/* ============================================================
   DomainCashflow.com — Main Stylesheet
   Generic SSI Template System — Customize per site
   ============================================================ */

/* ============================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================ */
:root {
  /* Brand Colors */
  --color-primary:       #1a6b3c;   /* Deep green */
  --color-primary-dark:  #124d2b;
  --color-primary-light: #2a9d5c;
  --color-accent:        #f0a500;   /* Gold/amber */
  --color-accent-dark:   #c87f00;

  /* Neutrals */
  --color-text:          #1a1a2e;
  --color-text-muted:    #5a5a7a;
  --color-text-light:    #8888aa;
  --color-bg:            #ffffff;
  --color-bg-alt:        #f7f8fc;
  --color-bg-dark:       #1a1a2e;
  --color-border:        #e2e4ef;
  --color-border-light:  #f0f1f8;

  /* Typography */
  --font-sans:   'Inter', system-ui, -apple-system, sans-serif;
  --font-serif:  'Merriweather', Georgia, serif;

  --text-xs:    0.75rem;
  --text-sm:    0.875rem;
  --text-base:  1rem;
  --text-lg:    1.125rem;
  --text-xl:    1.25rem;
  --text-2xl:   1.5rem;
  --text-3xl:   1.875rem;
  --text-4xl:   2.25rem;
  --text-5xl:   3rem;

  --leading-tight:  1.25;
  --leading-snug:   1.375;
  --leading-normal: 1.6;
  --leading-relaxed:1.75;

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

  /* Layout */
  --container-max:    1200px;
  --container-narrow: 760px;
  --sidebar-width:    300px;
  --gap:              2rem;

  /* Borders & Shadows */
  --radius-sm:  4px;
  --radius-md:  8px;
  --radius-lg:  12px;
  --radius-xl:  20px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:  0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:  0 8px 32px rgba(0,0,0,0.12);

  /* Transitions */
  --transition: 0.2s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background: var(--color-bg);
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 2px; }
a:hover { color: var(--color-primary-dark); }
ul, ol { list-style: none; }

/* ============================================================
   3. LAYOUT UTILITIES
   ============================================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* ============================================================
   4. SITE HEADER
   ============================================================ */
.site-header {
  background: var(--color-bg-dark);
  padding: var(--space-4) 0;
  border-bottom: 3px solid var(--color-primary);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  text-decoration: none;
  color: #fff;
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
}

.site-logo:hover { color: var(--color-accent); }

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: var(--text-xl);
  font-weight: 900;
  flex-shrink: 0;
}

.logo-text strong { color: var(--color-accent); }

.site-tagline {
  color: rgba(255,255,255,0.55);
  font-size: var(--text-sm);
  margin-left: auto;
}

/* ============================================================
   5. NAVIGATION
   ============================================================ */
.site-nav {
  background: var(--color-primary);
  position: relative;
  z-index: 100;
}

.nav-inner {
  display: flex;
  align-items: stretch;
  position: relative;
}

.nav-menu {
  display: flex;
  align-items: stretch;
  gap: 0;
  list-style: none;
}

.nav-menu > li {
  position: relative;
}

.nav-menu > li > a {
  display: block;
  padding: var(--space-4) var(--space-5);
  color: rgba(255,255,255,0.9);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 500;
  white-space: nowrap;
  transition: background var(--transition), color var(--transition);
}

.nav-menu > li > a:hover,
.nav-menu > li > a.active {
  background: rgba(0,0,0,0.2);
  color: #fff;
}

.nav-menu > li > a.active {
  border-bottom: 3px solid var(--color-accent);
}

/* Dropdown */
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--color-bg-dark);
  min-width: 260px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  z-index: 200;
}

.nav-has-dropdown:hover .nav-dropdown,
.nav-has-dropdown.nav-dropdown--open .nav-dropdown {
  display: block;
}

.nav-dropdown li a {
  display: block;
  padding: var(--space-3) var(--space-5);
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: background var(--transition), color var(--transition);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.nav-dropdown li:last-child a { border-bottom: none; }
.nav-dropdown li a:hover { background: var(--color-primary); color: #fff; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-3);
  margin-left: auto;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition);
}

/* ============================================================
   6. HERO SECTION
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #0d2b1a 100%);
  padding: var(--space-20) 0;
  color: #fff;
}

.hero-inner {
  display: grid;
  gap: var(--space-12);
}

.hero-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  line-height: var(--leading-tight);
  font-weight: 700;
  margin-bottom: var(--space-6);
  color: #fff;
}

.hero-sub {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.75);
  line-height: var(--leading-relaxed);
  max-width: 640px;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.hero-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.hero-stat {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  text-align: center;
}

.hero-stat-number {
  display: block;
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.hero-stat-label {
  display: block;
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.6);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================
   7. BUTTONS
   ============================================================ */
.btn {
  display: inline-block;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.4;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

.btn--secondary {
  background: var(--color-accent);
  color: var(--color-bg-dark);
  border-color: var(--color-accent);
}
.btn--secondary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-bg-dark);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--ghost:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn--outline {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn--lg { padding: var(--space-4) var(--space-8); font-size: var(--text-base); }
.btn--full { width: 100%; text-align: center; display: block; }

/* ============================================================
   8. SECTIONS
   ============================================================ */
.section {
  padding: var(--space-20) 0;
}

.section--dark {
  background: var(--color-bg-dark);
  color: #fff;
}

.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark p { color: rgba(255,255,255,0.8); }

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto var(--space-12);
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  margin-bottom: var(--space-4);
  line-height: var(--leading-tight);
}

.section-intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   9. STRATEGY CARDS (Homepage)
   ============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--space-6);
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  line-height: 1;
}

.card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-3);
  line-height: var(--leading-snug);
}

.card h3 a { text-decoration: none; color: var(--color-text); }
.card h3 a:hover { color: var(--color-primary); }

.card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.card-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}
.card-link:hover { text-decoration: underline; }

/* ============================================================
   10. FEATURE SPLIT (Homepage BD Section)
   ============================================================ */
.feature-split {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--space-12);
  align-items: start;
}

.feature-eyebrow {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.feature-split-content h2 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-4xl));
  line-height: var(--leading-tight);
  margin-bottom: var(--space-5);
}

.feature-split-content p {
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

.feature-list {
  list-style: none;
  margin: var(--space-6) 0;
}

.feature-list li {
  padding: var(--space-2) 0;
  padding-left: var(--space-6);
  position: relative;
  font-size: var(--text-sm);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.feature-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.feature-list li a { color: rgba(255,255,255,0.85); }
.feature-list li a:hover { color: var(--color-accent); }

.feature-actions {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
  margin-top: var(--space-6);
}

.feature-card {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  position: sticky;
  top: var(--space-6);
}

.feature-card-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.feature-card h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-3);
}

.feature-card p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-5);
  line-height: var(--leading-relaxed);
}

.feature-card .btn { margin-bottom: var(--space-3); }

.feature-card-fine {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  text-align: center;
  margin-top: var(--space-4);
  margin-bottom: 0 !important;
}

/* ============================================================
   11. ABOUT INTRO SECTION
   ============================================================ */
.section--about-intro {
  background: var(--color-bg-alt);
}

.section--about-intro h2 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-2xl), 3vw, var(--text-3xl));
  margin-bottom: var(--space-5);
}

.section--about-intro p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   12. PAGE HEADERS (Index Pages)
   ============================================================ */
.page-header {
  padding: var(--space-12) 0 var(--space-8);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-10);
}

.page-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
}

.page-intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 680px;
  line-height: var(--leading-relaxed);
}

/* ============================================================
   13. ARTICLE INDEX GRID
   ============================================================ */
.article-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.index-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: box-shadow var(--transition);
}

.index-card:hover { box-shadow: var(--shadow-md); }

.index-card-meta {
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.index-card h2 {
  font-size: var(--text-lg);
  font-weight: 700;
  line-height: var(--leading-snug);
  margin-bottom: var(--space-3);
}

.index-card h2 a { text-decoration: none; color: var(--color-text); }
.index-card h2 a:hover { color: var(--color-primary); }

.index-card p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}

.index-card-link {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}
.index-card-link:hover { text-decoration: underline; }

/* ============================================================
   14. ARTICLE LAYOUT (with sidebar)
   ============================================================ */
.article-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--space-12);
  align-items: start;
  padding-top: var(--space-10);
  padding-bottom: var(--space-16);
}

.article-body {
  min-width: 0;
}

.article-header {
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.article-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.article-category a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.article-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  line-height: var(--leading-tight);
  margin-bottom: var(--space-4);
  color: var(--color-text);
}

.article-intro {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  font-style: italic;
}

/* Article body typography */
.article-body h2 {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  line-height: var(--leading-snug);
  color: var(--color-text);
}

.article-body h3 {
  font-size: var(--text-xl);
  font-weight: 700;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
  color: var(--color-text);
}

.article-body p {
  margin-bottom: var(--space-5);
  line-height: var(--leading-relaxed);
  font-size: var(--text-base);
}

.article-body ul, .article-body ol {
  list-style: disc;
  padding-left: var(--space-6);
  margin-bottom: var(--space-5);
}

.article-body li {
  margin-bottom: var(--space-2);
  line-height: var(--leading-relaxed);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-body th {
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: 600;
}

.article-body td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.article-body tr:last-child td { border-bottom: none; }
.article-body tr:nth-child(even) td { background: var(--color-bg-alt); }

/* ============================================================
   15. CTA BOX (Brilliant Directories)
   ============================================================ */
.cta-box {
  margin: var(--space-10) 0;
  border-radius: var(--radius-xl);
  overflow: hidden;
}

.cta-box--bd {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: #fff;
}

.cta-box-inner {
  padding: var(--space-8) var(--space-10);
  text-align: center;
}

.cta-box-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}

.cta-box-heading {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  color: #fff;
  margin-bottom: var(--space-4);
  line-height: var(--leading-snug);
}

.cta-box-body {
  color: rgba(255,255,255,0.85);
  font-size: var(--text-base);
  max-width: 560px;
  margin: 0 auto var(--space-6);
  line-height: var(--leading-relaxed);
}

.cta-box-actions {
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-4);
}

.cta-box--bd .btn--secondary {
  background: rgba(255,255,255,0.15);
  color: #fff;
  border-color: rgba(255,255,255,0.4);
}

.cta-box--bd .btn--secondary:hover {
  background: rgba(255,255,255,0.25);
  border-color: #fff;
}

.cta-box-fine {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.55);
  margin-bottom: 0 !important;
}

.cta-box-fine a { color: rgba(255,255,255,0.75); }

/* ============================================================
   16. ARTICLE SIDEBAR
   ============================================================ */
.article-sidebar {
  position: sticky;
  top: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.sidebar-widget {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
}

.sidebar-widget--cta {
  background: var(--color-bg-dark);
  border-color: var(--color-primary);
  color: #fff;
}

.sidebar-cta-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.sidebar-widget--cta h3 {
  color: #fff;
  font-size: var(--text-base);
  margin-bottom: var(--space-2);
}

.sidebar-widget--cta p {
  color: rgba(255,255,255,0.7);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
  line-height: var(--leading-relaxed);
}

.sidebar-widget--cta .btn { margin-bottom: var(--space-2); }

.sidebar-widget h4 {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.sidebar-links {
  list-style: none;
  padding: 0;
}

.sidebar-links li {
  border-bottom: 1px solid var(--color-border-light);
  padding: var(--space-2) 0;
}

.sidebar-links li:last-child { border-bottom: none; }

.sidebar-links a {
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  line-height: var(--leading-snug);
}

.sidebar-links a:hover { color: var(--color-primary); text-decoration: underline; }

/* ============================================================
   17. RESOURCES PAGE
   ============================================================ */
.resources-section {
  padding: var(--space-10) 0;
  border-bottom: 1px solid var(--color-border);
}

.resources-section:last-child { border-bottom: none; }

.resources-section h2 {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  margin-bottom: var(--space-6);
}

.resource-cards { display: flex; flex-direction: column; gap: var(--space-5); }

.resource-card {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.resource-card--featured {
  background: var(--color-bg-dark);
  border-color: var(--color-primary);
  color: #fff;
}

.resource-card-badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg-dark);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 2px var(--space-2);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-3);
}

.resource-card h3 {
  font-size: var(--text-xl);
  margin-bottom: var(--space-3);
}

.resource-card--featured h3 { color: #fff; }

.resource-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}

.resource-card--featured p { color: rgba(255,255,255,0.75); }

.resource-card-links {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}

.resource-card-learn {
  font-size: var(--text-sm);
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  margin-left: var(--space-2);
}

.resource-card-learn:hover { color: var(--color-accent); }

.resource-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--space-5);
}

.resource-item {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

.resource-item h3 {
  font-size: var(--text-base);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.resource-item p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
}

/* ============================================================
   18. FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-bg-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-16);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-8);
  margin-bottom: var(--space-10);
}

.footer-about h3 {
  color: #fff;
  font-size: var(--text-lg);
  margin-bottom: var(--space-3);
}

.footer-about p {
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.footer-col h4 {
  color: #fff;
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.footer-col ul { list-style: none; }

.footer-col li {
  margin-bottom: var(--space-2);
}

.footer-col a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color var(--transition);
}

.footer-col a:hover { color: var(--color-accent); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
}

.footer-copyright {
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

.footer-disclaimer {
  font-size: var(--text-xs);
  color: rgba(255,255,255,0.4);
  line-height: var(--leading-relaxed);
  max-width: 700px;
}

/* ============================================================
   19. ERROR PAGE
   ============================================================ */
.error-page {
  text-align: center;
  padding: var(--space-20) 0;
}

.error-code {
  font-size: 6rem;
  font-weight: 900;
  color: var(--color-border);
  line-height: 1;
  margin-bottom: var(--space-4);
}

.error-page h1 {
  font-size: var(--text-3xl);
  margin-bottom: var(--space-4);
}

.error-page p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.error-links {
  list-style: none;
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

.error-links a {
  font-weight: 600;
}

/* ============================================================
   20. RESPONSIVE — TABLET (max 960px)
   ============================================================ */
@media (max-width: 960px) {
  .feature-split {
    grid-template-columns: 1fr;
  }

  .feature-card {
    position: static;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .hero-stat-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================================
   21. RESPONSIVE — MOBILE (max 768px)
   ============================================================ */
@media (max-width: 768px) {
  :root {
    --gap: 1rem;
  }

  .container { padding: 0 var(--space-4); }

  .site-tagline { display: none; }

  .nav-toggle { display: flex; }

  .nav-menu {
    display: none;
    flex-direction: column;
    width: 100%;
    background: var(--color-primary-dark);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 200;
    padding: var(--space-2) 0;
  }

  .nav-menu.nav-menu--open { display: flex; }

  .nav-menu > li > a {
    padding: var(--space-3) var(--space-5);
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .nav-dropdown {
    position: static;
    display: none;
    background: rgba(0,0,0,0.2);
    box-shadow: none;
    border-radius: 0;
    min-width: 0;
  }

  .nav-dropdown--open .nav-dropdown { display: block; }

  .article-layout {
    grid-template-columns: 1fr;
    padding-top: var(--space-6);
  }

  .article-sidebar {
    position: static;
  }

  .hero { padding: var(--space-12) 0; }

  .hero-stat-grid {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

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

  .article-index-grid { grid-template-columns: 1fr; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .cta-box-inner { padding: var(--space-6); }

  .cta-box-actions { flex-direction: column; align-items: center; }

  .hero-actions { flex-direction: column; }

  .feature-actions { flex-direction: column; }
}