/* ==========================================================================
   Pharmacy Inventory — Golden Summer Fields theme
   Muted olive greens + golden beige notes, evoking hay bales and sunlit
   meadows. Light, elegant, professional.
   ========================================================================== */

:root {
  /* Base palette */
  --color-bg: #faf6ec;            /* warm parchment */
  --color-bg-alt: #f4ecd6;        /* hay bale */
  --color-bg-card: #ffffff;
  --color-bg-soft: #f0e6c8;
  --color-bg-codeline: #f5edd2;   /* inline code bg */
  --color-bg-codeblock: #fbf7e7;  /* code block bg */

  --color-ink: #2f3a26;           /* deep olive ink */
  --color-ink-soft: #4d5a3f;
  --color-ink-muted: #6a755a;

  --color-olive: #6b7a3a;
  --color-olive-deep: #4a5a26;
  --color-olive-bright: #8aa04a;
  --color-gold: #c9a24a;          /* sun-bleached gold */
  --color-gold-bright: #e0b75a;
  --color-amber: #b87a2e;
  --color-wheat: #d4b97a;
  --color-meadow: #8bb15f;
  --color-rust: #b6552d;
  --color-sky: #6b8aa5;

  --color-accent: var(--color-olive-deep);
  --color-link: #5a6e2a;
  --color-link-hover: #c9a24a;
  --color-border: #e3d8b5;
  --color-border-soft: #ede2c2;
  --color-shadow: rgba(74, 90, 38, 0.10);

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-serif: "Source Serif Pro", "Iowan Old Style", Georgia, serif;
  --font-mono: "JetBrains Mono", "Fira Code", "SF Mono", Consolas, "Liberation Mono", monospace;

  --fs-xs: 0.78rem;
  --fs-sm: 0.88rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.4rem;
  --fs-2xl: 1.85rem;
  --fs-3xl: 2.4rem;
  --fs-4xl: 3.2rem;

  --leading-tight: 1.3;
  --leading-snug: 1.55;
  --leading-normal: 1.75;

  /* Layout */
  --header-height: 68px;
  --content-max: 1400px;
  --reading-max: 78ch;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 1px 2px rgba(74, 90, 38, 0.08);
  --shadow-md: 0 6px 18px rgba(74, 90, 38, 0.10);
  --shadow-lg: 0 18px 40px rgba(74, 90, 38, 0.14);

  --t-fast: 140ms cubic-bezier(.2,.7,.3,1);
  --t-med: 240ms cubic-bezier(.2,.7,.3,1);
}

/* ----- reset --------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 16px);
  -webkit-text-size-adjust: 100%;
}
body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--leading-normal);
  color: var(--color-ink);
  background:
    radial-gradient(1200px 600px at 90% -20%, rgba(224, 183, 90, 0.18), transparent 60%),
    radial-gradient(1000px 500px at -10% 110%, rgba(139, 177, 95, 0.16), transparent 55%),
    var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { max-width: 100%; height: auto; display: block; }
svg { max-width: 100%; display: inline-block; vertical-align: middle; }
button { font-family: inherit; cursor: pointer; }

/* ----- links --------------------------------------------------------------- */
a {
  color: var(--color-link);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}
a:hover, a:focus-visible {
  color: var(--color-link-hover);
  border-bottom-color: currentColor;
}
a:focus-visible {
  outline: 2px solid var(--color-gold-bright);
  outline-offset: 3px;
  border-radius: 3px;
}

/* ----- layout primitives --------------------------------------------------- */
.shell {
  width: 100%;
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 clamp(16px, 3vw, 40px);
}
main {
  flex: 1 0 auto;
  width: 100%;
}
main.shell {
  /* Override .shell horizontal-only padding with full padding for <main>.
     A compound selector beats .shell's specificity. */
  padding-top: clamp(28px, 3vw, 56px);
  padding-bottom: clamp(48px, 5vw, 96px);
}

/* ==========================================================================
   Header
   ========================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 246, 236, 0.85);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 24px;
}
.site-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-ink);
  border-bottom: 0;
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}
.site-brand:hover { color: var(--color-olive-deep); }
.site-brand .brand-logo { width: 38px; height: 38px; }
.site-brand .brand-name { line-height: 1.1; }
.site-brand .brand-sub { display: block; font-size: 0.7rem; font-weight: 500; color: var(--color-ink-muted); letter-spacing: 0.04em; text-transform: uppercase; }

.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  color: var(--color-ink-soft);
  font-size: 0.94rem;
  font-weight: 500;
  border: 1px solid transparent;
  background: transparent;
}
.site-nav a:hover, .site-nav a:focus-visible {
  color: var(--color-olive-deep);
  background: var(--color-bg-soft);
  border-color: var(--color-border);
  border-bottom-color: var(--color-border);
}
.site-nav a.is-current {
  color: var(--color-olive-deep);
  background: linear-gradient(135deg, var(--color-bg-soft), var(--color-bg-alt));
  border-color: var(--color-wheat);
}
.site-nav a .nav-icon { width: 18px; height: 18px; flex: 0 0 18px; }
.nav-toggle .nav-icon { width: 20px; height: 20px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  color: var(--color-ink);
  align-items: center; justify-content: center;
  transition: background var(--t-fast), border-color var(--t-fast);
}
.nav-toggle:hover { background: var(--color-bg-soft); }

@media (max-width: 860px) {
  .site-brand .brand-sub { display: none; }
  .nav-toggle { display: inline-flex; }
  .site-nav {
    position: absolute;
    top: var(--header-height);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 4px;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--t-fast), transform var(--t-fast);
  }
  .site-nav.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .site-nav a { width: 100%; padding: 12px 14px; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, transparent 0%, var(--color-bg-alt) 100%);
  border-top: 1px solid var(--color-border);
  padding: clamp(56px, 7vw, 88px) 0 32px;
  color: var(--color-ink-soft);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: clamp(20px, 3vw, 40px);
}
.footer-brand .brand-logo { width: 52px; height: 52px; margin-bottom: 12px; }
.footer-brand h2 { margin: 0 0 6px; font-size: 1.1rem; color: var(--color-ink); }
.footer-brand p { margin: 0; font-size: 0.92rem; max-width: 32ch; }
.footer-col h3 {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-olive-deep);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-col a { font-size: 0.94rem; color: var(--color-ink-soft); }
.footer-col a:hover { color: var(--color-olive-deep); }
.footer-meta {
  margin-top: 32px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  font-size: 0.82rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  color: var(--color-ink-muted);
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: clamp(48px, 7vw, 104px) 0 clamp(48px, 6vw, 88px);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(720px 360px at 80% 20%, rgba(201, 162, 74, 0.18), transparent 60%),
    radial-gradient(560px 280px at 10% 90%, rgba(139, 177, 95, 0.18), transparent 60%);
  z-index: -1;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(28px, 5vw, 56px);
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  color: var(--color-olive-deep);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.hero-eyebrow svg { width: 14px; height: 14px; color: var(--color-olive-deep); }
.related-grid a svg { width: 14px; height: 14px; }
.faq-item summary svg { width: 18px; height: 18px; }
.codeblock-copy svg { width: 12px; height: 12px; }
.hero h1 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-ink);
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--color-olive-deep), var(--color-gold));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  font-size: clamp(1rem, 1.25vw, 1.12rem);
  color: var(--color-ink-soft);
  max-width: 60ch;
  margin: 0 0 14px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}
.hero-art {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  filter: drop-shadow(0 24px 36px rgba(74, 90, 38, 0.18));
}
.hero-art svg { width: min(100%, 420px); }
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art svg { width: min(72%, 320px); }
}

/* ----- CTA buttons --------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.98rem;
  letter-spacing: 0.005em;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--t-fast), box-shadow var(--t-fast), background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.btn .btn-icon {
  width: 26px; height: 26px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 6px;
  flex: 0 0 26px;
}
.btn .btn-icon svg { width: 14px; height: 14px; color: #fff; }
.btn-secondary .btn-icon svg, .btn-ghost .btn-icon svg { color: #fff; }
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-bottom-color: transparent; }
.btn-primary { background: var(--color-olive-deep); color: #fff; border-color: var(--color-olive-deep); }
.btn-primary:hover { background: var(--color-olive); color: #fff; }
.btn-secondary { background: var(--color-gold); color: #2d2410; border-color: var(--color-gold); }
.btn-secondary:hover { background: var(--color-gold-bright); color: #2d2410; }
.btn-ghost { background: var(--color-bg-card); color: var(--color-ink); border-color: var(--color-border); }
.btn-ghost:hover { background: var(--color-bg-soft); color: var(--color-olive-deep); }

/* ==========================================================================
   Section cards (homepage)
   ========================================================================== */
.section-block { padding: clamp(48px, 6vw, 88px) 0; }
.section-head {
  margin: 0 0 40px;
  max-width: 78ch;
}
.section-head h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.1rem);
  margin: 0 0 10px;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}
.section-head h2 .accent {
  background: linear-gradient(135deg, var(--color-olive), var(--color-amber));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-head p { margin: 0; color: var(--color-ink-soft); font-size: 1.05rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.card-grid.is-wide { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 32px 28px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--color-border);
  transition: transform var(--t-fast), box-shadow var(--t-fast), border-color var(--t-fast);
  position: relative;
  overflow: hidden;
}
.feature-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 50%, rgba(201, 162, 74, 0.08));
  opacity: 0;
  transition: opacity var(--t-med);
  pointer-events: none;
}
.feature-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--color-wheat); border-bottom-color: var(--color-wheat); }
.feature-card:hover::after { opacity: 1; }
.feature-card h3 {
  margin: 0;
  font-size: 1.18rem;
  color: var(--color-ink);
}
.feature-card p { margin: 0; color: var(--color-ink-soft); font-size: 0.96rem; }
.feature-card .feature-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff;
}
.feature-card .feature-icon svg { width: 22px; height: 22px; color: #fff; }
.feature-card .feature-cta svg { width: 14px; height: 14px; }
.feature-card .feature-cta {
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-olive-deep);
  font-weight: 600;
  font-size: 0.92rem;
}
.feature-card:hover .feature-cta { color: var(--color-gold); }

.icon-olive { background: linear-gradient(135deg, var(--color-olive-deep), var(--color-olive-bright)); }
.icon-gold { background: linear-gradient(135deg, var(--color-amber), var(--color-gold-bright)); }
.icon-meadow { background: linear-gradient(135deg, var(--color-meadow), var(--color-olive-bright)); }
.icon-rust { background: linear-gradient(135deg, var(--color-rust), var(--color-amber)); }
.icon-sky { background: linear-gradient(135deg, var(--color-sky), var(--color-olive)); }
.icon-wheat { background: linear-gradient(135deg, var(--color-wheat), var(--color-gold)); color: #2d2410; }

/* ==========================================================================
   Content pages
   ========================================================================== */
.content-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 280px;
  gap: clamp(28px, 4vw, 56px);
  align-items: start;
}
@media (max-width: 1080px) {
  .content-layout { grid-template-columns: minmax(0, 1fr); }
  .content-sidebar { order: 2; }
}

.breadcrumbs {
  margin: 0 0 28px;
  font-size: 0.86rem;
  color: var(--color-ink-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.breadcrumbs a {
  color: var(--color-ink-soft);
  border-bottom-color: transparent;
}
.breadcrumbs a:hover { color: var(--color-olive-deep); border-bottom-color: currentColor; }
.breadcrumbs .sep { color: var(--color-border); }
.breadcrumbs .current { color: var(--color-ink); font-weight: 500; }

.page-title {
  font-size: clamp(1.9rem, 3.6vw, 2.8rem);
  line-height: 1.2;
  margin: 0 0 18px;
  letter-spacing: -0.015em;
  background: linear-gradient(135deg, var(--color-olive-deep) 10%, var(--color-amber) 80%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.page-lede {
  font-size: 1.12rem;
  color: var(--color-ink-soft);
  margin: 0 0 44px;
  max-width: 80ch;
  line-height: var(--leading-normal);
}

.prose {
  color: var(--color-ink);
  line-height: var(--leading-normal);
}
.prose > * + * { margin-top: 1.5em; }
.prose p { margin: 0 0 1.35em; max-width: 84ch; }
.prose h2, .prose h3, .prose h4 {
  color: var(--color-ink);
  line-height: 1.35;
  letter-spacing: -0.005em;
  margin: 2.8em 0 0.85em;
  position: relative;
}
.prose h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.85rem);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.prose h2 .header-anchor,
.prose h3 .header-anchor,
.prose h4 .header-anchor {
  color: inherit;
  border-bottom: 0;
}
.prose h3 { font-size: clamp(1.18rem, 1.6vw, 1.4rem); color: var(--color-olive-deep); }
.prose h4 { font-size: 1.08rem; color: var(--color-olive); }

.prose strong { color: var(--color-ink); }
.prose a {
  color: var(--color-link);
  font-weight: 500;
  border-bottom: 1px solid rgba(90, 110, 42, 0.25);
}
.prose a:hover { color: var(--color-amber); border-bottom-color: var(--color-amber); }

.prose ul, .prose ol {
  padding-left: 1.4em;
  max-width: 84ch;
}
.prose li + li { margin-top: 0.55em; }
.prose li { line-height: var(--leading-normal); }

.prose blockquote {
  margin: 1.8em 0;
  padding: 18px 22px;
  border-left: 4px solid var(--color-gold);
  background: var(--color-bg-soft);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-ink-soft);
}

/* ----- inline code -------------------------------------------------------- */
.prose :not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: var(--color-bg-codeline);
  color: var(--color-olive-deep);
  padding: 0.12em 0.42em;
  border-radius: 4px;
  border: 0;
}

/* ----- code blocks -------------------------------------------------------- */
.codeblock {
  margin: 1.8em 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-bg-codeblock);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  max-width: 100%;
}
.codeblock-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  background: linear-gradient(180deg, var(--color-bg-alt), var(--color-bg-soft));
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-ink-muted);
}
.codeblock-lang { font-weight: 600; color: var(--color-olive-deep); }
.codeblock-copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  color: var(--color-ink-soft);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  transition: background var(--t-fast), color var(--t-fast), border-color var(--t-fast);
}
.codeblock-copy:hover { background: var(--color-gold); color: #2d2410; border-color: var(--color-gold); }
.codeblock-copy.is-copied { background: var(--color-meadow); color: #fff; border-color: var(--color-meadow); }
.codeblock pre {
  margin: 0;
  padding: 22px 24px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.7;
  background: transparent;
  color: var(--color-ink);
}
.codeblock pre code {
  background: transparent;
  color: inherit;
  font-size: inherit;
}

/* Prism token colors tuned to Golden Summer Fields */
.codeblock .token.comment,
.codeblock .token.prolog,
.codeblock .token.cdata { color: #8a8662; font-style: italic; }
.codeblock .token.punctuation { color: #6a755a; }
.codeblock .token.keyword,
.codeblock .token.tag,
.codeblock .token.boolean,
.codeblock .token.atrule,
.codeblock .token.rule { color: #6b7a3a; font-weight: 600; }
.codeblock .token.string,
.codeblock .token.url,
.codeblock .token.attr-value { color: #8a6e2a; }
.codeblock .token.number,
.codeblock .token.constant { color: #b6552d; }
.codeblock .token.function,
.codeblock .token.class-name { color: #4a5a26; font-weight: 600; }
.codeblock .token.builtin,
.codeblock .token.symbol { color: #6b8aa5; }
.codeblock .token.operator { color: #6a755a; }
.codeblock .token.variable { color: #4d5a3f; }
.codeblock .token.decorator { color: #c9a24a; }
.codeblock .token.regex { color: #b6552d; }

/* ----- tables ------------------------------------------------------------- */
.table-scroll {
  overflow-x: auto;
  margin: 1.8em 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}
.table-scroll table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
}
.table-scroll th, .table-scroll td {
  padding: 14px 18px;
  line-height: 1.55;
  text-align: left;
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 0.94rem;
}
.table-scroll th {
  background: var(--color-bg-soft);
  color: var(--color-olive-deep);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.table-scroll tr:last-child td { border-bottom: 0; }
.table-scroll tbody tr:hover { background: var(--color-bg-alt); }

/* ----- checkbox lists ----------------------------------------------------- */
.prose .task-list-item,
.prose .contains-task-list .task-list-item {
  list-style: none;
  margin-left: -1.4em;
  padding-left: 0;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.prose .contains-task-list {
  padding-left: 0;
  list-style: none;
}
.prose .task-list-item-checkbox,
.prose input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 4px;
  accent-color: var(--color-olive-deep);
  cursor: pointer;
  flex: 0 0 18px;
}
.prose .task-list-item.is-checked,
.prose .task-list-item:has(input:checked) {
  color: var(--color-ink-muted);
  text-decoration: line-through;
}

/* ----- FAQ accordion ------------------------------------------------------ */
.faq-accordion {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 16px 0 24px;
}
.faq-item {
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow var(--t-fast), border-color var(--t-fast);
}
.faq-item[open] { box-shadow: var(--shadow-md); border-color: var(--color-wheat); }
.faq-item summary {
  cursor: pointer;
  padding: 14px 18px;
  font-weight: 600;
  color: var(--color-ink);
  list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-size: 1.4rem;
  color: var(--color-gold);
  transition: transform var(--t-fast);
  line-height: 1;
}
.faq-item[open] summary::after { content: "−"; transform: rotate(0deg); }
.faq-body { padding: 4px 18px 16px; color: var(--color-ink-soft); }
.faq-body > *:first-child { margin-top: 0; }
.faq-body > *:last-child { margin-bottom: 0; }

/* ----- mermaid ------------------------------------------------------------ */
pre.mermaid {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
  overflow-x: auto;
  margin: 1.4em 0;
}

/* ----- KaTeX -------------------------------------------------------------- */
.katex { font-size: 1.02em; color: var(--color-ink); }
.katex-display { overflow-x: auto; overflow-y: hidden; padding: 6px 0; }

/* ==========================================================================
   Content sidebar (TOC / related)
   ========================================================================== */
.content-sidebar {
  position: sticky;
  top: calc(var(--header-height) + 20px);
  align-self: start;
  font-size: 0.9rem;
}
.content-sidebar .sidebar-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 18px 18px 16px;
  margin-bottom: 16px;
}
.content-sidebar h4 {
  margin: 0 0 10px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-olive-deep);
}
.content-sidebar ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.content-sidebar a { display: block; padding: 4px 6px; border-radius: 4px; border-bottom: 0; color: var(--color-ink-soft); }
.content-sidebar a:hover { background: var(--color-bg-soft); color: var(--color-olive-deep); }

/* ==========================================================================
   Page bottom navigation (next/related)
   ========================================================================== */
.page-relations {
  margin-top: 80px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}
.page-relations h2 {
  font-size: 1.1rem;
  margin: 0 0 24px;
  color: var(--color-olive-deep);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.related-grid a {
  padding: 14px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  color: var(--color-ink);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-bottom: 1px solid var(--color-border);
}
.related-grid a:hover {
  background: var(--color-bg-soft);
  border-color: var(--color-wheat);
  color: var(--color-olive-deep);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.related-grid a::after {
  content: "→";
  color: var(--color-gold);
  transition: transform var(--t-fast);
}
.related-grid a:hover::after { transform: translateX(3px); }

/* ==========================================================================
   Misc
   ========================================================================== */
.eyebrow-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-olive-deep);
  background: var(--color-bg-soft);
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  margin-bottom: 14px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0ms !important;
    animation-duration: 0ms !important;
    scroll-behavior: auto !important;
  }
}