body{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;margin:0}code{font-family:source-code-pro,Menlo,Monaco,Consolas,Courier New,monospace}.overlay{background:rgba(0,0,0,.7);height:100%;width:100%}.overlay-text{font-size:24px}.tuning-controls{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-bottom:20px;padding:0 10px}.control-group{align-items:flex-start;display:flex;flex-direction:column;margin:5px;min-width:150px}.control-group label{color:#fff;margin-bottom:5px}.control-group select{background:#fff;border:1px solid #ccc;border-radius:4px;max-width:200px;padding:5px;width:100%}.piano{-webkit-overflow-scrolling:touch;margin:0 auto;max-width:1200px;overflow-x:auto}.keyboard{min-width:-webkit-min-content;min-width:min-content}.key{align-items:center;border:1px solid #000;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:10px;touch-action:manipulation;-webkit-user-select:none;user-select:none}.white-key{background:#fff;height:min(200px,40vh);width:min(65px,12vw)}.black-key{background:#000;color:#fff;height:min(120px,25vh);margin-left:min(-20px,-4vw);margin-right:min(-20px,-4vw);width:min(40px,8vw)}.key-binding{font-size:min(14px,3.5vw);margin-bottom:5px}.note-name{font-size:min(12px,3vw)}.black-key .key-binding,.black-key .note-name{color:#fff;text-shadow:none}.white-key .key-binding,.white-key .note-name{color:#000;text-shadow:none}.key.active{background:#ccc}.black-key.active{background:#333}@media (max-width:768px){.keyboard{padding-bottom:20px}.key{padding-bottom:5px}.white-key{min-width:45px}.black-key{min-width:30px}@media (max-width:360px){.key-binding{display:none}}}.App{height:100%;overflow:hidden;width:100%}.mobile-instruction{color:#666;display:none;font-size:14px;margin:5px 0}@media (max-width:768px){.mobile-instruction{display:block}}.App{text-align:center}.App-header{align-items:center;background-color:#282c34;color:#fff;display:flex;flex-direction:column;font-size:calc(10px + 2vmin);justify-content:center;min-height:100vh}.piano{background:#263238;border-radius:10px;box-shadow:0 0 20px rgba(0,0,0,.5);box-sizing:border-box;max-width:100%;overflow-x:hidden;padding:20px 10px;width:100%}.keyboard{--white-key-width:clamp(22px,5.35vw,60px);--black-key-width:clamp(15px,3.55vw,40px);--white-key-height:clamp(118px,38vw,200px);--black-key-height:clamp(72px,23vw,120px);display:inline-flex;margin:0 auto;max-width:100%;min-width:0;width:auto}.key,.keyboard{position:relative}.key{border:none;cursor:pointer;transition:background-color .1s}.white-key{background-color:#fff;border-radius:0 0 5px 5px;height:var(--white-key-height)!important;margin:0 clamp(1px,.35vw,2px)!important;width:var(--white-key-width)!important;z-index:1}.black-key{background-color:#000;height:var(--black-key-height)!important;margin-left:calc(var(--black-key-width)/-2)!important;margin-right:calc(var(--black-key-width)/-2)!important;position:relative;width:var(--black-key-width)!important;z-index:2}.white-key:hover{background-color:#f0f0f0}.black-key:hover{background-color:#222}.white-key:active{background-color:#e0e0e0}.black-key:active{background-color:#111}.note-name{bottom:5px;color:#666;font-size:clamp(9px,2.6vw,12px);left:50%;position:absolute;transform:translateX(-50%)}.black-key .note-name{bottom:5px;color:#fff}.octave-controls{align-items:center;display:flex;flex-wrap:wrap;gap:15px;justify-content:center;margin-top:20px}.octave-button{background-color:#4a5568;border:none;border-radius:5px;color:#fff;cursor:pointer;font-size:16px;padding:8px 16px;transition:background-color .2s}.octave-button:hover:not(:disabled){background-color:#2d3748}.octave-button:disabled{background-color:#718096;cursor:not-allowed;opacity:.7}.octave-display{font-size:18px;min-width:min(150px,100%)}.key-binding{color:#666;font-size:clamp(9px,2.6vw,12px);font-weight:700;left:50%;position:absolute;top:5px;transform:translateX(-50%)}.black-key .key-binding{color:#fff}.key.active{background-color:#4a90e2}.black-key.active,.octave-button.active{background-color:#2c3e50}.overlay{align-items:center;-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);background:rgba(0,0,0,.8);bottom:0;cursor:pointer;display:flex;justify-content:center;left:0;position:fixed;right:0;top:0;z-index:1000}.overlay-text{color:#fff;font-size:2rem;text-shadow:0 2px 4px rgba(0,0,0,.2)}.info-box{box-shadow:0 2px 4px rgba(0,0,0,.1);color:#c7c7c7;font-size:16px;margin:1rem 0;max-width:600px;padding:1rem}.info-box h3{margin-top:0}.info-box p{line-height:1.4;margin:.5rem 0;text-align:left}.info-box .note{color:#666;margin-top:1rem;text-align:center}.clickable-title{cursor:pointer;transition:color .2s}.clickable-title:hover{opacity:.8}.clickable-title:after{font-size:.8em;opacity:.7}.controls-container{align-items:center;max-width:100%}.controls-container,.music-controls{display:flex;flex-wrap:wrap;justify-content:center}.music-controls{gap:10px;margin:20px 0}.music-controls button{border:none;border-radius:4px;color:#fff;cursor:pointer;font-size:1.1em;padding:8px 20px;transition:background-color .2s;width:65px}@media (max-width:430px){.piano{border-radius:6px;padding-left:4px;padding-right:4px}.keyboard{--white-key-width:clamp(20px,5.25vw,23px);--black-key-width:clamp(14px,3.5vw,16px);--white-key-height:clamp(104px,32vw,132px);--black-key-height:clamp(64px,20vw,82px)}.octave-button{max-width:230px;width:100%}}.play-button{background-color:#4caf5000}.play-button:hover{background-color:#45a04900}.stop-button{background-color:#e74c3c00}.stop-button:hover{background-color:#c0392b00}.stop-button:disabled{background-color:#95a5a6;cursor:not-allowed}.info-box{background-color:hsla(0,0%,100%,.1);border-radius:8px;color:#fff;margin:20px auto;max-width:800px;padding:15px 20px;text-align:center}.info-box h3{font-size:1.4em;font-weight:500;margin:0 0 10px}.info-box p{font-size:1.1em;line-height:1.5;margin:8px 0}.info-box .note{color:#ccc;font-size:.9em;font-style:italic;margin-top:12px}.info-box ul{margin:10px 0;padding-left:30px;text-align:left}.info-box ul li{line-height:1.4;margin:5px 0}.tuning-tips{border-top:1px solid hsla(0,0%,100%,.1);margin-top:15px;padding-top:15px}.info-box .tip{color:#4caf50;font-style:italic;margin-top:8px}.info-box strong{color:#4caf50}@media (max-width:768px){.info-box{margin:15px;padding:12px 15px}.info-box h3{font-size:1.2em}.info-box p{font-size:1em}}.midi-input{margin:10px 0}.midi-select{background-color:#4a5568;border:1px solid #2d3748;border-radius:4px;color:#fff;font-size:14px;max-width:100%;min-width:200px;padding:8px}.midi-select:focus{border-color:#4caf50;outline:none}