:root{
  color-scheme:dark;
  --bg:#05060d;--bg-2:#0b0d1c;
  --glass:rgba(22,24,48,.52);--glass-hi:rgba(34,36,68,.62);--glass-solid:rgba(14,15,32,.94);
  --line:rgba(170,180,255,.13);--line-2:rgba(185,195,255,.24);
  --text:#eceefe;--muted:#9097bd;--dim:#626890;
  --gold:#ffcf8a;--rose:#ff9fb4;--violet:#a99cff;--cyan:#8fe0ff;--danger:#ff5a6e;
  --accent:linear-gradient(100deg,#ffe0a8,#ff9fb4 55%,#a99cff);
  --sans:"Segoe UI Variable Display","Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --r:12px;--ease:cubic-bezier(.2,.8,.2,1);
}
*{box-sizing:border-box}
html,body{margin:0;min-height:100%;background:var(--bg)}
body{font:14px/1.5 var(--sans);color:var(--text);display:flex;align-items:center;justify-content:center;min-height:100dvh;padding:max(8px,env(safe-area-inset-top)) 12px max(10px,env(safe-area-inset-bottom));
  background:radial-gradient(120% 70% at 50% -10%,#1c1844 0%,rgba(28,24,68,0) 60%),radial-gradient(80% 60% at 0% 110%,rgba(20,70,90,.28),transparent 70%),radial-gradient(70% 50% at 100% 100%,rgba(90,30,70,.22),transparent 70%),var(--bg);
  -webkit-font-smoothing:antialiased;font-variant-numeric:tabular-nums}
button,input{-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit;background:transparent;border:0;cursor:pointer;touch-action:manipulation}
button:disabled{opacity:.38;cursor:default}
button:focus-visible,canvas:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
svg{display:block}
[hidden]{display:none!important}
.game{width:min(100%,620px,calc((100dvh - 214px)*.85366));min-width:300px;margin:auto}

/* top bar */
.topbar{display:flex;align-items:center;justify-content:space-between;height:52px}
.brand{display:flex;align-items:center;gap:11px}
.mark{width:32px;height:32px;color:var(--violet);filter:drop-shadow(0 0 10px rgba(255,190,140,.35))}
h1{font-size:18px;font-weight:650;letter-spacing:2px;margin:0;line-height:1.15}
.tagline{display:block;font-size:9.5px;letter-spacing:3.5px;color:var(--dim);font-weight:600}
.icon-button{min-width:44px;min-height:44px;display:inline-flex;justify-content:center;align-items:center;border-radius:12px;color:var(--muted);transition:background .2s,color .2s}
.icon-button svg{width:22px;height:22px}
.icon-button:hover:enabled{background:rgba(255,255,255,.06);color:var(--text)}

/* HUD */
.hud{display:grid;grid-template-columns:1.25fr 1fr auto;gap:8px;padding:6px 0 10px}
.stat{display:flex;flex-direction:column;justify-content:center;padding:8px 14px;min-height:62px;border:1px solid var(--line);border-radius:var(--r);background:linear-gradient(180deg,var(--glass-hi),var(--glass));backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.label{font-size:11px;color:var(--muted);letter-spacing:1px;line-height:1.4}
.score strong{font-size:27px;font-weight:700;line-height:1.15;letter-spacing:-.3px;background:var(--accent);-webkit-background-clip:text;background-clip:text;color:transparent}
.record b{font-weight:600;color:var(--text);margin-left:4px}
time{font-size:19px;font-weight:600;line-height:1.3;color:#d9dcf6;letter-spacing:.5px}
.next{min-width:118px}
.next-row{display:flex;align-items:center;gap:9px;margin-top:3px}
.type-chip{--c:#ff7a4c;position:relative;flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:13px;font-weight:750;color:rgba(20,16,40,.82);
  background:radial-gradient(circle at 35% 30%,#fff 0,color-mix(in srgb,var(--c) 70%,#fff) 22%,var(--c) 60%,color-mix(in srgb,var(--c) 60%,#000) 100%);
  box-shadow:0 0 14px color-mix(in srgb,var(--c) 70%,transparent),0 0 2px var(--c);transition:background .3s,box-shadow .3s}
#next-mass{font-size:12px;color:var(--muted);white-space:nowrap}

/* goal */
.goal{display:flex;align-items:center;gap:14px;padding:0 2px 10px;white-space:nowrap}
.goal-label{display:flex;align-items:center;gap:7px;font-size:12px;color:var(--muted)}
.goal b{font-weight:650;color:var(--gold)}
.goal .of{color:var(--dim)}
.bh-dot{width:12px;height:12px;border-radius:50%;background:#000;box-shadow:0 0 0 1.5px rgba(255,207,138,.85),0 0 10px rgba(255,180,110,.6)}
.track{position:relative;height:6px;flex:1;border-radius:6px;background:rgba(255,255,255,.06);box-shadow:inset 0 0 0 1px var(--line);overflow:hidden}
.track>div{height:100%;width:0;border-radius:6px;background:var(--accent);box-shadow:0 0 12px rgba(255,170,150,.6);transition:width .35s var(--ease)}

/* stage */
.stage{position:relative;width:100%;aspect-ratio:700/820;border-radius:16px;overflow:hidden;background:#05060d;border:1px solid var(--line-2);
  box-shadow:0 0 0 1px rgba(0,0,0,.6),0 30px 70px -24px rgba(0,0,0,.9),0 0 80px -20px rgba(130,110,255,.25)}
.stage::after{content:"";position:absolute;inset:0;border-radius:inherit;pointer-events:none;box-shadow:inset 0 1px 0 rgba(255,255,255,.06),inset 0 0 40px rgba(0,0,0,.35)}
canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}
.board-status{position:absolute;top:1.8%;left:4%;right:4%;display:flex;justify-content:space-between;pointer-events:none;color:rgba(200,210,255,.5);font-size:10.5px;letter-spacing:.5px}

/* overlays */
.overlay{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;z-index:4;
  background:radial-gradient(ellipse at 50% 45%,rgba(16,14,36,.72),rgba(5,6,13,.9));backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);animation:fade .45s var(--ease)}
.ready{background:linear-gradient(rgba(5,6,13,.78),rgba(5,6,13,.55) 58%,rgba(5,6,13,0) 80%);backdrop-filter:none;-webkit-backdrop-filter:none;justify-content:flex-start;padding-top:24%}
.hero-mark{width:64px;height:64px;color:var(--violet);filter:drop-shadow(0 0 24px rgba(255,190,140,.5));animation:float 5s ease-in-out infinite}
.overlay h2{font-weight:650;font-size:27px;letter-spacing:3px;margin:18px 0 8px;text-shadow:0 2px 24px rgba(0,0,0,.8)}
.overlay p{font-size:13px;color:#b9bedc;margin:0 0 26px;line-height:1.9;text-shadow:0 1px 10px rgba(0,0,0,.9)}
.primary{position:relative;padding:13px 34px;min-width:200px;min-height:50px;font-size:16px;font-weight:700;letter-spacing:3px;color:#1c1430;border-radius:999px;
  background:var(--accent);box-shadow:0 0 0 1px rgba(255,255,255,.35) inset,0 8px 30px -6px rgba(255,150,160,.55),0 0 50px -10px rgba(169,156,255,.6);transition:transform .2s var(--ease),box-shadow .2s,filter .2s}
.primary:hover:enabled{filter:brightness(1.07);transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.5) inset,0 12px 36px -6px rgba(255,150,160,.7),0 0 60px -6px rgba(169,156,255,.7)}
.primary:active{transform:translateY(1px) scale(.985)}
.hint{font-size:11px;color:var(--dim);margin-top:18px;letter-spacing:1px}
.end-stats{display:flex;justify-content:center;gap:10px;margin:0 0 26px}
.end-stats>div{display:flex;flex-direction:column;gap:4px;padding:10px 16px;min-width:92px;border:1px solid var(--line);border-radius:var(--r);background:var(--glass)}
.end-stats span{font-size:11px;color:var(--muted);letter-spacing:1px}
.end-stats strong{font-size:21px;font-weight:700;color:var(--gold)}

/* toolbar */
.toolbar{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;padding-top:10px}
.toolbar button{display:flex;gap:8px;align-items:center;justify-content:center;min-height:46px;font-size:13px;font-weight:600;letter-spacing:1px;color:#c9cdea;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(180deg,var(--glass-hi),var(--glass));transition:border-color .2s,background .2s,color .2s,transform .15s}
.toolbar button svg{width:18px;height:18px}
.toolbar button:hover:enabled{border-color:var(--line-2);color:var(--text);background:linear-gradient(180deg,rgba(46,48,86,.7),rgba(28,30,58,.6))}
.toolbar button:active:enabled{transform:scale(.98)}
.toolbar button[aria-pressed=true]{color:var(--gold);border-color:rgba(255,207,138,.45);background:linear-gradient(180deg,rgba(70,52,46,.65),rgba(42,32,40,.6));box-shadow:0 0 20px -6px rgba(255,190,120,.45)}

/* ladder */
.sequence{display:flex;align-items:center;justify-content:center;gap:7px;padding:12px 0 0;font-size:10px;font-weight:700}
.sequence span{width:20px;height:20px;border-radius:50%;display:grid;place-items:center;color:rgba(20,16,40,.8);
  background:radial-gradient(circle at 35% 30%,#fff 0,var(--c) 45%,color-mix(in srgb,var(--c) 55%,#000));box-shadow:0 0 10px color-mix(in srgb,var(--c) 55%,transparent)}
.sequence span.bh{width:auto;padding:0 7px;border-radius:999px;background:#000;color:var(--gold);box-shadow:0 0 0 1.2px rgba(255,207,138,.8),0 0 12px rgba(255,180,110,.45)}
.sequence span.o{width:auto;padding:0 5px;border-radius:999px;font-size:9px;letter-spacing:-.2px}
.sequence em{font-style:normal;font-weight:600;font-size:10px;color:var(--dim);letter-spacing:1px;padding:0 2px}
.sequence em::before{content:"→ "}.sequence em::after{content:" →"}

/* in-stage notices */
.danger{position:absolute;top:2%;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:8px;font-size:12px;font-weight:650;letter-spacing:1px;color:#ffd6dc;padding:7px 14px;border-radius:999px;
  background:rgba(120,20,40,.55);border:1px solid rgba(255,90,110,.55);box-shadow:0 0 24px rgba(255,60,90,.35);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);pointer-events:none;z-index:2;animation:pulse 1s ease-in-out infinite}
.danger i{width:7px;height:7px;border-radius:50%;background:var(--danger);box-shadow:0 0 8px var(--danger)}
.body-info{position:absolute;left:3%;right:3%;top:6%;padding:14px 48px 13px 16px;z-index:3;border-radius:14px;border:1px solid var(--line-2);background:rgba(14,15,32,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 14px 40px rgba(0,0,0,.6);animation:rise .3s var(--ease)}
.body-info>button{position:absolute;right:4px;top:4px}
.info-head{display:flex;align-items:center;gap:10px}
.swatch{--c:#fff;width:14px;height:14px;border-radius:50%;flex:none;background:radial-gradient(circle at 35% 30%,#fff,var(--c) 55%);box-shadow:0 0 10px var(--c)}
.body-info strong{font-size:15px;font-weight:650;letter-spacing:.5px}
#info-mass{font-size:13px;font-weight:600;color:var(--gold)}
#info-layers{display:flex;flex-wrap:wrap;gap:6px;margin:11px 0 8px}
#info-layers span{font-size:11px;padding:3px 9px 3px 7px;border-radius:999px;background:rgba(255,255,255,.05);border:1px solid var(--line);color:#cfd3ee;display:inline-flex;align-items:center;gap:6px}
#info-layers span::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--color);box-shadow:0 0 6px var(--color)}
.body-info p{font-size:11.5px;color:var(--muted);margin:0;line-height:1.8}
.cinema{position:absolute;top:13%;left:15px;right:15px;text-align:center;pointer-events:none;animation:fade 2.4s var(--ease)}
.cinema span{font-size:12px;letter-spacing:8px;color:var(--rose)}
.cinema h2{font-size:23px;font-weight:600;letter-spacing:3px;margin:10px 0;color:#f5ecff;text-shadow:0 2px 24px #000}

/* dialog */
dialog{background:var(--glass-solid);color:var(--text);padding:20px 22px 22px;border:1px solid var(--line-2);border-radius:18px;width:min(400px,calc(100% - 28px));max-height:90dvh;box-shadow:0 30px 100px rgba(0,0,0,.8),0 0 80px -30px rgba(169,156,255,.5)}
dialog[open]{animation:rise .3s var(--ease)}
dialog::backdrop{background:rgba(4,4,12,.72);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px)}
.dialog-title{display:flex;align-items:center;justify-content:space-between;margin-bottom:4px}
.dialog-title h2{font-size:18px;letter-spacing:2px;font-weight:650;margin:0}
dialog label{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:60px;border-bottom:1px solid var(--line);font-size:14px;cursor:pointer}
dialog label small{display:block;font-size:11px;color:var(--dim);margin-top:1px}
dialog input{appearance:none;-webkit-appearance:none;flex:none;position:relative;width:44px;height:26px;margin:0;border-radius:999px;background:rgba(255,255,255,.08);border:1px solid var(--line-2);cursor:pointer;transition:background .25s,border-color .25s}
dialog input::before{content:"";position:absolute;top:3px;left:3px;width:18px;height:18px;border-radius:50%;background:#c8cce6;box-shadow:0 2px 6px rgba(0,0,0,.5);transition:transform .25s var(--ease),background .25s}
dialog input:checked{background:linear-gradient(100deg,#ffcf8a,#ff9fb4);border-color:transparent}
dialog input:checked::before{transform:translateX(18px);background:#fff}
dialog select{flex:none;min-width:116px;height:34px;padding:0 30px 0 12px;font:inherit;font-size:13px;color:var(--text);background:rgba(255,255,255,.06) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%239097bd' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E") no-repeat right 11px center/11px 8px;border:1px solid var(--line-2);border-radius:999px;appearance:none;-webkit-appearance:none;cursor:pointer}
dialog select option{background:#14152c;color:var(--text)}
dialog p{font-size:11.5px;line-height:1.9;color:var(--muted);margin:16px 0 0}

.toast{position:fixed;top:max(18px,env(safe-area-inset-top));left:50%;transform:translateX(-50%);width:max-content;max-width:90vw;text-align:center;padding:10px 20px;font-size:13px;font-weight:600;letter-spacing:1px;color:#fff3f6;z-index:8;border-radius:999px;
  background:rgba(22,20,46,.82);border:1px solid var(--line-2);box-shadow:0 10px 40px rgba(0,0,0,.6),0 0 30px -8px rgba(255,159,180,.5);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);animation:drop .35s var(--ease)}

@keyframes fade{from{opacity:0}to{opacity:1}}
@keyframes rise{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
@keyframes drop{from{opacity:0;transform:translate(-50%,-10px)}to{opacity:1;transform:translate(-50%,0)}}
@keyframes float{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-6px) rotate(8deg)}}
@keyframes pulse{0%,100%{box-shadow:0 0 18px rgba(255,60,90,.25)}50%{box-shadow:0 0 30px rgba(255,60,90,.6)}}

@media(min-width:700px){.score strong{font-size:29px}}
@media(max-width:420px){body{padding-left:10px;padding-right:10px}.topbar{height:46px}h1{font-size:16px}.mark{width:28px;height:28px}.hud{gap:6px;padding-top:4px}.stat{padding:7px 10px;min-height:56px}.score strong{font-size:23px}time{font-size:16px}.next{min-width:100px}.goal{gap:10px}.goal-label{font-size:11px}.sequence{gap:5px}.sequence span{width:18px;height:18px}.overlay h2{font-size:22px}.overlay p{font-size:12px}.primary{font-size:15px;min-height:48px}.cinema h2{font-size:19px}.toolbar button{font-size:12px}}
@media(max-height:700px) and (min-width:650px){body{align-items:flex-start}.game{width:min(520px,calc((100dvh - 168px)*.85366))}.topbar{height:40px}.hud{padding:2px 0 6px}.stat{min-height:50px;padding:5px 12px}.score strong{font-size:21px}time{font-size:16px}.goal{padding-bottom:6px}.toolbar{padding-top:6px}.toolbar button{min-height:38px}.sequence{display:none}.ready{padding-top:16%}.overlay h2{font-size:21px}.overlay p{font-size:11px;margin-bottom:16px}.hero-mark{width:44px;height:44px}}
@media(orientation:landscape) and (max-height:600px){body{padding:10px;align-items:center}
  .game{display:grid;grid-template-columns:150px minmax(220px,calc((100dvh - 24px)*.85366)) 110px;grid-template-rows:44px 1fr 40px;gap:8px 14px;width:max-content;max-width:100%;min-width:0}
  .topbar{grid-column:1;grid-row:1;height:auto}.tagline{display:none}h1{font-size:14px;letter-spacing:1px}.mark{width:24px;height:24px}.topbar .icon-button{min-width:34px;min-height:34px}
  .hud{grid-column:1;grid-row:2;display:flex;flex-direction:column;justify-content:center;gap:8px;padding:0}.stat{min-height:0;padding:7px 10px}.score strong{font-size:22px}
  .goal{grid-column:1;grid-row:3;flex-direction:column;align-items:stretch;gap:6px;padding:0}.goal-label{font-size:10px}.track{flex:none}
  .stage{grid-column:2;grid-row:1/4;width:100%;height:calc(100dvh - 24px)}
  .toolbar{grid-column:3;grid-row:2;display:flex;flex-direction:column;justify-content:center;padding:0;gap:10px}.toolbar button{min-height:44px;font-size:12px}
  .sequence{grid-column:3;grid-row:3;flex-wrap:wrap;gap:4px;padding:0}.sequence em{display:none}.sequence span{width:16px;height:16px;font-size:8px}
  .ready{padding-top:20%}.hero-mark{width:40px;height:40px}.overlay h2{font-size:19px}.overlay p{font-size:11px;margin-bottom:16px}.primary{min-width:160px;min-height:44px;font-size:14px;padding:10px 20px}.hint{font-size:9px}
  .body-info{padding:11px 36px 10px 12px}.body-info strong{font-size:13px}.body-info p{font-size:10px}.body-info .icon-button{min-width:32px;min-height:32px}#info-layers span{font-size:9px}.cinema h2{font-size:16px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}