*{box-sizing:border-box}body{margin:0;background:#f6f7f8;color:#17211f;font-family:PingFang TC,Heiti TC,Microsoft JhengHei,Arial,sans-serif}button,input,select,textarea{font:inherit}button{border:0;cursor:pointer}button:disabled{cursor:not-allowed;opacity:.45}.app-shell{min-height:100vh;display:grid;grid-template-columns:248px 1fr}.sidebar{background:#173b35;color:#f7fffc;padding:20px 16px;display:flex;flex-direction:column;gap:18px}.brand{display:flex;flex-direction:column;gap:4px}.brand-title{font-size:19px;font-weight:800}.brand-subtitle{color:#b8d7cf;font-size:12px;line-height:1.5}.user-box{border:1px solid rgba(255,255,255,.14);border-radius:8px;padding:10px;background:#ffffff0f}.user-name{font-weight:800}.user-role{margin-top:3px;color:#b8d7cf;font-size:12px}.nav{display:flex;flex-direction:column;gap:6px}.nav button{background:transparent;color:#cce5df;text-align:left;padding:10px 12px;border-radius:6px;font-weight:700}.nav button.active,.nav button:hover{background:#f7fffc;color:#173b35}.logout{margin-top:auto;color:#173b35;background:#d8f3eb;border-radius:6px;padding:10px;font-weight:800}.main{padding:22px;overflow:auto}.toolbar{display:flex;gap:10px;align-items:center;justify-content:space-between;margin-bottom:16px}.toolbar h1{margin:0;font-size:22px}.muted{color:#63716d;font-size:13px}.panel{background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:14px}.panel h1,.panel h2{margin:0}.panel h2{font-size:16px}.grid{display:grid;gap:12px}.grid.two{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.songs-layout{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:14px;align-items:start}.adaptation-shell{display:grid;gap:14px}.adaptation-header{background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:14px;display:flex;justify-content:space-between;gap:14px;align-items:center}.adaptation-header h1{margin:0 0 4px;font-size:22px}.phase-tabs{background:#edf2f0;border-radius:8px;padding:4px;display:flex;gap:4px}.phase-tabs button{min-width:86px;border-radius:6px;padding:9px 12px;background:transparent;color:#30413d;font-weight:900}.phase-tabs button.active{background:#147c70;color:#fff}.step-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px}.step-item{background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:12px;display:grid;grid-template-columns:34px minmax(0,1fr);gap:10px;align-items:center}.step-item.active{border-color:#147c70;box-shadow:0 0 0 2px #147c701a}.step-number{width:34px;height:34px;border-radius:50%;background:#e5f3ef;color:#17675e;display:grid;place-items:center;font-weight:900}.step-item.active .step-number{background:#147c70;color:#fff}.adaptation-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,.85fr);gap:14px;align-items:start}.recommendation-list{display:grid;gap:8px}.recommendation-row{border:1px solid #dce3e0;border-radius:8px;padding:12px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;align-items:center}.recommendation-actions{display:grid;gap:8px;justify-items:end}.score{color:#147c70;font-size:22px;font-weight:900}.field{display:flex;flex-direction:column;gap:5px}.field label{color:#465450;font-size:12px;font-weight:800}.field input,.field select,.field textarea{border:1px solid #cfd8d4;border-radius:6px;padding:9px 10px;background:#fff;color:#17211f}.field textarea{min-height:120px;resize:vertical;line-height:1.55}.search-row{display:grid;grid-template-columns:minmax(220px,1fr) 160px;gap:8px;margin-bottom:12px}.song-list{display:flex;flex-direction:column;gap:8px;max-height:calc(100vh - 184px);overflow:auto;padding-right:4px}.song-card{text-align:left;background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:12px;display:grid;gap:8px}.song-card.selected{border-color:#147c70;box-shadow:0 0 0 2px #147c701f}.song-title-row{display:flex;gap:8px;justify-content:space-between;align-items:flex-start}.song-title{font-weight:900;font-size:16px}.badge-row{display:flex;flex-wrap:wrap;gap:5px}.badge{background:#eef5f2;color:#31504a;border-radius:5px;padding:3px 6px;font-size:11px;font-weight:800}.badge.meter{background:#edf0ef;color:#30413d}.badge.meter-triple{background:#fff3cd;color:#7a5200;border:1px solid #f1d27a}.metrics{display:flex;flex-wrap:wrap;gap:5px;color:#52615d;font-size:12px}.primary,.secondary,.danger,.ghost{border-radius:6px;padding:9px 12px;font-weight:800}.primary{background:#147c70;color:#fff}.secondary{background:#e5f3ef;color:#17675e}.danger{background:#fae9e7;color:#a13225}.ghost{background:#edf0ef;color:#30413d}.button-row{display:flex;gap:8px;flex-wrap:wrap;align-items:center}.sheet-preview{display:grid;grid-template-columns:1fr 1fr;border:1px solid #dce3e0;border-radius:8px;overflow:hidden;background:#fff}.sheet-column{min-height:220px;padding:12px;white-space:pre-wrap;line-height:1.75}.sheet-column:first-child{background:#f8fbfa;border-right:1px solid #dce3e0;color:#0f766e;font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;font-weight:800}.plan-card,.log-row,.student-row{border:1px solid #dce3e0;border-radius:8px;padding:12px;background:#fff}.plan-card{display:grid;gap:8px}.song-picker{border:1px solid #dce3e0;border-radius:8px;padding:12px;background:#f8fbfa;display:grid;gap:12px}.form-section{border:1px solid #dce3e0;border-radius:8px;padding:12px;display:grid;gap:12px;background:#fbfdfc}.notice{border:1px solid #b9e3d8;border-radius:8px;padding:10px 12px;background:#f0fdfa;color:#17675e;font-weight:800;font-size:13px}.soap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.song-picker-header{display:flex;justify-content:space-between;gap:12px;align-items:center}.song-picker-title{font-size:14px;font-weight:900}.song-picker-column{background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:10px;display:grid;gap:10px;min-height:260px;align-content:start}.song-picker-column.selected{background:#fbfdfc}.compact-song-list,.selected-song-list{display:grid;gap:8px;max-height:360px;overflow:auto;padding-right:3px}.compact-song-row,.selected-song-row{border:1px solid #edf1ef;border-radius:7px;padding:9px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:8px;align-items:center}.selected-song-row{grid-template-columns:28px minmax(0,1fr) auto;align-items:start}.selected-song-row.dragging{opacity:.55;border-color:#147c70;background:#f0fdfa}.song-order-group{display:grid;gap:6px;justify-items:center}.song-drag-handle{width:28px;height:24px;border:1px solid #cfd8d4;border-radius:6px;color:#52615d;background:#fff;display:grid;place-items:center;font-weight:900;cursor:grab;-webkit-user-select:none;user-select:none}.song-drag-handle:active{cursor:grabbing}.song-order{width:28px;height:28px;border-radius:50%;background:#e5f3ef;color:#17675e;display:grid;place-items:center;font-weight:900;font-size:12px}.selected-song-fields{display:grid;gap:6px}.selected-song-fields input,.selected-song-fields textarea{width:100%;border:1px solid #cfd8d4;border-radius:6px;padding:7px 8px;background:#fff}.selected-song-fields textarea{min-height:70px;resize:vertical;line-height:1.45}.song-actions{display:grid;gap:6px}.song-actions button{padding:7px 9px}.plan-song-list{display:grid;gap:8px}.plan-song-line{border:1px solid #edf1ef;border-radius:7px;padding:9px;display:grid;gap:4px}.share-box,.version-list{border:1px solid #edf1ef;border-radius:8px;padding:10px;background:#fbfdfc;display:grid;gap:8px}.version-row{border-top:1px solid #edf1ef;padding-top:8px;display:grid;gap:3px}.feedback-list{background:#f8fbfa;border:1px solid #dce3e0;border-radius:8px;padding:10px;display:grid;gap:8px}.feedback-row{background:#fff;border:1px solid #edf1ef;border-radius:7px;padding:9px;display:grid;gap:4px}.log-row{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.login-page{min-height:100vh;display:grid;place-items:center;padding:20px;background:#edf2f0}.login-card{width:min(420px,100%);background:#fff;border:1px solid #dce3e0;border-radius:8px;padding:22px;display:grid;gap:14px}.login-card h1{margin:0;font-size:22px}.error{color:#a13225;font-size:13px;font-weight:800}@media(max-width:980px){.app-shell{grid-template-columns:1fr}.sidebar{position:static}.songs-layout,.adaptation-grid,.step-summary,.soap-grid,.grid.two,.grid.three,.sheet-preview{grid-template-columns:1fr}.adaptation-header{align-items:stretch;flex-direction:column}.phase-tabs{overflow:auto}.song-list{max-height:none}}