/* ============================================
   European Purpose - Main Stylesheet
   ============================================ */

/* --------------------------------------------
   CSS Variables (Design Tokens)
   -------------------------------------------- */
:root {
  /* Colors */
  --color-primary: #003399;
  --color-primary-dark: #002266;
  --color-primary-light: #1a4fba;
  --color-accent: #FFCC00;
  --color-accent-light: #FFD633;
  --color-accent-dark: #D4A800;

  --color-eu-blue-50: #e6ecf5;
  --color-eu-blue-100: #b3c6e6;
  --color-eu-gold-50: #fff9e0;

  --color-bg: #ffffff;
  --color-bg-alt: #f0f4fa;
  --color-bg-card: #ffffff;

  --color-text: #334155;
  --color-text-light: #64748b;
  --color-text-dark: #1e293b;
  --color-text-inverse: #ffffff;

  --color-border: #e2e8f0;
  --color-border-dark: #cbd5e1;

  --color-success: #059669;
  --color-error: #dc2626;

  /* Typography */
  --font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-family-heading: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --font-family-ui: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-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;

  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 350ms ease;

  /* Layout */
  --max-width: 1200px;
  --max-width-narrow: 800px;
  --header-height: 60px;
}

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

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

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

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

main {
  flex: 1;
}

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

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

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

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

ul, ol {
  list-style: none;
}

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

h1 {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
}

h2 {
  font-size: var(--font-size-3xl);
}

h3 {
  font-size: var(--font-size-2xl);
}

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

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

h6 {
  font-size: var(--font-size-base);
}

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

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

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

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

.text-light {
  color: var(--color-text-light);
}

.text-center {
  text-align: center;
}

/* --------------------------------------------
   Layout Utilities
   -------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

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

.section {
  padding: var(--space-16) 0;
}

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

.section-lg {
  padding: var(--space-24) 0;
}

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

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

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

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.grid-5 {
  grid-template-columns: repeat(5, 1fr);
}

@media (max-width: 1200px) {
  .grid-5 {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 1024px) {
  .grid-4, .grid-5 {
    grid-template-columns: repeat(3, 1fr);
  }
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .grid-4, .grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Keep category grid compact on mobile - 3 columns for small icons */
  .grid-5 {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
  }
}

@media (max-width: 400px) {
  .grid-5 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.flex {
  display: flex;
}

.flex-center {
  align-items: center;
  justify-content: center;
}

.flex-between {
  align-items: center;
  justify-content: space-between;
}

.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }
.gap-8 { gap: var(--space-8); }

/* --------------------------------------------
   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-family-ui);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  white-space: nowrap;
}

.btn:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
  border-color: var(--color-accent);
}

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

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

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

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

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

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

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

.btn-icon {
  padding: var(--space-2);
  border: none;
  background: transparent;
}

.btn-icon svg {
  width: 24px;
  height: 24px;
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-family-ui);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

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

.logo svg {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-tagline {
  display: block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-normal);
  color: var(--color-text-light);
  letter-spacing: 0.02em;
}

.nav-desktop {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

.nav-desktop a {
  color: var(--color-text);
  font-family: var(--font-family-body);
  font-weight: var(--font-weight-medium);
  font-size: var(--font-size-base);
  padding: var(--space-2) 0;
  position: relative;
}

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

.nav-desktop a:hover::after,
.nav-desktop a.active::after {
  width: 100%;
}

.nav-desktop a.active {
  color: var(--color-primary);
}

/* Mobile Navigation */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-toggle svg {
  width: 28px;
  height: 28px;
  color: var(--color-text-dark);
}

.nav-mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-bg);
  z-index: 200;
  flex-direction: column;
  padding: var(--space-6);
  overflow-y: auto;
}

.nav-mobile.is-open {
  display: flex;
}

.nav-mobile-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
}

.nav-mobile-close {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-2);
}

.nav-mobile-close svg {
  width: 28px;
  height: 28px;
}

.nav-mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav-mobile-links a {
  font-family: var(--font-family-body);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
}

.nav-mobile-links a:hover {
  color: var(--color-accent);
}

.nav-mobile-footer {
  margin-top: auto;
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

.nav-mobile-footer a {
  display: block;
  color: var(--color-text-light);
  padding: var(--space-2) 0;
}

.nav-search {
  display: flex;
  align-items: center;
  margin-left: var(--space-4);
}

.nav-search input {
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-family: var(--font-family-ui);
  font-size: var(--font-size-sm);
  width: 180px;
  transition: border-color var(--transition-fast), width var(--transition-normal);
}

.nav-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  width: 240px;
}

@media (max-width: 768px) {
  .nav-desktop {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .nav-search {
    display: none;
  }
}

/* --------------------------------------------
   Footer
   -------------------------------------------- */
.footer {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  padding: var(--space-16) 0 var(--space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer-grid-extended {
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  margin-top: var(--space-4);
  max-width: 300px;
}

.footer-heading {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  color: rgba(255, 255, 255, 0.6);
}

.footer-links a {
  display: block;
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-2) 0;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-inverse);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.6);
}

.footer-bottom a:hover {
  color: var(--color-text-inverse);
}

@media (max-width: 1024px) {
  .footer-grid-extended {
    grid-template-columns: 1fr 1fr 1fr;
    gap: var(--space-8);
  }

  .footer-grid-extended .footer-brand {
    grid-column: span 3;
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-8);
  }

  .footer-brand {
    grid-column: span 2;
  }

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

  .footer-grid-extended .footer-brand {
    grid-column: span 2;
  }

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

@media (max-width: 480px) {
  .footer-grid,
  .footer-grid-extended {
    grid-template-columns: 1fr;
  }

  .footer-brand,
  .footer-grid-extended .footer-brand {
    grid-column: span 1;
  }
}

/* --------------------------------------------
   Cards
   -------------------------------------------- */
.card {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  transition: all var(--transition-fast);
}

.card:hover {
  border-color: var(--color-border-dark);
  box-shadow: var(--shadow-md);
}

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

/* Category Card */
.category-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.category-card-compact {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: var(--space-4);
  gap: var(--space-2);
}

.category-card-compact .category-card-icon {
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-1);
}

.category-card-compact h3 {
  font-size: var(--font-size-sm);
  margin: 0;
}

.category-card-compact .category-card-count {
  font-size: var(--font-size-xs);
}

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

.category-card-icon svg {
  width: 24px;
  height: 24px;
}

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

.category-card p {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
}

.category-card-count {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

/* Tool Card */
.tool-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.tool-card-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
}

.tool-card-logo {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  object-fit: contain;
  background-color: var(--color-bg-alt);
  padding: var(--space-2);
  flex-shrink: 0;
}

.tool-card-info h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-1);
}

.tool-card-tagline {
  color: var(--color-text-light);
  font-size: var(--font-size-sm);
}

.tool-card-category {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  color: var(--color-primary);
  background: var(--color-eu-blue-50);
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-1);
}

.tool-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
}

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

.tool-card-meta svg {
  width: 16px;
  height: 16px;
}

.tool-card-features {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tool-card-features span {
  font-size: var(--font-size-xs);
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  color: var(--color-text);
}

/* Tool Card Rating */
.tool-card-rating {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-3);
}

.tool-card-rating-score {
  font-family: var(--font-family-ui);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary);
}

.tool-card-rating-stars {
  display: flex;
  gap: 2px;
}

.tool-card-rating-stars svg {
  width: 16px;
  height: 16px;
}

.tool-card-rating-stars .star-filled {
  fill: var(--color-accent);
  stroke: var(--color-accent);
}

.tool-card-rating-stars .star-half {
  fill: url(#star-gradient);
  stroke: var(--color-accent);
}

.tool-card-rating-stars .star-empty {
  fill: none;
  stroke: var(--color-border);
}

.tool-card-actions {
  display: flex;
  gap: var(--space-3);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.tool-card-actions .btn {
  flex: 1;
}

/* --------------------------------------------
   Hero Section
   -------------------------------------------- */
.hero {
  background-color: var(--color-bg-alt);
  padding: var(--space-6) 0 var(--space-8);
  text-align: center;
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Search Bar */
.search-container {
  max-width: 600px;
  margin: 0 auto;
}

.search-bar {
  display: flex;
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color var(--transition-fast);
}

.search-bar:focus-within {
  border-color: var(--color-primary);
}

.search-bar input {
  flex: 1;
  padding: var(--space-4) var(--space-6);
  border: none;
  outline: none;
  font-size: var(--font-size-lg);
}

.search-bar button {
  padding: var(--space-4) var(--space-6);
  background-color: var(--color-primary);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.search-bar button:hover {
  background-color: var(--color-primary-dark);
}

.search-bar button svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-inverse);
}

/* --------------------------------------------
   Breadcrumbs
   -------------------------------------------- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family-ui);
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  padding: var(--space-4) 0;
}

.breadcrumbs a {
  color: var(--color-text-light);
}

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

.breadcrumbs span {
  color: var(--color-text);
}

.breadcrumbs svg {
  width: 16px;
  height: 16px;
}

/* --------------------------------------------
   Comparison Table
   -------------------------------------------- */
.comparison-table-wrapper {
  overflow-x: auto;
  margin: var(--space-8) 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.comparison-table th,
.comparison-table td {
  padding: var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.comparison-table th {
  background-color: var(--color-bg-alt);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-dark);
  white-space: nowrap;
}

.comparison-table tr:hover td {
  background-color: var(--color-bg-alt);
}

.comparison-table td:first-child {
  font-weight: var(--font-weight-medium);
}

.table-badge {
  display: inline-block;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
}

.table-badge-yes {
  background-color: #dcfce7;
  color: #166534;
}

.table-badge-no {
  background-color: #fee2e2;
  color: #991b1b;
}

/* --------------------------------------------
   FAQ Accordion
   -------------------------------------------- */
.faq-section {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-5) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
  transition: color var(--transition-fast);
}

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

.faq-question svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.faq-item.is-open .faq-question svg {
  transform: rotate(180deg);
}

.faq-answer {
  display: none;
  padding-bottom: var(--space-5);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

.faq-item.is-open .faq-answer {
  display: block;
}

/* FAQ Details (native HTML5 collapsible) */
.faq-details {
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 0;
}

.faq-details summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) 0;
  font-family: var(--font-family-heading);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  list-style: none;
  transition: color var(--transition-fast);
}

.faq-details summary::-webkit-details-marker {
  display: none;
}

.faq-details summary::after {
  content: '+';
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-normal);
  color: var(--color-primary);
  transition: transform var(--transition-fast);
}

.faq-details[open] summary::after {
  content: '−';
}

.faq-details summary:hover {
  color: var(--color-primary);
}

.faq-details-content {
  padding-bottom: var(--space-5);
  color: var(--color-text);
  line-height: var(--line-height-relaxed);
}

.faq-details-content p {
  margin-bottom: var(--space-3);
}

.faq-details-content p:last-child {
  margin-bottom: 0;
}

.faq-details-content ul,
.faq-details-content ol {
  margin-bottom: var(--space-3);
  padding-left: var(--space-5);
}

.faq-details-content li {
  margin-bottom: var(--space-2);
}

/* SEO Content Section */
.seo-content {
  max-width: var(--max-width-narrow);
  margin: 0 auto;
  padding: var(--space-8) 0;
}

.seo-content h2 {
  margin-bottom: var(--space-4);
}

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

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

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

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

/* --------------------------------------------
   Read More / Expandable Content
   -------------------------------------------- */
.read-more-content {
  position: relative;
}

.read-more-content.is-collapsed .read-more-text {
  max-height: 400px;
  overflow: hidden;
}

.read-more-content.is-collapsed .read-more-text::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 100px;
  background: linear-gradient(transparent, var(--color-bg));
  pointer-events: none;
}

.read-more-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-top: var(--space-4);
  color: var(--color-primary);
  font-weight: var(--font-weight-medium);
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.read-more-toggle:hover {
  color: var(--color-primary-dark);
}

.read-more-toggle svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.read-more-content:not(.is-collapsed) .read-more-toggle svg {
  transform: rotate(180deg);
}

/* --------------------------------------------
   Tool Detail Page
   -------------------------------------------- */
.tool-hero {
  background-color: var(--color-bg-alt);
  padding: var(--space-12) 0;
}

.tool-hero-content {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-8);
  align-items: center;
}

.tool-logo {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  background-color: var(--color-bg);
  padding: var(--space-3);
}

.tool-hero-info h1 {
  margin-bottom: var(--space-2);
}

.tool-hero-tagline {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
}

.tool-hero-actions {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

@media (max-width: 768px) {
  .tool-hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .tool-logo {
    margin: 0 auto;
  }

  .tool-hero-actions {
    flex-direction: row;
    justify-content: center;
  }
}

.tool-content {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--space-12);
  padding: var(--space-12) 0;
}

.tool-main {
  min-width: 0;
}

.tool-sidebar {
  position: sticky;
  top: calc(var(--header-height) + var(--space-6));
  align-self: start;
}

@media (max-width: 1024px) {
  .tool-content {
    grid-template-columns: 1fr;
  }

  .tool-sidebar {
    position: static;
  }
}

.tool-section {
  margin-bottom: var(--space-12);
}

.tool-section h2 {
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-4);
  border-bottom: 2px solid var(--color-border);
}

/* Sidebar Info Box */
.info-box {
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.info-box h3 {
  font-size: var(--font-size-lg);
  margin-bottom: var(--space-4);
}

.info-box-item {
  display: flex;
  justify-content: space-between;
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
}

.info-box-item:last-child {
  border-bottom: none;
}

.info-box-label {
  color: var(--color-text-light);
}

.info-box-value {
  font-weight: var(--font-weight-medium);
  text-align: right;
}

/* Alternatives Grid */
.alternatives-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .alternatives-grid {
    grid-template-columns: 1fr;
  }
}

/* Sticky CTA (Mobile) */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4);
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  z-index: 50;
}

.sticky-cta .btn {
  width: 100%;
}

@media (max-width: 768px) {
  .sticky-cta {
    display: block;
  }

  main {
    padding-bottom: 80px;
  }
}

/* --------------------------------------------
   Category Page
   -------------------------------------------- */
.category-hero {
  background-color: var(--color-bg-alt);
  padding: var(--space-12) 0;
}

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

.category-intro {
  max-width: var(--max-width-narrow);
  color: var(--color-text);
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6);
}

@media (max-width: 768px) {
  .tools-grid {
    grid-template-columns: 1fr;
  }
}

/* How We Choose Section */
.how-we-choose {
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin: var(--space-12) 0;
}

.how-we-choose h2 {
  margin-bottom: var(--space-6);
}

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

.how-we-choose li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.how-we-choose li svg {
  width: 20px;
  height: 20px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

@media (max-width: 640px) {
  .how-we-choose ul {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------
   Forms
   -------------------------------------------- */
.form-group {
  margin-bottom: var(--space-6);
}

.form-label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-dark);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  margin-top: var(--space-1);
}

/* Honeypot */
.form-honey {
  position: absolute;
  left: -9999px;
}

/* --------------------------------------------
   Utility Classes
   -------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hidden {
  display: none !important;
}

.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.mb-8 { margin-bottom: var(--space-8); }

/* Ad Slot (hidden by default) */
.ad-slot {
  display: none;
  background-color: var(--color-bg-alt);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-light);
  margin: var(--space-6) 0;
}

.ad-slot.is-active {
  display: block;
}

/* Section Headers */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-8);
}

.section-header h2 {
  margin-bottom: 0;
}

.section-header a {
  font-weight: var(--font-weight-medium);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.section-header a svg {
  width: 20px;
  height: 20px;
}

/* Page Header */
.page-header {
  background-color: var(--color-bg-alt);
  padding: var(--space-6) 0;
  margin-bottom: var(--space-6);
}

.page-header h1 {
  margin-bottom: var(--space-4);
}

.page-header p {
  font-size: var(--font-size-lg);
  color: var(--color-text-light);
  max-width: var(--max-width-narrow);
}

/* Content Styles (for long-form text) */
.content h2 {
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
}

.content h3 {
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

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

.content ul, .content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
}

.content ul {
  list-style-type: disc;
}

.content ol {
  list-style-type: decimal;
}

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

.content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.content a:hover {
  color: var(--color-primary-dark);
}

/* External Link Icon */
.external-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
}

.external-link svg {
  width: 14px;
  height: 14px;
}

/* ============================================
   RESPONSIVE STYLES
   ============================================ */

/* Tablet (1024px and below) */
@media (max-width: 1024px) {
  :root {
    --font-size-4xl: 2rem;
    --font-size-3xl: 1.75rem;
    --space-16: 3rem;
    --space-12: 2.5rem;
  }

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

  .section-lg {
    padding: var(--space-16) 0;
  }

  .page-header {
    padding: var(--space-10) 0;
    margin-bottom: var(--space-10);
  }

  .hero {
    padding: var(--space-8) 0 var(--space-10);
  }

  .category-hero,
  .tool-hero {
    padding: var(--space-10) 0;
  }
}

/* Tablet Portrait & Large Mobile (768px and below) */
@media (max-width: 768px) {
  :root {
    --font-size-4xl: 1.75rem;
    --font-size-3xl: 1.5rem;
    --font-size-2xl: 1.25rem;
    --space-16: 2.5rem;
    --space-12: 2rem;
    --space-10: 1.75rem;
  }

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

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

  .page-header {
    padding: var(--space-8) 0;
    margin-bottom: var(--space-8);
  }

  .hero {
    padding: var(--space-6) 0 var(--space-8);
  }

  .hero-subtitle {
    font-size: var(--font-size-base);
  }

  .category-hero,
  .tool-hero {
    padding: var(--space-8) 0;
  }

  /* Buttons */
  .btn {
    padding: var(--space-3) var(--space-5);
  }

  .btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--font-size-base);
  }

  /* Section headers */
  .section-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  /* Cards */
  .card {
    padding: var(--space-4);
  }

  /* Category cards compact - 2 columns on tablet */
  .category-card-compact {
    padding: var(--space-3);
  }

  /* Logo on mobile */
  .logo {
    font-size: var(--font-size-base);
  }

  .logo svg {
    width: 32px;
    height: 32px;
  }

  .logo-tagline {
    display: none;
  }

  /* Tool hero responsive */
  .tool-hero-content {
    gap: var(--space-4);
  }

  .tool-logo {
    width: 64px;
    height: 64px;
  }

  /* Info box */
  .info-box {
    padding: var(--space-4);
  }

  /* How we choose */
  .how-we-choose {
    padding: var(--space-6);
  }

  /* Search bar */
  .search-bar input {
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-base);
  }

  .search-bar button {
    padding: var(--space-3) var(--space-4);
  }
}

/* Mobile (640px and below) */
@media (max-width: 640px) {
  :root {
    --font-size-4xl: 1.5rem;
    --font-size-3xl: 1.375rem;
    --font-size-2xl: 1.125rem;
    --font-size-xl: 1rem;
    --space-16: 2rem;
    --space-12: 1.75rem;
    --space-10: 1.5rem;
    --space-8: 1.25rem;
  }

  .container {
    padding: 0 var(--space-3);
  }

  h1 {
    line-height: 1.3;
  }

  /* Hero */
  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero-subtitle {
    font-size: var(--font-size-sm);
  }

  /* Section spacing */
  .section {
    padding: var(--space-8) 0;
  }

  .page-header {
    padding: var(--space-6) 0;
    margin-bottom: var(--space-6);
  }

  .category-hero,
  .tool-hero {
    padding: var(--space-6) 0;
  }

  /* Category cards - smaller on mobile */
  .category-card-compact {
    padding: var(--space-2);
  }

  .category-card-compact .category-card-icon {
    width: 32px;
    height: 32px;
  }

  .category-card-compact h3 {
    font-size: var(--font-size-xs);
  }

  /* Buttons full width on mobile */
  .btn {
    width: 100%;
    justify-content: center;
  }

  .btn + .btn {
    margin-top: var(--space-2);
  }

  /* Exception for inline button groups */
  .flex .btn,
  .tool-hero-actions .btn,
  .tool-card-actions .btn {
    width: auto;
  }

  .tool-hero-actions .btn + .btn {
    margin-top: 0;
  }

  /* Tool card actions */
  .tool-card-actions {
    flex-direction: column;
  }

  .tool-card-actions .btn {
    width: 100%;
  }

  /* Breadcrumbs scroll */
  .breadcrumbs {
    overflow-x: auto;
    white-space: nowrap;
    -webkit-overflow-scrolling: touch;
    padding-bottom: var(--space-2);
  }

  /* Tool section */
  .tool-section {
    margin-bottom: var(--space-8);
  }

  .tool-section h2 {
    margin-bottom: var(--space-4);
    padding-bottom: var(--space-3);
    font-size: var(--font-size-xl);
  }

  /* Comparison table */
  .comparison-table th,
  .comparison-table td {
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-xs);
  }

  /* FAQ */
  .faq-question {
    padding: var(--space-4) 0;
    font-size: var(--font-size-sm);
  }

  /* Forms */
  .form-input,
  .form-textarea {
    padding: var(--space-3);
    font-size: 16px; /* Prevents zoom on iOS */
  }

  /* Category intro */
  .category-intro {
    font-size: var(--font-size-base);
  }

  /* Footer compact */
  .footer {
    padding: var(--space-10) 0 var(--space-6);
  }

  .footer-grid {
    gap: var(--space-6);
    margin-bottom: var(--space-8);
  }

  .footer-brand p {
    font-size: var(--font-size-sm);
  }
}

/* Extra small mobile (480px and below) */
@media (max-width: 480px) {
  :root {
    --font-size-4xl: 1.375rem;
    --font-size-3xl: 1.25rem;
  }

  .container {
    padding: 0 var(--space-3);
  }

  /* Tool hero */
  .tool-hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .tool-hero-actions .btn {
    width: 100%;
  }

  /* Hide less important text */
  .tool-card-meta {
    gap: var(--space-2);
  }

  /* Logo minimal */
  .logo {
    gap: var(--space-2);
  }

  /* Compact category cards 2 columns always */
  .grid-5,
  .grid-4,
  .grid-3,
  .grid-2 {
    gap: var(--space-3);
  }
}

/* Touch-friendly improvements */
@media (hover: none) and (pointer: coarse) {
  /* Larger touch targets */
  .nav-mobile-links a {
    padding: var(--space-4) 0;
    min-height: 48px;
    display: flex;
    align-items: center;
  }

  .btn {
    min-height: 44px;
  }

  .faq-question {
    min-height: 48px;
  }

  /* Remove hover effects on touch */
  .card:hover {
    transform: none;
  }

  .tool-card:hover {
    transform: none;
  }

  /* Active states instead */
  .btn:active {
    transform: scale(0.98);
  }

  .card:active {
    border-color: var(--color-primary);
  }
}

/* Landscape mobile */
@media (max-width: 896px) and (orientation: landscape) {
  .hero {
    padding: var(--space-4) 0 var(--space-6);
  }

  .nav-mobile {
    padding: var(--space-4);
  }

  .nav-mobile-links {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-4);
  }

  .nav-mobile-links a {
    border-bottom: none;
    padding: var(--space-2);
  }
}

/* Print styles */
@media print {
  .header,
  .footer,
  .nav-mobile,
  .sticky-cta,
  .btn,
  .nav-toggle {
    display: none !important;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
  }

  .container {
    max-width: 100%;
    padding: 0;
  }

  a {
    color: inherit;
    text-decoration: underline;
  }

  .card {
    border: 1px solid #ccc;
    break-inside: avoid;
  }
}