:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}body{margin:0;min-width:320px;min-height:100vh}#root{min-height:100vh}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}.note-staff-container{display:flex;flex-direction:column;align-items:center;padding:2rem;background:#fff;border-radius:8px;margin-bottom:2rem;box-shadow:0 2px 8px #0000001a}.note-staff{width:100%;max-width:400px;min-height:150px;display:block;visibility:visible;overflow:visible}.note-staff svg{max-width:100%;height:auto;display:block;visibility:visible}.note-staff .abcjs-container{width:100%;height:auto;visibility:visible}.note-label{margin-top:1rem;font-size:1.5rem;font-weight:700;color:#333}.piano-keyboard{width:100%;margin:0 auto;padding:2rem;overflow-x:auto;overflow-y:hidden}.piano-keys-container{position:relative;display:flex;height:200px;min-width:100%;border:2px solid #333;border-radius:4px;overflow:visible;background:#f0f0f0}.piano-key{height:100%;background:#fff;border-right:1px solid #ccc;display:flex;align-items:flex-end;justify-content:center;padding-bottom:.5rem;cursor:pointer;transition:background-color .1s;-webkit-user-select:none;user-select:none}.piano-key:last-child{border-right:none}.piano-key.pressed{background:#ddd}.piano-key.highlighted-green{background:#4caf50!important;animation:pulse-green .3s}.piano-key.highlighted-red{background:#f44336!important;animation:pulse-red .3s}.black-keys-container{position:absolute;top:0;left:0;right:0;height:120px;pointer-events:none}.black-key{position:absolute;height:120px;background:#333;border:1px solid #000;border-radius:0 0 4px 4px;display:flex;align-items:flex-end;justify-content:center;padding-bottom:.5rem;pointer-events:auto;cursor:pointer;transition:background-color .1s;z-index:1}.black-key.pressed{background:#555}.black-key.highlighted-green{background:#4caf50!important;animation:pulse-green .3s}.black-key.highlighted-red{background:#f44336!important;animation:pulse-red .3s}.key-label{font-size:.85rem;color:#666;font-weight:500;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.black-key .key-label{color:#ccc;font-size:.7rem}.black-key-label{display:flex;flex-direction:column;align-items:center;line-height:1.1;gap:.1rem}.key-label-line1{font-size:.65rem;color:#ccc;font-weight:500}.key-label-line2{font-size:.6rem;color:#ccc;font-weight:500}@media(max-width:1400px){.key-label{font-size:.7rem}.black-key .key-label{font-size:.6rem}.key-label-line1{font-size:.55rem}.key-label-line2{font-size:.5rem}}@keyframes pulse-green{0%,to{background:#4caf50}50%{background:#66bb6a}}@keyframes pulse-red{0%,to{background:#f44336}50%{background:#ef5350}}.app{min-height:100vh;display:flex;flex-direction:column;background:linear-gradient(135deg,#667eea,#764ba2);padding:2rem;padding-bottom:0}.app-header{text-align:center;margin-bottom:2rem;color:#fff}.app-header h1{margin:0 0 1rem;font-size:2.5rem;text-shadow:2px 2px 4px rgba(0,0,0,.3)}.error-message{background:#f44336;color:#fff;padding:1rem;border-radius:4px;margin:1rem auto;max-width:600px}.info-message{background:#2196f3;color:#fff;padding:1rem;border-radius:4px;margin:1rem auto;text-align:center;max-width:600px}.app-main{flex:1;display:flex;justify-content:center;align-items:center;padding-bottom:400px;transition:padding-bottom .3s ease}.app-main.keyboard-collapsed{padding-bottom:60px}.game-container{width:100%;max-width:100%;display:flex;flex-direction:column;gap:2rem}.staff-section{background:#fffffff2;border-radius:12px;padding:2rem;box-shadow:0 4px 16px #0003;text-align:center}.staff-section h2{margin:0 0 1rem;color:#333;font-size:1.5rem}.keyboard-section{position:fixed;bottom:0;left:0;right:0;background:#fffffffa;border-top:3px solid #667eea;box-shadow:0 -4px 16px #0003;overflow-x:auto;overflow-y:visible;transition:transform .3s ease,max-height .3s ease;z-index:1000;max-height:400px;padding-top:50px}.keyboard-section.expanded{transform:translateY(0);max-height:400px}.keyboard-section.collapsed{transform:translateY(calc(100% - 60px));max-height:60px;padding-top:0}.keyboard-toggle{position:absolute;top:10px;left:50%;transform:translate(-50%);background:#fffffffa;border:2px solid #667eea;border-radius:4px;padding:.5rem 2rem;font-size:1.2rem;color:#667eea;cursor:pointer;transition:all .2s ease;z-index:1001;box-shadow:0 2px 8px #00000026;min-width:80px;text-align:center;white-space:nowrap}.keyboard-section.expanded .keyboard-toggle{top:10px}.keyboard-section.collapsed .keyboard-toggle{top:10px;padding:.3rem 1.5rem;font-size:1rem}.keyboard-toggle:hover{background:#fff;color:#764ba2;box-shadow:0 -2px 12px #0003}.keyboard-toggle:hover{background:#fff;color:#764ba2}.keyboard-content{padding:2rem;transition:opacity .2s ease}.keyboard-section.collapsed .keyboard-content{opacity:0;pointer-events:none}.keyboard-section.expanded .keyboard-content{opacity:1;pointer-events:auto}.midi-selector{margin-bottom:1.5rem;text-align:center}.midi-selector label{font-weight:500;color:#333;margin-right:.5rem}.midi-selector select{padding:.5rem 1rem;border:2px solid #667eea;border-radius:4px;font-size:1rem;background:#fff;color:#333;cursor:pointer}.midi-selector select:focus{outline:none;border-color:#764ba2}@media(max-width:768px){.app{padding:1rem;padding-bottom:0}.app-header h1{font-size:1.8rem}.staff-section{padding:1rem}.app-main{padding-bottom:350px}.app-main.keyboard-collapsed{padding-bottom:50px}.keyboard-section,.keyboard-section.expanded{max-height:350px}.keyboard-content{padding:1rem}}