/* ================================================================
   DiscVault — style.css
   Physical Media Collecting & Home Cinema Guide
   ================================================================ */

/* ----------------------------------------------------------------
   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);
  font-weight: 400;
  line-height: 1.7;
  color: hsl(var(--color-text-primary));
  background-color: hsl(var(--color-background));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

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

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

a:hover {
  color: hsl(var(--color-accent-hover));
}

a:focus-visible {
  outline: 3px solid hsl(var(--color-focus-ring));
  outline-offset: 3px;
  border-radius: 2px;
}

ul, ol {
  list-style: none;
}

address {
  font-style: normal;
}

/* ----------------------------------------------------------------
   2. LAYOUT UTILITIES
   ---------------------------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header--spaced {
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: hsl(var(--color-primary));
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.2;
}

.section-subtitle {
  font-size: 1.0625rem;
  color: hsl(var(--color-text-secondary));
  margin-top: 0.625rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

.section-link {
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.9375rem;
  color: hsl(var(--color-accent));
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  white-space: nowrap;
  transition: gap var(--transition-base);
}

.section-link:hover {
  gap: 0.625rem;
}

.section-cta-row {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 2.5rem;
  flex-wrap: wrap;
}

/* ----------------------------------------------------------------
   3. BUTTONS
   ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.375rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius-base);
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base), border-color var(--transition-base), transform var(--transition-fast), box-shadow var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn:active {
  transform: scale(0.98);
}

.btn-lg {
  padding: 0.8125rem 1.875rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.375rem 0.875rem;
  font-size: 0.8125rem;
}

.btn-primary {
  background-color: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  border-color: hsl(var(--color-primary));
}
.btn-primary:hover {
  background-color: hsl(var(--color-primary-hover));
  border-color: hsl(var(--color-primary-hover));
  color: hsl(var(--color-text-light));
  box-shadow: var(--shadow-base);
}

.btn-secondary {
  background-color: hsl(var(--color-secondary));
  color: hsl(var(--color-text-light));
  border-color: hsl(var(--color-secondary));
}
.btn-secondary:hover {
  background-color: hsl(var(--color-secondary-hover));
  border-color: hsl(var(--color-secondary-hover));
  color: hsl(var(--color-text-light));
  box-shadow: var(--shadow-base);
}

.btn-accent {
  background-color: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
  border-color: hsl(var(--color-accent));
}
.btn-accent:hover {
  background-color: hsl(var(--color-accent-hover));
  border-color: hsl(var(--color-accent-hover));
  color: hsl(var(--color-primary));
  box-shadow: var(--shadow-base);
}

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

.btn-outline-light {
  background-color: transparent;
  color: hsl(var(--color-text-light));
  border-color: rgba(255,255,255,0.7);
}
.btn-outline-light:hover {
  background-color: rgba(255,255,255,0.15);
  color: hsl(var(--color-text-light));
  border-color: rgba(255,255,255,1);
}

/* ----------------------------------------------------------------
   4. HEADER & NAVIGATION
   ---------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--gradient-primary);
  box-shadow: 0 2px 12px hsla(220,26%,5%,0.35);
  transition: box-shadow var(--transition-base);
}

.site-header.scrolled {
  box-shadow: 0 4px 24px hsla(220,26%,5%,0.5);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 1rem;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
  border-radius: 50%;
  font-size: 1.125rem;
  transition: transform var(--transition-base);
}

.site-logo:hover .logo-icon {
  transform: rotate(30deg);
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: hsl(var(--color-text-light));
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

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

/* Navigation */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.3125rem;
  padding: 0.5rem 0.75rem;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.88);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  color: hsl(var(--color-accent));
  background-color: rgba(255,255,255,0.08);
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-toggle {
  cursor: pointer;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: calc(100% + 0.375rem);
  left: 0;
  min-width: 200px;
  background: hsl(var(--color-secondary));
  border-radius: var(--radius-base);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  z-index: 200;
  list-style: none;
  border: 1px solid rgba(255,255,255,0.1);
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: flex;
  flex-direction: column;
}

.dropdown-item {
  display: block;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.85);
  border-radius: var(--radius-sm);
  transition: background-color var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.dropdown-item:hover {
  background-color: rgba(255,255,255,0.12);
  color: hsl(var(--color-accent));
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
  border-radius: var(--radius-sm);
}

.hamburger:focus-visible {
  outline: 3px solid hsl(var(--color-focus-ring));
  outline-offset: 2px;
}

.hamburger-line {
  width: 25px;
  height: 3px;
  background-color: hsl(var(--color-text-light));
  margin: 2.5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
  border-radius: 2px;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5.5px, 5.5px);
}
.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.hamburger.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5.5px, -5.5px);
}

/* ----------------------------------------------------------------
   5. BREADCRUMBS
   ---------------------------------------------------------------- */
.breadcrumbs-bar {
  background-color: hsl(var(--color-primary));
  padding: 0.625rem 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.breadcrumbs {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  list-style: none;
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.55);
}

.breadcrumbs li::before {
  content: '/';
  margin-right: 0.25rem;
  color: rgba(255,255,255,0.3);
}

.breadcrumbs li:first-child::before {
  display: none;
}

.breadcrumbs a {
  color: rgba(255,255,255,0.75);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

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

.ad-prefooter {
  background-color: hsl(var(--color-background));
  border-top: 1px solid hsl(var(--color-border));
  border-bottom: 1px solid hsl(var(--color-border));
  padding: 1rem 0;
  margin-top: 2rem;
}

.ad-placeholder {
  background: hsl(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;
  object-fit: cover;
}

.ad-label {
  color: hsl(var(--color-text-secondary));
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.ad-leaderboard {
  display: block;
}

.ad-mobile-banner {
  display: none;
}

.ad-rectangle-center {
  padding: 2rem 0;
}

/* ----------------------------------------------------------------
   7. HERO
   ---------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 560px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: scale(1.04);
  transition: transform 8s ease;
}

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

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

.hero-content {
  position: relative;
  z-index: 2;
  padding: 4rem 1.25rem;
  color: hsl(var(--color-text-light));
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(232, 160, 32, 0.18);
  border: 1px solid hsl(var(--color-accent));
  color: hsl(var(--color-accent));
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.375rem 0.875rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.75rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
  max-width: 700px;
}

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

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.1875rem);
  color: rgba(255,255,255,0.82);
  max-width: 560px;
  margin-bottom: 2rem;
  line-height: 1.65;
}

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

.hero-stats {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.hero-stat {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.72);
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero-stat i {
  color: hsl(var(--color-accent));
  font-size: 1rem;
}

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

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.75rem;
}

.feature-card {
  background: hsl(var(--color-background));
  border: 1px solid hsl(var(--color-border));
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  border-top: 3px solid transparent;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-base);
  border-top-color: hsl(var(--color-accent));
}

.feature-icon {
  width: 52px;
  height: 52px;
  background: hsl(var(--color-primary));
  color: hsl(var(--color-accent));
  border-radius: var(--radius-base);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: 1.125rem;
  transition: background-color var(--transition-base), transform var(--transition-base);
}

.feature-card:hover .feature-icon {
  background-color: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
  transform: rotate(-6deg);
}

.feature-card h3 {
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: hsl(var(--color-primary));
  margin-bottom: 0.625rem;
}

.feature-card p {
  font-size: 0.9375rem;
  color: hsl(var(--color-text-secondary));
  line-height: 1.65;
}

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

.articles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.75rem;
}

.articles-grid--home {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.article-card {
  background: hsl(var(--color-surface));
  border: 1px solid hsl(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(-4px);
  box-shadow: var(--shadow-base);
}

.article-card--ad {
  align-items: center;
  justify-content: center;
  border: 1px dashed hsl(var(--color-border));
  background: transparent;
}

.article-card--ad:hover {
  transform: none;
  box-shadow: none;
}

.article-card-image-link {
  display: block;
  overflow: hidden;
}

.article-card-image {
  overflow: hidden;
  aspect-ratio: 16/9;
  background: hsl(var(--color-border));
}

.article-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.article-card:hover .article-card-image img {
  transform: scale(1.05);
}

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

.article-category {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: hsl(var(--color-accent));
  background: rgba(232,160,32,0.1);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  text-decoration: none;
  transition: background-color var(--transition-fast);
  align-self: flex-start;
}

.article-category:hover {
  background: rgba(232,160,32,0.2);
  color: hsl(var(--color-accent));
}

.article-card-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.3;
  color: hsl(var(--color-primary));
  margin: 0;
}

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

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

.article-card-excerpt {
  font-size: 0.9rem;
  color: hsl(var(--color-text-secondary));
  line-height: 1.6;
  flex: 1;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: hsl(var(--color-text-secondary));
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 0.625rem;
  border-top: 1px solid hsl(var(--color-border));
}

.article-date,
.article-read-time {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
}

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

.categories-section .section-title {
  color: hsl(var(--color-text-light));
}

.categories-section .section-subtitle {
  color: rgba(255,255,255,0.65);
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.25rem;
}

.category-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 1.625rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  text-decoration: none;
  transition: background-color var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}

.category-card:hover {
  background: rgba(255,255,255,0.12);
  border-color: hsl(var(--color-accent));
  transform: translateY(-3px);
  color: inherit;
}

.category-card-icon {
  font-size: 1.5rem;
  color: hsl(var(--color-accent));
}

.category-card-name {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: hsl(var(--color-text-light));
}

.category-card-desc {
  font-size: 0.84375rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.55;
  flex: 1;
}

.category-card-cta {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: hsl(var(--color-accent));
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 0.25rem;
}

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

.cta-box {
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  padding: 3rem 2.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  align-items: center;
  box-shadow: var(--shadow-lg);
}

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

.cta-icon {
  font-size: 2.5rem;
  color: hsl(var(--color-accent));
  margin-bottom: 1rem;
  display: block;
  animation: spin 10s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.cta-content h2 {
  font-family: var(--font-heading);
  font-size: 2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-text-light));
  margin-bottom: 0.75rem;
}

.cta-content p {
  font-size: 1rem;
  color: rgba(255,255,255,0.78);
  max-width: 480px;
  margin-bottom: 1.75rem;
  line-height: 1.7;
}

.cta-links h3 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: hsl(var(--color-accent));
  margin-bottom: 1rem;
}

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

.cta-links a {
  color: rgba(255,255,255,0.82);
  font-size: 0.9375rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: color var(--transition-fast), gap var(--transition-fast);
}

.cta-links a:hover {
  color: hsl(var(--color-accent));
  gap: 0.625rem;
}

/* ----------------------------------------------------------------
   12. PAGE LAYOUT (Generic Page)
   ---------------------------------------------------------------- */
.page-wrapper {
  padding: 3rem 0 5rem;
}

.page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 3px solid hsl(var(--color-accent));
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  line-height: 1.15;
}

.page-description {
  font-size: 1.0625rem;
  color: hsl(var(--color-text-secondary));
  margin-top: 0.625rem;
  max-width: 600px;
}

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

.page-body {
  min-width: 0;
  /* Rich text content styles */
}

.page-body h2 {
  font-family: var(--font-heading);
  font-size: 1.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  margin: 2.25rem 0 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid hsl(var(--color-accent));
  display: inline-block;
}

.page-body h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: hsl(var(--color-secondary));
  margin: 1.75rem 0 0.625rem;
  letter-spacing: 0.02em;
}

.page-body p {
  margin-bottom: 1.125rem;
  color: hsl(var(--color-text-primary));
}

.page-body ul,
.page-body ol {
  margin: 1rem 0 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4375rem;
}

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

.page-body li {
  color: hsl(var(--color-text-primary));
  font-size: 0.9875rem;
}

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

.page-body a:hover {
  color: hsl(var(--color-accent-hover));
}

.page-body strong {
  font-weight: 700;
  color: hsl(var(--color-primary));
}

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

.page-body blockquote {
  border-left: 4px solid hsl(var(--color-accent));
  background: hsl(var(--color-background));
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  font-style: italic;
  color: hsl(var(--color-text-secondary));
}

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

/* ----------------------------------------------------------------
   13. ARTICLE — SINGLE
   ---------------------------------------------------------------- */
.article-single-wrapper {
  padding: 3rem 0 5rem;
  background: hsl(var(--color-background));
}

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

.article-single {
  min-width: 0;
  background: hsl(var(--color-surface));
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-header {
  padding: 2.5rem 2.5rem 2rem;
  border-bottom: 1px solid hsl(var(--color-border));
}

.article-category-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: hsl(var(--color-accent));
  background: rgba(232,160,32,0.1);
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  margin-bottom: 1rem;
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.article-category-badge:hover {
  background: rgba(232,160,32,0.22);
}

.article-title {
  font-family: var(--font-heading);
  font-size: clamp(1.625rem, 4vw, 2.5rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.15;
  color: hsl(var(--color-primary));
  margin-bottom: 0.875rem;
}

.article-deck {
  font-size: 1.0625rem;
  color: hsl(var(--color-text-secondary));
  font-style: italic;
  margin-bottom: 1rem;
  line-height: 1.6;
}

.article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.84375rem;
  color: hsl(var(--color-text-secondary));
  flex-wrap: wrap;
}

.article-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
}

.article-meta-item i {
  color: hsl(var(--color-accent));
}

.article-body {
  padding: 2.5rem;
  font-size: 1.0125rem;
  line-height: 1.8;
  color: hsl(var(--color-text-primary));
}

.article-body h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  margin: 2rem 0 0.875rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid hsl(var(--color-accent));
  display: inline-block;
}

.article-body h3 {
  font-family: var(--font-heading);
  font-size: 1.1875rem;
  font-weight: 600;
  color: hsl(var(--color-secondary));
  margin: 1.5rem 0 0.5rem;
}

.article-body p { margin-bottom: 1.125rem; }

.article-body ul,
.article-body ol {
  margin: 1rem 0 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

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

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

.article-body a:hover { color: hsl(var(--color-accent-hover)); }

.article-body strong {
  font-weight: 700;
  color: hsl(var(--color-primary));
}

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

.article-body blockquote {
  border-left: 4px solid hsl(var(--color-accent));
  background: hsl(var(--color-background));
  padding: 1.125rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  font-style: italic;
  color: hsl(var(--color-text-secondary));
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.9375rem;
}

.article-body th {
  background: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  padding: 0.75rem 1rem;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.8125rem;
}

.article-body td {
  padding: 0.625rem 1rem;
  border-bottom: 1px solid hsl(var(--color-border));
  color: hsl(var(--color-text-primary));
}

.article-body tr:nth-child(even) td {
  background: hsl(var(--color-background));
}

/* Article Nav (Prev/Next) */
.article-nav {
  padding: 1.5rem 2.5rem;
  border-top: 1px solid hsl(var(--color-border));
  background: hsl(var(--color-background));
}

.article-nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.article-nav-prev,
.article-nav-next {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: hsl(var(--color-text-secondary));
}

.article-nav-label { font-size: 0.8125rem; }

.article-nav-back {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.5rem 1.125rem;
  border-radius: var(--radius-base);
  transition: background-color var(--transition-fast);
  text-decoration: none;
}

.article-nav-back:hover {
  background: hsl(var(--color-secondary));
  color: hsl(var(--color-text-light));
}

/* Article Sidebar */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ----------------------------------------------------------------
   14. ARTICLES LISTING
   ---------------------------------------------------------------- */
.articles-wrapper {
  padding: 3rem 0 5rem;
}

.articles-page-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 3px solid hsl(var(--color-accent));
}

.articles-page-title {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
}

.articles-page-description {
  font-size: 1.0625rem;
  color: hsl(var(--color-text-secondary));
  margin-top: 0.625rem;
}

/* Category Filters */
.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid hsl(var(--color-border));
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3125rem;
  padding: 0.4375rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: hsl(var(--color-text-secondary));
  background: hsl(var(--color-surface));
  border: 1px solid hsl(var(--color-border));
  border-radius: 999px;
  text-decoration: none;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.filter-btn:hover {
  border-color: hsl(var(--color-accent));
  color: hsl(var(--color-accent));
  background: rgba(232,160,32,0.06);
}

.filter-btn.active {
  background: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  border-color: hsl(var(--color-primary));
}

/* Articles Layout (Main + Sidebar) */
.articles-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
}

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

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

/* No Articles State */
.no-articles {
  text-align: center;
  padding: 5rem 2rem;
  background: hsl(var(--color-surface));
  border-radius: var(--radius-lg);
  border: 2px dashed hsl(var(--color-border));
}

.no-articles-icon {
  color: hsl(var(--color-accent));
  margin-bottom: 1.25rem;
  opacity: 0.6;
}

.no-articles h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  text-transform: uppercase;
  color: hsl(var(--color-primary));
  margin-bottom: 0.75rem;
}

.no-articles p {
  color: hsl(var(--color-text-secondary));
  margin-bottom: 1.75rem;
  font-size: 1.0625rem;
}

/* ----------------------------------------------------------------
   15. PAGINATION
   ---------------------------------------------------------------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.pagination-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  border-radius: var(--radius-base);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.pagination-btn:hover {
  background: hsl(var(--color-secondary));
  color: hsl(var(--color-text-light));
}

.pagination-btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.pagination-pages {
  display: flex;
  gap: 0.375rem;
}

.page-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 600;
  color: hsl(var(--color-text-secondary));
  background: hsl(var(--color-surface));
  border: 1px solid hsl(var(--color-border));
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.page-num:hover {
  border-color: hsl(var(--color-accent));
  color: hsl(var(--color-accent));
}

.page-num.active {
  background: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
  border-color: hsl(var(--color-accent));
  font-weight: 700;
}

/* ----------------------------------------------------------------
   16. SIDEBAR WIDGETS
   ---------------------------------------------------------------- */
.sidebar-widget {
  background: hsl(var(--color-surface));
  border: 1px solid hsl(var(--color-border));
  border-radius: var(--radius-lg);
  padding: 1.375rem;
  border-top: 3px solid hsl(var(--color-accent));
}

.sidebar-widget-title {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: hsl(var(--color-primary));
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

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

.sidebar-category-list {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.sidebar-category-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0.625rem;
  font-size: 0.9rem;
  color: hsl(var(--color-text-primary));
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.sidebar-category-link:hover,
.sidebar-category-link.active {
  background: rgba(232,160,32,0.08);
  color: hsl(var(--color-accent));
}

.sidebar-category-link i {
  font-size: 0.625rem;
  color: hsl(var(--color-text-secondary));
  flex-shrink: 0;
}

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

.sidebar-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  padding: 0.375rem 0.5rem;
  font-size: 0.9rem;
  color: hsl(var(--color-text-primary));
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.sidebar-links a:hover {
  color: hsl(var(--color-accent));
  background: rgba(232,160,32,0.06);
}

.sidebar-links a i {
  color: hsl(var(--color-accent));
  width: 14px;
}

.sidebar-about p {
  font-size: 0.9rem;
  color: hsl(var(--color-text-secondary));
  margin-bottom: 1rem;
  line-height: 1.6;
}

.sidebar-ad-sticky {
  position: sticky;
  top: calc(var(--header-height) + 1rem);
}

/* ----------------------------------------------------------------
   17. CONTENT SECTION (About / Generic Pages)
   ---------------------------------------------------------------- */
.content-section {
  margin-bottom: 2.5rem;
}

.content-section h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid hsl(var(--color-accent));
  display: inline-block;
}

.content-section p {
  font-size: 1rem;
  color: hsl(var(--color-text-primary));
  margin-bottom: 0.875rem;
  line-height: 1.75;
}

.content-section a {
  color: hsl(var(--color-accent));
  text-decoration: underline;
  text-underline-offset: 3px;
}

.content-section address {
  margin-top: 1rem;
  font-style: normal;
  background: hsl(var(--color-background));
  border-left: 3px solid hsl(var(--color-accent));
  padding: 1rem 1.25rem;
  border-radius: 0 var(--radius-base) var(--radius-base) 0;
  font-size: 0.9375rem;
  line-height: 1.7;
  color: hsl(var(--color-text-secondary));
}

.content-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  margin: 1rem 0 1.25rem;
}

.content-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.625rem;
  font-size: 0.9875rem;
  color: hsl(var(--color-text-primary));
  padding: 0.5rem 0;
  border-bottom: 1px solid hsl(var(--color-border));
}

/* About Features */
.about-features {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.25rem;
}

.about-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: hsl(var(--color-background));
  border: 1px solid hsl(var(--color-border));
  border-radius: var(--radius-base);
  padding: 1.25rem;
}

.about-feature-item > i {
  font-size: 1.375rem;
  color: hsl(var(--color-accent));
  flex-shrink: 0;
  margin-top: 0.1875rem;
}

.about-feature-item h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: hsl(var(--color-primary));
  margin-bottom: 0.3125rem;
}

.about-feature-item p {
  font-size: 0.9rem;
  color: hsl(var(--color-text-secondary));
  margin-bottom: 0;
  line-height: 1.6;
}

/* Contact Page */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-top: 1.5rem;
}

.contact-form-wrap h2,
.contact-info-wrap h2 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid hsl(var(--color-accent));
  display: inline-block;
}

.contact-info-item {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
  margin-bottom: 1.25rem;
}

.contact-info-item > i {
  font-size: 1.125rem;
  color: hsl(var(--color-accent));
  margin-top: 0.1875rem;
  flex-shrink: 0;
  width: 20px;
}

.contact-info-item strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: hsl(var(--color-text-secondary));
  margin-bottom: 0.3125rem;
}

.contact-info-item a {
  color: hsl(var(--color-accent));
  text-decoration: none;
}

.contact-info-item address {
  font-size: 0.9375rem;
  line-height: 1.65;
  color: hsl(var(--color-text-primary));
  border-left: none;
  background: none;
  padding: 0;
}

.contact-topics {
  background: hsl(var(--color-background));
  border-radius: var(--radius-base);
  padding: 1.25rem;
  margin-top: 1rem;
}

.contact-topics h3 {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: hsl(var(--color-primary));
  margin-bottom: 0.875rem;
}

.contact-topics ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.contact-topics li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: hsl(var(--color-text-secondary));
}

.contact-topics li i {
  color: hsl(var(--color-accent));
  width: 14px;
}

/* ----------------------------------------------------------------
   18. FORMS
   ---------------------------------------------------------------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: hsl(var(--color-primary));
  font-family: var(--font-heading);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

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

.form-input {
  padding: 0.6875rem 0.9375rem;
  border: 1.5px solid hsl(var(--color-border));
  border-radius: var(--radius-base);
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: hsl(var(--color-text-primary));
  background: hsl(var(--color-surface));
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  width: 100%;
  appearance: none;
}

.form-input:focus {
  outline: none;
  border-color: hsl(var(--color-accent));
  box-shadow: 0 0 0 3px rgba(232,160,32,0.15);
}

.form-input.error {
  border-color: #e53e3e;
}

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

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3E%3Cpath fill='%231A1F2E' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.875rem center;
  background-size: 1.125rem;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-error {
  font-size: 0.8125rem;
  color: #e53e3e;
  display: block;
  min-height: 1.25rem;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  background: rgba(22,163,74,0.1);
  border: 1px solid rgba(22,163,74,0.35);
  color: #15803d;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-base);
  font-size: 0.9375rem;
}

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

/* ----------------------------------------------------------------
   19. FOOTER
   ---------------------------------------------------------------- */
.site-footer {
  background: var(--gradient-primary);
  color: rgba(255,255,255,0.78);
  padding: 4rem 0 0;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: hsl(var(--color-text-light));
  text-decoration: none;
  margin-bottom: 0.875rem;
}

.footer-logo i {
  color: hsl(var(--color-accent));
  font-size: 1.25rem;
}

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

.footer-tagline {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 1.25rem;
  max-width: 280px;
  line-height: 1.6;
}

.footer-address {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.7;
  margin-bottom: 0.875rem;
}

.footer-email {
  display: inline-flex;
  align-items: center;
  gap: 0.4375rem;
  font-size: 0.9rem;
  color: hsl(var(--color-accent));
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: hsl(var(--color-text-light));
  margin-bottom: 1rem;
}

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

.footer-links a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-about-text {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.footer-social {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
  margin-top: 0.625rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.75);
  border-radius: 50%;
  text-decoration: none;
  font-size: 0.9375rem;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.social-link:hover {
  background: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
}

.footer-bottom {
  padding: 1.25rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.625rem;
}

.footer-bottom p {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
}

.footer-disclaimer {
  font-size: 0.75rem !important;
  color: rgba(255,255,255,0.35) !important;
}

/* ----------------------------------------------------------------
   20. ERROR PAGE
   ---------------------------------------------------------------- */
.error-page {
  min-height: 70vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1.25rem;
  position: relative;
  overflow: hidden;
}

.error-bg-disc {
  position: absolute;
  font-size: 30rem;
  color: rgba(26,31,46,0.045);
  pointer-events: none;
  z-index: 0;
  line-height: 1;
}

.error-content {
  position: relative;
  z-index: 1;
  max-width: 560px;
}

.error-code {
  font-family: var(--font-heading);
  font-size: clamp(5rem, 18vw, 10rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.5rem;
}

.error-title {
  font-family: var(--font-heading);
  font-size: clamp(1.375rem, 4vw, 2rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: hsl(var(--color-primary));
  margin-bottom: 1rem;
}

.error-message {
  font-size: 1.0625rem;
  color: hsl(var(--color-text-secondary));
  margin-bottom: 2rem;
  line-height: 1.7;
}

.error-suggestions {
  text-align: left;
  background: hsl(var(--color-background));
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid hsl(var(--color-border));
}

.error-suggestions h2 {
  font-family: var(--font-heading);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: hsl(var(--color-primary));
  margin-bottom: 1rem;
}

.error-suggestions ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.error-suggestions a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: hsl(var(--color-text-primary));
  text-decoration: none;
  padding: 0.375rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.error-suggestions a:hover {
  color: hsl(var(--color-accent));
  background: rgba(232,160,32,0.07);
}

.error-suggestions a i {
  color: hsl(var(--color-accent));
  width: 20px;
}

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

/* ----------------------------------------------------------------
   21. SCROLL ANIMATIONS
   ---------------------------------------------------------------- */
.fade-in-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

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

/* ----------------------------------------------------------------
   22. BACK TO TOP
   ---------------------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 44px;
  height: 44px;
  background: hsl(var(--color-primary));
  color: hsl(var(--color-text-light));
  border: 2px solid hsl(var(--color-accent));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9375rem;
  cursor: pointer;
  box-shadow: var(--shadow-base);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity var(--transition-base), transform var(--transition-base), background-color var(--transition-fast);
  z-index: 900;
}

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

.back-to-top:hover {
  background: hsl(var(--color-accent));
  color: hsl(var(--color-primary));
}

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

/* ----------------------------------------------------------------
   23. RESPONSIVE — TABLET (min-width: 768px)
   ---------------------------------------------------------------- */
@media (min-width: 768px) {
  /* Header */
  .hamburger { display: none; }
  .nav-menu  { display: flex; }

  /* Ad zones */
  .ad-leaderboard  { display: block; }
  .ad-mobile-banner { display: none; }

  /* Footer Grid */
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Contact layout */
  .contact-layout {
    grid-template-columns: 1fr 1fr;
  }

  /* Page layout */
  .page-layout {
    grid-template-columns: 1fr 300px;
  }

  /* Article layout */
  .article-layout {
    grid-template-columns: 1fr 280px;
  }

  /* Articles layout */
  .articles-layout {
    grid-template-columns: 1fr 280px;
  }

  /* CTA box */
  .cta-box {
    grid-template-columns: 1fr auto;
  }
}

/* ----------------------------------------------------------------
   24. RESPONSIVE — DESKTOP (min-width: 1024px)
   ---------------------------------------------------------------- */
@media (min-width: 1024px) {
  /* Footer */
  .footer-grid {
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
  }

  /* Article layout */
  .article-layout {
    grid-template-columns: 1fr 300px;
  }

  /* Articles layout */
  .articles-layout {
    grid-template-columns: 1fr 300px;
  }

  /* About features */
  .about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }
}

/* ----------------------------------------------------------------
   25. RESPONSIVE — MOBILE (max-width: 767px)
   ---------------------------------------------------------------- */
@media (max-width: 767px) {
  /* Hamburger */
  .hamburger {
    display: flex;
  }

  /* Nav menu hidden until toggled */
  .nav-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: hsl(var(--color-primary));
    flex-direction: column;
    padding: 0.75rem;
    box-shadow: 0 8px 24px hsla(220,26%,5%,0.45);
    z-index: 999;
    border-top: 1px solid rgba(255,255,255,0.1);
    gap: 0.125rem;
  }

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

  .site-header {
    position: relative;
  }

  .header-inner {
    position: relative;
  }

  .nav-link {
    padding: 0.625rem 0.75rem;
    font-size: 0.875rem;
    justify-content: space-between;
    width: 100%;
  }

  /* Dropdown on mobile — static */
  .dropdown-menu {
    position: static;
    display: none;
    padding-left: 1rem;
    background: rgba(255,255,255,0.06);
    border-radius: var(--radius-base);
    margin-top: 0.25rem;
    box-shadow: none;
    border: none;
  }

  .dropdown.active .dropdown-menu {
    display: flex;
    flex-direction: column;
  }

  .dropdown:hover .dropdown-menu,
  .dropdown:focus-within .dropdown-menu {
    display: none;
  }

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

  /* Ad zones */
  .ad-leaderboard  { display: none; }
  .ad-mobile-banner { display: block; }

  /* Hero */
  .hero { min-height: 420px; }
  .hero-stats { display: none; }

  /* Features */
  .features-grid { grid-template-columns: 1fr; }

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

  /* CTA box */
  .cta-box {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
  }

  .cta-links {
    border-top: 1px solid rgba(255,255,255,0.12);
    padding-top: 1.5rem;
  }

  /* Article body */
  .article-header,
  .article-body,
  .article-nav {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  /* Pagination */
  .pagination-pages {
    display: none;
  }

  /* Back to top */
  .back-to-top {
    bottom: 1.25rem;
    right: 1.25rem;
  }

  /* Footer bottom */
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ----------------------------------------------------------------
   26. PRINT STYLES
   ---------------------------------------------------------------- */
@media print {
  .ad-zone,
  .hamburger,
  .site-header,
  .back-to-top,
  .article-nav,
  .site-footer,
  .breadcrumbs-bar,
  .category-filters,
  .pagination,
  .article-sidebar,
  .page-sidebar,
  .articles-sidebar {
    display: none !important;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .article-body,
  .page-body {
    max-width: 100%;
    padding: 0;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  .article-title,
  .page-title {
    color: #000;
  }
}