:root { color-scheme: light dark; --background:#fff; --surface:#f5f5f7; --ink:#252527; --muted:#626268; --line:#dedee2; --pink:#eaa39a; --blue:#82c4e7; --yellow:#f1ce7b; --green:#a6cc89; --notice:#fbf4e3; --link:#315f77; font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif; font-size:100%; }
* { box-sizing:border-box; }
body { margin:0; background:var(--background); color:var(--ink); line-height:1.95; overflow-wrap:anywhere; }
a { color:var(--link); text-underline-offset:.25em; }
a:hover { text-decoration-thickness:2px; }
a:focus-visible,summary:focus-visible { outline:3px solid var(--link); outline-offset:5px; border-radius:3px; }
.skip { position:absolute; left:1rem; top:-6rem; padding:.75rem; background:var(--background); z-index:2; }
.skip:focus { top:1rem; }
.site-header,.site-footer,main { width:min(100% - 3rem,72rem); margin-inline:auto; }
.site-header { display:flex; align-items:center; justify-content:space-between; gap:1rem; padding-block:1.5rem; border-bottom:1px solid var(--line); }
.brand { display:inline-flex; align-items:center; gap:.65rem; text-decoration:none; color:var(--ink); font-weight:650; font-size:1.25rem; min-height:3rem; }
.brand img { width:2.5rem; height:2.5rem; border-radius:.65rem; }
.brand-note,.eyebrow { color:var(--muted); font-size:.75rem; letter-spacing:.12em; }
main { padding-block:3.5rem 5rem; }
.page-heading { max-width:48rem; margin-bottom:2.5rem; }
h1 { font-size:clamp(1.6rem,4vw,2.75rem); font-weight:600; letter-spacing:.01em; line-height:1.5; margin:.6rem 0 1rem; }
.lead { color:var(--muted); margin:0 0 1rem; }
.meta { color:var(--muted); font-size:.85rem; }
.layout { display:grid; grid-template-columns:14rem minmax(0,45rem); gap:4rem; align-items:start; }
.toc { position:sticky; top:1.5rem; font-size:.85rem; }
.toc h2 { font-size:.8rem; color:var(--muted); font-weight:500; letter-spacing:.12em; margin:0 0 .75rem; }
.toc ol { padding:0; list-style:none; margin:0; }
.toc a { display:flex; align-items:center; min-height:3rem; padding:.4rem 0; color:var(--muted); text-decoration:none; border-bottom:1px solid var(--line); }
.toc a:hover { color:var(--ink); }
article { min-width:0; }
article section { scroll-margin-top:2rem; padding-bottom:1.5rem; margin-bottom:1.5rem; border-bottom:1px solid var(--line); }
article h2 { font-size:1.2rem; line-height:1.65; font-weight:600; margin:0 0 1rem; }
article h3 { font-size:1rem; margin-top:1.5rem; }
p { margin:0 0 1rem; }
ul,ol { padding-left:1.5rem; }
li+li { margin-top:.45rem; }
.summary { background:var(--surface); border-radius:1rem; padding:1.5rem; margin-bottom:2rem; }
.summary h2 { margin-top:0; font-size:1rem; }
.summary ul { margin-bottom:0; }
.contact { display:inline-flex; min-height:3rem; align-items:center; font-weight:600; }
.site-footer { padding-block:2rem; border-top:1px solid var(--line); font-size:.85rem; color:var(--muted); }
.site-footer nav { display:flex; flex-wrap:wrap; gap:.5rem 1.5rem; margin-bottom:1.5rem; }
.site-footer nav a { display:inline-flex; align-items:center; min-height:3rem; }
.site-footer p { margin-bottom:0; }
@media(max-width:760px) { .site-header,.site-footer,main { width:calc(100% - 2rem); } main { padding-block:2rem 3rem; } .brand-note { display:none; } .layout { grid-template-columns:minmax(0,1fr); gap:2rem; } .toc { position:static; } .toc ol { display:grid; grid-template-columns:minmax(0,1fr); } }
@media(prefers-color-scheme:dark) { :root { --background:#171719; --surface:#242427; --ink:#f1f1f2; --muted:#b4b4bc; --line:#424248; --notice:#302a1c; --link:#a5d5ef; } }
@media print { :root { color-scheme:light; --background:#fff; --ink:#000; --muted:#444; --line:#ccc; --surface:#f7f7f7; --notice:#fff; --link:#000; } .site-header,.site-footer,.toc,.skip { display:none; } main { width:100%; padding:0; } .layout { display:block; } h2,h3 { break-after:avoid; } p,li { orphans:3; widows:3; } }