:root{color-scheme:dark;--bg:#101b23;--panel:#14232c;--ink:#ecf0de;--muted:#91a59f;--lime:#c7f19a;--line:#2a3c43}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:14px system-ui,-apple-system,'Segoe UI',sans-serif}a{color:inherit;text-decoration:none}button,input,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer;min-height:44px;border:1px solid var(--line);border-radius:4px;background:transparent;color:inherit;padding:10px 16px;transition:background .18s,transform .18s}button:hover{background:#23363e}button:active{transform:translateY(1px)}button:disabled{opacity:.35;cursor:default}button:focus-visible,a:focus-visible,canvas:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--lime);outline-offset:3px}.topbar{max-width:1360px;margin:auto;padding:17px 34px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}.topbar .site-brand{display:flex;align-items:center;gap:16px}.topbar .site-brand-image{width:42px!important;height:42px!important}.topbar span,.topbar>a:last-child{font:10px ui-monospace,monospace;letter-spacing:1.4px}main{max-width:1240px;margin:auto;padding:0 25px}.title-row{display:flex;align-items:end;justify-content:space-between;padding:30px 0 24px}.eyebrow{font:9px ui-monospace,monospace;letter-spacing:1.6px;margin:0 0 12px;color:var(--muted)}h1{font-size:clamp(32px,5.4vw,68px);font-weight:800;letter-spacing:-3.5px;line-height:1;margin:0}h1 span{color:var(--lime)}.title-row>p{font-size:12px;line-height:1.5;margin:0 0 3px;color:var(--muted)}.play-layout{display:grid;grid-template-columns:minmax(0,770px) minmax(230px,1fr);gap:32px;align-items:start}.arena{border:1px solid #38514f;border-radius:8px;overflow:hidden;background:#112129}.hud{display:flex;align-items:center;justify-content:space-between;padding:13px 20px;background:#172830;border-bottom:1px solid var(--line)}.hud>span{display:grid;gap:3px}.hud small{font:8px ui-monospace,monospace;letter-spacing:1.2px;color:var(--muted)}.hud b{font:23px ui-monospace,monospace;font-weight:600}.hud>button{padding:7px 14px}.viewport{position:relative;aspect-ratio:720/680;background:#0b1921;overflow:hidden}#scene{width:100%;height:100%;display:block;touch-action:none}.overlay{position:absolute;left:50%;top:48%;transform:translate(-50%,-30%);width:min(90%,440px);text-align:center;background:#0c1a22ed;padding:28px 18px;border-top:1px solid #688667;border-bottom:1px solid #334e4b;box-shadow:0 0 90px 40px #0b1921a0}.overlay h2{font-size:clamp(27px,3.2vw,42px);font-weight:650;line-height:1.1;letter-spacing:-1.8px;margin:10px 0 17px}.overlay>p:not(.eyebrow){font-size:12px;line-height:1.7;color:#b0c1b5}.primary{background:var(--lime);color:#172a25;border-color:var(--lime);font-weight:700;padding:13px 25px}.primary:hover{background:#dafab9}.primary span{margin-left:27px}.secondary{display:block;font-size:11px;border:0;margin:6px auto 0;padding:5px 14px;min-height:36px}.overlay .hint{font:9px ui-monospace,monospace!important;letter-spacing:.4px;margin-bottom:0!important}.launch-cue{position:absolute;bottom:15%;left:0;width:100%;text-align:center;font:11px ui-monospace,monospace;color:var(--lime);pointer-events:none}.progress{position:absolute;bottom:0;height:3px;width:100%;background:#1e3239}.progress>div{height:100%;width:0;background:var(--lime);transition:width .2s}.toolbar{padding:7px 12px;display:flex;align-items:center;gap:12px;justify-content:space-between;border-top:1px solid var(--line)}.toolbar p{font-size:10px;color:var(--muted);margin:0}kbd{font:10px ui-monospace,monospace;padding:3px 4px;background:#253740;border-radius:3px;margin-right:3px}.toolbar>button{font-size:11px}.touch{display:none;gap:8px}.touch button{min-width:56px;font-size:20px;touch-action:none}.power-bar{padding:11px 16px;min-height:42px;border-top:1px solid var(--line);font:10px ui-monospace,monospace;color:#b1c4ad;display:flex;flex-wrap:wrap;align-items:center;gap:12px}.power-bar span{white-space:nowrap}.power-bar b{color:var(--lime);margin-right:5px}.variation-heading{margin-bottom:16px}.variation-heading h2{font-size:31px;line-height:1.05;letter-spacing:-1.3px;font-weight:550;margin:0 0 14px}.variation-heading>p:last-child{font-size:11px;line-height:1.6;color:var(--muted);margin:0}#variations{display:grid}#variations button{border:0;border-radius:0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:24px 1fr 13px;align-items:center;text-align:left;gap:9px;padding:11px 5px;min-height:46px;font-size:12px;position:relative}#variations button small{font:9px ui-monospace,monospace;color:var(--muted)}#variations button span{line-height:1.25}#variations button i{font-style:normal;font-size:10px;color:var(--lime)}#variations button[aria-current=true]{color:var(--lime);background:#c7f19a0d}#variations button[aria-current=true]:before{content:'';position:absolute;left:-7px;top:12px;bottom:12px;background:var(--lime);width:2px}.side-foot{font:9px ui-monospace,monospace;color:var(--muted);line-height:1.8;padding-top:12px;letter-spacing:.3px}.utility{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:16px 0 28px}.utility>p{font-size:11px;line-height:1.6;color:var(--muted);max-width:620px;margin:0;min-height:18px}.utility>div{display:flex;align-items:center;gap:14px;flex-shrink:0}.utility label{display:flex;align-items:center;gap:6px;font-size:10px;cursor:pointer;min-height:44px}.utility input{accent-color:var(--lime);width:15px;height:15px}.utility button{font-size:10px;padding:7px 10px}.power-guide{border-top:1px solid var(--line)}.power-guide summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;padding:25px 0}.power-guide summary::-webkit-details-marker{display:none}.power-guide summary strong{display:block;font-size:25px;letter-spacing:-.7px;font-weight:500}.power-guide summary small{display:block}.expand{font:12px ui-monospace,monospace;color:var(--muted)}.power-guide ul{padding:0 0 22px;margin:0;list-style:none;display:grid;grid-template-columns:repeat(4,1fr);column-gap:24px}.power-guide li{display:grid;grid-template-columns:29px 1fr;gap:10px;padding:17px 0;border-top:1px solid var(--line)}.power-icon{font:16px ui-monospace,monospace;color:var(--lime);width:27px;height:30px;border:1px solid #57745e;border-radius:4px;display:grid;place-items:center}.power-guide li strong{font-size:11px;font-weight:600}.power-guide li p{font-size:10px;line-height:1.6;color:var(--muted);margin:6px 0 0}.how{border-top:1px solid var(--line);padding:26px 0 35px}.how h2{font-size:22px;letter-spacing:-.6px;font-weight:500}.how p{max-width:820px;font-size:12px;line-height:1.8;color:var(--muted)}.how nav{display:flex;gap:25px;font-size:11px;margin-top:24px;color:var(--lime)}footer{border-top:1px solid var(--line);padding:23px 0;display:flex;justify-content:space-between;gap:15px;font:9px ui-monospace,monospace;color:var(--muted)}[hidden]{display:none!important}body.reduced *{transition:none!important}@media(max-width:900px){.play-layout{gap:22px;grid-template-columns:minmax(0,1fr) 220px}.toolbar{gap:6px}.toolbar p{font-size:9px}.toolbar kbd{font-size:9px}.power-guide ul{grid-template-columns:repeat(3,1fr)}.utility{align-items:start}.utility>div{gap:6px;flex-wrap:wrap;max-width:280px;justify-content:end}}@media(max-width:650px){.topbar{padding:11px 17px}.topbar .site-brand{gap:9px}.topbar span{font-size:8px;letter-spacing:.6px}.topbar>a:last-child{font-size:9px}main{padding:0 14px}.title-row{padding:23px 0 20px}.title-row .eyebrow{font-size:7px;letter-spacing:.7px}h1{font-size:35px;letter-spacing:-1.8px}.title-row>p{display:none}.play-layout{display:block}.hud{padding:11px 14px}.hud b{font-size:20px}.hud small{font-size:7px}.overlay{top:42%;padding:17px 12px;transform:translate(-50%,-25%);width:90%}.overlay .eyebrow{font-size:8px;margin-bottom:7px}.overlay h2{font-size:26px;letter-spacing:-.9px;margin:9px 0}.overlay>p:not(.eyebrow){font-size:10px;line-height:1.5;margin:9px 0}.overlay .hint{font-size:8px!important}.overlay .primary{padding:10px 22px;min-height:44px}.toolbar p{display:none}.touch{display:flex}.toolbar>button{min-width:80px}.power-bar{font-size:9px;gap:8px;min-height:40px;padding:10px 12px}.side{margin-top:26px}.variation-heading{display:flex;justify-content:space-between;align-items:end;gap:10px}.variation-heading .eyebrow{display:none}.variation-heading h2{font-size:24px;margin:0}.variation-heading h2 br{display:none}.variation-heading>p:last-child{font-size:9px;max-width:115px}#variations{grid-template-columns:1fr 1fr;column-gap:18px}#variations button{font-size:11px;padding:10px 3px;grid-template-columns:19px 1fr 9px;gap:4px}#variations button[aria-current=true]:before{left:-4px}.side-foot{display:flex;justify-content:space-between;font-size:8px;gap:9px}.utility{display:flex;flex-direction:column-reverse;gap:10px;padding:10px 0 25px}.utility>div{max-width:none;justify-content:start;gap:12px}.utility>p{font-size:10px}.power-guide summary{padding:22px 0}.power-guide summary strong{font-size:20px;max-width:270px;line-height:1.2}.power-guide ul{grid-template-columns:repeat(2,1fr);column-gap:18px}.power-guide li{grid-template-columns:25px 1fr;gap:7px}.power-guide li p{font-size:9px}.power-guide li strong{font-size:10px}.power-icon{width:24px;height:28px;font-size:14px}.how p{font-size:11px}.how nav{gap:18px;font-size:10px}footer{font-size:8px;line-height:1.6}footer span:last-child{text-align:right;max-width:160px}.launch-cue{font-size:9px;bottom:13%}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Keep the complete field visible, including on short laptop and phone screens. */
.viewport{max-height:max(180px,calc(100svh - 360px))}
#view{font-size:10px;letter-spacing:0;white-space:nowrap}
.overlay{top:50%;transform:translate(-50%,-50%);max-height:calc(100% - 16px);overflow-y:auto;overscroll-behavior:contain}
body.play-view{overflow:hidden;overscroll-behavior:none}
body.play-view .topbar,body.play-view .title-row,body.play-view .side,body.play-view .utility,body.play-view .power-guide,body.play-view .how,body.play-view footer{display:none}
body.play-view .arena{position:fixed;inset:max(8px,env(safe-area-inset-top)) max(8px,env(safe-area-inset-right)) max(8px,env(safe-area-inset-bottom)) max(8px,env(safe-area-inset-left));z-index:50;display:grid;grid-template-rows:auto minmax(0,1fr) auto auto;grid-template-columns:minmax(0,1fr);max-width:none;min-width:0;min-height:0}
body.play-view .viewport{aspect-ratio:auto;width:100%;height:100%;max-height:none;min-height:0}
body.play-view .hud{gap:8px;padding:9px 14px}
body.play-view .hud b{font-size:20px}
body.play-view .hud>button{padding:7px 10px}
body.play-view .power-bar{flex-wrap:nowrap;overflow-x:auto;min-width:0;height:42px;min-height:42px;white-space:nowrap;scrollbar-width:thin}
body.play-view .power-bar span{flex-shrink:0}
body.play-view .overlay{padding:20px 16px}
body.play-view .overlay h2{font-size:clamp(24px,4vw,38px)}
@media(max-width:650px){
  .hud{gap:6px;padding:10px}
  .hud>button{padding:7px 9px}
  .hud b{font-size:18px}
  #view{font-size:9px}
  body.play-view .hud{gap:6px;padding:8px}
  body.play-view .hud b{font-size:18px}
  body.play-view .hud>button{padding:7px 8px}
}
/* A side rail leaves the field tall enough in phone landscape. */
@media(max-height:500px) and (min-aspect-ratio:6/5){
  body.play-view .arena{grid-template-columns:minmax(0,1fr) 174px;grid-template-rows:auto auto minmax(0,1fr)}
  body.play-view .viewport{grid-column:1;grid-row:1/4}
  body.play-view .hud{grid-column:2;grid-row:1;display:grid;grid-template-columns:1fr 1fr;padding:8px;gap:6px;border-left:1px solid var(--line)}
  body.play-view .hud>span{gap:1px}
  body.play-view .hud small{font-size:7px}
  body.play-view .hud b{font-size:17px}
  body.play-view .hud>button{min-height:40px;padding:6px}
  body.play-view .toolbar{grid-column:2;grid-row:2;flex-wrap:wrap;justify-content:center;padding:7px;gap:6px;border-left:1px solid var(--line)}
  body.play-view .toolbar p{display:none}
  body.play-view .touch{display:flex;gap:6px}
  body.play-view .touch button{min-width:56px}
  body.play-view .toolbar>button{width:100%}
  body.play-view .power-bar{grid-column:2;grid-row:3;height:auto;min-height:0;overflow:auto;flex-wrap:wrap;align-content:start;align-items:start;padding:10px;gap:10px;border-left:1px solid var(--line);font-size:9px}
  body.play-view .overlay{width:min(90%,400px);padding:12px}
  body.play-view .overlay h2{font-size:24px;margin:8px 0}
  body.play-view .overlay>p:not(.eyebrow){font-size:10px;line-height:1.5;margin:8px 0}
  body.play-view .overlay .eyebrow,body.play-view .overlay .hint{font-size:8px}
}