:root{--bg:#edf1f4;--surface:#fff;--text-primary:#2c3e50;--text-muted:#89a;--text-faint:#bcc8d4;--sage:#7a9e7e;--sage-dim:#7a9e7e33;--sand:#c4956a;--sand-dim:#c4956a33;--sand-light:#dfd5c5;--shadow-sm:0 1px 3px #2c3e500a;--shadow-md:0 2px 8px #2c3e500f;--radius:12px;--radius-sm:6px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--bg);color:var(--text-primary);height:100%;font-family:Sora,system-ui,-apple-system,sans-serif}body{flex-direction:column;min-height:100%;display:flex}#root{flex-direction:column;flex:1;display:flex}button{cursor:pointer;color:inherit;background:0 0;border:none;font-family:inherit}button:disabled{opacity:.35;cursor:default}input{color:inherit;font-family:inherit}.app{flex-direction:column;flex:1;align-items:center;gap:12px;width:100%;max-width:440px;margin:0 auto;padding:32px 20px;display:flex}.app-header{text-align:center;margin-bottom:8px}.app-title{letter-spacing:.2em;text-transform:uppercase;color:var(--text-muted);font-family:Sora,sans-serif;font-size:13px;font-weight:300}.app-subtitle{letter-spacing:.15em;text-transform:uppercase;color:var(--text-faint);margin-top:2px;font-size:11px;font-weight:300}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;padding:16px 20px}.mode-selector{border-radius:var(--radius);border:1px solid var(--sand-light);gap:0;width:100%;display:flex;overflow:hidden}.mode-btn{letter-spacing:.04em;color:var(--text-muted);text-align:center;background:0 0;flex:1;padding:10px 16px;font-family:Sora,sans-serif;font-size:12px;font-weight:500;transition:background .2s,color .2s}.mode-btn:first-child{border-right:1px solid var(--sand-light)}.mode-btn.active{background:var(--sage);color:#fff}.main-display{flex-direction:column;align-items:center;gap:4px;width:100%;display:flex}.tempo-fraction{justify-content:center;align-items:center;gap:8px;padding:24px 0 8px;display:flex}.fraction-num,.fraction-den{text-align:center;width:100px;color:var(--text-primary);caret-color:var(--sage);background:0 0;border:none;outline:none;padding:0;font-family:Fraunces,serif;font-size:80px;font-weight:700;line-height:1}.fraction-num:disabled,.fraction-den:disabled{color:var(--text-primary);opacity:.5}.fraction-sep{color:var(--sand);-webkit-user-select:none;user-select:none;margin-top:-8px;font-family:Fraunces,serif;font-size:60px;font-weight:300;line-height:1}.fraction-info{text-align:center;margin-bottom:8px}.fraction-frames{color:var(--text-faint);letter-spacing:.04em;font-family:Sora,sans-serif;font-size:11px;font-style:italic;font-weight:300}.swing-arc{width:100%;max-width:340px;height:auto;margin:0 auto;display:block}@keyframes dot-fade-in{0%{r:0;opacity:0}to{opacity:1}}.tone-indicators{justify-content:center;align-items:center;gap:48px;width:100%;padding:16px 0;display:flex}.tone-dot{border:1.5px solid var(--sand-light);background:0 0;border-radius:50%;width:8px;height:8px;transition:background .25s,border-color .25s}.tone-dot.active{background:var(--sage);border-color:var(--sage)}.tone-dot.impact.active{background:var(--sand);border-color:var(--sand)}.control-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;padding:12px 20px}.control-bar{justify-content:space-between;align-items:center;width:100%;display:flex}.control-group{align-items:center;gap:10px;display:flex}.play-btn{border:1.5px solid var(--text-faint);width:44px;height:44px;color:var(--text-muted);background:0 0;border-radius:50%;justify-content:center;align-items:center;transition:background .2s,border-color .2s,color .2s;display:flex}.play-btn:hover:not(:disabled){border-color:var(--sage);color:var(--sage)}.play-btn:active:not(:disabled){transform:scale(.95)}.play-btn.playing{background:var(--sage);border-color:var(--sage);color:#fff}.volume-group{gap:6px}.vol-icon{color:var(--text-faint);flex-shrink:0}.volume-slider{appearance:none;background:var(--sand-light);cursor:pointer;border-radius:2px;outline:none;width:72px;height:3px}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;background:var(--sage);cursor:pointer;border:none;border-radius:50%;width:12px;height:12px}.volume-slider::-moz-range-thumb{background:var(--sage);cursor:pointer;border:none;border-radius:50%;width:12px;height:12px}.preset-card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow-md);width:100%;padding:12px 16px}.preset-selector{justify-content:center;gap:8px;display:flex}.preset-btn{border-radius:var(--radius-sm);letter-spacing:.02em;color:var(--text-muted);border:1px solid var(--sand-light);background:0 0;padding:6px 14px;font-family:Sora,sans-serif;font-size:12px;font-weight:500;transition:background .2s,color .2s,border-color .2s}.preset-btn:hover:not(:disabled){border-color:var(--sage);color:var(--sage)}.preset-btn.active{background:var(--sage);border-color:var(--sage);color:#fff}