/* ============================================================
   CSS Custom Properties — Vintage Vibes Color Scheme
   ============================================================ */
:root {
  /* Colors */
  --color-bg: #f9f5fb;
  --color-surface: #ede5f2;
  --color-surface-2: #e2d6ec;
  --color-primary: #1a1a3e;
  --color-primary-light: #2e2e6e;
  --color-accent: #7b4f8a;
  --color-accent-hover: #5e3a6b;
  --color-accent-2: #c9a0dc;
  --color-accent-3: #b07a55;
  --color-text: #1e1a24;
  --color-text-muted: #6b5f75;
  --color-border: #cbb8d9;
  --color-code-bg: #f0e9f7;
  --color-code-surface: #e8ddf2;
  --color-link: #5b3f7a;
  --color-link-hover: #3a2350;

  /* Typography */
  --font-sans: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', 'Courier New', monospace;
  --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --line-height-base: 1.7;

  /* Layout */
  --header-height: 68px;
  --content-max: 1440px;
  --content-padding: clamp(1rem, 4vw, 3rem);
  --section-gap: clamp(2rem, 5vw, 4rem);
  --radius: 8px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 3px rgba(26, 26, 62, 0.08);
  --shadow-md: 0 4px 16px rgba(26, 26, 62, 0.12);
  --shadow-lg: 0 8px 32px rgba(26, 26, 62, 0.16);

  /* Transitions */
  --transition: 200ms ease;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Anchor offset for sticky header */
:target,
h1[id], h2[id], h3[id], h4[id], h5[id], h6[id] {
  scroll-margin-top: calc(var(--header-height) + 1rem);
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--color-link); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--color-link-hover); }

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-sans);
  color: var(--color-primary);
  line-height: 1.25;
  margin-bottom: 0.6em;
}

h1 { font-size: clamp(1.8rem, 3vw + 0.5rem, 2.8rem); font-weight: 800; }
h2 { font-size: clamp(1.3rem, 2vw + 0.3rem, 2rem); font-weight: 700; margin-top: 2.5rem; }
h3 { font-size: clamp(1.1rem, 1.5vw + 0.2rem, 1.5rem); font-weight: 600; margin-top: 2rem; }
h4 { font-size: 1.1rem; font-weight: 600; margin-top: 1.5rem; }

p { margin-bottom: 1.25rem; }

/* Styled unordered lists */
ul {
  margin-bottom: 1.25rem;
  padding-left: 0;
  list-style: none;
}
ul > li {
  position: relative;
  padding-left: 1.6rem;
  margin-bottom: 0.5rem;
}
ul > li::before {
  content: '';
  position: absolute;
  left: 0.1rem;
  top: 0.6em;
  width: 7px;
  height: 7px;
  background: var(--color-accent-2);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Nested ul — smaller dot */
ul ul > li::before {
  width: 5px;
  height: 5px;
  background: var(--color-border);
  top: 0.65em;
}

/* Styled ordered lists */
ol {
  margin-bottom: 1.25rem;
  padding-left: 0;
  list-style: none;
  counter-reset: ol-counter;
}
ol > li {
  position: relative;
  padding-left: 2rem;
  margin-bottom: 0.5rem;
  counter-increment: ol-counter;
}
ol > li::before {
  content: counter(ol-counter);
  position: absolute;
  left: 0;
  top: 0.05em;
  width: 1.45rem;
  height: 1.45rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  font-size: 0.72em;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

strong { color: var(--color-primary); }

blockquote {
  border-left: 4px solid var(--color-accent-2);
  padding: 0.75rem 1.25rem;
  margin: 1.5rem 0;
  background: var(--color-surface);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-muted);
  font-style: italic;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 2.5rem 0;
}

/* Reset <summary> UA flex display so inline <code> inside stays in text flow */
summary { display: block; }

/* ============================================================
   Inline Code — blends with prose (no box, no background)
   ============================================================ */
:not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--color-text);
  background: none;
  border: none;
  padding: 0;
  border-radius: 0;
  white-space: normal;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* ============================================================
   Code Blocks
   ============================================================ */
.code-block-wrapper {
  position: relative;
  margin: 1.5rem 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

/* Language header bar */
.code-lang-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-primary);
  padding: 0.35rem 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent-2);
  user-select: none;
  min-height: 2rem;
}

.code-lang-label .lang-name {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.code-lang-label .lang-dot {
  width: 8px;
  height: 8px;
  background: var(--color-accent-2);
  border-radius: 50%;
  opacity: 0.7;
  flex-shrink: 0;
}

/* Move copy button into the label bar */
.code-lang-label .copy-btn {
  position: static;
  margin-left: auto;
  padding: 0.2rem 0.55rem;
  font-size: 0.7rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: rgba(255,255,255,0.7);
  border-radius: 4px;
  cursor: pointer;
  font-family: var(--font-sans);
  transition: var(--transition);
  line-height: 1.3;
  white-space: nowrap;
}
.code-lang-label .copy-btn:hover {
  background: var(--color-accent-2);
  color: var(--color-primary);
  border-color: var(--color-accent-2);
}
.code-lang-label .copy-btn.copied {
  background: #4a7c59;
  color: #fff;
  border-color: #4a7c59;
}

pre[class*="language-"],
pre.code-block-wrapper > pre {
  margin: 0 !important;
  padding: 1.35rem 1.5rem !important;
  background: var(--color-code-surface) !important;
  border-radius: 0 !important;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  line-height: 1.6;
  tab-size: 2;
}

/* Prism token colors — light Vintage Vibes palette (all pass WCAG AA 4.5:1 vs #e8ddf2 bg) */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #5a4a65; font-style: italic; }
.token.punctuation { color: #5e3a6b; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol { color: #a63d6f; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin { color: #2d6342; }
.token.operator, .token.entity, .token.url, .language-css .token.string, .style .token.string { color: #7a4a20; }
.token.atrule, .token.attr-value, .token.keyword { color: #5b3f7a; font-weight: 600; }
.token.function, .token.class-name { color: #1a5a8a; }
.token.regex, .token.important, .token.variable { color: #9b4f24; }

/* Fallback copy button (when no lang label — shouldn't occur normally) */
.copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  padding: 0.3rem 0.65rem;
  border-radius: 5px;
  cursor: pointer;
  transition: var(--transition);
  z-index: 2;
  line-height: 1.3;
}
.copy-btn:hover { background: var(--color-accent); color: #fff; border-color: var(--color-accent); }
.copy-btn.copied { background: #4a7c59; color: #fff; border-color: #4a7c59; }

/* ============================================================
   Tables
   ============================================================ */
.table-scroll { overflow-x: auto; margin: 1.5rem 0; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); }

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  min-width: 480px;
}

thead {
  background: var(--color-primary);
  color: #fff;
}

thead th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* Inline code inside dark table headers must inherit white text, not body-text color */
thead th code {
  color: inherit;
}

tbody tr:nth-child(even) { background: var(--color-surface); }
tbody tr:hover { background: var(--color-surface-2); }

td {
  padding: 0.65rem 1rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

/* ============================================================
   Interactive Checkboxes (from Markdown [ ] / [x])
   ============================================================ */
.task-list { list-style: none; padding-left: 0; }
.task-list-item { display: flex; align-items: flex-start; gap: 0.5rem; margin-bottom: 0.5rem; }
.task-list-item input[type="checkbox"] {
  margin-top: 0.3em;
  width: 1.1em;
  height: 1.1em;
  accent-color: var(--color-accent);
  cursor: pointer;
  flex-shrink: 0;
}
.task-list-item input[type="checkbox"]:checked + label,
.task-list-item input[type="checkbox"]:checked ~ * {
  text-decoration: line-through;
  color: var(--color-text-muted);
}

/* ============================================================
   FAQ Accordions
   ============================================================ */
.faq-section details {
  border-left: 4px solid var(--color-accent-2);
  border-radius: 0 var(--radius) var(--radius) 0;
  background: var(--color-surface);
  margin-bottom: 0.75rem;
  overflow: hidden;
  transition: var(--transition);
}

.faq-section details[open] {
  border-left-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.faq-section summary {
  padding: 1rem 1.2rem;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  list-style: none;
  user-select: none;
}

.faq-section summary::-webkit-details-marker { display: none; }

.faq-section summary::before {
  content: '▶';
  font-size: 0.7em;
  color: var(--color-accent);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-section details[open] summary::before { transform: rotate(90deg); }

.faq-section .faq-answer {
  padding: 0 1.2rem 1.1rem 1.2rem;
  color: var(--color-text);
}

.faq-section .faq-answer p:last-child { margin-bottom: 0; }

/* ============================================================
   Breadcrumbs
   ============================================================ */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb a {
  color: var(--color-text-muted);
  text-decoration: none;
}
.breadcrumb a:hover { color: var(--color-accent); text-decoration: underline; }
.breadcrumb .sep { color: var(--color-border); font-size: 0.75em; }
.breadcrumb .current { color: var(--color-primary); font-weight: 600; }

/* ============================================================
   Related Content Cards
   ============================================================ */
.related-content {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.related-content h2 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  font-size: 0.8rem;
  margin-top: 0;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  text-decoration: none;
  color: var(--color-text);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.related-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
  color: var(--color-text);
  text-decoration: none;
}

.related-card .card-title {
  font-weight: 600;
  color: var(--color-primary);
  font-size: 0.95rem;
}

.related-card .card-desc {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ============================================================
   Sticky Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 0 var(--content-padding);
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  flex-shrink: 0;
}

.site-logo img { width: 36px; height: 36px; border-radius: 8px; }
.site-logo:hover { color: var(--color-accent); text-decoration: none; }

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: auto;
  flex-wrap: wrap;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link[aria-current="page"],
.nav-link.active {
  background: var(--color-primary);
  color: #fff;
  text-decoration: none;
}

.nav-link .nav-icon { font-size: 1em; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  cursor: pointer;
  padding: 7px;
  margin-left: auto;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem var(--content-padding);
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    box-shadow: var(--shadow-md);
  }
  .site-nav.open { display: flex; }
  .nav-link { justify-content: flex-start; padding: 0.65rem 0.85rem; }
}

/* ============================================================
   Skip Link
   ============================================================ */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  z-index: 200;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: 0 0 6px 6px;
  text-decoration: none;
  font-weight: 600;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; }

/* ============================================================
   Main Content Wrapper
   ============================================================ */
.site-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.content-wrapper {
  max-width: var(--content-max);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem var(--content-padding) 4rem;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: 2.5rem var(--content-padding);
  margin-top: auto;
}

.footer-inner {
  max-width: var(--content-max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
}

.footer-col h3 {
  color: var(--color-accent-2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
  margin-top: 0;
}

/* Footer lists — plain, no custom bullets */
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-col li { margin-bottom: 0.4rem; }
.footer-col li::before { display: none; }

.footer-col a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--color-accent-2); }

.footer-brand p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  margin: 0.35rem 0 0;
  max-width: none;
}

.footer-bottom {
  max-width: var(--content-max);
  margin: 1.5rem auto 0;
  padding-top: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  text-align: center;
}

/* ============================================================
   Homepage — Hero
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #3a1f5a 60%, #5b3f7a 100%);
  color: #fff;
  padding: clamp(3rem, 8vw, 6rem) var(--content-padding);
  text-align: center;
}

.hero-inner {
  max-width: var(--content-max);
  margin: 0 auto;
}

.hero h1 {
  color: #fff;
  font-size: clamp(2rem, 4vw + 0.5rem, 3.5rem);
  margin-bottom: 1rem;
  text-shadow: 0 2px 12px rgba(0,0,0,0.3);
}

.hero-tagline {
  font-size: clamp(1rem, 1.5vw + 0.25rem, 1.3rem);
  color: var(--color-accent-2);
  max-width: 90ch;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.hero-desc {
  max-width: 80ch;
  margin: 0 auto 2.5rem;
  color: rgba(255,255,255,0.8);
  font-size: 1rem;
  line-height: 1.7;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  transition: transform 200ms, box-shadow 200ms, background 200ms;
  cursor: pointer;
}

.cta-btn:hover {
  transform: translateY(-3px);
  text-decoration: none;
}

.cta-btn-primary {
  background: var(--color-accent-2);
  color: var(--color-primary);
  box-shadow: 0 4px 18px rgba(201,160,220,0.4);
}
.cta-btn-primary:hover { background: #dbb8f0; box-shadow: 0 6px 24px rgba(201,160,220,0.55); color: var(--color-primary); }

.cta-btn-outline {
  background: rgba(255,255,255,0.1);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.35);
  backdrop-filter: blur(4px);
}
.cta-btn-outline:hover { background: rgba(255,255,255,0.2); border-color: rgba(255,255,255,0.6); color: #fff; }

.cta-btn .btn-icon { font-size: 1.2em; }

/* ============================================================
   Homepage — Sections
   ============================================================ */
.home-section {
  padding: var(--section-gap) var(--content-padding);
  max-width: var(--content-max);
  margin: 0 auto;
  width: 100%;
}

.section-heading {
  font-size: clamp(1.3rem, 2vw, 1.8rem);
  margin-bottom: 0.4rem;
}

.section-sub {
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  font-size: 1rem;
  max-width: 90ch;
}

/* Pillar cards */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
}

.pillar-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: var(--transition);
}

.pillar-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
  border-color: var(--color-accent);
}

.pillar-card-icon {
  font-size: 2.2rem;
  line-height: 1;
}

.pillar-card h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--color-primary);
}

.pillar-card p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  margin: 0;
  max-width: none;
}

.pillar-card ul {
  margin: 0;
  padding-left: 0;
  font-size: 0.875rem;
}
.pillar-card ul li { margin-bottom: 0.25rem; padding-left: 1.4rem; }
.pillar-card ul li::before { width: 5px; height: 5px; top: 0.65em; }

.pillar-card-link {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
}
.pillar-card-link:hover { color: var(--color-accent-hover); }

/* ============================================================
   Content article page
   ============================================================ */
.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 2px solid var(--color-border);
}

.article-header h1 {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.article-meta {
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.article-body h2::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--color-accent-2);
  border-radius: 2px;
  margin-top: 0.3rem;
}

/* Mermaid diagrams */
.mermaid {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  text-align: center;
}

/* Pillar hub page columns */
.pillar-children {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.child-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  text-decoration: none;
  color: var(--color-text);
  transition: var(--transition);
  display: block;
}
.child-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
  border-color: var(--color-accent);
  text-decoration: none;
  color: var(--color-text);
}
.child-card h3 {
  color: var(--color-primary);
  font-size: 1rem;
  margin: 0 0 0.4rem;
}
.child-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin: 0;
  max-width: none;
}

/* ============================================================
   Responsive utilities
   ============================================================ */
@media (max-width: 640px) {
  .pillar-grid { grid-template-columns: 1fr; }
  .related-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .cta-group { flex-direction: column; align-items: center; }
}