:root{--ink:#172c46;--muted:#65738b;--paper:#f7f3eb;--accent:#e8c99c;--line:#e5ded3;--red:#a12d3f}*{box-sizing:border-box}body{background:var(--paper);color:var(--ink);font-family:Segoe UI,Arial,sans-serif}.page-container{width:100%;max-width:1550px;margin-inline:auto;padding-inline:4%}header{border-bottom:1px solid var(--line);background:#f8f4ec}.header-content{height:128px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-family:Georgia,serif;font-size:32px;font-weight:700;display:flex;align-items:center;gap:20px;letter-spacing:-.6px;color:var(--ink);text-decoration:none}.brand-icon{display:grid;place-items:center;background:#fffdf9;color:var(--red);border:1px solid #e3d9c9;border-radius:12px;width:58px;height:58px;font-size:43px;box-shadow:0 3px 10px #44351e0d;flex-shrink:0}.brand small{display:block;font-family:Segoe UI,sans-serif;font-size:13px;letter-spacing:0;font-weight:400;color:var(--muted);margin-top:7px}.professor-logo{width:115px;height:110px;object-fit:contain}.workspace{padding-top:28px;padding-bottom:20px}.panel{background:#fffefa;border:1px solid var(--line);border-radius:15px;padding:21px}.section-label{display:flex;align-items:center;gap:10px;margin:0 0 16px;font-family:Georgia,serif;font-size:18px;font-weight:700;float:none;width:auto}.section-label h2{font:inherit;margin:0}.section-label>span{font:600 12px Segoe UI,sans-serif;display:grid;place-items:center;width:23px;height:23px;border-radius:50%;color:white;background:var(--red)}.control-section{border-top:1px dashed var(--line);padding-top:20px;margin-top:21px}.dropzone{position:relative;border:2px dashed var(--red);border-radius:11px;background:#f4e4e5;display:flex;align-items:center;flex-direction:column;padding:23px 12px;cursor:pointer;gap:7px;text-align:center;margin:0;transition:background .15s,border-color .15s}.dropzone:hover,.dropzone.drag-over{background:#ecd5d8;border-color:#7d192b}.dropzone:focus-visible,.dropzone:focus-within{outline:3px solid #a12d3f55;outline-offset:4px}.dropzone[aria-disabled="true"]{opacity:.65;pointer-events:none}.dropzone strong{font-size:14px}.dropzone>span:not(.upload-icon){font-size:12px;color:var(--muted);line-height:1.5}.upload-icon{font-size:31px;font-weight:600;line-height:1.3;color:var(--red)}.dropzone small{font-size:11px;max-width:100%;overflow-wrap:anywhere;color:var(--muted)}.btn{font-size:13px;font-weight:600;border-radius:8px;padding:12px 16px}.btn-accent{background:var(--accent);border:1px solid #dbbb8d;color:var(--ink)}.btn-accent:hover{background:#ddb882;border-color:#c9a36e}.btn-accent span{margin-left:14px}.form-label{font-size:12px;font-weight:600}.form-control{font-size:13px;border-color:#dfd5c5;padding:10px;border-radius:8px}.form-control:focus{border-color:#b35a68;box-shadow:0 0 0 .2rem #a12d3f15}.form-text{font-size:11px;color:var(--muted);line-height:1.6;margin-top:7px}.clef-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}.clef-card{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;min-height:76px;border:1px solid #e5d7c6;border-radius:10px;background:#fffefa;cursor:pointer;font-size:13px;color:var(--muted);padding:8px 4px}.clef-card:hover{background:#faf1ec;border-color:#be8a84}.clef-card:has(input:checked){background:#f4e4e5;border-color:var(--red);color:#a12d3f}.clef-card:has(input:focus-visible){outline:3px solid #a12d3f55;outline-offset:2px}.clef-symbol{display:flex;align-items:center;justify-content:center;height:31px;min-width:30px}.clef-symbol img{height:28px;width:29px;object-fit:contain}.clef-card:nth-child(3) img{height:22px}.clef-card:nth-child(4) img,.clef-card:nth-child(5) img{height:25px}.original-symbol{font-size:27px;color:var(--ink)}.octave-clef{position:relative;padding-bottom:3px}.octave-clef img{height:26px}.octave-clef small{position:absolute;bottom:-3px;font-size:9px;color:var(--ink)}.interval-box{display:flex;flex-direction:column;background:#f6eee1;border-radius:9px;padding:13px 15px;margin:15px 0;gap:3px}.interval-box>span{font-size:9px;letter-spacing:1px;color:#897557}.interval-box strong{font-size:28px;letter-spacing:-1px}.interval-box strong small{font-size:13px;font-weight:400;letter-spacing:0}.presets{display:grid;gap:7px}.presets button{border:1px solid var(--line);padding:10px;background:transparent;text-align:left;border-radius:7px;font-size:11px;color:var(--muted)}.presets button:hover{background:#f7eee3}.presets b{float:right;background:#f1e8da;padding:1px 6px;border-radius:4px;color:#806b49}.preview-panel{min-height:680px;padding:0;overflow:hidden}.preview-toolbar{display:flex;justify-content:space-between;padding:22px;gap:15px;border-bottom:1px solid var(--line);align-items:center}.eyebrow{font-size:10px;letter-spacing:1.4px;font-weight:700;color:#8d7654}.preview-toolbar h2{font-size:17px;margin:6px 0 0;overflow-wrap:anywhere}.view-tabs{display:flex;background:#f2eee5;padding:4px;border-radius:9px;flex-shrink:0}.view-tabs button{background:transparent;border:0;padding:8px 13px;border-radius:6px;color:var(--muted);font-size:12px}.view-tabs .active{background:white;box-shadow:0 1px 4px #1a362218;color:var(--ink)}.empty-state{text-align:center;padding:150px 15px 110px}.staff-art{font-family:Georgia,serif;font-size:75px;color:#c6b99e;margin:0 auto 28px;max-width:300px;line-height:1.2;background:repeating-linear-gradient(to bottom,transparent 0,transparent 17px,#e5ded3 18px,transparent 19px)}.staff-art span{font-size:38px;letter-spacing:8px}.empty-state h3{font-size:21px;font-weight:500}.empty-state p{font-size:13px;color:var(--muted);line-height:1.8}.progress-area{background:#f7efe2;padding:17px 22px;font-size:13px}progress{width:100%;height:7px;accent-color:var(--red)}.download-area{display:flex;align-items:center;justify-content:space-between;gap:15px;padding:17px 22px;background:#faf3e7;border-bottom:1px solid var(--line)}.download-area p{margin:0;font-size:14px;font-weight:500}.download-area .btn{white-space:nowrap}.score-pages{background:#ebe7df;padding:24px;max-height:1100px;overflow-y:auto;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));align-items:start;gap:20px}.page-card{margin:0}.page-card img{width:100%;box-shadow:0 4px 16px #18392a16;background:white}.page-card figcaption{font-size:11px;padding:9px 0;text-align:center;color:var(--muted)}footer{display:flex;justify-content:space-between;margin-top:26px;font-size:10px;color:#8a7f6c;letter-spacing:1px}footer span{letter-spacing:0}[hidden]{display:none!important}@media(min-width:1550px){.page-container{padding-inline:62px}}@media(max-width:1000px){.brand{gap:13px}.preview-toolbar{align-items:flex-start;flex-direction:column}.empty-state{padding-top:100px}}@media(max-width:600px){.page-container{padding-inline:5%}.header-content{height:105px;gap:10px}.brand{font-size:25px;gap:10px}.brand-icon{width:42px;height:50px;font-size:34px}.brand small{font-size:10px;max-width:185px;line-height:1.5}.professor-logo{width:75px;height:90px}.workspace{padding-top:20px}.preview-panel{min-height:480px}.score-pages{grid-template-columns:1fr;padding:15px}.empty-state{padding:80px 15px}.download-area{align-items:flex-start;flex-direction:column}.download-area .btn{width:100%}}
fieldset.control-section{border:0;padding:0;margin-top:21px}fieldset.control-section legend{width:100%;border-top:1px dashed var(--line);padding-top:20px}
.download-actions{display:flex;align-items:center;gap:10px}.btn-clear{background:#fffefa;border:1px solid #d9cbb8;color:var(--ink);white-space:nowrap}.btn-clear:hover{background:#f1e7da;border-color:#b7a489}@media(max-width:600px){.download-actions{width:100%;flex-direction:column}.download-actions .btn{width:100%}}
