@charset "UTF-8";
:root{color-scheme:dark;--bg:#080d19;--ink:#eef8ff;--cyan:#81edff;--pink:#f4a5ff;--line:#91baff2b;--mono:"SFMono-Regular",Consolas,"Liberation Mono",monospace;--pitch-top:48px;--pitch-height:clamp(110px,24svh,200px)}
*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;overflow:hidden;background:var(--bg);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;-webkit-font-smoothing:antialiased}
button,input,select{font:inherit}button{cursor:pointer;color:inherit}button:focus-visible,select:focus-visible,input:focus-visible{outline:2px solid #e5faff;outline-offset:4px}button:disabled{cursor:wait;opacity:.35}[hidden]{display:none!important}
.game{position:relative;width:100%;height:100svh;isolation:isolate;background:radial-gradient(ellipse at 50% 42%,#1b2c4f55,transparent 68%),#080d19}
.hud{position:absolute;z-index:3;left:max(22px,env(safe-area-inset-left));right:max(18px,env(safe-area-inset-right));top:max(12px,env(safe-area-inset-top));height:28px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-family:var(--mono);pointer-events:none}
.score{display:flex;align-items:baseline;gap:12px}.score>span{font-size:9px;letter-spacing:.15em;color:#8aa2bd}.score strong{font-size:23px;font-weight:600;letter-spacing:.04em;font-variant-numeric:tabular-nums;text-shadow:0 0 15px #b3d7ff25}
.hud-center{position:absolute;left:50%;transform:translateX(-50%);display:flex;align-items:baseline;gap:24px;color:#95a7bf;font-size:11px;white-space:nowrap}.combo{font-size:9px;letter-spacing:.09em}.combo strong{font-size:21px;color:#e2efff;font-weight:500;margin-right:5px}.hud-controls{display:flex;gap:10px;pointer-events:auto}.icon-button{width:31px;height:31px;display:grid;place-items:center;background:#10203955;border:1px solid #b1d5ff33;border-radius:5px;padding:6px}.icon-button svg{width:19px;height:19px;fill:none;stroke:#bfd5ed;stroke-width:1.5}.icon-button#stop svg{fill:#bfd5ed;stroke:none}.icon-button:hover{background:#294668}
.pitch-chart{position:absolute;z-index:2;left:0;right:0;top:calc(var(--pitch-top) + env(safe-area-inset-top));height:var(--pitch-height);background:linear-gradient(180deg,#0a1324cc,#101e35b3 70%,#0a15270d);border-block:1px solid #93caff19;pointer-events:none}.pitch-chart canvas{display:block;width:100%;height:100%}.voice-readout{position:absolute;right:22px;bottom:7px;font:10px var(--mono);color:#a6b3c5;letter-spacing:.05em}
.key-stage{position:absolute;inset:calc(var(--pitch-top) + var(--pitch-height) + env(safe-area-inset-top) - 3px) 0 0;overflow:hidden}.key-stage>canvas{display:block;width:100%;height:100%}.key-pads{position:absolute;display:grid;grid-template-columns:repeat(4,1fr);gap:2px;z-index:3;height:clamp(30px,6svh,48px)}.key-pads button{touch-action:none;user-select:none;-webkit-user-select:none;border:0;border-top:1px solid #a8d8ff38;background:linear-gradient(#9bd8ff12,#87bcff02);color:#a6c8e4;border-radius:0 0 5px 5px;transition:background .06s}.key-pads button:nth-child(2),.key-pads button:nth-child(3){color:#e4c9f7;background:linear-gradient(#f2b2ff10,#f2b2ff02);border-color:#f2c6ff30}.key-pads button.pressed{background:linear-gradient(#c0f6ff66,#8ee6ff13);color:white}.key-pads kbd{font:500 17px var(--mono);text-shadow:0 0 10px currentColor}
.judgement{position:absolute;top:51%;left:50%;transform:translate(-50%,-50%);pointer-events:none;text-align:center;opacity:0;z-index:2}.judgement strong{font:italic 800 clamp(24px,3.8vw,43px) var(--mono);letter-spacing:.06em;color:#fff7bf;text-shadow:0 0 16px #d8b7ff88,0 2px 0 #413257}.judgement[data-grade="MISS"] strong{color:#f4a8bd}.judgement[data-grade="GREAT"] strong{color:#abedff}.judgement[data-grade="GOOD"] strong{color:#dae2ff}.judgement.pop strong{animation:pop .14s ease-out;display:block}.countdown{position:absolute;top:47%;left:50%;transform:translate(-50%,-50%);font:300 clamp(60px,10vw,110px) var(--mono);color:white;text-shadow:0 0 40px #a8d5ff99;z-index:4;pointer-events:none}
.start-button{display:flex;align-items:center;justify-content:center;gap:13px;min-height:57px;min-width:182px;padding:0 27px;background:#d8f6ff;color:#14263b;border:1px solid #fff;border-radius:5px;font-size:16px;font-weight:700;box-shadow:0 0 30px #82d3ff24;cursor:pointer}.start-button svg{width:21px;height:21px;fill:currentColor}.key-stage>.start-button{position:absolute;left:50%;top:48%;transform:translate(-50%,-50%);z-index:4}.start-button:hover{background:#fff;box-shadow:0 0 36px #82d3ff55}body[data-phase="playing"] .key-stage>.start-button,body[data-phase="results"] .key-stage>.start-button{display:none}body[data-phase="starting"] .start-button{white-space:nowrap;min-width:220px}
.toast{position:absolute;z-index:10;bottom:max(12px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);padding:8px 14px;border:1px solid #9ac9ed33;background:#0b1528ec;color:#bcd3e8;font-size:11px;max-width:calc(100% - 32px);text-align:center;pointer-events:none;border-radius:4px}.toast:empty{display:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
dialog{color:var(--ink);background:#101c2e;border:1px solid #7598bf70;border-radius:10px;max-width:calc(100% - 32px);width:420px;padding:32px;box-shadow:0 20px 100px #0009}dialog::backdrop{background:#030815c7;backdrop-filter:blur(6px)}dialog h2{font-size:24px;margin:5px 0 25px;font-weight:600;letter-spacing:.02em}.dialog-close{position:absolute;top:10px;right:13px;border:0;background:transparent;font-size:25px;color:#9bb5d1;padding:0 5px}.setting-row{display:flex;align-items:center;justify-content:space-between;gap:25px;min-height:62px;width:100%;border:0;border-bottom:1px solid var(--line);background:none;color:#d2e6f9;font-size:14px}.setting-row select{height:35px;padding:0 10px;background:#172d46;border:1px solid #79b1d866;border-radius:4px;color:var(--ink);font:12px var(--mono)}.setting-row input{width:19px;height:19px;accent-color:#91e3ff}.sound-switch[aria-pressed="false"]{color:#6f8299}.eyebrow{font:10px var(--mono);letter-spacing:.15em;color:#98badb}.result-rank{position:absolute;right:35px;top:75px;font:italic 600 66px var(--mono);color:#d1f1ff;text-shadow:0 0 28px #82b8ff55}.result-main>span{font:10px var(--mono);letter-spacing:.12em;color:#8baaca}.result-main>strong{display:block;font:500 38px var(--mono);margin-top:5px}.result-details{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;border-block:1px solid var(--line);padding:20px 0;margin-top:20px}.result-details>div{display:flex;flex-direction:column;gap:10px}.result-details span{font-size:9px;color:#95acc3}.result-details strong{font:500 24px var(--mono)}dialog p{font-size:11px;line-height:1.7;color:#97aec4;margin:18px 0 22px}dialog .start-button{width:100%;min-height:49px}
@keyframes pop{from{transform:scale(1.1)}to{transform:scale(1)}}
@media(max-width:600px){:root{--pitch-top:45px;--pitch-height:clamp(115px,23svh,175px)}.hud{left:13px;right:12px;gap:10px}.score{gap:7px}.score>span{font-size:7px}.score strong{font-size:17px;letter-spacing:0}.hud-center{gap:12px;font-size:9px;left:auto;right:48px;transform:none}.combo{font-size:0}.combo strong{font-size:18px;margin:0}.score+ .hud-center{font-size:9px}.hud-controls{gap:6px}.icon-button{width:28px;height:28px;padding:5px}.hud:has(#stop:not([hidden])) .hud-center{right:82px}.voice-readout{right:12px;font-size:9px}.key-pads kbd{font-size:15px}.start-button{min-height:49px;min-width:155px;font-size:14px}dialog{padding:26px}.result-main>strong{font-size:32px}.result-rank{right:29px}}
@media(max-height:500px){:root{--pitch-top:36px;--pitch-height:clamp(83px,24svh,115px)}.hud{top:5px}.score strong{font-size:18px}.key-pads{height:26px}.key-pads kbd{font-size:12px}.start-button{min-height:42px}.voice-readout{bottom:3px}.icon-button{height:26px;width:26px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important}}

.title-screen{height:100svh;width:100%;position:relative;display:grid;place-items:center;isolation:isolate;overflow:hidden;background:radial-gradient(ellipse at 50% 43%,#213e665e,transparent 60%),#080d19}
.title-screen:after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(180deg,#080d1910,#080d1900 45%,#080d19cc)}
.title-beams{position:absolute;inset:-35% -20%;z-index:-2;transform:rotate(-28deg);opacity:.75;pointer-events:none}
.title-beams i{position:absolute;top:0;bottom:0;width:12%;border-left:1px solid #acecff33;background:linear-gradient(90deg,#75cfff03,#75cfff09 99%,#75cfff1a);transform:translateX(-50%)}
.title-beams i:nth-child(1){left:30%}.title-beams i:nth-child(2){left:43%;border-color:#9fdfff4d}.title-beams i:nth-child(3){left:56%;border-color:#e4b4ff38;background:linear-gradient(90deg,#d0a3ff03,#b6a3ff09 99%,#cca8ff16)}.title-beams i:nth-child(4){left:69%}
.title-content{position:relative;text-align:center;width:min(100% - 40px,650px);padding-block:30px}
.title-overline{display:block;font:11px var(--mono);letter-spacing:.4em;color:#86aec9;margin-bottom:24px;padding-left:.4em}
.title-content h1{margin:0;line-height:1.05;font-weight:900;letter-spacing:-.08em;color:#effaff}
.title-content h1 span{display:block}.title-content h1 span:first-child{font-size:clamp(90px,12vw,155px);font-style:italic;transform:translateX(-.045em);text-shadow:-2px 0 #8ee4ff,3px 2px #b5a5ff55,0 0 60px #8acfff24}
.title-content h1 span:last-child{font-size:clamp(44px,6.6vw,74px);margin-top:12px;letter-spacing:.02em}
.title-mode{font-size:11px;letter-spacing:.12em;color:#8aabc5;margin:25px 0 0}
.title-actions{display:flex;flex-direction:column;align-items:center;gap:12px;margin-top:48px}.title-actions .start-button{min-width:254px;min-height:58px;letter-spacing:.04em}
.title-settings{background:none;border:0;color:#91acc8;font-size:12px;min-height:38px;padding:8px 24px;cursor:pointer}.title-settings:hover{color:white}
#results>.title-settings{display:block;margin:13px auto -11px}#game:focus{outline:none}
@media(max-width:600px){.hud-center{right:82px}.hud:has(#stop:not([hidden])) .hud-center{right:116px}.title-content{width:calc(100% - 36px)}.title-overline{font-size:9px;margin-bottom:22px}.title-content h1 span:first-child{font-size:111px}.title-content h1 span:last-child{font-size:52px}.title-mode{font-size:10px}.title-actions{margin-top:40px}.title-actions .start-button{min-width:236px;min-height:55px}}
@media(max-height:520px){.title-content{padding-block:14px}.title-overline{margin-bottom:8px;font-size:8px}.title-content h1 span:first-child{font-size:65px}.title-content h1 span:last-child{font-size:36px;margin-top:5px}.title-mode{font-size:9px;margin-top:13px}.title-actions{margin-top:22px;gap:3px}.title-actions .start-button{min-height:42px;min-width:220px}.title-settings{min-height:30px}}

.speed-setting{padding:18px 0 14px;border-bottom:1px solid var(--line)}.speed-setting>div{display:flex;justify-content:space-between;align-items:center;gap:18px;font-size:14px;color:#d2e6f9}.speed-setting output{font:13px var(--mono);color:#c7eeff;font-variant-numeric:tabular-nums}.speed-setting input{display:block;width:100%;height:22px;accent-color:#a4e9ff;margin:13px 0 8px;cursor:pointer}.speed-setting p{font-size:10px;color:#8baaca;line-height:1.4;margin:0;min-height:0}

.pitch-feedback{position:absolute;left:16px;top:7px;font-size:10px;color:#8fa6bd}.pitch-feedback[data-match="true"]{color:#f2d66d}.chart-settings{padding-top:20px}.chart-settings>span{font-size:11px;color:#8baaca;display:block}.chart-settings>strong{display:block;font-size:14px;margin:7px 0 15px;overflow-wrap:anywhere}.chart-settings>div{display:flex;gap:10px;flex-wrap:wrap}.chart-settings button,.file-button{display:inline-block;border:1px solid #7598bf70;background:#172d46;border-radius:4px;padding:9px 12px;color:#d2e6f9;font-size:11px;cursor:pointer}.chart-settings:has(input:focus-visible) .file-button{outline:2px solid white}.chart-settings p{margin:10px 0;font-size:11px;min-height:0}.chart-settings a{font-size:11px;color:#a4dcff;display:inline-block;padding-block:7px}.chart-settings a:focus-visible{outline:2px solid white;outline-offset:3px}
:root{--pitch-height:clamp(150px,26svh,220px)}
@media(max-width:600px){:root{--pitch-height:clamp(150px,25svh,210px)}}
@media(max-height:500px){:root{--pitch-height:clamp(100px,28svh,130px)}}