:root{
  --hue:200; --bg:#070814; --ink:#EEF1FF; --dim:#8E94B8; --line:rgba(255,255,255,.1);
  --sheet:rgba(13,15,34,.74); --card:rgba(255,255,255,.045); --cardh:rgba(255,255,255,.09);
  --acc:hsl(var(--hue) 95% 62%); --acc2:hsl(calc(var(--hue) + 70) 95% 64%);
  --mono:'JetBrains Mono',ui-monospace,monospace; --disp:'Unbounded',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0}
html,body{height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font:500 15px/1.45 var(--disp);letter-spacing:.005em}
body{touch-action:none;user-select:none;-webkit-user-select:none;-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.sprite{position:absolute;width:0;height:0}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
[hidden]{display:none!important}

/* background: slow aurora in the level colour */
.aurora{position:fixed;inset:0;overflow:hidden;z-index:0;transition:filter 1.2s}
.aurora i{position:absolute;width:70vmax;height:70vmax;border-radius:50%;filter:blur(90px);opacity:.34;mix-blend-mode:screen;transition:background 1.6s}
.aurora i:nth-child(1){left:-22vmax;top:-30vmax;background:hsl(var(--hue) 90% 50%);animation:drift1 26s ease-in-out infinite alternate}
.aurora i:nth-child(2){right:-28vmax;top:5vmax;background:hsl(calc(var(--hue) + 60) 90% 52%);animation:drift2 31s ease-in-out infinite alternate}
.aurora i:nth-child(3){left:10vmax;bottom:-45vmax;background:hsl(calc(var(--hue) - 50) 85% 45%);animation:drift1 37s ease-in-out infinite alternate-reverse}
@keyframes drift1{to{transform:translate(12vmax,8vmax) scale(1.15)}}
@keyframes drift2{to{transform:translate(-10vmax,12vmax) scale(.9)}}
body.danger .aurora{filter:hue-rotate(0) saturate(1.4)}
body.danger .aurora i:nth-child(2){background:hsl(355 90% 50%)}
#cv{position:fixed;inset:0;width:100%;height:100%;z-index:1;display:block}
.scan{position:fixed;inset:0;z-index:2;pointer-events:none;display:none}

/* header */
.top{position:fixed;left:0;right:0;top:0;z-index:5;display:flex;justify-content:space-between;align-items:center;padding:max(10px,env(safe-area-inset-top)) 14px 0}
.sign{color:var(--dim);text-decoration:none;font-size:12px;letter-spacing:.14em;text-transform:uppercase;padding:8px 4px}
.sign:hover{color:var(--ink)}
.tools{display:flex;gap:6px}
.ib{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:var(--card);border:1px solid var(--line);color:var(--ink);transition:background .15s,transform .1s}
.ib:hover{background:var(--cardh)} .ib:active{transform:scale(.94)}
.mute .offi{display:none} body.muted .mute .on{display:none} body.muted .mute .offi{display:block}
body[data-scene="menu"] #pauseBtn,body[data-scene="over"] #pauseBtn{visibility:hidden}

/* sheets */
.sheet{position:fixed;z-index:6;left:50%;top:50%;transform:translate(-50%,-50%);width:min(600px,calc(100vw - 24px));max-height:calc(100dvh - 90px);overflow:auto;
  background:var(--sheet);backdrop-filter:blur(22px) saturate(1.3);-webkit-backdrop-filter:blur(22px) saturate(1.3);
  border:1px solid var(--line);border-radius:24px;padding:26px;box-shadow:0 30px 80px rgba(0,0,0,.45);animation:rise .28s cubic-bezier(.2,.9,.3,1.2)}
@keyframes rise{from{opacity:0;transform:translate(-50%,-46%) scale(.97)}}
.sheet h2{font-size:24px;font-weight:800;letter-spacing:-.01em}
.small{width:min(340px,calc(100vw - 24px));display:grid;gap:10px;text-align:center}
.small h2{margin-bottom:6px}

.logo{display:flex;align-items:center;gap:14px}
.logo h1{font-size:clamp(34px,7vw,50px);font-weight:800;letter-spacing:-.035em;line-height:1;background:linear-gradient(100deg,#2FE0FF,#7C8CFF 35%,#C46BFF 60%,#FF6F91 85%);-webkit-background-clip:text;background-clip:text;color:transparent}
.mark{display:grid;grid-template-columns:repeat(3,14px);grid-template-rows:repeat(2,14px);gap:3px;animation:fall 2.8s cubic-bezier(.5,0,.5,1) infinite}
.mark i{border-radius:4px;background:linear-gradient(#D6A4FF,#9A48F0);box-shadow:0 0 14px rgba(180,92,255,.7),inset 0 1px 0 rgba(255,255,255,.6)}
.mark i:nth-child(1){grid-column:2;grid-row:1}
@keyframes fall{0%,15%{transform:translateY(-8px)}40%,100%{transform:translateY(0)}}
.tag{color:var(--dim);margin:12px 0 18px;font-size:14px;max-width:46ch}
.daily{width:100%;text-align:left;display:grid;grid-template-columns:1fr auto;align-items:center;gap:2px 14px;padding:16px 18px;border-radius:16px;
  background:linear-gradient(120deg,hsl(var(--hue) 90% 55% / .28),hsl(calc(var(--hue) + 70) 90% 55% / .2));border:1px solid hsl(var(--hue) 90% 70% / .35);transition:transform .12s,filter .15s}
.daily .k{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--acc);grid-column:1}
.daily b{font-weight:700;font-size:16px;grid-column:1}
.daily em{grid-column:2;grid-row:1/3;font:700 15px var(--mono);font-style:normal;color:var(--ink)}
.daily:hover{filter:brightness(1.15)} .daily:active{transform:scale(.99)}
.modes{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:10px}
.modes button{text-align:left;padding:14px;border-radius:16px;background:var(--card);border:1px solid var(--line);display:flex;flex-direction:column;gap:3px;min-height:112px;transition:background .15s,transform .12s,border-color .15s}
.modes button:hover{background:var(--cardh);border-color:hsl(var(--hue) 90% 70% / .45)} .modes button:active{transform:scale(.98)}
.modes b{font-size:15px;font-weight:700}
.modes span{color:var(--dim);font-size:12px;line-height:1.35}
.modes em{margin-top:auto;font:700 13px var(--mono);font-style:normal;color:var(--acc)}
.hint{color:var(--dim);font-size:12px;margin-top:16px;text-align:center}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 20px;border-radius:14px;font-weight:700;font-size:15px;
  background:linear-gradient(120deg,var(--acc),var(--acc2));color:#08091A;box-shadow:0 8px 24px hsl(var(--hue) 90% 50% / .35);transition:transform .1s,filter .15s}
.btn:hover{filter:brightness(1.1)} .btn:active{transform:scale(.97)}
.btn.ghost{background:var(--card);color:var(--ink);border:1px solid var(--line);box-shadow:none}

/* results */
.res{width:min(520px,calc(100vw - 24px));text-align:center}
.kicker{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--acc)}
.res h2{margin:4px 0 12px}
.big b{display:block;font:700 clamp(40px,10vw,60px)/1 var(--mono);letter-spacing:-.03em}
.big span{display:inline-block;margin-top:8px;color:var(--dim);font-size:13px}
.big span.new{color:#08091A;background:linear-gradient(120deg,#FFD83D,#FF9A2E);padding:3px 10px;border-radius:99px;font-weight:700}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:20px 0}
.grid div{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:10px 8px}
.grid dt{color:var(--dim);font-size:10px;letter-spacing:.12em;text-transform:uppercase}
.grid dd{font:700 17px var(--mono);margin:2px 0 0}
.row{display:flex;gap:10px;justify-content:center}
.row .btn{flex:1;max-width:200px}

/* options */
.opts{width:min(640px,calc(100vw - 24px))}
.opts .head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.tabs{display:flex;gap:6px;border-bottom:1px solid var(--line);margin-bottom:18px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tabs button{padding:10px 14px;font-size:13px;font-weight:700;color:var(--dim);border-bottom:2px solid transparent;margin-bottom:-1px;white-space:nowrap}
.tabs button[aria-selected="true"]{color:var(--ink);border-color:var(--acc)}
.pane{display:grid;gap:16px}
.set{display:grid;grid-template-columns:1fr auto;gap:4px 16px;align-items:center}
.set label,.set .lab{font-weight:700;font-size:14px}
.set small{grid-column:1/-1;color:var(--dim);font-size:12px;line-height:1.4}
.set output{font:700 13px var(--mono);color:var(--acc);min-width:64px;text-align:right}
.set input[type=range]{grid-column:1/-1;width:100%;accent-color:var(--acc);height:26px}
.seg{display:flex;gap:4px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:3px;flex-wrap:wrap}
.seg button{padding:7px 11px;border-radius:9px;font-size:12px;font-weight:700;color:var(--dim)}
.seg button[aria-pressed="true"]{background:var(--acc);color:#08091A}
.tog{width:48px;height:28px;border-radius:99px;background:var(--cardh);border:1px solid var(--line);position:relative;transition:background .2s}
.tog::after{content:"";position:absolute;left:3px;top:3px;width:20px;height:20px;border-radius:50%;background:var(--dim);transition:transform .2s,background .2s}
.tog[aria-pressed="true"]{background:hsl(var(--hue) 90% 55% / .5)}
.tog[aria-pressed="true"]::after{transform:translateX(20px);background:#fff}
.skins{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.skins button{border-radius:14px;border:1px solid var(--line);padding:10px 8px 8px;background:var(--card);display:grid;gap:8px;justify-items:center;font-size:12px;font-weight:700}
.skins button[aria-pressed="true"]{border-color:var(--acc);box-shadow:0 0 0 2px hsl(var(--hue) 90% 60% / .35)}
.skins canvas{width:72px;height:48px}
.keys{display:grid;gap:6px}
.keys .k{display:grid;grid-template-columns:1fr 104px 104px;gap:6px;align-items:center;font-size:13px;font-weight:700}
.keys .k button{padding:8px 6px;border-radius:10px;background:var(--card);border:1px solid var(--line);font:700 12px var(--mono);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.keys .k button.wait{border-color:var(--acc);color:var(--acc);animation:blink .8s infinite}
@keyframes blink{50%{opacity:.4}}
.linkbtn{justify-self:start;color:var(--acc);font-size:13px;font-weight:700;padding:4px 0}

/* touch buttons */
.pad{position:fixed;left:0;right:0;bottom:0;z-index:4;display:flex;justify-content:space-between;align-items:flex-end;padding:0 12px max(12px,env(safe-area-inset-bottom));pointer-events:none}
.pad>div{display:grid;gap:8px;pointer-events:auto}
.pad .cl{grid-template-columns:repeat(3,58px)}
.pad .cr{grid-template-columns:repeat(3,58px)}
.pad .wide{grid-column:1/-1}
.pad button{height:58px;border-radius:16px;background:rgba(255,255,255,.08);border:1px solid var(--line);display:grid;place-items:center;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}
.pad button.on{background:hsl(var(--hue) 90% 60% / .45)}
.pad svg{width:24px;height:24px}

.ogmark{display:none}

/* ------------- skins ------------- */
body[data-skin="neon"]{--bg:#03030A}
body[data-skin="neon"] .aurora i{opacity:.2}
body[data-skin="retro"]{--bg:#0B0C10;--sheet:rgba(14,15,20,.92)}
body[data-skin="retro"] .aurora{display:none}
body[data-skin="retro"] .scan{display:block;background:repeating-linear-gradient(0deg,rgba(0,0,0,.22) 0 1px,transparent 1px 3px)}
body[data-skin="paper"]{--bg:#EEE8DC;--ink:#1D1B2A;--dim:#6E6A7C;--line:rgba(29,27,42,.12);--sheet:rgba(255,252,246,.86);--card:rgba(29,27,42,.04);--cardh:rgba(29,27,42,.08);--acc:hsl(var(--hue) 70% 42%);--acc2:hsl(calc(var(--hue) + 70) 70% 46%)}
body[data-skin="paper"] .aurora i{mix-blend-mode:multiply;opacity:.16}
body[data-skin="paper"] .btn{color:#fff}
body[data-skin="paper"] .seg button[aria-pressed="true"]{color:#fff}
body[data-skin="paper"] .big span.new{color:#1D1B2A}
body[data-skin="paper"] .pad button{background:rgba(255,255,255,.6)}

/* hub and share renders */
body.demo .top,body.demo .sheet,body.demo .pad{display:none!important}
body.og .ogmark{display:block;position:fixed;z-index:3;left:6%;top:50%;transform:translateY(-54%)}
.ogmark h1{font:800 120px/.92 var(--disp);letter-spacing:-.05em;background:linear-gradient(100deg,#2FE0FF,#7C8CFF 40%,#C46BFF 70%,#FF6F91);-webkit-background-clip:text;background-clip:text;color:transparent}
.ogmark p{font-size:26px;color:var(--dim);margin-top:18px}

@media (max-width:640px){
  .sheet{padding:20px;border-radius:20px}
  .modes{grid-template-columns:repeat(2,1fr)}
  .modes button{min-height:96px}
  .skins{grid-template-columns:repeat(2,1fr)}
  .keys .k{grid-template-columns:1fr 84px 84px}
  .grid{grid-template-columns:repeat(2,1fr)}
}
@media (prefers-reduced-motion:reduce){.aurora i,.mark{animation:none}}
@media (max-width:640px){
  .sheet{top:calc(50% + 26px);max-height:calc(100dvh - 76px)}
  .daily{grid-template-columns:1fr}
  .daily em{grid-column:1;grid-row:auto;font-size:13px;color:var(--acc);margin-top:4px}
  .tag{font-size:13px;margin:10px 0 14px}
}