@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-cyrillic-ext-wght-normal.BOeWTOD4.woff2) format("woff2-variations");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-cyrillic-wght-normal.DqGufNeO.woff2) format("woff2-variations");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-greek-ext-wght-normal.DlzME5K_.woff2) format("woff2-variations");unicode-range:U+1F00-1FFF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-greek-wght-normal.CkhJZR-_.woff2) format("woff2-variations");unicode-range:U+0370-0377,U+037A-037F,U+0384-038A,U+038C,U+038E-03A1,U+03A3-03FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-vietnamese-wght-normal.CBcvBZtf.woff2) format("woff2-variations");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-latin-ext-wght-normal.DO1Apj_S.woff2) format("woff2-variations");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/_astro/inter-latin-wght-normal.Dx4kXJAl.woff2) format("woff2-variations");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-cyrillic-ext-400-normal.xuaO2J-f.woff2) format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-ext-400-normal.DMdlQ8Kv.woff) format("woff");unicode-range:U+0460-052F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-cyrillic-400-normal.BSMlKf0J.woff2) format("woff2"),url(/_astro/ibm-plex-mono-cyrillic-400-normal.CEL4l2ZJ.woff) format("woff");unicode-range:U+0301,U+0400-045F,U+0490-0491,U+04B0-04B1,U+2116}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-vietnamese-400-normal.BulugwFq.woff2) format("woff2"),url(/_astro/ibm-plex-mono-vietnamese-400-normal.DDuiU_S-.woff) format("woff");unicode-range:U+0102-0103,U+0110-0111,U+0128-0129,U+0168-0169,U+01A0-01A1,U+01AF-01B0,U+0300-0301,U+0303-0304,U+0308-0309,U+0323,U+0329,U+1EA0-1EF9,U+20AB}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-latin-ext-400-normal.BmRBH3aV.woff2) format("woff2"),url(/_astro/ibm-plex-mono-latin-ext-400-normal.D3D2R8hC.woff) format("woff");unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}@font-face{font-family:IBM Plex Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/ibm-plex-mono-latin-400-normal.DMJ8VG8y.woff2) format("woff2"),url(/_astro/ibm-plex-mono-latin-400-normal.CvHOgSBP.woff) format("woff");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--ink:#152a29;--muted:#586b68;--line:#dce5df;--paper:#f6f8f6;--green:#17634f;--dark:#0b332f;--mint:#aaf2c5;--mono:"IBM Plex Mono",monospace;--sans:"Inter Variable",sans-serif;color:var(--ink);background:var(--paper);font-family:var(--sans);font-synthesis:none;scroll-behavior:smooth}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-underline-offset:.2em}button{font:inherit}img,svg{max-width:100%}a,button{-webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #2c9776;outline-offset:5px}p{line-height:1.75;margin:0 0 1.2rem}h1,h2,h3{font-weight:580;line-height:1.12;letter-spacing:-.045em;margin:0 0 1.25rem}h1{font-size:clamp(2.7rem,5.25vw,5rem)}h2{font-size:clamp(2rem,3.3vw,3.2rem)}h3{font-size:1.2rem;letter-spacing:-.025em}::selection{background:#cef2d6}.shell{width:min(1200px,calc(100% - 64px));margin:auto}.site-header{border-bottom:1px solid var(--line);background:var(--paper)}.nav-row{display:flex;align-items:center;justify-content:space-between;gap:2rem;min-height:92px}.brand{display:inline-flex;align-items:center;gap:.65rem;font-size:1.9rem;font-weight:730;letter-spacing:-.09em;text-decoration:none}.brand-dot{color:var(--green)}nav{display:flex;gap:1.8rem;align-items:center}nav a{font-size:.86rem;text-decoration:none;color:var(--muted);padding:.5rem 0}nav a[aria-current=page],nav a:hover{color:var(--ink)}nav a[aria-current=page]{box-shadow:0 2px var(--green)}.draft-badge{display:inline-flex;align-items:center;gap:.7rem;border:1px solid #cad8ce;border-radius:30px;padding:.5rem .8rem;font-size:.73rem;text-decoration:none;white-space:nowrap}.draft-badge:before{content:"";width:6px;height:6px;background:#45936a;border-radius:50%}.eyebrow{color:var(--green);font:500 .72rem/1.5 var(--mono);letter-spacing:.12em;text-transform:uppercase;margin-bottom:1.5rem}.hero{display:grid;grid-template-columns:1.04fr 1fr;gap:4rem;align-items:center;padding:90px 0 82px}.hero h1{max-width:650px}.hero h1 em{font-style:normal;color:var(--green)}.lede{font-size:1.1rem;color:var(--muted);max-width:40rem;line-height:1.75}.actions{display:flex;gap:.75rem;flex-wrap:wrap;margin-top:2rem}.button{display:inline-flex;align-items:center;justify-content:center;gap:1.1rem;min-height:46px;padding:.75rem 1.2rem;border-radius:7px;background:var(--dark);color:#fff;text-decoration:none;font-size:.86rem;font-weight:550}.button:hover{background:#155047}.button.secondary{background:transparent;border:1px solid #c6d5cc;color:var(--ink)}.small{font-size:.8rem;color:var(--muted)}.hero-note{margin-top:1.1rem;font-size:.75rem;color:var(--muted)}.diagram{background:var(--dark);color:#effbf1;border-radius:16px;box-shadow:0 20px 50px #153d2415;overflow:hidden}.diagram-head{display:flex;justify-content:space-between;gap:1rem;padding:1.25rem 1.5rem;border-bottom:1px solid #ffffff20;font:400 .67rem var(--mono);color:#b6d0c7}.diagram-body{padding:1.6rem}.diagram-kicker{color:#b6d0c7;font-size:.73rem;margin:0 0 .65rem}.recording-title{font-size:1.12rem;letter-spacing:-.02em}.waveform{display:flex;gap:3px;align-items:center;height:90px;margin:1rem 0;position:relative;border-bottom:1px solid #ffffff18}.waveform i{display:block;flex:1;height:var(--height);background:#5d9986;border-radius:2px;min-width:2px}.waveform i.mark{background:var(--mint)}.waveform-labels{display:flex;justify-content:space-between;font:.63rem var(--mono);color:#b6d0c7}.transfer-line{position:relative;width:1px;height:30px;background:#739d89;margin:15px auto}.transfer-line:after{content:"↓";position:absolute;bottom:-8px;left:-4px;font-size:15px;color:var(--mint)}.fingerprint-file{display:grid;grid-template-columns:32px 1fr auto;gap:.6rem;align-items:center;border:1px solid #507e6b;background:#214b3e;padding:.8rem 1rem;border-radius:8px}.file-icon{font:1.1rem var(--mono);color:var(--mint)}.fingerprint-file strong{font:400 .8rem var(--mono)}.fingerprint-file span.small-label{display:block;color:#b6d0c7;font-size:.66rem;margin-top:.25rem}.file-tag{font:.62rem var(--mono);color:var(--mint);border:1px solid #69997c;border-radius:4px;padding:.25rem .4rem}.device-paths{display:grid;grid-template-columns:repeat(3,1fr);text-align:center;gap:.6rem}.device-paths div{border-top:1px solid #507e6b;padding-top:1rem}.device-paths svg{height:29px;width:36px;display:block;margin:0 auto .65rem;stroke:#b8edc9;stroke-width:1.5;fill:none}.device-paths strong{display:block;font-size:.71rem;font-weight:450}.device-paths span{display:block;font-size:.61rem;color:#a9c3b7;margin-top:.3rem}.diagram-foot{padding:1rem 1.5rem;border-top:1px solid #ffffff20;font-size:.68rem;color:#b6d0c7;display:flex;justify-content:space-between;gap:1rem}.diagram-foot b{font-weight:450;color:var(--mint)}.principles{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:1.7rem 0;margin-bottom:5.5rem;gap:2rem}.principle{display:flex;gap:.9rem;align-items:start}.index{font:.7rem var(--mono);color:var(--green);padding-top:.2rem}.principle h2{font-size:.94rem;letter-spacing:-.025em;margin-bottom:.45rem}.principle p{font-size:.81rem;line-height:1.6;color:var(--muted);margin:0}.section{padding:0 0 6rem}.section-head{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:start;margin-bottom:2.8rem}.section-head p{color:var(--muted)}.code-panel{background:#eef2ee;border:1px solid var(--line);border-radius:12px;overflow:hidden}.code-top{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.8rem 1.1rem;border-bottom:1px solid #d3ded5;font:400 .7rem var(--mono);color:var(--muted)}pre{margin:0;padding:1.5rem;overflow-x:auto;font:400 .78rem/1.8 var(--mono);background:#eef2ee;tab-size:2}code{font-family:var(--mono);font-size:.86em}p code,li code,td code{background:#e8eee8;border-radius:3px;padding:.08rem .3rem;overflow-wrap:anywhere}.code-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:2.5rem;align-items:center}.code-points{display:grid;gap:1.2rem}.code-point{border-bottom:1px solid var(--line);padding-bottom:1rem}.code-point:last-child{border:0}.code-point h3{margin-bottom:.4rem}.code-point p{font-size:.9rem;color:var(--muted);margin:0}.link-arrow{color:var(--green);font-size:.88rem;text-decoration:none;font-weight:550}.link-arrow:hover{text-decoration:underline}.feature-band{background:#e8efe8;padding:4.5rem 0;margin-bottom:5rem}.feature-band .shell{display:grid;grid-template-columns:1fr 1fr;gap:5rem}.feature-band p{color:var(--muted)}.status-list{display:grid;gap:.7rem;margin:1.5rem 0}.status-item{display:flex;align-items:baseline;gap:.65rem;font-size:.85rem}.status-item b{font:400 .7rem var(--mono);color:var(--green)}.site-footer{background:#edf2ec;border-top:1px solid var(--line);padding:3.5rem 0 1.5rem}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:3rem}.footer-grid .brand{margin-bottom:1rem}.footer-grid h2{font-size:.78rem;font-weight:600;letter-spacing:0;margin-bottom:1.1rem}.footer-grid>div>a:not(.brand){display:block;font-size:.78rem;color:var(--muted);text-decoration:none;margin-bottom:.8rem}.footer-grid>div>a:hover{text-decoration:underline}.footer-note{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid #d6e0d5;margin-top:2rem;padding-top:1.2rem;font-size:.68rem;color:var(--muted)}.skip{position:absolute;top:-100px;left:1rem;z-index:20;padding:.7rem 1rem;background:var(--dark);color:#fff}.skip:focus{top:1rem}.page-intro{padding:4.5rem 0 3rem;max-width:820px}.page-intro h1{font-size:clamp(2.6rem,4.5vw,4rem)}.docs-layout{display:grid;grid-template-columns:210px minmax(0,1fr);gap:4rem;padding-bottom:6rem}.docs-nav{position:sticky;top:2rem;align-self:start;display:grid;gap:.8rem;font-size:.78rem}.docs-nav a{color:var(--muted);text-decoration:none;line-height:1.5}.docs-nav a:hover{color:var(--green)}.docs-content{min-width:0;max-width:860px}.docs-content section{margin-bottom:4rem;scroll-margin-top:2rem}.docs-content h2{font-size:1.9rem;margin-bottom:1.25rem}.docs-content h3{margin-top:1.6rem}.docs-content p,.docs-content li{font-size:.94rem;line-height:1.85;color:#415650}.docs-content ul{padding-left:1.3rem}.docs-content li{margin-bottom:.55rem}.docs-content .code-panel{margin:1.5rem 0}.note{border-left:3px solid #439b6e;background:#ecf3ed;padding:1rem 1.2rem;font-size:.86rem;line-height:1.75;margin:1.5rem 0}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:8px;margin:1.5rem 0}table{border-collapse:collapse;width:100%;text-align:left;font-size:.8rem;line-height:1.7}th,td{padding:.85rem 1rem;border-bottom:1px solid var(--line);vertical-align:top}th{background:#edf2ed;font-weight:600}tr:last-child td{border-bottom:0}td:first-child{min-width:130px}td{min-width:140px}.download-list{display:grid;gap:.65rem;margin:1.5rem 0}.download{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:1rem 1.2rem;border:1px solid var(--line);border-radius:8px;text-decoration:none;background:#fff}.download:hover{border-color:#70a387}.download strong{font-size:.86rem;font-weight:550}.download small{display:block;font-size:.75rem;color:var(--muted);margin-top:.3rem}.download>span{font-size:1.1rem;color:var(--green)}.wide-prose{max-width:780px;padding-bottom:5rem}.wide-prose h2{font-size:2rem;margin-top:3rem}.wide-prose p{color:#415650}.status-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}.status-card{border:1px solid var(--line);border-radius:10px;padding:1.7rem}.status-card .eyebrow{margin-bottom:.8rem}.status-card ul{padding-left:1.2rem;color:var(--muted);font-size:.9rem;line-height:1.9}.timeline{border-left:1px solid #b9d1be;padding-left:1.4rem;display:grid;gap:1.5rem}.timeline h3{font-size:1rem;margin-bottom:.5rem}.timeline p{margin:0;font-size:.87rem;color:var(--muted)}.step-number{font:.7rem var(--mono);color:var(--green);display:block;margin-bottom:.5rem}@media(max-width:1000px){.hero{gap:2.3rem;padding:65px 0}.hero h1{font-size:3.7rem}.nav-row{gap:1.1rem}nav{gap:1.1rem}.draft-badge{display:none}.docs-layout{grid-template-columns:170px minmax(0,1fr);gap:2rem}.feature-band .shell{gap:2.5rem}}@media(max-width:720px){.shell{width:calc(100% - 36px)}.nav-row{align-items:center;flex-wrap:wrap;gap:.6rem;padding:1.1rem 0;min-height:0}.brand{font-size:1.6rem}.brand img{width:29px;height:29px}nav{width:100%;justify-content:space-between;gap:.65rem}nav a{font-size:.75rem}.hero{grid-template-columns:1fr;padding:3.2rem 0 2.5rem;gap:2.5rem}.hero h1{font-size:clamp(2.7rem,10vw,4.5rem)}.lede{font-size:1rem}.eyebrow{font-size:.67rem;margin-bottom:1.1rem}.diagram-body{padding:1.3rem}.diagram-head{padding:1rem 1.3rem}.diagram-foot{padding:1rem;font-size:.62rem}.principles{grid-template-columns:1fr;gap:1.25rem;padding:1.8rem 0;margin-bottom:3rem}.section{padding-bottom:3.5rem}.section-head,.code-grid,.feature-band .shell{grid-template-columns:1fr;gap:1.25rem}.section-head{margin-bottom:1.8rem}.code-grid{gap:2rem}.feature-band{padding:3rem 0;margin-bottom:3rem}.footer-grid{grid-template-columns:1fr 1fr;gap:2rem}.footer-grid>div:first-child{grid-column:1/-1}.footer-note{flex-direction:column;font-size:.64rem}.page-intro{padding:3rem 0 2rem}.docs-layout{grid-template-columns:1fr;gap:2rem}.docs-nav{position:static;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--line);padding-bottom:1.5rem}.docs-content h2{font-size:1.7rem}.docs-content section{margin-bottom:2.5rem}.docs-content pre,pre{font-size:.7rem;padding:1rem}.status-grid{grid-template-columns:1fr}.wide-prose{padding-bottom:3rem}.download{padding:.8rem}.download strong{font-size:.78rem;overflow-wrap:anywhere}}@media(prefers-reduced-motion:reduce){:root{scroll-behavior:auto}}