:root {
  --sans: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  --hand: 'Instrument Serif', 'Be Vietnam Pro', cursive;
  --hand-style: italic;
  --accent: #040303;
  --highlight: #39C7D8;
  --detail: #39C7D8;
  --paper: #ffffff;
  --paper-2: #f2f2f2;
  --ink: #040303;
  --ink-2: #4f4f4f;
  --ink-3: #828181;
  --line: rgba(4, 3, 3, 0.14);
  --link: #040303;
  --link-hover: #040303;
  --band: #040303;
  --band-ink: #ffffff;
  --band-title: #39C7D8;
  --on-accent: #ffffff;
  --on-highlight: #040303;
  --cta-bg: #ebebeb;
  --rule: #39C7D8;
  --mark-bg: #040303;
  --measure: 720px;
}
.light-only { display: block; } .dark-only { display: none; }
@media (prefers-color-scheme: dark) {
  :root {
  --paper: #161515;
  --paper-2: #222121;
  --ink: #f5f5f5;
  --ink-2: #bdbdbd;
  --ink-3: #919090;
  --line: rgba(255, 255, 255, 0.16);
  --link: #39C7D8;
  --link-hover: #39C7D8;
  --band: #2c2b2b;
  --band-ink: #f5f5f5;
  --band-title: #39C7D8;
  --on-accent: #ffffff;
  --on-highlight: #040303;
  --cta-bg: #141313;
  --rule: #39C7D8;
  --mark-bg: #ffffff;
  }
  .light-only { display: none; } .dark-only { display: block; }
}
/* The preview in the editor forces a scheme on <html>; the published page never sets it and follows the system. */
html[data-scheme="dark"] {
  --paper: #161515;
  --paper-2: #222121;
  --ink: #f5f5f5;
  --ink-2: #bdbdbd;
  --ink-3: #919090;
  --line: rgba(255, 255, 255, 0.16);
  --link: #39C7D8;
  --link-hover: #39C7D8;
  --band: #2c2b2b;
  --band-ink: #f5f5f5;
  --band-title: #39C7D8;
  --on-accent: #ffffff;
  --on-highlight: #040303;
  --cta-bg: #141313;
  --rule: #39C7D8;
  --mark-bg: #ffffff;
}
html[data-scheme="dark"] .light-only { display: none; } html[data-scheme="dark"] .dark-only { display: block; }
html[data-scheme="light"] {
  --paper: #ffffff;
  --paper-2: #f2f2f2;
  --ink: #040303;
  --ink-2: #4f4f4f;
  --ink-3: #828181;
  --line: rgba(4, 3, 3, 0.14);
  --link: #040303;
  --link-hover: #040303;
  --band: #040303;
  --band-ink: #ffffff;
  --band-title: #39C7D8;
  --on-accent: #ffffff;
  --on-highlight: #040303;
  --cta-bg: #ebebeb;
  --rule: #39C7D8;
  --mark-bg: #040303;
}
html[data-scheme="light"] .light-only { display: block; } html[data-scheme="light"] .dark-only { display: none; }
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
}
a { color: var(--link); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--link-hover); }
img { max-width: 100%; height: auto; display: block; }
.wrap { width: min(100% - 32px, var(--measure)); margin: 0 auto; }
.wrap-wide { width: min(100% - 32px, 1040px); margin: 0 auto; }

.site-header {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 0; border-bottom: 1px solid var(--line);
}
.site-header .logo { display: flex; align-items: center; height: 44px; overflow: hidden; }
.site-header .logo img { height: 84px; width: auto; margin: -20px 0; }
.site-header nav { display: flex; gap: 20px; flex-wrap: wrap; font-size: 14px; }
.site-header nav a { color: var(--ink-2); text-decoration: none; }
.site-header nav a:hover, .site-header nav a[aria-current] { color: var(--ink); }
.button {
  display: inline-block; padding: 10px 18px; border-radius: 999px; font-weight: 600; font-size: 14px;
  background: var(--band); color: var(--band-ink); text-decoration: none; white-space: nowrap;
}
.button:hover { background: var(--accent); color: var(--on-accent); }
@media (max-width: 720px) { .site-header nav { display: none; } }

main { padding: 32px 0 64px; }
.crumbs { font-size: 13px; color: var(--ink-3); margin: 0 0 18px; }
.crumbs a { color: inherit; text-decoration: none; }
.crumbs a:hover { color: var(--ink); }
article h1 { font-size: clamp(30px, 4.6vw, 44px); line-height: 1.12; letter-spacing: -0.01em; margin: 0 0 14px; font-weight: 700; }
.meta { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 14px; color: var(--ink-2); margin: 0 0 24px; }
.meta .author-link { color: var(--ink); font-weight: 600; text-decoration: none; }
.meta .tag { color: var(--detail); font-weight: 600; }
.cover { border-radius: 14px; margin: 0 0 28px; border: 1px solid var(--line); }
.body figure { margin: 28px 0; }
.body img { border-radius: 10px; }
.lede { font-size: 20px; line-height: 1.55; color: var(--ink); border-left: 4px solid var(--rule); padding-left: 18px; margin: 0 0 28px; }
.lede p { margin: 0; }
.toc { background: var(--paper-2); border-radius: 12px; padding: 16px 20px; margin: 0 0 32px; font-size: 15px; }
.toc h2 { font-size: 13px; margin: 0 0 8px; color: var(--ink-3); font-weight: 600; }
.toc ol { margin: 0; padding-left: 18px; }
.toc li { margin: 4px 0; }
.toc li.level-3 { margin-left: 16px; font-size: 14px; }
.toc a { text-decoration: none; }
.body h2 { font-size: 26px; line-height: 1.25; margin: 44px 0 12px; font-weight: 700; }
.body h3 { font-size: 20px; line-height: 1.3; margin: 32px 0 10px; font-weight: 600; }
.body p, .body ul, .body ol { margin: 0 0 18px; }
.body li { margin: 6px 0; }
.body blockquote { margin: 24px 0; padding: 4px 0 4px 18px; border-left: 3px solid var(--rule); color: var(--ink-2); }
.body table { border-collapse: collapse; width: 100%; font-size: 15px; margin: 0 0 24px; }
.body th, .body td { border: 1px solid var(--line); padding: 8px 10px; text-align: left; vertical-align: top; }
.body th { background: var(--paper-2); }
.body code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 0.9em; background: var(--paper-2); padding: 1px 5px; border-radius: 4px; }
.body pre { background: var(--paper-2); padding: 14px 16px; border-radius: 10px; overflow: auto; font-size: 14px; }
.body pre code { background: none; padding: 0; }
.body hr { border: 0; border-top: 1px solid var(--line); margin: 36px 0; }

.takeaways { background: var(--band); color: var(--band-ink); border-radius: 14px; padding: 22px 24px; margin: 40px 0; }
.takeaways h2 { margin: 0 0 10px; font-family: var(--hand); font-style: var(--hand-style); font-size: 26px; font-weight: 700; color: var(--band-title); }
.takeaways ul { margin: 0; padding-left: 20px; }
.takeaways li { margin: 6px 0; }
.faq { margin: 40px 0; }
.faq h2, .sources h2, .related h2 { font-size: 24px; margin: 0 0 14px; }
.faq details { border-top: 1px solid var(--line); padding: 12px 0; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; color: var(--accent); font-weight: 700; }
.faq details[open] summary::after { content: "\2013"; }
.faq details p { margin: 10px 0 0; color: var(--ink-2); }
.sources { margin: 40px 0; font-size: 15px; color: var(--ink-2); }
.sources ol { padding-left: 20px; margin: 0; }
.sources li { margin: 6px 0; }
.author-card { display: flex; gap: 16px; align-items: flex-start; border: 1px solid var(--line); border-radius: 14px; padding: 18px 20px; margin: 40px 0; }
.author-card img { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; flex: none; }
.author-card .initials { width: 56px; height: 56px; border-radius: 50%; background: var(--paper-2); color: var(--ink); display: flex; align-items: center; justify-content: center; font-weight: 700; flex: none; }
.author-card .mark { width: 56px; height: 56px; border-radius: 50%; background: var(--mark-bg); display: flex; align-items: center; justify-content: center; flex: none; overflow: hidden; }
.author-card .mark img { width: 40px; height: 40px; object-fit: contain; }
.author-card strong { display: block; font-size: 16px; }
.author-card .role { font-size: 13px; color: var(--ink-3); }
.author-card p { margin: 6px 0 0; font-size: 15px; color: var(--ink-2); }
.cta-box { background: var(--cta-bg); color: var(--ink); border-radius: 16px; padding: 28px; margin: 44px 0; text-align: center; }
.cta-box h2 { margin: 0 0 8px; font-size: 24px; line-height: 1.2; }
.cta-box p { margin: 0 0 18px; color: var(--ink-2); }
.cta-box .button { background: var(--accent); color: var(--on-accent); }
.cta-box .button:hover { background: var(--band); color: var(--band-ink); }
.related ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.related li { border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; }
.related li a { font-weight: 600; text-decoration: none; }
.related li p { margin: 4px 0 0; font-size: 14px; color: var(--ink-2); }
.related .cluster-note { font-size: 13px; color: var(--ink-3); margin: 0 0 12px; }

.index h1 { font-size: clamp(30px, 4.6vw, 42px); margin: 0 0 6px; }
.index .intro { font-family: var(--hand); font-style: var(--hand-style); font-size: 24px; line-height: 1.3; color: var(--ink-2); margin: 0 0 32px; }
.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 18px; }
.post-list li { border-top: 1px solid var(--line); padding-top: 18px; }
.post-list .kicker { font-size: 13px; color: var(--detail); font-weight: 600; }
.post-list h2 { font-size: 22px; line-height: 1.25; margin: 4px 0 6px; }
.post-list h2 a { text-decoration: none; color: var(--ink); }
.post-list h2 a:hover { color: var(--link-hover); }
.post-list p { margin: 0; color: var(--ink-2); font-size: 15px; }
.post-list time { display: block; margin-top: 8px; font-size: 13px; color: var(--ink-3); }
.pagination { display: flex; justify-content: space-between; gap: 12px; margin: 36px 0 0; font-size: 14px; }
.empty { color: var(--ink-3); }

.site-footer { border-top: 1px solid var(--line); padding: 22px 0 32px; font-size: 13px; color: var(--ink-3); display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; }
.site-footer a { color: inherit; }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 8px; background: var(--highlight); color: var(--on-highlight); padding: 6px 10px; border-radius: 6px; z-index: 10; }
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }