/* HProxy blog — the Blue design system, baked static (zero runtime theming,
   zero JS). Palette + typography match the live blog's ArticleBody exactly so
   the migrated pages look identical to today. Self-hosted DM Sans, one file. */

@font-face {
  font-family: "DM Sans";
  src: url("/blog/_assets/_fonts/DMSans-Variable.woff2") format("woff2");
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

:root {
  --accent: #0158ff;
  --accent-deep: #013599;
  --accent-light: #3d7bff;
  --ink: #0b1220;
  --ink-mute: #41474f;
  --ink-faint: #8a909c;
  --border: #e5e5e5;
  --tint: #f4f7ff;
  --code-bg: #0b1220;
  --surface: #ffffff;
  --sans: "DM Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --wrap: 76rem;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 450;
  font-size: 16px;
  line-height: 1.6;
  overflow-x: clip;
}
img { max-width: 100%; height: auto; }
a { color: inherit; }
h1, h2, h3 { letter-spacing: -0.02em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 1.25rem; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--accent); color: #fff; padding: 0.6rem 1rem; border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }

::selection { background: var(--accent); color: #fff; }

/* Shared brand gradient (exact recipe from the site's globals.css) */
.digi-gradient {
  background:
    radial-gradient(120% 140% at 85% 110%, #012368 0%, transparent 55%),
    radial-gradient(120% 120% at 0% 0%, var(--accent-light) 0%, transparent 55%),
    var(--accent);
}

/* ── nav ─────────────────────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 40;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-row { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: baseline; gap: 0; text-decoration: none; font-weight: 800; font-size: 22px; letter-spacing: -0.03em; color: var(--ink); }
.hmark { height: 0.78em; width: auto; margin-right: 0.06em; transform: translateY(0.04em); }
.brand-word { background: linear-gradient(135deg, var(--accent-light), var(--accent) 45%, var(--accent-deep)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand-dot { color: var(--accent); }
.brand-dot-light { color: rgba(255,255,255,0.7); }
.nav-links { display: flex; align-items: center; gap: 1.4rem; }
.nav-links a { text-decoration: none; color: var(--ink-mute); font-size: 14.5px; font-weight: 600; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  background: var(--accent); color: #fff !important; padding: 0.5rem 1rem; border-radius: 12px;
}
.nav-cta:hover { background: var(--accent-deep); }

/* ── index / category ────────────────────────────────────────────────────── */
.index-wrap { padding-top: 2.5rem; padding-bottom: 4rem; }
.index-hd h1 { font-size: clamp(30px, 5vw, 44px); font-weight: 800; line-height: 1.08; margin: 0 0 0.5rem; }
.index-intro { color: var(--ink-mute); font-size: 17px; max-width: 46rem; margin: 0; }
.cat-rail { display: flex; flex-wrap: wrap; gap: 0.55rem; margin: 1.6rem 0 2rem; border-bottom: 1px solid var(--border); padding-bottom: 1.6rem; }
.cat-pill {
  text-decoration: none; font-size: 13px; font-weight: 700; padding: 0.5rem 0.95rem; border-radius: 10px;
  border: 1px solid var(--border); color: var(--ink-mute); background: var(--surface);
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.cat-pill:hover { border-color: var(--accent); color: var(--accent); }
.cat-pill.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ── card grid ───────────────────────────────────────────────────────────── */
.card-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
.card {
  display: flex; flex-direction: column; text-decoration: none; color: inherit;
  border: 1px solid var(--border); border-radius: 16px; overflow: hidden; background: #fff;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(1, 88, 255, 0.08); }
.card-cover { width: 100%; aspect-ratio: 16 / 9; object-fit: cover; border-bottom: 1px solid var(--border); }
/* colourful per-post cover (hero-less) — ported from the frontend design */
.cover-art { position: relative; display: flex; flex-direction: column; justify-content: space-between; padding: 1.05rem; color: #fff; overflow: hidden; }
.cover-dots { position: absolute; inset: 0; pointer-events: none;
  background-image: radial-gradient(rgba(255,255,255,0.14) 1px, transparent 1.6px); background-size: 18px 18px;
  -webkit-mask-image: radial-gradient(120% 100% at 12% 0%, #000 20%, transparent 74%);
  mask-image: radial-gradient(120% 100% at 12% 0%, #000 20%, transparent 74%); }
.cover-scrim { position: absolute; inset: 0; pointer-events: none; background: linear-gradient(to top, rgba(4,9,24,0.5), transparent 52%); }
.cover-glow { position: absolute; top: -0.6rem; right: -0.6rem; width: 7.5rem; height: 7.5rem; display: grid; place-items: center; pointer-events: none; }
.cover-glow::before { content: ""; position: absolute; inset: 0; opacity: 0.55; background: radial-gradient(48% 48% at 55% 45%, var(--glow), transparent 70%); }
.cover-glow svg { position: relative; width: 3.4rem; height: 3.4rem; color: rgba(255,255,255,0.95); filter: drop-shadow(0 10px 26px rgba(0,0,0,0.4)); }
.cover-pill { position: relative; z-index: 1; align-self: flex-start; background: rgba(0,0,0,0.35); border-radius: 999px; padding: 0.24rem 0.7rem; font-size: 10.5px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: #fff; }
.cover-title { position: relative; z-index: 1; margin: 0; max-width: 84%; font-size: 18px; font-weight: 800; line-height: 1.15; letter-spacing: -0.02em; color: #fff; }
.card-body { padding: 1.1rem; display: flex; flex-direction: column; gap: 0.5rem; }
.card-title { font-size: 18px; font-weight: 800; line-height: 1.25; margin: 0; }
.card:hover .card-title { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.card-desc { font-size: 14px; color: var(--ink-mute); margin: 0; line-height: 1.55; }
.card-meta { font-size: 12.5px; color: var(--ink-faint); }

/* ── article ─────────────────────────────────────────────────────────────── */
.article-wrap { padding-top: 2rem; padding-bottom: 4rem; }
.crumbs { font-size: 13px; color: var(--ink-faint); }
.crumbs a { color: var(--ink-faint); text-decoration: none; }
.crumbs a:hover { text-decoration: underline; }
.crumbs .sep { margin: 0 0.5rem; }
/* colourful post hero band — matches the card covers (per-post hue + topic icon) */
.article-band { position: relative; overflow: hidden; border-radius: 16px; margin: 1.25rem 0 0; padding: 2rem 1.75rem; color: #fff; }
.band-inner { position: relative; z-index: 1; max-width: 44rem; }
/* The band's text sits at the TOP-left. The shared .cover-scrim darkens the
   bottom (right for a card, whose title is low), which leaves a light-hued
   band's title low-contrast. Re-anchor the scrim to the top-left so the title,
   dek and meta always have a dark backing on ANY palette hue. */
.article-band .cover-scrim { background: linear-gradient(135deg, rgba(2,6,20,0.62) 0%, rgba(2,6,20,0.24) 42%, transparent 72%); }
.article-band .cover-glow { top: -1rem; right: -1rem; width: 10rem; height: 10rem; }
.article-band .cover-glow svg { width: 4.5rem; height: 4.5rem; }
.band-title { font-size: clamp(28px, 4.5vw, 44px); font-weight: 800; line-height: 1.08; letter-spacing: -0.02em; margin: 0.75rem 0 0; }
.band-dek { font-size: clamp(15.5px, 2vw, 18px); color: rgba(255,255,255,0.85); line-height: 1.5; margin: 0.9rem 0 0; }
.band-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem 0.55rem; font-size: 13px; color: rgba(255,255,255,0.78); margin: 1.1rem 0 0; }
.band-meta .sep { color: rgba(255,255,255,0.4); }
.article-hero { width: 100%; max-width: 56rem; border-radius: 16px; border: 1px solid var(--border); margin: 1.5rem 0 0; }

.article-grid { display: grid; grid-template-columns: minmax(0, 1fr) 15rem; gap: 3rem; margin-top: 1rem; }

/* ── prose (rendered markdown) ───────────────────────────────────────────── */
.prose { min-width: 0; max-width: 48rem; }
.prose > p, .prose li { font-size: 16.5px; line-height: 1.75; color: var(--ink-mute); }
.prose > p { margin: 1rem 0; }
.prose h2 { font-size: clamp(24px, 3.2vw, 30px); font-weight: 800; margin: 3rem 0 1rem; color: var(--ink); scroll-margin-top: 6rem; }
.prose h3 { font-size: clamp(19px, 2.4vw, 22px); font-weight: 700; margin: 2.25rem 0 0.75rem; color: var(--ink); scroll-margin-top: 6rem; }
.prose h2 a, .prose h3 a { color: inherit; text-decoration: none; }
.prose strong { color: var(--ink); font-weight: 700; }
/* Real prose links only. Buttons rendered inside the article body (the mid CTA)
   are excluded so this rule's higher specificity can't override their fill. */
.prose a:not(.midcta-btn) { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; text-decoration-thickness: 1px; }
.prose ul, .prose ol { margin: 1rem 0; padding-left: 1.5rem; }
.prose li { margin: 0.4rem 0; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li::marker { color: var(--accent); }
.prose blockquote {
  margin: 1.5rem 0; padding: 0.25rem 1.25rem; background: var(--tint);
  border-left: 4px solid var(--accent); border-radius: 12px; color: var(--ink-mute);
}
.prose blockquote p { color: var(--ink-mute); }
.prose hr { border: 0; height: 1px; background: var(--border); margin: 2.5rem 0; }
.prose img { border-radius: 12px; border: 1px solid var(--border); margin: 1.75rem 0; display: block; }
.prose code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 14px;
  background: var(--tint); border: 1px solid var(--border); border-radius: 5px; padding: 0.1rem 0.35rem; color: var(--ink);
}
.prose pre {
  margin: 1.5rem 0; padding: 1rem 1.1rem; background: var(--code-bg); color: #e2e8f0;
  border-radius: 12px; overflow-x: auto; font-size: 13.5px; line-height: 1.6;
}
.prose pre code { background: none; border: 0; padding: 0; color: inherit; font-size: 13.5px; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.5rem 0; font-size: 14.5px; display: block; overflow-x: auto; }
.prose thead { background: var(--tint); text-transform: uppercase; font-size: 12px; letter-spacing: 0.05em; color: var(--ink-mute); }
.prose th { text-align: left; padding: 0.75rem 1rem; font-weight: 700; border-bottom: 1px solid var(--border); white-space: nowrap; }
.prose td { padding: 0.75rem 1rem; border-top: 1px solid var(--border); color: var(--ink-mute); vertical-align: top; }

/* ── table of contents ───────────────────────────────────────────────────── */
.toc-side { }
.toc { position: sticky; top: 6rem; }
.toc-h { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); margin: 0 0 0.75rem; }
.toc { border-left: 1px solid var(--border); padding-left: 1rem; }
.toc-l { display: block; font-size: 13px; line-height: 1.45; color: var(--ink-mute); text-decoration: none; margin: 0.5rem 0; }
.toc-l:hover { color: var(--accent); }
.toc-l3 { padding-left: 0.75rem; color: var(--ink-faint); }

/* ── FAQ ─────────────────────────────────────────────────────────────────── */
.faq { margin-top: 3rem; }
.faq > h2 { font-size: clamp(24px, 3.2vw, 30px); font-weight: 800; margin: 0 0 1.25rem; }
.faq-list { border: 1px solid var(--border); border-radius: 16px; overflow: hidden; }
.faq-item + .faq-item { border-top: 1px solid var(--border); }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; cursor: pointer;
  list-style: none; padding: 1rem 1.25rem; font-weight: 700; font-size: 15.5px; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-plus { color: var(--accent); font-size: 20px; line-height: 1; transition: transform 0.15s ease; }
.faq-item[open] .faq-plus { transform: rotate(45deg); }
.faq-a { padding: 0 1.25rem 1rem; font-size: 15px; line-height: 1.7; color: var(--ink-mute); }

/* ── mid-article CTA (slim, contextual) ─────────────────────────────────── */
.midcta {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap;
  margin: 2.25rem 0; padding: 0.9rem 1.1rem; background: var(--tint);
  border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 12px;
}
.midcta-line { font-weight: 600; font-size: 15px; color: var(--ink); }
.midcta-btn {
  flex: none; text-decoration: none; font-weight: 700; font-size: 14px; color: #fff;
  background: var(--accent); padding: 0.6rem 1.15rem; border-radius: 12px; white-space: nowrap;
  transition: background 0.15s ease;
}
.midcta-btn:hover { background: var(--accent-deep); }

/* ── author card ─────────────────────────────────────────────────────────── */
.authorcard { display: flex; align-items: center; gap: 1rem; margin-top: 3rem; padding: 1rem 1.25rem; background: var(--tint); border: 1px solid var(--border); border-radius: 16px; }
.avatar { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; flex: none; border-radius: 999px; background: var(--accent); color: #fff; font-weight: 800; font-size: 16px; }
.a-name { font-weight: 700; font-size: 15px; color: var(--ink); }
.a-role { font-size: 13px; color: var(--ink-mute); }

/* ── related ─────────────────────────────────────────────────────────────── */
.related { margin-top: 3.5rem; }
.sec-h { font-size: clamp(22px, 3vw, 26px); font-weight: 800; margin: 0 0 1.25rem; }

/* ── CTAs (hero + post) ──────────────────────────────────────────────────── */
.cta { position: relative; overflow: hidden; border-radius: 18px; color: #fff; }
.cta-hero { margin: 2rem 0 0; padding: 1.75rem; }
.cta-post { margin-top: 3.5rem; padding: 2.5rem 2rem; }
.cta-brand { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.cta-word { font-weight: 800; font-size: 20px; letter-spacing: -0.03em; }
.cta-kicker { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.14em; color: rgba(255,255,255,0.72); }
.cta-title { font-size: clamp(22px, 3vw, 28px); font-weight: 800; margin: 0 0 0.6rem; max-width: 40rem; }
.cta-title-lg { font-size: clamp(24px, 3.6vw, 32px); font-weight: 800; margin: 0 0 0.75rem; max-width: 40rem; }
.cta-sub { font-size: 15px; line-height: 1.6; color: rgba(255,255,255,0.85); margin: 0 0 1.4rem; max-width: 42rem; }
.cta-btns { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.btn { display: inline-flex; align-items: center; gap: 0.4rem; text-decoration: none; font-weight: 700; font-size: 15px; padding: 0.75rem 1.25rem; border-radius: 12px; transition: transform 0.15s ease; }
.btn:hover { transform: translateY(-1px); }
.btn-white { background: #fff; color: var(--accent); }
.btn-ghost { color: #fff; border: 1px solid rgba(255,255,255,0.5); }
.btn-ghost:hover { background: rgba(255,255,255,0.1); }
.arr { font-size: 1.1em; }
.cta-trust { margin: 1.4rem 0 0; font-size: 12.5px; color: rgba(255,255,255,0.72); }

/* ── footer ──────────────────────────────────────────────────────────────── */
.ftr { border-top: 1px solid var(--border); margin-top: 4rem; }
.ftr-top { display: grid; grid-template-columns: 2fr 1fr; gap: 2rem; padding: 2.5rem 1.25rem 1.5rem; }
.ftr-word { font-weight: 800; font-size: 20px; letter-spacing: -0.03em; color: var(--ink); }
.ftr-brand p { color: var(--ink-mute); font-size: 14px; max-width: 30rem; margin: 0.6rem 0 0; }
.ftr-cats { display: flex; flex-direction: column; gap: 0.4rem; }
.ftr-h { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink-faint); margin: 0 0 0.35rem; }
.ftr-cats a { color: var(--ink-mute); text-decoration: none; font-size: 14px; }
.ftr-cats a:hover { color: var(--accent); }
.ftr-legal { display: flex; align-items: center; justify-content: space-between; padding: 1.25rem; border-top: 1px solid var(--border); font-size: 13px; color: var(--ink-faint); }
.ftr-legal a { color: var(--ink-faint); text-decoration: none; }
.ftr-legal a:hover { color: var(--accent); }

/* ── charts (server-rendered, zero-JS data-viz) ──────────────────────────── */
.chart { margin: 2rem 0; padding: 1.25rem 1.35rem; border: 1px solid var(--border); border-radius: 16px; background: #fff; }
.chart-title { font-size: 14px; font-weight: 800; color: var(--ink); letter-spacing: -0.01em; margin: 0 0 1.1rem; }
.chart-source { font-size: 12px; color: var(--ink-faint); margin: 1.05rem 0 0; }

/* horizontal bars */
.chart-rows { display: flex; flex-direction: column; gap: 0.65rem; }
.chart-row { display: grid; grid-template-columns: 10.5rem 1fr auto; align-items: center; gap: 0.85rem; }
.chart-label { display: flex; flex-direction: column; line-height: 1.2; min-width: 0; }
.chart-label-main { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.chart-label-note { font-size: 11px; color: var(--ink-faint); margin-top: 1px; }
.chart-track { position: relative; height: 12px; background: var(--tint); border-radius: 999px; overflow: hidden; }
.chart-fill { height: 100%; border-radius: 999px; min-width: 3px; }
.chart-val { font-size: 13px; font-weight: 700; color: var(--ink); font-variant-numeric: tabular-nums; white-space: nowrap; }

/* 100% stacked bar */
.chart-stackbar { display: flex; width: 100%; height: 26px; border-radius: 8px; overflow: hidden; border: 1px solid var(--border); }
.chart-seg { height: 100%; }
.chart-legend { display: flex; flex-wrap: wrap; gap: 0.5rem 1.1rem; margin-top: 0.95rem; }
.chart-key { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 12.5px; color: var(--ink-mute); }
.chart-key b { color: var(--ink); font-weight: 700; }
.chart-dot { width: 10px; height: 10px; border-radius: 3px; flex: none; display: inline-block; }

/* donut */
.chart-donut-wrap { display: flex; align-items: center; gap: 1.75rem; flex-wrap: wrap; }
.chart-donut-svg { width: 138px; height: 138px; flex: none; }
.chart-donut-wrap .chart-legend { flex-direction: column; gap: 0.5rem; margin: 0; }

/* uptime "barcode" strip */
.chart-uptime .chart-bars { display: flex; align-items: stretch; gap: 2px; height: 48px; }
.chart-tick { flex: 1 1 0; height: 100%; border-radius: 1px; min-width: 2px; }
.chart-tick.is-up { background: var(--accent); }
.chart-tick.is-down { background: #e2e8f0; }
.chart-uptime-legend { display: flex; gap: 1.2rem; margin-top: 0.8rem; }
.chart-uptime-legend span { display: inline-flex; align-items: center; gap: 0.45rem; font-size: 12.5px; color: var(--ink-mute); }
.chart-dot.is-up { background: var(--accent); }
.chart-dot.is-down { background: #e2e8f0; }
.chart-error { border: 1px solid #f0b4b4; }

/* flow diagram (labelled boxes + arrows, scrolls on narrow screens) */
.chart-flow-scroll { overflow-x: auto; padding-bottom: 4px; }
.chart-flow-svg { display: block; }
.chart-flow-svg text { font-family: var(--sans); }

/* ── nav search (zero-JS GET form) ───────────────────────────────────────── */
.navsearch {
  display: flex; align-items: center; gap: 0.5rem; flex: 1 1 auto; max-width: 22rem; margin: 0 1.25rem;
  padding: 0.42rem 0.8rem; background: var(--tint); border: 1px solid var(--border); border-radius: 12px; color: var(--ink-faint);
  transition: border-color 0.15s ease, color 0.15s ease;
}
.navsearch:focus-within { border-color: var(--accent); color: var(--accent); }
.navsearch-ico { width: 16px; height: 16px; flex: none; }
.navsearch input { flex: 1 1 auto; min-width: 0; border: 0; background: none; outline: none; font: inherit; font-size: 14px; color: var(--ink); }
.navsearch input::placeholder { color: var(--ink-faint); }

/* ── index meta + empty state ────────────────────────────────────────────── */
.index-meta { color: var(--ink-faint); font-size: 13px; font-weight: 600; margin: 0.5rem 0 0; }
.cat-pill-ghost { color: var(--accent); }
.tag-context { font-size: 13.5px; color: var(--ink-mute); margin: 0 0 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.empty { border: 1px dashed var(--border); border-radius: 16px; padding: 2.75rem 1.5rem; text-align: center; color: var(--ink-mute); font-size: 15.5px; }
.empty a { color: var(--accent); font-weight: 600; }

/* ── tags (chips on a post, cloud on /blog/tags) ─────────────────────────── */
.tag-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 1.75rem; }
.tag-chip {
  text-decoration: none; font-size: 12.5px; font-weight: 700; padding: 0.3rem 0.75rem; border-radius: 999px;
  background: var(--tint); border: 1px solid var(--border); color: var(--accent);
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.tag-chip:hover { background: var(--accent); border-color: var(--accent); color: #fff; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.6rem; margin: 0.25rem 0 1rem; }
.tag-cloud-item {
  display: inline-flex; align-items: center; gap: 0.5rem; text-decoration: none; font-size: 14px; font-weight: 700;
  padding: 0.5rem 0.9rem; border-radius: 12px; border: 1px solid var(--border); color: var(--ink); background: #fff;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.tag-cloud-item:hover { border-color: var(--accent); color: var(--accent); }
.tag-count { font-size: 11.5px; font-weight: 700; color: var(--ink-faint); background: var(--tint); border-radius: 999px; padding: 0.05rem 0.45rem; }
.tag-cloud-item:hover .tag-count { color: var(--accent); }

/* ── pagination (reuses the pill vocabulary) ─────────────────────────────── */
.pager-summary { text-align: center; font-size: 12.5px; color: var(--ink-faint); margin: 3rem 0 0.6rem; }
.pager { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 0.4rem; margin: 0.4rem 0 0; }
.pager-nums { display: flex; align-items: center; gap: 0.3rem; }
.pager-btn, .pager-num {
  text-decoration: none; font-size: 13.5px; font-weight: 700; padding: 0.5rem 0.85rem; border-radius: 10px;
  border: 1px solid var(--border); color: var(--ink-mute); background: #fff;
  transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}
.pager-btn:hover, .pager-num:hover { border-color: var(--accent); color: var(--accent); }
.pager-num.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }
.pager-btn.is-disabled { opacity: 0.4; pointer-events: none; }
.pager-gap { padding: 0.5rem 0.25rem; color: var(--ink-faint); }

/* ── responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .article-grid { grid-template-columns: 1fr; }
  .toc-side { display: none; }
  .card-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .card-grid { grid-template-columns: 1fr; }
  .ftr-top { grid-template-columns: 1fr; }
  .chart-row { grid-template-columns: 7rem 1fr auto; gap: 0.55rem; }
  .chart-label-main { font-size: 12.5px; }
  .chart { padding: 1rem 1rem; }
}