@font-face{font-family:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-vietnamese-wght-normal.BUzh504Q.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:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-ext-wght-normal.CcLUaPy7.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:Bricolage Grotesque Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/bricolage-grotesque-latin-wght-normal.DLoelf7F.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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-vietnamese-wght-normal.Czsa-EzN.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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-latin-ext-wght-normal.C-3rgBeH.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:Newsreader Variable;font-style:normal;font-display:swap;font-weight:200 800;src:url(/_astro/newsreader-latin-wght-normal.CCVVNp6i.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:Space Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/space-mono-vietnamese-400-normal.BNOj0Qhp.woff2) format("woff2"),url(/_astro/space-mono-vietnamese-400-normal.B0PMp_xB.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:Space Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/space-mono-latin-ext-400-normal.DTLbW2xa.woff2) format("woff2"),url(/_astro/space-mono-latin-ext-400-normal.D4cJI_B-.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:Space Mono;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/space-mono-latin-400-normal.Rg4St2Dn.woff2) format("woff2"),url(/_astro/space-mono-latin-400-normal._3DlpgIW.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}@font-face{font-family:Space Mono;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/space-mono-vietnamese-700-normal.DWQgDHuA.woff2) format("woff2"),url(/_astro/space-mono-vietnamese-700-normal.D-KrLuLr.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:Space Mono;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/space-mono-latin-ext-700-normal.B2s3bDs2.woff2) format("woff2"),url(/_astro/space-mono-latin-ext-700-normal.B_E7P90g.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:Space Mono;font-style:normal;font-display:swap;font-weight:700;src:url(/_astro/space-mono-latin-700-normal.mWgeinG7.woff2) format("woff2"),url(/_astro/space-mono-latin-700-normal.D7A851RN.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: #1a2b3c;--navy: #12314f;--navy-900: #0c2137;--accent: #2b6cb0;--accent-dark: #1f4f86;--sky: #e8f0f8;--paper: #fafcff;--muted: #5a6b7b;--line: #d3dde7;--rule: #c6d4e0;--font-display: "Bricolage Grotesque Variable", ui-sans-serif, system-ui, sans-serif;--font-body: "Newsreader Variable", ui-serif, Georgia, "Times New Roman", serif;--font-mono: "Space Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;--wrap: 46rem}*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;font-family:var(--font-body);font-size:1.09rem;color:var(--ink);background:var(--paper);line-height:1.62;font-optical-sizing:auto;-webkit-font-smoothing:antialiased}.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:1.4rem}main.wrap{padding-block:2.5rem 3.5rem}a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}a:hover{color:var(--accent-dark)}h1,h2,h3{font-family:var(--font-display);color:var(--navy);line-height:1.05;letter-spacing:-.02em;font-weight:800}.masthead{border-bottom:1.5px solid var(--navy);background:var(--paper)}.masthead-inner{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-block:.95rem}.brand{display:inline-flex;align-items:center;gap:.55rem;color:var(--navy);text-decoration:none}.brand .mark{color:var(--navy);flex:none}.brand-text{font-family:var(--font-display);font-weight:800;font-size:1.12rem;letter-spacing:-.02em}.masthead nav{display:flex;gap:1.4rem}.masthead nav a{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.14em;font-size:.7rem;color:var(--muted);text-decoration:none;padding-top:2px}.masthead nav a:hover{color:var(--accent)}.kicker{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.18em;font-size:.7rem;color:var(--accent);font-weight:700;margin:0 0 .9rem}.lede{font-family:var(--font-body);font-size:1.32rem;line-height:1.5;color:var(--ink);font-weight:420}h1{font-size:clamp(2.5rem,7vw,3.9rem);margin:0 0 1.1rem}h2{font-size:clamp(1.5rem,3.5vw,1.9rem);margin:3rem 0 .4rem}p{margin:0 0 1.1rem}.hero{position:relative;padding-block:1.5rem .5rem}.hero .contour{position:absolute;inset:-3rem -30% auto auto;width:46rem;max-width:120%;color:var(--line);opacity:.55;z-index:0;pointer-events:none}.hero>*{position:relative;z-index:1}.index{margin:1.6rem 0 0;border-top:1px solid var(--rule)}.index .row{display:grid;grid-template-columns:2.6rem 1fr;gap:1rem;padding:1.15rem 0;border-bottom:1px solid var(--rule)}.index .n{font-family:var(--font-mono);font-size:.8rem;color:var(--accent);padding-top:.35rem}.index .term{font-family:var(--font-display);font-weight:700;font-size:1.14rem;color:var(--navy)}.index .term a{text-decoration:none}.index .term a:hover{text-decoration:underline}.index .body{color:var(--ink);margin-top:.2rem}.index .arrow{color:var(--accent)}.register{margin:1.8rem 0 0;border-top:2px solid var(--navy)}.register .route{padding:1.25rem 0;border-bottom:1px solid var(--rule)}.register .route-head{display:flex;align-items:baseline;gap:.8rem}.register .rnum{font-family:var(--font-mono);font-size:.78rem;color:var(--accent);flex:none}.register .rname{font-family:var(--font-display);font-weight:700;font-size:1.22rem;color:var(--navy);letter-spacing:-.01em}.register .meta{font-family:var(--font-mono);text-transform:uppercase;letter-spacing:.06em;font-size:.68rem;color:var(--muted);margin:.45rem 0 0;padding-left:calc(.78rem + 2.4ch)}.register .note{margin:.35rem 0 0;color:var(--ink);padding-left:calc(.78rem + 2.4ch)}.prose p{max-width:40rem}.prose h2+p{margin-top:.4rem}.site-footer{margin-top:3rem;padding-block:2.2rem 3rem}.site-footer .foot-rule{height:2px;background:var(--navy);margin-bottom:1.2rem}.site-footer .foot-brand{font-family:var(--font-display);font-weight:800;color:var(--navy);font-size:1.05rem;margin:0 0 .4rem}.site-footer p{color:var(--muted);font-size:.92rem;max-width:34rem;margin:0 0 .5rem}.site-footer .fine{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.04em;color:var(--muted)}@media(max-width:34rem){.register .meta,.register .note{padding-left:0}}