:root{color-scheme:dark;--bg:#101520;--card:#192130;--line:#2b3546;--muted:#929db0;--white:#f2f5ed;--lime:#c5f469;--purple:#b59bf9;--font:'DM Sans',system-ui,sans-serif;--display:'Barlow Condensed',Impact,'Arial Narrow',sans-serif}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 5% 10%,#1e2837 0,transparent 38%),var(--bg);color:var(--white);font-family:var(--font)}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--lime);outline-offset:4px}header{height:92px;max-width:1400px;margin:auto;padding:0 48px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.brand{display:flex;gap:12px;text-decoration:none;color:inherit;font-family:var(--display);font-weight:800;font-size:25px;letter-spacing:.8px;line-height:1}.brandmark{background:var(--lime);color:#152316;font:800 35px var(--display);width:45px;height:49px;clip-path:polygon(0 0,100% 0,100% 75%,50% 100%,0 75%);text-align:center;position:relative}.brandmark>span{font-size:20px;position:absolute;right:4px;bottom:8px}.brand-sub{display:block;font:600 9px var(--font);letter-spacing:2px;margin-top:8px;color:var(--muted)}.topright{display:flex;align-items:center;gap:13px}.xp{font-weight:700;font-size:14px;color:var(--lime);margin-right:9px}.iconbutton{border:1px solid var(--line);border-radius:8px;background:#1a2331;color:#b8c1cf;height:36px;min-width:36px;padding:0 9px;font-size:12px}.iconbutton:last-child{font-size:18px}main{max-width:1400px;padding:38px 48px 0;margin:auto}.intro{display:flex;align-items:center;justify-content:space-between;margin-bottom:30px}.eyebrow{font-weight:700;font-size:10px;letter-spacing:1.6px;color:var(--lime)}.live-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lime);margin-right:6px}h1{font-family:var(--display);font-weight:800;font-size:54px;line-height:1.03;letter-spacing:.1px;margin:12px 0 12px}h1 em{color:var(--lime);font-style:normal}.intro p{font-size:13px;color:var(--muted);margin:0}.player{display:flex;align-items:center;gap:11px;padding:13px 17px;border:1px solid var(--line);border-radius:10px;background:#192230}.avatar{display:grid;place-items:center;width:35px;height:35px;background:#39304b;border:1px solid #786895;border-radius:7px;color:var(--purple);font:700 24px var(--display)}.player b{font-size:14px}.player div>span{display:block;font-size:8px;color:var(--muted);margin-top:5px;letter-spacing:1px}.mission-bar{display:flex;align-items:center;justify-content:space-between;border:1px solid var(--line);background:#19212d;border-radius:10px;padding:13px 18px;margin-bottom:20px;gap:12px}.tiny{display:block;font-size:9px;letter-spacing:1.2px;color:var(--muted);font-weight:700}select{max-width:100%;border:0;color:var(--white);background:#19212d;font-size:12px;font-weight:600;padding:5px 15px 0 0}.wave-track{display:flex;gap:8px}.wave-track span{width:30px;height:30px;border:1px solid #3b4656;border-radius:6px;display:grid;place-items:center;font-size:11px;color:var(--muted)}.wave-track span.active{background:var(--lime);color:#1a2917;border-color:var(--lime);font-weight:700}.wave-track span.done{background:#33412c;color:var(--lime);border-color:#58703d}.textbutton{border:0;background:transparent;padding:4px 0;color:var(--muted);font-size:11px;font-weight:600}.textbutton:hover{color:var(--lime)}.game-layout{display:grid;grid-template-columns:minmax(0,1.42fr) minmax(340px,1fr);gap:23px;align-items:start}.scene-card{position:relative;overflow:hidden;border:1px solid #3a4552;background:#162735;border-radius:13px}.scene-top{position:absolute;top:18px;left:18px;right:18px;display:flex;align-items:center;justify-content:space-between;gap:10px;z-index:1}.pill{background:#c5f469;color:#172b1b;padding:6px 9px;border-radius:4px;font-size:9px;letter-spacing:1px;font-weight:800}.location{font-size:9px;letter-spacing:1px;color:#bac8d1;font-weight:700}.safe-pill{font-size:8px;color:#c4dfc5;background:#1c3c39bd;border:1px solid #547066;padding:5px 6px;border-radius:4px;white-space:nowrap}canvas{width:100%;display:block;aspect-ratio:1000/550;touch-action:manipulation}.scene-bottom{position:relative;display:flex;align-items:center;gap:24px;padding:15px 18px;background:#17202d;border-top:1px solid #3b4a52}.scene-bottom>div{width:39%}.charge{height:6px;border-radius:4px;background:#303b46;margin-top:8px;overflow:hidden}.charge>span{display:block;height:100%;width:0%;background:var(--lime);transition:width .4s}.scene-bottom>span{font-size:10px;color:#a7b5c4}.mission-note{display:flex;align-items:center;gap:13px;margin:16px 0 23px;padding:16px;background:#1b2730;border:1px solid #344447;border-radius:10px}.note-icon{font-size:28px;color:var(--lime)}.mission-note b{font-size:12px}.mission-note p{font-size:11px;line-height:1.6;color:var(--muted);margin:5px 0 0}.note-tag{font-size:8px;letter-spacing:1px;color:#a4bd8f;white-space:nowrap;margin-left:auto}.section-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:13px}.section-head>span:last-child{font-size:10px;color:#758399}.tool-steps{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:9px;background:#171e2a}.tool-steps>div{padding:14px 10px 16px;border-right:1px solid var(--line)}.tool-steps>div:last-child{border:0}.tool-steps span{display:block;color:#708092;font-size:9px;margin-bottom:9px}.tool-steps b{font-family:var(--display);font-size:20px;font-weight:600}.tool-steps small{display:block;font-size:9px;color:var(--muted);margin-top:5px;line-height:1.5}.math-card{background:var(--card);border:1px solid #344052;border-radius:13px;overflow:hidden}.math-head{padding:23px 23px 16px;display:flex;align-items:center;justify-content:space-between;gap:5px}.math-head .eyebrow{font-size:8px;color:var(--purple);letter-spacing:1.2px}h2{font-family:var(--display);font-size:39px;margin:7px 0 0;line-height:1}.reward{color:#aa97d4;font-size:8px;letter-spacing:.5px;background:#2a283e;border:1px solid #433957;border-radius:5px;padding:7px}.step-tabs{display:flex;margin:0 23px 15px;gap:5px}.step-tabs>span{flex:1;text-align:center;font-size:9px;background:#222d3b;color:#8190a1;border-radius:4px;padding:7px 2px}.step-tabs>span.active{background:#3b4730;color:var(--lime)}.workspace{margin:0 23px;border:1px solid #2e3a49;border-radius:8px;background:repeating-linear-gradient(0deg,transparent,transparent 27px,#242f3c66 28px),repeating-linear-gradient(90deg,#141d29,#141d29 27px,#242f3c66 28px);min-height:180px;padding:17px 20px;display:flex;justify-content:center;align-items:center;overflow-x:auto}.division-grid{display:grid;grid-auto-rows:27px;font:600 23px ui-monospace,SFMono-Regular,Consolas,monospace;text-align:center;gap:0;position:relative}.digit{display:flex;align-items:center;justify-content:center;min-width:25px}.quotient{color:var(--lime)}.bracket-top{border-top:2px solid #7f91a3}.bracket-left{border-left:2px solid #7f91a3}.subline{border-bottom:1px solid #7f91a3}.worknum{color:#a2b1c3;font-size:19px}.worknum.lit{color:var(--lime)}.questionmark{color:#bb9bf3}.prompt-area{padding:20px 23px 23px}.prompt-top{display:flex;align-items:center;gap:9px}.step-badge{background:#333c2a;color:var(--lime);font-size:10px;font-weight:700;padding:5px 6px;border-radius:4px}.prompt-top b{font-size:13px}.prompt-top>span:last-child{font-size:9px;color:#8190a1;margin-left:auto}#question{font-size:14px;line-height:1.65;margin:13px 0 15px;min-height:46px}#answer-form{display:flex;gap:9px}input{width:100%;min-width:0;background:#101924;border:1px solid #3a4859;border-radius:7px;padding:12px 14px;color:var(--white);font-weight:700;font-size:17px}input::placeholder{font-size:12px;font-weight:400;color:#7b899d}.primary{border:0;border-radius:7px;background:var(--lime);color:#17251b;font-size:12px;font-weight:800;padding:13px 18px;white-space:nowrap;transition:filter .15s,transform .15s}.primary:hover{filter:brightness(1.08);transform:translateY(-1px)}.assist-row{display:flex;justify-content:space-between;align-items:center;gap:8px;margin:13px 0 10px}.assist-row .textbutton{color:#c5b4ec;font-size:11px}.assist-row>span{font-size:8px;color:#8491a5}.feedback{font-size:11px;line-height:1.6;color:#8e9fb3;min-height:35px}.feedback.good{color:var(--lime)}.feedback.retry{color:#f3d08c}.hint-box{padding:11px;border:1px solid #544570;border-radius:6px;color:#d5c7f1;background:#272438;font-size:12px;line-height:1.7;margin-top:9px}.next-wave{width:100%;margin-top:14px}.victory{position:absolute;inset:0;z-index:3;background:#14202bef;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:20px}.victory h2{font-size:65px;color:var(--lime);margin:15px 0}.victory p{font-size:13px;line-height:1.7}.victory .primary{margin-top:15px}[hidden]{display:none!important}footer{display:flex;justify-content:space-between;color:#657286;font-size:8px;letter-spacing:1px;padding:28px 0}dialog{background:#1a2432;color:var(--white);border:1px solid #4b5d6b;border-radius:15px;padding:35px;max-width:470px;width:calc(100% - 35px)}dialog::backdrop{background:#070d18c9;backdrop-filter:blur(5px)}dialog h2{font-size:37px;margin:14px 0 20px}dialog p{font-size:13px;line-height:1.85;color:#a8b7c9}dialog .primary{margin-top:10px}.close{position:absolute;right:16px;top:12px;background:transparent;border:0;color:#b2bed0;font-size:26px}.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}@media(min-width:1500px){main{padding-top:45px}.workspace{min-height:215px}}@media(max-width:1000px){header{padding:0 25px}main{padding:26px 25px 0}.game-layout{gap:16px;grid-template-columns:minmax(0,1fr) minmax(320px,1fr)}.scene-top{left:11px;right:11px;top:12px}.location{font-size:7px}.note-tag{display:none}.math-head,.prompt-area{padding-left:17px;padding-right:17px}.workspace{margin-left:17px;margin-right:17px}.step-tabs{margin-left:17px;margin-right:17px}.tool-steps small{font-size:8px}.tool-steps b{font-size:17px}h1{font-size:44px}.scene-bottom{gap:12px;padding:13px 11px}.scene-bottom>span{font-size:9px}}@media(max-width:740px){header{height:74px;padding:0 18px}.brand{font-size:21px}.brandmark{width:36px;height:41px;font-size:29px}.brand-sub{font-size:7px}.topright{gap:6px}.xp{font-size:11px;margin-right:1px}.iconbutton{height:32px;min-width:30px;font-size:10px;padding:0 6px}main{padding:24px 15px 0}.intro{margin-bottom:20px}.intro .eyebrow{font-size:8px}h1{font-size:38px;margin-top:10px}.intro p{font-size:11px;line-height:1.6;max-width:290px}.player{display:none}.mission-bar{padding:11px;flex-wrap:wrap;gap:9px;margin-bottom:14px}.mission-bar>div:first-child{flex:1;min-width:195px}select{font-size:10px}.wave-track{gap:4px}.wave-track span{width:23px;height:23px;font-size:9px}.mission-bar .textbutton{font-size:10px}.game-layout{display:flex;flex-direction:column;gap:15px}.adventure{display:contents}.scene-card{order:0;width:100%}.math-card{order:1;width:100%}.mission-note{order:2;margin:0;width:100%}.toolbox{order:3;width:100%}.scene-card canvas{aspect-ratio:1000/450}.scene-top .location{font-size:8px}.scene-bottom{padding:11px 14px}.scene-bottom>span{font-size:9px}.scene-bottom>div{width:40%}.math-head{padding-top:18px;padding-bottom:13px}.math-head h2{font-size:35px}.workspace{min-height:145px;padding:12px}.prompt-area{padding-top:17px}.step-tabs>span{font-size:10px}.tool-steps small{font-size:9px}.tool-steps b{font-size:21px}footer{line-height:1.7;gap:20px;padding:22px 0;font-size:7px}.victory h2{font-size:47px}.victory p{margin:4px}.victory .eyebrow{font-size:9px}.victory .primary{padding:10px}.scene-bottom .tiny{font-size:8px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}