@font-face{font-family:Bravura;src:url(/assets/Bravura-CBWYXOFh.woff2) format("woff2");font-display:block}*{margin:0;padding:0;box-sizing:border-box;-webkit-tap-highlight-color:transparent;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}html,body,#root{width:100%;height:100%;overflow:hidden;touch-action:manipulation}body{font-family:Hiragino Sans,Hiragino Kaku Gothic ProN,Noto Sans JP,sans-serif;background:#fff8f0;color:#333}.app{width:100vw;height:100vh;display:flex;flex-direction:column;background:#fff8f0;overflow:hidden}.menu-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:20px;padding:40px;background:url(/background.png) center center / cover no-repeat;position:relative}.menu-screen:before{content:"";position:absolute;inset:0;background:#fff8f080;pointer-events:none}.menu-logo{width:min(90vw,500px);height:auto;object-fit:contain;position:relative}.menu-screen>*{position:relative}.menu-subtitle{font-size:1.4rem;color:#666;font-weight:600;margin-bottom:20px;text-shadow:0 1px 2px rgba(255,255,255,.8)}.song-list{display:flex;flex-direction:column;gap:16px;width:100%;max-width:400px}.song-button{display:flex;align-items:center;gap:16px;padding:20px 30px;font-size:1.5rem;background:#fff;border:3px solid #FFD700;border-radius:16px;cursor:pointer;transition:transform .1s,box-shadow .1s;color:#333}.song-button:active{transform:scale(.97);box-shadow:0 2px 8px #00000026}.song-icon{font-size:2rem}.level-select-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;padding:40px}.level-title{font-size:2.2rem;color:#333}.level-subtitle{font-size:1.2rem;color:#888;margin-bottom:16px}.level-list{display:flex;gap:20px}.level-button{display:flex;flex-direction:column;align-items:center;gap:8px;padding:24px 36px;font-size:1.2rem;border:3px solid #DDD;border-radius:16px;cursor:pointer;background:#fff;transition:transform .1s;color:#333}.level-button:active{transform:scale(.95)}.level-1{border-color:#81c784}.level-2{border-color:#ffb74d}.level-3{border-color:#e57373}.level-stars{font-size:1.8rem;letter-spacing:4px}.back-button{margin-top:24px;padding:12px 32px;font-size:1.1rem;background:#eee;border:none;border-radius:12px;cursor:pointer;color:#666}.game-screen{display:flex;flex-direction:column;height:100%;position:relative}.game-header{display:flex;align-items:center;padding:8px 16px;gap:16px;background:#fff;border-bottom:1px solid #EEE;min-height:44px}.back-button-small{width:36px;height:36px;border-radius:50%;border:none;background:#eee;font-size:1.2rem;cursor:pointer;display:flex;align-items:center;justify-content:center;color:#666}.game-title{font-size:1.1rem;font-weight:600;color:#333}.input-prompt{margin-left:auto;font-size:1.1rem;color:#ff6b6b;font-weight:600;animation:pulse .8s ease-in-out infinite alternate}@keyframes pulse{0%{opacity:.6}to{opacity:1}}.tap-to-start{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:24px;cursor:pointer}.tap-to-start h2{font-size:2.5rem;color:#333}.start-instruction{font-size:1.5rem;color:#ff6b6b;animation:pulse 1s ease-in-out infinite alternate}.countdown-overlay{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);z-index:10;pointer-events:none}.countdown-number{font-size:6rem;font-weight:900;color:#ff6b6b;text-shadow:0 4px 12px rgba(255,107,107,.3);animation:countPop .5s ease-out}@keyframes countPop{0%{transform:scale(1.5);opacity:0}50%{transform:scale(1);opacity:1}to{transform:scale(1);opacity:1}}.note-staff{flex:1;min-height:0;background:#fff8f0;position:relative}.note-staff canvas{display:block}.piano-keyboard{width:100%;height:clamp(180px,38vw,50vh);background:#2c2c2c;padding:12px 6px 20px;position:relative;flex-shrink:0}.piano-keys-container{position:relative;width:100%;height:100%}.piano-key{position:absolute;top:0;border:none;cursor:pointer;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;padding-bottom:10px;transition:background .05s}.white-key{height:100%;background:linear-gradient(to bottom,#fff 85%,#eee);border-radius:0 0 8px 8px;border:1px solid #CCC;z-index:1}.white-key:active,.white-key.highlighted{background:linear-gradient(to bottom,#e8f5e9 85%,#c8e6c9)}.white-key.middle-c{border-bottom:3px solid #FF6B6B}.middle-c-dot{width:8px;height:8px;border-radius:50%;background:#ff6b6b;margin-top:4px}.key-label{font-size:.9rem;color:#999;font-weight:500;pointer-events:none}.black-key{height:54%;background:linear-gradient(to bottom,#333 80%,#111);border-radius:0 0 5px 5px;z-index:2}.black-key:active,.black-key.highlighted{background:linear-gradient(to bottom,#555 80%,#333)}.result-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;height:100%;gap:16px;padding:40px}.result-song-title{font-size:1.6rem;color:#555}.result-stars{font-size:4rem;letter-spacing:8px;color:gold;animation:starBounce .6s ease-out}@keyframes starBounce{0%{transform:scale(.5);opacity:0}60%{transform:scale(1.2)}to{transform:scale(1);opacity:1}}.result-message{font-size:1.8rem;color:#ff6b6b;font-weight:600}.result-details{display:flex;gap:32px;margin:16px 0}.result-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:16px 24px;background:#fff;border-radius:12px;border:2px solid #EEE}.result-score{border-color:gold}.result-label{font-size:1rem;color:#888}.result-value{font-size:1.6rem;font-weight:700;color:#333}.result-buttons{display:flex;gap:16px;margin-top:20px}.retry-button{padding:16px 40px;font-size:1.3rem;background:#ff6b6b;color:#fff;border:none;border-radius:14px;cursor:pointer;font-weight:600}.retry-button:active{transform:scale(.97)}.menu-button-result{padding:16px 40px;font-size:1.3rem;background:#eee;color:#666;border:none;border-radius:14px;cursor:pointer}