/* ============================================================
   Salary to Hourly Calculator — Shared Stylesheet
   Order: variables → reset → base → layout → components → utilities → responsive → a11y
   Widget/calculator styles live in /css/calculators.css
   ============================================================ */

/* ===============================================================
   1. DESIGN SYSTEM VARIABLES
   =============================================================== */
:root {
  /* Brand / primary */
  --color-primary:        #059669;
  --color-primary-dark:   #047857;
  --color-primary-darker: #065F46;
  --color-primary-light:  #ECFDF5;
  --color-primary-mid:    #D1FAE5;
  --color-accent:         #10B981;

  /* Text */
  --color-text:   #0F172A;
  --color-text-2: #475569;
  --color-text-3: #94A3B8;

  /* Surface */
  --color-bg:      #FFFFFF;
  --color-surface: #F8FAFC;
  --color-border:  #E2E8F0;

  /* Feedback */
  --color-success: #059669;
  --color-warning: #D97706;
  --color-danger:  #DC2626;

  /* Typography */
  --font-display: 'DM Sans', system-ui, -apple-system, sans-serif;
  --font-body:    'DM Sans', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'Courier New', monospace;

  --fs-xs:  .75rem;
  --fs-sm:  .875rem;
  --fs-base: 1rem;
  --fs-md:  1.125rem;
  --fs-lg:  1.25rem;
  --fs-xl:  1.5rem;
  --fs-2xl: 1.875rem;
  --fs-3xl: 2.25rem;
  --fs-4xl: 3rem;

  --fw-normal: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  --lh-tight: 1.2;
  --lh-normal: 1.6;
  --ls-tight: -0.02em;

  /* Spacing scale (ONLY these) */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-6: 24px; --sp-8: 32px; --sp-12: 48px; --sp-16: 64px; --sp-24: 96px;

  /* Radius */
  --radius-sm: 8px; --radius: 14px; --radius-lg: 16px; --radius-pill: 999px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0,0,0,.06);
  --shadow:    0 1px 3px rgba(0,0,0,.06), 0 4px 16px rgba(0,0,0,.06);
  --shadow-lg: 0 8px 32px rgba(2,44,34,.12);

  /* Layout */
  --container: 1120px;
  --header-h: 64px;

  /* Motion */
  --transition: 150ms ease;
  --transition-slow: 250ms ease;
}

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture, svg, video { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-primary-dark); }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
table { border-collapse: collapse; width: 100%; }

/* ===============================================================
   3. BASE / TYPOGRAPHY
   =============================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-text);
}
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); }
p  { color: var(--color-text-2); }

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ===============================================================
   4. LAYOUT
   =============================================================== */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}
.container-narrow { max-width: 760px; }

.section { padding-block: var(--sp-16); }
.section-sm { padding-block: var(--sp-12); }

main { display: block; min-height: 60vh; }

.grid { display: grid; gap: var(--sp-6); }
.grid-auto { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===============================================================
   5. COMPONENTS
   =============================================================== */

/* --- 5.1 Skip link --- */
.skip-link {
  position: absolute; left: var(--sp-2); top: -60px;
  z-index: 1000; padding: var(--sp-2) var(--sp-4);
  background: var(--color-primary); color: #fff; border-radius: var(--radius-sm);
  transition: top var(--transition);
}
.skip-link:focus { top: var(--sp-2); color: #fff; }

/* --- 5.2 Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--sp-2);
  min-height: 44px; padding: var(--sp-3) var(--sp-6);
  font-weight: var(--fw-semibold); font-size: var(--fs-base);
  border-radius: var(--radius-sm); border: 1.5px solid transparent;
  cursor: pointer; transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  text-align: center;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-dark); color: #fff; }
.btn-secondary { background: var(--color-bg); color: var(--color-primary); border-color: var(--color-primary); }
.btn-secondary:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.btn-block { width: 100%; }
.btn-lg { min-height: 52px; padding: var(--sp-4) var(--sp-8); font-size: var(--fs-md); }

/* --- 5.3 Header + navigation --- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-6); min-height: var(--header-h);
}
.brand { display: inline-flex; align-items: center; gap: var(--sp-2); font-family: var(--font-display); font-weight: var(--fw-bold); font-size: var(--fs-md); color: var(--color-text); letter-spacing: var(--ls-tight); }
.brand:hover { color: var(--color-text); }
.brand-mark { width: 28px; height: 28px; border-radius: var(--radius-sm); background: var(--color-primary); color: #fff; display: grid; place-items: center; font-size: var(--fs-sm); }

.primary-nav > ul { display: flex; align-items: center; gap: var(--sp-2); }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 4px;
  padding: var(--sp-2) var(--sp-3); min-height: 44px;
  font-weight: var(--fw-medium); color: var(--color-text-2); border-radius: var(--radius-sm);
}
.nav-link:hover, .nav-item:hover .nav-link { color: var(--color-primary); background: var(--color-primary-light); }
.nav-link[aria-current="page"] { color: var(--color-primary); box-shadow: inset 0 -2px 0 var(--color-primary); }
.nav-caret { width: 14px; height: 14px; transition: transform var(--transition); }
.nav-item:hover .nav-caret, .nav-item:focus-within .nav-caret { transform: rotate(180deg); }

/* Dropdown */
.nav-dropdown {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 110;
  min-width: 240px; padding: var(--sp-2);
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
  max-height: 70vh; overflow-y: auto;
}
.nav-item:hover .nav-dropdown, .nav-item:focus-within .nav-dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-dropdown a { display: block; padding: var(--sp-2) var(--sp-3); border-radius: var(--radius-sm); color: var(--color-text-2); font-size: var(--fs-sm); }
.nav-dropdown a:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.nav-dropdown-cols { columns: 2; column-gap: var(--sp-2); }

/* Hamburger */
.nav-toggle { display: none; width: 44px; height: 44px; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: var(--color-text); }
.nav-toggle:hover { background: var(--color-surface); }
.nav-toggle svg { width: 24px; height: 24px; }

/* --- 5.4 Breadcrumb --- */
.breadcrumb { padding-block: var(--sp-4); font-size: var(--fs-sm); }
.breadcrumb ol { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); color: var(--color-text-3); }
.breadcrumb li { display: inline-flex; align-items: center; gap: var(--sp-2); }
.breadcrumb li:not(:last-child)::after { content: "/"; color: var(--color-text-3); }
.breadcrumb a { color: var(--color-text-2); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-text-3); }

/* --- 5.5 Hero --- */
.hero { padding-block: var(--sp-16) var(--sp-12); }
.hero-emerald {
  background: linear-gradient(135deg, var(--color-primary-darker) 0%, var(--color-primary-dark) 50%, var(--color-primary) 100%);
  color: #fff; border-radius: 0;
}
.hero-emerald h1, .hero-emerald p { color: #fff; }
.hero h1 { font-size: var(--fs-4xl); max-width: 20ch; }
.hero-sub { font-size: var(--fs-md); color: var(--color-text-2); margin-top: var(--sp-4); max-width: 60ch; }
.hero-emerald .hero-sub { color: rgba(255,255,255,.9); }
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-8); }
.hero-eyebrow { display: inline-block; font-size: var(--fs-sm); font-weight: var(--fw-semibold); text-transform: uppercase; letter-spacing: .06em; color: var(--color-primary); margin-bottom: var(--sp-3); }
.hero-emerald .hero-eyebrow { color: var(--color-primary-mid); }

/* --- 5.5b Calculator-first hero (homepage) — H1 above a centered tool --- */
.hero-section { padding-block: var(--sp-6) var(--sp-12); background: linear-gradient(180deg, var(--color-primary-light) 0%, var(--color-bg) 100%); }
.tool-hero { max-width: 720px; margin-inline: auto; text-align: center; }
.tool-hero h1 { font-size: var(--fs-4xl); margin-bottom: 0; }
.hero-calc { margin-top: var(--sp-6); min-width: 0; text-align: left; }
.tool-hero-links { margin-top: var(--sp-6); font-size: var(--fs-sm); color: var(--color-text-3); }

/* --- 5.6 Cards --- */
.card {
  background: var(--color-bg); border: 1px solid var(--color-border);
  border-radius: var(--radius); box-shadow: var(--shadow-sm);
  padding: var(--sp-6); transition: box-shadow var(--transition), transform var(--transition), border-color var(--transition);
}
a.card, .card-link { display: block; color: inherit; }
a.card:hover, .card-hover:hover { box-shadow: var(--shadow); transform: translateY(-2px); border-color: var(--color-primary-mid); color: inherit; }
.card h3 { font-size: var(--fs-lg); margin-bottom: var(--sp-2); }
.card p { font-size: var(--fs-sm); }
.card-icon { width: 44px; height: 44px; border-radius: var(--radius-sm); background: var(--color-primary-light); color: var(--color-primary); display: grid; place-items: center; margin-bottom: var(--sp-4); }
.card-meta { font-size: var(--fs-xs); color: var(--color-text-3); margin-top: var(--sp-3); }

/* --- 5.7 CTA section --- */
.cta {
  background: var(--color-primary-light); border: 1px solid var(--color-primary-mid);
  border-radius: var(--radius-lg); padding: var(--sp-12);
  text-align: center;
}
.cta h2 { font-size: var(--fs-2xl); margin-bottom: var(--sp-3); }
.cta p { max-width: 55ch; margin-inline: auto; }
.cta-actions { display: flex; flex-wrap: wrap; gap: var(--sp-3); justify-content: center; margin-top: var(--sp-6); }

/* --- 5.8 FAQ accordion --- */
.faq { display: grid; gap: var(--sp-3); }
.faq-item { border: 1px solid var(--color-border); border-radius: var(--radius); background: var(--color-bg); overflow: hidden; }
.faq-item summary {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-6); font-weight: var(--fw-semibold); cursor: pointer;
  list-style: none; min-height: 44px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: var(--fs-xl); color: var(--color-primary); transition: transform var(--transition); }
.faq-item[open] summary::after { content: "\2013"; }
.faq-item summary:hover { color: var(--color-primary); }
.faq-answer { padding: 0 var(--sp-6) var(--sp-4); color: var(--color-text-2); }

/* --- 5.9 Author / trust block (E-E-A-T) --- */
.author-box {
  display: flex; align-items: center; gap: var(--sp-4); flex-wrap: wrap;
  padding: var(--sp-4) var(--sp-6); background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: var(--radius);
  font-size: var(--fs-sm); color: var(--color-text-2);
}
.author-avatar { width: 48px; height: 48px; border-radius: var(--radius-pill); background: var(--color-primary); color: #fff; display: grid; place-items: center; font-weight: var(--fw-bold); flex-shrink: 0; }
.author-box strong { color: var(--color-text); }
.author-meta { display: flex; flex-direction: column; gap: 2px; }

/* --- 5.10 Search bar --- */
.search { position: relative; max-width: 520px; }
.search input[type="search"] {
  width: 100%; min-height: 48px; padding: var(--sp-3) var(--sp-4) var(--sp-3) var(--sp-12);
  background: var(--color-bg); border: 1.5px solid var(--color-border); border-radius: var(--radius-pill);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.search input[type="search"]:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-mid); }
.search-icon { position: absolute; left: var(--sp-4); top: 50%; transform: translateY(-50%); width: 20px; height: 20px; color: var(--color-text-3); pointer-events: none; }
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0; z-index: 90;
  background: var(--color-bg); border: 1px solid var(--color-border); border-radius: var(--radius);
  box-shadow: var(--shadow); max-height: 320px; overflow-y: auto; padding: var(--sp-2);
}
.search-results:empty, .search-results[hidden] { display: none; }
.search-results a { display: block; padding: var(--sp-2) var(--sp-3); border-radius: var(--radius-sm); color: var(--color-text-2); font-size: var(--fs-sm); }
.search-results a:hover, .search-results a.is-active { background: var(--color-primary-light); color: var(--color-primary-dark); }

/* --- 5.11 Prose / article content --- */
.prose { max-width: 760px; }
.prose > * + * { margin-top: var(--sp-4); }
.prose h2 { margin-top: var(--sp-12); font-size: var(--fs-2xl); }
.prose h3 { margin-top: var(--sp-8); font-size: var(--fs-xl); }
.prose p, .prose li { color: var(--color-text-2); }
.prose ul, .prose ol { padding-left: var(--sp-6); }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: var(--sp-2); }
.prose a { text-decoration: underline; text-underline-offset: 2px; }
.prose strong { color: var(--color-text); font-weight: var(--fw-semibold); }
.prose blockquote { border-left: 3px solid var(--color-primary); padding-left: var(--sp-4); color: var(--color-text-2); font-style: italic; }
.prose img { border-radius: var(--radius); margin-block: var(--sp-6); }

/* Content tables */
.table-wrap { overflow-x: auto; margin-block: var(--sp-6); border: 1px solid var(--color-border); border-radius: var(--radius); }
.prose table, .data-table { font-size: var(--fs-sm); }
.prose th, .prose td, .data-table th, .data-table td { padding: var(--sp-3) var(--sp-4); text-align: left; border-bottom: 1px solid var(--color-border); }
.prose thead th, .data-table thead th { background: var(--color-surface); font-weight: var(--fw-semibold); color: var(--color-text); white-space: nowrap; }
.prose tbody tr:hover, .data-table tbody tr:hover { background: var(--color-primary-light); }
.data-table td.num, .prose td.num { font-family: var(--font-mono); text-align: right; font-variant-numeric: tabular-nums; }

.link-columns { columns: 3; column-gap: var(--sp-6); }
.link-list { list-style: none; margin: 0; padding: 0; }
.link-list li { break-inside: avoid; margin-bottom: var(--sp-2); }
.link-list a { display: block; padding: var(--sp-2) var(--sp-3); border-radius: var(--radius-sm); color: var(--color-text-2); font-size: var(--fs-sm); transition: background var(--transition), color var(--transition); }
.link-list a:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
@media (max-width: 900px) { .link-columns { columns: 2; } }
@media (max-width: 600px) { .link-columns { columns: 1; } }

/* --- 5.12 Post navigation (prev/next) --- */
.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4); margin-top: var(--sp-12); }
.post-nav a { display: block; padding: var(--sp-4) var(--sp-6); border: 1px solid var(--color-border); border-radius: var(--radius); color: var(--color-text-2); }
.post-nav a:hover { border-color: var(--color-primary-mid); background: var(--color-surface); }
.post-nav small { display: block; color: var(--color-text-3); font-size: var(--fs-xs); text-transform: uppercase; letter-spacing: .05em; }
.post-nav .next { text-align: right; }

/* --- 5.13 Badges / tags / pills --- */
.badge { display: inline-flex; align-items: center; gap: 4px; padding: 4px var(--sp-3); font-size: var(--fs-xs); font-weight: var(--fw-semibold); border-radius: var(--radius-pill); background: var(--color-primary-light); color: var(--color-primary-dark); }
.pill-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }

/* --- 5.14 Footer --- */
.site-footer { background: var(--color-text); color: rgba(255,255,255,.72); padding-block: var(--sp-16) var(--sp-8); margin-top: var(--sp-24); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--sp-8); }
.site-footer h2, .site-footer h3 { color: #fff; font-size: var(--fs-sm); text-transform: uppercase; letter-spacing: .06em; margin-bottom: var(--sp-4); }
.site-footer a { color: rgba(255,255,255,.72); font-size: var(--fs-sm); }
.site-footer a:hover { color: #fff; }
.site-footer li + li { margin-top: var(--sp-2); }
.footer-brand .brand, .footer-brand .brand span { color: #fff; }
.footer-brand p { color: rgba(255,255,255,.6); font-size: var(--fs-sm); margin-top: var(--sp-3); max-width: 34ch; }
.footer-social { display: flex; gap: var(--sp-3); margin-top: var(--sp-4); }
.footer-social a { width: 40px; height: 40px; border-radius: var(--radius-sm); background: rgba(255,255,255,.08); display: grid; place-items: center; }
.footer-social a:hover { background: var(--color-primary); }
.footer-social svg { width: 20px; height: 20px; }
.footer-bottom { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-3) var(--sp-6); margin-top: var(--sp-12); padding-top: var(--sp-6); border-top: 1px solid rgba(255,255,255,.12); font-size: var(--fs-xs); }
.footer-bottom ul { display: block; flex-shrink: 0; }
.footer-bottom li { display: inline; white-space: nowrap; }
.footer-bottom li:not(:last-child)::after { content: "·"; margin: 0 var(--sp-3); color: rgba(255,255,255,.4); }

/* --- 5.15 Contact form --- */
.form { display: grid; gap: var(--sp-4); max-width: 560px; }
.form-row { display: grid; gap: var(--sp-2); }
.form label { font-weight: var(--fw-medium); font-size: var(--fs-sm); }
.form input, .form select, .form textarea {
  width: 100%; min-height: 48px; padding: var(--sp-3) var(--sp-4);
  background: var(--color-bg); border: 1.5px solid var(--color-border); border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form textarea { min-height: 140px; resize: vertical; }
.form input:focus, .form select:focus, .form textarea:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 3px var(--color-primary-mid); }
.form-hint { font-size: var(--fs-xs); color: var(--color-text-3); }

/* --- 5.16 404 --- */
.error-page { text-align: center; padding-block: var(--sp-24); }
.error-code { font-size: 6rem; font-weight: var(--fw-bold); color: var(--color-primary); line-height: 1; font-family: var(--font-display); }

/* --- 5.17 Section headings --- */
.section-head { max-width: 60ch; margin-bottom: var(--sp-8); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head p { margin-top: var(--sp-3); }

/* ===============================================================
   6. UTILITIES
   =============================================================== */
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.text-center { text-align: center; }
.text-muted { color: var(--color-text-3); }
.text-primary { color: var(--color-primary); }
.fs-lg { font-size: var(--fs-lg); }
.fs-xl { font-size: var(--fs-xl); }
.fs-2xl { font-size: var(--fs-2xl); }
.stat-value { font-size: var(--fs-2xl); line-height: 1.1; }
.big-num { font-size: var(--fs-xl); }
.flow > * + * { margin-top: var(--sp-4); }
.mt-0{margin-top:0}.mt-2{margin-top:var(--sp-2)}.mt-4{margin-top:var(--sp-4)}
.mt-6{margin-top:var(--sp-6)}.mt-8{margin-top:var(--sp-8)}.mt-12{margin-top:var(--sp-12)}
.mb-4{margin-bottom:var(--sp-4)}.mb-6{margin-bottom:var(--sp-6)}.mb-8{margin-bottom:var(--sp-8)}
.hidden { display: none !important; }
.no-wrap { white-space: nowrap; }
.surface { background: var(--color-surface); }
.rounded { border-radius: var(--radius); }

/* ===============================================================
   7. RESPONSIVE
   =============================================================== */
@media (max-width: 768px) {
  :root { --fs-4xl: 2.25rem; --fs-3xl: 1.875rem; --fs-2xl: 1.5rem; }
  .section { padding-block: var(--sp-12); }
  .section-sm { padding-block: var(--sp-8); }

  /* Nav → drawer */
  .nav-toggle { display: inline-flex; }
  /* Full-width dropdown panel that slides down from under the header.
     Hidden state sits above the viewport top (translateY -120%), which is
     clipped by the viewport and never creates scrollbars — robust across engines. */
  .primary-nav {
    position: fixed; top: var(--header-h); left: 0; right: 0;
    max-height: calc(100dvh - var(--header-h));
    background: var(--color-bg); border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg); padding: var(--sp-4);
    transform: translateY(-120%); transition: transform var(--transition-slow), visibility var(--transition-slow);
    visibility: hidden;
    overflow-y: auto; overscroll-behavior: contain; z-index: 120;
  }
  .primary-nav.is-open { transform: translateY(0); visibility: visible; }
  .primary-nav > ul { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { width: 100%; justify-content: space-between; }
  .nav-item { width: 100%; }
  .nav-dropdown {
    position: static; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; border: none; border-radius: 0; padding-left: var(--sp-4);
    max-height: 0; overflow: hidden; transition: max-height var(--transition-slow);
  }
  .nav-item.is-expanded .nav-dropdown { max-height: 1000px; }
  .nav-dropdown-cols { columns: 1; }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-8); }
  .post-nav { grid-template-columns: 1fr; }
  .cta { padding: var(--sp-8); }
  .hero { padding-block: var(--sp-12) var(--sp-8); }
}

@media (max-width: 480px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* Nav drawer scroll-lock helper (set on <body> by main.js) */
body.nav-open { overflow: hidden; }

/* ===============================================================
   8. ACCESSIBILITY
   =============================================================== */
:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}
a:focus-visible, .btn:focus-visible, button:focus-visible,
summary:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-primary); outline-offset: 2px;
}
/* Ensure interactive targets stay >=44px on touch */
@media (pointer: coarse) {
  .nav-dropdown a, .search-results a, .footer-bottom a { min-height: 44px; display: flex; align-items: center; }
}
@media (forced-colors: active) {
  .btn-primary { border: 1px solid; }
  .card, .faq-item { border: 1px solid; }
}

/* ===============================================================
   9. RESTORED LONG-FORM CONTENT (design match for full-body pages)
   Used by state/tool/guide pages after content-restore — see
   BLUEPRINT.md §14. Reuses existing tokens/typography only.
   =============================================================== */
.post-content { color: var(--color-text-2); }
.post-content > *:first-child { margin-top: 0; }
.post-content h2 {
  margin-top: var(--sp-16);
  padding-top: var(--sp-8);
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}
.post-content > h2:first-of-type,
.post-content .content-intro + h2 {
  margin-top: var(--sp-8);
  padding-top: 0;
  border-top: none;
}
.post-content h3 { margin-top: var(--sp-8); color: var(--color-text); }
.post-content h4 {
  margin-top: var(--sp-6);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-primary-darker);
}
.post-content p { margin-block: var(--sp-4); line-height: 1.7; }
.post-content .content-intro { font-size: var(--fs-md); color: var(--color-text-2); }
.post-content ul, .post-content ol { margin-block: var(--sp-4); padding-left: var(--sp-6); display: grid; gap: var(--sp-2); }
.post-content li { line-height: 1.65; }
.post-content ul > li::marker { color: var(--color-primary); }
.post-content strong { color: var(--color-text); font-weight: var(--fw-semibold); }
.post-content a { text-decoration: underline; text-decoration-color: var(--color-primary-mid); text-underline-offset: 2px; }
.post-content .table-wrap { margin-block: var(--sp-6); }
.post-content .hero-image,
.post-content .content-image {
  width: 100%; height: auto; border-radius: var(--radius-lg);
  box-shadow: var(--shadow); margin-block: var(--sp-6) var(--sp-8);
  display: block;
}
.post-content .content-image { max-width: 720px; margin-inline: auto; }
.post-content .img-caption {
  margin-top: calc(-1 * var(--sp-6)); margin-bottom: var(--sp-8);
  font-size: var(--fs-sm); color: var(--color-text-3); text-align: center;
}