@font-face { font-family:'Figtree'; src:url('/static/fonts/Figtree-Regular.woff2') format('woff2'); font-weight:400; font-display:fallback; }
@font-face { font-family:'Figtree'; src:url('/static/fonts/Figtree-Medium.woff2') format('woff2'); font-weight:500; font-display:fallback; }
@font-face { font-family:'Figtree'; src:url('/static/fonts/Figtree-SemiBold.woff2') format('woff2'); font-weight:600; font-display:fallback; }

:root {
  --bg:         #0A0A0A;
  --bg-raised:  #131311;
  --border:     rgba(242,240,236,.12);
  --border-strong: rgba(242,240,236,.22);
  --ink:        #F2F0EC;
  --ink-muted:  rgba(242,240,236,.76);
  --ink-faint:  rgba(242,240,236,.48);
  --accent:     #6EA8FA;
  --serif:      Georgia, 'Times New Roman', serif;
  --sans:       'Figtree', -apple-system, 'Helvetica Neue', Arial, sans-serif;
  --nav-h:      80px;
  --ink-body:   rgba(242,240,236,.87);
  --mono:       ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;
  --good:       #7FD3A6;
  --bad:        #F09384;
  --chart-before: #3A5578;
  --chart-after:  #6EA8FA;
  --measure: 46rem;
}

* { box-sizing: border-box; }

html {
  background: var(--bg); -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink-body);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.68;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
h1, h2, h3 { margin: 0; font-weight: 400; color: var(--ink); }

.pub-wrap { max-width: 1120px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .pub-wrap { padding: 0 20px; } }

.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h); padding: 0 32px; border-bottom: 1px solid var(--border);
  background: rgba(10,10,10,.86); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.nav-brand { display: flex; align-items: center; }
.nav-logo { display: block; height: 34px; width: auto; }
.nav-links { display: flex; gap: 28px; font-size: 14.5px; color: var(--ink-muted); }
.nav-links a { text-decoration: none; }
.nav-links a:hover { color: var(--ink); }
.nav-links a[aria-current] { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 20px; }
.nav-signin { font-size: 14.5px; color: var(--ink-muted); text-decoration: none; }
.nav-signin:hover { color: var(--ink); }
@media (max-width: 860px) { .nav-links { display: none; } }
.nav-right .btn { white-space: nowrap; }
@media (max-width: 640px) { .nav { padding: 0 20px; } .nav-right { gap: 14px; } }
@media (max-width: 480px) {
  .nav-signin { display: none; }
  .nav-logo { height: 28px; }
  .nav-right .btn { padding: 10px 16px; font-size: 13.5px; }
}

.btn {
  display: inline-flex; align-items: center; gap: 8px; font-family: var(--sans);
  font-size: 14px; font-weight: 600; padding: 11px 22px; border-radius: 999px;
  text-decoration: none; line-height: 1; transition: opacity .15s ease;
}
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn-primary { background: var(--ink); color: #0A0A0A; border: 1px solid transparent; }
.btn-primary:hover { opacity: .88; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.pub-foot {
  border-top: 1px solid var(--border);
  margin-top: 88px; padding: 34px 32px 64px;
  font-size: 13px; color: var(--ink-faint);
}
.pub-foot-inner {
  max-width: 1120px; margin: 0 auto;
  display: flex; gap: 22px; flex-wrap: wrap; align-items: baseline;
}
.pub-foot a { color: var(--ink-muted); text-decoration: none; }
.pub-foot a:hover { color: var(--ink); }
.pub-foot-spacer { flex: 1; }
@media (max-width: 640px) { .pub-foot { padding: 34px 20px 64px; } }

.pub-masthead { padding: 76px 0 44px; }
.pub-masthead h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(34px, 4.6vw, 54px); line-height: 1.1;
  margin: 0;
}
.pub-masthead p { margin: 20px 0 0; color: var(--ink-muted); font-size: 17px; line-height: 1.65; }
.pub-list {
  list-style: none; margin: 0; padding: 0;
  display: grid; gap: 1px; background: var(--border);
  border: 1px solid var(--border); border-radius: 14px; overflow: hidden;
}
.pub-item { background: var(--bg); }
.pub-item a {
  display: block;
  padding: 32px 30px; text-decoration: none; color: inherit;
  transition: background .15s ease;
}
.pub-item a:hover { background: var(--bg-raised); }
.pub-item a:hover .pub-item-title { text-decoration: underline; text-underline-offset: 3px; }
.pub-item-title {
  font-family: var(--serif); font-size: 25px; line-height: 1.28;
  margin: 0 0 10px; font-weight: 400;
}
.pub-item-excerpt { margin: 0; color: var(--ink-muted); font-size: 15.5px; line-height: 1.65; max-width: 66ch; }

@media (max-width: 720px) {
  .pub-item a { padding: 26px 22px; }
}

.pub-article { max-width: 1120px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 640px) { .pub-article { padding: 0 20px; } }
.pub-article-head {
  display: grid; grid-template-columns: 1fr min(var(--measure), 100%) 1fr;
  padding: 64px 0 30px; border-bottom: 1px solid var(--border);
}
.pub-article-head > * { grid-column: 2; }
.pub-back {
  justify-self: start; display: inline-block; font-size: 14px; color: var(--ink-faint);
  text-decoration: none; margin-bottom: 26px;
}
.pub-back:hover { color: var(--ink); }
.pub-article-head h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(30px, 4.2vw, 46px); line-height: 1.13; margin: 0;
}
.pub-article-meta, .pub-article-dates { font-size: 13.5px; color: var(--ink-faint); margin: 20px 0 0; }
.pub-body {
  display: grid;
  grid-template-columns: 1fr min(var(--measure), 100%) 1fr;
  padding: 34px 0 0;
}
.pub-body > * { grid-column: 2; }
.pub-body p { margin: 0 0 19px; }
.pub-body h2 {
  font-family: var(--serif); font-size: 27px; line-height: 1.3;
  margin: 48px 0 14px;
}
.pub-body h3 { font-family: var(--sans); font-size: 17px; font-weight: 600; margin: 30px 0 7px; }
.pub-body a { color: var(--accent); text-underline-offset: 2px; }
.pub-body ul, .pub-body ol { margin: 0 0 19px; padding-left: 22px; }
.pub-body li { margin-bottom: 11px; }
.pub-body li::marker { color: var(--ink-faint); }
.pub-body strong { font-weight: 600; color: var(--ink); }
.pub-body em { color: var(--ink); }

.pub-body code {
  font-family: var(--mono); font-size: .86em;
  background: var(--bg-raised); border: 1px solid var(--border);
  border-radius: 3px; padding: 1px 5px;
}
.pub-body pre {
  background: var(--bg-raised); border: 1px solid var(--border); border-radius: 10px;
  padding: 16px 18px; overflow-x: auto; margin: 24px 0;
  font-family: var(--mono); font-size: 13.5px; line-height: 1.6; color: var(--ink-body);
}
.pub-body pre code { background: none; border: 0; padding: 0; font-size: inherit; }
.pub-body .cm   { color: var(--ink-faint); }
.pub-body .bad  { color: var(--bad); }
.pub-body .good { color: var(--good); }

.pub-chart {
  border: 1px solid var(--border); border-radius: 12px;
  background: var(--bg-raised); margin: 26px 0; padding: 20px 14px 12px;
}
.pub-chart svg { display: block; width: 100%; height: auto; }
.pub-chart figcaption { font-size: 12.5px; color: var(--ink-faint); text-align: center; margin-top: 8px; }
.pub-table-scroll {
  overflow-x: auto; border: 1px solid var(--border);
  border-radius: 12px; background: var(--bg-raised); margin: 26px 0;
}
.pub-body table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: 15px; }
.pub-body th {
  font-size: 12.5px; font-weight: 500; color: var(--ink-faint);
  text-align: left; padding: 13px 16px;
  border-bottom: 1px solid var(--border);
}
.pub-body th.n, .pub-body td.n { text-align: right; font-variant-numeric: tabular-nums; }
.pub-body td {
  padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: top;
  color: var(--ink-body);
}
.pub-body th:not(:last-child),
.pub-body td:not(:last-child) { border-right: 1px solid var(--border); }
.pub-body tbody tr:last-child td { border-bottom: 0; }
.pub-body tfoot td {
  font-weight: 600; color: var(--ink);
  background: rgba(242,240,236,.045); border-top: 1px solid var(--border); border-bottom: 0;
}
.pub-body td.mono { font-family: var(--mono); font-size: 13px; white-space: nowrap; }
.pub-body > .pub-wide {
  grid-column: 1 / -1; justify-self: center;
  width: min(980px, 100%); max-width: none;
}