@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+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: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+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: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+??,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:Courier Prime;font-style:normal;font-display:swap;font-weight:400;src:url(/_astro/courier-prime-latin-400-normal.BbyBr73r.woff2)format("woff2"),url(/_astro/courier-prime-latin-400-normal.BAlbUm6l.woff)format("woff")}:root{--paper:#fbf7ef;--card:#f6f0e4;--rule:#d9cfbc;--rule-soft:#ede3ce;--margin-rule:#e2c9bf;--ink:#1b1a18;--ink-2:#2b2924;--soft:#5a554c;--line:#8c8272;--red:#a33b2a;--header:color-mix(in srgb, var(--paper) 95%, transparent);--press:#000;color-scheme:light dark;--serif:"Newsreader Variable", Georgia, "Times New Roman", serif;--mono:"Courier Prime", "Courier New", monospace}*,:before,:after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:80px;overflow-x:clip}body{background:var(--paper);color:var(--ink);font-family:var(--serif);-webkit-font-smoothing:antialiased;margin:0;font-size:1.188rem;line-height:1.65}a{color:var(--red);text-underline-offset:3px;text-decoration-thickness:1px}:focus-visible{outline:2px solid var(--red);outline-offset:3px}h1,h2,h3{margin:0;font-weight:500}p{margin:0}.mono{font-family:var(--mono)}.soft{color:var(--soft)}.red{color:var(--red)}.skip{position:absolute;left:-9999px}.skip:focus{z-index:50;background:var(--ink);color:var(--paper);padding:8px 12px;top:12px;left:16px}.site-header{top:env(safe-area-inset-top,0px);z-index:20;background:var(--header);border-bottom:1px solid var(--rule);backdrop-filter:blur(3px);position:sticky}.bar{flex-wrap:wrap;align-items:center;gap:12px 28px;max-width:1080px;margin:0 auto;padding:12px 24px;display:flex}.logo{min-height:44px;color:var(--ink);align-items:center;gap:10px;text-decoration:none;display:inline-flex}.logo svg{flex:none}.logo-word{letter-spacing:.005em;font-size:1.562rem;font-weight:600;line-height:1}.logo-word span{color:var(--red);font-weight:400}.site-footer .logo-word{font-size:1.25rem}.wordmark{color:var(--ink);letter-spacing:.01em;font-size:1.438rem;font-weight:600;text-decoration:none}.nav{font-family:var(--mono);flex-wrap:wrap;align-items:center;gap:10px 22px;margin-left:auto;font-size:.9688rem;display:flex}.nav a{color:var(--ink)}.nav a[aria-current=page]{color:var(--red)}.lang{border:1px solid var(--rule);padding:2px 7px;text-decoration:none;color:var(--soft)!important}.btn{background:var(--ink);font-family:var(--mono);letter-spacing:.02em;cursor:pointer;border:none;padding:13px 24px;font-size:1rem;text-decoration:none;display:inline-block;color:var(--paper)!important}@media (hover:hover){a:hover{color:var(--ink)}.btn:hover{background:var(--red)}.btn-ghost:hover{background:var(--card)}}.btn{transition:transform .1s ease-out,background-color .1s ease-out}.btn:active{background:var(--press);transform:scale(.97)}.btn-ghost:active{background:var(--rule)}.btn[aria-busy=true]{opacity:.6;cursor:progress;transform:none}.btn-sm{padding:9px 16px;font-size:.9688rem}.btn-ghost{border:1px solid var(--ink);background:0 0;color:var(--ink)!important}.site-footer{border-top:1px solid var(--rule);background:var(--card)}.site-footer .bar{font-family:var(--mono);color:var(--soft);align-items:center;padding:28px 24px;font-size:.9375rem}.push{margin-left:auto}.menu{margin-left:auto;display:none;position:relative}.menu summary{cursor:pointer;font-family:var(--mono);border:1px solid var(--ink);padding:8px 14px;font-size:1rem;list-style:none}.menu summary::-webkit-details-marker{display:none}.menu[open] summary{background:var(--ink);color:var(--paper)}.menu-panel{background:var(--paper);border:1px solid var(--ink);width:min(300px,100vw - 32px);box-shadow:4px 4px 0 var(--rule);font-family:var(--mono);flex-direction:column;padding:8px 18px 18px;font-size:1.062rem;display:flex;position:absolute;top:calc(100% + 10px);right:0}.menu-panel a:not(.btn){color:var(--ink);border-bottom:1px solid var(--rule);padding:12px 0}.menu-panel .btn{text-align:center;margin-top:16px}main{max-width:1080px;margin:0 auto;padding:0 24px}.entry{border-top:1px solid var(--rule);flex-wrap:wrap;gap:24px 40px;padding:72px 0;display:flex}.entry.first{border-top:none;padding:clamp(48px,9vh,104px) 0 64px}.entry.tinted{background:var(--card);margin:0 calc(50% - 50vw);padding-left:calc(50vw - 50%);padding-right:calc(50vw - 50%)}.margin{font-family:var(--mono);color:var(--soft);flex:0 170px;font-size:.9375rem;line-height:1.7}.margin .num{color:var(--red)}.margin .note{border-top:1px solid var(--rule);margin-top:12px;padding-top:8px}.body{flex:auto;max-width:760px}.body.wide{max-width:820px}h1{letter-spacing:-.015em;margin-bottom:24px;font-size:clamp(2.375rem,6vw,4rem);line-height:1.08}h2{letter-spacing:-.01em;margin-bottom:24px;font-size:clamp(1.812rem,3.6vw,2.5rem);line-height:1.2}h3{margin:32px 0 10px;font-size:1.438rem}.lede{max-width:34em;color:var(--ink-2);font-size:clamp(1.312rem,2.3vw,1.5rem);line-height:1.55}.prose p,.prose ul,.prose ol{max-width:36em;font-size:1.25rem;line-height:1.65}.prose p+p,.prose p+ul,.prose ul+p,.prose p+ol,.prose ol+p{margin-top:18px}.prose ul,.prose ol{margin:18px 0 0;padding-left:1.2em}.prose li+li{margin-top:8px}.aside-note{font-family:var(--mono);color:var(--soft);margin-top:18px;font-size:1rem;line-height:1.65}.actions{flex-wrap:wrap;align-items:center;gap:18px 28px;margin-top:34px;display:flex}.actions a:not(.btn){font-family:var(--mono);font-size:1rem}.steps{margin:0;padding:0;list-style:none}.steps li{border-top:1px solid var(--rule);align-items:baseline;gap:20px;padding:18px 0;font-size:1.25rem;display:flex}.steps li:last-child{border-bottom:1px solid var(--rule)}.steps .n{font-family:var(--mono);color:var(--red);flex:0 0 26px;font-size:1rem}.steps .t small{font-family:var(--mono);color:var(--soft);margin-top:4px;font-size:1rem;line-height:1.55;display:block}.ledger{border-collapse:collapse;width:100%;font-size:1.188rem}.ledger th{text-align:left;border-bottom:1.6px solid var(--ink);font-family:var(--mono);letter-spacing:.04em;color:var(--soft);padding:0 0 10px;font-size:.9062rem;font-weight:400}.ledger td{border-bottom:1px solid var(--rule);vertical-align:top;padding:14px 0}.ledger td+td,.ledger th+th{text-align:right;padding-left:16px}.ledger .amt{font-family:var(--mono);white-space:nowrap}.ledger caption{text-align:left;font-family:var(--mono);color:var(--soft);padding-bottom:8px;font-size:.9375rem}.table-wrap{overflow-x:auto}.notes{font-family:var(--mono);color:var(--soft);flex-wrap:wrap;gap:18px 32px;margin-top:26px;font-size:1rem;line-height:1.6;display:flex}.notes p{border-left:2px solid var(--margin-rule);flex:280px;padding-left:14px}.criteria{counter-reset:c;margin:0;padding:0;list-style:none}.criteria li{border-top:1px solid var(--rule);padding:18px 0 18px 44px;position:relative}.criteria li:last-child{border-bottom:1px solid var(--rule)}.criteria li:before{counter-increment:c;content:counter(c);border:1.4px solid var(--ink);width:26px;height:26px;font-family:var(--mono);text-align:center;border-radius:50%;font-size:.875rem;line-height:24px;position:absolute;top:18px;left:0}.criteria strong{font-size:1.312rem;font-weight:600}.criteria p{color:var(--ink-2);max-width:38em;margin-top:4px;font-size:1.188rem}.proof{border:1px solid var(--rule);border-left:3px double var(--red);background:var(--card);margin:0;padding:clamp(24px,4vw,44px)}.proof p{max-width:26em;font-size:clamp(1.375rem,2.6vw,1.75rem);line-height:1.45}.proof footer{font-family:var(--mono);color:var(--soft);flex-wrap:wrap;align-items:baseline;gap:8px 24px;margin-top:32px;font-size:.9375rem;display:flex}.proof .sig{border-bottom:1.5px solid var(--red);color:var(--ink);padding-bottom:2px}.form{flex-direction:column;gap:20px;max-width:620px;display:flex}.field{flex-direction:column;gap:6px;display:flex}.field>span{font-family:var(--mono);color:var(--soft);font-size:.9375rem}.field input,.field select,.field textarea{font-family:var(--serif);border:none;border-bottom:1px solid var(--line);min-height:44px;color:var(--ink);background:0 0;border-radius:0;width:100%;padding:10px 0;font-size:1.188rem}.field-err{font-family:var(--mono);color:var(--red);min-height:0;font-size:.9375rem}.field-err:empty{display:none}.field textarea{background:var(--card);border:1px solid var(--rule);resize:vertical;padding:10px 12px;line-height:1.55}.field [aria-invalid=true]{border-color:var(--red);border-bottom-width:2px}.row{flex-wrap:wrap;gap:20px;display:flex}.row>.field{flex:200px}.hp{width:1px;height:1px;position:absolute;left:-9999px;overflow:hidden}.form-foot{flex-wrap:wrap;align-items:center;gap:14px 24px;margin-top:6px;display:flex}.form-status{font-family:var(--mono);min-height:1.6em;font-size:1rem}.form-status.err{color:var(--red)}.form-done{border:1px solid var(--rule);background:var(--card);padding:24px}.form-done h3{margin-top:0}.form-small{font-family:var(--mono);color:var(--soft);max-width:60ch;font-size:.9375rem;line-height:1.55}.fig{border-top:1px solid var(--rule);padding:72px 0}.fig-head{font-family:var(--mono);margin-bottom:18px;font-size:.9375rem;display:flex}.fig-head .tag{border:1px solid var(--red);color:var(--red);padding:2px 10px}.fig-title{letter-spacing:-.01em;max-width:30ch;margin:0 0 8px;font-size:clamp(1.625rem,3.2vw,2.125rem);line-height:1.25}.fig-caption{max-width:44em;color:var(--ink-2);margin-top:28px;font-size:1.25rem;line-height:1.6}.fig svg{width:100%;height:auto;display:block}.fig svg text{font-family:var(--serif)}.fig svg .m{font-family:var(--mono)}.loop-wide{max-width:100%}.loop-wide text.m{font-size:1.062rem}.loop-narrow{counter-reset:s;margin:0;padding:0;list-style:none}.loop-narrow li{border-top:1px solid var(--rule);grid-template-columns:44px 1fr;align-items:baseline;gap:2px 12px;padding:12px 0;display:grid}.loop-narrow .k{font-family:var(--mono);color:var(--red);font-size:.9375rem}.loop-narrow .v{font-size:1.312rem}.loop-narrow .m{font-family:var(--mono);color:var(--soft);grid-column:2;font-size:.9375rem}.loop-narrow li.again .v{font-family:var(--mono);color:var(--soft);font-size:.9375rem}.stub-narrow{margin-top:20px}.pool{grid-template-columns:minmax(0,1.5fr) minmax(0,1fr);align-items:start;gap:32px 56px;display:grid}.pool .ledger td{padding:13px 0}.pool .ledger tr.total td{border-top:1.6px solid var(--ink);border-bottom:none;font-weight:600}.tape{border:1px solid var(--rule);background:var(--card);font-family:var(--mono);color:var(--soft);padding:22px 24px;font-size:.9375rem}.tape .big{color:var(--ink);font-variant-numeric:tabular-nums;margin:4px 0 14px;font-size:clamp(1.875rem,3.4vw,2.5rem);display:block}.tape .times{border-top:1px dashed var(--line);padding-top:12px;display:block}.tape .credit{color:var(--red);font-variant-numeric:tabular-nums;margin-top:4px;font-size:clamp(1.875rem,3.4vw,2.5rem);display:block}.tape .under{background:var(--red);transform-origin:0;height:2px;margin-top:4px;display:block}@media (width<=760px){.wide-only{display:none!important}.pool{grid-template-columns:1fr}}@media (width>=761px){.narrow-only{display:none!important}}@media (scripting:enabled) and (prefers-reduced-motion:no-preference){.fig [data-step]{transition:opacity .45s ease-out var(--d,0s), transform .45s ease-out var(--d,0s), stroke-dashoffset var(--t,1.4s) cubic-bezier(.45, 0, .2, 1) var(--d,0s)}.fig:not(.in) [data-step]{opacity:0;transform:translateY(8px)}.fig:not(.in) [data-step].draw{opacity:1;stroke-dashoffset:var(--len);transform:none}.fig:not(.in) .tape .under{transform:scaleX(0)}}.consent{left:16px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom,0px));z-index:40;background:var(--paper);border:1px solid var(--ink);max-width:560px;font-family:var(--mono);box-shadow:4px 4px 0 var(--rule);margin:0 auto;padding:16px 18px;font-size:.9375rem;line-height:1.6;position:fixed}.consent .actions{gap:12px;margin-top:12px}.consent .btn{padding:8px 14px;font-size:.9375rem}@media (width<=860px){.nav{display:none}.menu{display:block}.margin{flex-wrap:wrap;flex-basis:100%;gap:2px 12px;display:flex}.margin .note{display:none}.entry{gap:10px 40px;padding:52px 0}.entry.first{padding:36px 0 44px}.fig{padding:52px 0}}.site-footer a,.actions a:not(.btn),.aside-note a,.lang{align-items:center;min-height:44px;display:inline-flex}.site-footer .bar{row-gap:0}.lang{justify-content:center;min-width:44px}@keyframes menu-in{0%{opacity:0;transform:scale(.94)}to{opacity:1;transform:none}}.menu-panel{transform-origin:100% 0}.menu[open] .menu-panel{animation:.16s ease-out menu-in}.menu.closing .menu-panel{animation:.12s ease-in reverse forwards menu-in}.menu-panel a[aria-current=page]{color:var(--red)}@supports (animation-timeline:scroll()){@keyframes header-edge{0%{border-bottom-color:#0000}to{border-bottom-color:var(--rule)}}.site-header{animation:linear both header-edge scroll(root);animation-range:0 48px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.btn,.btn:active{transition:none;transform:none}.menu[open] .menu-panel,.menu.closing .menu-panel{animation-name:fade}@keyframes fade{0%{opacity:0}}}@media (prefers-reduced-transparency:reduce){:root{--header:var(--paper)}.site-header{backdrop-filter:none}}svg [fill=\#1B1A18]{fill:var(--ink)}svg [fill=\#5A554C]{fill:var(--soft)}svg [fill=\#A33B2A]{fill:var(--red)}svg [fill=\#F6F0E4]{fill:var(--card)}svg [fill=\#FBF7EF]{fill:var(--paper)}svg [stroke=\#1B1A18]{stroke:var(--ink)}svg [stroke=\#A33B2A]{stroke:var(--red)}svg [stroke=\#B9AE99]{stroke:var(--line)}svg [stroke=\#D9CFBC]{stroke:var(--rule)}svg [stroke=\#E2C9BF]{stroke:var(--margin-rule)}@media (prefers-contrast:more){:root{--rule:#8c8272;--margin-rule:#8c8272;--line:#5a554c;--soft:#3b3731}.site-header{backdrop-filter:none;--header:var(--paper)}}@media (prefers-color-scheme:dark){:root{--paper:#1c1a17;--card:#25221e;--rule:#3d3831;--rule-soft:#2e2a25;--margin-rule:#4a3a33;--ink:#ede6d8;--ink-2:#d9d1c2;--soft:#b0a797;--line:#8a8070;--red:#e3826b;--press:#fff}.btn{color:var(--paper)!important}.btn-ghost{color:var(--ink)!important}}