:root{color-scheme:dark;--bg:#151a1b;--panel:#1c2324;--line:#ffffff14;--text:#e9edeb;--ivory:#f1eee4;--muted:#a2aaa7;--accent:#b5c6aa;font-family:Manrope,'Noto Sans JP',sans-serif;color:var(--text);background:var(--bg);font-synthesis:none}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button,a,input,select{touch-action:manipulation}button{cursor:pointer;color:inherit;border:1px solid var(--line);background:transparent;border-radius:999px;min-height:44px;padding:10px 18px}button:hover{background:#ffffff08}button:active{background:#b5c6aa24;transition:none}button:disabled{opacity:.4;cursor:not-allowed}a{color:inherit;text-underline-offset:4px}a:hover{color:var(--accent)}:focus-visible{outline:2px solid var(--accent);outline-offset:4px}button[hidden],[hidden]{display:none!important}.topbar{height:94px;padding:0 5%;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.brand{display:flex;gap:13px;text-decoration:none;font-size:23px;letter-spacing:-.7px;align-items:center}.brand strong{font-weight:800}.brand small{display:block;font-size:9px;font-weight:700;letter-spacing:2px;margin-top:4px;color:var(--muted)}.brandmark{background:var(--accent);color:var(--bg);display:grid;place-items:center;width:43px;height:43px;border-radius:12px;font-size:29px;letter-spacing:-3px;padding-right:3px}.topbar nav{display:flex;gap:25px;align-items:center;font-size:12px}.topbar nav a{text-decoration:none}.language{font-weight:800}.quiet{font-size:12px}.topbar .quiet{border-color:#b5c6aa55}main{max-width:1420px;margin:auto;padding:42px 5% 0}.page-heading{display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;gap:20px}.eyebrow{font-size:10px;letter-spacing:2px;color:var(--accent);font-weight:800}h1{font-size:29px;letter-spacing:-.7px;margin:9px 0}p{color:var(--muted);font-size:12px;line-height:1.9}h2{font-size:17px;margin:0}.page-heading p{margin:0}.profile-button{display:flex;align-items:center;gap:15px;border-radius:14px;text-align:left;min-width:220px;padding:14px 20px;background:var(--panel)}.profile-button small{display:block;font-size:10px;color:var(--muted);margin-bottom:5px}.profile-button strong{font-size:15px;font-weight:600}.profile-button>span:last-child{margin-left:auto}.status-dot{height:7px;width:7px;border-radius:100%;background:var(--accent)}.workspace{display:grid;grid-template-columns:300px minmax(0,1fr);gap:28px}.section-heading{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:18px}.section-heading h2{font-size:14px}.count{font-size:11px;color:var(--muted);padding:4px 8px;border:1px solid var(--line);border-radius:6px}.filters{display:flex;gap:5px;flex-wrap:wrap;margin-bottom:15px}.filters button{padding:6px 10px;min-height:34px;font-size:10px;color:var(--muted);border-color:transparent}.filters button.selected{color:var(--ivory);background:#ffffff0b;border-color:var(--line)}.exercise-list{display:flex;flex-direction:column;gap:7px;max-height:702px;overflow:auto;scrollbar-width:thin;padding-right:3px}.exercise-card{display:flex;gap:13px;border-radius:12px;text-align:left;align-items:center;padding:16px 13px;min-height:85px}.exercise-card.selected{background:#b5c6aa12;border-color:#b5c6aa66}.exercise-number{color:#77847b;font-size:10px;align-self:flex-start;padding-top:3px}.exercise-card strong{display:block;font-size:12px;font-weight:600}.exercise-card small{display:block;font-size:10px;color:var(--muted);margin-top:5px;line-height:1.6}.exercise-card .arrow{margin-left:auto;color:var(--accent)}.practice{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:27px;min-width:0}.practice-top{display:flex;justify-content:space-between;gap:12px}.practice-top h2{font-size:24px;letter-spacing:-.5px;margin-top:9px}.practice-top p{margin:6px 0 26px;font-size:11px}.pill{font-size:9px;padding:6px 9px;border:1px solid var(--line);border-radius:999px;white-space:nowrap;height:fit-content;color:var(--muted)}.pattern-header{display:flex;justify-content:space-between;font-size:10px;color:var(--muted);margin-bottom:12px;gap:10px}.pitch-chart{height:178px;border:1px solid var(--line);border-radius:10px;background:repeating-linear-gradient(to top,transparent,transparent calc(25% - 1px),#ffffff08 calc(25% - 1px),#ffffff08 25%);display:flex;align-items:flex-end;padding:22px 17px;gap:8px}.pitch-step{flex:1;background:#b5c6aa15;border-top:3px solid #b5c6aa66;position:relative;min-width:0;border-radius:4px 4px 0 0}.pitch-step span{position:absolute;left:0;right:0;top:-20px;text-align:center;color:#96a091;font-size:9px}.pitch-step.active{background:#b5c6aa55;border-color:var(--ivory)}.pitch-step.active span{color:var(--ivory)}.readout{display:flex;justify-content:space-between;align-items:center;min-height:68px;gap:15px}.readout>div{display:flex;align-items:baseline;gap:15px}#current-note{font-size:29px;font-weight:500;min-width:55px}#current-syllable{font-size:12px;color:var(--accent)}#play-status{font-size:10px;color:var(--muted);text-align:right}.progress-track{height:3px;background:var(--line);border-radius:9px;overflow:hidden}#progress{background:var(--accent);height:100%;width:0}.transport{display:flex;align-items:center;gap:10px;margin:20px 0 25px}.primary{background:var(--accent);color:var(--bg);font-weight:700;font-size:12px;border-color:var(--accent);padding:13px 25px}.primary:hover{background:#c6d7bc}.primary:active{background:#9cb48d}.square{min-width:44px;padding:10px}.transport #time{color:var(--muted);font-size:10px;font-variant-numeric:tabular-nums}.transport .quiet{margin-left:auto;border:none;padding:10px 0;font-size:10px}.settings{display:grid;grid-template-columns:1fr 1.8fr;gap:19px 24px}.settings label>span,.profile-fields label>span{font-size:10px;color:var(--muted);display:block;margin-bottom:8px}select{height:40px;background:#151a1b;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:0 10px;width:100%;font-size:12px}input[type=range]{accent-color:var(--accent);min-width:0;cursor:pointer;height:22px}.tempo{display:flex;align-items:center;gap:8px;height:40px}.tempo input{width:100%}.tempo output{font-size:16px;font-variant-numeric:tabular-nums;min-width:31px}.tempo small{font-size:9px;color:var(--muted)}.secondary-controls{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 0;border-bottom:1px solid var(--line)}.toggle,.volume{display:flex;align-items:center;gap:9px;font-size:11px;color:var(--muted)}input[type=checkbox]{width:17px;height:17px;accent-color:var(--accent)}.volume input{width:92px}.lesson-notes{display:grid;gap:17px;grid-template-columns:1fr 1fr 1fr;margin-top:22px}.lesson-notes h3{font-size:10px;color:var(--accent);margin:0 0 6px}.lesson-notes p{font-size:10px;margin:0;line-height:1.9}.demo-note{font-size:10px;color:var(--muted);border-top:1px solid var(--line);margin-top:20px;padding-top:16px}.demo-note summary{cursor:pointer}.demo-note p{font-size:11px}.routines{margin:38px 0}.section-heading>span{font-size:10px;color:var(--muted)}.routine-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.routine-grid button{display:flex;text-align:left;align-items:center;gap:13px;border-radius:14px;padding:19px 16px}.routine-icon{background:#b5c6aa12;color:var(--accent);font-size:24px;border-radius:10px;width:43px;height:43px;display:grid;place-items:center;flex-shrink:0}.routine-grid strong{font-size:12px;display:block}.routine-grid small{font-size:9px;color:var(--muted);display:block;margin-top:6px;line-height:1.6}.routine-grid button>span:last-child{margin-left:auto;color:var(--muted)}.guide{border-top:1px solid var(--line);padding:32px 0;display:grid;grid-template-columns:1fr 1.8fr;gap:70px}.guide h2{margin-top:10px}.guide ol{list-style:none;counter-reset:steps;display:grid;gap:20px;margin:0;padding:0}.guide li{counter-increment:steps;padding-left:38px;position:relative}.guide li:before{content:'0' counter(steps);position:absolute;left:0;color:var(--accent);font-size:11px;top:3px}.guide strong{font-size:12px}.guide p{font-size:11px;margin-top:5px}.info-strip{border-top:1px solid var(--line);padding:17px 0}.info-strip p{font-size:10px;margin:4px 0}footer{padding:25px 5%;border-top:1px solid var(--line);display:flex;align-items:center;gap:25px;font-size:10px;color:var(--muted);flex-wrap:wrap}footer a{text-decoration:none}footer>div{display:flex;gap:20px}.footer-brand{font-weight:700;color:var(--ivory);font-size:13px}footer small{margin-left:auto;font-size:9px}dialog{background:var(--panel);color:var(--text);border:1px solid #ffffff25;border-radius:14px;width:min(510px,calc(100% - 28px));padding:25px}dialog::backdrop{background:#080c0dd9}.dialog-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.dialog-heading h2{font-size:20px}.preset-buttons{display:flex;gap:10px;margin:22px 0}.preset-buttons button{flex:1;font-size:12px}.profile-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}dialog p{font-size:12px}dialog .primary{margin-top:10px}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);max-width:min(500px,90vw);background:var(--ivory);color:var(--bg);padding:15px 22px;border-radius:12px;font-size:12px;z-index:10}.error{color:#efb3a4}.playing .settings select:disabled{opacity:.65}
@media(min-width:1450px){main{padding-left:40px;padding-right:40px}}
@media(max-width:1000px){.workspace{grid-template-columns:245px minmax(0,1fr);gap:18px}.practice{padding:20px}.lesson-notes{grid-template-columns:1fr}.routine-grid{gap:8px}.routine-grid button{padding:13px;gap:9px}.routine-icon{display:none}.transport{flex-wrap:wrap}.guide{gap:35px}}
@media(max-width:700px){.topbar{height:76px;padding:0 20px}.brand{font-size:20px;gap:9px}.brandmark{width:35px;height:35px;font-size:24px}.topbar nav{gap:16px}.topbar nav>a:first-child{display:none}.topbar .quiet{font-size:10px;padding:8px 12px;min-height:38px}main{padding:27px 16px 0}.page-heading{align-items:flex-start;gap:14px;margin-bottom:25px}h1{font-size:23px}.page-heading p{font-size:10px;max-width:190px}.profile-button{min-width:115px;gap:6px;padding:12px;border-radius:12px}.profile-button .status-dot{display:none}.profile-button small{font-size:8px}.profile-button strong{font-size:11px}.workspace{display:flex;flex-direction:column;gap:22px}.library .section-heading{margin-bottom:10px}.filters{margin-bottom:10px}.exercise-list{flex-direction:row;overflow-x:auto;max-height:none;padding-bottom:7px;scroll-snap-type:x proximity}.exercise-card{min-width:205px;max-width:205px;scroll-snap-align:start;min-height:81px;padding:12px}.exercise-card small{font-size:9px}.practice{padding:19px 16px}.practice-top h2{font-size:23px}.practice-top p{font-size:10px}.pitch-chart{height:155px;padding:25px 12px 17px;gap:6px}.transport{gap:8px;margin:18px 0 23px}.transport .primary{padding:13px 18px}.transport .quiet{width:100%;margin:0;text-align:right;min-height:25px;padding:0}.settings{gap:17px 15px;grid-template-columns:1fr 1.5fr}.lesson-notes{gap:16px}.lesson-notes p{font-size:11px}.lesson-notes h3{font-size:11px}.routine-grid{grid-template-columns:1fr;gap:10px}.routine-grid button{padding:17px}.routine-icon{display:grid}.routines{margin:28px 0}.guide{grid-template-columns:1fr;gap:20px;padding:27px 0}.guide p{font-size:12px}.guide strong{font-size:13px}footer{padding:24px 20px;gap:20px}footer small{margin-left:0}#current-note{font-size:26px}.readout{gap:8px}#play-status{max-width:190px;font-size:9px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
.guide-exercise{margin:20px 0}.guide-exercise>h2{margin-top:10px}.guide-exercise .lesson-notes{grid-template-columns:1fr 1fr 1fr}@media(max-width:700px){.guide-exercise .lesson-notes{grid-template-columns:1fr}}
#mobile-exercise{display:none}@media(max-width:700px){#mobile-exercise{display:block;height:44px}.library .filters,.library .exercise-list{display:none}.workspace{gap:17px}.library .section-heading{margin-bottom:9px}.pitch-chart{height:138px}.page-heading{margin-bottom:20px}.practice-top p{margin-bottom:19px}.readout{min-height:58px}}