420}.cloud{background:#a6dfe4}.hill{background:#214a46}.hill-front{background:#286258}.ground-line{height:5px;background:#56cfc4}.gem-obstacle{color:#ffc04e;text-shadow:0 2px 0 #b65b12,0 0 18px #ffb83f9c}.run-controls{margin-top:14px;padding:14px 2px 2px;border-top:1px solid #2b3c45}.run-controls strong{color:#f0f6f5}.run-controls p span{color:#bdc9cf}.lesson-screen{width:min(100%,640px);min-height:440px;margin:26px auto 22px;padding:34px;border:1px solid #2b3c45;border-radius:22px;background:#0e151b;box-shadow:0 18px 44px #0007;align-items:flex-start}.lesson-gem{width:62px;height:62px;margin:0 0 18px;border:1px solid #ffb45f;border-radius:16px;background:#332518;color:#ffc174;font-size:2rem;box-shadow:none;transform:none}.lesson-meta{display:flex;gap:8px;margin-bottom:14px}.lesson-meta span{padding:6px 10px;border:1px solid #38505a;border-radius:8px;color:#9de9e5;background:#121c22;font:800 .7rem/1.2 ui-monospace,Consolas,monospace;letter-spacing:.07em;text-transform:uppercase}.lesson-screen .welcome{margin-bottom:8px}.lesson-screen h1{max-width:540px;color:#f3f6f4;font-size:2.65rem;line-height:1.08;letter-spacing:-.04em;margin-bottom:14px}.lesson-copy{max-width:58ch;color:#c0cdd2;font-size:1.02rem;line-height:1.65}.lesson-screen .primary-button{min-width:200px}.maze-count{border:1px solid #37505a;border-radius:9px;background:#15242a;color:#9de9e5;font:800 .78rem/1 ui-monospace,Consolas,monospace}.maze-board{height:270px;margin-bottom:16px;border:2px solid #355963;border-radius:16px;background:#090f14;box-shadow:inset 0 0 0 1px #122b32}.maze-wall-art path{stroke:#41d0d3;stroke-width:7;stroke-linecap:round;stroke-linejoin:round}.maze-ball{width:32px;height:32px;border:2px solid #fff5;color:#251508;background:#ffad4a;box-shadow:0 0 14px #ffa23a75}.ball-two{background:#50d8c9;color:#08221e;box-shadow:0 0 14px #4ce3d575}.ball-three{background:#fb8da7;color:#2a0711;box-shadow:0 0 14px #ff87a475}.ball-four{background:#8edb71;color:#12240d;box-shadow:0 0 14px #8edb7175}.ball-five{background:#a8a2ff;color:#17133d;box-shadow:0 0 14px #a8a2ff75}.maze-player{width:30px;height:30px;border:2px solid #d8fffc;border-radius:9px;background:#34bec8;color:#061115;box-shadow:0 0 13px #34bec875}.maze-controls{margin:12px auto 15px}.maze-control{min-width:52px;min-height:48px;border:1px solid #3a7379;border-radius:10px;background:#122126;color:#9de9e5;box-shadow:none}.maze-control:hover:not(:disabled){border-color:#7cebe4;background:#19333a;color:#e5fffd}.maze-control:disabled{border-color:#34464c;background:#11191e;color:#839197;opacity:.72}.maze-help{gap:5px;border:0;border-top:1px solid #2b3c45;border-radius:0;background:transparent;padding:13px 2px 2px;color:#bdc9cf;font-size:.86rem}.maze-help strong{color:#f0f6f5;font-size:.9rem}.question-panel{border:1px solid #355963;border-radius:14px;background:#121c22;padding:18px;box-shadow:none}.subject-tag{border:1px solid #365d63;border-radius:8px;background:#14282d;color:#9de9e5;font:800 .72rem/1.2 ui-monospace,Consolas,monospace;letter-spacing:.06em;text-transform:uppercase}.question-panel h2{color:#f0f6f5;font-size:1.18rem;line-height:1.4}.answer-list{gap:8px}.answer-button{min-height:50px;border:1px solid #3b555e;border-radius:10px;background:#0d151a;color:#eef6f5}.answer-button:hover:not(:disabled){border-color:#63ddd9;background:#17272d;color:#fff}.answer-button:disabled{border-color:#33434a;background:#11191e;color:#a9b4b9;opacity:1}.answer-button span{color:#7ce5df}.answer-message{color:#91e5c7}.error-note{border:1px solid #79403e;border-radius:10px;background:#281918;color:#ffd4cf}.error-note button{color:#ffb1a8}.privacy-note{padding-top:20px;color:#c0cbd0;font-size:.78rem}@media(max-width:700px){.game-shell{padding:13px 14px 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