:root{--teal:#2ee6c8;--teal-d:#0b7566;--vio:#8e2aad;--vio-l:#b87cff;--ink:#eaf3ff;--glass:rgba(14,10,46,.78)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;overflow:hidden;background:#0b0a2e;color:var(--ink);font:16px/1.4 ui-rounded,"Nunito","Quicksand",system-ui,"Segoe UI",Arial,sans-serif;overscroll-behavior:none;-webkit-user-select:none;user-select:none}
#game{position:fixed;inset:0;width:100%;height:100%;display:block;touch-action:none;background:#0b0a2e}
[hidden]{display:none!important}
button{font:inherit;color:inherit}
/* screens */
.screen{position:fixed;inset:0;z-index:20;padding:max(14px,env(safe-area-inset-top)) 64px max(14px,env(safe-area-inset-bottom)) 14px;overflow-y:auto;-webkit-overflow-scrolling:touch}
.screen.center{display:flex}
.screen.center[hidden]{display:none}
#menuScreen{background:linear-gradient(180deg,rgba(8,6,32,.55) 0%,rgba(8,6,32,.15) 48%,rgba(8,6,32,.55) 100%)}
.menuBox{text-align:center;width:100%;max-width:340px;margin:auto}
.logo{margin:0;font-size:clamp(44px,13vw,76px);font-weight:800;letter-spacing:.02em;line-height:1;background:linear-gradient(95deg,#b8f7ea 0%,#7fe9d6 30%,#c9a4ff 70%,#e9b8ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 14px rgba(120,235,215,.55)) drop-shadow(0 0 30px rgba(160,110,255,.45))}
.tag{margin:10px 0 22px;color:#d6dcff;font-size:17px;letter-spacing:.03em;text-shadow:0 2px 10px #0a0630}
.fine{margin:18px 0 0;font-size:12.5px;color:#aeb6e8;text-shadow:0 1px 6px #0a0630}
.btns{display:flex;flex-direction:column;gap:10px;align-items:stretch}
.btn{min-height:48px;padding:10px 18px;border-radius:26px;border:1.5px solid rgba(120,240,222,.55);background:rgba(18,16,60,.62);color:#e9fffb;font-weight:700;font-size:16px;cursor:pointer;text-align:center;text-decoration:none;display:flex;align-items:center;justify-content:center;transition:transform .12s,box-shadow .2s,background .2s;box-shadow:0 0 0 rgba(46,230,200,0)}
.btn:hover,.btn:focus-visible{background:rgba(30,40,90,.8);box-shadow:0 0 18px rgba(46,230,200,.4);outline:none}
.btn:focus-visible{outline:3px solid #ffd84a;outline-offset:2px}
.btn:active{transform:scale(.97)}
.btn.primary{background:linear-gradient(100deg,#0d8f7c,#6f3bc4);border-color:#b9f8ec;font-size:19px;min-height:54px;box-shadow:0 0 22px rgba(120,90,255,.45)}
.btn.primary:hover{background:linear-gradient(100deg,#12b09a,#8a52e6)}
.btn.ghost{background:transparent;border-color:rgba(190,170,255,.4);color:#cdbfff;font-weight:600;font-size:15px}
.btn.small{min-height:44px;padding:8px 14px;font-size:15px}
.card{width:100%;max-width:380px;margin:auto;padding:20px 18px 18px;border-radius:22px;background:var(--glass);border:1.5px solid rgba(120,240,222,.4);box-shadow:0 10px 44px rgba(5,0,40,.7),0 0 36px rgba(110,80,230,.25) inset;text-align:center}
.card h2,.head h2{margin:0 0 6px;font-size:26px;font-weight:800;letter-spacing:.02em;background:linear-gradient(95deg,#b8f7ea,#c9a4ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.tip{margin:6px 0 14px;color:#bfc8f5;font-size:14.5px}
.how ol{text-align:left;margin:10px 0 6px;padding-left:22px;font-size:15px;line-height:1.45;color:#e2e8ff}
.how li{margin:0 0 9px}.how b{color:#8ff5e2}
/* stage select */
#stageScreen{background:linear-gradient(180deg,rgba(8,6,32,.82),rgba(8,6,32,.7))}
.head{display:flex;align-items:center;gap:12px;margin:2px 0 8px;max-width:560px;margin-inline:auto}
.head h2{margin:0}
#stageList{max-width:560px;margin:0 auto;padding-bottom:30px}
.chap{margin:14px 0 8px}
.chap h3{margin:0;font-size:18px;color:#c9b6ff;letter-spacing:.03em;display:flex;justify-content:space-between;align-items:baseline;position:sticky;top:-14px;padding:10px 4px 4px;background:linear-gradient(180deg,rgba(10,8,40,.95) 75%,rgba(10,8,40,0));z-index:2}
.chap h3 .zs{font-size:13px;color:#ffd86a;letter-spacing:.06em}
.sum{margin:0 0 4px;font-size:14px;color:#ffd86a;letter-spacing:.06em}
.chap p{margin:0 0 8px;font-size:13.5px;color:#9fb0e8}
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.st{display:flex;align-items:center;gap:10px;min-height:56px;padding:6px 10px;border-radius:16px;border:1.5px solid rgba(120,240,222,.4);background:rgba(20,18,66,.7);text-align:left;cursor:pointer;transition:box-shadow .2s,transform .12s}
.st:hover,.st:focus-visible{box-shadow:0 0 18px rgba(46,230,200,.4);outline:none}
.st:focus-visible{outline:3px solid #ffd84a;outline-offset:2px}
.st:active{transform:scale(.97)}
.st .n{flex:0 0 34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;color:#10133a;background:radial-gradient(circle at 40% 35%,#fff7c8,#ffd36a 55%,#e0a63a);box-shadow:0 0 12px rgba(255,210,100,.7)}
.st .t{display:flex;flex-direction:column;min-width:0}
.st .nm{font-size:13px;font-weight:700;line-height:1.15;color:#eef3ff}
.st .s{font-size:12px;letter-spacing:2px;color:rgba(255,255,255,.22)}
.st .s i{font-style:normal}.st .s i.on{color:#ffd86a;text-shadow:0 0 8px rgba(255,210,100,.9)}
.st.locked{opacity:.45;cursor:default;border-color:rgba(160,160,220,.25)}
.st.locked .n{background:#2a2c66;color:#9aa0d8;box-shadow:none;font-size:14px}
.st.next{border-color:#ffd86a;box-shadow:0 0 16px rgba(255,216,106,.35)}
/* hud */
#hud{position:fixed;left:calc(8px + env(safe-area-inset-left));top:calc(8px + env(safe-area-inset-top));z-index:10;display:flex;align-items:center;gap:10px;pointer-events:none;max-width:calc(100% - 70px)}
#pauseBtn{pointer-events:auto;width:44px;height:44px;border-radius:50%;border:2px solid rgba(180,250,238,.8);background:rgba(18,16,60,.72);display:flex;gap:5px;align-items:center;justify-content:center;padding:0;cursor:pointer;box-shadow:0 0 14px rgba(46,230,200,.35)}
#pauseBtn span{width:4px;height:16px;border-radius:2px;background:#d9fff8}
#pauseBtn:focus-visible{outline:3px solid #ffd84a;outline-offset:2px}
#hudName{font-weight:800;font-size:14px;letter-spacing:.03em;color:#e8f0ff;text-shadow:0 1px 8px #08052e,0 0 10px #08052e;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
#hudPips{display:flex;gap:6px;margin-top:4px;flex-wrap:wrap}
#hudPips i{width:11px;height:11px;border-radius:50%;background:rgba(150,160,220,.3);border:1px solid rgba(190,200,255,.5)}
#hudPips i.on{background:radial-gradient(circle,#fff8d0,#ffcf5a);border-color:#fff1b0;box-shadow:0 0 10px rgba(255,210,100,.9)}
#hudPips i.moon{border-radius:50%;background:transparent;border:1px dashed rgba(255,240,190,.5)}
#hudPips i.moon.on{background:radial-gradient(circle,#fff,#ffe9a0);border:1px solid #fff}
#stageTitle{position:fixed;left:0;right:0;top:19%;z-index:9;text-align:center;pointer-events:none;opacity:0;transition:opacity 1.2s;padding:0 64px 0 14px}
#stageTitle.show{opacity:1}
#stageTitle small{display:block;font-size:13px;letter-spacing:.3em;text-transform:uppercase;color:#a9f2e4}
#stageTitle b{display:block;font-size:30px;font-weight:800;color:#f2f6ff;text-shadow:0 0 18px rgba(150,120,255,.9),0 2px 8px #08052e}
#hintCard{position:fixed;left:50%;bottom:calc(76px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(8px);width:min(320px,calc(100% - 30px));padding:10px 14px;border-radius:16px;background:rgba(14,10,46,.78);border:1px solid rgba(120,240,222,.4);color:#e6edff;font-size:14.5px;text-align:center;z-index:9;pointer-events:none;opacity:0;transition:opacity 1s,transform 1s}
#hintCard.show{opacity:1;transform:translateX(-50%)}
/* done */
.stars{font-size:38px;letter-spacing:8px;margin:2px 0 8px;color:rgba(255,255,255,.18)}
.stars i{font-style:normal;transition:color .6s,text-shadow .6s}
.stars i.on{color:#ffd86a;text-shadow:0 0 18px rgba(255,210,100,.95)}
.goals{list-style:none;padding:0;margin:0 0 8px;text-align:left;font-size:15px;color:#9aa4d8}
.goals li{padding:6px 4px 6px 30px;position:relative}
.goals li:before{content:"○";position:absolute;left:6px;color:#6c76b8}
.goals li.on{color:#eaf6ff}.goals li.on:before{content:"●";color:#ffd86a;text-shadow:0 0 8px rgba(255,210,100,.9)}
@media (max-width:380px){.logo{font-size:46px}.card{padding:16px 14px}.btn{font-size:15px}.grid{gap:8px}.st{padding:5px 8px;gap:8px}}
@media (min-width:700px){.screen{padding-right:80px}.menuBox{max-width:380px}.grid{grid-template-columns:repeat(4,1fr)}#stageList,.head{max-width:760px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important}}

/* optional fullscreen */
#fsHud{pointer-events:auto;flex:none;width:44px;height:44px;border-radius:50%;border:2px solid rgba(200,170,255,.8);background:rgba(18,16,60,.72);display:flex;align-items:center;justify-content:center;padding:0;cursor:pointer;box-shadow:0 0 14px rgba(150,100,255,.35)}
#fsHud:focus-visible{outline:3px solid #ffd84a;outline-offset:2px}
#fsHud[hidden]{display:none!important}
#a2hs{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(14px + env(safe-area-inset-bottom));z-index:60;width:min(340px,calc(100% - 28px));padding:12px 14px;border-radius:18px;border:1.5px solid rgba(190,170,255,.55);background:rgba(14,10,46,.92);box-shadow:0 0 22px rgba(120,90,255,.4);text-align:center;font-size:14px;line-height:1.4;color:#e8f0ff}
#a2hs p{margin:0 0 8px}#a2hs b{color:#8ff5e2}#a2hs .sh{display:inline-block;padding:0 4px;border:1px solid rgba(190,170,255,.6);border-radius:5px}
#a2hs .btn{min-height:44px;padding:8px 22px}