*{box-sizing:border-box}body{margin:0;background:#080b16;color:#ecf3ff;font:15px 'Segoe UI',Arial,sans-serif;min-height:100vh;background-image:radial-gradient(ellipse at 78% 45%,#19204488,transparent 54%)}header,footer{display:flex;align-items:center;justify-content:space-between;padding:26px 5%;border-bottom:1px solid #ffffff12}.brand{color:inherit;text-decoration:none;letter-spacing:3px;font-weight:800;font-size:19px}.brand span{color:#55e7ff}.tag,.private,footer{font-size:11px;letter-spacing:1.5px;color:#818ea7}.private{color:#91d8c6}main{max-width:1440px;margin:auto;min-height:calc(100vh - 145px);padding:65px 5% 35px;display:grid;grid-template-columns:1.15fr 1fr;gap:35px;align-items:center}h1{font-size:clamp(32px,3.6vw,55px);font-weight:650;letter-spacing:-2px;line-height:1.12;margin:25px 0}em{font-style:normal;color:#6ae9f5}.eyebrow{font-size:11px;letter-spacing:3px;color:#9eabca}.lead{color:#98a7c2;line-height:1.8}.load{display:flex;gap:15px;align-items:center;margin-top:30px}.load span,#status,.track-meta{font-size:12px;color:#8092ae}.button,button{border:0;border-radius:7px;padding:15px 23px;background:#67edee;color:#07141d;font:600 14px 'Segoe UI';cursor:pointer;display:inline-block;transition:filter .2s}.button:hover,button:hover{filter:brightness(1.16)}input[type=file]{position:absolute;width:1px;height:1px;opacity:0}input:focus+label,button:focus-visible{outline:3px solid white}#ready{border:1px solid #25364d;background:#111b2c;padding:17px;border-radius:10px;margin:20px 0}#filename{overflow-wrap:anywhere}#wave{height:32px;display:flex;gap:2px;align-items:center;margin:12px 0}#wave i{flex:1;background:#55d5e7;min-height:2px;border-radius:2px}.rules{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:42px;padding-top:24px;border-top:1px solid #ffffff15}.rules b{font-size:10px;letter-spacing:1px;color:#aabbd7}.rules p{font-size:12px;line-height:1.8;color:#6f839f}.orbital{position:relative;aspect-ratio:1;max-width:480px;margin:auto}.orbit{position:absolute;border-radius:50%;inset:7%;border:2px solid #55cafa;box-shadow:0 0 20px #37c9ff35,inset 0 0 20px #37c9ff15}.o2{inset:12%;border:1px solid #765de638;box-shadow:none}.o3{inset:28%;border:1px dashed #536e7c35;box-shadow:none}.center-orb{position:absolute;inset:44%;background:#bafaff;border-radius:50%;box-shadow:0 0 40px #5cdfff88,0 0 100px #5cdfff33}.spark{position:absolute;width:19px;height:19px;background:#58e6ff;box-shadow:0 0 20px #58e6ff77;transform:rotate(30deg)}.s1{left:24%;top:28%}.s2{left:66%;top:38%;width:11px;height:11px}.s3{left:59%;top:76%;background:#ffd45a}.legend{display:flex;flex-wrap:wrap;justify-content:center;gap:18px;font-size:11px;max-width:470px;margin:auto}.energy{color:#36f3ef}.combo{color:#b77aff}.shield{color:#4dff9a}.core{color:#ffd45a}.hazard{color:#ff384b}footer{border-top:1px solid #ffffff12;border-bottom:0;padding:18px 5%;letter-spacing:1px}body.playing main{display:block;padding:18px 4%;max-width:1100px}body.playing aside,body.playing footer{display:none}.hud{display:flex;justify-content:space-between;padding:12px 20px;border:1px solid #263147;border-radius:10px;background:#0e1423}.hud small{font-size:9px;color:#8295b6;letter-spacing:1.5px;display:block;margin-bottom:6px}.hud strong{font-size:23px;font-weight:500}#game{height:min(70vh,700px);width:100%;cursor:crosshair}#game canvas{display:block}.timeline{height:3px;background:#1d293d}.timeline i{height:100%;width:0;display:block;background:#66e7ff}.play-footer{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:#91a5c0;margin-top:12px}.play-footer button{padding:8px 15px;background:#202d41;color:#b5c3da}#total{font-size:80px;color:#6ae9f5;font-weight:650;letter-spacing:-3px}.result-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:25px 0}.result-grid div{background:#111a2b;padding:20px;border-radius:8px}.result-grid b{font-size:25px;display:block}.result-grid small{color:#889bbb}.secondary{margin-left:10px;background:#233249;color:#c7d7ec}#best{color:#a99cdb;font-size:13px}[hidden]{display:none!important}@media(max-width:800px){main{grid-template-columns:1fr;padding-top:30px}aside{display:none}.private{display:none}.tag{font-size:9px}.load{align-items:flex-start;flex-direction:column}.hud{padding:10px}.hud strong{font-size:18px}.hud small{font-size:7px}#hint{max-width:55%;text-align:center}.rules{gap:10px}header{padding:20px 5%}}

/* Fit the square logical arena into the space left by readable controls. */
.screen-controls{display:flex;align-items:center;gap:8px}.screen-controls button{padding:9px 13px;margin:0;white-space:nowrap;font-size:12px;border:1px solid #3c516b;background:#17283c;color:#d5efff}
#screen-status{font-size:11px;color:#ffc486;max-width:180px}button:disabled{opacity:.45;cursor:default}
body.playing{height:100dvh;min-height:0;overflow:hidden}body.playing header{height:62px;padding:10px 4%;gap:12px}body.playing main{height:calc(100dvh - 62px);min-height:0;max-width:1440px;padding:10px 4% 12px}
#play{height:100%;display:flex;flex-direction:column;min-height:0}.hud{flex:none;gap:12px}.hud strong{font-variant-numeric:tabular-nums}.hud #combo{color:#b77aff}.hud #shield{color:#4dff9a}.hud #od{color:#ffd45a}
#game{flex:1;min-height:0;height:auto;position:relative;overflow:hidden}#game canvas{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);margin:0!important}.timeline,.play-footer{flex:none}.play-footer{gap:10px;min-height:34px}.play-footer #time{white-space:nowrap}
:fullscreen{background:#080b16}button:focus-visible{outline-offset:3px}
@media(max-width:1050px){header .private{display:none}}
@media(max-width:650px){header{gap:12px;flex-wrap:wrap}.tag{display:none}.brand{font-size:14px;letter-spacing:1px}.screen-controls button{font-size:11px;padding:8px}.hud{gap:5px;padding:9px 8px}.hud small{letter-spacing:.4px;font-size:7px}.hud strong{font-size:16px}body.playing main{padding:6px 2% 8px}.play-footer{font-size:10px}.play-footer button{font-size:11px;padding:8px}.screen-controls{margin-left:auto}#screen-status:empty{display:none}}
@media(max-height:620px){body.playing header{height:46px}body.playing main{height:calc(100dvh - 46px);padding-top:5px}.hud{padding:6px 10px}.hud small{margin-bottom:3px}.hud strong{font-size:18px}.play-footer{margin-top:5px}}

/* v0.3.1: fullscreen owns only the arena, its HUD and the result screen. */
#arena-shell{min-width:0}body.playing #arena-shell{height:100%;min-height:0}
#arena-shell:fullscreen{display:flex;flex-direction:column;width:100vw;height:100dvh;max-width:none;padding:8px 12px;background:#070c17;overflow:hidden}
#arena-shell:fullscreen #play{flex:1;min-height:0}
#arena-shell:fullscreen .hud{padding:8px 20px}#arena-shell:fullscreen .play-footer{margin-top:6px}
#exit-screen{display:none}#arena-shell:fullscreen #exit-screen{display:inline-block}
.hud{align-items:center;gap:14px;transition:background .25s,border-color .25s,box-shadow .25s}
.hud .effective-multiplier{padding:0 18px;border-left:1px solid #314660;border-right:1px solid #314660;min-width:160px}
.hud #multiplier{font-size:34px;line-height:1;color:#a8ffff;font-weight:750;text-shadow:0 0 18px #42eaff50}
.overdrive-active .hud{background:linear-gradient(100deg,#292113ee,#161524f5 75%);border-color:#ffce59;box-shadow:0 0 25px #ffc94d25,inset 0 0 30px #ffc94d0a}
.overdrive-active .hud #multiplier,.overdrive-active #multiplier-caption{color:#ffe083}.overdrive-active .hud #multiplier{text-shadow:0 0 24px #ffc94d90}.overdrive-active .timeline i{background:#ffdc6b;box-shadow:0 0 12px #ffce59}
.play-footer #hint{flex:1;text-align:center}.play-footer .screen-controls{flex:none}.play-footer button{white-space:nowrap}
.collection-label{font-size:11px;letter-spacing:1.6px;color:#91a5c0;margin-top:26px}#collection-result{font-size:clamp(24px,3vw,36px);font-weight:650;color:#b2fcf5;font-variant-numeric:tabular-nums}
@media(max-width:900px){.hud{gap:8px;padding:8px 10px}.hud .effective-multiplier{padding:0 10px;min-width:110px}.hud #multiplier{font-size:27px}.hud small{letter-spacing:.4px}.hud strong{font-size:18px}.screen-controls #screen-status:not(:empty){position:absolute;bottom:50px;right:20px;padding:8px;background:#152037}}
@media(max-width:650px){.hud{gap:6px;flex-wrap:wrap}.hud .effective-multiplier{min-width:85px}.hud small{font-size:8px}.hud strong{font-size:16px}.hud #multiplier{font-size:25px}.play-footer{flex-wrap:wrap}.play-footer #hint{order:4;flex-basis:100%;max-width:none}#arena-shell:fullscreen{padding:6px}.play-footer .screen-controls{margin-left:auto}.play-footer .screen-controls button{font-size:10px}.result-grid{gap:6px}.result-grid div{padding:12px}}

/* Atmosphere is masked outside the live arena, including the wide side margins. */
#game{background:radial-gradient(ellipse at center,#0c1728 0%,#080e1a 50%,#070b15 100%)}
#ambient{--arena-px:300px;--ambient-rgb:50,150,255;--ambient-power:.4;position:absolute;inset:0;overflow:hidden;pointer-events:none;background:radial-gradient(ellipse at 50% 50%,rgba(var(--ambient-rgb),.19),rgba(var(--ambient-rgb),.045) 65%,transparent 95%);opacity:var(--ambient-power);mask-image:radial-gradient(circle at center,transparent calc(var(--arena-px) + 22px),#000 calc(var(--arena-px) + 42px))}
#ambient i{position:absolute;width:var(--size);height:var(--size);border-radius:50%;background:#a6d9ee;opacity:var(--alpha);box-shadow:0 0 8px rgba(var(--ambient-rgb),.5);animation:outer-drift 18s ease-in-out infinite alternate}
#ambient::before,#ambient::after{content:"";position:absolute;left:50%;top:50%;width:calc(var(--arena-px)*2 + 120px);height:calc(var(--arena-px)*2 + 120px);border:1px solid rgba(var(--ambient-rgb),.17);border-radius:50%;animation:outer-wave 8s ease-out infinite}
#ambient::after{animation-delay:-4s}
@keyframes outer-drift{from{transform:translate(-7px,5px)}to{transform:translate(10px,-8px)}}
@keyframes outer-wave{from{transform:translate(-50%,-50%) scale(1);opacity:.65}to{transform:translate(-50%,-50%) scale(1.25);opacity:0}}
@media(prefers-reduced-motion:reduce){#ambient i,#ambient::before,#ambient::after{animation:none}}
/* Results remain over the frozen arena, in normal mode and in fullscreen. */
#arena-shell{position:relative}
#arena-shell #result,#arena-shell:fullscreen #result{position:absolute;inset:0;width:100%;height:100%;margin:0;padding:16px;display:grid;place-items:center;z-index:10;overflow:auto;background:#03081366;backdrop-filter:blur(1px)}
.result-card{width:min(460px,100%);max-height:100%;overflow:auto;border:1px solid #597a9366;border-radius:18px;padding:26px;background:linear-gradient(145deg,#14253bf5,#0b1424f7);box-shadow:0 24px 80px #0009,0 0 45px #56dfff12;text-align:center}
.result-card .eyebrow{font-size:9px;letter-spacing:2px}.result-card h1{font-size:30px;letter-spacing:-1px;margin:14px 0 8px}.result-card #total{font-size:58px;line-height:1.12}.result-card .lead{font-size:12px;line-height:1.5;margin:10px 0;overflow-wrap:anywhere}.result-card .collection-label{margin-top:18px;font-size:9px;letter-spacing:1px}.result-card #collection-result{font-size:27px}
.result-card .result-grid{margin:16px 0;gap:8px}.result-card .result-grid div{padding:12px 5px;background:#0b1325b0}.result-card .result-grid b{font-size:21px}.result-card .result-grid small{font-size:10px}.result-card #best{font-size:10px;line-height:1.6;margin:12px 0 18px}.result-card button{font-size:12px;padding:12px 16px}.result-card #exit-screen{margin:14px auto 0;padding:7px 12px;background:transparent;color:#90a7bf}
#arena-shell:fullscreen .result-card #exit-screen{display:block}
@media(max-height:620px){.result-card{padding:16px 22px}.result-card h1{font-size:25px;margin:8px 0}.result-card #total{font-size:42px}.result-card .result-grid{margin:10px 0}.result-card #best{margin:8px 0 12px}.result-card .collection-label{margin-top:10px}}

@media(max-height:620px){#arena-shell #result,#arena-shell:fullscreen #result{align-items:end}.result-card{width:min(420px,100%);padding:14px 22px}.result-card #total{font-size:36px}.result-card .result-grid{display:block;margin:8px 0}.result-card .result-grid>div:not(:last-child){display:none}.result-card .result-grid>div:last-child{display:inline-flex;align-items:baseline;gap:6px;padding:5px 14px}.result-card .result-grid b{font-size:16px}.result-card button{padding:10px 14px}}

/* v0.3.3: independent corner instruments leave the arena unobstructed. */
#play .hud{position:absolute;inset:0;z-index:2;display:block;padding:0;border:0;border-radius:0;background:none;box-shadow:none;pointer-events:none}
#play .hud>div{position:absolute;padding:12px 16px;text-shadow:0 2px 8px #000;max-width:220px}
#hud-score{bottom:0;left:0;background:linear-gradient(35deg,#080e1adb,transparent)}
#hud-streak{bottom:0;right:0;text-align:right;background:linear-gradient(-35deg,#080e1adb,transparent)}
#hud-intensity{top:0;right:0;text-align:right}#hud-power{top:0;left:0;border:1px solid transparent;border-radius:12px;transition:background .25s,border-color .25s,box-shadow .25s}
#play .hud small{font-size:9px;letter-spacing:1px;margin:0 0 4px;color:#a7bbd2}#play .hud strong{font-size:26px;font-weight:600;line-height:1.15}#play .hud #streak{font-size:42px;color:#e6fbff}
#play .hud .effective-multiplier{display:flex;align-items:center;gap:9px;padding:0;margin:7px 0 3px;border:0;min-width:0}#play .hud #multiplier{font-size:32px}#play .hud #multiplier-caption{font-size:8px;max-width:84px;margin:0}#play .hud #combo{font-size:10px;color:#be9bed}
.shield-status{margin-top:10px;color:#7b90a8;font-size:9px;letter-spacing:1px}.shield-status span{font-size:12px;margin-left:5px}
#play .hud #od{font-size:20px}#overdrive-track{height:3px;border-radius:3px;background:#604e2a;margin-top:9px;overflow:hidden}#overdrive-fill{display:block;height:100%;background:#ffe08a;box-shadow:0 0 10px #ffd45a}
#play.overdrive-active #hud-power{background:#392a18df;border-color:#eeb94b;box-shadow:0 0 24px #ffcc4930}#play.overdrive-active .hud #multiplier-caption{color:#ffe083}
#ambient{--parallax-x:0px;--parallax-y:0px}
#ambient i{animation:outer-drift var(--drift-duration,22s) ease-in-out infinite alternate,outer-twinkle var(--twinkle-duration,5s) ease-in-out infinite alternate}
@keyframes outer-drift{from{transform:translate(calc(-7px + var(--parallax-x)*var(--depth,1)),calc(5px + var(--parallax-y)*var(--depth,1)))}to{transform:translate(calc(10px + var(--parallax-x)*var(--depth,1)),calc(-8px + var(--parallax-y)*var(--depth,1)))}}
@keyframes outer-twinkle{from{opacity:calc(var(--alpha)*.35)}to{opacity:var(--alpha)}}
@media(max-width:650px),(max-height:520px){#play .hud>div{padding:8px;max-width:155px}#play .hud small{font-size:7px;letter-spacing:.4px}#play .hud strong{font-size:20px}#play .hud #streak{font-size:30px}#play .hud #multiplier{font-size:25px}#play .hud #multiplier-caption{font-size:7px;max-width:65px}#play .hud #od{font-size:16px}.shield-status{margin-top:6px}}
@media(prefers-reduced-motion:reduce){#ambient i,#ambient::before,#ambient::after{animation:none}}

/* F2-only diagnostics; fixed overlay never resizes the game or its HUD. */
#audio-debug{position:fixed;right:12px;top:160px;bottom:165px;width:min(370px,calc(100vw - 24px));z-index:30;display:flex;flex-direction:column;background:#0a1227f2;border:1px solid #6183a5;border-radius:10px;box-shadow:0 12px 40px #0009;color:#ccdef2;font:11px 'Segoe UI',sans-serif;cursor:default;min-height:100px}
#audio-debug header,#audio-debug footer{padding:8px 10px;display:flex;gap:8px;border-color:#ffffff20;flex:none}#audio-debug header b{color:#7bf6ff;font-size:11px;letter-spacing:1px}#audio-debug button{padding:5px 8px;font-size:10px;background:#263d59;color:#e2f5ff;margin:0}
#audio-debug p{margin:0;padding:4px 10px;font-size:10px;line-height:1.35}#audio-debug .debug-help{color:#899bb7}#audio-debug .debug-scroll{overflow:auto;padding:0 10px 8px;flex:1;min-height:0;overscroll-behavior:contain}#audio-debug pre{font:10px/1.5 Consolas,monospace;white-space:pre-wrap;overflow-wrap:anywhere;margin:6px 0;color:#abc0dc}#audio-debug h3{font-size:11px;margin:12px 0 4px}
#audio-debug .debug-component{display:grid;grid-template-columns:minmax(100px,1fr) 34px 110px;align-items:center;gap:5px;min-height:29px;border-bottom:1px solid #ffffff08}#audio-debug .debug-component span{font-size:10px}#audio-debug .debug-component b{text-align:right;font-variant-numeric:tabular-nums;color:#b9f4fa;font-size:10px}#audio-debug .debug-component canvas{width:110px;height:24px}#audio-debug .debug-timeline canvas{display:block;width:100%;height:48px}#audio-debug small{font-size:9px;letter-spacing:0;color:#809ab7}#audio-debug footer{flex-wrap:wrap;justify-content:flex-start}#audio-debug details{margin-top:12px}#audio-debug summary{cursor:pointer;color:#9ad7f0}
#audio-debug.debug-live{pointer-events:none}#audio-debug.debug-live button{opacity:.6}
@media(max-height:520px){#audio-debug{top:115px;bottom:145px}#audio-debug .debug-help{display:none}}

/* Difficulty controls only; the arena visual baseline is unchanged. */
#difficulty-select{border:0;padding:0;margin:14px 0 18px;display:grid;grid-template-columns:repeat(3,1fr);gap:7px}#difficulty-select legend{color:#96aecb;font-size:11px;margin-bottom:8px}#difficulty-select label{position:relative;cursor:pointer}#difficulty-select input{position:absolute;opacity:0;width:1px;height:1px}#difficulty-select span{display:block;min-height:70px;padding:10px 9px;border:1px solid #35455d;border-radius:7px;background:#101b2d}#difficulty-select b{display:block;font-size:13px;color:#dae9fc}#difficulty-select small{display:block;margin-top:5px;color:#8ea4c0;font-size:10px;line-height:1.4}#difficulty-select input:checked+span{border-color:#67edee;background:#17343f}#difficulty-select input:focus-visible+span{outline:2px solid white;outline-offset:2px}
#difficulty-hud{display:block;color:#7c9bb5;font-size:9px;letter-spacing:1.5px;margin-bottom:8px}.best-streak-label{font-size:12px;color:#9aafc9;margin:8px 0}.best-streak-label b{color:#c4f7f8;font-variant-numeric:tabular-nums}

/* v0.4 product shell; gameplay instruments keep their existing positions. */
.site-header .brand{display:flex;align-items:center;gap:10px}.site-header .brand span{color:#ecf3ff}.menu-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:32px}.menu-actions .secondary{margin:0}.menu-actions #menu-play{min-width:170px}.text-button{background:transparent;color:#9fb6d2;padding:10px 4px;font-size:12px}.menu-note,.privacy-note{font-size:12px;line-height:1.7;color:#829bb4;margin-top:22px}.privacy-note{max-width:540px;color:#99c7c2}.quick-guide{border-top:1px solid #314158;margin:0 0 18px;padding-top:14px;color:#9fb2cb;font-size:12px;line-height:1.6}.quick-guide b{color:#d4eef6}.quick-guide p{margin:7px 0}.score-label{font-size:10px;letter-spacing:2px;color:#95b2c7}.result-card .result-support{display:block;margin:10px auto 0;padding:7px}.result-card #stats{display:none}.result-card #best{margin:10px 0 16px}.result-card{max-height:100%;overflow-y:auto}.result-card button{max-width:100%}.result-card h1{overflow-wrap:anywhere}#track-screen h1{font-size:clamp(28px,3vw,42px);margin:14px 0}#track-screen .load{margin-top:20px}#track-screen #ready{margin-bottom:0}#track-screen #prepare{margin-right:10px}
dialog{width:min(470px,calc(100vw - 28px));max-height:calc(100dvh - 28px);overflow:auto;background:#111e31;color:#e6f3ff;border:1px solid #425e79;border-radius:18px;padding:26px;box-shadow:0 24px 90px #000a;font-size:14px}dialog::backdrop{background:#030814ba;backdrop-filter:blur(3px)}dialog h2{font-size:25px;margin:0 0 20px;letter-spacing:-.5px}dialog p{line-height:1.7;color:#a5bad1}.dialog-heading{display:flex;justify-content:space-between;align-items:baseline;gap:16px}.setting{display:flex;justify-content:space-between;margin:20px 0 10px}.setting output{color:#7febec;font-variant-numeric:tabular-nums}dialog input[type=range]{width:100%;accent-color:#67edee}dialog select{width:100%;padding:12px;background:#0c1627;color:#d9edfc;border:1px solid #3c5470;border-radius:7px;font:inherit}.setting-note,#settings-status{font-size:12px}.checkbox-setting{display:flex;align-items:center;gap:10px;margin:22px 0 14px;line-height:1.5}.checkbox-setting input{accent-color:#67edee}#settings-fullscreen{margin:0;padding:10px 12px;font-size:12px}#support-dialog p{margin-bottom:18px}.support-dialog{width:min(620px,calc(100vw - 28px))}.support-goal{margin:20px 0;padding:16px;border:1px solid #34546b;border-radius:12px;background:linear-gradient(135deg,#102239,#0b1728)}.support-goal>div:first-child{display:flex;justify-content:space-between;gap:18px}.support-goal span{color:#a9f7f2;font-variant-numeric:tabular-nums}.support-goal-track{height:8px;margin-top:13px;border-radius:8px;background:#223449;overflow:hidden}.support-goal-track i{display:block;width:0;height:100%;background:linear-gradient(90deg,#43dfe9,#bb77ff);box-shadow:0 0 14px #58e7f0;transition:width .35s ease}.support-donate{display:block;text-align:center;text-decoration:none;margin:0 0 24px}.support-dialog h3{font-size:13px;letter-spacing:1.2px;text-transform:uppercase;color:#91adc4}.support-recent{display:grid;gap:8px;max-height:270px;overflow:auto}.support-recent article{padding:11px 13px;border:1px solid #273d54;border-radius:9px;background:#0b1626}.support-recent article div{display:flex;justify-content:space-between;gap:10px}.support-recent article strong{color:#7febec}.support-recent article p{margin:8px 0;color:#c8d9e8;line-height:1.45}.support-recent article small{color:#718ba5}.support-unavailable,.support-status,.support-mini-goal{color:#82a1b9;font-size:12px}.support-mini-goal{margin:10px 0 0}.support-status{min-height:18px;margin:10px 0 0!important}a:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid #a5ffff;outline-offset:4px}
.reduced-effects #ambient i:nth-child(n+41){display:none}.reduced-effects #ambient i{animation:none;box-shadow:none}.reduced-effects #ambient::before,.reduced-effects #ambient::after{display:none}.reduced-effects #ambient{opacity:.25}.reduced-effects .hud *{text-shadow:none!important;box-shadow:none!important}.reduced-effects #hud-power{box-shadow:none!important}.reduced-effects .orbit,.reduced-effects .center-orb,.reduced-effects .spark{box-shadow:none}.reduced-effects *{scroll-behavior:auto!important}
@media(max-height:800px){body:not(.playing) main{padding-top:30px;padding-bottom:25px}.site-header{padding-top:18px;padding-bottom:18px}#track-screen h1{margin:8px 0}#track-screen .lead{margin:6px 0}#track-screen .privacy-note{margin:12px 0}#track-screen #ready{margin-top:12px}}
@media(max-width:650px){.menu-actions{gap:8px}.menu-actions .text-button{flex-basis:100%;text-align:left}#difficulty-select span{padding:9px 6px;min-height:96px}#difficulty-select small{font-size:10px}.site-footer{gap:12px;font-size:10px}.result-card{padding:18px}.play-footer #hint{order:5}.play-footer{gap:6px}#play .hud>div{max-width:45%}.result-card #collection-result{font-size:23px}dialog{padding:20px}}
@media(max-height:620px){#arena-shell #result,#arena-shell:fullscreen #result{align-items:center}.result-card h1{font-size:23px}.result-card #best{margin:8px 0}.result-card .result-support{margin-top:5px}.result-card .collection-label{margin:10px 0}.result-card .lead{margin:6px 0}}

@media(min-width:801px) and (max-height:800px){body:not(.playing) main{padding-top:18px}#track-screen .load{margin-top:14px}#track-screen h1{font-size:32px}#track-screen #ready{padding:14px}#track-screen .quick-guide{font-size:11px;padding-top:10px;margin-bottom:12px}#track-screen #difficulty-select{margin:12px 0}#track-screen #status{margin:8px 0}#track-screen #prepare{padding:12px 20px}}

/* v0.5 local profile and achievements. */
.profile-transfer{border-top:1px solid #314158;margin-top:22px;padding-top:18px}.profile-transfer p{font-size:11px;margin:7px 0 12px}.profile-transfer button{margin:0 6px 6px 0;padding:9px 12px}.profile-transfer input[type=file]{position:absolute;width:1px;height:1px;opacity:0}.progress-dialog{width:min(720px,calc(100vw - 28px))}.achievements-dialog{width:min(940px,calc(100vw - 28px))}.profile-identity{display:flex;align-items:center;gap:16px;margin-bottom:22px}.profile-identity #profile-avatar{display:grid;place-items:center;width:66px;height:66px;border:1px solid #68e9f3;border-radius:50%;background:#102d3d;color:#caffff;font-size:31px;box-shadow:0 0 25px #4ae6ff26}.profile-identity strong{display:block;font-size:23px}.profile-identity small{display:block;color:#879db8;margin-top:5px}.profile-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:20px}.profile-stats div{background:#0b1527;border:1px solid #243951;border-radius:9px;padding:12px 8px}.profile-stats b{display:block;font-size:21px;color:#b9fbff}.profile-stats small{display:block;margin-top:4px;color:#8298b2;font-size:10px}.progress-dialog details{border-top:1px solid #314158;margin:10px 0 18px;padding-top:12px}.progress-dialog summary{cursor:pointer;color:#a9c9df}.progress-dialog input[type=text],#profile-nickname{width:100%;padding:11px;border-radius:7px;border:1px solid #3c5470;background:#0c1627;color:#e7f6ff;font:inherit}.progress-dialog #save-profile{margin-top:16px}.achievement-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:16px;max-height:min(62vh,650px);overflow:auto;padding-right:4px}.achievement-card{position:relative;min-height:142px;padding:15px;border:1px solid #2b3c55;border-radius:11px;background:linear-gradient(145deg,#0d182a,#0a1220);opacity:.72}.achievement-card.unlocked{opacity:1;border-color:#5deaf07a;box-shadow:inset 0 0 22px #46ddf00a}.achievement-card b{display:block;font-size:14px;color:#e9f6ff;margin:7px 0}.achievement-card p{font-size:11px;line-height:1.45;color:#8fa6bf;margin:0 0 12px}.achievement-tier{font-size:9px;text-transform:uppercase;letter-spacing:1.4px;color:#b88a61}.tier-silver .achievement-tier{color:#bdcce0}.tier-gold .achievement-tier{color:#ffd265}.tier-platinum .achievement-tier{color:#83f4ed}.tier-diamond .achievement-tier{color:#cf9cff}.achievement-progress{position:absolute;left:15px;right:15px;bottom:13px;display:grid;grid-template-columns:auto 1fr;gap:9px;align-items:center;font-size:10px;color:#9fb6cf}.achievement-progress i{height:4px;border-radius:4px;background:linear-gradient(90deg,#66eaf0 calc(var(--progress)*100%),#26364c 0)}#achievement-summary{font-size:12px;margin:4px 0;color:#8eb3c9}
#match-rewards{margin:12px 0;padding:10px;border-top:1px solid #47627a;border-bottom:1px solid #2c4058;text-align:left}#match-rewards h2{font-size:10px;letter-spacing:1.5px;text-transform:uppercase;color:#9ebbd0;margin:6px 0 8px}#new-achievement-list,#progress-updated-list{display:grid;gap:5px}#new-achievement-list>div,#progress-updated-list>div{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:7px;padding:7px 9px;border-radius:7px;background:#142840}#new-achievement-list>div{animation:achievement-pop .5s ease-out;box-shadow:0 0 20px #61eafa18}#new-achievement-list span{font-size:8px;letter-spacing:1px;color:#ffd66e}#new-achievement-list b,#progress-updated-list b{font-size:11px}#new-achievement-list small{grid-column:2/-1;font-size:9px;color:#9bb0c7}#progress-updated-list span{font-size:10px;color:#9ff7f2;font-variant-numeric:tabular-nums}@keyframes achievement-pop{from{transform:translateY(8px);opacity:0}to{transform:none;opacity:1}}
@media(max-width:650px){.profile-stats{grid-template-columns:repeat(2,1fr)}.achievement-grid{grid-template-columns:1fr}.achievement-card{min-height:130px}.progress-dialog{padding:16px}.result-card #match-rewards{margin:8px 0;padding:7px}.result-card #match-rewards h2{margin:4px 0}.result-card #new-achievement-list small{display:none}}
@media(max-height:620px){.result-card #progress-updated{display:none}.result-card #match-rewards{max-height:100px;overflow:auto}.result-card #new-achievement-list>div{padding:5px 7px}}
.global-result-status,.leaderboard-profile-summary{color:#8ecbd2;font-size:12px;line-height:1.55}.global-result-status.personal-best{color:#ffd45a;font-weight:700;text-shadow:0 0 14px #ffd45a88}.leaderboard-dialog{width:min(820px,94vw)}.leaderboard-head,.leaderboard-row{display:grid;grid-template-columns:52px minmax(110px,1fr) 110px 76px 70px;gap:8px;align-items:center}.leaderboard-head{padding:8px 12px;color:#7891ad;font-size:10px;text-transform:uppercase}.leaderboard-row{padding:11px 12px;border-top:1px solid #ffffff10}.leaderboard-row.current{background:#4be7e51a;box-shadow:inset 3px 0 #67edee}.leaderboard-row span:nth-child(n+3){text-align:right}.leaderboard-list{min-height:90px;max-height:54vh;overflow:auto}.leaderboard-controls{display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:14px}.leaderboard-controls .secondary{margin:0;padding:9px 13px}#leaderboard-me{color:#72ecec;font-weight:600}#leaderboard-dev{color:#a995d5;font-size:11px}@media(max-width:650px){.leaderboard-head,.leaderboard-row{grid-template-columns:38px minmax(90px,1fr) 82px 58px}.leaderboard-head span:last-child,.leaderboard-row span:last-child{display:none}.leaderboard-row{font-size:12px;padding:10px 5px}}
#new-achievement-list{max-height:180px;overflow:auto}

/* v0.5.1 progression medals and local-profile onboarding. */
.local-profile-note{display:flex;flex-direction:column;gap:3px;margin:-6px 0 18px;padding:11px 13px;border-left:2px solid #5bdde5;background:#0b1829;color:#b9dce7;font-size:11px}.local-profile-note span{color:#819bb5}#nickname-prompt{margin:10px 0 -6px;color:#78edf0;font-weight:650}
.network-status{margin:10px 0 0;color:#8d9db2;font-size:10px}.network-status.online{color:#78c9bd}
.account-actions{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin-top:18px}.account-actions span{font-size:12px;color:#92c8d0}.account-actions button{font-size:12px;padding:9px 13px}#auth-form input{width:100%;padding:11px;border:1px solid #3c5470;border-radius:7px;background:#0c1627;color:#e7f6ff;font:inherit}#auth-submit{margin-top:10px}#auth-error{color:#ffaeae;min-height:20px}#link-dialog button{display:block;width:100%;margin:8px 0}#link-dialog p,#auth-form p{font-size:12px;line-height:1.6}
.achievement-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.achievement-card{--medal:#986b45;--medal-soft:#523a2a;display:grid;grid-template-columns:62px 1fr;gap:12px;min-height:190px;padding:14px;opacity:1;border-color:color-mix(in srgb,var(--medal) 45%,#27384f);background:radial-gradient(circle at 24px 24px,color-mix(in srgb,var(--medal) 12%,transparent),transparent 45%),linear-gradient(145deg,#101c2f,#091321)}
.achievement-card.locked{filter:saturate(.55);opacity:.68}.achievement-card.unlocked{box-shadow:inset 0 0 24px color-mix(in srgb,var(--medal) 12%,transparent),0 0 16px color-mix(in srgb,var(--medal) 10%,transparent)}.achievement-card.completed{border-color:var(--medal);box-shadow:0 0 24px color-mix(in srgb,var(--medal) 25%,transparent),inset 0 0 24px color-mix(in srgb,var(--medal) 16%,transparent)}
.achievement-card.tier-silver{--medal:#b9c9df;--medal-soft:#536176}.achievement-card.tier-gold{--medal:#ffd263;--medal-soft:#765b22}.achievement-card.tier-platinum{--medal:#72eee4;--medal-soft:#256963}.achievement-card.tier-diamond{--medal:#cd9bff;--medal-soft:#6b3a92}
.achievement-medal{position:relative;display:grid;place-items:center;width:58px;height:66px;margin-top:2px;color:#06111d;font-size:25px;font-weight:900;background:linear-gradient(145deg,#fff8,var(--medal) 38%,var(--medal-soft));clip-path:polygon(50% 0,89% 19%,100% 62%,72% 100%,28% 100%,0 62%,11% 19%);filter:drop-shadow(0 0 9px color-mix(in srgb,var(--medal) 42%,transparent))}.achievement-card.locked .achievement-medal{color:#263345;filter:none;background:linear-gradient(145deg,#687384,#303b4c)}.achievement-medal::after{content:"";position:absolute;inset:7px;border:1px solid #ffffff75;clip-path:inherit}
.tier-bronze .achievement-medal{clip-path:polygon(50% 0,93% 25%,82% 84%,50% 100%,18% 84%,7% 25%)}.tier-silver .achievement-medal{clip-path:polygon(50% 0,90% 14%,94% 65%,50% 100%,6% 65%,10% 14%)}.tier-gold .achievement-medal{clip-path:polygon(30% 0,70% 0,100% 30%,100% 70%,70% 100%,30% 100%,0 70%,0 30%)}.tier-platinum .achievement-medal{clip-path:polygon(50% 0,88% 20%,100% 60%,70% 100%,30% 100%,0 60%,12% 20%)}.tier-diamond .achievement-medal{clip-path:polygon(50% 0,62% 20%,85% 15%,80% 38%,100% 50%,80% 62%,85% 85%,62% 80%,50% 100%,38% 80%,15% 85%,20% 62%,0 50%,20% 38%,15% 15%,38% 20%)}
.achievement-body{min-width:0}.achievement-card .achievement-tier{color:var(--medal)}.achievement-card b{font-size:15px;margin:5px 0}.achievement-card p{min-height:32px;margin-bottom:6px}.achievement-next{display:block;color:#a9bad0;font-size:10px;line-height:1.4}.achievement-card .achievement-progress{position:static;margin-top:10px}.achievement-scale{grid-column:1/-1;padding-top:8px;border-top:1px solid #ffffff0d;color:#758ca7;font-size:9px;line-height:1.45;overflow-wrap:anywhere}.achievement-card.completed .achievement-scale{color:#bc9fe1}
#new-achievement-list>div{grid-template-columns:40px 1fr;padding:9px;background:linear-gradient(100deg,#1b314d,#122238)}#new-achievement-list .reward-medal{display:grid;place-items:center;width:34px;height:39px;clip-path:polygon(50% 0,90% 20%,100% 63%,70% 100%,30% 100%,0 63%,10% 20%);background:linear-gradient(145deg,#fff2a8,#d59b34);color:#362000;font-size:16px}#new-achievement-list em{display:block;color:#ffd66e;font-size:8px;letter-spacing:1px;text-transform:uppercase;font-style:normal}#new-achievement-list b,#new-achievement-list small{display:block}#new-achievement-list small{grid-column:auto;margin-top:2px}#new-achievement-list details{padding:6px 9px;border-radius:6px;background:#101e31;color:#9cc3d5;font-size:10px}#new-achievement-list details summary{cursor:pointer}#new-achievement-list details p{margin:5px 0;font-size:9px}
@keyframes achievement-pop{0%{transform:translateY(10px) scale(.9);opacity:0;filter:brightness(1.8)}65%{transform:translateY(0) scale(1.03);opacity:1;filter:brightness(1.3)}100%{transform:none;filter:none}}
@media(max-width:650px){.achievement-grid{grid-template-columns:1fr}.achievement-card{grid-template-columns:50px 1fr;min-height:175px}.achievement-medal{width:48px;height:55px;font-size:20px}}

/* v0.6.5 public beta, community, pre-game ranking and adaptive presentation. */
html,body{max-width:100%;overflow-x:hidden}.beta-badge{padding:4px 8px;border:1px solid #64e6ee66;border-radius:999px;color:#72eef2;font-size:9px;font-weight:800;letter-spacing:1.5px}.beta-note{max-width:560px;margin:12px 0;padding:9px 12px;border-left:2px solid #72eaf0;background:#12203799;color:#adc5d9;font-size:11px;line-height:1.5}
.community{max-width:720px;margin-top:24px;padding:17px;border:1px solid #253a54;border-radius:12px;background:linear-gradient(145deg,#111d30dd,#091321dd)}.community-heading,.pregame-title{display:flex;align-items:center;justify-content:space-between;gap:15px}.community h2,.pregame-leaderboard h2{margin:4px 0;font-size:20px;letter-spacing:0}.period-tabs{display:flex;gap:5px}.period-tabs button{padding:7px 10px;background:#182a42;color:#a9bdd1;font-size:10px}.period-tabs button.active{background:#65e9eb;color:#07141d}.community-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;margin-top:13px}.community-stat{min-width:0;padding:10px;border-radius:8px;background:#091423}.community-stat b,.community-stat small{display:block}.community-stat b{color:#dffcff;font-size:18px}.community-stat small{margin-top:3px;color:#8299af;font-size:9px;line-height:1.35}.community-stat.wide{grid-column:span 2}
.pregame-leaderboard{margin:16px 0;padding:14px;border:1px solid #2d4561;border-radius:10px;background:#091525}.pregame-leaderboard .leaderboard-list{max-height:210px}.pregame-leaderboard #pregame-personal{padding:9px 0 0;color:#9cd6dd;font-size:11px}.pregame-title>span{color:#75e9ec;font-size:11px;font-weight:750}.performance-status{padding:8px;border-radius:6px;background:#081321;color:#72e7ec;font:11px ui-monospace,monospace}.requirements{margin:10px 0 14px;padding:10px;border:1px solid #263b55;border-radius:7px}.requirements summary{cursor:pointer;font-weight:700}.requirements p{margin:7px 0;color:#9aacc0;font-size:11px}.dialog-actions{display:flex;gap:10px;flex-wrap:wrap}.dialog-actions button{flex:1}.quick-guide b{display:block}
body[data-quality=reduced] #ambient i:nth-child(n+71),body[data-quality=mobile] #ambient i:nth-child(n+33){display:none}body[data-quality=reduced] #ambient{filter:saturate(.85)}body[data-quality=mobile] #ambient{filter:none;opacity:.65}body[data-quality=mobile] .orbital{filter:none}body[data-quality=mobile] .orbit{box-shadow:none}body[data-quality=mobile] #game{filter:none}body[data-quality=mobile] .hud{backdrop-filter:none}
#arena-shell,#game canvas{touch-action:none;overscroll-behavior:none}body.playing{overscroll-behavior:none}body.playing #arena-shell{user-select:none;-webkit-user-select:none}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}}
@media(max-width:760px){header,footer{padding:14px 4%}.private{display:none}main{display:block;min-height:0;padding:28px 4% 22px}.site-header{gap:8px}.brand{font-size:15px;letter-spacing:2px}aside{display:none}h1{margin:16px 0;font-size:clamp(31px,11vw,44px)}.lead br{display:none}.menu-actions,.account-actions,.load{display:grid;grid-template-columns:1fr 1fr;gap:8px}.menu-actions button,.account-actions button,.load button{width:100%}.menu-actions #menu-play,.load #choose-track{grid-column:1/-1}.community{padding:13px}.community-heading,.pregame-title{align-items:flex-start;flex-direction:column}.period-tabs{width:100%}.period-tabs button{flex:1}.community-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.community-stat.wide{grid-column:span 2}#ready{padding:12px}#difficulty-select{grid-template-columns:1fr}dialog{width:min(94vw,620px);max-height:88dvh;padding:17px;overflow:auto}.leaderboard-head,.leaderboard-row{grid-template-columns:34px minmax(90px,1.4fr) minmax(58px,.8fr) 56px 48px;font-size:9px}.leaderboard-row{padding:8px 3px}.leaderboard-controls{gap:5px}.leaderboard-controls button{padding:9px}.profile-stats{grid-template-columns:repeat(2,1fr)}#arena-shell{width:100vw;height:100dvh;inset:0}.play-footer{gap:5px;padding:8px}.play-footer>*{font-size:9px}.play-footer button{padding:8px}.hud{padding:7px;gap:3px}.hud small{font-size:7px}.hud strong{font-size:15px}.result-card{width:min(94vw,520px);max-height:90dvh;overflow:auto;padding:18px}.result-card #total{font-size:44px}.dialog-actions{flex-direction:column}.dialog-actions button{width:100%}}
@media(max-width:380px){.community-grid{grid-template-columns:1fr}.community-stat.wide{grid-column:auto}.menu-actions,.account-actions,.load{grid-template-columns:1fr}.period-tabs button{padding:7px 5px;font-size:9px}.leaderboard-head,.leaderboard-row{grid-template-columns:30px minmax(72px,1.4fr) 52px 48px 38px}.hud #hud-intensity{display:none}}