/* ============================================
   CertificationDestination.com — Core Styles
   Version: 1.0 MVP
   ============================================ */

/* ----------------------------------------
   CSS Custom Properties (Design Tokens)
   ---------------------------------------- */
:root {
  /* Primary — Deep Navy (Trust, Authority) */
  --color-primary: #1a2744;
  --color-primary-light: #2d3f5f;
  --color-primary-dark: #0f1829;
  
  /* Secondary — Warm Teal (Growth, Forward-thinking) */
  --color-secondary: #2a9d8f;
  --color-secondary-light: #40b4a6;
  --color-secondary-dark: #1f7a6e;
  
  /* Accent — Amber (Action, Energy) */
  --color-accent: #e9a319;
  --color-accent-light: #f4b942;
  --color-accent-dark: #c78a0e;
  
  /* Neutrals */
  --color-neutral-900: #1a1a1a;
  --color-neutral-800: #2d2d2d;
  --color-neutral-700: #4a4a4a;
  --color-neutral-600: #636363;
  --color-neutral-500: #7d7d7d;
  --color-neutral-400: #9a9a9a;
  --color-neutral-300: #c4c4c4;
  --color-neutral-200: #e0e0e0;
  --color-neutral-100: #f0f0f0;
  --color-neutral-50: #f8f8f8;
  
  /* Backgrounds */
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f7f9fb;
  --color-bg-tertiary: #eef2f6;
  --color-bg-dark: #1a2744;
  
  /* Semantic */
  --color-success: #2a9d8f;
  --color-warning: #e9a319;
  --color-error: #c44536;
  --color-info: #4a90d9;

  /* Spacing Scale (8px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 2.5rem;
  --space-8: 3rem;
  --space-9: 4rem;
  --space-10: 5rem;
  --space-11: 6rem;
  --space-12: 8rem;

  /* Container Widths */
  --container-sm: 640px;
  --container-md: 768px;
  --container-lg: 1024px;
  --container-xl: 1200px;
  --container-2xl: 1400px;

  /* Typography Scale */
  --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;
  --text-6xl: 3.75rem;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-snug: 1.35;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 1.75;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 4px 16px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 8px 32px rgba(0, 0, 0, 0.12);
  --shadow-card: 0 1px 3px rgba(0, 0, 0, 0.04);
  --shadow-card-hover: 0 4px 12px rgba(0, 0, 0, 0.08);

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.2s ease;
  --transition-slow: 0.3s ease;

  /* Font Families */
  --font-heading: "DM Serif Display", Georgia, serif;
  --font-body: "Source Sans 3", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Consolas", "Monaco", monospace;
}

/* ----------------------------------------
   Reset & Base Styles
   ---------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-height-normal);
  color: var(--color-neutral-800);
  background-color: var(--color-bg-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-secondary-dark);
}

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

/* ----------------------------------------
   Typography
   ---------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: var(--line-height-tight);
  color: var(--color-primary);
}

h1 {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-6xl));
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(var(--text-2xl), 4vw, var(--text-4xl));
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(var(--text-xl), 3vw, var(--text-2xl));
}

h4 {
  font-size: var(--text-xl);
}

h5 {
  font-size: var(--text-lg);
}

h6 {
  font-size: var(--text-base);
  font-family: var(--font-body);
  font-weight: 600;
}

p {
  margin-bottom: var(--space-4);
}

p:last-child {
  margin-bottom: 0;
}

.lead {
  font-size: var(--text-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-neutral-600);
}

.small {
  font-size: var(--text-sm);
}

.mono {
  font-family: var(--font-mono);
  font-size: 0.9em;
}

strong, b {
  font-weight: 600;
}

/* ----------------------------------------
   Layout Utilities
   ---------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-xl);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }
.container-2xl { max-width: var(--container-2xl); }

.section {
  padding: var(--space-10) 0;
}

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

.section-sm {
  padding: var(--space-8) 0;
}

/* Flex utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-start { justify-content: flex-start; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* Grid utilities */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: 1fr; }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }

/* Text alignment */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* ----------------------------------------
   Buttons
   ---------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-secondary);
  color: white;
  box-shadow: 0 2px 4px rgba(42, 157, 143, 0.2);
}

.btn-primary:hover {
  background: var(--color-secondary-dark);
  color: white;
  transform: translateY(-1px);
  box-shadow: 0 4px 8px rgba(42, 157, 143, 0.25);
}

.btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: white;
}

.btn-accent {
  background: var(--color-accent);
  color: var(--color-neutral-900);
  font-weight: 700;
  box-shadow: 0 2px 4px rgba(233, 163, 25, 0.3);
}

.btn-accent:hover {
  background: var(--color-accent-light);
  color: var(--color-neutral-900);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(233, 163, 25, 0.35);
}

.btn-ghost {
  background: transparent;
  color: var(--color-neutral-700);
}

.btn-ghost:hover {
  background: var(--color-neutral-100);
  color: var(--color-neutral-900);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

/* ----------------------------------------
   Cards
   ---------------------------------------- */
.card {
  background: var(--color-bg-primary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  border: 1px solid var(--color-neutral-200);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-base);
}

.card:hover {
  border-color: var(--color-neutral-300);
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.card-link:hover {
  color: inherit;
}

.card-featured {
  border: 2px solid var(--color-secondary);
  box-shadow: 0 4px 20px rgba(42, 157, 143, 0.12);
}

.card-featured:hover {
  box-shadow: 0 8px 30px rgba(42, 157, 143, 0.18);
}

.card-category {
  text-align: center;
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  transition: all 0.25s ease;
}

.card-category:hover {
  border-color: var(--color-secondary);
  box-shadow: 0 8px 24px rgba(42, 157, 143, 0.15);
  transform: translateY(-4px);
}

.card-category .card-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  font-size: var(--text-2xl);
}

.card-category h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.card-category p {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  margin: 0;
}

/* ----------------------------------------
   Header / Navigation
   ---------------------------------------- */
.site-header {
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-neutral-200);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-5);
  max-width: var(--container-xl);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-primary);
  text-decoration: none;
}

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

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--color-secondary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 700;
  font-family: var(--font-body);
}

.main-nav {
  display: none;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.main-nav a {
  color: var(--color-neutral-700);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition-base);
}

.main-nav a:hover {
  color: var(--color-primary);
}

.main-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  display: none;
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-neutral-700);
  border-radius: 2px;
}

/* ----------------------------------------
   Hero Section
   ---------------------------------------- */
.hero {
  padding: var(--space-10) 0 var(--space-12);
  background: linear-gradient(180deg, var(--color-bg-secondary) 0%, var(--color-bg-primary) 100%);
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.hero h1 {
  margin-bottom: var(--space-5);
}

.hero .lead {
  margin-bottom: var(--space-8);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ----------------------------------------
   Search UI (Static)
   ---------------------------------------- */
.search-box {
  background: var(--color-bg-primary);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  max-width: 700px;
  margin: 0 auto;
}

.search-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.search-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  background: var(--color-bg-secondary);
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  padding: var(--space-3) var(--space-4);
  transition: border-color var(--transition-fast);
}

.search-input-wrapper:focus-within {
  border-color: var(--color-secondary);
}

.search-icon {
  color: var(--color-neutral-400);
  flex-shrink: 0;
}

.search-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: var(--text-lg);
  outline: none;
}

.search-input::placeholder {
  color: var(--color-neutral-400);
}

.search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.filter-select {
  flex: 1;
  min-width: 150px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-md);
  background: var(--color-bg-primary);
  font-size: var(--text-sm);
  color: var(--color-neutral-700);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%234a4a4a' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.filter-select:focus {
  outline: none;
  border-color: var(--color-secondary);
}

/* ----------------------------------------
   Categories Grid
   ---------------------------------------- */
.categories-section {
  background: var(--color-bg-primary);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header h2 {
  margin-bottom: var(--space-3);
}

.section-header p {
  color: var(--color-neutral-600);
  max-width: 600px;
  margin: 0 auto;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

/* ----------------------------------------
   Popular Certifications
   ---------------------------------------- */
.popular-section {
  background: var(--color-bg-secondary);
}

.cert-grid {
  display: grid;
  gap: var(--space-5);
}

.cert-card {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.cert-card-image {
  width: 100%;
  aspect-ratio: 16/9;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-3xl);
}

.cert-card-content h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.cert-card-content h3 a {
  color: var(--color-primary);
}

.cert-card-content h3 a:hover {
  color: var(--color-secondary);
}

.cert-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
}

.cert-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.cert-card-content p {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  margin-bottom: var(--space-4);
}

.tag {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-neutral-700);
}

.tag-category {
  background: rgba(42, 157, 143, 0.1);
  color: var(--color-secondary-dark);
}

/* ----------------------------------------
   Trust Section (How We Evaluate)
   ---------------------------------------- */
.trust-section {
  background: var(--color-bg-primary);
}

.trust-grid {
  display: grid;
  gap: var(--space-6);
}

.trust-item {
  text-align: center;
  padding: var(--space-5);
}

.trust-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-4);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
}

.trust-item h3 {
  font-size: var(--text-lg);
  margin-bottom: var(--space-2);
}

.trust-item p {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  margin: 0;
}

/* ----------------------------------------
   Newsletter Section
   ---------------------------------------- */
.newsletter-section {
  background: var(--color-bg-dark);
  color: white;
}

.newsletter-content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.newsletter-content h2 {
  color: white;
  margin-bottom: var(--space-3);
}

.newsletter-content p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--space-6);
}

.newsletter-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.newsletter-input {
  padding: var(--space-4);
  border: 2px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-size: var(--text-base);
}

.newsletter-input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.newsletter-input:focus {
  outline: none;
  border-color: var(--color-secondary);
  background: rgba(255, 255, 255, 0.15);
}

.newsletter-disclaimer {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--space-3);
}

/* ----------------------------------------
   Footer
   ---------------------------------------- */
.site-footer {
  background: var(--color-neutral-900);
  color: var(--color-neutral-400);
  padding: var(--space-10) 0 var(--space-6);
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  margin-bottom: var(--space-8);
}

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

.footer-brand .logo {
  color: white;
  margin-bottom: var(--space-4);
}

.footer-brand p {
  font-size: var(--text-sm);
  line-height: var(--line-height-relaxed);
  margin: 0;
}

.footer-nav h4 {
  color: white;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-nav a {
  color: var(--color-neutral-400);
  font-size: var(--text-sm);
}

.footer-nav a:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-neutral-800);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  text-align: center;
}

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

.footer-legal a {
  color: var(--color-neutral-500);
  font-size: var(--text-xs);
}

.footer-legal a:hover {
  color: var(--color-neutral-300);
}

.footer-copyright {
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
}

.footer-disclosure {
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
  max-width: 700px;
  margin: 0 auto;
  line-height: var(--line-height-relaxed);
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-md);
}

/* ----------------------------------------
   Certification Page Styles
   ---------------------------------------- */
.cert-hero {
  background: linear-gradient(180deg, var(--color-bg-tertiary) 0%, var(--color-bg-primary) 100%);
  padding: var(--space-8) 0 var(--space-10);
}

.cert-hero-content {
  max-width: 800px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
  margin-bottom: var(--space-4);
}

.breadcrumb a {
  color: var(--color-neutral-500);
}

.breadcrumb a:hover {
  color: var(--color-secondary);
}

.breadcrumb span {
  color: var(--color-neutral-400);
}

.cert-hero h1 {
  margin-bottom: var(--space-4);
}

.cert-hero .lead {
  margin-bottom: var(--space-4);
}

.best-for {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(42, 157, 143, 0.1);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--color-secondary-dark);
  font-weight: 500;
}

/* Quick Facts Grid */
.quick-facts {
  background: var(--color-bg-primary);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  margin: calc(-1 * var(--space-8)) auto var(--space-8);
  max-width: 900px;
  position: relative;
  z-index: 10;
  box-shadow: var(--shadow-lg);
}

.quick-facts-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.fact-item {
  text-align: center;
  padding: var(--space-3);
}

.fact-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral-500);
  margin-bottom: var(--space-1);
}

.fact-value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
}

/* Content Sections */
.cert-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.content-section {
  margin-bottom: var(--space-10);
}

.content-section h2 {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-neutral-100);
}

.content-section h3 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-3);
}

.content-section ul,
.content-section ol {
  margin-left: var(--space-5);
  margin-bottom: var(--space-4);
}

.content-section li {
  margin-bottom: var(--space-2);
  line-height: var(--line-height-relaxed);
}

.content-section ul li {
  list-style: disc;
}

.content-section ol li {
  list-style: decimal;
}

/* Two Column Layout */
.two-column {
  display: grid;
  gap: var(--space-6);
}

.column-card {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
}

.column-card.positive {
  background: rgba(42, 157, 143, 0.08);
  border: 1px solid rgba(42, 157, 143, 0.2);
}

.column-card.negative {
  background: rgba(196, 69, 54, 0.08);
  border: 1px solid rgba(196, 69, 54, 0.2);
}

.column-card h3 {
  margin-top: 0;
}

/* Study Plan */
.study-tracks {
  display: grid;
  gap: var(--space-5);
}

.track {
  padding: var(--space-5);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-neutral-200);
}

.track-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-neutral-200);
}

.track-header h4 {
  margin: 0;
}

.track-duration {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-secondary);
  font-weight: 600;
}

/* Resources Grid */
.resources-grid {
  display: grid;
  gap: var(--space-4);
}

.resource-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-neutral-200);
}

.resource-card.featured {
  border-color: var(--color-secondary);
  background: rgba(42, 157, 143, 0.04);
}

.resource-badge {
  flex-shrink: 0;
  padding: var(--space-1) var(--space-2);
  background: var(--color-secondary);
  color: white;
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-sm);
}

.resource-info {
  flex: 1;
}

.resource-info h4 {
  margin-bottom: var(--space-1);
}

.resource-info p {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  margin-bottom: var(--space-2);
}

.affiliate-label {
  font-size: var(--text-xs);
  color: var(--color-neutral-500);
}

/* FAQ Section */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.faq-item {
  padding: var(--space-5);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-neutral-200);
}

.faq-item h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--text-base);
  margin: 0 0 var(--space-3) 0;
  color: var(--color-primary);
}

.faq-item p {
  margin: 0;
  color: var(--color-neutral-700);
}

/* Alternatives Section */
.alternatives-grid {
  display: grid;
  gap: var(--space-4);
}

.alt-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  background: var(--color-bg-primary);
  border: 1px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
}

.alt-card:hover {
  border-color: var(--color-secondary);
}

.alt-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.alt-info h4 {
  margin-bottom: var(--space-1);
}

.alt-info h4 a {
  color: var(--color-primary);
}

.alt-info h4 a:hover {
  color: var(--color-secondary);
}

.alt-info p {
  font-size: var(--text-sm);
  color: var(--color-neutral-600);
  margin: 0;
}

/* CTA Box */
.cta-box {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
  color: white;
  margin: var(--space-10) 0;
}

.cta-box h2 {
  color: white;
  margin-bottom: var(--space-3);
}

.cta-box p {
  opacity: 0.9;
  margin-bottom: var(--space-6);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

.cta-buttons {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  justify-content: center;
  align-items: center;
}

.inline-disclosure {
  font-size: var(--text-xs);
  opacity: 0.7;
  margin-top: var(--space-4);
}

/* ----------------------------------------
   Responsive Breakpoints
   ---------------------------------------- */
@media (min-width: 640px) {
  .search-form {
    flex-direction: row;
    flex-wrap: wrap;
  }
  
  .search-input-wrapper {
    flex: 2;
    min-width: 300px;
  }
  
  .search-filters {
    flex: 1;
    min-width: 300px;
  }
  
  .newsletter-form {
    flex-direction: row;
  }
  
  .newsletter-input {
    flex: 1;
  }
  
  .cta-buttons {
    flex-direction: row;
  }
  
  .two-column {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .study-tracks {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 768px) {
  .categories-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .cert-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .trust-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .quick-facts-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .alternatives-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .main-nav {
    display: block;
  }
  
  .nav-cta {
    display: block;
  }
  
  .mobile-menu-btn {
    display: none;
  }
  
  .categories-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .cert-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  
  .trust-grid {
    grid-template-columns: repeat(4, 1fr);
  }
  
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }
  
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
  
  .quick-facts-grid {
    grid-template-columns: repeat(5, 1fr);
  }
  
  .resources-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1280px) {
  .hero {
    padding: var(--space-12) 0 var(--space-12);
  }
  
  .cert-card {
    grid-template-columns: 200px 1fr;
  }
}

/* ----------------------------------------
   Accessibility
   ---------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--color-secondary);
  outline-offset: 2px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary);
  color: white;
  padding: var(--space-2) var(--space-4);
  z-index: 1000;
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 0;
}