:root{color-scheme:light;--paper:#f8f5ef;--card:#fffdf9;--ink:#243e3b;--muted:#707c75;--line:#e1e4d9;--green:#426b53;--mint:#e2ecd9;--purple:#ece8f4;--rose:#f5e4dd;--radius:24px;font-family:ui-rounded,'Segoe UI','Malgun Gothic',sans-serif;color:var(--ink);background:var(--paper);font-synthesis:none}
*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{-webkit-tap-highlight-color:transparent}button{cursor:pointer;color:inherit}button:disabled{cursor:default;opacity:.48}a{color:var(--green)}button{border:0}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #8760bb;outline-offset:3px}[hidden]{display:none!important}.shell{max-width:760px;margin:auto;padding:0 24px calc(110px + env(safe-area-inset-bottom))}.topbar{height:90px;display:flex;align-items:center;justify-content:space-between}.brand{text-decoration:none;color:var(--ink);display:flex;align-items:center;gap:10px;font-size:17px}.brand-mark{display:grid;place-items:center;width:38px;height:38px;border-radius:13px;background:var(--green);color:white;font-size:26px}.icon-button{width:44px;height:44px;border:1px solid var(--line);border-radius:50%;background:transparent;font-size:22px}.page-heading{padding:25px 0 30px}.page-heading.compact{padding:18px 0 23px}.eyebrow{font-size:11px;letter-spacing:1.8px;font-weight:750;text-transform:uppercase;color:var(--green);margin:0 0 14px}h1{font-size:clamp(30px,5vw,42px);line-height:1.32;letter-spacing:-1.5px;margin:0 0 14px;font-weight:750}h2{font-size:21px;letter-spacing:-.5px;margin:0}h3{font-size:17px;margin:0 0 10px}.muted{color:var(--muted);font-size:14px;line-height:1.7;margin:0}.hero-card{background:var(--mint);padding:25px;text-align:left;display:flex;flex-direction:column;position:relative;width:100%;border-radius:var(--radius);min-height:235px;overflow:hidden}.card-label{font-size:12px;letter-spacing:.4px}.card-label span{opacity:.65;margin-left:10px}.hero-card strong{font-size:27px;letter-spacing:-1px;position:relative;margin:31px 0 10px;max-width:80%}.hero-card>span:not(.hero-symbol){position:relative}.hero-card>span:nth-last-child(2){font-size:13px;color:#536653}.hero-symbol{position:absolute;right:18px;top:19px;font-size:136px;line-height:1;color:#6b8d6940;transform:rotate(-16deg)}.card-action{display:flex;justify-content:space-between;font-size:13px;font-weight:700;border-top:1px solid #436c5228;margin-top:22px;padding-top:14px}.note-entry{background:var(--purple);border-radius:var(--radius);padding:22px;width:100%;margin-top:14px;display:flex;gap:15px;align-items:center;text-align:left}.note-entry>span:last-child{margin-left:auto;font-size:25px}.note-entry b{display:block;font-size:17px}.note-entry small{display:block;margin-top:7px;color:#746b86;font-size:12px}.note-icon{font-size:35px;color:#8a77a3}.section-label{display:flex;align-items:center;justify-content:space-between;gap:10px;margin:30px 0 15px}.section-label h2{font-size:16px}.section-label>span{font-size:12px;color:var(--muted)}.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}.stat{text-align:center;border:1px solid var(--line);background:#fff9;padding:16px 4px;border-radius:17px}.stat b{display:block;font-size:24px;letter-spacing:-1px}.stat span{display:block;font-size:10px;color:var(--muted);margin-top:7px}.small .stat{background:transparent;padding:12px 2px}.small .stat b{font-size:21px}.footnote{font-size:12px;color:var(--muted);line-height:1.7;margin:18px 0;overflow-wrap:anywhere}.recent-preview{margin-top:20px}.recent-card{width:100%;text-align:left;padding:18px;border:1px solid var(--line);border-radius:18px;background:var(--card)}.recent-card b{display:block;font-size:16px;margin:7px 0}.recent-card span,.recent-card small{font-size:12px;color:var(--muted)}.bottom-nav{position:fixed;z-index:10;bottom:0;left:50%;transform:translateX(-50%);display:grid;grid-template-columns:repeat(4,1fr);max-width:760px;width:100%;padding:10px 14px calc(12px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:#f8f5eff5;backdrop-filter:blur(12px)}.bottom-nav button{background:transparent;color:#8a948c;min-height:52px;font-size:11px;border-radius:15px}.bottom-nav button span{display:block;font-size:24px;margin-bottom:4px;line-height:1.2}.bottom-nav .active{color:var(--green);background:#e2ecd980;font-weight:750}.trainer-top{display:flex;gap:10px;align-items:center}.select-card{display:flex;gap:12px;align-items:center;text-align:left;background:transparent;flex:1;min-width:0;padding:0}.select-card small{display:block;font-size:11px;color:var(--muted);margin-bottom:5px}.select-card b{font-size:17px}.select-card>span:last-child{margin-left:auto}.mini-symbol{border-radius:13px;background:var(--mint);width:44px;height:44px;display:grid;place-items:center;font-size:26px;flex-shrink:0}.text-button{background:transparent;color:var(--green);font-size:12px;padding:12px 5px;min-height:44px}.training-meta{display:flex;gap:6px;flex-wrap:wrap;margin:17px 0}.training-meta span{font-size:11px;background:#e8e9e1;padding:6px 10px;border-radius:20px}.question-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}.question-top{display:flex;justify-content:space-between;align-items:center}.question-top .eyebrow{margin:0;font-size:10px}.question-top .text-button{padding:5px}.question-card h2{font-size:23px;line-height:1.5;margin:15px 0 10px}.question-help{font-size:12px;color:var(--muted);line-height:1.7;min-height:21px;margin-bottom:17px}.reference-actions{display:flex;gap:7px;flex-wrap:wrap}.reference-actions button{border:1px solid var(--line);background:#f5f4ee;border-radius:12px;min-height:42px;padding:8px 12px;font-size:12px}.listen-button{width:100%;min-height:106px;background:var(--green);color:white;border-radius:19px;display:flex;align-items:center;justify-content:center;gap:14px;font-size:18px;margin:18px 0 10px;box-shadow:0 5px 0 #29473315}.listen-button>span:first-child{font-size:28px}.listen-button.playing{background:#557c5f}.button-row{display:flex;gap:9px;flex-wrap:wrap;margin:10px 0}.button-row>*{flex:1}.primary,.secondary,.file-label{min-height:48px;border-radius:14px;padding:13px 17px;font-weight:650;font-size:14px}.primary{background:var(--green);color:white}.secondary,.file-label{background:transparent;border:1px solid var(--line)}.full{width:100%}.answer-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;margin:19px 0 0}.answer-grid button{background:#f3f3eb;border:1px solid transparent;min-height:55px;border-radius:14px;font-size:14px;padding:11px 6px;overflow-wrap:anywhere}.answer-grid button.correct{background:#dfeeda;border-color:#67875e;opacity:1}.answer-grid button.incorrect{background:#f5e5df;border-color:#ba826d;opacity:1}.feedback{font-size:13px;color:var(--muted);line-height:1.8;padding:17px 0;min-height:65px}.feedback.success{color:#426b53}.feedback.retry{color:#9b644e}.comparison{border-top:1px solid var(--line);padding-top:10px;margin:0 0 18px}.comparison p{font-size:12px}.volume-row{display:flex;align-items:center;gap:9px;font-size:12px;margin:20px 0 5px}.volume-row input{flex:1;min-width:50px;accent-color:var(--green)}.volume-row output{width:35px}.volume-row button{font-size:11px}.beat-lights{display:flex;justify-content:center;gap:12px;margin:18px}.beat-lights i{width:16px;height:16px;border-radius:50%;background:#e4e7de}.beat-lights i.active{background:var(--green);box-shadow:0 0 0 5px #426b5320}#beatStatus{text-align:center;font-size:12px;color:var(--green)}.tap-button{width:100%;min-height:100px;border-radius:18px;background:var(--purple);font-size:20px;font-weight:750;touch-action:manipulation}.notes-list{display:grid;gap:13px;margin:18px 0}.note-card{padding:21px;border:1px solid var(--line);border-radius:20px;background:var(--card);text-align:left;width:100%;min-width:0}.note-card .note-date{font-size:11px;color:var(--muted);display:flex;justify-content:space-between}.note-card h2{margin:12px 0 3px;font-size:20px;overflow-wrap:anywhere}.note-card .artist{font-size:12px;color:var(--muted)}.note-card p{font-size:13px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere;margin-bottom:0}.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.tag{background:var(--purple);color:#76618e;font-size:11px;border-radius:20px;padding:5px 9px}.empty{padding:35px 22px;text-align:center;border:1px dashed #cdd7c7;border-radius:20px;color:var(--muted);line-height:1.9;font-size:14px}.empty-symbol{display:block;font-size:42px;color:#8aa182;margin-bottom:15px}.search{margin-top:20px;display:flex;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:3px 5px}.search>span{font-size:26px}.search input{background:transparent;border:0;min-height:45px;min-width:0;flex:1;font-size:13px;outline-offset:0}.draft-banner{width:100%;background:#ece8f4;margin-top:12px;text-align:left;min-height:48px;padding:12px;border-radius:12px;font-size:12px}.editor-header{display:flex;justify-content:space-between;align-items:center;font-size:11px;color:var(--muted)}.step-dots{display:flex;gap:7px;margin:20px 0 28px}.step-dots span{height:5px;flex:1;border-radius:5px;background:#e0e4d8}.step-dots .active{background:var(--green)}#editorTitle{font-size:30px;margin-bottom:26px}fieldset{border:0;padding:0;margin:0;min-width:0}label:not(.search){display:block;font-size:13px;font-weight:650;line-height:1.7;margin:16px 0}label small{font-weight:400;color:var(--muted);font-size:11px}.required{font-size:10px;color:var(--green);margin-left:5px}input:not([type=range]):not([type=file]),textarea,select{width:100%;border:1px solid var(--line);border-radius:13px;background:var(--card);padding:13px;min-height:49px;margin-top:7px;color:var(--ink);font-size:16px;min-width:0}textarea{resize:vertical;line-height:1.7}.search input{margin-top:0!important;border:0!important;border-radius:0!important;padding:8px!important;background:transparent!important}input[type=date]{min-width:0;max-width:100%}label small:last-child{display:block;margin-top:6px}.chip-grid{display:flex;gap:9px;flex-wrap:wrap;margin:20px 0}.chip{border:1px solid var(--line);border-radius:16px;background:var(--card);padding:14px 16px;min-height:48px;font-size:14px}.chip[aria-pressed=true]{background:var(--mint);border-color:#72956e;color:#345c3d}.step-caption{font-size:14px;color:var(--muted);line-height:1.8}.editor-actions{display:flex;gap:10px;margin:25px 0 15px}.editor-actions .primary{flex:1}.subtle{font-size:11px;color:var(--muted);line-height:1.7}.form-error{font-size:13px;color:#aa5f4d;line-height:1.7;min-height:20px}.note-summary{padding:18px;border-radius:18px;background:var(--mint);font-size:13px;line-height:1.8;overflow-wrap:anywhere}.record-summary{padding:22px;background:var(--purple);border-radius:20px;margin:20px 0;font-size:14px;line-height:1.8}.record-row{display:flex;align-items:center;gap:15px;border-bottom:1px solid var(--line);padding:17px 2px}.record-row>div:first-child{flex:1;min-width:0}.record-row b{font-size:14px}.record-row small{display:block;font-size:11px;color:var(--muted);margin-top:5px}.record-row strong{font-size:20px;font-weight:650}.meter{margin-top:10px;height:5px;background:#e5e8dd;border-radius:4px;overflow:hidden}.meter i{display:block;background:#8aa182;height:100%}.danger{color:#a36352}.save-warning{border-radius:12px;padding:12px;background:#f7e2d7;font-size:13px;line-height:1.6}.toast{position:fixed;bottom:105px;left:50%;transform:translateX(-50%);max-width:calc(100% - 40px);padding:15px 22px;border-radius:15px;background:var(--ink);color:white;font-size:13px;z-index:50;box-shadow:0 10px 30px #243e3b22}dialog{border:1px solid var(--line);border-radius:25px;background:var(--paper);color:var(--ink);padding:25px;width:min(520px,calc(100% - 28px));max-height:88dvh;overflow-y:auto;overscroll-behavior:contain;box-shadow:0 20px 90px #1b362332}dialog::backdrop{background:#233e3566;backdrop-filter:blur(3px)}.dialog-head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:22px}.dialog-head>button{width:42px;height:42px;border-radius:50%;background:#e8ebdf;font-size:17px}.dialog-head h2{font-size:21px}.mode-choices{display:grid;gap:9px}.mode-choice{display:flex;align-items:center;gap:12px;text-align:left;min-height:74px;border-radius:15px;padding:13px;background:var(--card);border:1px solid var(--line)}.mode-choice>span{font-size:25px;flex:0 0 30px}.mode-choice b{font-size:15px}.mode-choice small{display:block;font-size:11px;color:var(--muted);margin-top:6px;line-height:1.6}.mode-choice.active{border-color:#70946a;background:var(--mint)}.settings-section{border-top:1px solid var(--line);padding:20px 0}.settings-section p{font-size:13px;line-height:1.8;color:var(--muted)}.stack{display:grid;gap:9px}.file-label{margin:0!important;text-align:center;position:relative;overflow:hidden;cursor:pointer}.file-label input{position:absolute;inset:0;width:100%;opacity:0;cursor:pointer}.detail-field{margin:20px 0;line-height:1.8;white-space:pre-wrap;overflow-wrap:anywhere;font-size:14px}.detail-field small{display:block;font-size:11px;color:var(--muted);margin-bottom:6px}.skip-link{position:fixed;top:-80px;left:20px;padding:15px;z-index:100;background:white}.skip-link:focus{top:10px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}.page{animation:enter .22s ease-out}@keyframes enter{from{opacity:.5;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}@media(prefers-reduced-motion:reduce){*{animation:none!important;scroll-behavior:auto!important}}@media(min-width:900px){.shell{padding-left:50px;padding-right:50px}.topbar{height:100px}.page-heading{padding-top:40px}.hero-card{min-height:240px}.stats-grid{gap:12px}.bottom-nav{border-left:1px solid var(--line);border-right:1px solid var(--line);border-radius:22px 22px 0 0}.question-card{padding:30px}.answer-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.notes-list{grid-template-columns:repeat(2,minmax(0,1fr))}}@media(max-width:370px){.shell{padding-left:16px;padding-right:16px}.question-card{padding:17px}.trainer-top{gap:4px}.select-card b{font-size:15px}.hero-card strong{font-size:25px}.chip{padding:12px}.volume-row{gap:5px}.volume-row .text-button{padding:8px 0}}
:is(h1,h2){word-break:keep-all;overflow-wrap:break-word}
.notation-hint{font-size:12px;line-height:1.8;background:#e2ecd980;border-left:3px solid #72956e;border-radius:6px;padding:10px 12px;margin:12px 0 18px;word-break:keep-all}