:root{color-scheme:dark;--bg:#101719;--sidebar:#131c1e;--panel:#192326;--border:#2a3638;--text:#f1f4ee;--muted:#91a1a1;--accent:#c9f78a;--accent-dark:#263522;--orange:#f3bc83;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans JP",sans-serif;font-synthesis:none}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}button,input,textarea,select{font:inherit}button,a,input{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{opacity:.4;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button{color:inherit}a{color:var(--accent)}[hidden]{display:none!important}.app-shell{display:grid;grid-template-columns:264px minmax(0,1fr);min-height:100dvh}.sidebar{position:sticky;top:0;height:100dvh;background:var(--sidebar);border-right:1px solid var(--border);padding:34px 22px 22px;display:flex;flex-direction:column;min-width:0}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text);font-size:19px;font-weight:650;letter-spacing:-.6px}.brand-mark{width:40px;height:40px;background:var(--accent);color:#223019;border-radius:12px;display:grid;place-items:center;font-size:27px}.brand small{display:block;font-size:8px;letter-spacing:1.3px;color:var(--muted);margin-top:6px;font-weight:500}.library-heading{display:flex;justify-content:space-between;align-items:center;margin:46px 0 18px;font-size:13px;font-weight:600}.small-pill{font-size:11px;background:#253033;color:var(--muted);border-radius:6px;padding:3px 7px}.search{display:flex;align-items:center;gap:7px;background:#1c2729;border:1px solid var(--border);border-radius:9px;padding:9px 11px;margin-bottom:16px;color:var(--muted)}.search span{font-size:22px;line-height:1}.search input{min-width:0;width:100%;background:none;border:0;color:var(--text);font-size:12px;outline:0;padding:2px}.track-list{flex:1;min-height:100px;overflow:auto;margin:0 -8px}.track-row{display:flex;align-items:center;gap:10px;width:100%;background:none;border:1px solid transparent;border-radius:10px;text-align:left;padding:12px 9px;margin:3px 0}.track-row.active{background:#243026;border-color:#394830}.track-icon{width:35px;min-width:35px;height:39px;border-radius:8px;background:#253134;display:grid;place-items:center;color:var(--muted);font-size:18px}.active .track-icon{background:#3b4c31;color:var(--accent)}.track-copy{min-width:0}.track-copy strong{font-size:12px;line-height:1.6;display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.track-copy small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.track-row .playing-dot{margin-left:auto;color:var(--accent)}.library-empty{font-size:12px;line-height:1.8;color:var(--muted);padding:12px 10px}.library-buttons{display:grid;gap:9px;margin-top:18px}.button{background:#222e31;border:1px solid #354144;border-radius:11px;min-height:44px;padding:12px 18px;font-size:13px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:9px;transition:background .16s,transform .16s}.button:hover{background:#303c3c}.button:active{transform:scale(.98)}.primary{background:var(--accent);border-color:var(--accent);color:#172313}.primary:hover{background:#dbffa9}.import-button{color:var(--accent);font-size:12px}.youtube-button{font-size:12px}.youtube-mark{background:#ec625c;border-radius:4px;width:19px;height:13px;font-size:9px;display:grid;place-items:center;color:#fff}.sidebar-bottom{margin-top:26px;border-top:1px solid var(--border);padding-top:19px;display:grid;gap:8px}.privacy-line{font-size:9px;color:var(--muted);display:flex;align-items:center;gap:5px;margin-bottom:7px;white-space:nowrap}.status-dot,.connection i{width:6px;height:6px;display:inline-block;background:var(--accent);border-radius:50%}.text-button{border:0;background:none;padding:6px 0;color:var(--accent);font-size:12px;text-align:left;line-height:1.6}.text-button:hover{text-decoration:underline}.sidebar-bottom .text-button{color:var(--muted);font-size:11px}.main{padding:0 42px;min-width:0;max-width:1380px;width:100%;margin:auto}.topbar{height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);font-size:10px;letter-spacing:2px;color:var(--muted)}.topbar>div{display:flex;gap:20px;align-items:center}.connection{display:flex;align-items:center;gap:7px;font-size:11px;letter-spacing:0}.icon-button{width:34px;height:34px;display:grid;place-items:center;flex-shrink:0;border:1px solid #354144;background:transparent;border-radius:50%;font-size:15px;color:var(--muted);font-weight:600}.notice{border:1px solid #5b5232;background:#29291f;padding:12px 16px;border-radius:10px;font-size:12px;line-height:1.8;margin-top:18px}.empty-state{min-height:calc(100dvh - 93px);display:flex;align-items:center;justify-content:center;flex-direction:column;text-align:center;padding:60px 0}.eyebrow{font-size:10px;letter-spacing:2.2px;color:var(--accent);font-weight:650}.empty-state h1{font-size:clamp(36px,5vw,66px);letter-spacing:-2px;line-height:1.45;margin:25px 0 15px;font-weight:650}.empty-state h1 span{color:var(--accent)}.empty-state p{color:var(--muted);font-size:14px;line-height:2}.empty-illustration{height:108px;display:flex;align-items:center;gap:11px;margin:25px 0 34px}.empty-illustration span{width:9px;height:22px;border-radius:9px;background:#658047}.empty-illustration span:nth-child(2),.empty-illustration span:nth-child(8){height:44px}.empty-illustration span:nth-child(3),.empty-illustration span:nth-child(7){height:70px;background:#91b660}.empty-illustration span:nth-child(4),.empty-illustration span:nth-child(6){height:96px;background:var(--accent)}.empty-illustration span:nth-child(5){height:64px;background:var(--accent)}.empty-actions{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-bottom:20px}.empty-footnote{margin-top:36px;font-size:10px;color:var(--muted)}.song-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:34px 0 24px}.song-heading h1{font-size:27px;letter-spacing:-.7px;line-height:1.5;margin:9px 0 8px;overflow-wrap:anywhere}.song-heading p{margin:0;color:var(--muted);font-size:11px}.player-panel{background:linear-gradient(120deg,#1c292b,#192326);border:1px solid var(--border);border-radius:18px;padding:25px 27px 18px}.player-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.position{font-size:39px;letter-spacing:-1.5px;font-weight:500;font-variant-numeric:tabular-nums}.total{font-size:12px;color:var(--muted);font-variant-numeric:tabular-nums}.loop-indicator{display:grid;gap:7px;text-align:right}.loop-indicator>span{color:var(--accent);font-size:10px;letter-spacing:1.6px;font-weight:600}.loop-indicator small{color:var(--muted);font-size:10px}.waveform-wrap{height:109px;position:relative;margin:0 0 5px;touch-action:pan-y}.waveform-wrap canvas{width:100%;height:100%;display:block;cursor:crosshair}.wave-label{position:absolute;top:0;font-size:9px;color:var(--orange);pointer-events:none;background:#30332a;border:1px solid #5b5840;border-radius:3px;padding:2px 4px}.wave-label.left{left:0}.wave-label.right{right:0}input[type=range]{width:100%;height:28px;accent-color:var(--accent);cursor:pointer;margin:0;touch-action:pan-y}.seek-slider{height:18px!important}.timeline-labels{display:flex;justify-content:space-between;color:var(--muted);font-size:9px;font-variant-numeric:tabular-nums;margin-top:4px}.transport{display:flex;align-items:stretch;justify-content:center;gap:12px;padding:24px 0 28px}.transport .button{height:63px}.skip{padding:8px 19px;display:grid;gap:0;border-color:transparent;background:none;color:var(--muted)}.skip span{font-size:24px;line-height:25px}.skip small{font-size:9px}.restart{padding:15px 27px;font-size:14px}.restart>span{font-size:23px}.play{min-width:208px;font-size:16px}.play>span{font-size:15px}.practice-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.card{background:var(--panel);border:1px solid var(--border);border-radius:16px;padding:22px;min-width:0}.card-heading{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}h2{margin:0;font-size:13px;font-weight:600;line-height:1.5}h2>span:first-child{font-size:17px;color:var(--muted);margin-right:7px}.switch{position:relative;display:inline-block;width:34px;height:20px;flex-shrink:0}.switch input{position:absolute;opacity:0;width:100%;height:100%;margin:0}.switch>span{display:block;background:#455153;width:34px;height:20px;border-radius:14px;pointer-events:none}.switch>span:after{content:'';position:absolute;width:14px;height:14px;background:#dde5df;border-radius:50%;top:3px;left:3px;transition:transform .15s}.switch input:checked+span{background:#91b468}.switch input:checked+span:after{transform:translateX(14px);background:#fff}.switch input:focus-visible+span{outline:2px solid var(--accent);outline-offset:4px}.markers{display:flex;align-items:center;gap:13px}.marker{padding:13px 14px;flex:1;text-align:left;border:1px solid #3e4c38;background:#243025;border-radius:10px;min-width:0}.marker>span{color:var(--accent);font-size:13px;font-weight:600}.marker small{font-size:9px;color:var(--muted);font-weight:400}.marker>span>small{margin-left:6px}.marker strong{display:block;font-size:25px;letter-spacing:-1px;font-variant-numeric:tabular-nums;margin:7px 0 4px;font-weight:500}.range-arrow{color:var(--muted);font-size:13px}.card-footer{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:17px;color:var(--muted);font-size:10px}.card-footer .text-button{font-size:10px}.subdued{color:var(--muted)}.speed-label{font-size:25px;letter-spacing:-1px;font-weight:500;color:var(--accent);font-variant-numeric:tabular-nums}.speed-label span{font-size:14px;margin-left:4px}.tempo-card .card-heading{margin-bottom:12px}.speed-presets{display:flex;gap:7px;margin:12px 0 14px}.speed-presets button,.segmented button{min-height:36px;flex:1;background:#202c2e;border:1px solid #354144;border-radius:7px;color:var(--muted);font-size:11px;padding:5px 10px}.speed-presets button.selected,.segmented button.selected{color:var(--accent);background:#303f28;border-color:#6a8050}.caption{font-size:10px;color:var(--muted);line-height:1.7;margin:6px 0 0}.count-card{margin-top:18px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:18px;padding-bottom:18px}.count-settings{display:flex;align-items:center;gap:18px}.segmented{display:flex;gap:4px}.segmented button{white-space:nowrap;padding:6px 14px}.bpm-label{display:flex;align-items:center;gap:8px;font-size:10px;color:var(--muted);white-space:nowrap}.bpm-label input{width:57px;background:#111b1d;color:var(--text);border:1px solid var(--border);border-radius:6px;padding:9px 6px;text-align:center;font-size:12px}.count-settings>.text-button{font-size:10px}.phrases-card{margin-top:24px}.compact{font-size:10px;min-height:34px;padding:8px 12px}.muted-count{font-size:10px;color:var(--muted);margin-left:6px}.phrases{display:grid;grid-template-columns:repeat(auto-fit,minmax(205px,1fr));gap:12px}.phrase-empty{grid-column:1/-1;font-size:11px;color:var(--muted);line-height:1.8;padding:8px 0 16px}.phrase-card{background:#202b2d;border:1px solid #344042;border-radius:10px;padding:14px 16px;position:relative;min-width:0}.phrase-card:hover{border-color:#6a8050}.phrase-main{display:block;width:100%;text-align:left;background:none;border:0;padding:0 24px 0 0}.phrase-main strong{display:block;font-size:12px;font-weight:500;line-height:1.6;overflow-wrap:anywhere}.phrase-main strong>span{color:var(--orange);margin-right:8px}.phrase-main small{display:block;color:var(--muted);font-size:9px;line-height:1.8;margin-top:8px;font-variant-numeric:tabular-nums}.phrase-note{font-size:10px;color:var(--muted);line-height:1.7;margin:8px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.phrase-delete{position:absolute;right:7px;top:9px;width:28px;height:28px;border:0;background:none;color:var(--muted);font-size:14px}.note-card{display:flex;gap:15px;align-items:flex-start;margin-top:22px;padding:22px 0;border-bottom:1px solid var(--border)}.note-card>span{color:var(--orange);font-size:20px}.note-card>div{flex:1;min-width:0}.note-card p{color:var(--muted);font-size:11px;line-height:1.8;margin:8px 0 0;white-space:pre-wrap;overflow-wrap:anywhere}.studio-footer{display:flex;justify-content:space-between;gap:12px;color:#667b79;font-size:9px;padding:22px 0 26px;line-height:1.8}kbd{font:9px inherit;padding:3px 5px;border:1px solid var(--border);border-radius:4px;margin-left:9px}.youtube-area{margin-bottom:20px}.youtube-area>iframe,.youtube-area>#youtube-player{width:100%;aspect-ratio:16/9;min-width:200px;min-height:200px;display:block;border:0;border-radius:12px}.youtube-area p{font-size:10px;line-height:1.8;color:var(--muted);margin:9px 0 0}.youtube-area a{float:right}.youtube-active .waveform-wrap{height:35px}.youtube-active .wave-label{top:0}.youtube-active .player-panel{padding-top:16px}.youtube-active .player-head{margin-bottom:8px}.youtube-active .position{font-size:30px}.youtube-active .transport{padding:16px 0 20px}dialog{background:var(--panel);color:var(--text);border:1px solid #43514c;border-radius:20px;width:min(540px,calc(100% - 32px));max-height:85dvh;padding:0;box-shadow:0 20px 100px #0008}dialog::backdrop{background:#061011cc;backdrop-filter:blur(5px)}dialog form{display:flex;flex-direction:column}dialog header{padding:22px 25px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}dialog header h2{font-size:18px}#modal-body{padding:22px 25px;overflow:auto;font-size:12px;line-height:1.9}#modal-body p{color:var(--muted);margin-top:0}#modal-body h3{font-size:13px;margin:20px 0 8px;color:var(--text)}#modal-body a{overflow-wrap:anywhere}#modal-body .field{display:grid;gap:7px;margin:0 0 18px;font-size:12px}#modal-body input:not([type=checkbox]),#modal-body textarea{width:100%;background:#10191b;color:var(--text);border:1px solid #3a484b;border-radius:9px;padding:12px;font-size:14px}#modal-body textarea{min-height:110px;resize:vertical}#modal-body .checkbox-line{display:flex;align-items:flex-start;gap:10px;font-size:11px;line-height:1.8;margin:15px 0}#modal-body input[type=checkbox]{accent-color:var(--accent);min-width:18px;min-height:18px}dialog footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 25px;border-top:1px solid var(--border)}.danger{background:#4e2724;border-color:#75413d;color:#ffb8ad}.dialog-stats{padding:13px 15px;border-radius:10px;background:#243025;color:var(--accent);font-variant-numeric:tabular-nums}.dialog-buttons{display:grid;gap:12px}.dialog-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px}.toast{position:fixed;bottom:25px;left:50%;transform:translateX(-50%);max-width:calc(100% - 32px);background:#e5f2d9;color:#1c2a1b;padding:13px 22px;border-radius:12px;font-size:12px;box-shadow:0 6px 40px #0005;z-index:10;line-height:1.7}.busy{opacity:.6;pointer-events:none}
@media(min-width:1500px){.main{padding:0 65px}.sidebar{padding-left:28px;padding-right:28px}.app-shell{grid-template-columns:288px minmax(0,1fr)}}
@media(max-width:1100px){.app-shell{grid-template-columns:226px minmax(0,1fr)}.sidebar{padding:27px 17px 18px}.brand{font-size:16px;gap:8px}.brand small{font-size:7px}.brand-mark{width:34px;height:36px}.main{padding:0 27px}.card{padding:18px}.count-card{align-items:flex-start;flex-direction:column;gap:14px}.count-settings{width:100%;justify-content:space-between}.play{min-width:178px}.restart{padding:15px 18px}.privacy-line{font-size:8px}.song-heading h1{font-size:24px}}
@media(max-width:800px){.practice-grid{grid-template-columns:1fr}.app-shell{grid-template-columns:195px minmax(0,1fr)}.sidebar{padding:23px 14px 16px}.brand{font-size:14px}.brand small{font-size:6px;letter-spacing:.7px}.brand-mark{width:31px;height:34px}.main{padding:0 20px}.sidebar-bottom .privacy-line{white-space:normal;line-height:1.7}.sidebar-bottom .status-dot{flex-shrink:0}.library-buttons .button{padding:10px 8px;font-size:10px}.topbar{height:73px}.song-heading{padding-top:26px}.song-heading h1{font-size:22px}.player-panel{padding:20px}.position{font-size:32px}.transport{gap:8px;flex-wrap:wrap}.transport .button{height:58px}.play{min-width:160px;font-size:14px}.restart{font-size:12px;padding:12px}.skip{padding:8px 6px}.count-settings{gap:8px;flex-wrap:wrap}.segmented button{padding:6px 10px}.keyboard-tip{display:none}}
@media(max-width:580px){.app-shell{display:flex;flex-direction:column}.sidebar{position:static;width:100%;height:auto;padding:18px 20px;border-right:0;border-bottom:1px solid var(--border)}.brand{font-size:18px}.brand small{font-size:7px;letter-spacing:1px}.brand-mark{width:36px;height:37px}.library-heading{margin:23px 0 12px}.search{margin-bottom:9px}.track-list{display:flex;gap:6px;min-height:0;max-height:100px;margin:0;overflow:auto}.track-row{min-width:165px;max-width:210px;margin:0}.library-empty{padding:5px 0}.library-buttons{display:flex;margin-top:12px;gap:8px}.library-buttons .button{flex:1;font-size:10px}.sidebar-bottom{display:none}.main{padding:0 18px}.topbar{height:55px;font-size:8px;letter-spacing:1.3px}.topbar>div{gap:12px}.empty-state{min-height:540px;padding:48px 0}.empty-state h1{font-size:42px}.empty-state p{font-size:12px}.empty-footnote{font-size:8px}.song-heading{padding:23px 0 20px}.song-heading h1{font-size:22px}.player-panel{padding:18px 16px}.position{font-size:34px}.waveform-wrap{height:88px}.timeline-labels{font-size:8px}.transport{gap:8px;padding:20px 0}.transport .button{height:57px}.restart{flex:1}.play{min-width:0;flex:1.4}.skip{width:30px;flex-shrink:0;padding:5px 3px}.skip span{font-size:22px}.count-settings{justify-content:flex-start;gap:12px}.count-settings>.text-button{margin-left:auto}.phrases{grid-template-columns:1fr}.card-heading{gap:8px}h2{font-size:12px}.compact{font-size:9px;padding:8px}.marker strong{font-size:27px}.card-footer .text-button{font-size:11px}.studio-footer{font-size:9px}.youtube-area a{float:none;display:block}.youtube-area>iframe{min-height:200px}}
@media(max-width:980px){.practice-grid{grid-template-columns:1fr}}
.waveform-wrap{touch-action:none;user-select:none;-webkit-user-select:none;margin:12px 22px 10px}
.range-handle{position:absolute;top:0;bottom:0;width:44px;transform:translateX(-50%);cursor:ew-resize;touch-action:none;z-index:2;outline-offset:0}
.range-handle:before{content:'';position:absolute;left:21px;top:0;bottom:0;width:2px;background:var(--orange)}
.range-handle:after{content:'⋮';position:absolute;top:50%;left:14px;transform:translateY(-50%);width:16px;height:32px;display:grid;place-items:center;border-radius:7px;background:var(--orange);color:#38291b;font-size:20px;box-shadow:0 2px 8px #0005}
.range-handle>span{position:absolute;top:-10px;left:11px;width:22px;text-align:center;padding:3px 0;border-radius:5px;background:var(--orange);color:#38291b;font-size:11px;font-weight:700}
.range-handle:hover:after,.range-handle:focus-visible:after,.editing-range .range-handle:after{background:#ffdfaf}
.range-handle[data-range-handle=start]{bottom:50%}
.range-handle[data-range-handle=end]{top:50%}
.range-handle[data-range-handle=end]>span{top:auto;bottom:-10px}
.youtube-active .waveform-wrap{height:96px}
.youtube-area{width:100%;max-width:100%;min-width:0}
.youtube-area>iframe,.youtube-area>#youtube-player{display:block;width:100%!important;max-width:100%;min-width:0;height:auto!important;aspect-ratio:16/9;min-height:200px}
.youtube-area p{display:flex;flex-wrap:wrap;gap:4px 12px;overflow-wrap:anywhere}
.youtube-area a{float:none;flex-shrink:0}
.app-shell>*{min-width:0}.main{min-width:0}.main>*,#studio{max-width:100%;min-width:0}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

.youtube-area{position:sticky;top:0;z-index:5;background:var(--bg);padding:8px 0;border-bottom:1px solid var(--border)}
.youtube-area>iframe,.youtube-area>#youtube-player{width:min(100%,360px)!important;margin-inline:auto}
.youtube-area p{justify-content:center;font-size:9px}
.speed-presets{flex-wrap:wrap}
.speed-presets button{flex:1 1 48px;min-width:0;padding-inline:6px}
.range-toolbar{display:flex;justify-content:flex-end;margin-bottom:8px}
#range-lock[aria-pressed=true]{background:var(--accent-dark);color:var(--accent);border-color:#6a8050}
.range-locked,.range-locked .range-handle{touch-action:pan-y;cursor:default}
.range-locked canvas{cursor:default}
.range-locked .range-handle:after{display:none}
.range-locked .range-handle>span{background:#69765d;color:white}

.library-item{display:flex;align-items:center;gap:2px;min-width:0;margin:3px 0}
.library-item .track-row{flex:1;min-width:0;margin:0;padding-right:4px}
.library-menu{flex:0 0 44px;min-height:44px;border:1px solid var(--border);border-radius:9px;background:#202b2d;color:var(--muted);font-size:15px}
.library-menu:hover{color:var(--accent);border-color:#6a8050}
@media(max-width:580px){.library-item{flex:0 0 230px;max-width:260px}.library-item .track-row{min-width:0;max-width:none}}