:root{color-scheme:dark;--bg:#11151c;--panel:#1a222d;--text:#eef7fa;--muted:#a9bacb;--cyan:#65d9ea;--mint:#76f2c0;--violet:#ab8cff;--line:#354657;--space:24px}*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font:16px/1.5 system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;color:var(--text);background:var(--bg);isolation:isolate}body:before{content:'';position:fixed;inset:0;z-index:-1;background:radial-gradient(ellipse at 0 30%,#163e494f,transparent 50%),radial-gradient(ellipse at 100% 60%,#593d7344,transparent 50%);pointer-events:none}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,input,select{min-height:48px;border:1px solid var(--line);border-radius:10px;padding:10px 14px;color:var(--text);background:#202b39}button{cursor:pointer;font-weight:650;touch-action:manipulation;transition:background .15s,box-shadow .15s}button:hover{border-color:var(--cyan);box-shadow:0 0 20px #65d9ea25}button:disabled{opacity:.4;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--mint);outline-offset:3px}button:active{background:#354b60}input,select{width:100%;min-width:0}input::placeholder{color:#a9bacb}[hidden]{display:none!important}header,main,footer{width:min(1220px,calc(100% - 48px));margin:auto}header{display:flex;justify-content:space-between;align-items:center;min-height:64px;border-bottom:1px solid var(--line);font-size:11px;letter-spacing:2px}header a{font-size:14px}header i{color:var(--mint);font-style:normal}main{padding:24px 0}.topbar{display:flex;align-items:center;justify-content:space-between;gap:24px;margin-bottom:24px}.eyebrow{font-size:11px;letter-spacing:2px;color:var(--cyan)}h1{font-size:clamp(30px,4vw,48px);line-height:1.1;letter-spacing:-2px;margin:8px 0}h1 span{color:var(--cyan);text-shadow:0 0 28px #65d9ea44}h2{font-size:20px;margin:0 0 16px}label{display:block;font-size:11px;letter-spacing:1px;color:var(--muted)}.profile{width:440px;display:grid;grid-template-columns:120px 1fr;gap:6px 12px}.profile>label{grid-column:1}.profile>select{grid-column:1}.profile form{display:flex;gap:8px;grid-row:1/3;grid-column:2;align-items:center}.profile button{white-space:nowrap}.profile small{grid-column:1/-1;color:var(--muted);font-size:11px}.leftpanel{border:1px solid var(--line);border-radius:16px;background:#1a222dd9;padding:20px;margin-bottom:24px}.mode-list{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:8px}.mode{min-height:52px;text-align:left;font-size:13px;padding:10px 12px;box-shadow:none}.mode b{font-weight:650}.mode span{display:none}.mode.selected{background:linear-gradient(120deg,#164351,#33344e);border-color:var(--cyan);box-shadow:inset 0 0 18px #65d9ea15}.mode.selected b{color:var(--cyan)}.mode-rules{color:var(--muted);font-size:14px;line-height:1.6;border-left:2px solid var(--cyan);padding-left:12px;margin:16px 0 0;min-height:44px}#stage-control{display:flex;gap:16px;align-items:center;margin-top:16px}#stage{width:160px}.instructions{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:16px;padding-top:12px;border-top:1px solid var(--line)}.instructions h3{font-size:11px;margin:0;color:var(--muted)}.instructions p{margin:0;font-size:12px;color:var(--muted)}kbd{display:inline-flex;align-items:center;justify-content:center;min-width:26px;padding:2px 5px;margin-right:3px;border:1px solid #536176;border-radius:4px;color:var(--text);font:11px system-ui}.arena{display:grid;grid-template-columns:minmax(0,420px) 260px;gap:20px 24px;justify-content:center;align-items:start;background:linear-gradient(135deg,#1b2430e8,#171c29ee);border:1px solid #43556d;border-radius:20px;padding:24px;scroll-margin-top:12px}.arena-toolbar{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:12px;border-bottom:1px solid var(--line);padding-bottom:16px}.arena-toolbar>div{display:flex;gap:8px}.arena-toolbar button{min-height:44px;padding:8px 14px;font-size:12px;margin:0}.game{min-width:0;width:100%}.board-caption{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:32px;margin-bottom:12px;font-size:14px}.board-caption span{font-size:12px;color:var(--muted);text-align:right}.board-wrap{width:100%;position:relative;border:1px solid #65d9ea99;border-radius:8px;overflow:hidden;background:#171d26;box-shadow:0 0 32px #65d9ea14}#board{width:100%;height:auto;display:block;aspect-ratio:1/2}#overlay{position:absolute;inset:0;background:linear-gradient(150deg,#131e2af0,#29213bf2);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:16px;gap:16px}#overlay .mark{font-size:48px;color:var(--cyan)}#overlay h2{font-size:clamp(20px,3vw,30px);line-height:1.15;margin:0}#overlay p{font-size:14px;color:var(--muted);margin:0}#start{background:linear-gradient(110deg,#75eadb,#ab8cff);color:#111b25;border-color:#85cfd6;box-shadow:0 0 24px #65d9ea35;font-size:14px;margin-top:8px}.touch{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;margin-top:12px;user-select:none;-webkit-user-select:none}.touch button{min-width:0;min-height:52px;padding:4px;font-size:18px;touch-action:none}.touch [data-action=hold],.touch [data-action=drop]{font-size:11px;letter-spacing:.5px}.touch [data-action=drop]{background:#295351;color:#9affdf}.touch [data-action=power]{grid-column:1/-1;background:#473653;color:#f2b3ff}.touch [data-action=rotate]{color:var(--cyan)}aside{min-width:0;margin-top:44px;padding:20px;border:1px solid var(--line);border-radius:12px;background:#111923aa;display:grid;grid-template-columns:1fr 1fr;gap:16px}strong{display:block;font-size:28px;line-height:1.2;font-weight:650;font-variant-numeric:tabular-nums;letter-spacing:-1px;margin-top:6px}.stat,.two,.clock,.record,aside>.secondary,.note{grid-column:1/-1}.stat strong{font-size:40px;color:var(--cyan)}.stat{padding-bottom:16px;border-bottom:1px solid var(--line)}.two{display:flex;justify-content:space-between}.clock{border-bottom:1px solid var(--line);padding-bottom:16px}.clock strong{font-size:26px}.next{min-width:0;border:1px solid var(--line);padding:10px 6px;background:#1c2835;border-radius:8px}.next label{text-align:center;font-size:9px;letter-spacing:.5px}.next canvas{width:84px;max-width:100%;height:70px;display:block;margin:6px auto 0}.record strong{font-size:20px;color:var(--mint)}.record small{color:var(--muted);font-size:12px}.secondary{background:#243042;color:#d6e7f5}.note{font-size:12px;color:var(--muted);margin:0}#exit-focus{display:none}footer{display:flex;justify-content:space-between;gap:16px;padding:16px 0 24px;border-top:1px solid var(--line);font-size:10px;letter-spacing:1px;color:var(--muted)}.side-ornaments{position:fixed;inset:0;overflow:hidden;pointer-events:none;z-index:-1}.side-ornaments i{position:absolute;display:block}.orbit{width:380px;height:380px;border:1px solid #65d9ea88;border-radius:50%;box-shadow:0 0 40px #65d9ea30,inset 0 0 25px #65d9ea20;animation:float 12s ease-in-out infinite alternate}.orbit:after{content:'';position:absolute;inset:30px;border:1px dashed #ab8cff88;border-radius:50%}.orbit-left{left:-270px;top:25%}.orbit-right{right:-280px;bottom:10%;border-color:var(--violet);animation-delay:-6s}.neon-diamond{width:70px;height:70px;rotate:45deg;border:1px solid var(--violet);box-shadow:0 0 30px #ab8cff40}.diamond-left{left:-35px;bottom:15%}.diamond-right{right:-35px;top:15%}.edge-beam{width:2px;height:30vh;background:linear-gradient(transparent,var(--cyan),transparent);box-shadow:0 0 18px var(--cyan)}.beam-left{left:4px;top:35%}.beam-right{right:4px;bottom:15%}@keyframes float{to{transform:translateY(30px) rotate(12deg)}}.effects-off .side-ornaments{display:none}.effects-off:before{background:none}
/* Playing screen: the viewport determines board size, never the device model. */
.focus-game{overflow:hidden}.focus-game header,.focus-game .topbar,.focus-game .leftpanel,.focus-game footer{display:none}.focus-game main{width:100%;padding:0;margin:0}.focus-game .arena{position:fixed;inset:0;overflow:auto;border:0;border-radius:0;padding:12px max(12px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(12px,env(safe-area-inset-left));grid-template-columns:minmax(160px,calc((100dvh - 180px)/2)) 230px;gap:8px 20px;align-content:center}.focus-game .arena-toolbar{padding:0;border:0;min-height:44px}.focus-game .board-caption{margin-bottom:8px}.focus-game aside{margin-top:40px}.focus-game #exit-focus{display:block}.focus-game #focus{display:none}
@media(max-width:1000px){.mode-list{grid-template-columns:repeat(5,minmax(0,1fr))}.topbar{flex-wrap:wrap}.profile{width:min(100%,500px)}.arena{grid-template-columns:minmax(0,380px) 220px}.arena aside{padding:16px;gap:12px}.instructions{display:none}}
@media(max-width:600px){header,main,footer{width:calc(100% - 24px)}header{min-height:48px;font-size:8px;letter-spacing:1px}header a{font-size:11px}main{padding:16px 0}.topbar{gap:16px;margin-bottom:16px}.profile{grid-template-columns:100px minmax(0,1fr)}.profile form{gap:6px}.profile button{padding:10px;font-size:12px}.profile input{font-size:13px;padding:10px;min-width:60px}.leftpanel{padding:14px;margin-bottom:16px}.mode-list{grid-template-columns:repeat(3,minmax(0,1fr));gap:6px}.mode{font-size:12px;padding:10px;min-height:48px}.mode-rules{font-size:13px}.arena{grid-template-columns:minmax(0,1fr);padding:12px;gap:12px}.arena-toolbar{gap:8px}.arena-toolbar .eyebrow{font-size:9px}.arena-toolbar button{font-size:11px;padding:8px}.game{width:min(100%,380px);justify-self:center}.arena aside{margin:0;grid-template-columns:repeat(2,minmax(0,1fr));width:100%;padding:14px}.stat,.two,.clock,.record{grid-column:auto}.next{display:none}.stat{border:0;padding:0}.stat strong{font-size:28px}.clock{border:0;padding:0}.record strong{font-size:17px}.arena aside>.secondary{grid-column:auto}.note{grid-column:1/-1}.board-caption{font-size:13px}.board-caption span{font-size:11px}footer{font-size:9px;flex-wrap:wrap}.focus-game .arena{display:grid;grid-template-columns:1fr;padding-top:max(8px,env(safe-area-inset-top));align-content:start;gap:4px;overflow:auto}.focus-game .arena-toolbar{min-height:40px;max-width:480px;width:100%;justify-self:center}.focus-game .game{width:min(100%,calc((100dvh - 215px - env(safe-area-inset-top) - env(safe-area-inset-bottom))/2));min-width:140px}.focus-game .board-caption{min-height:26px;margin-bottom:4px}.focus-game .touch{grid-template-columns:repeat(6,minmax(0,1fr));width:min(calc(100vw - 24px),480px);position:relative;left:50%;transform:translateX(-50%);gap:6px;margin-top:8px}.focus-game .touch button{min-height:48px}.focus-game .touch [data-action=power]{min-height:44px}.focus-game aside{margin:4px 0 0;padding:6px 8px;display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:6px 12px;border:0;background:none;max-width:480px;width:100%;justify-self:center}.focus-game aside label{font-size:8px}.focus-game aside strong{font-size:17px;margin:0}.focus-game aside .two{gap:12px}.focus-game aside .record,.focus-game aside .next,.focus-game aside .note,.focus-game #restart{display:none}.focus-game aside>.secondary{width:auto;min-height:44px;padding:6px 12px;font-size:11px}.focus-game .clock,.focus-game .stat{padding:0;border:0}}
@media(orientation:landscape) and (max-height:600px){.focus-game .arena{display:grid;grid-template-columns:minmax(200px,1fr) 170px;justify-content:center;align-content:center;max-width:900px;margin:auto;gap:4px 12px}.focus-game .arena-toolbar{grid-column:1/-1;min-height:38px}.focus-game .game{position:relative;display:grid;grid-template-columns:1fr minmax(100px,calc((100dvh - 96px)/2)) 1fr;grid-template-rows:24px auto;gap:0 8px;width:100%;max-width:none}.focus-game .board-caption{grid-column:2;grid-row:1;font-size:10px;margin:0}.focus-game .board-caption span{display:none}.focus-game .board-wrap{grid-column:2;grid-row:2}.focus-game .touch{display:contents;position:static;transform:none}.focus-game .touch button{width:100%;min-width:44px;max-width:72px;min-height:48px;align-self:center;justify-self:center;grid-row:2;z-index:1}.focus-game [data-action=left]{grid-column:1;transform:translateY(-58px)}.focus-game [data-action=down]{grid-column:1}.focus-game [data-action=right]{grid-column:1;transform:translateY(58px)}.focus-game [data-action=rotate]{grid-column:3;transform:translateY(-58px)}.focus-game [data-action=hold]{grid-column:3}.focus-game [data-action=drop]{grid-column:3;transform:translateY(58px)}.focus-game .touch [data-action=power]{grid-column:3;transform:translateY(112px);min-height:44px}.focus-game aside{display:flex;flex-direction:column;align-items:stretch;justify-content:center;margin:24px 0 0;padding:8px;gap:8px}.focus-game .stat{padding:0;border:0}.focus-game aside .stat strong{font-size:26px}.focus-game aside strong{font-size:18px}.focus-game aside .two{display:flex;gap:12px}.focus-game aside .next,.focus-game aside .record,.focus-game aside .note,.focus-game #restart{display:none}.focus-game #exit-focus{display:block}.focus-game aside>.secondary{font-size:11px;padding:8px;min-height:44px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
@media(max-width:600px) and (orientation:portrait){.focus-game .game{width:min(100%,calc((100dvh - 310px - env(safe-area-inset-top) - env(safe-area-inset-bottom))/2))}}
@media(min-width:601px) and (min-height:601px){.focus-game .arena{grid-template-columns:minmax(200px,calc((100dvh - 300px)/2)) 230px}.focus-game .touch{grid-template-columns:repeat(3,minmax(0,1fr))}.focus-game .touch [data-action=power]{grid-column:1/-1}}
#mini{display:none}.focus-game #mini{display:block;width:140px;height:46px}.focus-game .arena-toolbar>.eyebrow{display:none}