:root{--bg-color:#0d0d0d;--card-bg:#141414;--text-color:#f0f0f0;--accent-pink:#ff7eb3;--accent-pink-hover:#ff9ec6;--font-mono:"Space Mono", monospace}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-color);color:var(--text-color);font-family:var(--font-mono);justify-content:center;align-items:center;min-height:100vh;padding:1rem;display:flex}#app{width:100%;max-width:900px}.synth-card{background-color:var(--card-bg);border-radius:12px;padding:2rem;position:relative;overflow:hidden;box-shadow:0 20px 40px #00000080}.audio-overlay{-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);z-index:100;background:#0d0d0dd9;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:absolute;top:0;left:0}.audio-overlay.hidden{display:none}.pulse-btn{background-color:#ff7eb31a;padding:1.5rem 3rem;font-size:1.5rem;animation:2s infinite pulse}@keyframes pulse{0%{box-shadow:0 0 #ff7eb3b3}70%{box-shadow:0 0 0 20px #ff7eb300}to{box-shadow:0 0 #ff7eb300}}.scribble-outline{pointer-events:none;z-index:10;width:100%;height:100%;position:absolute;top:0;left:0}.scribble-outline rect{fill:none;stroke:var(--accent-pink);stroke-width:3px;filter:url(#scribble-filter)}.synth-header{text-align:center;margin-bottom:1.5rem}.synth-header h1{color:var(--accent-pink);letter-spacing:2px;text-transform:uppercase;text-shadow:0 0 10px #ff7eb380;margin:0;font-family:Permanent Marker,cursive;font-size:2.5rem;display:inline-block;transform:rotate(-3deg)}.synth-header p{color:#a0a0a0;max-width:600px;margin:.5rem auto 0;padding:0 2rem;font-size:.75rem}.canvas-container{z-index:20;background:#000;border:1px solid #333;border-radius:8px;width:100%;margin-bottom:1.5rem;position:relative;overflow:hidden}canvas{cursor:crosshair;width:100%;height:auto;display:block}.controls{z-index:20;margin-bottom:2rem;position:relative}.mode-selector{z-index:20;justify-content:center;gap:1rem;margin-top:1rem;margin-bottom:2rem;display:flex;position:relative}.mode-btn{flex:1;max-width:180px}.sliders{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.slider-group{background:#0000004d;border:1px solid #222;border-radius:8px;align-items:center;gap:1rem;padding:.5rem 1rem;display:flex}.slider-group span{text-align:center;min-width:40px;font-size:1.5rem}input[type=range]{-webkit-appearance:none;background:#333;border-radius:2px;outline:none;flex:1;height:4px}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;background:var(--accent-pink);cursor:pointer;width:20px;height:20px;box-shadow:0 0 10px var(--accent-pink);border-radius:50%}button{color:var(--accent-pink);border:2px solid var(--accent-pink);font-family:var(--font-mono);cursor:pointer;text-transform:uppercase;background-color:#0000;border-radius:50px;padding:.5rem 1rem;font-size:.9rem;font-weight:700;transition:all .2s}button:hover,button.active-toggle{background-color:var(--accent-pink);color:#000}.keyboard-container{z-index:20;-webkit-user-select:none;user-select:none;justify-content:center;height:180px;display:flex;position:relative}.key{cursor:pointer;border-radius:0 0 6px 6px;transition:background-color .1s;display:inline-block;position:relative}.key.natural{width:calc(100% / var(--num-natural-keys));z-index:1;background:#1a1a1a;border:1px solid #333;border-top:none;height:100%}.key.natural:active,.key.natural.active{background:#333}.key.accidental{width:calc((100% / var(--num-natural-keys)) * .7);background:var(--accent-pink);z-index:2;border-radius:0 0 4px 4px;height:60%;position:absolute;transform:translate(-50%)}.key.accidental:active,.key.accidental.active{background:var(--accent-pink-hover)}.key-label{text-align:center;color:#666;pointer-events:none;width:100%;font-size:.7rem;position:absolute;bottom:10px}.key.accidental .key-label{color:#00000080}@media (width<=550px){.sliders{gap:.5rem}.slider-group{gap:.5rem;padding:.25rem .5rem}.slider-group span{min-width:25px;font-size:1.2rem}.synth-header h1{font-size:2rem}.synth-header p{padding:0 .5rem}.keyboard-container{height:120px}}