:root{--navy:#122a35;--teal:#007f79;--mint:#dbf2df;--paper:#f5f5ee;--line:#dce3dc;--muted:#52676b}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--navy);font-family:Arial,Helvetica,sans-serif;font-size:14px}button,input,select,textarea{font:inherit}button{cursor:pointer;border:1px solid var(--line);background:#fff;border-radius:8px;color:var(--navy);padding:10px 13px;font-weight:700;transition:background .15s,transform .15s}button:hover{background:#edf4ed}button:active{transform:translateY(1px)}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible,canvas:focus-visible{outline:3px solid #edab3d;outline-offset:3px}button:disabled{opacity:.45;cursor:default}header{background:var(--navy);padding:21px 3%;display:flex;justify-content:space-between;align-items:center;color:white}.brand{color:inherit;text-decoration:none;display:flex;gap:12px;align-items:center;font-size:21px;font-weight:800;letter-spacing:-.5px}.brand small{display:block;font-size:9px;letter-spacing:2px;margin-top:5px;color:#b6cfcf}.mark{background:#b8e9bf;color:var(--navy);font-size:28px;border-radius:11px;padding:5px 11px;position:relative}.mark span{font-size:12px;position:absolute;right:1px;top:1px}.header-actions{display:flex;align-items:center;gap:24px}.tag,.eyebrow{font-size:10px;font-weight:800;letter-spacing:1.8px}.tag{color:#b7d1d0}header button{background:transparent;color:#fff;border-color:#52676b}main{max-width:1700px;margin:auto;padding:34px 3% 20px}.intro{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:29px}.eyebrow{color:var(--teal)}h1{font-size:clamp(28px,3.3vw,46px);letter-spacing:-1.7px;margin:9px 0 12px}h1 em{font-style:normal;color:var(--teal)}p{line-height:1.55} .intro p{color:var(--muted);margin:0}.project-actions{display:flex;gap:9px;white-space:nowrap}.workspace{display:grid;grid-template-columns:245px minmax(420px,1fr) 228px;gap:18px;align-items:start}.panel{background:white;border:1px solid var(--line);border-radius:13px}.builder,.right-panel{padding:20px}.section-heading{display:flex;gap:9px;align-items:center}.section-heading h2{font-size:16px;margin:0}.step{font-size:10px;font-weight:bold;padding:5px;background:#ecf2eb;border-radius:5px;color:var(--teal)}label{display:block;font-size:11px;font-weight:700;margin:15px 0 7px}input,select,textarea{width:100%;border:1px solid #ccd7d0;border-radius:7px;padding:11px;background:#fff;color:var(--navy)}.starter-row{display:flex;gap:6px;margin-top:12px}.starter-row button{font-size:11px;padding:9px 7px;flex:1}.selected{background:var(--mint)!important;border-color:#6fa98b!important}.sub{margin-top:25px}.hint{font-size:11px;color:var(--muted);line-height:1.5}.tools{display:grid;grid-template-columns:repeat(3,1fr);gap:6px}.tool{padding:10px 2px 7px;font-size:10px}.tool span{display:block;font-size:20px;margin-bottom:5px}.row{display:flex;align-items:center;gap:5px;margin-top:12px}.row label{margin:0;font-size:10px}.row select{padding:7px;width:50px}.row button{padding:7px;font-size:10px;white-space:nowrap}.player-card{display:flex;align-items:center;gap:10px;margin-top:15px}.player-card strong{font-size:12px}.player-card p{margin:4px 0}.sprite-preview{width:47px;height:47px;flex-shrink:0;border-radius:9px;background:#e7f4ee;color:#007f79;font-size:34px;display:grid;place-items:center}.sprite-preview img{width:40px;height:40px;object-fit:contain}.wide{width:100%;margin-top:9px;font-size:12px}.bob-note{margin-bottom:0}.stage-column{min-width:0}.stage-bar{display:flex;justify-content:space-between;align-items:center;padding:12px 15px;background:white;border:1px solid var(--line);border-radius:12px 12px 0 0;gap:6px}.stage-bar strong{font-size:10px;letter-spacing:1px}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:#0b9c7f;margin-right:7px}#levelLabel{font-size:9px;color:var(--muted);margin-left:14px}.stage-actions{display:flex;gap:7px}.stage-actions button{font-size:11px;padding:9px 11px}.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.primary:hover{background:#006b66}.canvas-wrap{position:relative;background:#e9f4ef;line-height:0;overflow:hidden}canvas{width:100%;height:auto;display:block;touch-action:none}#overlay{position:absolute;inset:0;background:#112b35dc;display:flex;flex-direction:column;justify-content:center;align-items:center;color:#fff;text-align:center;line-height:1.5;padding:20px}#overlay[hidden]{display:none}#overlay h2{font-size:32px;margin:0}#overlay p{max-width:350px}.stage-footer{padding:12px 13px;background:white;border:1px solid var(--line);border-radius:0 0 11px 11px;display:flex;justify-content:space-between;gap:8px;font-size:10px;color:var(--muted)}kbd{font:10px Arial;border:1px solid #d4ded7;padding:2px 4px;border-radius:3px;margin-left:2px}.command-panel{padding:22px;margin-top:17px}.command-heading{display:flex;justify-content:space-between;align-items:center}.command-heading h2{font-size:19px;letter-spacing:-.4px;margin:7px 0 15px}.command-heading button{font-size:10px;padding:8px}form{display:flex;gap:8px}form input{min-width:0}form button{white-space:nowrap}.chips{display:flex;gap:6px;flex-wrap:wrap;margin-top:13px}.chips button{font-size:10px;padding:7px 9px;border-radius:20px;background:#f1f5ef}#feedback{font-size:12px;margin:13px 0 7px;color:var(--teal)}details{font-size:12px;color:var(--muted);line-height:1.7}summary{cursor:pointer;font-weight:bold}#commandList{display:grid;grid-template-columns:1fr 1fr;gap:4px;margin-top:9px}code{background:#edf3ec;padding:3px 5px;font-size:11px}.right-panel h2{font-size:28px;letter-spacing:-1px;line-height:1.15;margin:13px 0 25px}.mission{display:flex;gap:10px;margin-top:21px}.mission>span{flex-shrink:0;width:23px;height:23px;background:#e5f3e6;border-radius:50%;display:grid;place-items:center;color:var(--teal);font-size:11px;font-weight:700}.mission strong{font-size:12px}.mission p{font-size:12px;color:var(--muted);margin:5px 0}.divider{border-top:1px solid var(--line);margin:23px 0}.share-card{background:#e8f2e4;border-radius:9px;padding:15px;margin-top:23px}.share-card .eyebrow{font-size:8px}.share-card h3{font-size:18px;margin:9px 0}.share-card p,.share-card small{font-size:11px;line-height:1.6}.share-card small{display:block;color:var(--muted);margin-top:12px}.dark{background:var(--navy);color:white;border-color:var(--navy)}.dark:hover{background:#254a56}footer{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;color:#697b78;margin-top:25px;padding-top:18px;border-top:1px solid var(--line)}.accessible-editor{margin-top:16px}.accessible-editor label{display:inline-block;margin-right:10px}.accessible-editor input{width:80px}.touch-controls{display:flex;gap:8px;margin-top:10px}.touch-controls button:last-child{margin-left:auto}.sr-only{position:absolute;width:1px;height:1px;padding:0;overflow:hidden;clip:rect(0,0,0,0)}dialog{max-width:620px;border:0;border-radius:15px;padding:30px;color:var(--navy);box-shadow:0 15px 80px #102a3540}dialog::backdrop{background:#102a3580}.dialog-close{float:right}dialog h2{font-size:27px}dialog li{margin:15px 0;line-height:1.6}dialog p{font-size:13px}body.play-only .builder,body.play-only .right-panel,body.play-only .intro,body.play-only .command-panel,body.play-only .accessible-editor,body.play-only .header-actions,body.play-only footer{display:none}body.play-only .workspace{display:block;max-width:1100px;margin:auto}body.play-only #play{display:none}body.play-only main{padding-top:24px}@media(min-width:1500px){.workspace{grid-template-columns:260px minmax(420px,1fr) 250px}}@media(max-width:1150px){.workspace{grid-template-columns:215px minmax(420px,1fr)}.right-panel{grid-column:1/-1;display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px 25px}.right-panel>.eyebrow,.right-panel>h2,.divider{display:none}.mission{margin:0}.right-panel label{grid-column:1}.right-panel textarea{grid-column:1}.share-card{grid-column:2/4;grid-row:2/5;margin-top:10px}.stage-footer{flex-wrap:wrap}}@media(max-width:760px){header{padding:16px}.brand{font-size:16px}.tag{display:none}main{padding:24px 14px}.intro{display:block}.project-actions{margin-top:18px}.workspace{display:flex;flex-direction:column}.builder,.stage-column,.right-panel{width:100%}.builder{display:grid;grid-template-columns:1fr 1fr;gap:9px 15px}.builder .section-heading,.builder .hint,.builder .tools,.builder .player-card,.builder .starter-row{grid-column:1/-1}.builder .sub{margin-top:9px}.builder label{margin-top:3px}.builder .tools{grid-template-columns:repeat(9,1fr)}.tool{font-size:8px}.tool span{font-size:17px}.builder .row{grid-column:1/-1}.builder .player-card{display:none}.builder .bob-note{margin:0}.command-panel{padding:16px}.command-heading h2{font-size:17px}.right-panel{display:block}.right-panel .mission{margin:12px 0}.right-panel label{margin-top:20px}#levelLabel{display:none}footer span{display:none}}

.sprite-preview canvas{width:44px;height:45px;object-fit:contain}.tools{grid-template-columns:repeat(3,1fr)}@media(max-width:760px){.builder .tools{grid-template-columns:repeat(7,1fr)}}

.tool-help{padding:9px;background:#f1eef8;border-radius:7px;min-height:48px}.tool{min-width:0;overflow-wrap:anywhere}@media(max-width:760px){.builder .tool-help{grid-column:1/-1}.builder .tools{grid-template-columns:repeat(5,1fr)}}

.move-panel{margin-bottom:14px;border:1px solid #cbdcde;border-left:5px solid #497c91;border-radius:12px;background:#eef5f6;padding:15px 18px;min-height:135px}.move-top{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}.move-top button{padding:7px 9px;font-size:10px;background:#ffffffbb}.move-content{display:flex;align-items:center;gap:13px;min-height:65px}.move-icon{display:grid;place-items:center;border-radius:50%;width:40px;height:40px;flex-shrink:0;background:#d9e8ec;color:#315d70;font-size:22px;font-weight:bold}.move-badge{display:inline-block;color:#315d70;font-size:9px;letter-spacing:1.4px;font-weight:800}.move-content h2{font-size:19px;line-height:1.2;letter-spacing:-.3px;margin:5px 0}.move-content p{font-size:12px;color:#47626c;margin:5px 0 0;line-height:1.45}.move-panel.good{background:#eaf6ec;border-color:#b8d6bf;border-left-color:#27834c}.move-panel.good .move-icon{color:#196c39;background:#ccebd4}.move-panel.good .move-badge{color:#196c39}.move-panel.bad{background:#fff0ed;border-color:#e6bbb4;border-left-color:#b13f35}.move-panel.bad .move-icon{color:#9f3129;background:#f8d5ce}.move-panel.bad .move-badge{color:#9f3129}@media(max-width:760px){.move-panel{padding:13px;min-height:130px}.move-content h2{font-size:17px}.move-top .eyebrow{font-size:9px}.move-top button{font-size:9px}.move-content{gap:9px}}

.style-controls{margin-top:12px;padding:10px;background:#f0f5f0;border:1px solid var(--line);border-radius:8px}.style-controls summary{color:var(--teal);font-size:12px}.style-controls label{margin-top:9px}.style-brush{display:grid;grid-template-columns:55px 1fr;gap:8px}.style-brush input[type=color]{height:37px;width:100%;padding:3px}.style-brush select{padding:9px 5px;font-size:11px}#gameMode{width:auto;max-width:135px;padding:7px;font-size:10px}.starter-row+.wide{background:#edf0fb;border-color:#b7c6e6}@media(max-width:760px){.builder .style-controls,.builder #bounceStarter{grid-column:1/-1}.stage-bar{flex-wrap:wrap}#gameMode{max-width:110px}}

.tool[data-tile="X"] span,.tool[data-tile="R"] span,.tool[data-tile="T"] span{width:25px;height:25px;margin:0 auto 5px;display:grid;place-items:center;background:#458ae6;color:white;font-size:17px;border:2px solid white;outline:1px solid #458ae6;border-radius:2px}.tool[data-tile="R"] span{border-color:#e9b949}.tool[data-tile="T"] span{background:#133d72;border-color:#e9b949;border-radius:5px}

#backgroundColor{height:40px;padding:3px}#scenery{width:auto}#fullscreen[hidden]{display:none}#playStage:fullscreen,#playStage.expanded{background:#101e2a;width:100vw;height:100dvh;padding:10px;display:flex;flex-direction:column;align-items:stretch;gap:4px;overflow:auto}#playStage.expanded{position:fixed;inset:0;z-index:9999}body.expanded-play{overflow:hidden}#playStage:fullscreen .move-panel,#playStage.expanded .move-panel{min-height:0;margin:0;padding:7px 12px;flex-shrink:0}#playStage:fullscreen .move-top,#playStage.expanded .move-top{margin-bottom:2px}#playStage:fullscreen .move-content,#playStage.expanded .move-content{min-height:0}#playStage:fullscreen .move-content h2,#playStage.expanded .move-content h2{font-size:15px;margin:2px 0}#playStage:fullscreen .move-content p,#playStage.expanded .move-content p{margin:0;font-size:11px}#playStage:fullscreen .move-icon,#playStage.expanded .move-icon{width:28px;height:28px;font-size:17px}#playStage:fullscreen .stage-bar,#playStage.expanded .stage-bar{padding:5px 10px;flex-shrink:0}#playStage:fullscreen .canvas-wrap,#playStage.expanded .canvas-wrap{flex:1;min-height:100px;background:#101e2a;display:flex;align-items:center;justify-content:center}#playStage:fullscreen #game,#playStage.expanded #game{width:100%;height:100%;object-fit:contain}#playStage:fullscreen .stage-footer,#playStage.expanded .stage-footer{padding:5px 10px;flex-shrink:0}#playStage:fullscreen .touch-controls,#playStage.expanded .touch-controls{margin:0;flex-shrink:0}#playStage:fullscreen #gameMode,#playStage.expanded #gameMode{display:none}

.stage-actions{flex-wrap:wrap;justify-content:flex-end}#screenshot{white-space:nowrap}

.arcade-dialog{width:min(1050px,96vw);max-width:1050px;max-height:92dvh;padding:24px}.arcade-heading,.arcade-room-top,.arcade-play-heading{display:flex;align-items:center;justify-content:space-between;gap:16px}.arcade-heading h2{margin:6px 0;font-size:30px}.arcade-message{background:#eaf6ec;padding:12px;border-radius:8px;color:#145d37;line-height:1.5}.arcade-message.error{background:#fff0ed;color:#9f3129}.arcade-lobby-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.arcade-box{padding:18px;border:1px solid var(--line);border-radius:12px;background:#f7faf6}.arcade-box h3{margin:0 0 12px}.arcade-box form{display:block}.arcade-box form button{margin-top:12px}.arcade-box label{margin-top:12px}.arcade-resume{display:flex;gap:10px;margin:12px 0}.arcade-room-top h3{font-size:24px;margin:14px 0 5px}.arcade-room-top p{margin:6px 0}#arcadeClassCode{letter-spacing:2px;font-family:monospace;font-size:18px}.arcade-room-actions{display:flex;gap:10px;margin:16px 0}.arcade-games{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:20px}.arcade-game{border:1px solid var(--line);border-radius:12px;padding:16px;overflow-wrap:anywhere;background:#fff}.arcade-game h3{font-size:19px;margin:10px 0 5px}.arcade-game p{font-size:12px;margin:6px 0}.arcade-game-icon{font-size:30px;background:#e7f2df;border-radius:9px;padding:13px}.arcade-card-actions{display:flex;gap:7px;flex-wrap:wrap}.arcade-card-actions button{font-size:12px;padding:9px}.arcade-card-actions select{font-size:11px;padding:7px}.arcade-report{background:#fff0dc;padding:10px;border-radius:7px;color:#734d13}.arcade-key{padding:12px;border:1px solid #e5c788;background:#fff8e7;border-radius:9px}.arcade-key input{font-family:monospace;font-size:12px}.arcade-key button{margin-top:8px}.arcade-empty{grid-column:1/-1;padding:28px;background:#edf4eb;border-radius:10px;text-align:center}#arcadePlayDialog{width:98vw;max-width:none;height:96dvh;max-height:none;padding:8px;overflow:hidden}#arcadePlayDialog[open]{display:flex;flex-direction:column}.arcade-play-heading{padding:5px 8px}#arcadePlayer{border:0;flex:1;width:100%;min-height:0}.play-only #arcadeOpen,.play-only #arcadeDialog,.play-only #arcadePlayDialog{display:none}#arcadeDialog [hidden]{display:none!important}@media(max-width:760px){.arcade-lobby-grid,.arcade-games{grid-template-columns:1fr}.arcade-dialog{padding:16px}.arcade-room-top{align-items:flex-start;flex-direction:column}.header-actions{gap:6px}.header-actions button{font-size:11px;padding:8px}}

#arcadeBanner{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:18px 22px;margin-bottom:24px;background:#dcefd9;border:2px solid #71a381;border-radius:12px}#arcadeBanner strong{font-size:21px;color:#145941}#arcadeBanner p{margin:6px 0 0;color:#36594b}#arcadeBanner button{font-size:16px;padding:14px 22px}.play-only #arcadeBanner{display:none}@media(max-width:760px){#arcadeBanner{flex-direction:column;align-items:stretch}#arcadeBanner button{width:100%}}

.arcade-share-code{padding:14px 16px;background:#eaf5e8;border:1px solid #bdd6b9;border-radius:10px;display:grid;gap:6px}.arcade-share-code label{margin-top:4px}.arcade-copy-row{display:flex;align-items:center;gap:8px}.arcade-copy-row input{min-width:0}.arcade-copy-row button{white-space:nowrap;font-size:12px}#shareClassCode{font-family:monospace;letter-spacing:2px;font-weight:bold;font-size:18px;max-width:230px}#shareJoinLink{font-size:12px}.arcade-share-code .hint{margin:6px 0}#classCodeDialog{width:min(950px,96vw);max-width:950px;text-align:center;padding:35px}#largeClassCode{display:block;font-family:monospace;font-size:clamp(30px,7vw,82px);letter-spacing:4px;background:#dcefd9;padding:32px 12px;border-radius:12px;color:#145941}#classCodeDialog h2{font-size:32px}.play-only #classCodeDialog{display:none}@media(max-width:760px){.arcade-copy-row{flex-wrap:wrap}.arcade-copy-row input{flex:1;min-width:150px}.arcade-copy-row button{flex:1}}

.change-teacher-key{display:block;border-top:1px solid #e5c788;margin-top:16px;padding-top:6px}.change-teacher-key input{max-width:100%;font-family:Arial!important}.change-teacher-key h3{margin-bottom:6px}