:root{color-scheme:dark;--bg: oklch(.075 0 0);--ink: oklch(.97 .01 350);--muted: oklch(.73 .025 350);--pink: oklch(.65 .23 350);--yellow: oklch(.9 .18 100);--blue: oklch(.72 .18 235);--green: oklch(.83 .2 145);--line: oklch(.97 .01 350 / .2);font-family:Arial,Helvetica,sans-serif}*{box-sizing:border-box}html,body{width:100%;height:100%;margin:0;overflow:hidden;background:var(--bg);color:var(--ink)}body{min-height:100dvh;-webkit-user-select:none;user-select:none;touch-action:manipulation}button{color:inherit;font:inherit}button:focus-visible{outline:3px solid white;outline-offset:3px}#stage{position:fixed;inset:0;width:100%;height:100%}.shell{position:fixed;inset:0;pointer-events:none}.topbar,.intro,.result,.lanes,.fever,.controls{pointer-events:auto}.topbar{position:absolute;z-index:3;top:0;left:0;right:0;display:grid;grid-template-columns:1fr minmax(250px,440px) 1fr;align-items:center;gap:30px;padding:clamp(16px,2.5vw,34px)}.brand{display:flex;align-items:baseline;gap:9px}.brand-eye{color:var(--pink);font-size:28px}.brand strong{font:900 clamp(16px,2vw,28px)/1 "Arial Black",Impact,sans-serif;letter-spacing:-.04em}.brand small{color:var(--muted);font-size:10px}.boss-health span{display:block;margin-bottom:8px;text-align:center;font-weight:800;font-size:12px}.boss-health div{height:12px;padding:3px;border:1px solid var(--line);background:var(--bg)}.boss-health i{display:block;height:100%;width:100%;background:var(--pink);transition:width .2s ease-out}.timer{justify-self:end;display:flex;align-items:baseline;gap:5px}.timer strong{font:900 clamp(28px,4vw,56px)/.8 "Arial Black",Impact,sans-serif}.timer span{color:var(--muted);font-size:10px}.hud{position:absolute;z-index:2;left:clamp(16px,3vw,46px);top:46%;transform:translateY(-50%)}.score span,.combo span{display:block;color:var(--muted);font-size:10px}.score strong{font:900 clamp(22px,3vw,42px)/1 "Arial Black",Impact,sans-serif;font-variant-numeric:tabular-nums}.combo{margin-top:26px}.combo strong{display:block;color:var(--yellow);font:900 clamp(48px,8vw,112px)/.72 "Arial Black",Impact,sans-serif;letter-spacing:-.04em}.grade{min-height:52px;margin-top:20px;color:var(--ink);font:900 clamp(20px,3vw,42px)/1 "Arial Black",Impact,sans-serif;transform-origin:left center}.grade.pop{animation:pop .25s cubic-bezier(.22,1,.36,1)}@keyframes pop{50%{transform:scale(1.28) rotate(-3deg)}}.intro,.result{position:absolute;z-index:10;inset:0;display:grid;grid-template-columns:minmax(280px,.8fr) minmax(380px,1.2fr);align-items:center;gap:6vw;padding:clamp(28px,7vw,110px);background:#010101f0;transition:opacity .5s ease,visibility .5s}.intro.hidden,.result{opacity:0;visibility:hidden;pointer-events:none}.result.show{opacity:1;visibility:visible;pointer-events:auto}.monster-card{justify-self:center;transform:rotate(-5deg);text-align:center;color:var(--muted);font-weight:700}.monster-face{position:relative;width:min(35vw,390px);aspect-ratio:1;border-radius:46% 54% 42% 58%/55% 38% 62% 45%;background:var(--pink);box-shadow:28px 24px 0 var(--yellow);animation:monster-idle 1.5s ease-in-out infinite alternate}.monster-face i{position:absolute;top:35%;width:14%;aspect-ratio:1;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 8px var(--bg)}.monster-face i:first-child{left:25%}.monster-face i:nth-child(2){right:25%}.monster-face b{position:absolute;left:29%;right:29%;bottom:22%;height:10%;background:var(--bg);transform:rotate(3deg)}.monster-card span{display:block;margin-top:38px}@keyframes monster-idle{to{transform:scale(1.04) rotate(3deg)}}.intro-copy h1,.result h2{max-width:10ch;margin:0;font:900 clamp(48px,7vw,96px)/.86 "Arial Black",Impact,sans-serif;letter-spacing:-.04em;text-wrap:balance}.intro-copy>p{max-width:48ch;margin:28px 0;color:var(--muted);line-height:1.6}.howto{display:flex;flex-wrap:wrap;gap:10px 18px;margin-bottom:28px;color:var(--muted);font-size:12px}kbd{display:inline-grid;place-items:center;width:30px;height:30px;margin-right:4px;color:var(--bg);background:#fff;font:900 14px Arial;box-shadow:3px 3px 0 var(--pink)}#start,#retry{width:min(100%,430px);border:0;padding:19px 22px;display:flex;justify-content:space-between;background:var(--pink);cursor:pointer;font-weight:900;transition:transform .15s ease,background .15s ease}#start:hover,#retry:hover{transform:translateY(-4px);background:#ff58b4;background:oklch(.71 .23 350)}#start:active,#retry:active{transform:translateY(2px)}#start b{color:#fbf2f6b8;font-size:11px}.result{grid-template-columns:1fr;justify-items:center;text-align:center}.result p{margin:0 0 12px;color:var(--yellow);font-weight:900}.result h2{max-width:12ch}.result-stats{display:flex;gap:clamp(24px,6vw,90px);margin:44px 0}.result-stats span{color:var(--muted);font-size:11px}.result-stats b{display:block;margin-bottom:7px;color:var(--ink);font:900 clamp(24px,4vw,54px)/1 "Arial Black",Impact,sans-serif}#retry{justify-content:center}.fever{position:absolute;z-index:4;left:50%;bottom:122px;width:min(560px,62vw);transform:translate(-50%);display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:14px;opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s}.playing .fever{opacity:1;visibility:visible}.fever-label span,.fever-label strong{display:block;font-size:9px;white-space:nowrap}.fever-label strong{color:var(--yellow);margin-top:3px}.fever-track{height:12px;padding:3px;border:1px solid var(--line)}.fever-track i{display:block;width:0;height:100%;background:var(--yellow);transition:width .12s ease-out}#fever-button{border:0;padding:10px 13px;color:var(--bg);background:var(--yellow);cursor:pointer;font-size:10px;font-weight:900}#fever-button:disabled{color:var(--muted);background:#161616;cursor:default}.lanes{position:absolute;z-index:4;left:50%;bottom:max(24px,env(safe-area-inset-bottom));transform:translate(-50%);display:grid;grid-template-columns:repeat(4,1fr);gap:8px;width:min(650px,64vw);opacity:0;visibility:hidden;transition:opacity .3s}.playing .lanes{opacity:1;visibility:visible}.lanes button{height:70px;border:0;cursor:pointer;color:var(--bg);font-weight:900;transition:transform .08s ease,filter .08s ease}.lanes button:nth-child(1){background:var(--pink)}.lanes button:nth-child(2){background:var(--yellow)}.lanes button:nth-child(3){background:var(--blue)}.lanes button:nth-child(4){background:var(--green)}.lanes button.active{transform:translateY(7px) scale(.97);filter:brightness(1.35)}.lanes span{display:inline-grid;place-items:center;width:32px;height:32px;border:2px solid currentColor}.controls{position:absolute;z-index:4;right:clamp(16px,3vw,46px);bottom:34px;display:flex;align-items:center;gap:12px;color:var(--muted);font-size:10px;opacity:0;visibility:hidden}.playing .controls{opacity:1;visibility:visible}.controls button{border:1px solid var(--line);padding:9px 11px;background:var(--bg);cursor:pointer;font-size:10px}body.fever-mode{animation:fever-flash .22s linear infinite alternate}@keyframes fever-flash{to{background:#200011;background:oklch(.16 .08 350)}}@media(max-width:760px){.topbar{grid-template-columns:1fr 1.6fr auto;gap:10px;padding:14px}.brand small,.brand-eye{display:none}.brand strong{font-size:14px}.boss-health span{font-size:9px}.timer strong{font-size:28px}.hud{top:106px;left:14px;transform:none}.score strong{font-size:20px}.combo{margin-top:12px}.combo strong{font-size:54px}.grade{margin-top:10px;font-size:22px}.intro{grid-template-columns:1fr;align-content:end;padding:88px 20px 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