/* ============================================================================
   ARUSI Insight Post — Design System + Single Post Layout
   Implements the "Insight Post.html" design from the ARUSI design handoff.
   ============================================================================ */

/* Fonts are loaded via wp_enqueue_style('arc-google-fonts') in functions.php —
   no @import here so WP Rocket's minifier can never strip it.              */

/* ---------- TOC sticky via JavaScript — .arc-toc-rail holds the grid column
   width while JS sets .arc-toc to position:fixed during scroll.
   (CSS position:sticky is blocked by Energo's overflow:hidden on .boxed_wrapper) */

/* ---------- Design tokens ------------------------------------------------- */
:root {
  --arusi-blue:    #132d85;
  --arusi-gold:    #d18232;
  --arusi-grey:    #636466;

  --neutral-50:  #f6f7f9;
  --neutral-100: #eceef2;
  --neutral-200: #d8dbe1;
  --neutral-300: #b9bdc6;
  --neutral-400: #8c9099;
  --neutral-500: #636466;
  --neutral-600: #4d4e50;
  --neutral-700: #3a3b3d;
  --neutral-800: #25262a;
  --neutral-900: #14151a;
  --neutral-ink: #0b0d12;

  --blue-50:  #eef1fa;
  --blue-100: #d7deef;
  --blue-200: #aab6dc;
  --blue-300: #7587c4;
  --blue-400: #3f55a8;
  --blue-500: #132d85;
  --blue-600: #0f256d;
  --blue-700: #0c1d56;

  --gold-50:  #fbf2e8;
  --gold-400: #d18232;

  --bg:            #ffffff;
  --surface-tint:  #f9faff;
  --fg-1: var(--neutral-ink);
  --fg-2: var(--neutral-700);
  --fg-3: var(--neutral-500);
  --fg-4: var(--neutral-400);
  --border-subtle: var(--neutral-100);
  --border:        var(--neutral-200);
  --border-strong: var(--neutral-300);
  --rule:          rgba(19, 45, 133, 0.12);

  --shadow-xs: 0 1px 1px rgba(11,13,18,0.04);
  --shadow-sm: 0 1px 2px rgba(11,13,18,0.06), 0 1px 1px rgba(11,13,18,0.04);
  --shadow-md: 0 4px 8px rgba(11,13,18,0.06), 0 2px 4px rgba(11,13,18,0.04);
  --shadow-lg: 0 12px 24px rgba(11,13,18,0.08), 0 4px 8px rgba(11,13,18,0.04);
  --shadow-xl: 0 24px 48px rgba(11,13,18,0.12);
  --shadow-brand: 0 12px 28px rgba(19,45,133,0.22);
  --shadow-inset: inset 0 1px 0 rgba(11,13,18,0.04);

  --radius-xs:  2px;
  --radius-sm:  4px;
  --radius-md:  6px;
  --radius-lg:  8px;
  --radius-xl:  12px;
  --radius-2xl: 16px;
  --radius-pill:999px;

  --font-display: "Lexend", "Verdana", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body:    "Nunito Sans", "Verdana", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;

  --ease-standard: cubic-bezier(0.2, 0.0, 0.0, 1.0);
  --ease-emphasis: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Page reset (scoped to insight-post body) ---------------------- */
body.arc-insight-post {
  margin: 0; padding: 0;
  font-family: var(--font-body);
  color: var(--fg-1);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
body.arc-insight-post *, body.arc-insight-post *::before, body.arc-insight-post *::after {
  box-sizing: border-box;
}
body.arc-insight-post a { color: inherit; text-decoration: none; }
body.arc-insight-post button { font: inherit; cursor: pointer; }
body.arc-insight-post img { max-width: 100%; display: block; }

/* ---------- Layout containers --------------------------------------------- */
.arc-container         { max-width: 1440px; margin: 0 auto; padding: 0 32px; }
.arc-container--narrow { max-width: 920px;  margin: 0 auto; padding: 0 32px; }

/* ---------- Eyebrow ------------------------------------------------------- */
.arc-eyebrow {
  font-family: var(--font-display); font-size: 12px; font-weight: 700;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--arusi-gold);
}

/* ---------- Buttons ------------------------------------------------------- */
.arc-btn {
  font-family: var(--font-display); font-weight: 600; font-size: 14px; letter-spacing: 0.005em;
  border-radius: var(--radius-md); padding: 0 18px; height: 40px;
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid transparent; transition: all 160ms var(--ease-standard);
  white-space: nowrap;
}
.arc-btn--primary   { background: var(--arusi-blue); color: #fff; box-shadow: var(--shadow-brand); }
.arc-btn--primary:hover { background: var(--blue-600); }
.arc-btn--secondary { background: #fff; color: var(--arusi-blue); border-color: var(--arusi-blue); }
.arc-btn--secondary:hover { background: var(--blue-50); }
.arc-btn--ghost     { background: transparent; color: var(--arusi-blue); border-color: var(--rule); }
.arc-btn--ghost:hover { background: var(--blue-50); border-color: var(--arusi-blue); }
.arc-btn--lg        { height: 48px; padding: 0 24px; font-size: 15px; }

/* ---------- Nav ----------------------------------------------------------- */
.arc-nav {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 32px;
  padding: 16px 32px;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}
.arc-nav__brand img { height: 28px; display: block; }
.arc-nav__links     { display: flex; gap: 28px; justify-content: center; }
.arc-nav__link {
  font-size: 14px; font-weight: 600; color: var(--fg-2);
  transition: color 140ms var(--ease-standard);
  font-family: var(--font-display);
}
.arc-nav__link:hover        { color: var(--arusi-blue); }
.arc-nav__link--active      { color: var(--arusi-blue); }
.arc-nav__actions           { display: flex; align-items: center; gap: 16px; }
.arc-nav__phone {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 13px; font-weight: 700; color: var(--arusi-blue);
  font-family: var(--font-display);
}

/* ---------- Reading progress bar ----------------------------------------- */
.arc-progress {
  position: fixed; left: 0; right: 0; top: 0; height: 3px; z-index: 60;
  background: transparent; pointer-events: none;
}
.arc-progress__fill {
  height: 100%; width: 0%;
  background: var(--arusi-gold);
  transition: width 80ms linear;
}

/* ---------- Breadcrumb ---------------------------------------------------- */
.arc-crumb {
  padding: 24px 0 0; font-size: 13px; color: var(--fg-3);
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.arc-crumb a         { color: var(--fg-3); transition: color 140ms var(--ease-standard); }
.arc-crumb a:hover   { color: var(--arusi-blue); }
.arc-crumb__sep      { color: var(--neutral-300); }
.arc-crumb__current  { color: var(--fg-1); font-weight: 600; }

/* ---------- Post hero ----------------------------------------------------- */
.arc-post-hero { padding: 40px 0 56px; background: var(--bg); }
.arc-post-hero__head { max-width: 100%; }
.arc-post-hero h1 {
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  font-size: 52px !important; line-height: 1.05 !important;
  letter-spacing: -0.025em !important;
  color: var(--neutral-ink) !important;
  margin: 14px 0 20px !important;
}
/* TL;DR callout — post excerpt displayed below the title */
.arc-tldr {
  max-width: 720px;
  margin: 8px 0 32px;
  padding: 14px 18px;
  background: var(--surface-tint);
  border: 1px solid var(--border);
  border-left: 3px solid var(--arusi-gold);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.arc-tldr p {
  font-family: var(--font-body);
  font-size: 16px; line-height: 1.6;
  color: var(--fg-2); margin: 0;
}

/* ---------- Byline -------------------------------------------------------- */
.arc-byline {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  padding: 20px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
}
.arc-byline__author     { display: flex; align-items: center; gap: 12px; }
.arc-avatar {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--arusi-blue); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 13px;
  letter-spacing: 0.02em; flex-shrink: 0;
}
.arc-byline__name  { font-family: var(--font-display); font-weight: 600; font-size: 14px; color: var(--fg-1); }
.arc-byline__role  { font-size: 12.5px; color: var(--fg-3); margin-top: 2px; }
.arc-byline__meta  {
  display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
  margin-left: auto; font-size: 13px; color: var(--fg-3);
}
.arc-byline__meta > span { display: inline-flex; align-items: center; gap: 6px; }
.arc-byline__meta svg    { color: var(--fg-3); }

/* ---------- Feature plate ------------------------------------------------- */
.arc-feature {
  margin: 48px 0 0; position: relative; aspect-ratio: 16 / 7;
  background: var(--arusi-blue); border-radius: var(--radius-xl);
  overflow: hidden; box-shadow: var(--shadow-xl);
}
.arc-feature__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}
/* When there's a real photo, show it */
.arc-feature__photo {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
}
.arc-feature__photo::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(19,45,133,0.72) 0%, rgba(19,45,133,0.18) 60%, transparent 100%);
}
.arc-feature__emblem { position: absolute; right: -60px; bottom: -60px; height: 360px; opacity: 0.08; }
.arc-feature__cap {
  position: absolute; left: 28px; bottom: 28px; right: 28px;
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
  color: #fff; z-index: 2;
}
.arc-feature__cap p {
  margin: 0; font-size: 12.5px; color: rgba(255,255,255,0.72);
  max-width: 520px; line-height: 1.5;
}
.arc-feature__tag {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  padding: 6px 12px; border-radius: 999px;
  font-family: var(--font-display); font-weight: 700; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: #fff; white-space: nowrap;
}

/* ---------- Article body layout ------------------------------------------ */
.arc-article { padding: 72px 0 96px; background: var(--bg); }
.arc-article__grid {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 80px;
  align-items: start;
}

/* ---------- TOC sidebar --------------------------------------------------- */
/* .arc-toc-rail stays in the grid and maintains column width.
   JS sets .arc-toc to position:fixed when scrolled. */
.arc-toc-rail { align-self: start; min-width: 0; }
.arc-toc      { /* position handled by JS */ }
.arc-toc__label {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3);
  margin-bottom: 16px; padding-bottom: 12px; border-bottom: 1px solid var(--rule);
}
.arc-toc__list {
  list-style: none; padding: 0; margin: 0;
  display: flex; flex-direction: column; gap: 10px;
}
.arc-toc__link {
  display: block; font-size: 13.5px; line-height: 1.45; color: var(--fg-2);
  padding-left: 12px; border-left: 2px solid transparent;
  transition: all 140ms var(--ease-standard);
}
.arc-toc__link:hover          { color: var(--arusi-blue); border-left-color: var(--blue-200); }
.arc-toc__link--active        { color: var(--arusi-blue); font-weight: 600; border-left-color: var(--arusi-blue); }
.arc-toc__share               { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--rule); }
.arc-toc__share-label {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-3); margin-bottom: 14px;
}
.arc-toc__share-row { display: flex; gap: 8px; }
.arc-share-btn {
  width: 36px; height: 36px; border-radius: var(--radius-md);
  border: 1px solid var(--border); background: #fff; color: var(--fg-2);
  display: inline-flex; align-items: center; justify-content: center;
  transition: all 140ms var(--ease-standard);
}
.arc-share-btn:hover { color: var(--arusi-blue); border-color: var(--arusi-blue); background: var(--blue-50); }

/* ---------- Prose --------------------------------------------------------- */
.arc-prose { max-width: 720px; font-size: 17px; line-height: 1.7; color: var(--fg-1); }
.arc-prose > * + * { margin-top: 24px; }

/* ── Font override ──────────────────────────────────────────────────────────
   Energo theme sets: body { font-family: 'Lato', sans-serif }
   Force Nunito Sans on all prose text elements.                            */
.arc-prose,
.arc-prose p,
.arc-prose li,
.arc-prose td,
.arc-prose figcaption,
.arc-prose blockquote { font-family: var(--font-body) !important; }

.arc-prose p  { margin: 0 0 1em 0; }
.arc-prose p.arc-lede { font-size: 19px; line-height: 1.6; color: var(--fg-1); font-weight: 500; }
.arc-prose .arc-dropcap::first-letter {
  font-family: var(--font-display); font-weight: 700;
  font-size: 64px; line-height: 0.9; float: left;
  padding: 4px 12px 0 0; color: var(--arusi-blue); letter-spacing: -0.02em;
}

/* ── Heading overrides ──────────────────────────────────────────────────────
   Energo theme sets: h1-h6 { font-weight: 400; margin: 0; color: #1e2434 }  */
.arc-prose h2 {
  font-family: var(--font-display) !important;
  font-weight: 700 !important;
  font-size: 28px !important; line-height: 1.2 !important;
  letter-spacing: -0.018em !important;
  color: var(--fg-1) !important;
  margin: 1.4em 0 0.6em 0 !important;
  scroll-margin-top: 96px;
}
.arc-prose h3 {
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  font-size: 20px !important; line-height: 1.3 !important;
  letter-spacing: -0.01em !important;
  color: var(--fg-1) !important;
  margin: 1.4em 0 0.6em 0 !important;
  scroll-margin-top: 96px;
}
.arc-prose h4 {
  font-family: var(--font-display) !important;
  font-weight: 600 !important;
  font-size: 17px !important; line-height: 1.35 !important;
  color: var(--fg-1) !important;
  margin-top: 28px !important; margin-bottom: 0 !important;
}

/* First element after a heading sits closer to the heading than the default
   > * + * gap of 24px, so the heading and its content read as a unit. */
.arc-prose h2 + * { margin-top: 14px !important; }
.arc-prose h3 + * { margin-top: 10px !important; }
.arc-prose h4 + * { margin-top:  8px !important; }

/* ── List overrides ─────────────────────────────────────────────────────────
   Energo theme sets: ul, li { list-style: none; padding: 0; margin: 0 }
   margin-top intentionally omitted so the > * + * rule supplies the
   24px gap before a list just like it does between paragraphs.             */
.arc-prose ul {
  list-style: disc !important;
  padding-left: 1.2em !important;
  margin: 0 0 1em 0 !important;
}
.arc-prose ol {
  list-style: decimal !important;
  padding-left: 1.2em !important;
  margin: 0 0 1em 0 !important;
}
.arc-prose li {
  list-style: inherit !important;
  padding-left: 0 !important;
}
.arc-prose li + li       { margin-top: 8px !important; }
.arc-prose ul li::marker { color: var(--arusi-blue); }

.arc-prose a {
  color: var(--arusi-blue); border-bottom: 1px solid var(--blue-200);
  transition: border-color 140ms var(--ease-standard);
}
.arc-prose a:hover       { border-bottom-color: var(--arusi-blue); }
.arc-prose strong        { font-weight: 700; color: var(--fg-1); }
.arc-prose hr            { border: 0; border-top: 1px solid var(--rule); margin: 40px 0; }
.arc-prose img           { border-radius: var(--radius-lg); width: 100%; }

/* Pull quote */
.arc-pullquote {
  margin: 56px 0; padding: 0 0 0 28px;
  border-left: 3px solid var(--arusi-gold);
}
.arc-pullquote p {
  font-family: var(--font-display); font-weight: 500;
  font-size: 26px; line-height: 1.3; letter-spacing: -0.012em;
  color: var(--neutral-ink); margin: 0;
}
.arc-pullquote cite {
  display: block; font-style: normal;
  font-size: 13px; color: var(--fg-3); margin-top: 14px;
  font-family: var(--font-body); letter-spacing: 0.02em;
}

/* Inline figure */
.arc-figure { margin: 40px 0; }
.arc-figure__frame {
  position: relative; aspect-ratio: 16 / 9;
  background: var(--surface-tint); border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
}
.arc-figure__frame img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; border-radius: 0;
}
.arc-figure__frame--placeholder::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(19,45,133,0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(19,45,133,0.05) 1px, transparent 1px);
  background-size: 32px 32px;
}
.arc-figure__frame--placeholder::after {
  content: ""; position: absolute; inset: 0;
  background: url("../images/emblem-blue.png") no-repeat center / 120px;
  opacity: 0.07;
}
.arc-figure figcaption {
  margin-top: 12px; padding-top: 10px; border-top: 1px solid var(--rule);
  font-size: 12.5px; color: var(--fg-3); line-height: 1.5;
  display: flex; gap: 14px; align-items: flex-start;
}
.arc-figure figcaption strong {
  font-family: var(--font-display); font-weight: 700; font-size: 11px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--arusi-blue);
  white-space: nowrap; padding-top: 1px;
}

/* Callout */
.arc-callout {
  position: relative;
  background: var(--surface-tint); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 24px 24px 22px; margin: 40px 0; overflow: hidden;
}
.arc-callout__tab {
  position: absolute; top: 0; left: 0; right: 0; height: 4px; background: var(--arusi-blue);
}
.arc-callout__label {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--arusi-blue);
  margin-bottom: 8px; display: inline-flex; align-items: center; gap: 8px;
}
.arc-callout h4 {
  font-family: var(--font-display); font-weight: 600; font-size: 17px;
  color: var(--fg-1); margin: 0 0 8px; letter-spacing: -0.005em;
}
.arc-callout p { font-size: 15px; line-height: 1.6; color: var(--fg-2); margin: 0; }

/* Tags + footer share row */
.arc-post-foot {
  margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--rule);
  display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap;
}
.arc-tags     { display: flex; gap: 8px; flex-wrap: wrap; }
.arc-tag {
  font-family: var(--font-body); font-size: 12.5px; font-weight: 600;
  padding: 6px 12px; border-radius: var(--radius-sm);
  background: #fff; border: 1px solid var(--border); color: var(--fg-2);
  transition: all 140ms var(--ease-standard);
}
.arc-tag:hover { border-color: var(--arusi-blue); color: var(--arusi-blue); }

/* Author bio card */
.arc-author {
  margin-top: 48px;
  background: var(--surface-tint); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 28px;
  display: grid; grid-template-columns: 64px 1fr auto; gap: 20px; align-items: center;
}
.arc-author__avatar {
  width: 64px; height: 64px; border-radius: 50%; overflow: hidden;
  background: var(--arusi-blue); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 700; font-size: 20px;
  letter-spacing: 0.02em; flex-shrink: 0;
}
.arc-author__avatar img { width: 100%; height: 100%; object-fit: cover; }
.arc-author__name  { font-family: var(--font-display); font-weight: 700; font-size: 16px; color: var(--fg-1); margin: 0 0 4px; }
.arc-author__role  { font-size: 13px; color: var(--fg-3); margin: 0 0 8px; }
.arc-author__bio   { font-size: 14px; line-height: 1.55; color: var(--fg-2); margin: 0; max-width: 540px; }

/* ---------- Related insights ---------------------------------------------- */
.arc-related {
  padding: 80px 0 96px;
  background: var(--surface-tint); border-top: 1px solid var(--rule);
}
.arc-related__head {
  display: flex; justify-content: space-between; align-items: end;
  margin-bottom: 36px; gap: 24px; flex-wrap: wrap;
}
.arc-related__head h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: 32px; line-height: 1.15; letter-spacing: -0.018em;
  color: var(--fg-1); margin: 12px 0 0;
}
.arc-related__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

/* Cards */
.arc-card {
  position: relative; background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 0;
  box-shadow: var(--shadow-sm); overflow: hidden;
  display: flex; flex-direction: column;
  transition: box-shadow 180ms var(--ease-standard), transform 180ms var(--ease-standard);
}
.arc-card:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }
.arc-card__thumb {
  position: relative; aspect-ratio: 16 / 9; background: var(--arusi-blue);
  overflow: hidden;
}
.arc-card__thumb img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
}
.arc-card__thumb::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(to right, rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 24px 24px;
}
.arc-card__thumb::after {
  content: ""; position: absolute; right: -30px; bottom: -30px; z-index: 1;
  width: 160px; height: 160px;
  background: url("../images/emblem-white.png") no-repeat center / contain;
  opacity: 0.1;
}
.arc-card--gold .arc-card__thumb { background: var(--arusi-gold); }
.arc-card--ink  .arc-card__thumb { background: var(--neutral-ink); }
.arc-card__body {
  padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1;
}
.arc-card__meta {
  font-family: var(--font-display); font-size: 11px; font-weight: 700;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--arusi-blue);
  display: flex; gap: 10px; align-items: center;
}
.arc-card__meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--neutral-300); }
.arc-card__meta--date { color: var(--fg-3); }
.arc-card h3 {
  font-family: var(--font-display); font-weight: 600; font-size: 18px;
  line-height: 1.3; letter-spacing: -0.008em; color: var(--fg-1); margin: 0;
}
.arc-card p  { font-size: 14px; line-height: 1.55; color: var(--fg-2); margin: 0; }
.arc-card__link {
  margin-top: auto; padding-top: 8px;
  font-family: var(--font-display); font-weight: 700; font-size: 11.5px;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--arusi-blue);
  display: inline-flex; align-items: center; gap: 6px;
}

/* ---------- Newsletter CTA ------------------------------------------------ */
.arc-cta { padding: 80px 0; background: var(--bg); border-top: 1px solid var(--rule); }
.arc-cta__inner { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.arc-cta__title {
  font-family: var(--font-display); font-weight: 700; font-size: 32px;
  line-height: 1.15; letter-spacing: -0.015em; color: var(--fg-1); margin: 12px 0 10px;
}
.arc-cta__sub   { font-size: 15px; line-height: 1.55; color: var(--fg-2); margin: 0; max-width: 480px; }
.arc-cta__form  { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.arc-cta__form input {
  grid-column: span 2;
  font-family: var(--font-body); font-size: 14px; color: var(--fg-1);
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md);
  padding: 12px 14px; box-shadow: var(--shadow-inset); outline: none;
}
.arc-cta__form input:focus { border-color: var(--arusi-blue); box-shadow: 0 0 0 3px rgba(19,45,133,0.14); }
.arc-cta__form button { grid-column: span 2; justify-content: center; }

/* ---------- Footer -------------------------------------------------------- */
.arc-footer { background: var(--arusi-blue); color: #fff; padding: 64px 0 24px; }
.arc-footer__inner {
  display: grid; grid-template-columns: 1.2fr 2fr;
  gap: 64px; padding-bottom: 56px;
}
.arc-footer__brand img { height: 52px; display: block; margin-bottom: 20px; }
.arc-footer__brand p   { font-size: 14px; line-height: 1.55; color: rgba(255,255,255,0.7); max-width: 360px; margin: 0; }
.arc-footer__cols      { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.arc-footer__col ul    { list-style: none; padding: 0; margin: 14px 0 0; display: flex; flex-direction: column; gap: 10px; }
.arc-footer__col li a  { font-size: 13.5px; color: rgba(255,255,255,0.78); transition: color 140ms var(--ease-standard); }
.arc-footer__col li a:hover { color: #fff; }
.arc-footer__col-label { font-family: var(--font-display); font-size: 12px; font-weight: 700; letter-spacing: 0.16em; text-transform: uppercase; color: var(--arusi-gold); }
.arc-footer__base {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.18);
  font-size: 12px; color: rgba(255,255,255,0.55);
}
.arc-footer__legal { display: flex; gap: 18px; }
.arc-footer__legal a:hover { color: #fff; }

/* ---------- Responsive ---------------------------------------------------- */
@media (max-width: 1020px) {
  .arc-article__grid { grid-template-columns: 1fr; gap: 0; }
  .arc-toc-rail      { display: none; }
  .arc-toc           { display: none !important; } /* hide JS-fixed copy too */
}
@media (max-width: 840px) {
  .arc-related__grid { grid-template-columns: repeat(2, 1fr); }
  .arc-cta__inner    { grid-template-columns: 1fr; }
  .arc-footer__inner { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .arc-post-hero h1     { font-size: 36px; }
  .arc-post-hero__dek   { font-size: 17px; }
  .arc-related__grid    { grid-template-columns: 1fr; }
  .arc-nav__links       { display: none; }
  .arc-byline__meta     { margin-left: 0; }
  .arc-author           { grid-template-columns: 56px 1fr; }
  .arc-author > .arc-btn { grid-column: 1 / -1; justify-self: start; }
  .arc-container        { padding: 0 20px; }
  .arc-nav              { padding: 14px 20px; }
}

/* Site header is preserved — single.php uses get_header() / get_footer(). */