/* ============================================================
   CSS VARIABLES
   ============================================================ */
:root {
  /* Brand palette */
  --c-hunter:     #386641;
  --c-sage:       #6a994e;
  --c-ygreen:     #a7c957;
  --c-champagne:  #f2e8cf;
  --c-brick:      #bc4749;

  /* Functional */
  --c-bg:         #f7f6f2;
  --c-surface:    #ffffff;
  --c-text:       #1a2e1a;
  --c-text-mid:   #3d5c3d;
  --c-text-muted: #6a896a;
  --c-border:     #ddd7cb;
  --c-border-strong: #c8bfb0;

  /* Code */
  --c-code-bg:    #e7efe0;
  --c-code-bg-strong: #dde8d1;
  --c-code-border: #c7d4bb;
  --c-code-text:  #213822;

  /* Pillar accents */
  --c-pillar-core:    #386641;
  --c-pillar-vite:    #6a994e;
  --c-pillar-esbuild: #bc4749;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', Consolas, monospace;

  /* Spacing scale */
  --sp-1: 0.25rem;
  --sp-2: 0.5rem;
  --sp-3: 0.75rem;
  --sp-4: 1rem;
  --sp-5: 1.25rem;
  --sp-6: 1.5rem;
  --sp-8: 2rem;
  --sp-10: 2.5rem;
  --sp-12: 3rem;
  --sp-16: 4rem;
  --sp-20: 5rem;
  --sp-24: 6rem;

  /* Layout */
  --max-w: 1360px;
  --max-prose: 82ch;
  --nav-h: 64px;

  /* Shape */
  --r-sm: 4px;
  --r:    8px;
  --r-lg: 12px;
  --r-xl: 20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 6px rgba(0,0,0,.08);
  --shadow:    0 2px 8px rgba(0,0,0,.05), 0 8px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 8px 20px rgba(0,0,0,.06), 0 20px 48px rgba(0,0,0,.10);
  --shadow-hover: 0 12px 28px rgba(0,0,0,.10), 0 24px 56px rgba(0,0,0,.12);

  /* Transitions */
  --t:    200ms ease;
  --t-lg: 360ms ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + var(--sp-6));
}

body {
  font-family: var(--font-sans);
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--c-sage); text-decoration: underline; text-underline-offset: 3px; }
a:hover { color: var(--c-hunter); }

/* ============================================================
   UTILITIES
   ============================================================ */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-6);
}

.skip-link {
  position: absolute; top: -100%; left: var(--sp-4);
  background: var(--c-ygreen); color: var(--c-text);
  padding: var(--sp-3) var(--sp-6); font-weight: 600;
  border-radius: 0 0 var(--r) var(--r); text-decoration: none;
  transition: top var(--t);
  z-index: 200;
}
.skip-link:focus { top: 0; }

/* ============================================================
   NAVIGATION
   ============================================================ */
.site-header {
  position: sticky; top: 0;
  height: var(--nav-h);
  background: var(--c-hunter);
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0,0,0,.18);
}

.nav-container {
  display: flex; align-items: center; gap: var(--sp-6);
  max-width: var(--max-w); margin-inline: auto;
  padding-inline: var(--sp-6); height: 100%;
}

.site-logo {
  display: flex; align-items: center; gap: var(--sp-3);
  text-decoration: none; flex-shrink: 0;
}

.logo-mark { flex-shrink: 0; }

.logo-text {
  font-size: 1.125rem; font-weight: 700;
  color: #fff; letter-spacing: -0.01em;
}

.logo-accent { color: var(--c-ygreen); }

.nav-menu { margin-left: auto; }

.nav-list {
  display: flex; gap: var(--sp-2); list-style: none;
}

.nav-link {
  display: block;
  color: rgba(255,255,255,.82);
  text-decoration: none;
  font-size: 0.9375rem; font-weight: 500;
  padding: var(--sp-2) var(--sp-4);
  border-radius: var(--r-sm);
  transition: color var(--t), background var(--t);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: 4px; left: var(--sp-4); right: var(--sp-4);
  height: 2px; background: var(--c-ygreen);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--t);
  border-radius: 2px;
}
.nav-link:hover { color: #fff; background: rgba(255,255,255,.08); }
.nav-link:hover::after { transform: scaleX(1); }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px; padding: var(--sp-2);
  background: none; border: none; cursor: pointer;
  margin-left: auto;
}
.nav-toggle-bar {
  display: block; width: 100%; height: 2px;
  background: #fff; border-radius: 2px;
  transition: transform var(--t), opacity var(--t);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans); font-size: 0.9375rem; font-weight: 600;
  border-radius: var(--r);
  text-decoration: none;
  transition: background var(--t), transform var(--t), box-shadow var(--t);
  cursor: pointer; border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--c-ygreen); color: var(--c-text);
  box-shadow: 0 4px 12px rgba(167,201,87,.35);
}
.btn-primary:hover {
  background: #b8d45f; color: var(--c-text);
  box-shadow: 0 8px 20px rgba(167,201,87,.45);
}

.btn-secondary {
  background: transparent; color: #fff;
  border-color: rgba(255,255,255,.4);
}
.btn-secondary:hover { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.7); color: #fff; }

/* ============================================================
   HERO SECTION (homepage)
   ============================================================ */
.hero {
  position: relative;
  background: linear-gradient(135deg, #1e3a20 0%, var(--c-hunter) 40%, #4a7c35 100%);
  overflow: hidden;
  min-height: 90vh;
  display: flex; align-items: center;
}

.hero-bg { position: absolute; inset: 0; pointer-events: none; }

.hero-glow {
  position: absolute; border-radius: 50%;
  filter: blur(80px); opacity: .18;
}
.hero-glow--1 {
  width: 600px; height: 600px;
  background: var(--c-ygreen);
  top: -200px; right: -100px;
}
.hero-glow--2 {
  width: 400px; height: 400px;
  background: var(--c-sage);
  bottom: -100px; left: 5%;
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--sp-16); align-items: center;
  padding-block: var(--sp-24);
}

.hero-badge {
  display: inline-block;
  background: rgba(167,201,87,.2); color: var(--c-ygreen);
  border: 1px solid rgba(167,201,87,.35);
  padding: var(--sp-1) var(--sp-4);
  border-radius: 100px; font-size: 0.8125rem; font-weight: 600;
  letter-spacing: 0.04em; text-transform: uppercase;
  margin-bottom: var(--sp-5);
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800; line-height: 1.1;
  color: #fff; letter-spacing: -0.025em;
  margin-bottom: var(--sp-6);
}

.hero-title-accent {
  color: var(--c-ygreen);
  display: block;
}

.hero-desc {
  font-size: 1.125rem; line-height: 1.7;
  color: rgba(255,255,255,.78);
  max-width: 52ch;
  margin-bottom: var(--sp-8);
}

.hero-actions {
  display: flex; flex-wrap: wrap; gap: var(--sp-4);
  margin-bottom: var(--sp-10);
}

.hero-stats {
  display: flex; align-items: center; gap: var(--sp-6);
}
.hero-stat { text-align: center; }
.hero-stat strong {
  display: block; font-size: 1.625rem; font-weight: 800;
  color: var(--c-ygreen); line-height: 1;
}
.hero-stat span { font-size: 0.8125rem; color: rgba(255,255,255,.6); margin-top: var(--sp-1); }
.hero-stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,.15); }

/* Code window in hero */
.hero-code-panel { animation: floatUp .9s ease both; }
@keyframes floatUp { from { opacity:0; transform:translateY(24px); } to { opacity:1; transform:translateY(0); } }

.code-window {
  background: var(--c-code-bg);
  border-radius: var(--r-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--c-code-border);
}

.code-window-chrome {
  display: flex; align-items: center; gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-5);
  background: var(--c-code-bg-strong);
  border-bottom: 1px solid var(--c-code-border);
}

.dot {
  width: 12px; height: 12px; border-radius: 50%;
}
.dot--red    { background: #ff5f57; }
.dot--yellow { background: #ffbd2e; }
.dot--green  { background: #28c940; }

.code-window-label {
  margin-left: var(--sp-4); font-size: 0.8125rem;
  color: rgba(26,46,26,.55); font-family: var(--font-mono);
}

.code-window-body {
  padding: var(--sp-6);
  font-family: var(--font-mono); font-size: 0.875rem;
  line-height: 1.7; overflow-x: auto;
  color: var(--c-code-text);
  background: transparent; border: none;
}

/* Inline token colors for hero code panel */
.ct-kw  { color: #5d7d1e; font-weight: 600; }
.ct-fn  { color: #2f6a78; }
.ct-str { color: #7c5a08; }
.ct-op  { color: #556d58; }
.ct-p   { color: #70816e; }

/* ============================================================
   PILLARS SECTION (homepage)
   ============================================================ */
.pillars-section {
  padding-block: var(--sp-24);
}

.section-header {
  text-align: center;
  max-width: 660px; margin-inline: auto;
  margin-bottom: var(--sp-16);
}

.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800; color: var(--c-text);
  letter-spacing: -0.02em; margin-bottom: var(--sp-4);
}

.section-subtitle {
  font-size: 1.0625rem; color: var(--c-text-mid); line-height: 1.6;
}

.pillar-cards {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-6);
}

.pillar-card {
  position: relative;
  background: var(--c-surface);
  border-radius: var(--r-xl);
  padding: var(--sp-8);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow);
  transition: transform var(--t), box-shadow var(--t);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.pillar-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 4px;
  border-radius: var(--r-xl) var(--r-xl) 0 0;
}
.pillar-card.pillar-core::before   { background: var(--c-pillar-core);   }
.pillar-card.pillar-vite::before   { background: var(--c-pillar-vite);   }
.pillar-card.pillar-esbuild::before { background: var(--c-pillar-esbuild); }

.pillar-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-hover); }

.pillar-card-icon {
  margin-bottom: var(--sp-5);
}
.pillar-core    .pillar-card-icon { color: var(--c-pillar-core);   }
.pillar-vite    .pillar-card-icon { color: var(--c-pillar-vite);   }
.pillar-esbuild .pillar-card-icon { color: var(--c-pillar-esbuild); }

.pillar-card-title {
  font-size: 1.25rem; font-weight: 700;
  color: var(--c-text); letter-spacing: -0.01em;
  margin-bottom: var(--sp-3);
}

.pillar-card-excerpt {
  font-size: 0.9375rem; color: var(--c-text-mid); line-height: 1.6;
  margin-bottom: var(--sp-5);
}

.pillar-card-topics {
  list-style: none; margin-bottom: var(--sp-6);
  display: flex; flex-direction: column; gap: var(--sp-2);
}
.pillar-card-topics li {
  font-size: 0.875rem;
  padding-left: var(--sp-4); position: relative;
}
.pillar-card-topics li::before {
  content: '→'; position: absolute; left: 0;
  color: var(--c-text-muted); font-size: 0.8125rem;
}
.pillar-card-topics a {
  color: var(--c-text-mid); text-decoration: none;
}
.pillar-card-topics a:hover { color: var(--c-hunter); }

.pillar-card-link {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  margin-top: auto; padding-top: var(--sp-5);
  font-weight: 600; font-size: 0.9375rem;
  text-decoration: none;
  color: var(--c-hunter);
}
.pillar-core    .pillar-card-link { color: var(--c-pillar-core);   }
.pillar-vite    .pillar-card-link { color: var(--c-pillar-vite);   }
.pillar-esbuild .pillar-card-link { color: var(--c-pillar-esbuild); }

.pillar-card-link span { transition: transform var(--t); }
.pillar-card:hover .pillar-card-link span { transform: translateX(4px); }

/* stretched link trick */
.stretched-link::after {
  content: ''; position: absolute; inset: 0;
  z-index: 1; cursor: pointer;
}

/* ============================================================
   VALUE / FEATURES SECTION (homepage)
   ============================================================ */
.value-section {
  background: var(--c-hunter);
  padding-block: var(--sp-20);
}

.value-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--sp-8);
}

.value-item {
  color: rgba(255,255,255,.88);
}

.value-icon {
  width: 52px; height: 52px;
  background: rgba(167,201,87,.15);
  border-radius: var(--r);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-5);
  color: var(--c-ygreen);
}

.value-item h3 {
  font-size: 1rem; font-weight: 700;
  color: #fff; margin-bottom: var(--sp-3);
}

.value-item p {
  font-size: 0.9rem; line-height: 1.65;
  color: rgba(255,255,255,.68);
}

/* ============================================================
   PAGE BANNER (pillar/category/article pages)
   ============================================================ */
.page-banner {
  padding-block: var(--sp-6) var(--sp-5);
}
.page-banner--slim { padding-block: var(--sp-4) var(--sp-3); }

.page-banner.pillar-core    { background: linear-gradient(135deg, #1e3a20, var(--c-hunter)); }
.page-banner.pillar-vite    { background: linear-gradient(135deg, var(--c-hunter), var(--c-sage)); }
.page-banner.pillar-esbuild { background: linear-gradient(135deg, #5a1f20, var(--c-brick)); }

/* ============================================================
   BREADCRUMBS
   ============================================================ */
.breadcrumb ol {
  display: flex; flex-wrap: wrap; align-items: center;
  gap: 0 var(--sp-2); list-style: none;
}

.breadcrumb li {
  display: flex; align-items: center; gap: var(--sp-2);
  font-size: 0.875rem; color: rgba(255,255,255,.65);
}
.breadcrumb li + li::before {
  content: '/'; color: rgba(255,255,255,.3);
}
.breadcrumb a {
  color: rgba(255,255,255,.75); text-decoration: none;
  transition: color var(--t);
}
.breadcrumb a:hover { color: var(--c-ygreen); }
.breadcrumb [aria-current="page"] { color: rgba(255,255,255,.9); }

/* ============================================================
   PAGE LAYOUTS
   ============================================================ */
.page-layout {
  padding-block: var(--sp-12) var(--sp-20);
  max-width: var(--max-w);
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 290px;
  gap: var(--sp-12);
  align-items: start;
  padding-block: var(--sp-12) var(--sp-20);
  max-width: var(--max-w);
}

/* ============================================================
   CARDS (child links)
   ============================================================ */
.child-cards-section {
  margin-top: var(--sp-20);
  padding-top: var(--sp-12);
  border-top: 1px solid var(--c-border);
}

.child-cards-heading {
  font-size: 1.5rem; font-weight: 700;
  color: var(--c-text); letter-spacing: -0.01em;
  margin-bottom: var(--sp-8);
}

.card-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--sp-5);
}
.card-grid--articles { grid-template-columns: repeat(2, 1fr); }

.card {
  display: flex; flex-direction: column;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-6);
  text-decoration: none;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
  box-shadow: var(--shadow-sm);
  position: relative; overflow: hidden;
}
.card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  border-radius: var(--r-lg) 0 0 var(--r-lg);
  transition: width var(--t);
}
.card.pillar-core::before    { background: var(--c-pillar-core);   }
.card.pillar-vite::before    { background: var(--c-pillar-vite);   }
.card.pillar-esbuild::before { background: var(--c-pillar-esbuild); }

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--c-border-strong);
}
.card:hover::before { width: 5px; }

.card-body { flex: 1; padding-left: var(--sp-3); }

.card-title {
  font-size: 1rem; font-weight: 700;
  color: var(--c-text); margin-bottom: var(--sp-3);
  line-height: 1.3;
  transition: color var(--t);
}
.card:hover .card-title { color: var(--c-hunter); }

.card-excerpt {
  font-size: 0.875rem; color: var(--c-text-mid);
  line-height: 1.6; margin-bottom: var(--sp-3);
}

.card-subtopics {
  list-style: none; margin-top: var(--sp-3);
  display: flex; flex-direction: column; gap: 4px;
}
.card-subtopics li {
  font-size: 0.8125rem; color: var(--c-text-muted);
  padding-left: var(--sp-4); position: relative;
}
.card-subtopics li::before {
  content: '·'; position: absolute; left: var(--sp-1);
}

.card-cta {
  display: block;
  margin-top: var(--sp-4); padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
  font-size: 0.875rem; font-weight: 600;
  color: var(--c-text-muted);
  transition: color var(--t);
}
.card:hover .card-cta { color: var(--c-hunter); }

/* ============================================================
   TABLE OF CONTENTS sidebar
   ============================================================ */
.article-toc {
  position: sticky; top: calc(var(--nav-h) + var(--sp-8));
  max-height: calc(100vh - var(--nav-h) - var(--sp-16));
  overflow-y: auto;
  order: 2;
}

.toc-inner {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: var(--sp-5);
}

.toc-heading {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--c-text-muted);
  margin-bottom: var(--sp-4);
}

#toc-nav ul { list-style: none; }
#toc-nav li + li { margin-top: var(--sp-1); }
#toc-nav a {
  display: block;
  font-size: 0.8125rem; line-height: 1.5;
  color: var(--c-text-mid); text-decoration: none;
  padding: var(--sp-1) var(--sp-2);
  border-radius: var(--r-sm);
  transition: background var(--t), color var(--t);
}
#toc-nav a:hover { background: var(--c-bg); color: var(--c-hunter); }
#toc-nav a.toc-active {
  color: var(--c-hunter); font-weight: 600;
  background: rgba(56,102,65,.08);
}
#toc-nav .toc-h3 { padding-left: var(--sp-5); }

/* ============================================================
   PROSE — Article typography
   ============================================================ */
.prose {
  color: var(--c-text);
  max-width: none;
  width: 100%;
}

.content-page .prose > h1:first-child {
  position: relative;
  font-size: clamp(2.35rem, 4.4vw, 3.9rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin-bottom: var(--sp-8);
  padding-bottom: var(--sp-6);
  max-width: 18ch;
}

.content-page .prose > h1:first-child::before {
  content: '';
  position: absolute;
  left: -0.35rem;
  top: -0.4rem;
  width: 72px;
  height: 72px;
  background: radial-gradient(circle, rgba(167,201,87,.34) 0%, rgba(167,201,87,0) 72%);
  filter: blur(8px);
  z-index: -1;
}

.content-page .prose > h1:first-child::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(220px, 34%);
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--c-ygreen), var(--c-sage));
  box-shadow: 0 10px 24px rgba(106,153,78,.24);
}

.prose h1 {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 800; line-height: 1.15;
  color: var(--c-text); letter-spacing: -0.025em;
  margin-bottom: var(--sp-6);
  margin-top: 0;
}

.prose h2 {
  font-size: 1.5rem; font-weight: 700; line-height: 1.25;
  color: var(--c-text); letter-spacing: -0.015em;
  margin-top: var(--sp-12); margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-3);
  border-bottom: 1px solid var(--c-border);
}

.content-page .prose h2 {
  position: relative;
  margin-top: var(--sp-14);
  margin-bottom: var(--sp-6);
  padding: var(--sp-4) var(--sp-5) var(--sp-4) calc(var(--sp-5) + var(--sp-2));
  border: 1px solid rgba(106,153,78,.15);
  border-left: 6px solid var(--c-sage);
  border-radius: var(--r-lg);
  background: linear-gradient(90deg, rgba(167,201,87,.14), rgba(242,232,207,.62));
  box-shadow: var(--shadow-sm);
}

.content-page .prose h2::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(255,255,255,.34), rgba(255,255,255,0));
  pointer-events: none;
}

.prose h3 {
  font-size: 1.125rem; font-weight: 700; line-height: 1.3;
  color: var(--c-text); letter-spacing: -0.01em;
  margin-top: var(--sp-8); margin-bottom: var(--sp-3);
}

.content-page .prose h3 {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-10);
  font-size: 1.2rem;
}

.content-page .prose h3::before {
  content: '';
  flex: 0 0 14px;
  width: 14px;
  height: 14px;
  border-radius: 4px;
  background: linear-gradient(135deg, var(--c-ygreen), var(--c-sage));
  box-shadow: 0 4px 12px rgba(106,153,78,.22);
}

.prose h4 {
  font-size: 1rem; font-weight: 700;
  color: var(--c-text-mid);
  margin-top: var(--sp-6); margin-bottom: var(--sp-2);
}

.prose p { margin-bottom: var(--sp-5); }
.prose p:last-child { margin-bottom: 0; }

.content-page .prose > p,
.content-page .prose li,
.content-page .prose blockquote {
  max-width: none;
}

.prose ul, .prose ol {
  margin-bottom: var(--sp-5);
  padding-left: var(--sp-6);
}
.prose li { margin-bottom: var(--sp-2); }
.prose li > ul, .prose li > ol { margin-top: var(--sp-2); margin-bottom: 0; }

.prose strong { font-weight: 700; color: var(--c-text); }
.prose em     { font-style: italic; }

.prose a {
  color: var(--c-sage); font-weight: 500;
  text-underline-offset: 3px;
  transition: color var(--t);
}
.prose a:hover { color: var(--c-hunter); }

.prose blockquote {
  margin-block: var(--sp-6);
  padding: var(--sp-5) var(--sp-6);
  background: rgba(56,102,65,.06);
  border-left: 4px solid var(--c-sage);
  border-radius: 0 var(--r) var(--r) 0;
  font-size: 1rem; color: var(--c-text-mid);
}

.prose hr {
  border: none; border-top: 1px solid var(--c-border);
  margin-block: var(--sp-10);
}

/* Inline code */
.prose code:not([class]) {
  font-family: var(--font-mono); font-size: 0.875em;
  background: rgba(56,102,65,.09);
  color: var(--c-hunter);
  padding: 0.15em 0.4em;
  border-radius: var(--r-sm);
  border: 1px solid rgba(56,102,65,.15);
}

/* Heading anchor links */
.prose .anchor-link {
  text-decoration: none; color: inherit;
}
.prose .anchor-link:hover { color: inherit; }

/* ============================================================
   CODE BLOCKS (Prism)
   ============================================================ */
.prose pre, pre.code-window-body {
  margin-block: var(--sp-8);
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
}

/* code block wrapper and toolbar */
.code-block-wrapper {
  position: relative;
  margin-block: var(--sp-8);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--c-code-border);
  background: linear-gradient(180deg, var(--c-code-bg-strong), var(--c-code-bg));
  box-shadow: var(--shadow), 0 0 0 1px var(--c-code-border);
}

.code-block-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: rgba(255,255,255,.42);
  border-bottom: 1px solid rgba(56,102,65,.12);
}

.code-block-language {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(255,255,255,.66);
  border: 1px solid rgba(56,102,65,.12);
  color: rgba(26,46,26,.66);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-family: var(--font-mono);
}

.copy-btn {
  position: static;
  padding: var(--sp-1) var(--sp-3);
  background: rgba(56,102,65,.09); color: var(--c-text-mid);
  border: 1px solid rgba(56,102,65,.14);
  border-radius: var(--r-sm); font-size: 0.75rem; font-family: var(--font-sans);
  cursor: pointer; transition: background var(--t), color var(--t);
  z-index: 2;
}
.copy-btn:hover { background: rgba(56,102,65,.16); color: var(--c-hunter); }
.copy-btn.copied { background: rgba(167,201,87,.22); color: var(--c-hunter); border-color: rgba(106,153,78,.28); }

/* Prism overrides — site-matched light green theme */
:not(pre) > code[class*="language-"] {
  background: var(--c-code-bg);
  color: var(--c-code-text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.75;
  padding: var(--sp-6);
  overflow-x: auto;
  tab-size: 2;
  hyphens: none;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
}

pre[class*="language-"] {
  margin: 0;
  border-radius: 0;
  box-shadow: none;
  background: var(--c-code-bg);
  color: var(--c-code-text);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.75;
  padding: var(--sp-6);
  padding-inline-start: calc(var(--sp-6) + var(--sp-2));
  overflow-x: auto;
  tab-size: 2;
  hyphens: none;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  word-wrap: normal;
}

.prose pre {
  padding: 0;
  background: transparent;
  border: none;
}

/* Prism token colors */
.token.comment, .token.prolog, .token.doctype, .token.cdata {
  color: #6c8371; font-style: italic;
}
.token.namespace { opacity: .8; }
.token.property, .token.tag, .token.constant, .token.symbol, .token.deleted {
  color: #356d57;
}
.token.boolean, .token.number { color: #9d5a23; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted {
  color: #7c5a08;
}
.token.operator, .token.entity, .token.url,
.language-css .token.string, .style .token.string, .token.variable {
  color: #556d58;
}
.token.atrule, .token.attr-value, .token.function, .token.class-name {
  color: #2f6a78;
}
.token.keyword { color: #5d7d1e; font-weight: 600; }
.token.regex, .token.important { color: #9d5a23; }
.token.important, .token.bold { font-weight: bold; }
.token.italic { font-style: italic; }
.token.entity { cursor: help; }
.token.punctuation { color: #70816e; }

/* Toggleable task lists */
.task-list {
  list-style: none;
  padding-left: 0;
}

.task-list-item {
  margin-bottom: var(--sp-3);
}

.task-list-item::marker,
.task-list-item::before {
  content: none;
}

.task-list-label {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  cursor: pointer;
}

.task-list-checkbox {
  margin-top: 0.25rem;
  inline-size: 1rem;
  block-size: 1rem;
  accent-color: var(--c-sage);
  flex: 0 0 auto;
}

.task-list-text {
  flex: 1;
}

.task-list-checkbox:checked + .task-list-text {
  color: var(--c-text-muted);
  text-decoration: line-through;
}

/* ============================================================
   ARTICLE FOOTER
   ============================================================ */
.article-footer {
  margin-top: var(--sp-16); padding-top: var(--sp-8);
  border-top: 1px solid var(--c-border);
}

.back-link {
  display: inline-flex; align-items: center; gap: var(--sp-2);
  font-size: 0.9375rem; font-weight: 600;
  color: var(--c-text-mid); text-decoration: none;
  padding: var(--sp-3) var(--sp-5);
  border: 1px solid var(--c-border); border-radius: var(--r);
  transition: background var(--t), border-color var(--t), color var(--t);
}
.back-link:hover {
  background: var(--c-surface); border-color: var(--c-border-strong);
  color: var(--c-hunter);
}

/* ============================================================
   PILLAR PROSE (wider for overview content)
   ============================================================ */
.pillar-prose, .category-prose {
  max-width: none;
}

.article-prose {
  max-width: none;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: #162516;
  border-top: 1px solid rgba(255,255,255,.06);
}

.footer-inner {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: var(--sp-12);
  max-width: var(--max-w); margin-inline: auto;
  padding: var(--sp-16) var(--sp-6) var(--sp-12);
}

.footer-brand {
  max-width: 280px;
}

.footer-logo {
  display: inline-block;
  font-size: 1.125rem; font-weight: 700;
  color: #fff; text-decoration: none;
  margin-bottom: var(--sp-4);
}
.footer-logo:hover { color: var(--c-ygreen); }

.footer-brand p {
  font-size: 0.875rem; color: rgba(255,255,255,.5); line-height: 1.65;
}

.footer-nav {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--sp-8);
}

.footer-nav-col h3 {
  font-size: 0.75rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: rgba(255,255,255,.4);
  margin-bottom: var(--sp-5);
}

.footer-nav-col ul { list-style: none; display: flex; flex-direction: column; gap: var(--sp-3); }

.footer-nav-col a {
  font-size: 0.875rem; color: rgba(255,255,255,.6); text-decoration: none;
  transition: color var(--t);
}
.footer-nav-col a:hover { color: var(--c-ygreen); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.06);
  padding: var(--sp-6);
  text-align: center;
  font-size: 0.8125rem; color: rgba(255,255,255,.3);
}
.footer-bottom a { color: rgba(255,255,255,.45); }
.footer-bottom a:hover { color: var(--c-ygreen); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; gap: var(--sp-12); }
  .hero-code-panel { display: none; }
  .hero { min-height: auto; }
  .hero-inner { padding-block: var(--sp-20); }
  .pillar-cards { grid-template-columns: 1fr; max-width: 600px; margin-inline: auto; }
  .value-grid { grid-template-columns: repeat(2, 1fr); }
  .article-layout { grid-template-columns: 1fr; }
  .article-toc { position: static; max-height: none; order: -1; }
  .toc-inner { background: var(--c-bg); }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-brand { max-width: 100%; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }

  .nav-menu {
    display: none;
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    background: #2a5030;
    border-top: 1px solid rgba(255,255,255,.08);
    padding: var(--sp-4);
  }
  .nav-menu.is-open { display: block; }
  .nav-list { flex-direction: column; gap: 0; }
  .nav-link { padding: var(--sp-3) var(--sp-4); }
  .nav-link::after { display: none; }

  .site-header { position: relative; }

  .hero-inner { padding-block: var(--sp-16); }
  .hero-title { font-size: 2.25rem; }
  .hero-actions { flex-direction: column; }
  .hero-stats { gap: var(--sp-4); }

  .pillars-section { padding-block: var(--sp-16); }
  .pillar-cards { grid-template-columns: 1fr; max-width: 100%; }
  .value-grid { grid-template-columns: 1fr; gap: var(--sp-6); }

  .card-grid, .card-grid--articles { grid-template-columns: 1fr; }

  .footer-nav { grid-template-columns: 1fr 1fr; }
  .page-layout { padding-block: var(--sp-8) var(--sp-12); }

  .content-page .prose > h1:first-child {
    font-size: clamp(2rem, 8vw, 2.7rem);
    max-width: none;
  }

  .content-page .prose h2 {
    padding: var(--sp-4);
  }
}

@media (max-width: 480px) {
  .footer-nav { grid-template-columns: 1fr; }
  .prose h1 { font-size: 1.75rem; }
  .prose h2 { font-size: 1.25rem; }
  .hero-stats { flex-wrap: wrap; gap: var(--sp-4); }
  .hero-stat-divider { display: none; }
}

/* ============================================================
   PRINT
   ============================================================ */
@media print {
  .site-header, .site-footer, .article-toc, .child-cards-section { display: none; }
  .article-layout { grid-template-columns: 1fr; }
  .prose pre { overflow-x: hidden; white-space: pre-wrap; }
  a::after { content: " (" attr(href) ")"; font-size: 0.8em; }
}