:root{--cyan:#8bfff0;--ink:#0a1425;--text:#ecf4ff;--muted:#9badc5}*{box-sizing:border-box}body{background:#080f1b;color:var(--text);font:15px/1.5 Arial,sans-serif;margin:0}button{font:inherit;cursor:pointer;color:inherit;background:none;border:1px solid #ffffff26;border-radius:8px;padding:10px 15px}button:hover{background:#ffffff12}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #ffce88;outline-offset:3px}header{padding:20px 4vw;display:flex;align-items:center;justify-content:space-between;gap:16px}header>div{display:flex;gap:10px;align-items:center}#logo{text-decoration:none;color:var(--cyan);font-size:25px;display:flex;gap:12px;align-items:center}#logo b{letter-spacing:.22em;color:white}#logo span{font:10px monospace;letter-spacing:.22em;color:#abbcd2;border-left:1px solid #ffffff30;padding-left:16px;margin-left:6px}.tag{font:10px monospace;letter-spacing:.1em;color:var(--muted);margin-right:16px}header button{font-size:12px}main{max-width:1500px;margin:auto;padding:0 3vw}.stage{position:relative;aspect-ratio:16/9;border:1px solid #ffffff20;border-radius:14px;overflow:hidden;background:#102136;box-shadow:0 24px 80px #0005}canvas{width:100%;height:100%;display:block}#overlay{position:absolute;inset:0;display:flex;align-items:center;padding:6%;background:linear-gradient(90deg,#081427e8,#0b172964 55%,transparent)}#overlay.center{justify-content:center;background:#071020c9;backdrop-filter:blur(7px);overflow:auto}.panel{max-width:540px}.center .panel{width:560px;max-width:100%;padding:28px;background:#0e1e31e8;border:1px solid #ffffff22;border-radius:14px}.eyebrow{font:11px monospace;letter-spacing:.19em;color:var(--cyan);text-transform:uppercase}.line{width:40px;height:2px;background:var(--cyan);margin:20px 0}h1{font-size:clamp(42px,7.5vw,104px);line-height:.92;letter-spacing:-.05em;margin:20px 0 24px;font-weight:800}h1 em{font-style:normal;color:var(--cyan)}h2{font-size:32px;line-height:1.1;margin:12px 0 18px}p{color:#b9c9dd;max-width:390px;margin:12px 0 22px}.actions{display:flex;flex-wrap:wrap;gap:12px;margin:22px 0}.primary{background:var(--cyan);color:#112731;border-color:var(--cyan);font-weight:700;padding:14px 24px}.primary:hover{background:#c2fff7}.secondary{background:#152b41}.small{font:11px monospace;color:#9aaec4}.below{display:flex;justify-content:space-between;align-items:center;padding:18px 0;color:#91a5be;font-size:11px;gap:15px}kbd{font:10px monospace;color:#c6d6e9;border:1px solid #ffffff30;border-radius:4px;padding:4px 6px;margin:0 3px}i{display:inline-block;width:16px}#research{font-size:12px;border:0}footer{display:flex;justify-content:space-between;padding:20px 4vw;color:#637992;font:9px monospace;letter-spacing:.1em;gap:12px}#hud{position:absolute;top:24px;left:28px;right:28px;display:flex;justify-content:space-between;pointer-events:none;text-shadow:0 2px 8px #000}#hud[hidden]{display:none}#hud>div:first-child{display:flex;flex-direction:column}#hud span{font:12px monospace}#hud strong{font-size:15px;margin-top:5px}.counters{display:flex;gap:22px;align-items:flex-start}#touch{display:none;position:absolute;bottom:18px;left:18px;right:18px;justify-content:space-between;pointer-events:none}#touch>div{display:flex;gap:12px}#touch button{width:58px;height:54px;font-size:23px;background:#0b203aba;border-color:#97dcd34a;touch-action:none;user-select:none;pointer-events:auto}#message{position:absolute;bottom:28px;left:50%;transform:translateX(-50%);color:#b3fff4;background:#0c263be8;padding:9px 18px;border-radius:7px;font:12px monospace;text-align:center;pointer-events:none;opacity:0;transition:opacity .2s}.row{display:flex;gap:10px;align-items:center;margin:14px 0;color:#c0d0df}select,input[type=number]{background:#0a1727;color:white;border:1px solid #466076;border-radius:6px;padding:10px;width:100%}.row input[type=checkbox]{width:20px;height:20px;flex-shrink:0;accent-color:#8bfff0}.scroll{max-height:75vh;overflow:auto}.question{padding:9px 0;border-bottom:1px solid #ffffff16;font-size:13px}.ratings{display:flex;gap:6px;margin:8px 0}.ratings label{flex:1}.ratings input{position:absolute;opacity:0}.ratings span{border:1px solid #ffffff26;border-radius:4px;display:block;text-align:center;padding:6px}.ratings input:checked+span{background:var(--cyan);color:#08131e}.ratings input:focus-visible+span{outline:2px solid orange}.stats{display:flex;gap:32px;margin:20px 0}.stats b{font-size:32px;display:block;color:var(--cyan)}.stats span{font-size:11px;color:#adc4da}@media(pointer:coarse){#touch{display:flex}#message{bottom:85px}}@media(max-width:700px){header{padding:13px 4vw}.tag,#logo span{display:none}header button{padding:7px 9px;font-size:10px}main{padding:0 2vw}.stage{aspect-ratio:auto;height:70vh;min-height:430px}.below>span{display:none}footer{font-size:8px}.center .panel{padding:18px}.center{padding:16px!important}.scroll{max-height:58vh}h1{font-size:62px}h2{font-size:25px}#hud{left:15px;right:15px;top:15px}.counters{gap:12px}#hud span{font-size:10px}#hud strong{font-size:12px}.panel p{font-size:13px;max-width:270px}}

/* Touch play: full visible stage, safe areas, independent multitouch buttons. */
#touch{visibility:hidden} .playing #touch{visibility:visible}
#touch button.pressed{background:#8bfff0;color:#112731;transform:scale(.96)}
.stage{touch-action:pan-y} .stage.playing{touch-action:none}
#overlay{overflow:auto} .center{align-items:safe center!important} .scroll{overscroll-behavior:contain}
.below{flex-wrap:wrap} button:disabled{opacity:.55;cursor:wait}
@media(any-pointer:coarse){#touch{display:flex;bottom:max(12px,env(safe-area-inset-bottom));left:max(12px,env(safe-area-inset-left));right:max(12px,env(safe-area-inset-right))}#touch button{width:64px;height:58px;-webkit-user-select:none;-webkit-touch-callout:none}#message{bottom:82px;max-width:65%;font-size:10px}.stage{height:72svh;min-height:380px}.below>span{display:none}}
@media(max-width:950px) and (orientation:landscape){header{padding:5px 12px}#logo{font-size:18px}.tag,#logo span,footer{display:none}main{padding:0 8px}.stage{height:calc(100svh - 91px);min-height:220px;aspect-ratio:auto}.below{padding:4px 0;gap:4px}.below button{padding:5px 8px;font-size:10px}#overlay{padding:12px}.center .panel{padding:14px;max-height:100%;overflow:auto}.scroll{max-height:none}h1{font-size:44px;margin:8px 0}h2{font-size:23px;margin:8px 0}.line{margin:8px 0}.actions{margin:12px 0}#hud{top:10px;left:12px;right:12px}#hud span{font-size:10px}#hud strong{font-size:12px}#touch button{height:48px;width:58px}.panel p{margin:10px 0;font-size:13px}}

.level-picker{display:flex;gap:6px;flex-wrap:wrap;margin:16px 0}.level-picker button{font-size:10px;padding:8px;background:#0e2038cc;text-align:left;max-width:145px}.level-picker b{display:block;font:16px monospace;color:#8bfff0;margin-bottom:2px}#overlay:not(.center) .panel{max-width:620px}#overlay:not(.center){background:linear-gradient(90deg,#081427f0,#081427b0 55%,transparent)}.stage{isolation:isolate}#hud{z-index:1}#touch{z-index:3}#overlay{z-index:4}#message{z-index:5}#hud .counters{white-space:nowrap}@media(max-width:700px){.level-picker button{font-size:9px;max-width:110px;padding:6px}h1{font-size:50px}}@media(max-height:500px){#overlay:not(.center){align-items:flex-start}#overlay:not(.center) .panel{padding:8px}.level-picker{margin:8px 0}.level-picker b{display:inline;margin-right:6px;font-size:12px}#overlay:not(.center) h1{font-size:38px;margin:8px 0}.eyebrow{font-size:9px}}