/* =========================================================================
   Expense Audit Automation Guide — main stylesheet
   Light, professional theme inspired by finance/audit.
   ========================================================================= */

:root {
  /* Brand palette */
  --c-bg:           #fafaf9;
  --c-surface:      #ffffff;
  --c-surface-2:    #f5f5f4;
  --c-surface-3:    #eef2f4;
  --c-text:         #1c1917;
  --c-text-soft:    #44403c;
  --c-muted:        #6b6660;
  --c-border:       #e7e5e4;
  --c-border-soft:  #efece9;

  --c-teal:         #0a6b74;
  --c-teal-bright:  #14b8a6;
  --c-teal-soft:    #ccfbf1;

  --c-indigo:       #4338ca;
  --c-indigo-soft:  #e0e7ff;

  --c-emerald:      #047857;
  --c-emerald-soft: #d1fae5;

  --c-amber:        #b45309;
  --c-amber-soft:   #fef3c7;

  --c-rose:         #be123c;
  --c-rose-soft:    #ffe4e6;

  --c-link:         #0a6b74;
  --c-link-hover:   #0e8d99;

  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto,
               "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco,
               Consolas, "Liberation Mono", "Courier New", monospace;

  /* Layout */
  --header-h: 68px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(28, 25, 23, .06);
  --shadow-md: 0 6px 18px -8px rgba(28, 25, 23, .15);
  --shadow-lg: 0 24px 48px -16px rgba(10, 107, 116, .28);

  --container: min(1480px, 92vw);
  --container-narrow: min(1180px, 92vw);
  --container-prose: min(1100px, 92vw);
}

@media (min-width: 1600px) {
  :root { --container: min(1600px, 90vw); }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--c-text);
  background:
    radial-gradient(1200px 480px at 90% -10%, rgba(20, 184, 166, .12), transparent 70%),
    radial-gradient(900px 480px at -10% 0%, rgba(67, 56, 202, .10), transparent 70%),
    var(--c-bg);
  line-height: 1.6;
  font-size: 17px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

main.site-main {
  flex: 1 0 auto;
  width: 100%;
  outline: none;
  padding-top: 24px;
  padding-bottom: 64px;
}

img, svg { max-width: 100%; height: auto; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--c-teal);
  color: #fff;
  padding: 12px 18px;
  border-radius: 0 0 var(--radius-sm) 0;
  z-index: 1000;
}
.skip-link:focus { left: 0; }

/* =========================================================================
   Header
   ========================================================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  width: var(--container);
  margin: 0 auto;
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: inherit;
  text-decoration: none;
  border-radius: var(--radius-sm);
  padding: 6px 8px;
  margin-left: -8px;
  transition: background .15s ease, transform .15s ease;
}
.brand:hover { background: var(--c-surface-2); transform: translateY(-1px); }
.brand:focus-visible { outline: 2px solid var(--c-teal-bright); outline-offset: 2px; }

.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__title {
  font-weight: 700;
  font-size: 1.02rem;
  letter-spacing: -.01em;
  background: linear-gradient(90deg, var(--c-teal), var(--c-indigo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand__sub {
  font-size: .72rem;
  color: var(--c-muted);
  font-weight: 500;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.primary-nav {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 4px;
}

.primary-nav__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--c-text-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  transition: background .18s ease, color .18s ease, transform .18s ease;
  position: relative;
}
.primary-nav__link .primary-nav__icon {
  display: inline-flex;
  width: 22px;
  height: 22px;
  color: var(--c-teal);
}
.primary-nav__link:hover {
  background: var(--c-surface-2);
  color: var(--c-text);
  transform: translateY(-1px);
}
.primary-nav__link.is-current {
  background: linear-gradient(180deg, var(--c-surface) 0%, var(--c-surface-2) 100%);
  color: var(--c-text);
  box-shadow: inset 0 0 0 1px var(--c-border);
}
.primary-nav__link.is-current::after {
  content: "";
  position: absolute;
  left: 14px; right: 14px; bottom: 4px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--c-teal-bright), var(--c-indigo));
}
.primary-nav__link--teal .primary-nav__icon    { color: var(--c-teal); }
.primary-nav__link--indigo .primary-nav__icon  { color: var(--c-indigo); }
.primary-nav__link--emerald .primary-nav__icon { color: var(--c-emerald); }

.nav-toggle {
  display: none;
  margin-left: auto;
  width: 44px; height: 44px;
  border: 1px solid var(--c-border);
  background: var(--c-surface);
  border-radius: var(--radius-md);
  cursor: pointer;
  align-items: center; justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: background .15s ease;
}
.nav-toggle:hover { background: var(--c-surface-2); }
.nav-toggle__bar {
  display: block; width: 18px; height: 2px;
  background: var(--c-text-soft);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}
.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; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 880px) {
  .nav-toggle { display: inline-flex; }
  .primary-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px var(--container-mobile, 5vw);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .18s ease, transform .18s ease;
    box-shadow: var(--shadow-md);
  }
  .primary-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }
  .primary-nav__link {
    padding: 12px 14px;
    border-radius: var(--radius-md);
  }
  .primary-nav__link.is-current::after { display: none; }
}

/* =========================================================================
   Footer
   ========================================================================= */
.site-footer {
  margin-top: auto;
  background: linear-gradient(180deg, var(--c-surface) 0%, var(--c-surface-2) 100%);
  border-top: 1px solid var(--c-border);
  padding: 40px 0 24px;
}
.site-footer__inner {
  width: var(--container);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}
.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}
.site-footer__title { margin: 0; font-weight: 700; font-size: 1rem; color: var(--c-text); }
.site-footer__tagline { margin: 4px 0 0; color: var(--c-muted); font-size: .92rem; max-width: 60ch; }
.site-footer__heading { font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; color: var(--c-muted); margin: 0 0 10px; }
.site-footer__nav ul { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 10px 20px; }
.site-footer__nav a {
  color: var(--c-text-soft);
  text-decoration: none;
  font-weight: 600;
  font-size: .95rem;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background .15s ease, color .15s ease;
}
.site-footer__nav a:hover { background: var(--c-surface-3); color: var(--c-link-hover); }
.site-footer__meta {
  width: var(--container);
  margin: 28px auto 0;
  padding-top: 18px;
  border-top: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: .85rem;
}
@media (max-width: 760px) {
  .site-footer__inner { grid-template-columns: 1fr; }
}

/* =========================================================================
   Hero
   ========================================================================= */
.hero {
  width: var(--container);
  margin: 24px auto 40px;
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: center;
  background:
    radial-gradient(420px 220px at 100% 0%, rgba(20, 184, 166, .18), transparent 70%),
    radial-gradient(420px 220px at 0% 100%, rgba(67, 56, 202, .14), transparent 70%),
    linear-gradient(180deg, var(--c-surface) 0%, #fafafa 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 48px 56px;
  box-shadow: var(--shadow-md);
}
.hero__brand { display: flex; justify-content: center; }
.logo--hero { filter: drop-shadow(0 10px 24px rgba(10, 107, 116, .25)); }

.hero__copy { max-width: 56ch; }
.hero__eyebrow {
  display: inline-block;
  margin: 0 0 12px;
  padding: 4px 12px;
  background: var(--c-teal-soft);
  color: var(--c-teal);
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.hero__title {
  font-size: clamp(2.2rem, 3.6vw + 1rem, 3.8rem);
  line-height: 1.05;
  letter-spacing: -.02em;
  margin: 6px 0 16px;
  font-weight: 800;
}
.hero__title .grad {
  display: inline-block;
  background-clip: text;
  -webkit-background-clip: text;
  color: transparent;
  padding-right: .15em;
}
.grad-1 { background-image: linear-gradient(90deg, #0a6b74, #14b8a6); }
.grad-2 { background-image: linear-gradient(90deg, #4338ca, #818cf8); }
.grad-3 { background-image: linear-gradient(90deg, #d97706, #f59e0b); }

.hero__tagline {
  font-size: 1.12rem;
  color: var(--c-text-soft);
  margin: 0 0 28px;
  max-width: 60ch;
}

.hero__ctas {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}
.cta {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease;
}
.cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.cta__icon {
  width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #fafafa, #f0f1f4);
  box-shadow: inset 0 0 0 1px var(--c-border-soft);
}
.cta--teal:hover    { background: linear-gradient(180deg, #fff, #ecfeff); }
.cta--indigo:hover  { background: linear-gradient(180deg, #fff, #eef2ff); }
.cta--emerald:hover { background: linear-gradient(180deg, #fff, #ecfdf5); }
.cta__title { font-weight: 700; font-size: 1rem; }
.cta__sub   { display: block; color: var(--c-muted); font-size: .85rem; }
.cta__arrow {
  font-size: 1.4rem; color: var(--c-muted);
  transition: transform .15s ease, color .15s ease;
}
.cta:hover .cta__arrow { transform: translateX(3px); color: var(--c-teal); }

@media (max-width: 900px) {
  .hero__inner { grid-template-columns: 1fr; padding: 32px 24px; gap: 24px; }
  .hero__copy  { max-width: none; }
  .logo--hero  { width: 160px; height: 160px; }
}

/* =========================================================================
   Intro paragraphs
   ========================================================================= */
.intro {
  width: var(--container);
  margin: 0 auto 56px;
}
.intro__inner {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  box-shadow: var(--shadow-sm);
}
.intro__inner h2 {
  margin: 0 0 18px;
  font-size: 1.6rem;
  letter-spacing: -.01em;
  color: var(--c-teal);
}
.intro__inner p {
  font-size: 1.04rem;
  color: var(--c-text-soft);
  margin: 0 0 14px;
  max-width: 90ch;
}
.intro__inner a { color: var(--c-link); font-weight: 600; }
.intro__inner a:hover { color: var(--c-link-hover); }

@media (max-width: 720px) {
  .intro__inner { padding: 24px 20px; }
}

/* =========================================================================
   Section cards (home)
   ========================================================================= */
.sections {
  width: var(--container);
  margin: 0 auto 80px;
}
.sections__title {
  margin: 0 0 24px;
  font-size: 1.6rem;
  letter-spacing: -.01em;
}
.sections__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}
.section-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 26px 24px;
  text-decoration: none;
  color: var(--c-text);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: transform .18s ease, box-shadow .25s ease, border-color .25s ease;
}
.section-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 4px;
}
.section-card--teal::before    { background: linear-gradient(90deg, #14b8a6, #0a6b74); }
.section-card--indigo::before  { background: linear-gradient(90deg, #818cf8, #4338ca); }
.section-card--emerald::before { background: linear-gradient(90deg, #34d399, #047857); }
.section-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.section-card__icon { width: 48px; height: 48px; display: inline-flex; align-items: center; justify-content: center; }
.section-card__title { margin: 0; font-size: 1.18rem; letter-spacing: -.01em; }
.section-card__tagline { margin: 0; color: var(--c-text-soft); font-size: .98rem; }
.section-card__cta {
  margin-top: auto;
  font-weight: 700;
  font-size: .95rem;
  color: var(--c-teal);
  transition: color .15s ease, transform .15s ease;
}
.section-card--indigo .section-card__cta  { color: var(--c-indigo); }
.section-card--emerald .section-card__cta { color: var(--c-emerald); }
.section-card:hover .section-card__cta { transform: translateX(3px); }

/* =========================================================================
   Doc layout (content pages)
   ========================================================================= */
.doc {
  width: var(--container);
  margin: 0 auto;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px clamp(20px, 4vw, 56px) 48px;
  box-shadow: var(--shadow-sm);
}
.doc-body { max-width: none; }

/* Breadcrumbs */
.breadcrumbs ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 6px 4px;
  padding: 0;
  margin: 0 0 24px;
  font-size: .92rem;
  color: var(--c-muted);
}
.breadcrumbs li + li::before {
  content: "›";
  margin: 0 8px 0 4px;
  color: var(--c-border);
}
.breadcrumbs a {
  color: var(--c-muted);
  text-decoration: none;
  font-weight: 600;
  padding: 3px 6px;
  border-radius: 6px;
  transition: color .15s ease, background .15s ease;
}
.breadcrumbs a:hover { color: var(--c-link); background: var(--c-surface-2); }
.breadcrumbs [aria-current="page"] { color: var(--c-text); font-weight: 700; }

/* Headings */
.doc-body h1 {
  font-size: clamp(2rem, 1.4rem + 1.8vw, 2.9rem);
  line-height: 1.15;
  letter-spacing: -.02em;
  margin: 4px 0 22px;
  font-weight: 800;
  background: linear-gradient(90deg, #0a6b74 0%, #14b8a6 38%, #4338ca 75%, #be123c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.doc-body h2,
.doc-body h3,
.doc-body h4 {
  letter-spacing: -.01em;
  color: var(--c-text);
  scroll-margin-top: calc(var(--header-h) + 18px);
}
.doc-body h2 {
  font-size: clamp(1.4rem, 1.05rem + .8vw, 1.85rem);
  margin: 40px 0 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--c-border);
  position: relative;
}
.doc-body h2::before {
  content: "";
  position: absolute;
  left: -14px;
  top: 0.3em;
  width: 6px;
  height: 1em;
  border-radius: 6px;
  background: linear-gradient(180deg, var(--c-teal-bright), var(--c-indigo));
}
@media (max-width: 720px) { .doc-body h2::before { left: -10px; } }
.doc-body h3 { font-size: 1.25rem; margin: 28px 0 10px; color: var(--c-teal); }
.doc-body h4 { font-size: 1.08rem; margin: 22px 0 8px; color: var(--c-indigo); }
.doc-body h5, .doc-body h6 { font-size: 1rem; margin: 18px 0 6px; color: var(--c-text-soft); }

.doc-body p {
  margin: 0 0 18px;
  color: var(--c-text-soft);
  font-size: 1.02rem;
  line-height: 1.72;
}
.doc-body strong { color: var(--c-text); }

/* Links */
.doc-body a {
  color: var(--c-link);
  text-decoration: none;
  background-image: linear-gradient(90deg, currentColor, currentColor);
  background-repeat: no-repeat;
  background-size: 100% 1px;
  background-position: 0 100%;
  transition: color .15s ease, background-size .2s ease;
}
.doc-body a:hover {
  color: var(--c-link-hover);
  background-size: 100% 2px;
}
.doc-body a.external-link::after {
  content: "↗";
  margin-left: 2px;
  font-size: .85em;
  color: var(--c-muted);
}

/* Lists */
.doc-body ul, .doc-body ol {
  padding-left: 1.4em;
  margin: 0 0 18px;
  color: var(--c-text-soft);
}
.doc-body li { margin: 4px 0; line-height: 1.65; }
.doc-body li > p { margin: 0 0 6px; }

/* Header-anchor link (markdown-it-anchor headerLink style) */
.header-anchor {
  color: inherit;
  text-decoration: none;
  background-image: none;
}
.header-anchor:hover { color: inherit; }

/* Inline code: blends, no border, light tint */
.doc-body :not(pre) > code {
  font-family: var(--font-mono);
  font-size: .92em;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--c-surface-3);
  color: var(--c-text);
  border: 0;
}

/* =========================================================================
   Code blocks (with copy button)
   ========================================================================= */
.code-block {
  position: relative;
  margin: 18px 0 22px;
  border-radius: var(--radius-md);
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--c-border);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.6);
  overflow: hidden;
}
.code-block__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px 6px 14px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  font-size: .78rem;
  color: var(--c-muted);
}
.code-block__lang {
  font-family: var(--font-mono);
  text-transform: lowercase;
  letter-spacing: .04em;
  color: var(--c-teal);
  font-weight: 700;
}
.code-block__copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  color: var(--c-text-soft);
  font: inherit;
  font-size: .78rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.code-block__copy:hover { background: var(--c-teal-soft); color: var(--c-teal); }
.code-block__copy:active { transform: scale(.97); }
.code-block__copy.is-copied { background: var(--c-emerald-soft); color: var(--c-emerald); }

.code-block pre {
  margin: 0;
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .9rem;
  line-height: 1.6;
  color: #1c1917;
  background: transparent;
}
.code-block pre code {
  background: transparent !important;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  color: inherit;
  display: block;
  min-width: 100%;
}

/* PrismJS — light syntax colours that match the palette */
.token.comment, .token.prolog, .token.doctype, .token.cdata { color: #94a3b8; font-style: italic; }
.token.punctuation { color: #475569; }
.token.namespace { opacity: .8; }
.token.property, .token.tag, .token.boolean, .token.number, .token.constant, .token.symbol, .token.deleted { color: #be123c; }
.token.selector, .token.attr-name, .token.string, .token.char, .token.builtin, .token.inserted { color: #047857; }
.token.operator, .token.entity, .token.url,
.language-css .token.string, .style .token.string { color: #b45309; }
.token.atrule, .token.attr-value, .token.keyword { color: #4338ca; font-weight: 600; }
.token.function, .token.class-name { color: #0a6b74; font-weight: 600; }
.token.regex, .token.important, .token.variable { color: #d97706; }
.token.important, .token.bold { font-weight: 700; }
.token.italic { font-style: italic; }

/* Fallback when prismjs hasn't tokenised (e.g. raw <pre><code>) */
.doc-body > pre {
  margin: 18px 0;
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: .9rem;
}

/* =========================================================================
   Tables (responsive)
   ========================================================================= */
.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 18px 0 24px;
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  background: var(--c-surface);
  box-shadow: var(--shadow-sm);
}
.table-wrap table {
  width: 100%;
  border-collapse: collapse;
  font-size: .94rem;
  min-width: 520px;
}
.table-wrap thead {
  background: linear-gradient(180deg, var(--c-surface) 0%, var(--c-surface-2) 100%);
}
.table-wrap th {
  text-align: left;
  font-weight: 700;
  font-size: .82rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--c-teal);
  padding: 12px 14px;
  border-bottom: 1px solid var(--c-border);
}
.table-wrap td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--c-border-soft);
  color: var(--c-text-soft);
  vertical-align: top;
}
.table-wrap tr:last-child td { border-bottom: 0; }
.table-wrap tbody tr:hover { background: var(--c-surface-2); }

/* =========================================================================
   Blockquotes
   ========================================================================= */
.doc-body blockquote {
  margin: 18px 0;
  padding: 14px 18px;
  background: var(--c-teal-soft);
  border-left: 4px solid var(--c-teal-bright);
  border-radius: var(--radius-sm);
  color: var(--c-text);
}
.doc-body blockquote p:last-child { margin-bottom: 0; }

/* =========================================================================
   Task lists — togglable checkboxes
   markdown-it-task-lists renders: <li class="task-list-item"><label><input> text</label></li>
   ========================================================================= */
.doc-body ul.contains-task-list,
.doc-body ol.contains-task-list { list-style: none; padding-left: 0; }

.doc-body .task-list-item {
  padding: 0;
  margin: 4px 0;
  border-radius: 10px;
  transition: background .15s ease;
}
.doc-body .task-list-item:hover { background: var(--c-surface-2); }
.doc-body .task-list-item::marker,
.doc-body .task-list-item::before { content: none !important; }

.doc-body .task-list-item > label {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 10px;
  align-items: start;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: inherit;
  color: var(--c-text-soft);
}

.doc-body .task-list-item input.task-list-item-checkbox {
  appearance: none;
  -webkit-appearance: none;
  width: 20px; height: 20px;
  margin: 2px 0 0;
  border: 2px solid var(--c-border);
  border-radius: 6px;
  background: var(--c-surface);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: border-color .15s ease, background .15s ease;
  flex-shrink: 0;
}
.doc-body .task-list-item input.task-list-item-checkbox:hover { border-color: var(--c-teal-bright); }
.doc-body .task-list-item input.task-list-item-checkbox:checked {
  background: var(--c-teal);
  border-color: var(--c-teal);
}
.doc-body .task-list-item input.task-list-item-checkbox:checked::after {
  content: "";
  width: 11px; height: 6px;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #fff;
  transform: translateY(-1px) rotate(-45deg);
}
/* Line-through when checked — drives off both `:has()` (modern) and JS-applied class. */
.doc-body .task-list-item:has(input:checked) > label,
.doc-body .task-list-item.is-checked > label {
  text-decoration: line-through;
  color: var(--c-muted);
}

/* =========================================================================
   FAQ accordions (built by JS from h2/h3 headings inside .faq sections)
   ========================================================================= */
.faq-list { margin: 18px 0; display: flex; flex-direction: column; gap: 8px; }
.faq-item {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.faq-item__btn {
  width: 100%;
  text-align: left;
  background: var(--c-surface);
  color: var(--c-text);
  font: inherit;
  font-weight: 700;
  font-size: 1rem;
  border: 0;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.faq-item__btn:hover { background: var(--c-teal-soft); color: var(--c-teal); }
.faq-item__chev {
  width: 16px; height: 16px;
  transition: transform .2s ease;
  color: var(--c-muted);
  flex-shrink: 0;
}
.faq-item[open] .faq-item__chev { transform: rotate(180deg); color: var(--c-teal); }
.faq-item__body {
  padding: 4px 18px 18px;
  color: var(--c-text-soft);
}

/* =========================================================================
   Mermaid + KaTeX
   ========================================================================= */
.mermaid-block {
  margin: 18px 0;
  padding: 20px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  text-align: center;
  overflow-x: auto;
}
.mermaid-block svg { max-width: 100%; height: auto; }

.katex-display {
  margin: 18px 0 !important;
  padding: 12px 16px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  overflow-x: auto;
}

/* =========================================================================
   Related / sibling links + back link
   ========================================================================= */
.related {
  margin: 40px 0 0;
  padding: 22px 24px;
  background: linear-gradient(180deg, var(--c-surface-2), var(--c-surface));
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
}
.related__title { margin: 0 0 12px; font-size: 1.05rem; color: var(--c-teal); }
.related__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.related__list a {
  display: inline-flex;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--c-surface);
  color: var(--c-text-soft);
  text-decoration: none;
  border: 1px solid var(--c-border);
  font-weight: 600;
  font-size: .9rem;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .15s ease;
}
.related__list a:hover {
  background: var(--c-teal);
  color: #fff;
  border-color: var(--c-teal);
  transform: translateY(-1px);
}

.doc-footer-nav { margin-top: 24px; }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  color: var(--c-text-soft);
  text-decoration: none;
  font-weight: 600;
  transition: background .15s ease, color .15s ease, transform .15s ease;
}
.back-link:hover { background: var(--c-teal-soft); color: var(--c-teal); transform: translateX(-2px); }

/* =========================================================================
   Misc helpers
   ========================================================================= */
::selection { background: rgba(20, 184, 166, .25); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}