:root{font-family:Inter,"Avenir Next","Noto Sans JP",system-ui,sans-serif;color:#eef9ff;background:#101d2e;font-synthesis:none}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 48% 40%,#244359 0,transparent 60%),#101d2e}button{font:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}button:focus-visible,canvas:focus-visible{outline:3px solid #f9fa7a;outline-offset:4px}button:disabled{cursor:default;opacity:.4}button[hidden],[hidden]{display:none!important}.layout{min-height:100svh;display:grid;grid-template-columns:minmax(190px,280px) minmax(330px,470px) minmax(120px,190px);align-items:center;justify-content:center;gap:clamp(25px,4vw,70px);padding:26px 32px}.brand{align-self:center}.eyebrow{font-size:11px;letter-spacing:.16em;font-weight:800;display:flex;align-items:center;gap:8px;color:#b9d1e2}.eyebrow i{height:7px;width:7px;border-radius:50%;background:#c7ff53}.brand h1{font-size:clamp(42px,5vw,72px);font-weight:950;line-height:.86;letter-spacing:-.07em;margin:27px 0}.brand h1>span{color:#c7ff53}.brand h1>b{display:block;font-size:19px;letter-spacing:.03em;line-height:1.5;margin-top:20px}.brand>p{color:#9eb5c6;font-size:15px;line-height:1.9}.instructions{margin-top:45px;display:grid;gap:24px}.instructions>div{display:flex;gap:14px;align-items:center}.instructions b{color:#c7ff53;font:700 12px monospace;border:1px solid #3f5461;border-radius:50%;width:31px;height:31px;display:grid;place-items:center}.instructions span{font-size:14px;font-weight:700}.instructions small{display:block;color:#88a4b6;font-size:12px;font-weight:400;line-height:1.9}.brand .fine{font-size:12px;margin-top:40px;color:#69899d}.game-shell{height:min(860px,calc(100svh - 52px));width:100%;max-height:1000px;min-height:540px;position:relative;border-radius:28px;overflow:hidden;background:#c5eef0;box-shadow:0 32px 85px #030d1766,0 0 0 1px #ffffff26;isolation:isolate}canvas{width:100%;height:100%;display:block;touch-action:none;outline:none}.hud{position:absolute;top:0;left:0;right:0;padding:22px 21px 0;display:flex;align-items:center;gap:11px;pointer-events:none;z-index:4}.hud button{pointer-events:auto}.level-tag{color:#13344a}.level-tag small{font-size:10px;display:block;letter-spacing:.15em;font-weight:800}.level-tag strong{font-size:26px;line-height:1.1;letter-spacing:-.04em}.progress-wrap{flex:1;margin:3px 4px 0}.progress{height:6px;border-radius:7px;background:#93c6cd;overflow:hidden}.progress i{display:block;background:#23485c;width:0;height:100%;transition:width .25s}.progress-wrap>small{font-size:9px;color:#456d7e;display:block;text-align:right;margin-top:5px;letter-spacing:.08em;font-weight:800}.icon-button{width:39px;height:39px;border:1px solid #ffffff66;border-radius:13px;background:#efffff8c;color:#23485c;font-weight:800;position:relative;font-size:22px;display:grid;place-items:center}.slash{position:absolute;width:23px;height:2px;background:#23485c;transform:rotate(-46deg);border:1px solid #ddf6f6}.sound-on .slash{display:none}.count-display{position:absolute;top:98px;left:50%;transform:translateX(-50%);text-align:center;color:#123447;pointer-events:none;z-index:3}.count-display small{font-size:10px;letter-spacing:.2em;font-weight:800;display:block}.count-display strong{display:block;font-size:44px;line-height:1.1;letter-spacing:-.05em;text-shadow:0 2px #d9ffff}.count-display.bump{animation:bump .24s ease-out}.toast{position:absolute;top:27%;left:0;right:0;text-align:center;pointer-events:none;z-index:6;font-size:31px;font-weight:950;color:#ffffff;text-shadow:0 2px 0 #153f50,0 3px 14px #17394d70;opacity:0;transition:opacity .15s}.toast.show{opacity:1}.bottom-hint{position:absolute;bottom:22px;left:20px;right:20px;text-align:center;pointer-events:none;color:#335c72;font-size:12px;letter-spacing:.06em;font-weight:700;z-index:2}.boss-hud{position:absolute;top:185px;left:18%;right:18%;z-index:5;pointer-events:none}.boss-hud>div:first-child{display:flex;justify-content:space-between;color:#aa294a;font-size:12px;font-weight:900;margin-bottom:6px}.boss-track{height:10px;background:#efb8c1;border-radius:8px;overflow:hidden;border:2px solid #fff8}.boss-track i{display:block;height:100%;width:100%;background:#fa5270;transition:width .1s}.screen{position:absolute;inset:0;z-index:8;background:linear-gradient(180deg,#e2ffff11 0,#a5e0e500 42%,#244b6166 76%,#14324b66 100%);pointer-events:none;display:flex;flex-direction:column;justify-content:space-between;padding:175px 25px 24px}.screen .panel{pointer-events:auto}.start-title{color:#173d52;align-self:flex-start;padding-left:7px;transform:rotate(-3deg)}.start-title .eyebrow{font-size:10px;color:#467286}.start-title h2{font-size:32px;line-height:1.35;letter-spacing:-.06em;margin:12px 0;font-weight:950}.panel{padding:24px 22px 18px;border-radius:22px;background:#fcfffff5;box-shadow:0 9px 0 #183a4b22,0 15px 35px #173e5b26;color:#183f53;text-align:center;backdrop-filter:blur(12px)}.panel-eyebrow{color:#528191;font-size:11px;letter-spacing:.07em;font-weight:800}.panel h2{font-size:21px;line-height:1.4;letter-spacing:-.03em;margin:7px 0 11px;font-weight:900}.panel p{color:#618294;font-size:12px;line-height:1.8;margin:0 0 19px}.primary{border:0;border-radius:13px;display:flex;justify-content:center;align-items:center;gap:16px;background:#c7ff53;color:#173a39;box-shadow:0 4px 0 #8db537;width:100%;padding:17px 10px;font-size:17px;font-weight:900;transition:transform .12s,filter .12s}.primary:hover{filter:brightness(1.04);transform:translateY(-2px)}.primary:active{transform:translateY(3px);box-shadow:0 1px 0 #8db537}.primary span{font-size:11px;letter-spacing:.16em}.panel>small{display:block;font-size:10px;color:#839dab;margin-top:15px}.secondary{border:0;background:none;color:#557a8a;padding:12px 10px 0;font-size:13px;font-weight:700}.screen.result{padding-top:0;justify-content:center;background:#153d5470;backdrop-filter:blur(3px)}.screen.result .start-title{display:none}.screen.result .panel{padding:30px 23px 23px}.screen.result h2{font-size:34px}.screen.result .panel-eyebrow{color:#448995}.result-stats{display:flex;justify-content:space-around;padding:14px 0 20px;margin:0 0 12px;border-top:1px solid #dce9ee;gap:10px}.result-stats strong{display:block;font-size:28px;line-height:1.25;color:#183f53}.result-stats span{font-size:11px;color:#7895a6}.score-side{align-self:center}.mini-label{font-size:10px;letter-spacing:.12em;color:#88a5b8;font-weight:800}.score-side>strong{font-size:57px;font-weight:800;letter-spacing:-.06em;display:block;line-height:1.2;margin-top:10px}.score-side>span{color:#7292a8;font-size:11px}.record-line{height:1px;background:#345165;margin:29px 0;width:75px}.side-tip{margin-top:74px;font-size:15px;color:#b6c7d4;line-height:1.8}.side-tip b{font-size:25px;color:#c7ff53}.side-tip span{display:block;color:#718da2;font-size:12px;margin-top:10px;line-height:1.8}.live-region{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}@keyframes bump{50%{transform:translateX(-50%) scale(1.16)}}@media(max-width:1000px){.layout{grid-template-columns:210px minmax(330px,440px);gap:35px}.score-side{display:none}.brand h1{font-size:55px}}@media(max-width:700px){body{background:#c5eef0}.layout{display:block;padding:0;min-height:100svh}.brand,.score-side{display:none}.game-shell{width:100%;height:100svh;max-height:none;min-height:0;border-radius:0;box-shadow:none}.hud{padding-top:max(18px,env(safe-area-inset-top));padding-left:20px;padding-right:20px}.screen{padding-bottom:max(26px,env(safe-area-inset-bottom));padding-top:clamp(155px,23svh,210px);padding-left:25px;padding-right:25px}.screen.result{padding-top:0}.start-title h2{font-size:33px}.bottom-hint{bottom:max(19px,env(safe-area-inset-bottom))}.panel{max-width:410px;width:100%;align-self:center}.count-display{top:91px}}@media(max-height:690px){.screen{padding-top:140px}.start-title h2{font-size:24px}.panel{padding:17px 18px 15px}.panel p{margin-bottom:13px}.panel>small{margin-top:11px}.primary{padding:14px}.count-display{top:85px}.count-display strong{font-size:34px}.game-shell{min-height:0}}@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}
/* Short landscape viewports keep every real control visible. */
@media(max-height:520px){
 .layout{padding:0;min-height:100svh;display:flex;justify-content:center;gap:0}
 .brand,.score-side{display:none}
 .game-shell{height:100svh;max-height:none;width:min(100%,560px);border-radius:0;min-height:0}
 .hud{padding-top:max(10px,env(safe-area-inset-top));padding-left:18px;padding-right:18px}
 .icon-button{height:35px;width:35px;border-radius:11px}
 .count-display{top:70px;left:28px;transform:none;text-align:left}
 .count-display small{font-size:9px}
 .count-display strong{font-size:28px}
 .count-display.bump{animation:none}
 .boss-hud{top:77px;left:34%;right:11%}
 .toast{top:33%;font-size:24px}
 .bottom-hint{bottom:10px}
 .screen{padding:75px 16px 12px;justify-content:flex-end}
 .start-title{display:none}
 .panel{padding:15px 18px 13px;max-width:400px}
 .panel h2{font-size:20px;margin:5px 0 8px}
 .panel p{font-size:12px;line-height:1.5;margin-bottom:12px}
 .panel>small{display:none}
 .primary{padding:12px 10px;font-size:16px}
 .secondary{padding-top:10px}
 .screen.result{padding:12px 16px;justify-content:center}
 .screen.result .panel{padding:15px 18px}
 .screen.result h2{font-size:27px;margin:5px 0 8px}
 .result-stats{padding:9px 0 10px;margin-bottom:8px}
 .result-stats strong{font-size:23px}
}
@media(max-height:360px){
 .screen{padding-top:60px;padding-bottom:8px}
 .panel{padding-top:11px;padding-bottom:11px}
 .panel p{margin-bottom:9px}
 .screen.result .panel{padding:10px 18px}
 .screen.result .panel-eyebrow{display:none}
 .screen.result h2{font-size:24px;margin-top:0}
 .screen.result .panel p{font-size:11px}
 .screen.result .secondary{padding-top:8px}
}
/* Keep actions reachable with enlarged text or unusually small windows. */
.screen .panel{min-height:0;max-height:100%;overflow-y:auto;overscroll-behavior:contain}

.collection-link{display:inline-flex;align-items:center;justify-content:center;min-height:32px;margin-top:8px;padding:4px 10px;color:#476d80;font-size:12px;font-weight:700;text-underline-offset:3px}.collection-link:focus-visible{outline:3px solid #537d15;outline-offset:2px;border-radius:4px}
@media(max-height:520px){.collection-link{min-height:28px;margin-top:3px;padding:3px 9px}}