html,body{background:#07070d}body{font-family:-apple-system,BlinkMacSystemFont,"PingFang SC",sans-serif}button,select,input{font-family:inherit}[hidden]{display:none!important}#library{position:fixed;inset:0;z-index:6}#panel{z-index:10;background:radial-gradient(ellipse at 50% 25%,#252035f7,#08090ff7 80%);backdrop-filter:blur(18px)}.arc-setting{display:grid;grid-template-columns:1fr 240px;gap:24px;align-items:center;border-bottom:1px solid #ffffff0c;padding:17px 0}.arc-setting>label,.arc-setting>span{font-size:13px}.arc-setting small{display:block;font-size:11px;color:#827d94;margin-top:7px;line-height:1.7}.arc-setting select{max-width:100%;width:100%;font-size:12px;background:#1b1d28;border:1px solid #ffffff16;border-radius:7px;padding:9px}.arc-setting input[type=range]{width:100%;accent-color:#eac58a}.arc-setting .slider-control{display:grid;grid-template-columns:1fr 51px;gap:12px;align-items:center}.arc-setting output{text-align:right;font-size:12px;font-variant-numeric:tabular-nums;color:#f2d5a0}.arc-setting input[type=checkbox]{justify-self:end;width:36px;height:20px;accent-color:#eac58a}.arc-kbd{font-size:11px;display:inline-block;border:1px solid #ffffff26;border-radius:4px;padding:2px 7px;margin:0 2px;color:#f0e1c5}.arc-result-title{font-size:14px;color:#bdb1a3;letter-spacing:.04em;margin-bottom:18px}.arc-result .rank{font-size:116px}.arc-result .tags span{font-size:11px}.arc-result table{width:390px}.arc-result .result-score{font-size:40px}.arc-result .best{line-height:1.8;letter-spacing:.02em}.arc-result .actions .go{min-width:170px}.arc-result .actions button{border-radius:7px}#toast{position:fixed;z-index:40;bottom:30px;left:50%;max-width:85vw;transform:translate(-50%,15px);opacity:0;pointer-events:none;padding:13px 22px;border:1px solid #ead6b32b;background:#17171ff2;backdrop-filter:blur(15px);border-radius:9px;color:#f6e3be;font-size:12px;transition:opacity .2s,transform .2s;box-shadow:0 10px 40px #0006}#toast.visible{opacity:1;transform:translate(-50%,0)}#tools{bottom:38px}#tools button{border-radius:6px;border-color:#ffffff20;background:#14141ec9}.pause-inner{width:min(720px,94vw)}.pause-inner .sound-grid{background:#ffffff03;border-radius:10px;margin-top:22px}.pause-inner .subtitle{letter-spacing:.03em}
@media(max-width:800px){.arc-setting{grid-template-columns:1fr 180px;gap:12px}}@media(prefers-reduced-motion:reduce){#toast{transition:none}}


/* Calm transitions, one best record, and a range editor shared by both menus. */
.arc-hero-art,.arc-info{animation:none}.arc-showcase{position:relative}.arc-hero-jacket{position:relative;z-index:1}.arc-showcase.is-switching .arc-hero-jacket{animation:arc-jacket-in .52s cubic-bezier(.2,.75,.25,1) both}.arc-showcase.is-switching .arc-info{animation:arc-info-enter .36s ease-out both}.arc-jacket-outgoing{position:absolute!important;inset:0 0 auto!important;width:100%;aspect-ratio:1;z-index:2;pointer-events:none;animation:arc-jacket-out .48s ease both!important}.arc-art-edge{transition:border-color .3s}.arc-track,.arc-track-art,.arc-track-copy strong,.arc-track-arrow{transition:color .25s,background .25s,border-color .25s,opacity .25s,transform .25s!important}.arc-info{max-height:calc(100vh - 182px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#8ed5d836 transparent;padding:3px 8px 10px 0}.arc-song-title{margin:13px 0 0}.arc-song-facts{margin-top:16px;padding-bottom:15px;gap:13px}.arc-diff-heading{margin-top:16px;font-size:10px;letter-spacing:.06em}.arc-chart-stats{margin:11px 0 14px;font-size:9px;letter-spacing:.02em}.arc-chart-stats b{font-size:12px}.arc-play-row{display:block;margin-top:19px}.arc-play{width:100%;min-height:62px}.arc-range-row button{min-width:65px;font-size:11px!important}.arc-mode-row{font-size:11px;min-height:36px}.arc-mode-row button{font-size:10px}.arc-song-kicker{font-size:12px;letter-spacing:.12em}.arc-top-actions{gap:22px}.arc-top-actions button{white-space:nowrap}.arc-track-number{font-size:9px!important;letter-spacing:.05em!important}.arc-section-heading h1{margin:0}.arc-section-heading{align-items:center}.arc-foot{justify-content:center;height:38px;min-height:38px;font-size:10px;letter-spacing:.03em}
.arc-personal-best{display:block!important;width:100%;text-align:left;border:1px solid color-mix(in srgb,var(--arc-a) 25%,transparent)!important;background:linear-gradient(110deg,color-mix(in srgb,var(--arc-a) 9%,transparent),transparent)!important;padding:12px 15px!important;margin:0 0 15px;transition:border-color .2s,background .2s,transform .2s!important}.arc-personal-best:not(:disabled):hover{border-color:var(--arc-a)!important;transform:translateY(-1px)}.arc-personal-best:disabled{cursor:default;opacity:.65}.arc-best-caption{font-size:10px;color:#a8bac6;letter-spacing:.04em}.arc-personal-best>div{display:flex;align-items:center;gap:13px;margin-top:7px}.arc-best-rank{font-size:24px;color:var(--arc-a);min-width:32px;font-weight:700}.arc-personal-best strong{font-size:27px;letter-spacing:.035em;color:#e4edf2;font-weight:650;font-variant-numeric:tabular-nums}.arc-personal-best>div>span{margin-left:auto;text-align:right;font-size:13px;color:var(--arc-a);font-variant-numeric:tabular-nums}.arc-personal-best i{display:block;font-size:9px;font-style:normal;color:#8eabb6;margin-top:4px}
.arc-practice-editor{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:4px 0 12px;padding:12px;background:#ffffff04;border:1px solid #b4d6de18;border-radius:9px}.arc-practice-field{min-width:100px;flex:1}.arc-practice-field>span{display:block;font-size:10px;color:#8ea7b4;margin-bottom:7px}.arc-practice-field>div{display:flex;align-items:center;background:#071015bb;border:1px solid #a4d5df25;border-radius:5px;overflow:hidden;transition:border-color .2s,box-shadow .2s}.arc-practice-field>div:focus-within{border-color:#a2d9df;box-shadow:0 0 0 3px #a2d9df13}.arc-practice-field input{width:100%;min-width:0;border:0!important;padding:7px 1px!important;text-align:center;font-size:14px;background:transparent;color:#dfedf0;font-variant-numeric:tabular-nums;outline:none;-moz-appearance:textfield;appearance:textfield}.arc-practice-field input::-webkit-inner-spin-button,.arc-practice-field input::-webkit-outer-spin-button{-webkit-appearance:none;margin:0}.arc-practice-field button{padding:7px!important;flex:0 0 27px;border:0!important;color:#9ecbd2!important;font-size:12px!important;background:transparent!important;border-radius:0!important;transition:background .16s!important}.arc-practice-field button:hover{background:#9ecbd21a!important}.arc-practice-field button:active{background:#9ecbd237!important}.arc-practice-field i{font-size:10px;font-style:normal;color:#6b8590;padding-right:7px}.arc-practice-divider{color:#57717e;margin-top:19px}.arc-practice-error{width:100%;margin:3px 0 0!important;color:#f2b7a9!important;font-size:11px!important;line-height:1.5!important}.arc-practice-apply{border:1px solid #a1d4db60!important;background:#a1d4db16!important;color:#d1e9ec!important;border-radius:6px!important;padding:10px 15px!important;font-size:12px!important;align-self:flex-end;margin-bottom:1px;white-space:nowrap}.arc-pause-practice{text-align:left;margin:20px 0 25px}.arc-pause-practice h2{font-size:13px;font-weight:500;margin-bottom:10px;color:#adb8ca}.arc-pause-practice .arc-practice-editor{padding:15px}.pause-inner{max-height:92vh;overflow-y:auto;padding:5px 14px}.pause-inner h1{font-size:54px;margin:8px 0}.pause-inner .sound-grid{margin-top:14px}.pause-inner .actions{margin-top:15px}.pause-inner .hint{margin-top:18px}.arc-setting .slider-control{grid-template-columns:1fr 65px}

.hub-header{min-height:22px;height:auto;padding-bottom:10px}.hub-hero{min-height:300px}.hub-hero-copy h1{font-size:clamp(44px,5vw,75px)}.hub-hero-copy h1 span{font-size:.46em;letter-spacing:.22em;color:#afc8d5}.hub-hero-actions{margin-top:28px}.hub-section-title>div>h2{margin-top:0}.hub-collections .collection-card{min-height:125px}.hub-mode-cards p{min-height:42px}.hub-main{padding-bottom:35px}
@keyframes arc-jacket-in{from{opacity:0;transform:translateX(14px) scale(.986)}to{opacity:1;transform:none}}@keyframes arc-jacket-out{from{opacity:1;transform:none}to{opacity:0;transform:translateX(-12px) scale(1.015)}}
@media(max-width:949px){.arc-info{max-height:none;overflow:visible;padding-right:0}.arc-top-actions{gap:15px}.arc-top-actions button{font-size:11px}.arc-top-actions .arc-import{font-size:11px}.arc-range-row button{min-width:65px}}@media(max-width:620px){.arc-top{padding:0 14px;gap:15px}.arc-top-actions{gap:8px;flex-wrap:wrap;justify-content:flex-end}.arc-top-actions button{font-size:10px}.arc-top-actions .arc-import{padding:7px!important;font-size:10px}.arc-top-actions button[data-action=home],.arc-top-actions button[data-action=calibrate]{display:none}.arc-info{width:100%}.arc-play-row{margin-top:18px}.arc-range-row button{min-width:65px}.arc-practice-apply{width:100%;margin-top:7px}.arc-setting{grid-template-columns:1fr 145px}.hub-hero-copy h1{font-size:48px}}
.reduce-motion .arc-library *{animation:none!important;transition:none!important}.reduce-motion .arc-jacket-outgoing{display:none}

.arc-jacket-outgoing>div{width:100%;height:100%}.arc-jacket-outgoing img,.arc-jacket-outgoing svg{width:100%;height:100%;object-fit:cover;display:block}.arc-setting input[type=checkbox],.sound-toggle input[type=checkbox]{appearance:none;-webkit-appearance:none;position:relative;display:inline-block;vertical-align:middle;width:38px;height:22px;min-width:38px;margin:0 7px 0 0;border:1px solid #a3ccd033;border-radius:20px;background:radial-gradient(circle at 10px 50%,#90a4b0 0 6px,transparent 6.5px),#091119;cursor:pointer;transition:background-color .18s,border-color .18s,box-shadow .18s}.arc-setting input[type=checkbox]:checked,.sound-toggle input[type=checkbox]:checked{background:radial-gradient(circle at 26px 50%,#091b20 0 6px,transparent 6.5px),#a6dce0;border-color:#a6dce0}.arc-setting input[type=checkbox]:focus-visible,.sound-toggle input[type=checkbox]:focus-visible{outline:2px solid #d4f2f4;outline-offset:3px}.arc-setting input[type=checkbox]:active,.sound-toggle input[type=checkbox]:active{box-shadow:0 0 0 4px #a6dce017}