/* lumi shared UI — tokens follow the 3D scene (day / dusk / night) */
:root{
  --ink:#22303A; --ink-soft:rgba(34,48,58,.62);
  --glass:rgba(255,255,255,.58); --glass-strong:rgba(255,255,255,.86); --glass-line:rgba(255,255,255,.92);
  --chip:#22303A; --chip-ink:#FFFFFF;
  --accent:#1F7FD0; --accent-soft:#9ADFFF;
  --bg:#E6ECEC; --cloud:#8C97A3; --puff:rgba(120,130,142,.42);
  --good:#2E9E6A; --miss:#9AA3AD;
  --shadow:0 1px 2px rgba(20,34,48,.05), 0 10px 30px rgba(20,34,48,.10);
  --f-display:"Kiwi Maru","Hiragino Maru Gothic ProN","M PLUS Rounded 1c",serif;
  --f-body:"M PLUS Rounded 1c","Hiragino Maru Gothic ProN",system-ui,sans-serif;
  --f-mark:"Fredoka","M PLUS Rounded 1c",system-ui,sans-serif;
  --gutter:clamp(16px, 3vw, 40px);
  color-scheme:light;
}
:root[data-scene="dusk"]{
  --ink:#3B2748; --ink-soft:rgba(59,39,72,.66);
  --glass:rgba(255,244,246,.52); --glass-strong:rgba(255,248,249,.86); --glass-line:rgba(255,255,255,.8);
  --chip:#3B2748; --chip-ink:#FFF6F2; --bg:#EBC3C0; --cloud:#8F7A97; --puff:rgba(120,100,130,.36);
}
:root[data-scene="night"]{
  --ink:#EEF1FF; --ink-soft:rgba(226,231,255,.7);
  --glass:rgba(24,30,72,.5); --glass-strong:rgba(92,104,190,.62); --glass-line:rgba(160,170,255,.22);
  --chip:#EEF1FF; --chip-ink:#141A44; --bg:#0D1233; --cloud:#A6AEDA; --puff:rgba(180,186,225,.3);
  --good:#7BE0B0; --miss:#8E96C8;
  --shadow:0 1px 2px rgba(0,0,0,.2), 0 12px 34px rgba(0,0,0,.35);
  color-scheme:dark;
}
:root[lang="zh-Hans"]{--f-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;--f-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent;transition:background-color .6s ease,color .6s ease}
button{font:inherit;color:inherit}
a{color:inherit}
[hidden]{display:none!important}
.glass{background:var(--glass);border:1px solid var(--glass-line);box-shadow:var(--shadow);backdrop-filter:blur(16px) saturate(1.5);-webkit-backdrop-filter:blur(16px) saturate(1.5);transition:background-color .6s ease,border-color .6s ease}
.stage-canvas{position:absolute;inset:0;width:100%;height:100%;display:block;touch-action:none;outline:none;opacity:0;transition:opacity 1.1s ease}
.stage-canvas.ready{opacity:1}
button:focus-visible,a:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

/* ---------- header ---------- */
.top{position:absolute;left:0;right:0;top:0;z-index:8;display:flex;align-items:center;justify-content:space-between;gap:10px;padding:calc(env(safe-area-inset-top, 0px) + 16px) var(--gutter) 0;pointer-events:none}
.top > *{pointer-events:auto}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;min-width:0}
.brand svg{width:34px;height:34px;flex:none}
.brand .blob{fill:var(--accent-soft);transition:fill .6s}
.wordmark{font-family:var(--f-mark);font-weight:600;font-size:28px;letter-spacing:-.01em;line-height:1}
.page-chip{font-size:12px;font-weight:800;letter-spacing:.1em;padding:6px 12px;border-radius:999px;white-space:nowrap}
.top-right{display:flex;align-items:center;gap:8px}
.back{display:flex;align-items:center;gap:6px;height:44px;padding:0 15px 0 11px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.08em;text-decoration:none;white-space:nowrap}
.back svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.lang{display:flex;align-items:center;gap:2px;height:44px;padding:4px;border-radius:999px}
.lang button{height:34px;min-width:36px;padding:0 11px;border:0;border-radius:999px;background:transparent;cursor:pointer;font-size:12px;font-weight:800;letter-spacing:.04em;color:var(--ink-soft);transition:background-color .25s,color .25s}
.lang button[data-lang="en"]{font-family:var(--f-mark);font-weight:600;font-size:13px}
.lang button[aria-pressed="true"]{background:var(--glass-strong);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.05),0 3px 10px rgba(0,0,0,.08)}
.lang .globe{display:none;width:16px;height:16px;margin-left:6px;fill:none;stroke:var(--ink-soft);stroke-width:1.5;flex:none;pointer-events:none}
.sound{display:flex;align-items:center;gap:8px;height:44px;padding:0 15px 0 12px;border-radius:999px;cursor:pointer;font-size:12px;font-weight:800;letter-spacing:.1em;transition:transform .2s ease}
.sound:active{transform:scale(.96)}
.sound .bars{display:flex;align-items:flex-end;gap:2px;height:14px}
.sound .bars i{display:block;width:3px;border-radius:2px;background:currentColor;height:5px;opacity:.55}
.sound .bars i:nth-child(2){height:9px}.sound .bars i:nth-child(3){height:6px}.sound .bars i:nth-child(4){height:11px}
.sound[aria-pressed="true"] .bars i{opacity:1;animation:eq 1s ease-in-out infinite}
.sound[aria-pressed="true"] .bars i:nth-child(2){animation-delay:-.35s}.sound[aria-pressed="true"] .bars i:nth-child(3){animation-delay:-.7s}.sound[aria-pressed="true"] .bars i:nth-child(4){animation-delay:-.15s}
@keyframes eq{0%,100%{height:4px}50%{height:14px}}
.sound .state{font-family:var(--f-mark);font-weight:600;font-size:14px;letter-spacing:.02em;min-width:2em;color:var(--ink-soft)}
.sound[aria-pressed="true"] .state{color:var(--ink)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;border:0;cursor:pointer;font-size:14px;font-weight:800;letter-spacing:.08em;text-decoration:none;white-space:nowrap;transition:transform .2s ease,box-shadow .2s ease}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--accent);color:#fff;box-shadow:0 6px 20px color-mix(in srgb, var(--accent) 40%, transparent)}
:root[data-scene="night"] .btn.primary{color:#101532}
.btn.ghost{background:var(--glass-strong);color:var(--ink);box-shadow:var(--shadow)}
.btn svg{width:18px;height:18px;fill:currentColor}

/* ---------- sheet (menus / results) ---------- */
.sheet-wrap{position:absolute;inset:0;z-index:9;display:grid;place-items:center;padding:16px;padding-top:calc(env(safe-area-inset-top, 0px) + 76px);pointer-events:none}
.sheet{pointer-events:auto;width:min(480px, 100%);max-height:calc(100% - 8px);overflow:auto;border-radius:30px;padding:26px 24px 22px;display:flex;flex-direction:column;gap:16px;text-align:center;animation:sheetIn .5s cubic-bezier(.2,.9,.3,1.15)}
@keyframes sheetIn{from{opacity:0;transform:translateY(18px) scale(.97)}}
.sheet h2{font-family:var(--f-display);font-weight:500;font-size:clamp(26px, 4vw, 34px);letter-spacing:.04em;text-wrap:balance}
.sheet .lede{font-size:14px;line-height:1.85;color:var(--ink-soft);text-wrap:pretty}
.sheet .actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.eyebrow{font-family:var(--f-mark);font-weight:500;font-size:13px;letter-spacing:.14em;color:var(--ink-soft);text-transform:uppercase}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(90px,1fr));gap:8px}
.stat{border-radius:18px;padding:10px 8px;background:color-mix(in srgb, var(--glass-strong) 70%, transparent)}
.stat b{display:block;font-family:var(--f-mark);font-weight:600;font-size:24px;font-variant-numeric:tabular-nums}
.stat span{font-size:11px;font-weight:800;letter-spacing:.08em;color:var(--ink-soft)}
.big-score{font-family:var(--f-mark);font-weight:600;font-size:clamp(48px, 9vw, 72px);line-height:1;font-variant-numeric:tabular-nums;color:var(--accent)}
.rank{font-family:var(--f-mark);font-weight:600;font-size:22px;letter-spacing:.06em}
.record{display:inline-block;align-self:center;padding:5px 14px;border-radius:999px;background:var(--accent);color:#fff;font-size:12px;font-weight:800;letter-spacing:.12em;animation:recordPop 1s ease infinite alternate}
:root[data-scene="night"] .record{color:#101532}
@keyframes recordPop{to{transform:scale(1.06)}}
.best-line{font-size:12px;font-weight:700;color:var(--ink-soft);letter-spacing:.06em}

/* ---------- fx ---------- */
.fx{position:absolute;inset:0;pointer-events:none;overflow:hidden;z-index:7}
.spark{position:absolute;left:0;top:0;width:var(--s);height:var(--s);color:var(--c);animation:spark var(--d) cubic-bezier(.2,.8,.3,1) forwards}
.spark svg{width:100%;height:100%;display:block;filter:drop-shadow(0 0 6px var(--c))}
@keyframes spark{0%{opacity:0;transform:translate(-50%,-50%) scale(.2)}18%{opacity:1;transform:translate(calc(-50% + var(--dx) * .35), calc(-50% + var(--dy) * .35)) scale(1.15) rotate(calc(var(--r) * .4))}100%{opacity:0;transform:translate(calc(-50% + var(--dx)), calc(-50% + var(--dy))) scale(.6) rotate(var(--r))}}
.puff{position:absolute;left:0;top:0;width:var(--s);height:calc(var(--s) * .7);border-radius:50%;background:radial-gradient(closest-side, var(--puff) 0 45%, transparent 100%);filter:blur(1px);animation:puff var(--d) ease-out forwards}
@keyframes puff{0%{opacity:0;transform:translate(-50%,-50%) scale(.4)}20%{opacity:1}100%{opacity:0;transform:translate(calc(-50% + var(--dx)), calc(-50% - 130px)) scale(1.9)}}
.ftext{position:absolute;left:0;top:0;font-family:var(--f-mark);font-weight:600;font-size:var(--s,24px);color:var(--c,var(--accent));white-space:nowrap;text-shadow:0 0 14px var(--glass-strong),0 1px 0 var(--glass-strong);animation:ftext var(--d,.9s) cubic-bezier(.2,.8,.3,1) forwards}
@keyframes ftext{0%{opacity:0;transform:translate(-50%,-30%) scale(.6)}20%{opacity:1;transform:translate(-50%,-60%) scale(1.12)}100%{opacity:0;transform:translate(-50%,-150%) scale(1)}}
.toast{position:absolute;z-index:8;left:50%;top:24%;transform:translate(-50%,0);pointer-events:none;font-family:var(--f-display);font-size:clamp(30px, 4.4vw, 54px);letter-spacing:.06em;color:var(--accent);text-shadow:0 0 24px color-mix(in srgb, var(--accent-soft) 80%, transparent),0 2px 0 var(--glass-strong);white-space:nowrap;opacity:0}
.toast.show{animation:toast var(--d,1.8s) cubic-bezier(.2,.8,.3,1) forwards}
@keyframes toast{0%{opacity:0;transform:translate(-50%,16px) scale(.8)}15%{opacity:1;transform:translate(-50%,0) scale(1.06)}25%{transform:translate(-50%,0) scale(1)}80%{opacity:1}100%{opacity:0;transform:translate(-50%,-18px)}}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.nogl{position:absolute;inset:0;display:none;place-items:center;text-align:center;padding:32px;font-weight:700;line-height:1.9;z-index:20}
.nogl.show{display:grid}

@media (max-width: 820px), (max-aspect-ratio: 9/10){
  .top{padding-top:calc(env(safe-area-inset-top, 0px) + 12px)}
  .wordmark{font-size:24px}
  .brand svg{width:28px;height:28px}
  .sound .label,.back .label,.page-chip{display:none}
  .sound,.back,.lang{height:40px}
  .lang button{height:32px;padding:0 9px;font-size:11px}
  .back{padding:0 12px}
}
@media (max-width: 440px){
  .top{gap:6px}
  .lang button:not([aria-pressed="true"]){display:none}
  .lang .globe{display:block}
  .lang button[aria-pressed="true"]{box-shadow:none;background:transparent;padding:0 9px 0 5px}
  .sound .state{display:none}
  .sound{padding:0 11px}
}
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
}

/* ---------- share sheet ---------- */
.share-wrap{z-index:12;background:color-mix(in srgb, var(--bg) 35%, transparent);pointer-events:auto}
.sheet.share{width:min(560px, 100%);gap:12px;padding:20px 20px 18px;text-align:left}
.share-top{display:flex;align-items:center;justify-content:space-between;gap:10px}
.share-top h2{font-size:22px}
.x-close{border:0;background:transparent;cursor:pointer;font-size:12px;font-weight:800;letter-spacing:.08em;color:var(--ink-soft);padding:8px 10px;border-radius:999px}
.share-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:4px;padding:4px;border-radius:999px;background:color-mix(in srgb, var(--glass-strong) 45%, transparent)}
.share-tabs button{height:36px;border:0;border-radius:999px;background:transparent;cursor:pointer;font-size:12px;font-weight:800;letter-spacing:.04em;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.share-tabs button[aria-selected="true"]{background:var(--glass-strong);color:var(--ink);box-shadow:0 1px 2px rgba(0,0,0,.05),0 4px 12px rgba(0,0,0,.08)}
.share-img{display:block;width:100%;max-width:100%;max-height:36vh;object-fit:contain;border-radius:16px;background:rgba(0,0,0,.06);-webkit-touch-callout:default;user-select:auto}
.share-img.tall{max-height:40vh}
.share-hint,.share-note{font-size:12px;font-weight:700;color:var(--ink-soft);text-align:center}
.share-text{width:100%;resize:none;border:1px solid var(--glass-line);border-radius:16px;padding:10px 12px;font:500 13px/1.7 var(--f-body);color:var(--ink);background:color-mix(in srgb, var(--glass-strong) 70%, transparent)}
.share-actions .btn{height:44px;padding:0 18px;font-size:13px}
@media (max-width: 460px){ .share-actions .btn{flex:1 1 100%} .share-tabs button{font-size:11px} }
.img-pick{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.img-pick button{display:flex;align-items:center;gap:10px;padding:8px;border-radius:16px;border:2px solid transparent;background:color-mix(in srgb, var(--glass-strong) 55%, transparent);cursor:pointer;text-align:left;min-width:0;transition:border-color .2s, background-color .2s}
.img-pick button[aria-checked="true"]{border-color:var(--accent);background:var(--glass-strong)}
.img-pick img{width:64px;height:40px;object-fit:cover;border-radius:8px;flex:none;background:rgba(0,0,0,.08)}
.img-pick span{display:flex;flex-direction:column;min-width:0}
.img-pick b{font-size:13px;font-weight:800;letter-spacing:.04em}
.img-pick small{font-size:11px;font-weight:700;color:var(--ink-soft);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
@media (max-width: 460px){ .img-pick img{width:48px;height:32px} }
.sheet.share[aria-busy="true"] .share-img,.sheet.share[aria-busy="true"] .share-text{opacity:.45;transition:opacity .15s}