:root { --ink:#14213d; --navy:#0B132B; --cyan:#0891B2; --accent:#2563EB; --muted:#4a5468; --line:#d8deea;
  --bg:#ffffff; --card:#f6f8fc; --hl:#fff6d6; }
@media (prefers-color-scheme: dark) { :root { --ink:#e6ebf5; --muted:#a3adc2; --line:#27324a; --bg:#0b1220;
  --card:#111a2e; --hl:#2b2a12; --cyan:#35C6E6; --accent:#6d9bff; } }
* { box-sizing: border-box; }
html { scroll-padding-top: 130px; }
@media (max-width: 640px) { html { scroll-padding-top: 175px; } }
html.hub { scroll-padding-top: 165px; }
@media (max-width: 640px) { html.hub { scroll-padding-top: 215px; } }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 Inter, "Segoe UI", Arial, sans-serif; }
a { color: var(--accent); }
header.top { background: #040810; color: #fff; padding: 22px 16px 18px; }
header.top .wrap, main, footer .wrap { max-width: 920px; margin: 0 auto; }
.wm { font: 900 22px/1 Montserrat, Arial, sans-serif; letter-spacing: 5px; }
.wm small { display: block; font: 700 11px/1.6 Montserrat, Arial, sans-serif; letter-spacing: 5px; color: #fff; margin-top: 3px; }
header.top nav.site { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
header.top nav.site a { text-decoration: none; }
header.top nav.site > span { display: flex; flex-wrap: wrap; align-items: center; row-gap: 6px; }
header.top nav.site > span a { color: #b9c4d8; text-decoration: none; font-size: 14px; margin-left: 14px; }
header.top nav.site > span a:hover { color: #35C6E6; }
header.top nav.site .navsearch { display: inline-flex; margin-left: 14px; }
header.top nav.site .navsearch input { width: 140px; font: 14px Inter, Arial, sans-serif; padding: 4px 9px; border: 1px solid #1f4d66; border-radius: 999px; background: rgba(4,8,16,.6); color: #fff; }
header.top nav.site .navsearch-link { display: none; }
@media (max-width: 760px) { header.top nav.site .navsearch { display: none; } header.top nav.site .navsearch-link { display: inline; } header.top nav.site > span a { margin: 0 14px 0 0; } }
header.top h1 { font: 800 26px/1.2 Montserrat, Arial, sans-serif; margin: 16px 0 4px; }
header.top h1 .code { color: #35C6E6; }
header.top p { margin: 0; color: #b9c4d8; font-size: 14px; }
.bar { position: sticky; top: 0; z-index: 5; background: var(--bg); border-bottom: 1px solid var(--line); padding: 10px 16px 8px; }
.bar .wrap { max-width: 920px; margin: 0 auto; }
#q { width: 100%; font: inherit; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--card); color: var(--ink); }
.az { display: flex; flex-wrap: wrap; gap: 2px 8px; margin-top: 8px; font: 700 13px "Space Mono", Consolas, monospace; }
.az a { text-decoration: none; color: var(--cyan); }
.az span { color: var(--line); }
#count { font-size: 13px; color: var(--muted); margin-top: 6px; }
main { padding: 8px 16px 40px; }
h2.letter { font: 800 20px Montserrat, Arial, sans-serif; color: var(--cyan); border-bottom: 2px solid var(--cyan); margin: 26px 0 6px; padding-bottom: 2px; }
.e { padding: 10px 12px; border-bottom: 1px solid var(--line); border-radius: 6px; }
.e:target { background: var(--hl); }
.e h3 { margin: 0; font-size: 16px; }
.e h3 .al { font-weight: 400; color: var(--muted); }
.e h3 a.self { color: inherit; text-decoration: none; }
.e p { margin: 3px 0 0; }
.e h3, .e p { overflow-wrap: anywhere; }
.e .ref { font-size: 14px; margin-top: 3px; }
.e .ref a::after { content: " \2197"; }
.e.see p { color: var(--muted); }
.hidden { display: none; }
footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 13px; padding: 18px 16px 30px; }
@media print { .bar, header.top p { display: none; } header.top { background: none; color: #000; padding: 0; }
  header.top h1 .code { color: #000; } .e { break-inside: avoid; padding: 4px 0; } .e .ref a::after { content: " (" attr(href) ")"; font-size: 10px; } }

header.top nav.links { margin-top: 10px; font-size: 14px; }
header.top nav.links a { color: #35C6E6; margin-right: 14px; }
.crumbs { font-size: 13px; color: #b9c4d8; margin: 0 0 6px; }
.crumbs a { color: #35C6E6; }
main.term { padding-top: 22px; }
.def { font-size: 19px; line-height: 1.55; margin: 0 0 14px; }
.al { color: var(--muted); font-size: 15px; margin: 0 0 14px; }
.box { border: 1px solid var(--line); border-radius: 10px; padding: 12px 14px; margin: 18px 0; background: var(--card); }
.box h2 { font: 800 16px Montserrat, Arial, sans-serif; margin: 0 0 8px; }
.box ul { margin: 0; padding-left: 0; list-style: none; }
.box li { margin: 0 0 10px; }
.box li:last-child { margin-bottom: 0; }
.box li a.t { font-weight: 700; }
.box li p { margin: 2px 0 0; font-size: 14px; color: var(--muted); }
.chips a { display: inline-block; font: 700 12px "Space Mono", Consolas, monospace; text-decoration: none; color: var(--cyan); border: 1px solid var(--line); border-radius: 999px; padding: 2px 9px; margin: 2px 4px 2px 0; }
.retired { font: 700 11px "Space Mono", Consolas, monospace; color: #b45309; border: 1px solid #b45309; border-radius: 999px; padding: 0 6px; margin-left: 8px; vertical-align: 4px; }
.ref a { font-weight: 700; }

main > .e { content-visibility: auto; contain-intrinsic-size: auto 120px; }
.e .books { margin-top: 5px; display: flex; flex-wrap: wrap; gap: 4px 6px; align-items: center; font-size: 12px; }
.e .books a { font: 700 11px "Space Mono", Consolas, monospace; text-decoration: none; color: var(--cyan); border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; }
.e .retired { font: 700 11px "Space Mono", Consolas, monospace; color: #b45309; border: 1px solid #b45309; border-radius: 999px; padding: 0 6px; margin-left: 6px; vertical-align: 2px; }
.filters { display: flex; gap: 8px; margin-top: 8px; align-items: center; flex-wrap: wrap; font-size: 13px; color: var(--muted); }
#book { font: inherit; padding: 4px 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--card); color: var(--ink); }
header.top nav.links { margin-top: 10px; font-size: 14px; }
.bookbanner { margin-top: 8px; font-size: 14px; background: var(--hl); border-radius: 6px; padding: 6px 10px; }
.e .pending { color: var(--muted); font-style: italic; }
header.top nav.links a { color: #35C6E6; margin-right: 14px; }