@font-face{font-family:Albert;src:url('assets/albert.ttf') format('truetype');font-display:swap}
:root{color-scheme:light;--teal:#087f8c;--ink:#23323d;--line:#d2e1e5;--pale:#eef7f8}
*{box-sizing:border-box}body{margin:0;background:#fff;color:var(--ink);font-family:Albert,Tahoma,sans-serif;line-height:1.8}button,input,textarea{font:inherit}button,.file-button{cursor:pointer}button:disabled{cursor:default;opacity:.5}button:focus-visible,input:focus-visible,textarea:focus-visible,.file-button:focus-within{outline:3px solid #f0ba42;outline-offset:4px}button{border:0}main{max-width:940px;margin:auto;padding:28px 24px 40px}.top{border-top:7px solid var(--teal);border-bottom:1px solid var(--line)}.top-inner{max-width:940px;margin:auto;padding:15px 24px;display:flex;justify-content:space-between;gap:16px;color:var(--teal);font-size:19px}.grade{color:#596b77;font-size:16px}.lesson-heading{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:24px}.eyebrow{font-size:14px;color:#627581;margin:0 0 5px}h1{font-size:clamp(28px,5vw,40px);line-height:1.5;margin:0}h2{font-size:23px;color:var(--teal);margin:0 0 6px}.secondary{background:#fff;border:1px solid var(--line);padding:8px 16px;border-radius:10px;color:var(--teal);min-height:44px;white-space:nowrap;font-size:16px}.player{position:sticky;top:8px;z-index:5;display:flex;align-items:center;gap:17px;padding:17px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.98);box-shadow:0 5px 18px #173c4810}.play,.file-button{background:var(--teal);border-radius:10px;color:white;padding:11px 21px;min-height:48px;font-size:18px;white-space:nowrap}.transport{flex:1;min-width:0}.transport input{accent-color:var(--teal);width:100%;display:block;direction:ltr;height:26px}.time{display:flex;direction:ltr;justify-content:space-between;color:#5b717c;font-size:13px;line-height:1.3}.audio-message{font-size:15px;margin:10px 3px;color:#586e79}.setup{background:#f4f7f9;border:1px dashed #a9c3ca;border-radius:12px;padding:17px 20px;display:flex;align-items:center;gap:16px;justify-content:space-between;margin:16px 0 24px;font-size:16px}.setup p{margin:3px 0;color:#586e79;max-width:480px}.setup-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.file-button{display:inline-flex;align-items:center;position:relative;font-size:16px}.file-button input{position:absolute;inset:0;opacity:0;width:100%;cursor:pointer}.idea{background:var(--pale);padding:18px 23px;border-radius:12px;font-size:23px;margin:24px 0 16px}.pictures{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;border:1px solid var(--line);border-radius:14px;padding:22px 18px;margin-bottom:24px}figure{margin:0;text-align:center;min-width:0}figure img{display:block;width:100%;height:190px;object-fit:contain}figcaption{font-size:18px;margin-top:9px}.cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.card{border:1px solid var(--line);border-radius:14px;padding:20px 23px;scroll-margin-top:140px}.card p,.note p,.question p{font-size:21px;margin:0;white-space:pre-line;line-height:1.95}.note{background:var(--pale);margin-top:20px;padding:19px 23px;border-radius:12px}.question{border-top:1px solid var(--line);margin-top:25px;padding:20px 4px}.reading-block{transition:background .2s,outline-color .2s}.reading-block.is-reading{background:#fff7da;outline:3px solid #e7ba4c;outline-offset:2px}footer{font-size:13px;color:#637780;text-align:center;border-top:1px solid var(--line);padding-top:18px;margin-top:20px}dialog{max-width:940px;width:calc(100% - 30px);max-height:90vh;border:1px solid var(--line);border-radius:15px;padding:22px;color:var(--ink);background:#fff}dialog::backdrop{background:#132e3b99}.dialog-header{display:flex;justify-content:space-between;align-items:center;gap:15px;margin-bottom:18px}.original-page{display:block;width:100%;height:auto}textarea{width:100%;min-height:330px;resize:vertical;border:1px solid var(--line);border-radius:8px;padding:15px;font-size:18px;line-height:1.9;margin:10px 0 16px}#copy-status{min-height:1.8em;margin:7px 0 0}body.has-audio .setup{display:none}
@media(max-width:600px){main{padding:20px 16px 30px}.top-inner{padding:12px 16px;align-items:center;font-size:18px}.grade{font-size:14px}.lesson-heading{align-items:flex-start;gap:10px}.lesson-heading .secondary{font-size:14px;padding:7px 11px;white-space:normal;max-width:110px}.eyebrow{font-size:13px}.player{flex-wrap:wrap;gap:10px;padding:12px;top:5px}.play{flex:1;font-size:18px;padding:11px 15px}.transport{order:3;flex-basis:100%}.repeat{font-size:15px}.setup{display:block;padding:16px}.setup-actions{margin-top:13px}.idea{font-size:21px;padding:16px 18px}.pictures{gap:8px;padding:17px 9px}figure img{height:135px}figcaption{font-size:15px}.cards{grid-template-columns:1fr;gap:13px}.card{padding:19px 21px}h2{font-size:23px}.card p,.note p,.question p{font-size:21px}.note{padding:18px 20px}dialog{padding:15px}.dialog-header{font-size:17px}}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
[hidden]{display:none!important}.lesson-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:24px}.lesson-link{text-align:right;border:1px solid var(--line);border-radius:14px;background:#fff;padding:20px 23px;font-size:23px;color:var(--teal);line-height:1.7}.lesson-link:hover{background:var(--pale)}.lesson-link span{display:block}.lesson-detail{font-size:15px;color:#596b77;margin-top:5px}.back{margin-bottom:18px}.lesson-nav{display:flex;justify-content:space-between;gap:12px;margin:20px 0}.pictures.count-1{grid-template-columns:1fr}.pictures.count-2{grid-template-columns:repeat(2,minmax(0,1fr))}.pictures.count-4{grid-template-columns:repeat(4,minmax(0,1fr))}.pictures.count-5{grid-template-columns:repeat(5,minmax(0,1fr))}.pictures.count-1 img{height:auto;max-height:330px}.pictures.count-4 img,.pictures.count-5 img{height:150px}.pictures.count-4 figcaption,.pictures.count-5 figcaption{font-size:16px}#pictures>div>h2{margin:18px 4px 12px}#catalog-message:empty{display:none}@media(max-width:600px){.lesson-list{grid-template-columns:1fr;gap:12px}.lesson-link{padding:17px 20px;font-size:22px}.pictures.count-4,.pictures.count-5{grid-template-columns:repeat(2,minmax(0,1fr))}.pictures.count-4 img,.pictures.count-5 img{height:150px}.pictures.count-5 figure:last-child{grid-column:1/-1}.lesson-detail{font-size:14px}.lesson-nav .secondary{white-space:normal}}

.intro-player{display:flex;align-items:center;flex-wrap:wrap;gap:16px;border:1px solid var(--line);border-radius:14px;padding:16px 20px;margin:22px 0}.intro-duration{font-size:16px;color:#596b77}.intro-player p{flex-basis:100%;margin:0;color:#596b77;font-size:15px}@media(max-width:600px){.intro-player{padding:14px;gap:12px}}