@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Playfair+Display:wght@400;500;600&display=swap');
:root{--ink:#183d39;--green:#215a4e;--cream:#f7f6f0;--line:#dedfd5;--gold:#e7ad49;--muted:#727b70}*{box-sizing:border-box}body{margin:0;background:var(--cream);color:var(--ink);font:15px 'DM Sans',Segoe UI,sans-serif}button,input,select,textarea{font:inherit}button,a,input,select,textarea{outline-offset:4px}button{cursor:pointer;border:1px solid var(--line);background:white;color:var(--ink);padding:10px 14px;border-radius:6px}button:hover{border-color:var(--green);background:#f0f3ec}button.active{background:var(--green);color:white}button:disabled{opacity:.4;cursor:default}a{color:inherit}aside{width:238px;background:#edf0e6;position:fixed;top:0;bottom:0;padding:35px 22px;overflow:auto;border-right:1px solid var(--line)}.brand{font:38px 'Playfair Display',Georgia,serif;text-decoration:none;display:block}.brand span{font:10px 'DM Sans',sans-serif;letter-spacing:2px;display:block;margin-top:8px}.eyebrow{font-size:10px;letter-spacing:1.8px;font-weight:700}aside>.eyebrow{margin-top:48px;color:var(--muted)}nav button{background:none;border:0;display:flex;gap:12px;width:100%;text-align:left;margin:4px 0;padding:12px 9px;font-size:12px;align-items:center}nav button span{font-size:10px;opacity:.7}nav button.selected{background:var(--green);color:white}.aside-bottom{margin-top:30px;font-size:12px}.aside-bottom small{display:block;margin:9px 0 20px;color:var(--muted)}.aside-bottom button,.import{font-size:11px;display:block;margin:8px 0}.import{cursor:pointer;text-decoration:underline}.import input{display:none}main{margin-left:238px;padding:32px 38px 150px;max-width:1900px}header{display:flex;justify-content:space-between;gap:20px;align-items:center}h1{font:27px 'Playfair Display',Georgia,serif;margin:10px 0 24px}header button{font-size:12px;white-space:nowrap}header button span{padding:3px 7px;border-radius:20px;background:#eceee5;margin-left:5px}.intro{background:#e4eadb;border:1px solid #d8dfcf;border-radius:10px;padding:28px 32px;display:flex;justify-content:space-between;gap:30px;margin:8px 0 26px}.tag{font-size:9px;letter-spacing:1.6px;border:1px solid #a5b59a;padding:4px 7px;border-radius:4px}h2{font:26px 'Playfair Display',Georgia,serif;margin:15px 0 12px}.intro p{max-width:600px;color:#536453;line-height:1.6}.routine{min-width:190px;display:flex;flex-direction:column;justify-content:center;gap:12px;font-size:12px}.routine small{font-size:10px;color:var(--muted);padding-top:6px}.toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px}.toolbar>div{display:flex;align-items:center;gap:8px}.toolbar label{font-size:12px;white-space:nowrap}input,select,textarea{background:white;color:var(--ink);border:1px solid var(--line);border-radius:5px;padding:10px;max-width:100%}textarea{width:100%;resize:vertical;line-height:1.6}#pageNumber{width:65px;padding:8px}#pdfPage{font-size:10px;color:var(--muted)}#search{width:230px}#done{font-size:12px}.workspace{display:grid;grid-template-columns:minmax(340px,1.04fr) minmax(370px,1fr);gap:24px;align-items:start}.book,.study{background:white;border:1px solid var(--line);border-radius:9px;overflow:hidden}.bookhead{display:flex;justify-content:space-between;padding:16px 20px;font-size:10px;letter-spacing:1px;border-bottom:1px solid var(--line)}.bookhead a{font-size:10px;letter-spacing:0}#pageCanvas{position:relative}#pageImage{width:100%;display:block}.hotspot{position:absolute;transform:translate(-10px,-8px);background:var(--gold);box-shadow:0 2px 6px #0003;color:#26382b;border:2px solid white;font-weight:700;padding:5px 7px;font-size:11px;border-radius:30px}.caption{font-size:10px;color:var(--muted);padding:0 18px}.tabs{display:flex;border-bottom:1px solid var(--line);padding:9px;gap:4px}.tabs button{flex:1;font-size:12px;border:0}.panel{padding:22px}.panel h2{font-size:25px;margin-top:8px}.muted{font-size:12px;color:var(--muted);line-height:1.7}.track{border:1px solid var(--line);border-radius:8px;padding:14px;display:flex;gap:13px;align-items:center;margin:12px 0}.track>button{border:0;background:#e8eee1;border-radius:50%;width:40px;height:40px;padding:0;flex-shrink:0}.track div{flex:1}.track strong{font-size:13px;display:block}.track small{font-size:10px;color:var(--muted);display:block;margin-top:6px}.tip{margin-top:26px;background:#f3f3eb;padding:20px;border-radius:7px;font-size:12px;line-height:1.7}.tip button{font-size:11px}.speech-controls{display:flex;gap:5px;flex-wrap:wrap;margin:20px 0 12px}.speech-controls button,.speech-controls select{font-size:11px;padding:8px}.speed{font-size:11px;display:flex;align-items:center;gap:8px}.voice-row{display:flex;gap:6px;margin:12px 0}.voice-row select{width:50%;font-size:10px}.text-columns{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px}.text-columns h3{font-size:10px;letter-spacing:1.2px;color:var(--muted)}.text-block{font-size:13px;line-height:1.8;padding:8px;border-bottom:1px solid #efefe8;cursor:pointer;white-space:pre-wrap}.text-block:hover,.text-block.speaking{background:#edf2e5}.text-columns article{min-width:0}.panel h3{font-size:13px;margin-top:28px}.lesson-card{background:#edf2e5;padding:16px;border-radius:7px;line-height:1.8;font-size:13px}.answer{display:block;width:100%;text-align:left;margin:8px 0;font-size:13px}#quizFeedback,#speechStatus{font-size:12px;line-height:1.6;margin:10px 0}#wordFr,#wordEn{width:48%;font-size:12px;margin-bottom:8px}.flashcard{padding:12px;border:1px solid var(--line);margin-top:8px;display:flex;justify-content:space-between;align-items:center;font-size:13px}.flashcard button{padding:4px 8px;font-size:11px}#player{position:fixed;bottom:0;left:238px;right:0;background:#193f38;color:white;z-index:10;display:flex;align-items:center;gap:10px;padding:15px 24px;box-shadow:0 -5px 24px #0001}#player[hidden]{display:none}#player>div{max-width:250px;min-width:170px}#player b{display:block;font-size:12px;margin:5px 0}#player .eyebrow{color:#c7d6b6}#player button,#player select{background:#ffffff12;border-color:#ffffff30;color:white;font-size:11px;padding:8px}#player select option{color:#183d39}#player audio{width:100%;min-width:160px;height:36px}#returnToTrack{border:0!important;padding:0!important;font-size:10px!important}.dialog-head{display:flex;justify-content:space-between;align-items:center}dialog{border:1px solid var(--line);border-radius:12px;padding:25px;width:650px;max-width:95vw;color:var(--ink);max-height:85vh}dialog::backdrop{background:#10282099}#trackFilter{width:100%}#searchResults{background:white;padding:15px;margin-bottom:20px;max-height:350px;overflow:auto}#searchResults button{margin:4px;font-size:12px}#progress{font-weight:600}#flashcards{margin-top:16px}#lesson p{margin:8px 0}.empty{padding:30px 10px;font-size:13px;color:var(--muted);line-height:1.8}
@media(min-width:1600px){.workspace{grid-template-columns:1fr 1fr}.panel{padding:30px}}@media(max-width:1100px){aside{width:195px;padding:25px 14px}main{margin-left:195px;padding:25px 20px 160px}#player{left:195px;flex-wrap:wrap}.workspace{grid-template-columns:1fr}.book{max-width:750px}.toolbar{flex-wrap:wrap}.intro{padding:22px}.routine{display:none}}@media(max-width:650px){aside{position:relative;width:100%;padding:18px}.brand{font-size:29px}aside>.eyebrow,.aside-bottom{display:none}nav{display:flex;overflow:auto;margin-top:15px}nav button{min-width:155px}main{margin:0;padding:22px 14px 200px}h1{font-size:24px}header{align-items:flex-start}header button{font-size:10px;padding:8px}header .eyebrow{font-size:8px}.intro h2{font-size:27px}.intro p{font-size:13px}.toolbar #search{width:100%}.toolbar{gap:10px}#pdfPage{display:none}.workspace{display:block}.study{margin-top:20px}.panel{padding:16px}.text-columns{gap:8px}.text-block{font-size:12px;padding:5px}#player{left:0;padding:12px;gap:7px}#player>div{max-width:none;min-width:0;flex:1}#player audio{order:2;width:100%}#player .eyebrow{font-size:8px}.voice-row{flex-direction:column}.voice-row select{width:100%}}