:root{color-scheme:dark;--ink:#0a131b;--mint:#a6f3ce;--muted:#80959b}*{box-sizing:border-box}body{margin:0;background:#0a131b;color:#eff5f0;font-family:system-ui,-apple-system,sans-serif;overscroll-behavior:none}main{width:min(100%,1080px);margin:auto;padding:0 24px}header{height:88px;display:flex;align-items:center;gap:28px}.logo{font-size:28px;font-weight:900;letter-spacing:5px;color:inherit;text-decoration:none;white-space:nowrap}.logo span{font-size:10px;letter-spacing:3px;margin-left:12px;color:var(--mint)}.edition{font-size:10px;letter-spacing:2px;color:var(--mint)}.edition span{display:block;color:var(--muted);font-size:10px;letter-spacing:1px;margin-top:5px}button{font:inherit;color:inherit;cursor:pointer;-webkit-tap-highlight-color:transparent}#pause{margin-left:auto;padding:10px 14px;border:1px solid #30414a;border-radius:6px;background:transparent;font-size:11px}.arena{position:relative;aspect-ratio:16/9;overflow:hidden;border:1px solid #34454b;border-radius:10px;background:#13252c}canvas{width:100%;height:100%;display:block}.hud{position:absolute;top:6%;left:4%;right:4%;display:flex;gap:24px;align-items:flex-start;pointer-events:none}.fighter-name{flex:1;font-weight:800;font-size:18px;letter-spacing:2px}.fighter-name small{font-size:9px;letter-spacing:1px;color:#bfd1cc;display:block;margin:4px 0 9px}.enemy{text-align:right}.health{height:12px;border:1px solid #bfd1cc44;background:#14232b;padding:2px}.health i{display:block;height:100%;width:100%;background:var(--mint);transition:width .12s}.enemy .health i{background:#f9b987;margin-left:auto}.clock{min-width:55px;text-align:center}.clock b{font-size:36px;line-height:1}.clock span{display:block;font-size:7px;letter-spacing:1px;margin-top:8px}#overlay{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;flex-direction:column;background:#091921b8;backdrop-filter:blur(3px)}#overlay.hidden{display:none}.tag{color:var(--mint);letter-spacing:4px;font-size:10px}h1{font-size:clamp(20px,4vw,42px);letter-spacing:3px;margin:18px 0 0}#subtitle{font-size:12px;color:#b1c3c6;margin:16px 0 26px}#start{background:var(--mint);border:0;border-radius:4px;color:#122d29;font-weight:800;padding:15px 24px;font-size:13px;min-width:215px}#start span{margin-left:32px}#overlay small{font-size:9px;color:#8ea6ad;margin-top:18px}.stage-label{position:absolute;bottom:4%;left:4%;font-size:9px;letter-spacing:2px;color:#c1d0ce;pointer-events:none}.stage-label span{color:#738e96;margin-left:12px}.controls{display:flex;align-items:center;gap:20px;padding:20px 0;user-select:none;-webkit-user-select:none;touch-action:none}.dpad{display:grid;grid-template:repeat(3,44px)/repeat(3,52px);gap:4px}.controls button{background:#1a2b34;border:1px solid #3b4d56;border-bottom-width:3px;border-radius:9px;touch-action:none;user-select:none;-webkit-user-select:none}.controls button.pressed{background:#4b796e;border-color:var(--mint);transform:translateY(2px)}.up{grid-area:1/2}.left{grid-area:2/1}.right{grid-area:2/3}.down{grid-area:3/2}.dcenter{grid-area:2/2;align-self:center;text-align:center;color:#42616a}.control-hint{color:#91a5ab;font-size:9px;letter-spacing:1px}.control-hint span{display:block;margin-top:7px;font-size:9px;color:#577079}.attacks{margin-left:auto;display:flex;gap:12px;align-items:center}.attacks button{height:68px;width:68px;font-size:22px;font-weight:700;border-radius:50%}.attacks button span{display:block;font-size:9px;font-weight:500;letter-spacing:1px;margin-top:3px;color:#a2b4b8}.attacks .special{background:#214a42;border-color:#638f7e;color:var(--mint);height:80px;width:80px}.attacks .guard{margin-right:10px;background:transparent;font-size:18px}footer{border-top:1px solid #263740;padding:15px 0;color:#7d939b;display:flex;justify-content:space-between;gap:8px;font-size:10px}footer b{color:#bbcfcf;font-weight:500}button:focus-visible{outline:2px solid var(--mint);outline-offset:3px}@media(max-width:600px){main{padding:0 10px}header{height:66px;gap:12px}.logo{font-size:22px}.logo span{display:none}.edition{font-size:8px;letter-spacing:1px}.edition span{font-size:8px}#pause{padding:9px;font-size:10px}.hud{gap:12px}.fighter-name{font-size:12px}.fighter-name small{font-size:7px;margin:2px 0 4px}.health{height:8px}.clock b{font-size:24px}.clock span{font-size:6px;margin-top:3px}.tag{font-size:7px}h1{margin-top:9px;letter-spacing:1px}#subtitle{font-size:9px;margin:8px 0 12px}#start{padding:10px;font-size:11px}#overlay small{margin-top:9px;font-size:7px}.stage-label{font-size:6px}.stage-label span{display:none}.controls{gap:4px;padding:20px 0}.dpad{grid-template:repeat(3,44px)/repeat(3,44px);gap:2px}.control-hint{display:none}.attacks{gap:5px;display:grid;grid-template-columns:repeat(2,60px)}.attacks button,.attacks .special{width:58px;height:58px;font-size:19px}.attacks .guard{margin:0}footer{flex-direction:column;line-height:1.8;font-size:9px}}@media(orientation:landscape) and (max-height:600px){main{width:100%;padding:0 12px}header{height:42px}.edition span,footer,.control-hint{display:none}.logo{font-size:20px}.arena{height:calc(100svh - 50px);width:auto;aspect-ratio:16/9;margin:auto;max-width:100%}.controls{position:fixed;inset:auto 24px 14px;z-index:2;padding:0;pointer-events:none}.controls button{pointer-events:auto;opacity:.8}.dpad{grid-template:repeat(3,42px)/repeat(3,44px)}.attacks{display:flex;gap:8px}.attacks button,.attacks .special{height:54px;width:54px}.attacks .guard{margin:0}}

.move-guide{margin:0 0 16px;color:#a4b9bd;font-size:11px;line-height:1.8}.controls .special{position:relative}@media(orientation:landscape) and (max-height:600px){.move-guide{display:none}}

.enemy-picker{padding-top:12px}.enemy-options{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:8px}.enemy-options button{min-height:44px;border:1px solid #42565c;border-radius:6px;background:#172930;font-size:12px}.enemy-options button[aria-pressed="true"]{border-color:var(--mint);color:var(--mint);background:#23473e}.enemy-options button:disabled{opacity:.5;cursor:default}#enemyNote{font-size:11px;color:#a4b9bd}@media(max-width:600px){.enemy-options{gap:4px}.enemy-options button{font-size:10px}}
@media(orientation:landscape) and (max-height:600px){.enemy-picker{position:absolute;top:46px;left:50%;transform:translateX(-50%);z-index:3;width:min(470px,65%);padding:5px;background:#0a131bef;border-radius:6px}body:has(#overlay.hidden) .enemy-picker,body:has(#pause[aria-label="再開"]) .enemy-picker{display:none}#enemyNote{font-size:9px}.enemy-options{margin-top:4px}.enemy-options button{font-size:10px}}

.enemy-group{font-size:10px;color:#a6b9bf;margin:8px 0 0}.enemy-options{margin-top:4px}.boss-options button{border-color:#806c54}.enemy.boss .health{outline:1px solid #c1a475;outline-offset:2px}.enemy.phase-two .health{box-shadow:0 0 12px #f6dba688}#enemyBio{font-size:11px;color:#aabdc1;line-height:1.55;margin:8px 0 0;min-height:0}
body:has(#overlay.hidden) .enemy-picker,body:has(#pause[aria-label="再開"]) .enemy-picker{display:none}
body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) .controls{display:none}
@media(orientation:landscape) and (max-height:600px){.enemy-picker{top:45px;width:min(580px,88%)}.enemy-group{margin-top:3px;font-size:9px}#enemyBio{font-size:10px;margin:4px 0}body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) #overlay{justify-content:flex-end;padding-bottom:12px}body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) #overlay h1,body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) #overlay #subtitle,body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) #overlay .tag,body:not(:has(#overlay.hidden)):not(:has(#pause[aria-label="再開"])) #overlay small{display:none}}

[hidden]{display:none!important}#modeMenu{display:flex;gap:12px;margin-top:8px}#modeMenu button{min-height:60px;min-width:180px;padding:12px 20px;border:1px solid #71978a;border-radius:6px;background:#23473e;font-weight:700}#modeMenu button span{display:block;font-size:10px;font-weight:400;margin-top:5px;color:#b8cec5}#home{min-height:44px;padding:8px 18px;margin-top:9px;border:1px solid #637f82;border-radius:5px;background:#172b33;font-size:11px}#start:disabled{opacity:.6;cursor:default}#subtitle{max-width:88%;text-align:center;line-height:1.7}main[data-mode="title"] .stage-label{display:none}
@media(max-width:600px){#modeMenu{gap:7px}#modeMenu button{min-width:0;min-height:54px;padding:8px 14px;font-size:12px}#modeMenu button span{font-size:8px}#home{margin-top:5px;font-size:10px}main[data-mode="arcade"] #overlay h1{font-size:22px}main[data-mode="arcade"] #subtitle{margin:5px 0 8px}}
@media(orientation:landscape) and (max-height:600px){main:not([data-mode="practice"]) #overlay{justify-content:center!important;padding-bottom:0!important}main:not([data-mode="practice"]) #overlay h1,main:not([data-mode="practice"]) #overlay #subtitle,main:not([data-mode="practice"]) #overlay .tag{display:block!important}main[data-mode="practice"][data-state="ready"] #home,main[data-mode="practice"][data-state="over"] #home{position:fixed;bottom:9px;right:10px;min-height:44px;margin:0;padding:6px 9px}main[data-mode="practice"] #overlay #start{min-width:190px;padding:12px}}
@media(max-width:600px){main:not([data-mode="title"]):not([data-state="playing"]) #overlay .tag{display:none!important}main:not([data-mode="title"]):not([data-state="playing"]) #overlay h1{margin-top:0}}

@media(max-width:600px){#overlayHelp{display:none}}

/* Touch surfaces keep independent pointer capture without browser gestures. */
.controls,.arena{-webkit-touch-callout:none;-webkit-user-select:none;user-select:none;touch-action:none}button{touch-action:manipulation}
#mute{margin-left:auto;min-height:44px;min-width:48px;border:1px solid #42565c;border-radius:6px;background:#172930;font-size:10px}#pause{margin-left:0;min-height:44px}
.controls button.pressed{box-shadow:0 0 0 2px #a6f3ce,inset 0 0 12px #a6f3ce44;opacity:1}
#overlay[data-result]:not([data-result=""])::before{content:attr(data-result);color:#ffcf98;font-weight:900;letter-spacing:4px;font-size:22px;margin-bottom:4px}
#overlay[data-result]:not([data-result=""]) .tag{display:none!important}
@media(max-width:600px){header{gap:7px}.edition{letter-spacing:0;font-size:7px}.edition span{display:none}#overlay[data-result]:not([data-result=""])::before{font-size:12px;margin:0}#overlay[data-result]:not([data-result=""]) h1{font-size:20px;margin-top:0}}
@media(orientation:landscape) and (max-height:600px){.controls{left:max(22px,env(safe-area-inset-left));right:max(22px,env(safe-area-inset-right));bottom:max(14px,env(safe-area-inset-bottom))}.dpad{grid-template:repeat(3,46px)/repeat(3,48px)}.attacks button,.attacks .special{width:58px;height:58px}header{padding-left:env(safe-area-inset-left);padding-right:env(safe-area-inset-right)}main[data-mode="practice"] #overlay[data-result]:not([data-result=""])::before{position:absolute;top:55%;font-size:20px}}

/* Version 1.0: menus can scroll; battle keeps its existing canvas size. */
#titleOptions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:10px;padding:14px 0;font-size:12px}#difficulty,#helpButton,#helpBack{min-height:44px;padding:10px 14px;border:1px solid #638879;border-radius:6px;background:#18342e;color:#eff5f0;font:inherit}#helpPanel{max-width:720px;margin:0 auto 24px;font-size:13px;line-height:1.7}#helpPanel h1{font-size:25px}#helpPanel table{width:100%;border-collapse:collapse}#helpPanel th,#helpPanel td{padding:8px 5px;border-bottom:1px solid #38504d;text-align:left}#helpPanel th{color:#a6f3ce}main[data-mode="help"] .arena,main[data-mode="help"] footer,main[data-mode="help"] .move-guide{display:none}
@media(orientation:landscape) and (max-height:600px){main[data-mode="title"] .arena{height:calc(100svh - 114px)}#titleOptions{padding:6px 0}#helpPanel{font-size:12px}#helpPanel th,#helpPanel td{padding:5px}}
@media(max-width:600px){#helpPanel{font-size:11px}#titleOptions{gap:7px;font-size:11px}}