@font-face{font-family:Fraunces;src:url(/fonts/fraunces.woff2) format("woff2");font-weight:500 600;font-style:normal;font-display:swap}
@font-face{font-family:"Instrument Sans";src:url(/fonts/instrument-sans.woff2) format("woff2");font-weight:400 600;font-style:normal;font-display:swap}
:root{--bg:#f3f8fd;--surf:#fff;--ink:#12263a;--mut:#4f6478;--line:#d3e2f1;--acc:#1a6fc2;--acc2:#124f8f;--on:#fff;--warn:#fbeee0;--warnb:#b4560f;box-sizing:border-box;padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
@media (prefers-color-scheme:dark){
:root:not([data-theme="light"]){--on:#06201f;--bg:#0d1724;--surf:#142235;--ink:#e6eef7;--mut:#9db0c5;--line:#243a52;--acc:#6db3f2;--acc2:#9ccbf7;--warn:#2b2015;--warnb:#f0a86a}
}
:root[data-theme="dark"]{--on:#06201f;--bg:#0d1724;--surf:#142235;--ink:#e6eef7;--mut:#9db0c5;--line:#243a52;--acc:#6db3f2;--acc2:#9ccbf7;--warn:#2b2015;--warnb:#f0a86a}
*{box-sizing:border-box}
html{scroll-padding-top:env(safe-area-inset-top,0px);scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 "Instrument Sans",system-ui,sans-serif}
h1,h2,h3{font-family:Fraunces,Georgia,serif;font-weight:600;line-height:1.15;margin:0 0 .6em}
h1{font-size:clamp(2.1rem,5.5vw,3.6rem);max-width:none;text-wrap:balance}
h2{font-size:clamp(1.6rem,3.5vw,2.2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em;max-width:68ch}
a{color:var(--acc)}
.w{max-width:1040px;margin:0 auto;padding:0 20px}
header{position:sticky;top:env(safe-area-inset-top,0px);z-index:20}
body::before{content:"";position:fixed;inset:0 0 auto;height:env(safe-area-inset-top,0px);z-index:30}
header .w{display:flex;justify-content:space-between;align-items:center;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.logo{font-family:Fraunces,serif;font-weight:600;font-size:1.45rem;line-height:1.1;display:block}
nav{display:flex;font-size:1rem;flex-wrap:wrap}
nav a{color:var(--on);text-decoration:none;opacity:.92}
nav a:hover,nav a:focus-visible{opacity:1;text-decoration:underline}
.hero{border-bottom:1px solid var(--line)}
.hero p{font-size:1.1rem;color:var(--mut)}
a:focus-visible{outline:3px solid var(--acc2);outline-offset:2px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:28px}
@media(max-width:720px){
.two{grid-template-columns:1fr}
}
.box{background:var(--surf);border:1px solid var(--line);border-radius:8px}
ul{padding-left:1.2em;margin:0 0 1em}
li{margin-bottom:.4em}
.scroll{border:1px solid var(--line);border-radius:8px;background:var(--surf)}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:.95rem}
th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{background:var(--acc);color:#fff}
:root[data-theme="dark"] th{color:#06201f}
@media (prefers-color-scheme:dark){
:root:not([data-theme="light"]) th{color:#06201f}
}
tr:last-child td{border-bottom:0}
.warn{background:var(--warn)}
details{background:var(--surf);border:1px solid var(--line);border-radius:8px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600;padding:10px 0}
details[open] summary{margin-bottom:0}
.dd{position:relative}
.dd>button{font:inherit;background:none;cursor:pointer;white-space:nowrap}
.dd>button::after{content:"\25BE";margin-left:5px;font-size:.8em}
.dd-m{display:none;position:absolute;left:0;min-width:210px;background:var(--surf);border:1px solid var(--line);padding:6px;z-index:5;flex-direction:column}
.dd:hover .dd-m,.dd:focus-within .dd-m{display:flex}
.dd-m a{padding:11px 14px;border-radius:6px;white-space:nowrap;color:var(--ink);opacity:1}
.dd-m a:hover{background:var(--bg)}
.tp{display:block;text-align:center;font-weight:600;border-radius:999px;text-decoration:none;white-space:nowrap}
nav a.tp{opacity:1}
.tp:hover,.tp:focus-visible,nav a.tp:hover{text-decoration:none}
.tag{display:block;font-size:.75rem;line-height:1.2}
details>p:last-child{margin-bottom:0}
details summary:hover{color:var(--acc)}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand svg{width:44px;height:44px;padding:0;border-radius:50%;flex:none}
.dd:last-child .dd-m{left:auto;right:0}
@media(max-width:720px){
nav{width:100%;display:grid}
.dd{min-width:0}
nav .dd:nth-child(even) .dd-m{left:auto;right:0}
.tp{padding:10px 4px;font-size:.9rem}
.dd>button{width:100%;padding:10px 4px;font-size:.9rem}
.dd>button::after{margin-left:3px}
.dd-m{min-width:170px}
}
@media(max-width:380px){
.tp{font-size:.8rem}
.dd>button{font-size:.8rem}
.logo{font-size:1.25rem}
.brand svg{width:38px;height:38px;padding:0}
}
footer{font-size:.9rem}
h2{margin-top:0;text-wrap:balance}
h3{margin-top:1.4em;text-wrap:balance}
section>.w>h3:first-child,.box>h3:first-child{margin-top:0}
p,li{text-wrap:pretty}
li{max-width:68ch}
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;hanging-punctuation:first}
h2[id]{scroll-margin-top:90px}
.toc{margin:0}
.toc ol{margin:10px 0 2px;padding-left:1.4em;columns:2;column-gap:32px}
.toc li{break-inside:avoid;margin-bottom:.35em;max-width:none}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}
.totop{position:fixed;right:max(16px,env(safe-area-inset-right,0px));bottom:max(16px,env(safe-area-inset-bottom,0px));z-index:25;width:46px;height:46px;border-radius:50%;background:var(--acc);color:var(--on);display:flex;align-items:center;justify-content:center;text-decoration:none;font-size:1.4rem;line-height:1;box-shadow:0 4px 16px rgba(10,40,80,.3);opacity:0;visibility:hidden;transition:opacity .2s,visibility .2s}
.totop.show{opacity:1;visibility:visible}
.totop:focus-visible{outline:3px solid var(--ink);outline-offset:3px}
@media(max-width:720px){
.toc ol{columns:1}
h2[id]{scroll-margin-top:12px}
}
@media(prefers-reduced-motion:reduce){
html{scroll-behavior:auto}
.totop{transition:none}
}
.dd.cur>button,.tp[aria-current]{background:color-mix(in srgb,var(--on) 20%,transparent)}
.dd-m a[aria-current]{background:var(--bg);color:var(--acc);font-weight:600}
.dd[data-closed] .dd-m{display:none!important}
:root{--sh:0 1px 2px rgba(18,38,58,.05),0 8px 24px rgba(18,38,58,.07);--r:14px}
@media (prefers-color-scheme:dark){
:root:not([data-theme="light"]){--sh:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.28)}
}
:root[data-theme="dark"]{--sh:0 1px 2px rgba(0,0,0,.3),0 8px 24px rgba(0,0,0,.28)}
section{padding:68px 0}
.hero{padding:72px 0 56px;background:linear-gradient(180deg,color-mix(in srgb,var(--acc) 9%,var(--bg)) 0,var(--bg) 100%)}
.tocs{padding:24px 0;background:var(--bg)}
main>section:not([class]):nth-of-type(odd){background:var(--surf)}
main>section:not([class]):nth-of-type(odd) .box,main>section:not([class]):nth-of-type(odd) details,main>section:not([class]):nth-of-type(odd) .scroll{background:var(--bg)}
main>section:not([class]):nth-of-type(odd) .scroll table{background:var(--bg)}
section{border-bottom:0}
h2:not(.nb)::after{content:"";display:block;width:56px;height:4px;border-radius:4px;background:var(--acc);margin-top:14px}
.box,details,.scroll{border-radius:var(--r);box-shadow:var(--sh)}
.box{padding:24px}
details{padding:6px 22px;transition:border-color .15s}
details[open]{border-color:var(--acc)}
details>summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
details>summary::-webkit-details-marker{display:none}
details>summary::after{content:"+";flex:none;width:28px;height:28px;border-radius:50%;background:color-mix(in srgb,var(--acc) 14%,transparent);color:var(--acc);display:flex;align-items:center;justify-content:center;font-size:1.3rem;line-height:1;font-weight:500}
details[open]>summary::after{content:"\2212"}
details.toc>summary{justify-content:flex-start}
details.toc>summary::after{display:none}
details.toc>summary::before{content:"\2630";margin-right:12px;color:var(--acc)}
details[open]>summary{padding-bottom:6px}
details[open]>:not(summary){padding-bottom:4px}
.scroll{overflow-x:auto}
.scroll table{border-radius:var(--r)}
th{font-weight:600;letter-spacing:.01em;white-space:nowrap}
tbody tr:nth-child(even) td{background:color-mix(in srgb,var(--acc) 5%,transparent)}
tbody tr:hover td{background:color-mix(in srgb,var(--acc) 9%,transparent)}
td:first-child{font-weight:600}
.warn{border-radius:var(--r);border:1px solid color-mix(in srgb,var(--warnb) 35%,transparent);border-left:5px solid var(--warnb);box-shadow:var(--sh);padding:20px 24px}
@media(max-width:720px){
section{padding:44px 0}
.hero{padding:40px 0 36px}
.box{padding:20px}
details{padding:4px 16px}
h2:not(.nb)::after{width:44px;margin-top:12px}
}
@media(prefers-reduced-motion:reduce){
details{transition:none}
}
header{background:color-mix(in srgb,color-mix(in srgb,var(--acc) 9%,var(--bg)) 85%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);box-shadow:none;padding:14px 20px 6px;color:var(--ink)}
body::before{background:color-mix(in srgb,var(--acc) 9%,var(--bg))}
header .w{max-width:1100px;background:var(--surf);border-radius:999px;box-shadow:0 2px 6px rgba(18,38,58,.06),0 12px 32px rgba(18,38,58,.12);padding:9px 10px 9px 20px;border:1px solid var(--line)}
.brand{color:var(--ink)}
.brand svg{background:none;filter:drop-shadow(0 0 .6px rgba(20,40,70,.55)) drop-shadow(0 1px 1.5px rgba(20,40,70,.18))}
.logo{color:var(--acc2)}
.tag{color:var(--mut);opacity:1}
nav{gap:4px;align-items:center}
.dd>button{border:0;color:var(--ink);padding:11px 18px;font-weight:600;border-radius:999px}
.dd:hover>button,.dd:focus-within>button{background:color-mix(in srgb,var(--acc) 10%,transparent);color:var(--acc)}
.dd.cur>button{background:color-mix(in srgb,var(--acc) 12%,transparent);color:var(--acc)}
.tp{background:var(--acc);color:#fff;border:0;padding:12px 24px;margin-left:6px;box-shadow:0 6px 16px color-mix(in srgb,var(--acc) 40%,transparent)}
.tp:hover,.tp:focus-visible{background:var(--acc2);color:#fff}
.dd-m{top:calc(100% + 10px);border-radius:16px;box-shadow:0 16px 40px rgba(18,38,58,.2)}
.dd-m::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
header a:focus-visible,header button:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
@media(max-width:720px){
header{padding:10px 12px 4px}
header .w{border-radius:28px;padding:12px 14px}
nav{grid-template-columns:1fr 1fr;gap:6px}
.dd>button,.tp{border:1.5px solid var(--line);margin:0;padding:10px 4px;text-align:center}
.tp{border-color:var(--acc)}
}
footer{margin-top:0;background:var(--acc2);border-radius:32px 32px 0 0;padding:44px 0;color:#fff}
footer .w{max-width:1100px}
@media(max-width:720px){
footer{border-radius:24px 24px 0 0;padding-bottom:68px}
}
.tp,nav a.tp{background:none;color:var(--ink);border:0;box-shadow:none;margin-left:0;padding:11px 18px;font-weight:600;border-radius:999px}
.tp:hover,.tp:focus-visible,nav a.tp:hover{background:color-mix(in srgb,var(--acc) 10%,transparent);color:var(--acc)}
.tp[aria-current]{background:color-mix(in srgb,var(--acc) 12%,transparent);color:var(--acc)}
@media(max-width:720px){
.tp,nav a.tp{border:1.5px solid var(--line);padding:10px 4px;margin:0}
.tp[aria-current]{border-color:var(--line)}
}
.subs{list-style:none;margin:40px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.subs li{margin:0;max-width:none}
.subs a{display:flex;flex-direction:column;align-items:center;gap:14px;background:var(--surf);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:26px 12px 22px;text-decoration:none;color:var(--ink);font-family:Fraunces,Georgia,serif;font-weight:600;font-size:1.25rem;transition:border-color .15s,transform .15s,box-shadow .15s}
.subs svg{width:100px;height:125px;display:block}
.subs a:hover,.subs a:focus-visible{border-color:var(--acc);transform:translateY(-2px);box-shadow:0 10px 28px rgba(18,38,58,.14)}
.subs a:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
@media(max-width:720px){
.subs{gap:10px;margin-top:28px}
.subs a{padding:18px 6px 16px;font-size:1rem;gap:10px}
.subs svg{width:64px;height:80px}
}
@media(prefers-reduced-motion:reduce){
.subs a{transition:none}
.subs a:hover{transform:none}
}
@media(max-width:720px){
header{position:sticky;top:env(safe-area-inset-top,0px);transition:transform .25s ease}
header.hide{transform:translateY(-130%)}
body::before{display:block}
}
@media(prefers-reduced-motion:reduce){
header{transition:none}
}