:root { color-scheme: light; --ink: #252b2d; --muted: #596366; --link: #175c7a; --line: #dce1e3; }
* { box-sizing: border-box; }
html { scroll-padding-top: 7rem; }
body { margin: 0; background: #fff; color: var(--ink); font: 17px/1.7 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: .18em; overflow-wrap: anywhere; }
a:hover { color: #102f3f; }
a:focus-visible, summary:focus-visible, .table-wrap:focus-visible { outline: 2px solid var(--link); outline-offset: 4px; }
.skip-link { position: absolute; top: -100px; left: 1rem; z-index: 5; padding: .5rem 1rem; background: white; }
.skip-link:focus { top: 1rem; }
header { position: sticky; top: 0; background: #fff; border-bottom: 1px solid var(--line); z-index: 2; }
.header-inner { max-width: 1300px; margin: auto; padding: 1rem 2rem; display: flex; gap: 1.5rem; align-items: center; justify-content: space-between; }
.site-name { color: var(--ink); font-size: .95rem; font-weight: 650; text-decoration: none; white-space: nowrap; }
header nav { display: flex; gap: 1.4rem; font-size: .86rem; }
header nav a { white-space: nowrap; text-decoration: none; padding: .2rem 0; }
header nav a[aria-current] { color: var(--ink); border-bottom: 2px solid var(--ink); }
.layout { display: grid; grid-template-columns: 220px minmax(0, 870px); gap: 3.5rem; max-width: 1300px; margin: auto; padding: 3rem 2rem 5rem; }
aside { min-width: 0; }
.contents { position: sticky; top: 6.5rem; max-height: calc(100vh - 8rem); overflow-y: auto; padding-right: .6rem; font-size: .86rem; line-height: 1.5; }
.contents summary { font-weight: 650; cursor: pointer; margin-bottom: 1rem; }
.contents ol { list-style: none; padding: 0; margin: 0; }
.contents li { margin-bottom: .8rem; }
.contents a { color: var(--muted); text-decoration: none; }
.contents a:hover { color: var(--link); text-decoration: underline; }
main { min-width: 0; }
h1 { font: 600 2.25rem/1.2 Georgia, "Times New Roman", serif; letter-spacing: -.025em; margin: 0 0 1rem; }
h2 { font-size: 1.5rem; line-height: 1.35; margin: 3.2rem 0 1.1rem; }
h3 { font-size: 1.13rem; line-height: 1.5; margin: 2rem 0 .75rem; }
h4 { font-size: 1rem; }
p { margin: 0 0 1.15rem; }
.document-date { color: var(--muted); font-size: .85rem; margin-bottom: 2rem; }
ul, ol { padding-left: 1.5rem; }
li { margin: .45rem 0; }
li > p { margin: .4rem 0; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }
code { font-size: .9em; overflow-wrap: anywhere; }
.table-wrap { max-width: 100%; overflow-x: auto; margin: 1.5rem 0 2rem; }
table { width: 100%; border-collapse: collapse; min-width: 36rem; font-size: .87rem; line-height: 1.5; }
th, td { padding: .75rem .65rem; vertical-align: top; text-align: left; border-bottom: 1px solid var(--line); }
th { border-bottom: 2px solid #879397; font-weight: 650; }
th:first-child, td:first-child { padding-left: 0; }
blockquote { margin: 1.5rem 0; padding-left: 1.25rem; border-left: 2px solid var(--line); }
.doi-link { display: inline; margin-left: .35rem; font-size: .75em; white-space: nowrap; }
figure { margin: 2rem 0; }
figure p { margin: 0; }
img { display: block; max-width: 100%; height: auto; }
.figure-link { display: block; }
figcaption { margin-top: 1rem; font-size: .88rem; line-height: 1.65; color: #444d50; }
.bibliography { padding-left: 1.5rem; }
.bibliography li { padding: 1.25rem 0; border-bottom: 1px solid var(--line); }
.bibliography p { font-size: .9rem; margin: .4rem 0; }
.bibliography .citation { font-size: 1rem; font-weight: 600; line-height: 1.5; }
.bibliography .reference-meta { color: var(--muted); margin-bottom: .8rem; }
footer { border-top: 1px solid var(--line); max-width: 1300px; padding: 1.5rem 2rem; margin: auto; display: flex; justify-content: space-between; gap: 2rem; font-size: .8rem; color: var(--muted); }
@media (max-width: 1150px) { .header-inner { align-items: flex-start; flex-direction: column; gap: .5rem; } .layout { gap: 2rem; grid-template-columns: 190px minmax(0, 1fr); } .contents { top: 8rem; max-height: calc(100vh - 10rem); } }
@media (max-width: 999px) { header { position: static; } .layout { display: block; padding-top: 1.5rem; } .contents { position: static; max-height: none; border-bottom: 1px solid var(--line); padding: .5rem 0; margin-bottom: 2rem; } .contents summary { margin: 0 0 .5rem; } .contents nav { margin-top: 1rem; } html { scroll-padding-top: 1rem; } }
@media (max-width: 600px) { body { font-size: 16px; } .header-inner, .layout, footer { padding-left: 1.2rem; padding-right: 1.2rem; } header nav { width: 100%; flex-wrap: wrap; gap: .35rem 1rem; font-size: .8rem; } h1 { font-size: 1.85rem; } h2 { font-size: 1.3rem; } footer { flex-direction: column; gap: .5rem; } }
@media print { header, aside, footer, .skip-link { display: none; } .layout { display: block; padding: 0; max-width: none; } body { font-size: 10pt; } h1 { font-size: 23pt; } h2, h3 { break-after: avoid; } figure { break-inside: avoid; } a { color: inherit; } .table-wrap { overflow: visible; } table { min-width: 0; font-size: 8pt; } }