:root{--binaural-bg: #030416;--binaural-primary: #7000ff;--binaural-secondary: #00f2ff;--binaural-accent: #ff00ff;--binaural-text: #ffffff;--binaural-glass: rgba(255, 255, 255, .03);--binaural-glass-border: rgba(255, 255, 255, .1);--binaural-glow: 0 0 20px rgba(112, 0, 255, .3)}.binaural-container{display:flex;flex-direction:column;gap:2rem;padding:1rem;max-width:900px;margin:0 auto}.tuner-card{background:var(--binaural-bg);border:1px solid var(--binaural-glass-border);border-radius:32px;padding:3rem;box-shadow:0 25px 50px -12px #00000080;display:flex;flex-direction:column;gap:3rem;position:relative;overflow:hidden;backdrop-filter:blur(20px)}.tuner-card:before{content:"";position:absolute;top:-10%;right:-10%;width:40%;height:40%;background:radial-gradient(circle,rgba(112,0,255,.15) 0%,transparent 70%);pointer-events:none}.tuner-card:after{content:"";position:absolute;bottom:-10%;left:-10%;width:40%;height:40%;background:radial-gradient(circle,rgba(0,242,255,.1) 0%,transparent 70%);pointer-events:none}.controls-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:3rem;z-index:1}.control-group{display:flex;flex-direction:column;gap:1.5rem}.control-header{display:flex;justify-content:space-between;align-items:flex-end}.control-label{font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:2px;color:#ffffff80}.value-display{font-size:2.5rem;font-weight:900;color:var(--binaural-text);line-height:1;text-shadow:0 0 15px rgba(255,255,255,.2)}.value-unit{font-size:1rem;font-weight:400;margin-left:.3rem;opacity:.6}input[type=range]{-webkit-appearance:none;appearance:none;width:100%;background:transparent;cursor:pointer}input[type=range]::-webkit-slider-runnable-track{height:8px;background:#ffffff0d;border-radius:4px;border:1px solid rgba(255,255,255,.1)}input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;height:24px;width:24px;background:var(--binaural-text);border-radius:50%;margin-top:-9px;box-shadow:0 0 15px #fff6;transition:all .2s ease}input[type=range]::-webkit-slider-thumb:hover{transform:scale(1.1);box-shadow:0 0 20px var(--binaural-secondary)}.beat-description{background:linear-gradient(90deg,var(--binaural-primary),var(--binaural-secondary));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;font-weight:600;font-size:1.1rem}.presets-container{display:flex;flex-direction:column;gap:1rem;align-items:center}.presets{display:flex;flex-wrap:wrap;gap:1rem;justify-content:center}.preset-btn{background:var(--binaural-glass);border:1px solid var(--binaural-glass-border);color:#ffffffb3;padding:.75rem 1.5rem;border-radius:100px;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .3s cubic-bezier(.23,1,.32,1)}.preset-btn:hover{border-color:var(--binaural-secondary);color:var(--binaural-secondary);background:#00f2ff0d}.preset-btn.active{background:var(--binaural-text);color:var(--binaural-bg);border-color:var(--binaural-text);transform:scale(1.05);box-shadow:0 0 20px #ffffff4d}.main-actions{display:flex;align-items:center;justify-content:center;gap:2.5rem;margin:1rem 0}.play-button{width:100px;height:100px;border-radius:50%;background:var(--binaural-text);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .4s cubic-bezier(.175,.885,.32,1.275);box-shadow:0 10px 30px #0000004d}.play-button svg{width:40px;height:40px;fill:var(--binaural-bg)}.play-button:hover{transform:scale(1.1);box-shadow:0 0 40px #fff6}.play-button.playing{background:var(--binaural-accent)}.play-button.playing svg{fill:#fff}.strobe-toggle{background:transparent;border:2px solid rgba(255,255,255,.1);color:#fff;padding:1rem 2rem;border-radius:100px;font-weight:700;text-transform:uppercase;letter-spacing:1px;cursor:pointer;transition:all .3s ease}.strobe-toggle:hover{border-color:var(--binaural-secondary);background:#00f2ff0d}.strobe-toggle.active{background:var(--binaural-secondary);border-color:var(--binaural-secondary);color:var(--binaural-bg);box-shadow:0 0 25px #00f2ff66}.visualizer-stage{width:100%;height:200px;background:#0000004d;border-radius:24px;position:relative;overflow:hidden;border:1px solid rgba(255,255,255,.05)}.strobe-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background:#fff;opacity:0;pointer-events:none;z-index:2}.strobe-active{animation:strobe-pulse var(--strobe-duration) infinite}@keyframes strobe-pulse{0%{opacity:.9}2%{opacity:0}to{opacity:0}}.wave-canvas{width:100%;height:100%;filter:blur(2px)}.warning{background:#ff00000d;border:1px solid rgba(255,0,0,.1);padding:1.5rem;border-radius:16px;font-size:.8rem;color:#ffffff80;line-height:1.6}.warning strong{color:#ff6464;text-transform:uppercase;letter-spacing:1px;display:block;margin-bottom:.5rem}@media(max-width:768px){.binaural-container{padding:.5rem}.tuner-card{padding:1.5rem 1rem;gap:1.5rem;border-radius:1.5rem}.controls-grid{grid-template-columns:1fr;gap:1.5rem}.control-group{gap:1rem}.value-display{font-size:2rem}.presets{gap:.5rem;justify-content:flex-start}.preset-btn{padding:.5rem .75rem;font-size:.75rem;flex:1 1 auto;text-align:center}.main-actions{flex-direction:column;gap:1rem;margin:.5rem 0}.play-button{width:80px;height:80px}.play-button svg{width:32px;height:32px}.strobe-toggle{padding:.75rem 1rem;font-size:.85rem;width:100%;box-sizing:border-box;text-align:center}.visualizer-stage{height:120px;border-radius:16px}.warning{padding:1rem;font-size:.75rem}}