:root {
--paper: #f5f7fa;
--surface: #ffffff;
--ink: #16233a;
--ink-2: #4a5568;
--line: #d9e0e8;
--teal: #0b7a7e;
--teal-ink: #075c5f;
--marker: #f4c443;
--marker-soft: #fdf1cc;
--serif: Charter, "Bitstream Charter", "Sitka Text", Cambria, Georgia, serif;
--sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
--measure: 40rem;
color-scheme: light;
}
@media (prefers-color-scheme: dark) {
:root:not([data-theme="light"]) {
--paper: #0f1622; --surface: #172131; --ink: #e8edf4; --ink-2: #a9b4c4; --line: #2a3648;
--teal: #4cc0c3; --teal-ink: #7fd6d8; --marker: #f4c443; --marker-soft: #3a3320; color-scheme: dark;
}
}
:root[data-theme="dark"] {
--paper: #0f1622; --surface: #172131; --ink: #e8edf4; --ink-2: #a9b4c4; --line: #2a3648;
--teal: #4cc0c3; --teal-ink: #7fd6d8; --marker: #f4c443; --marker-soft: #3a3320; color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 1.0625rem/1.65 var(--sans); }
a { color: var(--teal-ink); text-underline-offset: .18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--marker); outline-offset: 2px; border-radius: 2px; }
img { max-width: 100%; height: auto; }
.wrap { width: 100%; max-width: 72rem; margin: 0 auto; padding: 0 16px; }
@media (min-width: 700px) { .wrap { padding: 0 32px; } }
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--paper); padding: 8px 12px; z-index: 10; }
.skip-link:focus { left: 8px; }
.mark { width: 26px; height: 26px; flex: none; }
.mark .m1 { fill: var(--ink); } .mark .m2 { fill: var(--marker); } .mark .m3 { fill: var(--teal); }
.site-head { border-bottom: 1px solid var(--line); background: var(--surface); }
.head-row { display: flex; align-items: center; gap: 12px; min-height: 64px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--ink); text-decoration: none; font: 700 1.3rem/1 var(--serif); letter-spacing: -.01em; }
.site-nav { margin-left: auto; }
.site-nav ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; flex-wrap: wrap; }
.site-nav a { display: block; padding: 6px 10px; border-radius: 6px; color: var(--ink-2); text-decoration: none; font-size: .95rem; }
.site-nav a:hover { color: var(--ink); background: var(--paper); }
.site-nav a[aria-current] { color: var(--ink); box-shadow: inset 0 -3px 0 var(--marker); border-radius: 0; }
.nav-toggle, .theme-toggle { font: inherit; color: var(--ink); background: none; border: 1px solid var(--line); border-radius: 6px; cursor: pointer; }
.nav-toggle { display: none; padding: 6px 12px; margin-left: auto; font-size: .95rem; }
.theme-toggle { width: 36px; height: 36px; display: grid; place-items: center; padding: 0; }
.theme-toggle svg { width: 18px; height: 18px; fill: currentColor; }
@media (max-width: 899px) {
.js .nav-toggle { display: block; }
.js .site-nav { display: none; order: 3; width: 100%; margin: 0 0 12px; }
.js .site-nav.open { display: block; }
.site-nav ul { flex-direction: column; }
.site-nav a[aria-current] { box-shadow: inset 3px 0 0 var(--marker); }
}
.brief { display: grid; gap: 0; margin: 28px 0 8px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.brief-row { display: grid; grid-template-columns: 9.5rem 1fr; gap: 16px; padding: 16px 20px 16px 24px; position: relative; }
.brief-row + .brief-row { border-top: 1px solid var(--line); }
.brief-row::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 6px; }
.b1::before { background: var(--ink); } .b2::before { background: var(--marker); } .b3::before { background: var(--teal); }
.brief-k { font: 700 .9rem/1.5 var(--sans); color: var(--ink); padding-top: 2px; }
.brief p { margin: 0; font: 1.05rem/1.55 var(--serif); }
@media (max-width: 600px) { .brief-row { grid-template-columns: 1fr; gap: 2px; padding: 14px 16px 14px 20px; } }
.lead { padding-top: 48px; padding-bottom: 40px; max-width: 52rem; margin-left: 0; }
@media (min-width: 1100px) { .lead { margin-left: max(0px, calc((100vw - 72rem) / 2)); } }
.lead-kicker { margin: 0 0 10px; font-weight: 600; color: var(--teal-ink); font-size: .95rem; }
.lead-title { font: 700 clamp(2rem, 5vw, 3.25rem)/1.1 var(--serif); letter-spacing: -.02em; margin: 0 0 14px; text-wrap: balance; }
.lead-title a { color: inherit; text-decoration: none; }
.lead-title a:hover { text-decoration: underline; text-decoration-color: var(--marker); text-decoration-thickness: 4px; }
.lead-more { margin: 22px 0 0; }
.btn { display: inline-block; background: var(--ink); color: var(--paper); text-decoration: none; padding: 11px 18px; border-radius: 8px; font-weight: 600; }
.btn:hover { background: var(--teal-ink); }
.meta { display: flex; flex-wrap: wrap; gap: 4px 16px; margin: 0; color: var(--ink-2); font-size: .92rem; }
.meta .cat { font-weight: 600; text-decoration: none; }
.list-sec { padding-top: 36px; padding-bottom: 48px; }
.sec-title { font: 700 1.35rem/1.3 var(--serif); margin: 0 0 4px; padding-bottom: 12px; border-bottom: 2px solid var(--ink); }
.list { display: grid; grid-template-columns: 1fr; }
@media (min-width: 760px) { .list { grid-template-columns: 1fr 1fr; column-gap: 40px; } }
@media (min-width: 1100px) { .list { grid-template-columns: 1fr 1fr 1fr; } }
.item { padding: 20px 0; border-bottom: 1px solid var(--line); }
.item-meta { margin: 0 0 6px; font-size: .85rem; color: var(--ink-2); display: flex; gap: 10px; }
.item-meta a { font-weight: 600; text-decoration: none; }
.item h2, .item h3 { font: 700 1.2rem/1.3 var(--serif); margin: 0 0 6px; }
.item h2 a, .item h3 a { color: var(--ink); text-decoration: none; }
.item h2 a:hover, .item h3 a:hover { text-decoration: underline; }
.item p:last-child { margin: 0; color: var(--ink-2); font-size: .97rem; }
.pager { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 24px; color: var(--ink-2); font-size: .95rem; }
.empty { padding: 32px 0; color: var(--ink-2); }
.topics { padding-bottom: 56px; }
.topic-grid { list-style: none; padding: 0; margin: 16px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(12rem, 1fr)); gap: 10px; }
.topic-grid a { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; padding: 14px 16px; background: var(--surface); border: 1px solid var(--line); border-radius: 8px; color: var(--ink); text-decoration: none; }
.topic-grid a:hover { border-color: var(--teal); }
.topic-grid span { color: var(--ink-2); font-size: .85rem; white-space: nowrap; }
.topic-head { padding-bottom: 8px; }
.topic-head h1 { font: 700 clamp(1.9rem, 4vw, 2.6rem)/1.15 var(--serif); margin: 0 0 8px; }
.topic-head p { margin: 0 0 20px; color: var(--ink-2); max-width: 40rem; }
.month { font: 700 1.1rem/1.3 var(--serif); margin: 28px 0 8px; }
.archive { list-style: none; padding: 0; margin: 0; }
.archive li { display: grid; grid-template-columns: 4.5rem 1fr auto; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.archive time, .archive span { color: var(--ink-2); font-size: .88rem; }
@media (max-width: 600px) { .archive li { grid-template-columns: 4rem 1fr; } .archive span { display: none; } }
.post-head { max-width: calc(var(--measure) + 64px); padding-top: 32px; }
.crumbs { font-size: .88rem; color: var(--ink-2); margin-bottom: 18px; }
.crumbs a { color: var(--ink-2); }
.post-head h1 { font: 700 clamp(2rem, 5vw, 2.9rem)/1.12 var(--serif); letter-spacing: -.015em; margin: 0 0 14px; text-wrap: balance; }
.dek { font: 1.2rem/1.5 var(--serif); color: var(--ink-2); margin: 0 0 16px; }
.updated { font-size: .9rem; margin: 8px 0 0; color: var(--ink-2); }
.prose { max-width: calc(var(--measure) + 64px); font: 1.15rem/1.75 var(--serif); padding-top: 12px; }
.prose h2 { font: 700 1.55rem/1.25 var(--serif); margin: 2.2em 0 .5em; scroll-margin-top: 16px; }
.prose h2::before { content: ""; display: block; width: 36px; height: 5px; border-radius: 2px; background: var(--line); margin-bottom: 14px; }
.prose h2#what-happened::before { background: var(--ink); }
.prose h2#why-it-matters::before { background: var(--marker); }
.prose h2#what-s-next::before { background: var(--teal); }
.prose h3 { font: 700 1.2rem/1.3 var(--sans); margin: 1.6em 0 .4em; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.1em; }
.prose li { margin-bottom: .35em; }
.prose blockquote { margin: 1.4em 0; padding: 4px 0 4px 18px; border-left: 4px solid var(--marker); color: var(--ink-2); }
.prose mark { background: var(--marker-soft); color: inherit; padding: 0 .15em; }
.table-wrap { overflow-x: auto; margin: 0 0 1.2em; }
.prose table { border-collapse: collapse; font: .95rem/1.5 var(--sans); min-width: 100%; }
.prose th, .prose td { border-bottom: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.prose.static { padding-top: 40px; padding-bottom: 56px; }
.prose.static h1 { font: 700 clamp(1.9rem, 4vw, 2.5rem)/1.15 var(--serif); margin: 0 0 20px; }
.prose.static h2::before { display: none; }
.post-foot { max-width: calc(var(--measure) + 64px); padding-bottom: 24px; }
.sources { margin-top: 40px; padding: 20px 24px; background: var(--surface); border: 1px solid var(--line); border-radius: 10px; }
.sources h2 { font: 700 1.1rem/1.3 var(--sans); margin: 0 0 10px; }
.sources ol { margin: 0; padding-left: 1.4em; }
.sources li { margin: 6px 0; }
.sources li span { display: block; color: var(--ink-2); font-size: .88rem; }
.ed-note { font-size: .93rem; color: var(--ink-2); margin: 20px 0; padding-left: 14px; border-left: 3px solid var(--teal); }
.ed-note strong { color: var(--ink); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 16px; }
.tags span { font-size: .82rem; padding: 3px 10px; border: 1px solid var(--line); border-radius: 99px; color: var(--ink-2); }
.more { border-top: 1px solid var(--line); margin-top: 24px; }
.ad-slot { margin: 28px 0; min-height: 100px; }
.ad-slot:empty { display: none; }
.site-foot { background: var(--surface); border-top: 1px solid var(--line); padding-top: 40px; color: var(--ink-2); font-size: .95rem; }
.foot-grid { display: grid; gap: 28px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; } }
.foot-grid p { max-width: 26rem; }
.foot-grid h2 { font: 700 .95rem/1.4 var(--sans); color: var(--ink); margin: 0 0 8px; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin: 4px 0; }
.foot-grid a:not(.brand) { color: var(--ink-2); }
.foot-base { border-top: 1px solid var(--line); margin-top: 28px; padding-top: 16px; padding-bottom: 28px; font-size: .85rem; }
@media (prefers-reduced-motion: reduce) { * { transition: none !important; animation: none !important; scroll-behavior: auto !important; } }
@media print { .site-head, .site-foot, .ad-slot, .more { display: none; } body { background: #fff; } }