@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/system-design-primer/_astro/inter-cyrillic-ext-wght-normal.BOeWTOD4.woff2)format("woff2-variations");unicode-range:U+460-52F,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(/system-design-primer/_astro/inter-cyrillic-wght-normal.DqGufNeO.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/system-design-primer/_astro/inter-greek-ext-wght-normal.DlzME5K_.woff2)format("woff2-variations");unicode-range:U+1F??}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/system-design-primer/_astro/inter-greek-wght-normal.CkhJZR-_.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/system-design-primer/_astro/inter-vietnamese-wght-normal.CBcvBZtf.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:Inter Variable;font-style:normal;font-display:swap;font-weight:100 900;src:url(/system-design-primer/_astro/inter-latin-ext-wght-normal.DO1Apj_S.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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(/system-design-primer/_astro/inter-latin-wght-normal.Dx4kXJAl.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-cyrillic-ext-wght-normal.cHuGMAiY.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-cyrillic-wght-normal.DwHjdM4S.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-greek-wght-normal.ece1310W.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-vietnamese-wght-normal.D-yuW59g.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-latin-ext-wght-normal.CxNHBx-q.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:"Source Serif 4 Variable";font-style:normal;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-latin-wght-normal.D9elroTD.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-cyrillic-ext-wght-italic.BXuSHrjR.woff2)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-cyrillic-wght-italic.RLIThRd4.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-greek-wght-italic.F2ziEGcb.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-vietnamese-wght-italic.C3q834ic.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-latin-ext-wght-italic.CpkvI5hy.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:"Source Serif 4 Variable";font-style:italic;font-display:swap;font-weight:200 900;src:url(/system-design-primer/_astro/source-serif-4-latin-wght-italic.D2yaqPoE.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(data:font/woff2;base64,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)format("woff2-variations");unicode-range:U+460-52F,U+1C80-1C8A,U+20B4,U+2DE0-2DFF,U+A640-A69F,U+FE2E-FE2F}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/system-design-primer/_astro/jetbrains-mono-cyrillic-wght-normal.D73BlboJ.woff2)format("woff2-variations");unicode-range:U+301,U+400-45F,U+490-491,U+4B0-4B1,U+2116}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/system-design-primer/_astro/jetbrains-mono-greek-wght-normal.Bw9x6K1M.woff2)format("woff2-variations");unicode-range:U+370-377,U+37A-37F,U+384-38A,U+38C,U+38E-3A1,U+3A3-3FF}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/system-design-primer/_astro/jetbrains-mono-vietnamese-wght-normal.Bt-aOZkq.woff2)format("woff2-variations");unicode-range:U+102-103,U+110-111,U+128-129,U+168-169,U+1A0-1A1,U+1AF-1B0,U+300-301,U+303-304,U+308-309,U+323,U+329,U+1EA0-1EF9,U+20AB}@font-face{font-family:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/system-design-primer/_astro/jetbrains-mono-latin-ext-wght-normal.DBQx-q_a.woff2)format("woff2-variations");unicode-range:U+100-2BA,U+2BD-2C5,U+2C7-2CC,U+2CE-2D7,U+2DD-2FF,U+304,U+308,U+329,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:JetBrains Mono Variable;font-style:normal;font-display:swap;font-weight:100 800;src:url(/system-design-primer/_astro/jetbrains-mono-latin-wght-normal.B9CIFXIH.woff2)format("woff2-variations");unicode-range:U+??,U+131,U+152-153,U+2BB-2BC,U+2C6,U+2DA,U+2DC,U+304,U+308,U+329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}:root{--font-ui:"Inter Variable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--font-serif:"Source Serif 4 Variable", "Iowan Old Style", Georgia, serif;--font-mono:"JetBrains Mono Variable", ui-monospace, "SF Mono", Menlo, Consolas, monospace;--bg:#fbfbf8;--surface:#fff;--surface-2:#f4f3ee;--ink:#1b1b19;--ink-2:#54534d;--ink-3:#6f6e65;--line:#e6e4dd;--line-strong:#d3d0c6;--accent:#0c7a73;--accent-strong:#095c57;--accent-ink:#fff;--accent-soft:#e2f2f0;--warn:#a8570c;--warn-soft:#fcf2e2;--shadow:0 1px 2px #1e1c140d, 0 8px 24px -12px #1e1c141f;--shadow-lg:0 24px 60px -20px #1e1c1447;--hue-start:#0c7a73;--hue-fundamentals:#4f5bd5;--hue-network:#0b84b8;--hue-application:#8a4fd0;--hue-data:#c4690a;--hue-practice:#cc3a5d;--hue-reference:#5f6b7a;--hue-labs:#a63d8a;--radius:12px;--header-h:60px;--sidebar-w:288px;--toc-w:248px;color-scheme:light}:root[data-theme=dark]{--bg:#0e1110;--surface:#151918;--surface-2:#1b201f;--ink:#ecebe5;--ink-2:#a8a79f;--ink-3:#8c8c84;--line:#262c2a;--line-strong:#353d3a;--accent:#4fd1c5;--accent-strong:#7fe3da;--accent-ink:#062b28;--accent-soft:#11302d;--warn:#f3a649;--warn-soft:#2a2010;--shadow:0 1px 2px #0006, 0 8px 24px -12px #0009;--shadow-lg:0 24px 60px -20px #000c;--hue-start:#4fd1c5;--hue-fundamentals:#8e98ff;--hue-network:#5cc3f0;--hue-application:#c39bff;--hue-data:#f5a553;--hue-practice:#ff7f9f;--hue-reference:#9fb0c3;--hue-labs:#e58bd0;color-scheme:dark}*,:before,:after{box-sizing:border-box}html{scroll-padding-top:calc(var(--header-h) + 20px);-webkit-text-size-adjust:100%}body{background:var(--bg);color:var(--ink);font-family:var(--font-ui);-webkit-font-smoothing:antialiased;text-rendering:optimizelegibility;margin:0;font-size:16px;line-height:1.6}a{color:inherit}img{max-width:100%;height:auto}button{font:inherit;color:inherit;cursor:pointer}:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}::selection{background:var(--accent-soft);color:var(--ink)}.sr-only{clip:rect(0 0 0 0);white-space:nowrap;width:1px;height:1px;position:absolute;overflow:hidden}.group-start{--hue:var(--hue-start)}.group-fundamentals{--hue:var(--hue-fundamentals)}.group-network{--hue:var(--hue-network)}.group-application{--hue:var(--hue-application)}.group-data{--hue:var(--hue-data)}.group-practice{--hue:var(--hue-practice)}.group-reference{--hue:var(--hue-reference)}.group-labs{--hue:var(--hue-labs)}.skip-link{background:var(--accent);color:var(--accent-ink);z-index:100;border-radius:8px;padding:8px 14px;transition:top .15s;position:absolute;top:-48px;left:12px}.skip-link:focus{top:10px}.progress{z-index:60;pointer-events:none;height:3px;position:fixed;inset:0 0 auto}.progress i{background:var(--accent);transform-origin:0;width:100%;height:100%;display:block;transform:scaleX(0)}.site-header{z-index:50;height:var(--header-h);background:color-mix(in srgb, var(--bg) 82%, transparent);-webkit-backdrop-filter:saturate(1.4)blur(14px);border-bottom:1px solid var(--line);position:sticky;top:0}.site-header .inner{align-items:center;gap:20px;max-width:1480px;height:100%;margin:0 auto;padding:0 20px;display:flex}.brand{letter-spacing:-.01em;white-space:nowrap;align-items:center;gap:10px;font-weight:650;text-decoration:none;display:flex}.brand-mark{flex:none;width:28px;height:28px}.brand small{color:var(--ink-3);margin-left:2px;font-weight:500}.top-nav{gap:2px;margin-left:12px;display:flex}.top-nav a{color:var(--ink-2);border-radius:8px;padding:7px 12px;font-size:14px;font-weight:500;text-decoration:none}.top-nav a:hover,.top-nav a[aria-current=true]{color:var(--ink);background:var(--surface-2)}.header-spacer{flex:1}.search-btn{background:var(--surface);border:1px solid var(--line);min-width:250px;color:var(--ink-3);border-radius:10px;align-items:center;gap:10px;padding:8px 10px 8px 12px;font-size:14px;transition:border-color .15s,box-shadow .15s;display:flex}.search-btn:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}.search-btn svg{flex:none;width:16px;height:16px}.search-btn span{text-align:left;flex:1}kbd{font-family:var(--font-ui);color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-bottom-width:2px;border-radius:6px;padding:1px 6px;font-size:11.5px;font-weight:500}.icon-btn{width:38px;height:38px;color:var(--ink-2);background:0 0;border:1px solid #0000;border-radius:10px;place-items:center;text-decoration:none;display:grid}.icon-btn:hover{background:var(--surface-2);color:var(--ink)}.icon-btn svg{width:19px;height:19px}.theme-toggle .moon,:root[data-theme=dark] .theme-toggle .sun{display:none}:root[data-theme=dark] .theme-toggle .moon{display:block}.menu-btn{display:none}.shell{grid-template-columns:var(--sidebar-w) minmax(0, 1fr) var(--toc-w);gap:0 40px;max-width:1480px;margin:0 auto;padding:0 20px;display:grid}.shell.no-toc{grid-template-columns:var(--sidebar-w) minmax(0, 1fr)}.sidebar{top:var(--header-h);height:calc(100vh - var(--header-h));scrollbar-width:thin;scrollbar-color:var(--line-strong) transparent;align-self:start;padding:28px 8px 40px 0;position:sticky;overflow-y:auto}.nav-group+.nav-group{margin-top:22px}.nav-group h2{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);align-items:center;gap:8px;margin:0 0 6px;padding:0 10px;font-size:11.5px;font-weight:650;display:flex}.nav-group h2:before{content:"";background:var(--hue);border-radius:50%;width:7px;height:7px}.nav-group ul{margin:0;padding:0;list-style:none}.nav-link{color:var(--ink-2);border-radius:8px;padding:6px 10px;font-size:14.5px;line-height:1.35;text-decoration:none;display:block}.nav-link:hover{background:var(--surface-2);color:var(--ink)}.nav-link[aria-current=page]{background:var(--accent-soft);color:var(--accent-strong);font-weight:600}.nav-sub{border-left:1px solid var(--line);margin:2px 0 6px 10px;padding-left:10px}.nav-sub>summary{cursor:pointer;color:var(--ink-2);border-radius:8px;align-items:center;gap:6px;margin-left:-10px;padding:6px 10px;font-size:14.5px;list-style:none;display:flex}.nav-sub>summary::-webkit-details-marker{display:none}.nav-sub>summary:before{content:"";opacity:.6;border-bottom:1.5px solid;border-right:1.5px solid;width:6px;height:6px;margin-right:4px;transition:transform .15s;transform:rotate(-45deg)}.nav-sub[open]>summary:before{transform:rotate(45deg)}.nav-sub>summary:hover{background:var(--surface-2);color:var(--ink)}.main{min-width:0;padding:40px 0 80px}.toc{top:var(--header-h);max-height:calc(100vh - var(--header-h));scrollbar-width:thin;align-self:start;padding:40px 0;position:sticky;overflow-y:auto}.toc h2{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px;font-size:11.5px;font-weight:650}.toc ol{border-left:1px solid var(--line);margin:0;padding:0;list-style:none}.toc a{color:var(--ink-2);border-left:1px solid #0000;margin-left:-1px;padding:4px 0 4px 14px;font-size:13.5px;line-height:1.4;text-decoration:none;display:block}.toc li.d3 a{color:var(--ink-3);padding-left:28px;font-size:13px}.toc a:hover{color:var(--ink)}.toc a.active{color:var(--accent-strong);border-left-color:var(--accent);font-weight:600}:root[data-theme=dark] .toc a.active{color:var(--accent)}.toc-inline{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin:0 0 28px;display:none}.toc-inline summary{cursor:pointer;padding:12px 16px;font-size:14px;font-weight:600}.toc-inline ol{margin:0;padding:0 16px 12px;list-style:none}.toc-inline a{color:var(--ink-2);padding:5px 0;font-size:14px;text-decoration:none;display:block}.toc-inline li.d3 a{color:var(--ink-3);padding-left:14px}.article{max-width:760px;margin:0 auto}.crumb{color:var(--ink-3);align-items:center;gap:8px;margin-bottom:14px;font-size:13px;display:flex}.crumb a{color:var(--hue,var(--accent));letter-spacing:.02em;font-weight:600;text-decoration:none}.crumb a:hover{text-decoration:underline}.article h1.title{font-family:var(--font-serif);letter-spacing:-.02em;text-wrap:balance;margin:0 0 14px;font-size:clamp(2.1rem,4.4vw,3rem);font-weight:600;line-height:1.1}.article .dek{color:var(--ink-2);text-wrap:pretty;margin:0 0 18px;font-size:1.18rem;line-height:1.55}.meta-row{border-block:1px solid var(--line);color:var(--ink-3);flex-wrap:wrap;align-items:center;gap:8px 16px;margin-bottom:30px;padding:14px 0;font-size:13.5px;display:flex}.meta-row a{color:var(--ink-2);align-items:center;gap:6px;text-decoration:none;display:inline-flex}.meta-row a:hover{color:var(--accent)}.meta-row svg{width:15px;height:15px}.chip{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line);border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:12.5px;font-weight:600;text-decoration:none;display:inline-flex}a.chip:hover{border-color:var(--accent);color:var(--accent-strong)}.chip.diff{background:color-mix(in srgb, var(--hue) 12%, transparent);color:var(--hue);border-color:color-mix(in srgb, var(--hue) 30%, transparent)}.concepts{flex-wrap:wrap;align-items:center;gap:8px;margin:-8px 0 30px;display:flex}.concepts-label{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin-right:4px;font-size:12px;font-weight:650}.steps{counter-reset:step;grid-template-columns:repeat(4,1fr);gap:10px;margin:0 0 34px;display:grid}.steps a{counter-increment:step;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);color:var(--ink-2);padding:12px 14px;font-size:13.5px;font-weight:550;line-height:1.35;text-decoration:none;transition:border-color .15s,transform .15s;display:block}.steps a:before{content:counter(step, decimal-leading-zero);font-family:var(--font-mono);color:var(--hue);margin-bottom:4px;font-size:12px;display:block}.steps a:hover{border-color:var(--hue);color:var(--ink);transform:translateY(-1px)}.pager{grid-template-columns:1fr 1fr;gap:14px;margin-top:64px;display:grid}.pager a{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:16px 18px;text-decoration:none;transition:border-color .15s,box-shadow .15s;display:block}.pager a:hover{border-color:var(--accent);box-shadow:var(--shadow)}.pager small{color:var(--ink-3);margin-bottom:4px;font-size:12px;display:block}.pager strong{font-weight:600}.pager .next{text-align:right;grid-column:2}.pager .prev{grid-column:1}.prose{color:color-mix(in srgb, var(--ink) 92%, var(--bg));overflow-wrap:break-word;font-size:1.0625rem;line-height:1.75}.prose>:first-child{margin-top:0}.prose p{text-wrap:pretty;margin:0 0 1.15em}.prose strong{color:var(--ink);font-weight:650}.prose a{color:var(--accent-strong);text-decoration:underline;text-decoration-color:color-mix(in srgb, var(--accent) 40%, transparent);text-underline-offset:3px;text-decoration-thickness:1px}.prose a:hover{text-decoration-color:var(--accent)}:root[data-theme=dark] .prose a{color:var(--accent)}.prose a.ext:after{content:"↗";opacity:.55;margin-left:2px;font-size:.72em;text-decoration:none;display:inline-block}.prose h2,.prose h3,.prose h4,.prose h5{color:var(--ink);scroll-margin-top:calc(var(--header-h) + 16px);line-height:1.25;position:relative}.prose h2{font-family:var(--font-serif);letter-spacing:-.015em;border-top:1px solid var(--line);margin:3em 0 .7em;padding-top:.6em;font-size:1.9rem;font-weight:600}.prose h3{font-family:var(--font-serif);letter-spacing:-.012em;margin:2.3em 0 .6em;font-size:1.55rem;font-weight:600}.prose h4{letter-spacing:-.005em;margin:2em 0 .5em;font-size:1.16rem;font-weight:650}.prose h5{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);margin:1.8em 0 .4em;font-size:.82rem;font-weight:650}.prose h2:first-child,.prose h3:first-child{margin-top:0}.prose .anchor{color:var(--ink-3);font-family:var(--font-ui);opacity:0;padding-right:.3em;font-weight:400;text-decoration:none;transition:opacity .12s;position:absolute;left:-1.1em}.prose h2:hover .anchor,.prose h3:hover .anchor,.prose h4:hover .anchor,.prose h5:hover .anchor,.prose .anchor:focus{opacity:1}.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.4em}.prose li{margin:.28em 0;padding-left:.2em}.prose li>ul,.prose li>ol{margin:.3em 0 .4em}.prose ul li::marker{color:var(--ink-3)}.prose ol li::marker{color:var(--ink-3);font-weight:600}.prose hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}.prose sup{font-size:.7em;line-height:0}.prose sup a{padding:0 2px;font-weight:600;text-decoration:none}.prose blockquote{border-left:3px solid var(--line-strong);color:var(--ink-2);margin:0 0 1.3em;padding:.2em 0 .2em 1.1em}.prose blockquote p{margin:0 0 .4em}.prose>blockquote:first-child{color:var(--ink-2);border-left:0;padding:0;font-size:1.1rem}.prose code{font-family:var(--font-mono);background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:.12em .4em;font-size:.86em}.prose .code-block code{font-size:inherit;background:0 0;border:0;padding:0}.prose img{border-radius:6px}.code-block{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow);margin:1.4em 0;overflow:hidden}.code-head{border-bottom:1px solid var(--line);background:var(--surface-2);font-family:var(--font-mono);color:var(--ink-3);justify-content:space-between;align-items:center;padding:7px 8px 7px 14px;font-size:12px;display:flex}.copy-btn{color:var(--ink-2);font-size:12px;font-family:var(--font-ui);background:0 0;border:1px solid #0000;border-radius:7px;padding:3px 9px}.copy-btn:hover{background:var(--surface);border-color:var(--line);color:var(--ink)}.copy-btn.done{color:var(--accent-strong)}.code-block pre{font-family:var(--font-mono);tab-size:4;margin:0;padding:14px 16px;font-size:13.5px;line-height:1.65;overflow-x:auto;background:0 0!important}.code-block pre code{width:max-content;min-width:100%;display:block}.shiki span{color:var(--shiki-light)}:root[data-theme=dark] .shiki span{color:var(--shiki-dark)}.is-plain pre{color:var(--ink-2)}.table-wrap{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin:1.4em 0;overflow-x:auto}.prose table{border-collapse:collapse;width:100%;font-size:.94rem;line-height:1.5}.prose th{text-align:left;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:var(--surface-2);font-size:12px;font-weight:650}.prose th,.prose td{border-bottom:1px solid var(--line);vertical-align:top;padding:11px 16px}.prose tr:last-child td{border-bottom:0}.prose td:first-child{color:var(--ink)}.prose td a{word-break:break-word}.prose .yes{color:var(--accent);font-weight:700}.prose td:has(.yes),.prose th+th{text-align:center}.figure{text-align:center;margin:1.8em 0}.figure img{border:1px solid var(--line);border-radius:var(--radius);max-width:100%;height:auto;box-shadow:var(--shadow);cursor:zoom-in;background:#fff;margin:0 auto;padding:14px;display:block}.figure figcaption{color:var(--ink-3);margin-top:10px;font-size:13px;font-style:italic}.figure figcaption a{color:var(--ink-3)!important}.callout{border-radius:var(--radius);border:1px solid;margin:1.6em 0;padding:14px 18px 4px}.callout-tradeoff{background:var(--warn-soft);border-color:color-mix(in srgb, var(--warn) 28%, transparent)}.callout-title{letter-spacing:.08em;text-transform:uppercase;color:var(--warn);align-items:center;gap:10px;margin-bottom:8px;font-size:12px;font-weight:700;display:flex}.callout-title:before{content:"";width:14px;height:14px;-webkit-mask:var(--i-scale) center / contain no-repeat;mask:var(--i-scale) center / contain no-repeat;background:currentColor}.callout{--i-scale:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 3v18M5 21h14M5 7h14M5 7l-3 8a4 4 0 0 0 6 0L5 7zm14 0l-3 8a4 4 0 0 0 6 0l-3-8z'/%3E%3C/svg%3E")}.callout-context,.sources summary .callout-context{letter-spacing:0;text-transform:none;background:color-mix(in srgb, currentColor 12%, transparent);border-radius:999px;padding:1px 8px;font-size:12.5px;font-weight:500}.callout>:last-child{margin-bottom:.9em}.callout li{margin:.2em 0}.sources{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);margin:1.8em 0}.sources summary{cursor:pointer;color:var(--ink-2);align-items:center;gap:10px;padding:12px 16px;font-size:14px;font-weight:600;list-style:none;display:flex}.sources summary::-webkit-details-marker{display:none}.sources summary:before{content:"";border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);width:7px;height:7px;margin:0 4px 0 2px;transition:transform .15s;transform:rotate(-45deg)}.sources[open] summary:before{transform:rotate(45deg)}.sources summary .callout-context{color:var(--ink-3)}.sources-count{color:var(--ink-3);margin-left:auto;font-size:12px;font-weight:500}.sources-body{border-top:1px solid var(--line);padding:14px 20px 6px;font-size:.97rem;line-height:1.6}.sources-body ul{padding-left:1.2em}dialog{color:var(--ink);background:0 0;border:0;max-width:none;max-height:none;padding:0}dialog::backdrop{backdrop-filter:blur(3px);background:#0c0e0d80}.search-dialog{width:min(640px,100vw - 24px);margin:9vh auto auto}.search-panel{background:var(--surface);border:1px solid var(--line-strong);box-shadow:var(--shadow-lg);border-radius:16px;overflow:hidden}.search-input-row{border-bottom:1px solid var(--line);align-items:center;gap:12px;padding:0 16px;display:flex}.search-input-row svg{width:19px;height:19px;color:var(--ink-3);flex:none}.search-input{font:inherit;color:var(--ink);background:0 0;border:0;outline:none;flex:1;padding:18px 0;font-size:17px}.search-input::-webkit-search-cancel-button{display:none}.search-results{max-height:min(56vh,460px);padding:8px;overflow-y:auto}.search-results h3{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);margin:10px 10px 6px;font-size:11.5px;font-weight:650}.result{border-radius:10px;padding:10px 12px;text-decoration:none;display:block}.result[aria-selected=true],.result:hover{background:var(--accent-soft)}.result b{font-size:15px;font-weight:600;display:block}.result span{color:var(--ink-3);margin-top:2px;font-size:13px;line-height:1.45;display:block}.result mark{background:color-mix(in srgb, var(--accent) 28%, transparent);color:inherit;border-radius:3px;padding:0 1px}.search-empty{text-align:center;color:var(--ink-3);padding:28px 16px;font-size:14px}.search-foot{border-top:1px solid var(--line);color:var(--ink-3);background:var(--surface-2);gap:16px;padding:10px 16px;font-size:12px;display:flex}.lightbox{width:100vw;height:100vh}.lightbox-inner{cursor:zoom-out;place-items:center;padding:28px;display:grid;position:fixed;inset:0}.lightbox img{max-width:min(1400px,100%);max-height:100%;box-shadow:var(--shadow-lg);background:#fff;border-radius:14px;padding:18px}.page-wrap{max-width:1160px;margin:0 auto;padding:0 20px}.section{padding:56px 0 8px}.section-head{justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px;display:flex}.eyebrow{letter-spacing:.1em;text-transform:uppercase;color:var(--accent);margin:0 0 8px;font-size:12px;font-weight:700}.section-head h2{font-family:var(--font-serif);letter-spacing:-.02em;margin:0;font-size:clamp(1.7rem,3vw,2.2rem);font-weight:600;line-height:1.15}.section-head p{color:var(--ink-2);max-width:56ch;margin:8px 0 0}.link-more{color:var(--accent-strong);white-space:nowrap;font-size:14px;font-weight:600;text-decoration:none}.link-more:hover{text-decoration:underline}.card-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;display:grid}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);flex-direction:column;gap:6px;padding:18px 18px 16px;text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex;position:relative;overflow:hidden}.card:before{content:"";background:var(--hue,var(--accent));opacity:.85;height:3px;position:absolute;inset:0 0 auto}.card:hover{border-color:color-mix(in srgb, var(--hue,var(--accent)) 50%, var(--line));box-shadow:var(--shadow);transform:translateY(-2px)}.card .kicker{font-family:var(--font-mono);color:var(--hue,var(--accent));font-size:12px}.card h3{letter-spacing:-.01em;margin:0;font-size:1.06rem;font-weight:650;line-height:1.3}.card p{color:var(--ink-2);margin:0;font-size:14px;line-height:1.5}.card .foot{color:var(--ink-3);margin-top:auto;padding-top:10px;font-size:12.5px}.topic-group+.topic-group{margin-top:36px}.topic-group>h3{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);align-items:center;gap:10px;margin:0 0 14px;font-size:13px;font-weight:700;display:flex}.topic-group>h3:before{content:"";background:var(--hue);border-radius:3px;width:8px;height:8px}.solution-card{padding:0}.solution-card .thumb{aspect-ratio:16/9;border-bottom:1px solid var(--line);background:#fff;place-items:center;padding:12px;display:grid;overflow:hidden}.solution-card .thumb img{object-fit:contain;width:100%;height:100%;transition:transform .3s}.solution-card:hover .thumb img{transform:scale(1.04)}.solution-card .body{flex-direction:column;flex:1;gap:6px;padding:14px 16px 16px;display:flex}.solution-card .body .foot{align-items:center;gap:8px;display:flex}.page-hero{max-width:760px;padding:56px 0 8px}.page-hero h1{font-family:var(--font-serif);letter-spacing:-.02em;text-wrap:balance;margin:0 0 14px;font-size:clamp(2.2rem,4.6vw,3.2rem);font-weight:600;line-height:1.08}.page-hero p{color:var(--ink-2);margin:0;font-size:1.15rem}.hero{border-bottom:1px solid var(--line);position:relative;overflow:hidden}.hero:before{content:"";background-image:radial-gradient(color-mix(in srgb, var(--ink) 11%, transparent) 1px, transparent 1.2px);opacity:.7;background-size:22px 22px;position:absolute;inset:0;-webkit-mask-image:radial-gradient(70% 80% at 70% 40%,#000 0%,#0000 72%);mask-image:radial-gradient(70% 80% at 70% 40%,#000 0%,#0000 72%)}.hero-grid{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);align-items:center;gap:40px;padding-block:84px 72px;display:grid;position:relative}.hero h1{font-family:var(--font-serif);letter-spacing:-.03em;text-wrap:balance;margin:14px 0 20px;font-size:clamp(2.6rem,6vw,4.4rem);font-weight:600;line-height:1.02}.hero h1 em{color:var(--accent);font-style:italic;font-weight:500}.hero .lede{color:var(--ink-2);max-width:34em;margin:0 0 30px;font-size:1.2rem}.cta-row{flex-wrap:wrap;align-items:center;gap:12px;display:flex}.btn{border:1px solid var(--line-strong);background:var(--surface);border-radius:11px;align-items:center;gap:8px;padding:12px 20px;font-size:15px;font-weight:600;text-decoration:none;transition:transform .15s,box-shadow .15s,background .15s;display:inline-flex}.btn:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.btn.primary:hover{background:var(--accent-strong);border-color:var(--accent-strong)}:root[data-theme=dark] .btn.primary:hover{background:#7fe3da}.btn svg{width:16px;height:16px}.hero-search{max-width:460px;margin-top:28px}.hero-search .search-btn{border-radius:12px;width:100%;padding:13px 14px;font-size:15px}.hero-art{position:relative}.hero-art svg{width:100%;height:auto;display:block}.stats{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);grid-template-columns:repeat(4,1fr);margin-top:-1px;display:grid}.stat{border-right:1px solid var(--line);padding:20px 24px}.stat:last-child{border-right:0}.stat b{font-family:var(--font-serif);letter-spacing:-.02em;font-size:2rem;font-weight:600;line-height:1.1;display:block}.stat span{color:var(--ink-2);font-size:13.5px}.paths{grid-template-columns:repeat(3,1fr);gap:14px;display:grid}.path-card{border:1px solid var(--line);background:var(--surface);border-radius:14px;flex-direction:column;gap:8px;padding:22px;text-decoration:none;transition:transform .18s,border-color .18s,box-shadow .18s;display:flex}.path-card:hover{border-color:var(--accent);box-shadow:var(--shadow);transform:translateY(-2px)}.path-card .when{font-family:var(--font-mono);color:var(--accent);font-size:12px}.path-card h3{font-family:var(--font-serif);letter-spacing:-.01em;margin:0;font-size:1.5rem;font-weight:600}.path-card p{color:var(--ink-2);margin:0;font-size:14.5px}.path-card ul{color:var(--ink-2);gap:4px;margin:6px 0 0;padding:0;font-size:13.5px;list-style:none;display:grid}.path-card li:before{content:"→";color:var(--accent);margin-right:8px}.site-footer{border-top:1px solid var(--line);background:var(--surface-2);margin-top:96px}.site-footer .inner{max-width:1160px;color:var(--ink-2);flex-wrap:wrap;justify-content:space-between;gap:20px 40px;margin:0 auto;padding:36px 20px;font-size:14px;display:flex}.site-footer a{color:var(--ink);text-decoration-color:var(--line-strong);text-underline-offset:3px}.site-footer p{max-width:52ch;margin:0 0 6px}@media (width<=1240px){.shell{grid-template-columns:var(--sidebar-w) minmax(0, 1fr)}.toc{display:none}.toc-inline{display:block}}@media (width<=960px){:root{--sidebar-w:300px}.shell,.shell.no-toc{grid-template-columns:minmax(0,1fr);padding:0 16px}.sidebar{z-index:70;background:var(--bg);border-right:1px solid var(--line);width:min(88vw,320px);height:100vh;box-shadow:var(--shadow-lg);padding:20px 16px 40px;transition:transform .22s;position:fixed;inset:0 auto 0 0;transform:translate(-102%)}body.nav-open .sidebar{transform:none}body.nav-open:after{content:"";z-index:65;background:#0c0e0d73;position:fixed;inset:0}.menu-btn{display:grid}.top-nav{display:none}.site-header .search-btn{background:0 0;border-color:#0000;justify-content:center;width:38px;min-width:0;height:38px;padding:0}.site-header .search-btn span,.site-header .search-btn kbd{display:none}.main{padding-top:28px}.hero-grid{grid-template-columns:1fr;padding-block:48px 44px}.hero-art{max-width:520px}.stats{grid-template-columns:repeat(2,1fr)}.stat:nth-child(2){border-right:0}.stat:nth-child(-n+2){border-bottom:1px solid var(--line)}.paths{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr)}.prose .anchor{display:none}}@media (width<=560px){.brand small{display:none}.pager{grid-template-columns:1fr}.pager .next,.pager .prev{grid-column:1}.prose{font-size:1.02rem}.prose h2{font-size:1.6rem}.prose h3{font-size:1.35rem}}@media (prefers-reduced-motion:reduce){*,:before,:after{transition:none!important;animation:none!important}html{scroll-behavior:auto}}@media print{.site-header,.sidebar,.toc,.toc-inline,.pager,.site-footer,.progress,.copy-btn{display:none!important}.shell,.sources:not([open]) .sources-body{display:block}}.widget{border:1px solid var(--line);background:var(--surface);box-shadow:var(--shadow);border-radius:18px;margin:1.8em 0;font-size:15px;line-height:1.5;overflow:hidden}.widget-head{border-bottom:1px solid var(--line);background:linear-gradient(180deg, var(--surface-2), var(--surface));flex-wrap:wrap;justify-content:space-between;align-items:flex-start;gap:16px 24px;padding:22px 24px 18px;display:flex}.widget-head .eyebrow{margin-bottom:4px}.widget-head h3{font-family:var(--font-serif);letter-spacing:-.01em;margin:0 0 4px;font-size:1.45rem;font-weight:600}.widget-head p{color:var(--ink-2);max-width:46ch;margin:0;font-size:14.5px}.widget-head sup{font-size:.6em}.widget h4{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);margin:0 0 12px;font-size:13px;font-weight:650}.widget-original{color:var(--ink-3);margin-top:12px;font-size:14px}.widget-original summary{cursor:pointer}.seg{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;gap:4px;padding:4px;display:inline-flex}.seg button{color:var(--ink-2);background:0 0;border:0;border-radius:9px;flex-direction:column;align-items:flex-start;padding:7px 14px;line-height:1.2;display:flex}.seg button b{font-size:14px;font-weight:600}.seg button small{color:var(--ink-3);margin-top:2px;font-size:11.5px}.seg button[aria-pressed=true]{background:var(--surface);color:var(--ink);box-shadow:0 1px 2px #0000001f, 0 0 0 1px var(--line)}.seg button[aria-pressed=true] small{color:var(--accent-strong)}.seg.small button{padding:6px 12px}.link-btn{color:var(--accent-strong);text-underline-offset:3px;background:0 0;border:0;padding:2px 4px;font-size:13.5px;font-weight:600;text-decoration:underline}.link-btn:disabled{opacity:.4;cursor:not-allowed}.chip-btn{border:1px solid var(--line);background:var(--surface);color:var(--ink-2);border-radius:999px;padding:4px 11px;font-size:13px;font-weight:600}.chip-btn:hover{border-color:var(--accent)}.chip-btn[aria-pressed=true]{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}.chip-btn sup{font-size:.7em}.widget .plan-list{margin:0;padding:6px 0;list-style:none}.plan-list li{border-bottom:1px solid var(--line);cursor:pointer;grid-template-columns:24px 1fr auto;align-items:start;gap:14px;padding:13px 24px;transition:background .12s;display:grid}.plan-list li:last-child{border-bottom:0}.plan-list li:hover{background:var(--surface-2)}.plan-list input{appearance:none;border:1.5px solid var(--line-strong);background:var(--surface);cursor:pointer;border-radius:7px;place-content:center;width:22px;height:22px;margin:1px 0 0;display:grid}.plan-list input:checked{background:var(--accent);border-color:var(--accent)}.plan-list input:checked:after{content:"";border:solid var(--accent-ink);border-width:0 2px 2px 0;width:5px;height:10px;transform:rotate(45deg)translate(-1px,-1px)}.plan-list li.is-done .plan-text{color:var(--ink-3);text-decoration:line-through;text-decoration-color:var(--line-strong)}.plan-text a{color:var(--accent-strong);text-underline-offset:3px}.tag{white-space:nowrap;border-radius:999px;align-self:center;padding:2px 10px;font-size:12px;font-weight:650}.tag.all{background:var(--accent-soft);color:var(--accent-strong)}.tag.part{background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}:root[data-theme=dark] .tag.all{color:var(--accent)}.plan-foot{border-top:1px solid var(--line);background:var(--surface-2);color:var(--ink-2);align-items:center;gap:14px;padding:14px 24px;font-size:13.5px;display:flex}.meter{background:var(--line);border-radius:999px;flex:1;height:8px;overflow:hidden}.meter i{background:var(--accent);border-radius:999px;height:100%;transition:width .25s;display:block}.widget .lat-list{margin:0;padding:10px 24px 6px;list-style:none}.lat-list li{border-bottom:1px dashed var(--line);grid-template-columns:minmax(150px,1.15fr) minmax(90px,1.6fr) 110px;align-items:center;gap:16px;padding:9px 0;display:grid}.lat-list li:last-child{border-bottom:0}.lat-name{color:var(--ink);font-size:14px;line-height:1.3}.lat-name small{color:var(--ink-3);margin-top:1px;font-size:11.5px;display:block}.lat-bar{background:var(--surface-2);border-radius:999px;height:12px;overflow:hidden}.lat-bar i,.lat-legend i{border-radius:999px;height:100%;transition:width .4s;display:block}.lat-bar i.cpu,.lat-legend i.cpu{background:var(--hue-start)}.lat-bar i.dc,.lat-legend i.dc{background:var(--hue-fundamentals)}.lat-bar i.disk,.lat-legend i.disk{background:var(--hue-data)}.lat-bar i.wan,.lat-legend i.wan{background:var(--hue-practice)}.lat-val{font-family:var(--font-mono);text-align:right;color:var(--ink-2);font-variant-numeric:tabular-nums;font-size:13px}.lat-legend{color:var(--ink-3);border-top:1px solid var(--line);flex-wrap:wrap;gap:8px 20px;padding:12px 24px 16px;font-size:12.5px;display:flex}.lat-legend span{align-items:center;gap:7px;display:inline-flex}.lat-legend i{width:10px;height:10px}.pow-body{grid-template-columns:1.3fr 1fr;align-items:end;gap:20px;padding:22px 24px 8px;display:grid}.pow-big b{font-family:var(--font-mono);letter-spacing:-.02em;word-break:break-all;font-size:clamp(1.4rem,3.4vw,2.2rem);font-weight:600;line-height:1.15;display:block}.pow-big span{color:var(--ink-3);font-size:12.5px}.widget .pow-facts{gap:8px;margin:0;display:grid}.pow-facts div{border-bottom:1px solid var(--line);justify-content:space-between;gap:12px;padding-bottom:8px;display:flex}.pow-facts dt{color:var(--ink-3);font-size:13.5px}.pow-facts dd{text-align:right;margin:0;font-weight:600}.pow-control{gap:14px;padding:14px 24px 22px;display:grid}.pow-control input[type=range]{width:100%;accent-color:var(--accent)}.pow-chips{flex-wrap:wrap;gap:6px;margin-bottom:14px;display:flex}.pow-control .pow-chips{margin:0}.nines-grid{grid-template-columns:1fr 1fr;display:grid}.nines-grid .panel{padding:20px 24px 24px}.nines-grid .panel+.panel{border-left:1px solid var(--line)}.field{align-items:center;gap:10px;margin:12px 0;display:flex}.field span{color:var(--ink-2);flex:1;font-size:14px}.field input{border:1px solid var(--line-strong);background:var(--bg);width:110px;color:var(--ink);font:inherit;font-family:var(--font-mono);text-align:right;border-radius:9px;padding:7px 10px;font-size:14px}.field em{color:var(--ink-3);width:14px;font-size:13px;font-style:normal}.mini{border-collapse:collapse;width:100%;margin-top:8px}.mini th,.mini td{border-bottom:1px solid var(--line);text-align:left;padding:8px 0;font-size:14px;font-weight:400}.mini th{color:var(--ink-3)}.mini td{font-family:var(--font-mono);text-align:right;color:var(--ink)}.mini tr:last-child th,.mini tr:last-child td{border-bottom:0}.comp-list{margin:8px 0}.result{background:var(--accent-soft);border-radius:12px;margin-top:14px;padding:14px 16px}.result b{font-family:var(--font-mono);color:var(--accent-strong);letter-spacing:-.02em;font-size:1.6rem;display:block}:root[data-theme=dark] .result b{color:var(--accent)}.result span{color:var(--ink-2);font-size:13.5px}@media (width<=700px){.widget-head{padding:18px 16px 14px}.plan-list li{grid-template-columns:24px 1fr;padding:12px 16px}.plan-list .tag{grid-column:2;justify-self:start;margin-top:-4px}.plan-foot,.lat-legend,.pow-control,.widget .lat-list{padding-inline:16px}.lat-list li{grid-template-columns:1fr auto;gap:6px 12px}.lat-bar{order:3;grid-column:1/-1}.pow-body{grid-template-columns:1fr;padding-inline:16px}.nines-grid{grid-template-columns:1fr}.nines-grid .panel+.panel{border-left:0;border-top:1px solid var(--line)}.nines-grid .panel{padding-inline:16px}.seg{width:100%}.seg button{flex:1}}.fc-tools{gap:8px;display:flex}.fc-stage{gap:16px;padding:22px 24px 26px;display:grid}.fc-count{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);font-size:12.5px;font-weight:600}.fc-card{border:1px solid var(--line-strong);background:var(--bg);min-height:180px;box-shadow:var(--shadow);border-radius:16px;padding:28px 28px 24px}.widget .fc-front{text-transform:none;color:var(--ink);font-family:var(--font-serif);letter-spacing:-.015em;text-wrap:balance;margin:0;font-size:clamp(1.5rem,3.4vw,2.1rem);font-weight:600;line-height:1.2}.fc-hint{color:var(--ink-3);margin:14px 0 0;font-size:14px}.fc-back{border-top:1px dashed var(--line-strong);max-height:min(58vh,520px);margin-top:20px;padding-top:18px;padding-right:6px;font-size:.98rem;line-height:1.65;overflow-y:auto}.fc-back h1,.fc-back h2,.fc-back h3,.fc-back h4,.fc-back h5,.fc-back h6{font-family:var(--font-ui);letter-spacing:.06em;text-transform:uppercase;color:var(--ink-2);border:0;margin:1.4em 0 .4em;padding:0;font-size:.8rem}.fc-back img{border:1px solid var(--line);background:#fff;border-radius:10px;max-width:100%;height:auto;margin:0 auto 8px;padding:10px;display:block}.fc-back pre{background:var(--surface-2);border-radius:10px;padding:12px 14px;font-size:13px;overflow-x:auto}.fc-back pre code{background:0 0;border:0;padding:0}.fc-back table{font-size:.9rem}.fc-actions{flex-wrap:wrap;gap:10px;display:flex}.fc-actions .btn kbd{margin-left:4px}.fc-actions .btn.primary kbd{color:inherit;background:#ffffff2e;border-color:#ffffff4d}.fc-done{text-align:center;padding:48px 24px}.widget .fc-done h4{font-family:var(--font-serif);text-transform:none;letter-spacing:-.01em;color:var(--ink);margin:0 0 6px;font-size:1.6rem}.fc-done p{color:var(--ink-2);margin:0 0 18px}@media (width<=700px){.fc-stage{padding:16px}.fc-card{padding:20px 18px}}.widget.lab{font-size:15px}.widget.lab .head-actions{gap:8px;display:flex}.widget.lab h4{margin:0 0 10px}.widget.lab code{font-size:.86em}.ch-note{color:var(--ink-3);margin:8px 0 0;font-size:13px;line-height:1.5}.ok{color:var(--accent-strong)}.bad{color:var(--hue-practice)}:root[data-theme=dark] .ok{color:var(--accent)}.lab-field{border-bottom:1px solid var(--line);justify-content:space-between;align-items:flex-start;gap:14px;margin:0;padding:10px 0;display:flex}.lab-field>span{color:var(--ink);flex:1;font-size:14px;line-height:1.3}.lab-field>span small{color:var(--ink-3);margin-top:2px;font-size:12px;display:block}.lab-field.inline{border:0;align-items:center;padding:6px 0}.lab-input{align-items:center;gap:8px;display:flex}.lab-input input{border:1px solid var(--line-strong);background:var(--bg);width:120px;color:var(--ink);font:inherit;font-family:var(--font-mono);text-align:right;border-radius:9px;padding:7px 10px;font-size:14px}.lab-input input[type=text]{text-align:left;width:160px}.lab-input em{color:var(--ink-3);min-width:52px;font-size:12px;font-style:normal}.lab-field.inline .lab-input em{min-width:0}.lab-range{color:var(--ink-2);gap:6px;min-width:200px;font-size:13.5px;display:grid}.lab-range b{color:var(--ink);font-family:var(--font-mono)}.lab-range input[type=range]{width:100%;accent-color:var(--accent)}.lab-check{color:var(--ink-2);align-items:center;gap:8px;font-size:13.5px;display:flex}.lab-check small{color:var(--ink-3)}.lab-check input{accent-color:var(--accent);width:16px;height:16px}.est-presets{flex-wrap:wrap;gap:8px;padding:16px 24px 0;display:flex}.est-grid{grid-template-columns:minmax(300px,.9fr) 1.3fr;gap:28px;padding:6px 24px 24px;display:grid}.est-cards{grid-template-columns:repeat(auto-fill,minmax(168px,1fr));gap:10px;display:grid}.est-card{border:1px solid var(--line);background:var(--bg);border-radius:12px;flex-direction:column;gap:2px;min-width:0;padding:12px 14px;display:flex}.est-card.strong{background:var(--accent-soft);border-color:color-mix(in srgb, var(--accent) 30%, var(--line))}.est-card.warn{border-color:color-mix(in srgb, var(--warn) 45%, var(--line));background:var(--warn-soft)}.est-label{color:var(--ink-3);letter-spacing:.02em;font-size:12px;font-weight:600}.est-card b{font-family:var(--font-mono);letter-spacing:-.02em;word-break:break-word;font-size:1.28rem;font-weight:600}.est-card small{color:var(--ink-3);font-size:11.5px;line-height:1.35}.est-hints{border:1px dashed var(--line-strong);border-radius:12px;margin-top:18px;padding:14px 16px}.widget .est-hints ul{margin:0;padding-left:1.1em}.widget .est-hints li{color:var(--ink-2);margin:4px 0;padding:0;font-size:14px}.est-note{color:var(--ink-3);margin:8px 0 0;font-size:12.5px}.ch-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 24px;padding:16px 24px 0;display:flex}.ch-nodes{flex-wrap:wrap;align-items:center;gap:8px;display:flex}.ch-chip{background:var(--surface-2);border:1px solid var(--line);border-radius:999px;align-items:center;gap:7px;padding:4px 4px 4px 10px;font-size:13.5px;font-weight:650;display:inline-flex}.ch-chip i{background:var(--c);border-radius:50%;width:10px;height:10px}.ch-chip button{width:22px;height:22px;color:var(--ink-3);background:0 0;border:0;border-radius:50%;font-size:16px;line-height:1}.ch-chip button:hover:not(:disabled){background:var(--line);color:var(--ink)}.ch-chip button:disabled{opacity:.3;cursor:not-allowed}.ch-body{grid-template-columns:minmax(260px,380px) 1fr;align-items:start;gap:24px;padding:14px 24px 24px;display:grid}.ch-ring svg{width:100%;height:auto;display:block}.ch-c1{font:650 14px var(--font-ui);fill:var(--ink)}.ch-c2{font:500 11px var(--font-mono);fill:var(--ink-3)}.ch-moved{border:1px solid var(--line);background:var(--bg);border-radius:12px;margin-bottom:16px;padding:12px 14px}.ch-compare{grid-template-columns:1fr 1fr;gap:10px;display:grid}.ch-compare b{font-family:var(--font-mono);color:var(--accent-strong);font-size:1.5rem;display:block}.ch-compare .bad b{color:var(--hue-practice)}:root[data-theme=dark] .ch-compare b{color:var(--accent)}:root[data-theme=dark] .ch-compare .bad b{color:var(--hue-practice)}.ch-compare span{color:var(--ink-2);font-size:12.5px;line-height:1.35;display:block}.ch-bars{gap:7px;display:grid}.ch-bar{grid-template-columns:18px 1fr 50px;align-items:center;gap:8px;font-size:13px;display:grid}.ch-bar>div{background:var(--surface-2);border-radius:999px;height:12px;position:relative;overflow:visible}.ch-bar>div i{border-radius:999px;height:100%;transition:width .3s;display:block}.ch-bar>div u{border-left:2px dashed var(--ink-3);width:0;position:absolute;top:-3px;bottom:-3px}.ch-bar b{font-family:var(--font-mono);text-align:right;font-size:12.5px}.ch-lookup{color:var(--ink-2);margin:6px 0 0;font-size:13.5px;line-height:1.5}.ce-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 24px;padding:16px 24px 4px;display:flex}.ce-custom{padding:0 24px}.ce-custom .lab-input{flex:1}.ce-custom .lab-input input{width:100%}.ce-results{gap:6px;padding:12px 24px 8px;display:grid}.ce-row{text-align:left;background:0 0;border:1px solid #0000;border-radius:12px;grid-template-columns:150px 1fr 48px;align-items:center;gap:14px;width:100%;padding:8px 12px;display:grid}.ce-row:hover{background:var(--surface-2)}.ce-row.on{border-color:var(--accent);background:var(--accent-soft)}.ce-name b{font-size:14.5px;display:block}.ce-name small{color:var(--ink-3);font-size:11.5px}.ce-track{background:var(--surface-2);border-radius:999px;height:12px;overflow:hidden}.ce-row.on .ce-track{background:color-mix(in srgb, var(--surface) 70%, transparent)}.ce-track i{background:var(--ink-3);border-radius:999px;height:100%;transition:width .35s;display:block}.ce-track i.best{background:var(--accent)}.ce-track i.opt{background:repeating-linear-gradient(45deg, var(--hue-fundamentals), var(--hue-fundamentals) 6px, color-mix(in srgb, var(--hue-fundamentals) 60%, transparent) 6px, color-mix(in srgb, var(--hue-fundamentals) 60%, transparent) 12px)}.ce-pct{font-family:var(--font-mono);text-align:right;font-size:13.5px;font-weight:600}.ce-detail{border:1px solid var(--line);background:var(--bg);border-radius:14px;margin:8px 24px 24px;padding:14px 16px}.ce-detail-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;font-size:14px;display:flex}.ce-play{gap:6px;display:flex}.ce-seq{flex-wrap:wrap;gap:4px;display:flex}.ce-chip{text-align:center;min-width:28px;font-family:var(--font-mono);border:1.5px solid #0000;border-radius:7px;padding:3px 5px;font-size:12px;font-weight:600}.ce-chip.hit{background:color-mix(in srgb, var(--accent) 20%, transparent);color:var(--accent-strong)}.ce-chip.miss{background:color-mix(in srgb, var(--hue-practice) 18%, transparent);color:var(--hue-practice)}:root[data-theme=dark] .ce-chip.hit{color:var(--accent)}.ce-chip.future{opacity:.28}.ce-chip.cur{border-color:var(--ink)}.ce-slots{flex-wrap:wrap;gap:8px;margin-top:14px;display:flex}.ce-slot{border:1.5px solid var(--line-strong);background:var(--surface);width:50px;height:50px;font-family:var(--font-mono);border-radius:12px;place-items:center;font-size:15px;font-weight:700;transition:transform .15s;display:grid}.ce-slot.empty{background:0 0;border-style:dashed}.ce-slot.fresh{border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent)}.lb-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:14px 24px;padding:16px 24px 0;display:flex}.lb-toggles{flex-wrap:wrap;align-items:center;gap:12px 22px;display:flex}.lb-stage{border:1px solid var(--line);background:var(--bg);border-radius:14px;margin:14px 24px 0;padding:14px 16px 12px}.lb-play{align-items:center;gap:12px;margin-bottom:10px;display:flex}.lb-play .ch-note{font-family:var(--font-mono);margin:0}.lb-servers{grid-template-columns:repeat(auto-fit,minmax(80px,1fr));align-items:end;gap:12px;display:grid}.lb-server{text-align:center;gap:4px;font-size:12.5px;display:grid}.lb-server small{color:var(--ink-3);font-size:11.5px}.lb-stack{background:var(--surface-2);border-radius:10px;flex-direction:column-reverse;gap:2px;height:150px;padding:4px;display:flex;overflow:hidden}.lb-stack i{height:calc((150px - 8px - (var(--top) * 2px)) / var(--top));background:var(--hue-fundamentals);opacity:.85;border-radius:3px;flex:none;min-height:3px}.lb-table-wrap{border:1px solid var(--line);border-radius:12px;margin:16px 24px 24px;overflow-x:auto}.lb-table{border-collapse:collapse;width:100%;font-size:13.5px}.lb-table th,.lb-table td{text-align:left;border-bottom:1px solid var(--line);white-space:nowrap;padding:10px 14px}.lb-table th{letter-spacing:.06em;text-transform:uppercase;color:var(--ink-3);background:var(--surface-2);font-size:11.5px;font-weight:650}.lb-table tr:last-child td{border-bottom:0}.lb-table tbody tr{cursor:pointer}.lb-table tbody tr:hover{background:var(--surface-2)}.lb-table tr.on{background:var(--accent-soft)}.lb-table td{font-family:var(--font-mono)}.lb-table td:first-child{font-family:var(--font-ui)}.lb-table td.best{color:var(--accent-strong);font-weight:700}:root[data-theme=dark] .lb-table td.best{color:var(--accent)}.lb-mini{align-items:flex-end;gap:3px;height:92px;display:inline-flex}.lb-mini i{background:var(--hue-fundamentals);opacity:.8;border-radius:3px 3px 0 0;width:12px}.lb-table td:last-child{vertical-align:bottom}.cap-controls{flex-wrap:wrap;align-items:center;gap:10px 14px;padding:16px 24px 0;display:flex}.cap-stage{padding:18px 24px 8px}.cap-net{grid-template-columns:repeat(3,1fr);gap:18px;padding:8px 0;display:grid;position:relative}.cap-node{z-index:1;border:1.5px solid var(--line-strong);background:var(--bg);text-align:center;border-radius:14px;justify-items:center;gap:6px;padding:14px 10px 12px;transition:border-color .2s,background .2s;display:grid;position:relative}.cap-node.stale{border-color:var(--warn);background:var(--warn-soft)}.cap-node.island{border-style:dashed}.cap-val{font-family:var(--font-mono);font-size:1.6rem;font-weight:700}.cap-node em{color:var(--warn);letter-spacing:.04em;text-transform:uppercase;font-size:11.5px;font-style:normal;font-weight:650}.cap-node em.fresh{color:var(--accent-strong)}:root[data-theme=dark] .cap-node em.fresh{color:var(--accent)}.cap-btns{flex-wrap:wrap;justify-content:center;gap:6px;display:flex}.cap-link{display:none}.cap-net.cut:after{content:"network partition";background:var(--hue-practice);color:#fff;z-index:2;white-space:nowrap;border-radius:999px;padding:1px 9px;font-size:11px;font-weight:650;position:absolute;top:-6px;right:calc(33.33% - 6px);transform:translate(50%)}.cap-net.cut:before{content:"";border-left:2px dashed var(--hue-practice);z-index:0;width:0;position:absolute;top:0;bottom:0;right:calc(33.33% - 9px)}.cap-log{gap:6px;padding:8px 24px 24px;display:grid}.cap-log p{background:var(--surface-2);color:var(--ink-2);border-left:3px solid var(--line-strong);border-radius:10px;margin:0;padding:9px 12px;font-size:13.5px;line-height:1.45}.cap-log p.ok{border-left-color:var(--accent)}.cap-log p.bad{border-left-color:var(--hue-practice);color:var(--ink)}.cap-log p:first-child{background:var(--bg);box-shadow:var(--shadow)}@media (width<=900px){.est-grid{grid-template-columns:1fr;gap:18px}.ch-body{grid-template-columns:1fr}.ch-ring{width:100%;max-width:380px;margin:0 auto}}@media (width<=560px){.est-presets,.ch-controls,.ce-controls,.lb-controls,.cap-controls,.est-grid,.ch-body,.ce-results,.cap-log,.cap-stage{padding-inline:16px}.ce-detail,.lb-stage,.lb-table-wrap{margin-inline:16px}.ce-row{grid-template-columns:96px 1fr 40px;gap:10px;padding-inline:8px}.lab-field{flex-direction:column;gap:6px}.lab-input input,.lab-input{width:100%}.lab-input em{min-width:60px}.ch-compare{grid-template-columns:1fr}.cap-net{gap:8px}.cap-node{padding:12px 4px 10px}.cap-btns{flex-direction:column;width:100%;padding:0 6px}.cap-btns .chip-btn{width:100%}.lb-servers{gap:6px}.est-cards{grid-template-columns:1fr 1fr}}:root[data-theme=dark]:not([data-diagrams=original]) :is(.figure img,.fc-back img,.lightbox img){filter:invert(.9)hue-rotate(180deg)brightness(1.02)contrast(.95);box-shadow:none;border-color:#dcdcdc}.site-header{background:color-mix(in srgb, var(--bg) 92%, transparent)}.figure{position:relative}.fig-toggle{border:1px solid var(--line-strong);background:color-mix(in srgb, var(--surface) 88%, transparent);backdrop-filter:blur(6px);color:var(--ink-2);opacity:0;border-radius:999px;padding:4px 10px;font-size:11.5px;font-weight:600;transition:opacity .15s;display:none;position:absolute;top:10px;right:10px}:root[data-theme=dark] .fig-toggle{display:block}.figure:hover .fig-toggle,.fig-toggle:focus-visible{opacity:1}@media (hover:none){.fig-toggle{opacity:.9}}.drawer-head{display:none}@media (width<=960px){.sidebar{visibility:hidden;overscroll-behavior:contain;height:100dvh;padding-top:0;transition:transform .22s,visibility 0s linear .22s}body.nav-open .sidebar{visibility:visible;transition-delay:0s}body.nav-open{overflow:hidden}.drawer-head{z-index:2;background:var(--bg);border-bottom:1px solid var(--line);justify-content:space-between;align-items:center;margin:0 -16px 8px;padding:10px 16px 10px 26px;display:flex;position:sticky;top:0}.drawer-head strong{letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);font-size:13px}.nav-link,.nav-sub>summary{padding:10px 12px;font-size:15.5px}.icon-btn{width:42px;height:42px}.main{padding-bottom:56px}}@media (width<=560px){.site-header .inner{gap:4px;padding:0 8px 0 4px}.brand{margin-left:2px;font-size:15px}.article h1.title{font-size:2rem}.article .dek{font-size:1.06rem}.meta-row{gap:6px 14px;margin-bottom:22px}.concepts{margin-top:-4px}.steps{gap:8px}.steps a{padding:10px 12px;font-size:13px}.prose{line-height:1.7}.prose th,.prose td{padding:9px 12px}.prose table{font-size:.88rem}.code-block{border-radius:10px;margin-inline:-4px}.code-block pre{padding:12px;font-size:12.5px}.figure img{border-radius:10px;padding:8px}.callout{padding:12px 14px 2px}.sources summary{flex-wrap:wrap;gap:4px 8px;padding:11px 12px}.sources-body{padding:12px 14px 4px}.pager{margin-top:44px}.page-wrap{padding:0 16px}.hero-grid{padding-block:36px 32px}.hero h1{font-size:2.45rem}.hero .lede{margin-bottom:22px;font-size:1.05rem}.cta-row .btn{flex:100%;justify-content:center}.stat{padding:14px 16px}.stat b{font-size:1.6rem}.section{padding-top:40px}.section-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:18px}.card-grid{grid-template-columns:1fr;gap:12px}.topic-group+.topic-group{margin-top:28px}.page-hero{padding-top:0!important}.page-hero h1{font-size:2.1rem}.page-hero p{font-size:1.05rem}.path-card{padding:18px}.search-dialog{width:calc(100vw - 16px);margin-top:4vh}.search-input{font-size:16px}.search-results{max-height:62vh}.search-foot{display:none}.lightbox-inner{padding:12px}.lightbox img{padding:8px}.widget{border-radius:14px;margin-inline:-4px}.widget-head h3{font-size:1.3rem}.field input{width:96px}.fc-actions .btn{flex:100%;justify-content:center}.fc-actions .btn kbd{display:none}.fc-tools{width:100%}.widget input[type=number]{font-size:16px}.site-footer{margin-top:64px}.site-footer .inner{padding:28px 16px calc(28px + env(safe-area-inset-bottom))}}@media (width<=380px){.steps{grid-template-columns:1fr}.seg button{padding:7px 8px}.seg button small{display:none}}.widget .mini th{text-transform:none;letter-spacing:0;background:0 0;padding-left:0;font-size:14px;font-weight:400}.widget .mini th,.widget .mini td{padding-inline:0}.try-it{border:1px dashed color-mix(in srgb, var(--hue-labs) 55%, var(--line));background:color-mix(in srgb, var(--hue-labs) 6%, transparent);border-radius:14px;flex-wrap:wrap;align-items:stretch;gap:10px;margin:0 0 28px;padding:12px;display:flex}.try-label{background:var(--hue-labs);color:#fff;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;align-self:center;padding:3px 10px;font-size:11.5px;font-weight:700}:root[data-theme=dark] .try-label{color:#1b0f17}.try-it a{background:var(--surface);border:1px solid var(--line);border-radius:10px;flex:220px;gap:2px;padding:8px 12px;text-decoration:none;display:grid}.try-it a:hover{border-color:var(--hue-labs)}.try-it b{font-size:14.5px}.try-it small{color:var(--ink-3);font-size:12.5px;line-height:1.4}