:root{color-scheme:dark;--bg:#09162d;--panel:#13233f;--cyan:#ffe296;--pink:#ff997d;--lime:#9fffca;--muted:#acbdd9;--line:#334865}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 20% 0,#373859 0,transparent 55%),radial-gradient(ellipse at 90% 35%,#244c54 0,transparent 50%),var(--bg);color:#f1f7ff;font-family:system-ui,-apple-system,sans-serif;min-height:100vh}button,input,select{font:inherit}button,a{touch-action:manipulation}button{border:1px solid var(--line);border-radius:12px;padding:12px 17px;background:#1b304f;color:inherit;cursor:pointer;min-height:46px;font-weight:700;transition:background .15s,transform .15s}button:hover{background:#29436b}button:active{transform:translateY(2px)}button:disabled{opacity:.5;cursor:wait}.primary{color:#09233b;background:var(--cyan);border-color:var(--cyan);box-shadow:0 5px 0 #28728c}.primary:hover{background:#b2f3ff}a{color:var(--cyan)}:focus-visible{outline:3px solid var(--lime);outline-offset:3px}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(2.5rem,6vw,4.7rem);line-height:.98;letter-spacing:-.05em;margin-bottom:25px}h1 span{color:var(--cyan)}h2{font-size:1.7rem}h3{margin-bottom:10px}p{line-height:1.6}.shell{max-width:1200px;margin:0 auto;padding:0 25px}.topbar{max-width:1260px;padding:16px 25px;display:flex;gap:22px;align-items:center;margin:auto}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:white;font-weight:900;letter-spacing:.04em;font-size:1.2rem}.brand img{object-fit:contain;filter:drop-shadow(0 4px 9px #0008)}.brand b{color:var(--cyan)}.brand small{display:block;font-size:.58rem;color:var(--muted);margin-top:6px;letter-spacing:.12em}.topbar nav{display:flex;gap:7px;margin-left:auto}.topbar nav button{background:transparent;border-color:transparent;padding:9px 12px}.portal{text-decoration:none;font-size:.8rem;white-space:nowrap}.eyebrow{font:800 .73rem ui-monospace,monospace;letter-spacing:.13em;color:var(--cyan)}.hero{display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:center;padding:42px 0 30px}.hero-copy>p{color:var(--muted);max-width:510px;font-size:1.05rem}.pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:22px}.pill{border:1px solid #3d5575;border-radius:30px;font-size:.75rem;padding:7px 12px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-art{position:relative;min-height:355px;border:1px solid #4d6386;border-radius:30px;padding:22px;background:linear-gradient(145deg,#203459bb,#101d35);box-shadow:0 25px 70px #0005;overflow:hidden}.hero-art canvas{width:100%;aspect-ratio:11/9;display:block}.hero-cart{position:absolute;width:104px;right:10px;top:-6px;transform:rotate(11deg);filter:drop-shadow(5px 12px 10px #000a)}.art-label{display:flex;justify-content:space-between;font:800 .7rem ui-monospace,monospace;color:var(--muted);margin-bottom:10px}.caption{font-size:.8rem;color:var(--cyan);text-align:center;margin:12px 0 0}.worlds{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:25px 0 40px}.world{padding:23px;background:#142743aa;border:1px solid var(--line);border-radius:19px}.world-number{font:900 .8rem ui-monospace,monospace;color:var(--pink);margin-bottom:12px;display:block}.world p{font-size:.88rem;color:var(--muted);margin-bottom:0}.world button{margin-top:15px;font-size:.8rem}.status-line{min-height:25px;font-size:.87rem;color:var(--pink);margin-top:18px}.arena{padding:16px;border-radius:24px;border:1px solid #405572;background:#0d1b33;box-shadow:0 15px 45px #0005}.arena:fullscreen{border-radius:0;display:flex;flex-direction:column;justify-content:center;max-width:none;width:100%;overflow:auto;padding:12px 4vw;background:#09162d}.arena:fullscreen .board-layout{width:min(1150px,100%);margin:0 auto}.arena:fullscreen #board{max-height:70vh;width:auto;max-width:100%;margin:auto}.arena:fullscreen .hud{width:min(1150px,100%);margin:0 auto 10px}.hud{display:flex;gap:12px;align-items:center;justify-content:space-between;margin-bottom:12px}.hud-title strong{display:block;font-size:1.2rem}.hud-title small{font:700 .68rem ui-monospace,monospace;color:var(--cyan)}.hud-metrics{display:flex;gap:15px;font:800 .8rem ui-monospace}.hud-metrics span{color:var(--lime)}.hud-tools{display:flex;gap:6px}.hud-tools button{padding:6px 11px;min-height:40px}.board-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:16px}.board-wrap{position:relative;border-radius:18px;overflow:hidden;background:#08142a;border:1px solid #33476a}#board{display:block;width:100%;aspect-ratio:11/9;touch-action:none;outline-offset:-5px}.paused-overlay{display:none;position:absolute;inset:0;background:#061124cc;align-items:center;justify-content:center;flex-direction:column;gap:15px}.paused-overlay.visible{display:flex}.sidepanel{display:flex;flex-direction:column;gap:13px}.objective{padding:17px;background:#172943;border-radius:15px;font-size:.86rem}.objective p{color:var(--muted);margin:0}.objective h3{font-size:1rem}.coords{display:flex;gap:10px;font:800 .8rem ui-monospace}.coords span{padding:10px 12px;border-radius:10px;background:#162a46;color:var(--cyan)}.coords span+span{color:var(--pink)}.control-note{color:var(--muted);font-size:.78rem;line-height:1.5}.dpad{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(2,49px);gap:7px;justify-content:center}.dpad button{font-size:1.15rem;padding:0}.dpad [data-dir=up]{grid-column:2}.dpad [data-dir=left]{grid-column:1;grid-row:2}.dpad [data-dir=down]{grid-column:2;grid-row:2}.dpad [data-dir=right]{grid-column:3;grid-row:2}.mirror-control{display:flex;align-items:center;justify-content:space-between;gap:5px;border:1px solid #5d5076;padding:10px;border-radius:14px}.mirror-control span{font:700 .72rem ui-monospace,monospace;text-align:center}.mirror-control button{padding:0;width:38px;min-height:38px}.feedback{margin:14px 0 0;border-radius:12px;background:#193049;border-left:4px solid var(--cyan);padding:12px 15px;font-size:.86rem;min-height:52px}.progress{display:flex;gap:5px;margin-bottom:18px}.progress i{height:6px;background:#2d4160;flex:1;border-radius:5px}.progress i.done{background:var(--cyan)}.progress i.current{background:var(--pink)}.mini-actions{display:flex;gap:8px}.mini-actions button{flex:1;padding:9px;font-size:.8rem}.panel{background:#142640;border:1px solid var(--line);border-radius:23px;padding:30px;margin:25px 0}label{display:block;font-size:.86rem;font-weight:700;margin-bottom:8px}input,select{width:100%;border:1px solid #516583;background:#0a1b32;color:white;padding:12px;border-radius:10px;min-height:46px}.record-form,.filters{display:grid;grid-template-columns:1fr 1.4fr 1fr;gap:16px}.record-form button{grid-column:1/-1;width:100%}.record-form p{grid-column:1/-1;margin:0;color:var(--muted);font-size:.8rem}.score-big{font:900 clamp(3rem,8vw,5rem) ui-monospace,monospace;color:var(--cyan);margin:0}.result-head{display:flex;justify-content:space-between;gap:20px;align-items:center}.result-head img{width:125px}.summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:20px 0}.summary-grid>div{background:#1c3452;border-radius:14px;padding:18px}.summary-grid strong{display:block;color:var(--lime);font-size:1.8rem}.summary-grid small{color:var(--muted)}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.88rem;margin-top:20px}th{text-align:left;font-size:.75rem;color:var(--muted);letter-spacing:.06em}td,th{padding:14px 10px;border-bottom:1px solid #30415d}td:first-child{font-family:ui-monospace,monospace;color:var(--lime)}td small{display:block;color:var(--muted);margin-top:5px}.empty{padding:25px;text-align:center;color:var(--muted)}dialog{width:min(750px,calc(100% - 25px));max-height:92vh;border:1px solid #667191;border-radius:23px;background:#13243f;color:white;padding:25px;box-shadow:0 15px 90px #000b}dialog::backdrop{background:#040917cf;backdrop-filter:blur(7px)}.dialog-head{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:15px}.dialog-head h2{margin:0}.dialog-head button{font-size:1.4rem;padding:0;width:44px}#shape-canvas{width:100%;max-height:55vh;aspect-ratio:11/9;object-fit:contain;background:#07182b;border:1px solid var(--line);border-radius:15px;touch-action:none}#shape-status{font-size:.86rem;min-height:26px;color:var(--cyan);margin:12px 0}.shape-actions{display:flex;gap:10px;justify-content:space-between;flex-wrap:wrap}.guide-copy{color:var(--muted);font-size:.9rem}.guide-copy h3{color:white;margin-top:22px}#room-dialog{text-align:center;max-width:460px}#room-dialog button{width:100%}footer{margin-top:35px!important;margin-bottom:25px!important;color:var(--muted);font-size:.73rem;display:flex;justify-content:space-between;gap:20px}footer p{margin:0}.skip{position:absolute;left:15px;top:-100px;z-index:10;background:var(--cyan);color:#062133;padding:12px}.skip:focus{top:5px}.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(max-width:850px){.topbar{flex-wrap:wrap;gap:8px 15px}.topbar nav{order:3;justify-content:center;width:100%;margin:0}.portal{margin-left:auto}.hero{gap:25px;grid-template-columns:1fr 1fr;padding-top:25px}.hero-art{min-height:0;padding:12px}.hero-cart{width:77px}.board-layout{grid-template-columns:minmax(0,1fr) 190px}.hud-metrics{font-size:.7rem;gap:8px}.world{padding:18px}.arena{padding:12px}.sidepanel{gap:9px}.objective{padding:12px}.control-note{font-size:.7rem}}
@media(max-width:620px){.shell{padding:0 13px}.topbar{padding:12px 15px}.brand{font-size:1rem}.brand img{width:46px;height:58px}.hero{grid-template-columns:1fr;gap:22px;padding:25px 0 10px}.hero-art{max-width:480px;width:100%;margin:auto}.hero-copy>p{font-size:.95rem}.hero-art canvas{max-height:300px}.hero-cart{width:85px}.worlds{grid-template-columns:1fr;margin:20px 0;gap:10px}.world{padding:17px}.world-number{margin-bottom:7px}.world h3{font-size:1.05rem}.board-layout{grid-template-columns:1fr;gap:10px}.sidepanel{display:grid;grid-template-columns:1fr 1fr;gap:9px;align-items:center}.objective{grid-column:1/-1}.coords{font-size:.7rem}.coords span{padding:8px}.dpad{grid-row:3/6;grid-column:1}.control-note{grid-column:1/-1;margin-bottom:0}.mirror-control{grid-column:1/-1}.feedback{font-size:.78rem;margin-top:10px}.hud{flex-wrap:wrap;gap:8px}.hud-title strong{font-size:1rem}.hud-tools{margin-left:auto}.hud-tools button{font-size:.8rem;padding:5px 8px}.hud-metrics{order:3;width:100%;justify-content:space-between}.panel{padding:20px}.record-form,.filters{grid-template-columns:1fr}.summary-grid{gap:7px}.summary-grid>div{padding:12px}.summary-grid strong{font-size:1.4rem}.summary-grid small{font-size:.7rem}.result-head img{width:85px}.result-head h2{font-size:1.2rem}footer{display:block;font-size:.65rem}footer span{display:block;margin-top:8px}.arena:fullscreen #board{max-height:49vh}.arena:fullscreen .sidepanel{grid-template-columns:1fr 1fr}.arena:fullscreen .objective,.arena:fullscreen .control-note{display:none}.arena:fullscreen .dpad{grid-row:2/5}.arena:fullscreen .feedback{min-height:35px;padding:8px}.arena:fullscreen{padding:10px}.shape-actions button{font-size:.8rem}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}

.keyboard-trace{font-size:.8rem;margin:10px 0 17px;color:var(--muted)}.keyboard-trace summary{cursor:pointer;padding:8px 0}.keyboard-trace form{padding:12px;background:#1b304c;border-radius:12px}.keyboard-trace input{padding:8px;min-width:0}.keyboard-trace button{margin-top:10px}
.hero-art{min-height:0}.hero-art canvas{aspect-ratio:16/9}.hero-cart{width:112px;top:8px}#board{aspect-ratio:16/9}.board-layout{grid-template-columns:minmax(0,1fr) 250px}.reactor-controls{display:flex;gap:10px;justify-content:center}.reactor-controls button{min-width:54px;font-size:1.1rem;padding:10px}.reactor-controls .jump{min-width:80px;background:#366251;border-color:#67af93}.circuit{display:flex;gap:9px;flex-wrap:wrap;align-items:center;padding:18px;background:#0b2031;border:1px solid #476575;border-radius:16px;margin:15px 0}.circuit-label{width:100%;font:.72rem monospace;color:#b9c8d1;margin-top:5px}.slot{width:52px;height:52px;border:2px dashed #648290;background:#153244;padding:0;font:900 1.1rem monospace;border-radius:10px;min-height:52px}.slot.filled{border-style:solid;border-color:#edc37d;color:#ffe8b1;background:#584933}.slot.over{background:#52786a;border-color:#b5ffda}.rule-slot{color:#a9ffe0}.palette{display:flex;gap:6px;flex-wrap:wrap;margin:12px 0}.chip{width:40px;height:40px;min-height:40px;padding:0;background:#314b53;border:1px solid #71958f;border-radius:9px;color:#f4ebc8;font:900 1rem monospace;touch-action:none;user-select:none}.chip.selected{background:#f3d28b;color:#173746;border-color:#ffe7a7}.chip.dragging{opacity:.55}.machine-mission{padding:14px 17px;background:#293b48;border-left:4px solid #ffd78d;border-radius:10px;color:#f9ebc9;font-size:.91rem}.machine-preview{padding:13px 16px;border-radius:13px;background:#183c45;display:flex;justify-content:space-between;align-items:center;gap:15px;margin:15px 0;font:700 .86rem monospace}.machine-preview strong{color:#a9ffdb;font-size:1.2rem}.testing{margin-top:24px;padding-top:17px;border-top:1px solid #426373}.testing h3{font-size:1.05rem}.charge-row{display:flex;align-items:center;gap:10px}.charge-row button{padding:9px 12px}.charge-row input{padding:0;min-width:40px;width:auto;flex:1;accent-color:#ffd58b}.testing p{font-size:.8rem;color:var(--muted);margin:12px 0}.samples{display:flex;gap:8px;flex-wrap:wrap}.sample{padding:8px 11px;background:#19364a;border-radius:8px;font:.75rem monospace}.sample.pass{color:#a3ffd9}.sample.blocked{color:#ffbbaa}#machine-status{font-size:.85rem;line-height:1.5;margin:15px 0}.hint-reference{padding:15px;background:#2a4447;border-radius:13px;font:700 .84rem monospace;color:#c7ffe7}#machine-dialog{max-width:750px}.sidepanel .math-live{padding:14px;background:#283c46;border:1px solid #506a70;border-radius:13px;color:#ffe6a4;font:800 .86rem monospace;line-height:1.5}.hero-art .caption{font-size:.75rem}.paused-overlay h2{margin-bottom:0}.drag-ghost{position:fixed;pointer-events:none;z-index:99999;padding:8px 14px;background:#ffe6a0;color:#143044;border-radius:10px;font:900 1.1rem monospace;box-shadow:0 7px 20px #0007}.slot:focus-visible{outline:3px solid #aaffdf}
@media(max-width:850px){.board-layout{grid-template-columns:1fr}.sidepanel{display:grid;grid-template-columns:1fr 1fr;align-items:center}.objective{grid-column:1/-1}.control-note{grid-column:1/-1;margin:0}.reactor-controls{grid-column:1}.sidepanel .mini-actions{grid-column:1/-1}.sidepanel .math-live{grid-column:1/-1}.hero-cart{width:83px}.hero-art canvas{min-height:200px}}
@media(max-width:620px){.hero-art canvas{min-height:0;max-height:none}.hero-art{padding:12px 7px}.hero-cart{width:73px;top:-4px}.board-layout{gap:10px}.reactor-controls{gap:7px;grid-row:auto}.reactor-controls button{min-width:46px;min-height:50px;padding:6px}.reactor-controls .jump{min-width:65px;font-size:.8rem}.circuit{gap:6px;padding:12px}.slot{width:41px;height:43px;min-height:43px;font-size:.96rem}.charge-row{gap:6px;flex-wrap:wrap}.charge-row #probe{width:100%}.chip{width:35px;height:38px;min-height:38px}.machine-preview{font-size:.75rem;padding:11px}.machine-mission{font-size:.83rem;padding:12px}.testing{margin-top:19px}#machine-dialog{padding:18px}.arena:fullscreen #board{max-height:42vh;width:100%}.arena:fullscreen .reactor-controls{grid-row:auto}.arena:fullscreen .sidepanel .math-live{padding:8px}.hero-copy h1{font-size:2.65rem}}

/* Onboarding follows the same four actions as the playable rooms. */
[hidden]{display:none!important}.player-coach{display:flex;gap:20px;align-items:center;justify-content:space-between;background:#213d49;border:1px solid #5e877e;border-radius:16px;padding:16px 19px;margin-bottom:14px}.player-coach .eyebrow{display:block;margin-bottom:5px;font-size:.66rem}.player-coach h3{margin:0 0 5px;font-size:1.15rem}.player-coach p{margin:0;max-width:700px;color:#d0e0eb;font-size:.88rem;line-height:1.5}.player-coach button{flex:none;max-width:210px;background:#ffe296;color:#12344b;border-color:#ffe296}.intro-lead{color:#d3e2f1}.howto-steps{list-style:none;counter-reset:steps;display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:0;margin:18px 0}.howto-steps li{counter-increment:steps;background:#1c3545;border:1px solid #3d5d69;border-radius:14px;padding:16px}.howto-steps li:before{content:counter(steps);display:grid;place-items:center;background:#ffe296;color:#183746;border-radius:50%;width:28px;height:28px;font-weight:900;margin-bottom:10px}.howto-steps b{font-size:1rem}.howto-steps p{font-size:.85rem;color:#c4d9e8;margin:7px 0 0}.howto-steps strong{color:#ffe296}#howto-go{width:100%}.machine-coach{padding:14px 16px;border-radius:12px;background:#234d50;border:1px solid #5d9383;margin:12px 0}.machine-coach strong{color:#ffe296;font-size:1.08rem}.machine-coach p{color:#d4ede8;margin:5px 0 0;font-size:.86rem;line-height:1.5}.training-values{display:flex;gap:10px;margin:12px 0}.training-values button{flex:1;background:#304d58;border-color:#93c7ad}.energy-picture{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:12px;padding:15px;background:#0d293a;border-radius:13px;margin:15px 0}.energy-picture b{font-size:.82rem}.energy-picture>p{grid-column:1/-1;margin:0;color:#ffe296;font-size:.82rem}.energy-picture>div p{font-size:.78rem}.energy-arrow{font-weight:900;color:#a4ffdb;font-size:1.4rem}.mini-pieces{display:flex;flex-wrap:wrap;gap:4px;margin-top:10px}.mini-battery{display:block;position:relative;width:14px;height:22px;border:1px solid #b3ffed;background:#63bfaf;border-radius:3px}.mini-battery:before{content:'';position:absolute;left:4px;top:-3px;width:5px;height:3px;background:#caffec}.mini-bridge{display:block;width:19px;height:13px;background:#f6cf81;border:1px solid #ffe6b0;border-radius:3px}.training-connected #circuit,.training-connected #palette,.training-connected #connect,.training-connected #piece-instructions{display:none}.next-chip{outline:3px solid #ffe296;outline-offset:3px;box-shadow:0 0 15px #ffe29666}#machine-back{flex:1}#machine-edit{font-size:.8rem}.sidepanel .reactor-controls{touch-action:none}#interact:disabled{cursor:default;opacity:.65}#interact{font-size:.88rem}
@media(max-width:850px){.player-coach{padding:13px;gap:13px}.player-coach h3{font-size:1rem}.player-coach p{font-size:.82rem}.player-coach button{font-size:.8rem;max-width:170px}.sidepanel .reactor-controls{grid-column:1}.sidepanel .control-note{display:none}}
@media(max-width:620px){.player-coach{display:block;padding:12px}.player-coach button{margin-top:10px;width:100%;max-width:none;padding:8px}.howto-steps{grid-template-columns:1fr;gap:8px}.howto-steps li{padding:12px 14px}.howto-steps li:before{float:left;margin:0 10px 5px 0;width:25px;height:25px}.howto-steps p{clear:both}.howto-steps b{font-size:.9rem}.energy-picture{gap:8px;padding:12px}.machine-coach{padding:12px}.machine-coach strong{font-size:.96rem}.machine-coach p{font-size:.8rem}.training-values{gap:7px}.training-values button{font-size:.82rem;padding:10px}.arena:fullscreen .player-coach{padding:9px}.arena:fullscreen .player-coach p{font-size:.75rem}.arena:fullscreen .player-coach button{margin-top:6px;min-height:36px}.arena:fullscreen #board{max-height:33vh}}

.guided-training .chip{width:64px;height:54px;min-height:54px;font-size:1.3rem}.guided-training .slot{width:58px;height:54px;min-height:54px}.guided-training .palette{justify-content:center;gap:16px;padding:6px}.guided-training .circuit{justify-content:center}.guided-training .circuit-label{text-align:center}
@media(max-width:620px){.topbar nav{flex-wrap:wrap;gap:3px}.topbar nav button{padding:8px 7px;font-size:.82rem}}

#machine-dialog .shape-actions{position:sticky;bottom:-1px;z-index:2;background:#13243f;padding:12px 0 4px;box-shadow:0 -8px 12px #13243f;border-top:1px solid #426373}#howto-go{position:sticky;bottom:0}

.guided-training.training-connected .machine-mission{display:none}.guided-training .charge-row #charge,.guided-training .charge-row #charge-minus,.guided-training .charge-row #charge-plus{display:none}.guided-training .charge-row #probe{width:100%}

[hidden]{display:none!important}.inverse-lab{margin:18px 0;padding:16px;border:1px solid #78dac966;border-radius:18px;background:#0b2935}.inverse-lab h3{margin:0}.inverse-scene{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:12px;margin:18px 0}.balance-pan{min-width:0;min-height:120px;padding:12px;display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;border-bottom:6px solid #8befd2;background:#19394b;border-radius:12px}.unknown-crate{display:grid;place-items:center;width:45px;height:45px;border:2px solid #ffd788;border-radius:9px;background:#675232;color:#ffdf99;font-size:26px;font-weight:800}.equals-sign{font-size:32px;color:#a4ffe0}.inverse-action{display:block;width:100%;text-align:center;padding:6px;background:#72dfc6;color:#082737;border-radius:7px;font-weight:800;animation:inverse-pop .45s ease-out}.inverse-buttons{display:grid;grid-template-columns:1fr 1fr;gap:8px}.inverse-buttons button{font-size:14px;padding:12px 8px}.inverse-done .balance-pan{border-color:#ffdf8d}.inverse-lab #inverse-use{margin-top:12px}.circuit .slot:disabled{opacity:1;cursor:default}.machine-preview{flex-wrap:wrap;gap:10px}.energy-picture .mini-pieces{flex-wrap:wrap}.balance-pan .mini-pieces{justify-content:center;flex-wrap:wrap}@keyframes inverse-pop{from{transform:translateY(-12px);opacity:0}to{transform:translateY(0);opacity:1}}@media(prefers-reduced-motion:reduce){.inverse-action{animation:none}}

.inverse-lab summary{cursor:pointer;color:#ffdf99;font-weight:800;min-height:34px}.removed-piece{display:block;width:19px;height:13px;border:1px dashed #a4b9cb;background:linear-gradient(135deg,transparent 42%,#ff9c8a 43%,#ff9c8a 57%,transparent 58%);border-radius:3px;opacity:.55}.inverse-action{animation:none}.inverse-done .mini-bridge{animation:inverse-pop .4s ease-out}@media(prefers-reduced-motion:reduce){.inverse-done .mini-bridge{animation:none}}

/* Glass overlays remain part of the playable landscape stage. */
[hidden]{display:none!important}.arcade-expanded{overflow:hidden;overscroll-behavior:none}.immersive.arena{position:fixed;inset:0;z-index:1000;width:100vw;height:100vh;height:100dvh;max-width:none;padding:0;border:0;border-radius:0;overflow:hidden;display:block;background:#071327}.landscape-stage{position:absolute;inset:0;width:100%;height:100%;background:radial-gradient(ellipse at center,#203855,#071327);overflow:hidden;--edge-left:max(14px,env(safe-area-inset-left));--edge-right:max(14px,env(safe-area-inset-right));--edge-top:max(12px,env(safe-area-inset-top));--edge-bottom:max(14px,env(safe-area-inset-bottom))}.landscape-stage.rotated{inset:auto;left:50%;top:50%;width:100dvh;height:100vw;transform:translate(-50%,-50%) rotate(90deg);--edge-left:max(14px,env(safe-area-inset-top));--edge-right:max(14px,env(safe-area-inset-bottom));--edge-top:max(12px,env(safe-area-inset-left));--edge-bottom:max(14px,env(safe-area-inset-right))}.landscape-stage .board-layout,.landscape-stage .sidepanel{display:contents!important}.immersive .board-wrap{position:absolute;inset:0;border:0;border-radius:0;background:transparent;display:flex;align-items:center;justify-content:center}.arena.immersive #board{flex:none;max-width:none;max-height:none;margin:0;aspect-ratio:auto}.arena.immersive .hud{position:absolute;left:var(--edge-left);top:var(--edge-top);z-index:3;width:auto;max-width:calc(100% - 330px);margin:0;display:flex;flex-direction:column;align-items:flex-start;gap:6px;border-radius:16px;padding:9px 13px;pointer-events:none}.immersive .hud-title small{font-size:10px;letter-spacing:.02em}.immersive .hud-title strong{font-size:16px}.immersive .hud-metrics{display:flex;order:initial;gap:12px;font-size:11px;width:auto}.immersive #mission-mode{display:none}.immersive .hud-tools{position:fixed;top:var(--edge-top);right:var(--edge-right);display:flex;pointer-events:auto;gap:7px}.immersive .hud-tools button{width:48px;height:52px;padding:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;font-size:20px;border-radius:13px}.immersive .hud-tools small{font:700 9px system-ui}.arena.immersive button,.immersive .hud,.immersive .objective,.immersive .player-coach,.immersive .math-live,.immersive .coords span,.immersive .mirror-control,.immersive .feedback,.immersive #coordinate-form{background:linear-gradient(145deg,#ffffff26,#a0ccff12);border:1px solid #ffffff61;box-shadow:inset 0 1px 0 #ffffff33,0 7px 22px #0003;backdrop-filter:blur(14px) saturate(145%);-webkit-backdrop-filter:blur(14px) saturate(145%);color:#f5fffd;text-shadow:0 1px 4px #0009}.immersive button{touch-action:manipulation;min-height:44px;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none;-webkit-tap-highlight-color:transparent}.immersive button:active,.immersive button.touch-pressed{background:#d4fff035;transform:scale(.95)}.immersive .sidepanel>.control-note{display:none}.immersive .mini-actions{position:absolute;top:var(--edge-top);right:calc(var(--edge-right) + 166px);z-index:4;gap:7px}.immersive .mini-actions button{min-width:60px;height:52px;padding:5px 8px;font-size:10px;border-radius:13px}.immersive .feedback{position:absolute;left:50%;bottom:var(--edge-bottom);transform:translateX(-50%);width:min(46%,570px);max-height:58px;overflow:auto;z-index:2;margin:0;font-size:11px;padding:7px 10px;min-height:0;line-height:1.35;pointer-events:auto}.immersive .paused-overlay{z-index:9;background:#071327aa;backdrop-filter:blur(5px);gap:15px}.immersive .paused-overlay h2{font-size:22px}.immersive .paused-overlay button{min-width:180px}.immersive .control-note{font-size:12px}.fullscreen-tip{font-size:12px;color:var(--muted);text-align:center}.immersive .fullscreen-tip{display:none}.number-stepper{display:none}.immersive .number-stepper{display:flex;align-items:center;gap:6px}.immersive .number-stepper button{width:44px;padding:0;font-size:20px}.immersive .number-stepper input{width:50px;min-width:0;text-align:center;padding:6px;font-size:16px}.immersive .number-stepper label{margin:0}
/* Dialogs use the same landscape workspace, with reachable actions and scrollable work. */
.arcade-expanded dialog[open]{position:fixed;inset:auto;left:50%;top:50%;margin:0;transform:translate(-50%,-50%);width:min(1050px,calc(100vw - 28px));max-width:none;height:auto;max-height:calc(100dvh - 28px);padding:16px;border-radius:20px;background:#112a40ef;border-color:#c5edff66;box-shadow:0 20px 90px #0008;overflow:auto}.arcade-expanded dialog::backdrop{background:#040c1d99;backdrop-filter:blur(5px)}.arcade-expanded dialog .dialog-head{gap:12px;margin-bottom:10px}.arcade-expanded dialog .dialog-head h2{font-size:19px}.arcade-expanded dialog button{min-height:44px;font-size:12px}.arcade-expanded #room-dialog{width:min(480px,calc(100vw - 28px))}.arcade-expanded #room-dialog p{font-size:13px;margin:10px 0}.arcade-expanded #room-dialog .score-big{font-size:44px}.arcade-expanded #guide{height:calc(100dvh - 28px)}.arcade-expanded #guide .guide-copy{max-height:calc(100% - 60px);overflow:auto}.arcade-expanded #howto-dialog{height:calc(100dvh - 28px);display:flex;flex-direction:column}.arcade-expanded #howto-dialog .howto-scroll{overflow:auto;flex:1;min-height:0}.arcade-expanded #howto-go{flex:none;position:static;margin-top:8px}.arcade-expanded .dialog-head{flex:none}.arcade-expanded #machine-dialog{height:calc(100dvh - 28px);display:flex;flex-direction:column;overflow:hidden}.machine-workspace{display:contents}.machine-left,.machine-right,.machine-footer{display:contents}.arcade-expanded .machine-workspace{display:grid;grid-template-columns:1.1fr 1fr;gap:16px;flex:1;min-height:0;overflow:hidden}.arcade-expanded .machine-left,.arcade-expanded .machine-right{display:block;overflow:auto;min-width:0;min-height:0;padding:2px 6px 10px 0;overscroll-behavior:contain}.arcade-expanded .machine-footer{display:flex;flex-direction:column;flex:none;gap:6px;padding-top:8px;border-top:1px solid #b4ecff33}.arcade-expanded #machine-status{font-size:12px;line-height:1.35;margin:0;max-height:36px;overflow:auto;color:#d5fff1}.arcade-expanded #machine-dialog .shape-actions{position:static;box-shadow:none;border:0;background:transparent;padding:0;gap:8px}.arcade-expanded .machine-mission{font-size:13px;line-height:1.5;padding:10px;margin:0 0 8px}.arcade-expanded .machine-coach{font-size:12px;margin:7px 0;padding:8px}.arcade-expanded .machine-coach strong{font-size:14px}.arcade-expanded .machine-coach p{font-size:12px}.arcade-expanded #piece-instructions{font-size:11px;line-height:1.4;margin:8px 0}.arcade-expanded .circuit{gap:6px;padding:10px;flex-wrap:wrap}.arcade-expanded .slot,.arcade-expanded .chip{width:44px;height:44px;min-height:44px;font-size:16px;border-radius:10px}.arcade-expanded .palette{gap:6px}.arcade-expanded .circuit-label{font-size:11px}.arcade-expanded .machine-preview{font-size:13px;padding:8px;margin:8px 0}.arcade-expanded .testing{margin:0}.arcade-expanded .testing h3{font-size:14px;margin:0 0 8px}.arcade-expanded .testing label{font-size:12px}.arcade-expanded .charge-row{display:flex;gap:6px;flex-wrap:wrap}.arcade-expanded .charge-row #charge{flex:1;width:80px;min-width:60px;min-height:44px;touch-action:none}.arcade-expanded .charge-row #probe{width:100%;min-height:44px}.arcade-expanded #sample-requirement{font-size:11px;margin:8px 0}.arcade-expanded .energy-picture{margin:8px 0;padding:8px;gap:8px}.arcade-expanded .energy-picture p{font-size:11px}.arcade-expanded .inverse-lab{padding:10px;margin:8px 0}.arcade-expanded .inverse-lab p{font-size:12px}.arcade-expanded .inverse-scene{margin:8px 0;gap:8px}.arcade-expanded .balance-pan{min-height:80px;padding:8px}.arcade-expanded .unknown-crate{width:30px;height:30px;font-size:20px}.arcade-expanded .inverse-buttons{gap:6px}.arcade-expanded .inverse-buttons button{min-height:44px;font-size:11px;padding:8px}.arcade-expanded .hint-reference{font-size:12px;padding:8px}.arcade-expanded #shape-dialog{height:calc(100dvh - 28px);overflow:hidden;display:flex;flex-direction:column}.shape-workspace{display:contents}.shape-tools{display:contents}.arcade-expanded .shape-workspace{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(200px,1fr);gap:16px;flex:1;min-height:0}.arcade-expanded #shape-canvas{align-self:center;justify-self:center;display:block;max-height:none;max-width:100%;aspect-ratio:11/9;object-fit:fill;border:0}.arcade-expanded .shape-tools{display:flex;flex-direction:column;gap:10px;overflow:auto;min-height:0}.arcade-expanded #shape-description{font-size:13px;line-height:1.45;margin:0}.arcade-expanded #shape-status{font-size:12px;margin:0;color:#aaffdf}.arcade-expanded .shape-actions{display:flex;flex-direction:column;gap:8px;margin-top:auto}.arcade-expanded .keyboard-trace{font-size:12px;margin:0}.arcade-expanded .keyboard-trace form{padding:6px}.arcade-expanded .trace-inputs{display:grid!important;grid-template-columns:1fr 1fr;gap:6px}.arcade-expanded .trace-inputs input{display:none}.arcade-expanded .trace-inputs .number-stepper input{display:block;width:40px}.arcade-expanded .trace-inputs .number-stepper{gap:3px;flex-wrap:wrap}.arcade-expanded .trace-inputs .number-stepper button{width:44px}.arcade-portrait dialog[open]{transform:translate(-50%,-50%) rotate(90deg);width:min(1050px,calc(100dvh - 28px));max-height:calc(100vw - 28px)}.arcade-portrait #machine-dialog,.arcade-portrait #shape-dialog,.arcade-portrait #guide,.arcade-portrait #howto-dialog{height:calc(100vw - 28px)}.arcade-portrait #room-dialog{width:min(480px,calc(100dvh - 28px))}
/* Mirror: the square grid stays clear between the two control clusters. */
.arcade-mirror.immersive .dpad{position:absolute;left:var(--edge-left);bottom:var(--edge-bottom);z-index:4;grid-template-columns:repeat(3,48px);grid-template-rows:repeat(2,48px);gap:5px}.arcade-mirror.immersive .dpad button{border-radius:15px;font-size:22px}.arcade-mirror.immersive #interact{position:absolute;right:var(--edge-right);bottom:var(--edge-bottom);width:138px;height:62px;z-index:4;border-radius:20px;font-size:14px}.arcade-mirror.immersive .objective{position:absolute;right:var(--edge-right);top:80px;width:144px;z-index:3;padding:10px;border-radius:14px}.arcade-mirror.immersive .objective h3{font-size:13px;margin:0 0 5px}.arcade-mirror.immersive .objective p{font-size:11px;line-height:1.4;color:#deedff}.arcade-mirror.immersive .coords{position:absolute;left:var(--edge-left);top:100px;display:flex;flex-direction:column;gap:6px;z-index:3;font-size:11px}.arcade-mirror.immersive .coords span{padding:7px 10px}.arcade-mirror.immersive .mirror-control{position:absolute;right:var(--edge-right);bottom:calc(var(--edge-bottom) + 72px);width:138px;z-index:4;display:flex;padding:6px;gap:4px}.arcade-mirror.immersive .mirror-control button{min-width:44px;min-height:44px;width:44px}.arcade-mirror.immersive .mirror-control span{font-size:9px}.arcade-mirror.immersive #coordinate-form{position:absolute;right:var(--edge-right);top:80px;width:185px;padding:9px;border-radius:14px;z-index:5;display:flex;flex-direction:column;gap:6px}.arcade-mirror.immersive #coordinate-form label{font-size:12px;margin:0}.arcade-mirror.immersive #coordinate-form>.coordinate-inputs{display:none!important}.arcade-mirror.immersive #coordinate-form>.number-stepper input{display:block;width:38px}.arcade-mirror.immersive #coordinate-form button[type=submit]{padding:6px;font-size:11px}.arcade-mirror.immersive .feedback{width:calc(100% - 360px)}
/* Reactor: simultaneous run and jump, with the circuit bench above the jump pad. */
.arcade-reactor.immersive .reactor-controls{display:contents}.arcade-reactor.immersive [data-hold]{position:absolute;bottom:var(--edge-bottom);z-index:4;width:68px;height:68px;border-radius:50%;padding:0;font-size:30px;touch-action:none}.arcade-reactor.immersive [data-hold=left]{left:var(--edge-left)}.arcade-reactor.immersive [data-hold=right]{left:calc(var(--edge-left) + 78px)}.arcade-reactor.immersive #jump{position:absolute;bottom:var(--edge-bottom);right:var(--edge-right);z-index:4;width:88px;height:88px;border-radius:50%;padding:0;font-size:16px;touch-action:none}.arcade-reactor.immersive #interact{position:absolute;right:var(--edge-right);bottom:calc(var(--edge-bottom) + 100px);z-index:4;width:100px;min-height:46px;border-radius:16px;padding:7px;font-size:12px}.arcade-reactor.immersive .player-coach{position:absolute;left:var(--edge-left);top:100px;z-index:3;margin:0;padding:8px 11px;max-width:min(60%,580px);border-radius:14px;gap:8px;display:flex}.arcade-reactor.immersive .player-coach h3{font-size:13px;margin:0}.arcade-reactor.immersive #coach-step{font-size:9px;margin:0 0 4px}.arcade-reactor.immersive .player-coach p{display:none}.arcade-reactor.immersive #coach-action{font-size:10px;min-height:44px;padding:5px 8px;max-width:150px;margin:0}.arcade-reactor.immersive .math-live{position:absolute;right:var(--edge-right);top:82px;z-index:3;max-width:36%;font-size:12px;padding:8px 10px;border-radius:12px}.arcade-reactor.immersive .feedback{width:calc(100% - 340px)}
@media(max-height:420px) and (orientation:landscape),(max-width:420px) and (orientation:portrait){.arena.immersive .hud{max-width:calc(100% - 330px);padding:7px 10px;gap:4px}.immersive .hud-title strong{font-size:13px}.immersive .hud-title small{font-size:9px}.immersive .hud-metrics{font-size:10px}.immersive .coords{top:85px}.immersive .feedback{max-height:42px;font-size:10px}.arcade-reactor.immersive .player-coach{top:84px}.arcade-expanded dialog[open]{padding:10px}.arcade-expanded .dialog-head{margin-bottom:6px}.arcade-expanded .dialog-head h2{font-size:16px}.arcade-expanded .machine-workspace,.arcade-expanded .shape-workspace{gap:10px}.arcade-expanded .machine-footer{padding-top:6px}.arcade-expanded .machine-mission{font-size:12px}.arcade-expanded #shape-description{font-size:12px}}

.arcade-expanded .drag-ghost{position:absolute}

dialog:not([open]){display:none!important}

.arcade-expanded #machine-dialog{width:min(1050px,calc(100vw - 28px))}.arcade-portrait #machine-dialog{width:min(1050px,calc(100dvh - 28px))}
/* One task at a time: equation and touch pieces share the visible workspace. */
.wizard-only{display:none}.focused-workshop .wizard-only{display:flex}#machine-dialog.focused-workshop[open]{width:min(1100px,calc(100vw - 16px));height:calc(100dvh - 16px);max-height:calc(100dvh - 16px);padding:10px 14px;border-radius:18px;background:#0b2337f5;gap:6px}.arcade-portrait #machine-dialog.focused-workshop[open]{width:min(1100px,calc(100dvh - 16px));height:calc(100vw - 16px);max-height:calc(100vw - 16px)}#machine-dialog.focused-workshop .dialog-head{height:44px;min-height:44px;margin:0;align-items:center}#machine-dialog.focused-workshop .dialog-head h2{font-size:19px;margin:0}#machine-dialog.focused-workshop .dialog-head button{width:44px;height:44px;min-height:44px;padding:0;font-size:24px;flex:none}#machine-dialog.focused-workshop #machine-steps{position:absolute;top:10px;left:50%;transform:translateX(-50%);gap:6px;height:44px}#machine-dialog.focused-workshop #machine-steps button{font-size:12px;padding:6px 12px;min-height:44px;border:1px solid #92c9ff44;background:#b4e2ff08;color:#cce4ee}#machine-dialog.focused-workshop #machine-steps .current{color:#092536;background:#b8ffe3;border-color:#b8ffe3}#machine-dialog.focused-workshop .machine-workspace{display:block;position:relative;flex:1;min-height:0;overflow:hidden;margin:0}#machine-dialog.focused-workshop .machine-left,#machine-dialog.focused-workshop .machine-right{display:contents;overflow:visible;padding:0}#machine-dialog.focused-workshop .machine-coach,#machine-dialog.focused-workshop .machine-preview,#machine-dialog.focused-workshop #connect,#machine-dialog.focused-workshop .machine-footer .shape-actions,#machine-dialog.focused-workshop .machine-mission,#machine-dialog.focused-workshop #mission-variable,#machine-dialog.focused-workshop #piece-instructions,#machine-dialog.focused-workshop #circuit,#machine-dialog.focused-workshop #palette,#machine-dialog.focused-workshop #quick-solve,#machine-dialog.focused-workshop #energy-testing,#machine-dialog.focused-workshop #inverse-lab,#machine-dialog.focused-workshop #machine-hint{display:none!important}#machine-dialog.focused-workshop[data-step=story] .machine-workspace{overflow:auto;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px}#machine-dialog.focused-workshop[data-step=story] .machine-mission{display:block!important;background:transparent;border:0;padding:0;margin:0;max-width:730px;font-size:clamp(15px,2.1vw,21px);line-height:1.55;color:#f2faff}#machine-dialog.focused-workshop[data-step=story] #mission-variable{display:block!important;color:#a2eddd;font-size:13px;margin:0;max-width:730px;width:100%}#machine-dialog.focused-workshop[data-step=story] #machine-hint:not([hidden]){display:block!important;font-size:13px;padding:8px;max-width:730px;color:#ffe5a0}#machine-dialog.focused-workshop[data-step=build] .machine-workspace{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:8px}#machine-dialog.focused-workshop[data-step=build] #piece-instructions{display:block!important;text-align:center;color:#cae9ed;font-size:12px;line-height:1.2;margin:0;height:16px;flex:none}#machine-dialog.focused-workshop[data-step=build] #circuit{display:flex!important;justify-content:center;align-items:center;gap:6px;padding:6px 10px;margin:0;background:#ffffff07;border:1px solid #82c8d233;border-radius:15px;max-width:100%;flex:none;min-height:58px;flex-wrap:wrap}#machine-dialog.focused-workshop #circuit .circuit-label{display:none}#machine-dialog.focused-workshop #circuit .slot{width:48px;height:48px;min-height:48px;font-size:21px;border-radius:11px;border:1px solid #adf0e877;background:#d7fff00b;color:#f2ffff;padding:0;flex:none;box-shadow:none}#machine-dialog.focused-workshop #circuit .slot:disabled{opacity:1}#machine-dialog.focused-workshop #circuit .active-slot{outline:3px solid #fadd90;outline-offset:2px;background:#fadd9029;color:#ffeab1;box-shadow:0 0 20px #fadd9022}#machine-dialog.focused-workshop[data-step=build] #palette{display:flex!important;flex-wrap:wrap;justify-content:center;gap:6px;max-width:790px;flex:none;padding:3px;margin:0;background:transparent;align-items:center}#machine-dialog.focused-workshop #palette .chip{width:48px;height:48px;min-height:48px;padding:0;font-size:21px;border-radius:12px;border:1px solid #a5dfd566;background:#a5e5e50e;color:#e9ffff;touch-action:manipulation;box-shadow:none;flex:none}#machine-dialog.focused-workshop #palette .chip[hidden]{display:none!important}#machine-dialog.focused-workshop[data-step=solve] #quick-solve{display:flex!important;flex-direction:column;align-items:center;justify-content:center;gap:8px;height:100%;min-height:0}#machine-dialog.focused-workshop #solve-relation{display:flex;align-items:center;justify-content:center;gap:16px;font:800 clamp(24px,3.5vw,40px) ui-monospace,monospace;color:#ffdf95;min-height:42px;flex-wrap:wrap}#machine-dialog.focused-workshop #solve-relation b{color:#94ffe0}#machine-dialog.focused-workshop #solve-instruction{font-size:14px;line-height:1.25;margin:0;color:#d2e7ee}#machine-dialog.focused-workshop #battery-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;max-width:790px}#machine-dialog.focused-workshop #battery-grid[hidden]{display:none!important}#machine-dialog.focused-workshop #battery-grid button{width:48px;height:48px;min-height:48px;border-radius:12px;padding:0;font-size:19px;color:#e4fffa;background:#c9fff30d;border:1px solid #99ddcc66}#machine-dialog.focused-workshop #battery-grid .chosen{background:#b9ffe3;color:#082936;border-color:#b9ffe3;box-shadow:0 0 15px #b9ffe322}#machine-dialog.focused-workshop #solve-result{font-size:13px;line-height:1.25;margin:0;color:#ffe6a0;min-height:18px;text-align:center}#machine-dialog.focused-workshop #solve-result.correct{color:#96ffcf}#machine-dialog.focused-workshop .sensor-check{padding:6px 15px;border:1px solid #ffa29266;border-radius:12px;font-size:26px;color:#ffc3a3}#machine-dialog.focused-workshop .sensor-check.valid{border-color:#94ffd466;color:#94ffd4}#machine-dialog.focused-workshop .machine-footer{flex:none;border:0;padding:0;gap:6px;display:flex;flex-direction:column}#machine-dialog.focused-workshop #wizard-controls{display:flex;align-items:center;gap:8px;justify-content:center}#machine-dialog.focused-workshop #wizard-controls button{min-height:46px;height:46px;padding:8px 15px;font-size:13px;border-radius:13px}#machine-dialog.focused-workshop #wizard-next{min-width:180px;margin-left:auto;background:#b8ffe3;color:#092a35;border-color:#b8ffe3;box-shadow:none;text-shadow:none;font-size:16px;font-weight:800}#machine-dialog.focused-workshop #wizard-next:disabled{background:#b8ffe314;color:#b3ceca;opacity:.8;border-color:#b8ffe344}#machine-dialog.focused-workshop #machine-status{font-size:11px;line-height:1.2;text-align:center;max-height:28px;overflow:auto;margin:0}#machine-dialog.focused-workshop[data-step=bonus] .machine-workspace{overflow:auto;padding:0 4px}#machine-dialog.focused-workshop[data-step=bonus] #inverse-lab:not([hidden]),#machine-dialog.focused-workshop[data-step=bonus] #energy-testing:not([hidden]){display:block!important;max-width:730px;margin:0 auto 10px}#machine-dialog.focused-workshop .inverse-lab summary{display:none}#machine-dialog.focused-workshop[data-step=bonus] #wizard-next{display:none}#machine-dialog.focused-workshop[data-step=bonus] #wizard-bonus{margin-left:auto}
@media(max-height:420px) and (orientation:landscape),(max-width:420px) and (orientation:portrait){#machine-dialog.focused-workshop .dialog-head h2{font-size:15px;max-width:30%}#machine-dialog.focused-workshop #machine-steps{gap:4px}#machine-dialog.focused-workshop #machine-steps button{padding:5px 8px;font-size:11px}#machine-dialog.focused-workshop[data-step=story] .machine-mission{font-size:16px}#machine-dialog.focused-workshop #circuit .slot,#machine-dialog.focused-workshop #palette .chip,#machine-dialog.focused-workshop #battery-grid button{width:44px;height:44px;min-height:44px;font-size:19px}#machine-dialog.focused-workshop #palette,#machine-dialog.focused-workshop #battery-grid{gap:5px;max-width:690px}#machine-dialog.focused-workshop #solve-relation{font-size:27px;min-height:34px}#machine-dialog.focused-workshop #solve-result{font-size:12px}#machine-dialog.focused-workshop #wizard-controls button{font-size:12px;padding:6px 11px}#machine-dialog.focused-workshop #wizard-next{min-width:170px;font-size:14px}}
@media(max-height:340px) and (orientation:landscape),(max-width:340px) and (orientation:portrait){#machine-dialog.focused-workshop[open]{padding:6px 10px;gap:4px}#machine-dialog.focused-workshop #machine-steps{top:6px}#machine-dialog.focused-workshop[data-step=build] .machine-workspace{gap:5px}#machine-dialog.focused-workshop[data-step=story] .machine-workspace{gap:8px}#machine-dialog.focused-workshop[data-step=story] .machine-mission{font-size:14px}#machine-dialog.focused-workshop #circuit{padding:4px 8px;min-height:52px}#machine-dialog.focused-workshop #quick-solve{gap:5px}#machine-dialog.focused-workshop #wizard-controls button{height:44px;min-height:44px}#machine-dialog.focused-workshop #solve-instruction{font-size:12px}#machine-dialog.focused-workshop #solve-relation{font-size:24px;min-height:30px}}

.circuit-expression,.circuit-sensor{display:contents}#machine-dialog.focused-workshop .circuit-expression,#machine-dialog.focused-workshop .circuit-sensor{display:flex;align-items:center;gap:6px}#machine-dialog.focused-workshop .circuit-sensor{border-left:1px solid #a3ead544;padding-left:10px;margin-left:4px}#machine-dialog.focused-workshop .circuit-sensor>span{font-size:21px;font-weight:800}#machine-dialog.focused-workshop .circuit-expression small{font-size:10px;color:#b5d6df}

#machine-dialog.focused-workshop[open]{max-width:none}#machine-dialog.focused-workshop button{transition:none}.arcade-reactor.immersive .math-live{display:none}.arcade-reactor.immersive .feedback:not(.show-event){display:none}.arcade-reactor.immersive .feedback.show-event{font-size:12px;max-height:32px;padding:6px 10px}

/* Original chiptune controls. Music is independent of sound effects. */
.music-button{flex:none!important;min-width:44px!important;min-height:44px!important;touch-action:manipulation!important;cursor:pointer}.topbar .music-button{width:44px;padding:5px!important;font-size:22px;border:1px solid #a8cbd555;border-radius:10px;background:#ffffff0b}.music-button.music-muted{opacity:.75}.music-button small{font:700 9px system-ui}.topbar nav{flex-wrap:wrap}.topbar #sound-toggle{min-width:44px;min-height:44px}.immersive .music-button{pointer-events:auto!important}

.immersive .mini-actions{right:calc(var(--edge-right) + 221px)}.arena.immersive .hud{max-width:calc(100% - 386px)}

/* Same focused lesson flow on phone, tablet, page and fullscreen. */
#lesson-example{display:none}#machine-dialog.focused-workshop[data-step=example] #lesson-example{display:block!important;max-width:730px;margin:auto;color:#e5f4ff}#machine-dialog.focused-workshop[data-step=example] .machine-workspace{overflow:auto;display:flex;align-items:center;padding:8px}#lesson-example h3{font-size:20px;margin:0 0 10px}#lesson-example p{font-size:15px;line-height:1.5;margin:8px 0}.worked-equation{font:800 20px ui-monospace,monospace;color:#ffda91;padding:10px;background:#ffffff09;border-radius:10px}#machine-dialog.focused-workshop #solve-instruction{font-size:13px;text-align:center;max-width:650px}#machine-dialog.focused-workshop #solve-result{max-width:730px;line-height:1.4}#machine-dialog.focused-workshop #machine-status{font-size:12px;line-height:1.35;max-height:48px;border-radius:8px;background:#ffda9110;padding:6px}#machine-dialog.focused-workshop #machine-status[hidden]{display:none}body:not(.arcade-expanded) #machine-dialog.focused-workshop[open]{height:min(760px,94dvh);max-height:94dvh}body:not(.arcade-expanded) #machine-dialog.focused-workshop #machine-steps{position:static;transform:none;justify-content:center;flex:none}#machine-dialog.focused-workshop .machine-workspace{min-width:0}.arcade-expanded #lesson-example h3{font-size:17px}.arcade-expanded #lesson-example p{font-size:12px;margin:5px 0}.arcade-expanded .worked-equation{padding:6px;font-size:17px}.arcade-expanded #machine-dialog.focused-workshop #solve-instruction,.arcade-expanded #machine-dialog.focused-workshop #solve-result{font-size:11px}
@media(max-width:600px){body:not(.arcade-expanded) #machine-dialog.focused-workshop[data-step=build] .machine-workspace,body:not(.arcade-expanded) #machine-dialog.focused-workshop[data-step=solve] .machine-workspace{overflow:auto}body:not(.arcade-expanded) #machine-dialog.focused-workshop #circuit{flex-wrap:wrap}body:not(.arcade-expanded) #machine-dialog.focused-workshop #battery-grid{gap:5px}body:not(.arcade-expanded) #machine-dialog.focused-workshop #wizard-controls{flex-wrap:wrap}body:not(.arcade-expanded) #machine-dialog.focused-workshop #wizard-next{min-width:140px}}
#machine-dialog.focused-workshop[open]{display:flex;flex-direction:column}body:not(.arcade-expanded) #machine-dialog.focused-workshop[open]{height:min(660px,94dvh)}body:not(.arcade-expanded) #machine-dialog.focused-workshop #machine-status{max-height:none}