:root{font-family:Play,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:block;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.container{padding:4rem 2rem 2rem;font-family:sans-serif;color:#65615d;min-height:100vh;width:100%;box-sizing:border-box;height:auto}@media (min-width: 900px){.container{max-width:66vw;margin-left:auto;margin-right:auto}}.article{padding:1.5rem;border-radius:15px;background:#fff;box-shadow:8px 8px 16px #969c92,-8px -8px 16px #f9eed8;margin-bottom:2.5rem;width:100%;box-sizing:border-box;border:1.5px solid #969c92;margin-left:auto;margin-right:auto}@media (min-width: 900px){.article{width:66%}}.hashtag{margin-right:.5rem;font-family:monospace;color:#969c92}:root{--binaural-bg: #0f0f10;--binaural-fg: #eaeaea;--binaural-muted: #8a8a8a;--binaural-accent: #2ee59d;--binaural-surface: #151517;--binaural-border: #2a2a2a}.binaural-wrap{width:100%!important;max-width:520px!important;margin:0 auto!important;padding:2rem 1rem 4rem!important;min-height:100vh!important;display:flex!important;align-items:flex-start!important;justify-content:center!important;background:var(--binaural-bg)!important;color:var(--binaural-fg)!important;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Helvetica Neue,Arial,Noto Sans,"Apple Color Emoji","Segoe UI Emoji"!important;box-sizing:border-box!important}.binaural-card{background:var(--binaural-surface)!important;border-radius:20px!important;padding:1.25rem!important;box-shadow:0 10px 30px #00000059!important;width:100%!important;box-sizing:border-box!important}.big-btn{display:block;margin:0 auto 1.25rem;width:5.5rem;height:5.5rem;border-radius:50%;border:2px solid var(--binaural-fg);background:transparent;color:var(--binaural-fg);font-size:2rem;line-height:1;display:flex;align-items:center;justify-content:center;transition:transform .1s ease,background .2s ease,border-color .2s ease;cursor:pointer}.big-btn:hover{transform:scale(1.02)}.big-btn:active{transform:scale(.97)}.big-btn.playing{background:var(--binaural-fg);color:var(--binaural-bg);border-color:var(--binaural-fg)}.slider-block{padding:.75rem 0 0}.label{font-size:.9rem;color:var(--binaural-muted);display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.5rem}.volume-pct{font-weight:500;color:var(--binaural-fg)}.volume-slider{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:100%;height:32px;background:transparent;cursor:pointer}.volume-slider::-webkit-slider-runnable-track{height:3px;background:var(--binaural-border);border-radius:999px}.volume-slider::-moz-range-track{height:3px;background:var(--binaural-border);border-radius:999px;border:none}.volume-slider::-webkit-slider-thumb{-webkit-appearance:none;-moz-appearance:none;appearance:none;width:24px;height:24px;border-radius:50%;background:var(--binaural-fg);margin-top:-10.5px;border:2px solid var(--binaural-bg);cursor:pointer}.volume-slider::-moz-range-thumb{width:24px;height:24px;border-radius:50%;background:var(--binaural-fg);border:2px solid var(--binaural-bg);cursor:pointer}.info-row{display:flex;align-items:center;gap:.9rem;justify-content:space-between;margin-top:1rem}.frequency-info{font-size:.85rem;color:var(--binaural-muted)}.freq-value{color:var(--binaural-accent);font-weight:500}.config-btn{width:3.1rem;height:3.1rem;border-radius:8px;border:2px solid var(--binaural-fg);background:transparent;color:var(--binaural-fg);font-size:1.4rem;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s ease}.config-btn:hover{background:var(--binaural-fg);color:var(--binaural-bg)}.config-btn:active{transform:scale(.95)}.hint{font-size:.85rem;color:var(--binaural-muted);margin-top:.75rem;text-align:center;line-height:1.4}.modal-backdrop{position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.config-modal{width:min(95vw,520px);background:var(--binaural-surface);color:var(--binaural-fg);border-radius:20px;padding:1rem;box-shadow:0 10px 30px #00000073;animation:modalSlideIn .2s ease}@keyframes modalSlideIn{0%{opacity:0;transform:scale(.9) translateY(-20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}.modal-header h2{margin:0;font-size:1.15rem;color:var(--binaural-fg)}.close-btn{background:none;border:none;color:var(--binaural-muted);font-size:1.2rem;cursor:pointer;padding:.25rem;border-radius:4px;transition:color .2s ease}.close-btn:hover{color:var(--binaural-fg)}.config-grid{display:grid;grid-template-columns:1fr 1fr;gap:.75rem;margin-bottom:1rem}.field{display:flex;flex-direction:column;gap:.4rem}.field label{font-size:.9rem;color:var(--binaural-muted);font-weight:500}.field input{background:#111;border:1px solid var(--binaural-border);border-radius:12px;padding:.85rem .8rem;color:var(--binaural-fg);font-size:1rem;transition:border-color .2s ease}.field input:focus{outline:none;border-color:var(--binaural-accent)}.config-actions{display:flex;gap:.6rem;justify-content:flex-end;margin-bottom:.75rem}.apply-btn{background:var(--binaural-accent);color:var(--binaural-bg);border:none;border-radius:8px;padding:.6rem 1.2rem;font-size:.9rem;font-weight:500;cursor:pointer;transition:all .2s ease}.apply-btn:hover{background:#26d18a;transform:translateY(-1px)}.apply-btn:active{transform:translateY(0)}.config-hint{font-size:.85rem;color:var(--binaural-muted);margin:0;line-height:1.4}@media (max-width: 480px){.binaural-wrap{padding:1rem .75rem 3rem}.binaural-card{padding:1rem}.big-btn{width:4.5rem;height:4.5rem;font-size:1.75rem}.config-grid{grid-template-columns:1fr}.info-row{flex-direction:column;align-items:flex-start;gap:.75rem}.frequency-info{align-self:center}}.big-btn:focus,.config-btn:focus,.volume-slider:focus,.apply-btn:focus,.close-btn:focus,.field input:focus{outline:2px solid var(--binaural-accent);outline-offset:2px}@media (prefers-contrast: high){:root{--binaural-bg: #000000;--binaural-fg: #ffffff;--binaural-surface: #1a1a1a;--binaural-border: #444444}}@media (prefers-reduced-motion: reduce){.big-btn,.config-btn,.apply-btn,.close-btn,.config-modal{transition:none}@keyframes modalSlideIn{0%,to{opacity:1;transform:none}}}