/* ==========================================================================
   ListWorld — style.css
   Mobile-first, token-driven stylesheet
   ========================================================================== */

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

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

body {
  font-family: var(--font-body, 'Inter', sans-serif);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-primary);
  background-color: var(--color-background);
  overflow-x: hidden;
}

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

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

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

a:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

ul, ol { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading, 'Syne', sans-serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text-primary);
}

button { cursor: pointer; font-family: inherit; }
input, textarea, select { font-family: inherit; font-size: 1rem; }

address { font-style: normal; }

.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;
}

/* --------------------------------------------------------------------------
   2. LAYOUT UTILITIES
   -------------------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

@media (min-width: 768px) {
  .container { padding: 0 1.5rem; }
}

@media (min-width: 1024px) {
  .container { padding: 0 2rem; }
}

/* --------------------------------------------------------------------------
   3. HEADER & NAVIGATION
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--color-secondary);
  box-shadow: 0 2px 20px rgba(15,42,107,0.25);
  height: var(--header-height, 70px);
  transition: background var(--transition-base), box-shadow var(--transition-base);
}

.site-header.scrolled {
  background: hsl(222, 72%, 18%);
  box-shadow: 0 4px 24px rgba(15,42,107,0.40);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1rem;
  position: relative;
}

/* Logo */
.site-logo, .footer-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--color-accent);
  display: flex;
  align-items: center;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}

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

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  gap: 0;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background-color: #ffffff;
  margin: 2px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border-radius: 2px;
  display: block;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.hamburger:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  justify-content: flex-end;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 0.75rem;
  color: rgba(255,255,255,0.9);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: var(--radius-base);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
  color: #fff;
  background: rgba(255,255,255,0.12);
}

.nav-link:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* Dropdown */
.dropdown-caret {
  font-size: 0.65rem;
  transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-caret,
.dropdown.active .dropdown-caret {
  transform: rotate(180deg);
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 200px;
  background: var(--color-surface);
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--color-border);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  z-index: 100;
  list-style: none;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.5rem 0.75rem;
  color: var(--color-text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-surface-2);
  color: var(--color-primary);
}

/* Mobile Navigation */
@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-secondary);
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem;
    box-shadow: 0 8px 24px rgba(15,42,107,0.4);
    gap: 0.25rem;
    max-height: 80vh;
    overflow-y: auto;
  }

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

  .nav-item {
    width: 100%;
  }

  .nav-link {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-base);
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: hidden;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius-base);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, visibility 0.3s ease;
    padding: 0;
    width: 100%;
    margin-top: 0.25rem;
  }

  .dropdown.active .dropdown-menu {
    visibility: visible;
    max-height: 400px;
    padding: 0.5rem;
  }

  .dropdown-item {
    color: rgba(255,255,255,0.85);
    padding: 0.6rem 1rem;
  }

  .dropdown-item:hover {
    background: rgba(255,255,255,0.1);
    color: #fff;
  }
}

/* --------------------------------------------------------------------------
   4. BREADCRUMBS
   -------------------------------------------------------------------------- */
.breadcrumbs-bar {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
  padding: 0.6rem 0;
}

.breadcrumbs ol {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.breadcrumbs li::after {
  content: '/';
  margin-left: 0.25rem;
  color: var(--color-border);
}

.breadcrumbs li:last-child::after { display: none; }

.breadcrumbs a {
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs li:last-child a { color: var(--color-primary); font-weight: 500; }

/* --------------------------------------------------------------------------
   5. AD ZONES
   -------------------------------------------------------------------------- */
.ad-zone {
  padding: 0.75rem 0;
  text-align: center;
  overflow: hidden;
}

.ad-placeholder {
  background: var(--color-surface-2);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.ad-placeholder img {
  max-width: 100%;
  height: auto;
  margin: 0 auto;
}

.ad-label {
  color: var(--color-text-secondary);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.ad-leaderboard { display: block; }
.ad-mobile-banner { display: none; }
.ad-rectangle { display: block; }

@media (max-width: 767px) {
  .ad-leaderboard { display: none; }
  .ad-mobile-banner { display: block; }
}

/* --------------------------------------------------------------------------
   6. BUTTONS
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  text-decoration: none;
  transition: background var(--transition-base), color var(--transition-base),
              border-color var(--transition-base), transform var(--transition-fast),
              box-shadow var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1;
}

.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-base); }
.btn:active { transform: translateY(0); }

.btn:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
}

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

.btn-accent {
  background: var(--color-accent);
  color: var(--color-secondary);
  border-color: var(--color-accent);
  font-weight: 700;
}
.btn-accent:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-secondary);
}

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

.btn-outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  color: #fff;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
}

.btn-full {
  width: 100%;
  justify-content: center;
}

/* --------------------------------------------------------------------------
   7. SECTION HEADERS
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-accent);
  background: hsl(38, 92%, 95%);
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.75rem;
}

.section-label--light {
  background: rgba(245,158,11,0.15);
  color: var(--color-accent);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
  line-height: 1.15;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.6;
}

.section-cta {
  text-align: center;
  margin-top: 2.5rem;
}

/* --------------------------------------------------------------------------
   8. HERO SECTION
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 85vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.05);
  transition: transform 8s ease;
}

.hero:hover .hero-bg {
  transform: scale(1.0);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
  opacity: 0.88;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 5rem 0 4rem;
  max-width: 750px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245,158,11,0.2);
  border: 1px solid rgba(245,158,11,0.4);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1.25rem;
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  letter-spacing: -0.03em;
}

.hero-accent { color: var(--color-accent); }

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.82);
  margin-bottom: 2rem;
  max-width: 580px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero-stat-num {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.hero-stat-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.2);
}

.hero-scroll-cue {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.6);
  font-size: 1.2rem;
  z-index: 2;
  animation: bounce 2s infinite;
  padding: 0.5rem;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* --------------------------------------------------------------------------
   9. FEATURES SECTION
   -------------------------------------------------------------------------- */
.features-section {
  padding: 5rem 0;
  background: var(--color-surface);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--color-background);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  text-align: center;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.feature-icon {
  width: 64px;
  height: 64px;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 1.5rem;
  color: #fff;
  box-shadow: 0 4px 16px rgba(27,79,216,0.25);
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   10. CATEGORIES SECTION
   -------------------------------------------------------------------------- */
.categories-section {
  padding: 5rem 0;
  background: var(--color-background);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.category-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  text-decoration: none;
  display: block;
  transition: transform var(--transition-base), box-shadow var(--transition-base),
              border-color var(--transition-base);
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  transform: scaleX(0);
  transition: transform var(--transition-base);
  transform-origin: left;
}

.category-card:hover::before { transform: scaleX(1); }
.category-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.category-icon {
  width: 52px;
  height: 52px;
  background: hsl(222, 79%, 95%);
  color: var(--color-primary);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  margin-bottom: 1rem;
  transition: background var(--transition-base), color var(--transition-base);
}

.category-card:hover .category-icon {
  background: var(--color-primary);
  color: #fff;
}

.category-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.category-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.category-cta {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* --------------------------------------------------------------------------
   11. ARTICLE CARDS
   -------------------------------------------------------------------------- */
.latest-section {
  padding: 5rem 0;
  background: var(--color-surface);
}

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.articles-grid-ad {
  grid-column: 1 / -1;
  display: flex;
  justify-content: center;
}

.article-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.article-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.article-card-image {
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--color-surface-2);
  flex-shrink: 0;
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.article-card:hover .article-card-image img {
  transform: scale(1.04);
}

.article-card-image--placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-primary);
  background: hsl(222, 79%, 95%);
}

.article-card-body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.5rem;
}

.article-category {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-primary);
  background: hsl(222, 79%, 95%);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-full);
  width: fit-content;
}

.article-card-title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.35;
  margin-top: 0.25rem;
}

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

.article-card-title a:hover { color: var(--color-primary); }

.article-card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--color-text-secondary);
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--color-border);
}

.article-meta time,
.article-meta span {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.article-card-link {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast), color var(--transition-fast);
  margin-top: 0.5rem;
}

.article-card-link:hover {
  color: var(--color-primary-hover);
  gap: 0.65rem;
}

/* --------------------------------------------------------------------------
   12. TOP RANKINGS SECTION
   -------------------------------------------------------------------------- */
.rankings-section {
  padding: 5rem 0;
  background: var(--gradient-primary);
  color: #fff;
}

.rankings-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
}

@media (min-width: 768px) {
  .rankings-inner {
    grid-template-columns: 1fr 1fr;
  }
}

.rankings-text .section-title {
  color: #fff;
}

.rankings-text p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.rankings-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.rank-item {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  text-align: center;
  transition: background var(--transition-base);
}

.rank-item:hover { background: rgba(255,255,255,0.18); }

.rank-item--1 {
  grid-column: 1 / -1;
  background: rgba(245,158,11,0.2);
  border-color: rgba(245,158,11,0.4);
}

.rank-num {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
}

.rank-item--1 .rank-num { font-size: 2.5rem; }

.rank-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: rgba(255,255,255,0.75);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* --------------------------------------------------------------------------
   13. CTA / NEWSLETTER SECTION
   -------------------------------------------------------------------------- */
.cta-section {
  padding: 5rem 0;
  background: var(--color-background);
}

.cta-inner {
  max-width: 620px;
  margin: 0 auto;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-base);
}

.cta-icon {
  font-size: 3rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.cta-title {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.cta-subtitle {
  color: var(--color-text-secondary);
  margin-bottom: 1.75rem;
  line-height: 1.6;
}

.cta-form-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.cta-input {
  flex: 1;
  min-width: 200px;
  padding: 0.75rem 1.25rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  background: var(--color-background);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px hsl(222,79%,47%,0.15);
}

.cta-note {
  font-size: 0.8rem;
  color: var(--color-text-secondary);
  margin-top: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}

/* --------------------------------------------------------------------------
   14. PAGE LAYOUT (page.html)
   -------------------------------------------------------------------------- */
.page-wrapper {
  padding: 3rem 0 4rem;
  min-height: 60vh;
}

.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
}

.page-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  color: var(--color-text-primary);
  margin-bottom: 0.5rem;
}

.page-description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 700px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .page-layout {
    grid-template-columns: 1fr 300px;
    gap: 3rem;
  }
}

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

/* Page body content typography */
.page-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2rem 0 0.75rem;
  color: var(--color-text-primary);
}

.page-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
}

.page-body p {
  margin-bottom: 1rem;
  color: var(--color-text-primary);
  line-height: 1.75;
}

.page-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-body ul, .page-body ol {
  margin: 1rem 0 1rem 1.5rem;
  list-style: disc;
}

.page-body ol { list-style: decimal; }

.page-body li {
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
  line-height: 1.65;
}

.page-body img {
  border-radius: var(--radius-lg);
  margin: 1.5rem 0;
}

.page-body address {
  font-style: normal;
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  padding: 1rem 1.25rem;
  margin: 1rem 0;
  line-height: 1.8;
}

.page-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* --------------------------------------------------------------------------
   15. SIDEBAR WIDGETS
   -------------------------------------------------------------------------- */
.sidebar-sticky {
  position: sticky;
  top: calc(var(--header-height) + 1rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.25rem 1.5rem;
}

.sidebar-widget-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 1.2px;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sidebar-widget-title i { color: var(--color-primary); }

.sidebar-category-list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar-category-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-base);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}

.sidebar-category-link:hover {
  background: var(--color-surface-2);
  color: var(--color-primary);
}

.sidebar-category-link i { color: var(--color-text-secondary); font-size: 0.7rem; }

.sidebar-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.sidebar-links a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-base);
  color: var(--color-text-primary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
  text-decoration: none;
}

.sidebar-links a:hover {
  background: var(--color-surface-2);
  color: var(--color-primary);
}

.sidebar-links a i { color: var(--color-primary); font-size: 0.85rem; width: 16px; text-align: center; }

.sidebar-widget--contact p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   16. ARTICLE SINGLE (article.html)
   -------------------------------------------------------------------------- */
.article-single {
  padding: 2.5rem 0 4rem;
  min-height: 60vh;
}

.article-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 1024px) {
  .article-layout {
    grid-template-columns: 1fr 300px;
    gap: 3rem;
  }
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-border);
}

.article-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--color-text-primary);
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.article-lead {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.article-ad-top { margin-bottom: 1.5rem; }

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

.article-body {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-primary);
}

.article-body h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin: 2.5rem 0 0.75rem;
  color: var(--color-text-primary);
  padding-top: 0.5rem;
  border-top: 2px solid var(--color-border);
}

.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.75rem 0 0.5rem;
}

.article-body p { margin-bottom: 1.2rem; }

.article-body a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.article-body ul, .article-body ol {
  margin: 1rem 0 1.5rem 1.5rem;
  list-style: disc;
}

.article-body ol { list-style: decimal; }

.article-body li {
  margin-bottom: 0.5rem;
  line-height: 1.7;
}

.article-body img {
  border-radius: var(--radius-lg);
  margin: 1.5rem 0;
  box-shadow: var(--shadow-base);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9rem;
}

.article-body th, .article-body td {
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  text-align: left;
}

.article-body th {
  background: var(--color-surface-2);
  font-weight: 700;
  color: var(--color-text-primary);
}

.article-body tr:nth-child(even) td {
  background: hsl(220,50%,98%);
}

.article-body blockquote {
  border-left: 4px solid var(--color-primary);
  background: var(--color-surface-2);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  font-style: italic;
  color: var(--color-text-secondary);
}

.article-sidebar { }

/* Article Navigation */
.article-nav {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.article-nav-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.article-nav-btn:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-sm);
}

/* --------------------------------------------------------------------------
   17. ARTICLES LISTING (articles.html)
   -------------------------------------------------------------------------- */
.articles-wrapper {
  padding: 3rem 0 4rem;
  min-height: 60vh;
}

.articles-header {
  margin-bottom: 2rem;
}

.articles-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.articles-description {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 700px;
}

/* Category Filters */
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
}

.filter-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: hsl(222,79%,97%);
}

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

/* No Articles */
.no-articles {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--color-text-secondary);
}

.no-articles-icon {
  font-size: 4rem;
  color: var(--color-border);
  margin-bottom: 1rem;
}

.no-articles h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text-primary);
}

.no-articles p {
  margin-bottom: 1.5rem;
  font-size: 1rem;
}

/* Pagination */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
}

.pagination-pages {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.page-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-base);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
}

.page-num:hover {
  background: var(--color-surface-2);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.page-num.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.pagination-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
}

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

/* --------------------------------------------------------------------------
   18. ERROR PAGE
   -------------------------------------------------------------------------- */
.error-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding: 4rem 0;
}

.error-bg {
  position: absolute;
  inset: 0;
  background: var(--gradient-surface);
  z-index: 0;
}

.error-inner {
  position: relative;
  z-index: 2;
}

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

.error-icon {
  font-size: 4rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
  opacity: 0.6;
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 15vw, 9rem);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
  opacity: 0.15;
  margin-bottom: -1rem;
  letter-spacing: -0.05em;
}

.error-title {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--color-text-primary);
}

.error-message {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.error-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.error-links p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.75rem;
}

.error-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.error-category-pill {
  padding: 0.4rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-primary);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast),
              border-color var(--transition-fast);
}

.error-category-pill:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.error-decoration {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-around;
  pointer-events: none;
  overflow: hidden;
}

.error-decoration span {
  font-family: var(--font-heading);
  font-size: clamp(6rem, 20vw, 14rem);
  font-weight: 800;
  color: var(--color-primary);
  opacity: 0.03;
  user-select: none;
}

/* --------------------------------------------------------------------------
   19. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-secondary);
  color: rgba(255,255,255,0.85);
  padding: 4rem 0 0;
}

.footer-inner { }

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  padding-bottom: 3rem;
}

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

@media (min-width: 1024px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
}

.footer-brand .footer-logo {
  margin-bottom: 1rem;
}

.footer-brand .logo-text { color: #fff; }

.footer-tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.65);
  margin-bottom: 1.25rem;
  line-height: 1.5;
  max-width: 260px;
}

.footer-address {
  font-size: 0.825rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.8;
}

.footer-email {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
  display: block;
  margin-top: 0.25rem;
}

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

.footer-heading {
  font-size: 0.8rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover { color: #fff; }
.footer-links a i { color: var(--color-accent); font-size: 0.75rem; width: 14px; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 1.25rem 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.45);
}

.footer-powered {
  font-size: 0.75rem;
}

/* --------------------------------------------------------------------------
   20. ABOUT PAGE STYLES
   -------------------------------------------------------------------------- */
.about-intro, .about-mission, .about-categories, .about-contact {
  margin-bottom: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
}

.about-intro:last-child,
.about-mission:last-child,
.about-categories:last-child,
.about-contact:last-child {
  border-bottom: none;
}

.about-hero-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .about-hero-row { grid-template-columns: 1fr 1fr; }
}

.about-hero-text .section-label { margin-bottom: 0.5rem; }

.about-hero-text h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-bottom: 1rem;
}

.about-hero-text p {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.about-hero-image img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  height: auto;
}

.about-mission h2, .about-categories h2, .about-contact h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.about-mission h2 i, .about-categories h2 i, .about-contact h2 i {
  color: var(--color-primary);
}

.about-mission > p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-bottom: 1.75rem;
}

.about-values-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.25rem;
}

.about-value-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.25rem;
  text-align: center;
}

.about-value-icon {
  font-size: 2rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.about-value-card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

.about-value-card p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

.about-category-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  list-style: none;
}

.about-category-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.95rem;
  color: var(--color-text-primary);
  line-height: 1.5;
}

.about-category-list i {
  color: var(--color-primary);
  font-size: 1.1rem;
  margin-top: 0.15rem;
  flex-shrink: 0;
  width: 20px;
}

.about-contact a { color: var(--color-primary); }

.about-contact address {
  background: var(--color-surface-2);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  padding: 1rem 1.25rem;
  margin-top: 1rem;
  line-height: 1.8;
  font-size: 0.9rem;
}

/* --------------------------------------------------------------------------
   21. CONTACT PAGE STYLES
   -------------------------------------------------------------------------- */
.contact-intro {
  margin-bottom: 2rem;
}

.contact-lead {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 700px;
}

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

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .contact-layout { grid-template-columns: 1fr 1fr; }
}

.contact-form-wrapper h2,
.contact-info-wrapper h2 {
  font-size: 1.35rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.contact-form-wrapper h2 i,
.contact-info-wrapper h2 i {
  color: var(--color-primary);
}

/* Forms */
.contact-form, .cta-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.required { color: var(--color-accent); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: 0.95rem;
  background: var(--color-background);
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,79,216,0.12);
}

.form-group textarea { resize: vertical; min-height: 140px; }

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M6 8L1 3h10z' fill='%231E293B'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* Contact Info */
.contact-info-block {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-info-block:last-child { border-bottom: none; }

.contact-info-icon {
  width: 42px;
  height: 42px;
  background: hsl(222,79%,95%);
  color: var(--color-primary);
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}

.contact-info-block h3 {
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.contact-info-block p,
.contact-info-block address {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.contact-info-block a {
  color: var(--color-primary);
  text-decoration: none;
}

.contact-info-block a:hover { text-decoration: underline; }

/* --------------------------------------------------------------------------
   22. SCROLL ANIMATIONS
   -------------------------------------------------------------------------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   23. BACK TO TOP
   -------------------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 46px;
  height: 46px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  box-shadow: var(--shadow-base);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition-base), visibility var(--transition-base),
              transform var(--transition-base), background var(--transition-fast);
  z-index: 999;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  background: var(--color-primary-hover);
  transform: translateY(-3px);
}

.back-to-top:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
}

/* --------------------------------------------------------------------------
   24. HONEYPOT
   -------------------------------------------------------------------------- */
.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   25. PRINT STYLES
   -------------------------------------------------------------------------- */
@media print {
  .ad-zone,
  .hamburger,
  .site-header,
  .back-to-top,
  .article-nav,
  .pagination,
  .cta-section,
  .site-footer { display: none !important; }

  body { color: #000; background: #fff; }
  a { color: #000; text-decoration: underline; }
  .article-body { max-width: 100%; }
}

/* --------------------------------------------------------------------------
   26. UTILITY — RESPONSIVE HELPERS
   -------------------------------------------------------------------------- */
@media (max-width: 767px) {
  .hero { min-height: 70vh; }
  .hero-content { padding: 4rem 0 3rem; }
  .hero-stat-divider { display: none; }
  .hero-stats { gap: 1rem; }
  .rankings-section { padding: 3.5rem 0; }
  .rankings-visual { grid-template-columns: 1fr 1fr; }
  .cta-inner { padding: 2rem 1.25rem; }
  .article-nav { flex-direction: column; }
  .article-nav-btn { width: 100%; justify-content: center; }
  .footer-grid { gap: 1.5rem; }
  .back-to-top { bottom: 1.25rem; right: 1.25rem; }
  .articles-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .categories-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .features-grid { grid-template-columns: 1fr; }
  .categories-grid { grid-template-columns: 1fr; }
}

@media (min-width: 768px) {
  .articles-grid { grid-template-columns: repeat(2, 1fr); }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .articles-grid { grid-template-columns: repeat(3, 1fr); }
  .features-grid { grid-template-columns: repeat(4, 1fr); }
  .categories-grid { grid-template-columns: repeat(3, 1fr); }
}