/* =============================================
   KidsLoveColor.com — Modern CSS Redesign
   ============================================= */

/* --- Color Variables & Reset --- */
:root {
  /* New vibrant color palette */
  --coral:        #FF6B6B;
  --coral-light:  #FF8787;
  --coral-dark:   #E63946;
  --teal:         #4ECDC4;
  --teal-light:   #6FE7DC;
  --teal-dark:    #2DB8A8;

  /* Supporting colors */
  --white:        #FFFFFF;
  --bg:           #F8F9FA;
  --card-bg:      #FFFFFF;
  --text:         #2D3436;
  --text-muted:   #636E72;
  --border:       #E8EAED;
  --gray-light:   #F0F2F5;

  /* Shadows with new primary color */
  --shadow:       0 2px 12px rgba(255, 107, 107, 0.08);
  --shadow-hover: 0 8px 28px rgba(255, 107, 107, 0.15);

  /* Border radius - modern polish */
  --radius:       16px;
  --radius-sm:    12px;

  /* Animations - smooth and natural */
  --transition:   all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Nunito', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  min-height: 100vh;
  font-size: 16px;
}

img, svg {
  max-width: 100%;
}

a {
  text-decoration: none;
  color: inherit;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
}

ul {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-weight: 800;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
}

h3 {
  font-size: 1.15rem;
}

/* --- Utility Classes --- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, #FFE5E5 0%, #FFF0F0 100%);
  color: var(--coral-dark);
}

/* =============================================
   HEADER
   ============================================= */
.site-header {
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 4px 24px rgba(255, 107, 107, 0.25);
}

.header-top {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
  max-width: 1280px;
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.logo-icon {
  width: 44px;
  height: 44px;
  background: white;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.15);
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.footer-logo-img {
  height: 40px;
  filter: brightness(1.2);
}

.logo-text {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: -0.5px;
}

.logo-text span {
  color: #FFD700;
}

/* Search bar styling */
.header-search {
  flex: 1;
  max-width: 520px;
  margin: 0 auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 0.65rem 1rem 0.65rem 2.8rem;
  border-radius: 999px;
  border: none;
  background: rgba(255, 255, 255, 0.25);
  color: white;
  font-size: 0.95rem;
  font-family: inherit;
  font-weight: 600;
  backdrop-filter: blur(10px);
  transition: var(--transition);
  outline: none;
}

.search-input::placeholder {
  color: rgba(255, 255, 255, 0.75);
}

.search-input:focus {
  background: white;
  color: var(--text);
}

.search-input:focus::placeholder {
  color: var(--text-muted);
}

.search-icon {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1rem;
  pointer-events: none;
  opacity: 0.8;
}

/* Header right actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  padding: 0.25rem 0.4rem;
  flex-wrap: nowrap;
}

.lang-btn {
  background: none;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.4rem;
  border-radius: 999px;
  transition: var(--transition);
  white-space: nowrap;
}

.lang-btn.active, .lang-btn:hover {
  background: white;
  color: var(--coral);
}

@media (max-width: 640px) {
  .lang-btn {
    font-size: 0.65rem;
    padding: 0.1rem 0.3rem;
  }
}

/* =============================================
   HERO / BANNER SECTION
   ============================================= */
.hero-section {
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.08) 0%, rgba(78, 205, 196, 0.08) 100%),
              repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255, 107, 107, 0.02) 10px, rgba(255, 107, 107, 0.02) 20px);
  padding: 2rem 1.25rem 1.75rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
}

.hero-section h1 {
  color: var(--coral);
  margin-bottom: 0.5rem;
}

.hero-section p {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto 1.25rem;
}

.hero-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  flex-wrap: wrap;
}

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

.stat-number {
  font-size: 1.8rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--coral) 0%, var(--teal) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* =============================================
   AD PLACEHOLDERS
   ============================================= */
.ad-banner {
  background: var(--gray-light);
  border: 1px solid #E0E0E0;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #B0B8C1;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.5rem;
}

.ad-banner--horizontal {
  width: 100%;
  height: 90px;
  margin: 1.5rem 0;
}

.ad-banner--sidebar {
  width: 100%;
  height: 260px;
  margin-bottom: 1.5rem;
}

.ad-banner--between {
  width: 100%;
  height: 100px;
  margin: 2rem 0;
}

/* Real ads (Google AdSense) */
.adsbygoogle {
  display: block;
}

/* =============================================
   CATEGORY NAVIGATION
   ============================================= */
.category-nav {
  background: white;
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.category-nav::-webkit-scrollbar {
  display: none;
}

.category-nav-inner {
  display: flex;
  gap: 0.6rem;
  padding: 0 1.25rem;
  min-width: max-content;
  max-width: 1280px;
  margin: 0 auto;
}

.cat-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.25rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  background: var(--bg);
  color: var(--text-muted);
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
}

.cat-btn:hover {
  background: #FFF0F0;
  color: var(--coral);
  border-color: var(--coral-light);
}

.cat-btn.active {
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  border-color: var(--coral);
  box-shadow: 0 4px 16px rgba(255, 107, 107, 0.3);
}

.cat-btn .cat-icon {
  font-size: 1.1rem;
}

/* =============================================
   MAIN LAYOUT
   ============================================= */
.main-layout {
  max-width: 1280px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2rem;
  align-items: start;
}

@media (max-width: 1024px) {
  .main-layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    order: 2;
  }
  .coloring-section {
    order: 1;
  }
}

/* =============================================
   COLORING PAGE GRID
   ============================================= */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.section-title {
  font-size: 1.5rem;
  color: var(--coral);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 900;
}

.result-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 700;
  background: var(--border);
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.coloring-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .coloring-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
}

@media (max-width: 640px) {
  .coloring-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
  }
}

/* =============================================
   COLORING CARD
   ============================================= */
.coloring-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
  cursor: pointer;
  position: relative;
  display: flex;
  flex-direction: column;
}

.coloring-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-hover);
  border-color: var(--coral-light);
}

.card-thumbnail {
  width: 100%;
  aspect-ratio: 1 / 1.414;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-light);
  padding: 0.75rem;
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}

.card-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: var(--transition);
}

.coloring-card:hover .card-thumbnail img {
  transform: scale(1.08);
}

.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 107, 107, 0.85) 0%, rgba(78, 205, 196, 0.85) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  opacity: 0;
  transition: var(--transition);
  border-radius: var(--radius);
}

.coloring-card:hover .card-overlay {
  opacity: 1;
}

.overlay-btn {
  background: white;
  color: var(--coral);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.overlay-btn:hover {
  background: #FFD700;
  color: var(--coral);
  transform: scale(1.15);
}

.card-info {
  padding: 0.85rem 1rem;
  border-top: 1px solid var(--border);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.card-category {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card-difficulty {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.difficulty-easy   {
  background: #D1FAE5;
  color: #065F46;
}

.difficulty-medium {
  background: #FEF3C7;
  color: #92400E;
}

.difficulty-hard   {
  background: #FCE7F3;
  color: #831843;
}

/* No results state */
.no-results {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-muted);
  display: none;
}

.no-results.visible {
  display: block;
}

.no-results .no-results-icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
}

.no-results h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  color: var(--text);
}

/* =============================================
   SIDEBAR
   ============================================= */
.sidebar {
  position: sticky;
  top: 80px;
}

.sidebar-card {
  background: white;
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
}

.sidebar-title {
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--coral);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.tip-list li {
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  line-height: 1.5;
}

.tip-list li:last-child {
  border-bottom: none;
}

.tip-icon {
  flex-shrink: 0;
  font-size: 1.2rem;
}

/* =============================================
   MODAL / LIGHTBOX
   ============================================= */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(45, 52, 54, 0.7);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  backdrop-filter: blur(8px);
}

.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: white;
  border-radius: 20px;
  max-width: 700px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 80px rgba(0, 0, 0, 0.35);
  transform: scale(0.92) translateY(20px);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-header {
  padding: 1.75rem 1.75rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.5rem;
  font-weight: 900;
  color: var(--coral);
}

.modal-close {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--gray-light);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-muted);
  transition: var(--transition);
}

.modal-close:hover {
  background: #FFE5E5;
  color: var(--coral);
}

.modal-image {
  padding: 1.5rem 1.75rem;
}

.modal-image img {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--gray-light);
}

.modal-actions {
  padding: 0 1.75rem 1.25rem;
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 800;
  transition: var(--transition);
  border: 2px solid transparent;
}

.btn-primary {
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  box-shadow: 0 4px 18px rgba(255, 107, 107, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(255, 107, 107, 0.4);
}

.btn-secondary {
  background: var(--gray-light);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  border-color: var(--coral);
  background: #FFF0F0;
  transform: translateY(-2px);
  color: var(--coral);
}

.btn-green {
  background: linear-gradient(135deg, var(--teal) 0%, var(--teal-light) 100%);
  color: white;
  box-shadow: 0 4px 18px rgba(78, 205, 196, 0.3);
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(78, 205, 196, 0.4);
}

.modal-info {
  padding: 1rem 1.75rem 1.75rem;
  background: var(--gray-light);
  border-radius: 0 0 20px 20px;
  border-top: 1px solid var(--border);
}

.modal-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.tag {
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  background: white;
  color: var(--coral);
  border: 1px solid var(--border);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* =============================================
   PRINT AD BANNER (in modal)
   ============================================= */
.modal-ad {
  margin: 0 1.75rem 1rem;
}

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: #2D3436;
  color: rgba(255, 255, 255, 0.85);
  padding: 3.5rem 1.25rem 1.5rem;
  margin-top: 3rem;
}

.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2.5rem;
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.footer-brand .logo-text {
  font-size: 1.3rem;
  color: white;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.75);
}

.footer-links h4 {
  color: white;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 900;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  transition: color var(--transition);
  color: rgba(255, 255, 255, 0.75);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.7);
}

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

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
  body > *:not(.print-only) {
    display: none !important;
  }

  .print-only {
    display: block !important;
  }

  .print-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 1cm;
  }

  .print-page h2 {
    font-size: 16pt;
    margin-bottom: 12pt;
    color: #333;
  }

  .print-page img {
    max-width: 18cm;
    max-height: 22cm;
  }

  .print-page p {
    font-size: 9pt;
    color: #666;
    margin-top: 8pt;
  }
}

/* =============================================
   ANIMATIONS
   ============================================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to   {
    opacity: 1;
    transform: translateY(0);
  }
}

.coloring-card {
  animation: fadeInUp 0.5s ease both;
}

.coloring-card:nth-child(2)  { animation-delay: 0.05s; }
.coloring-card:nth-child(3)  { animation-delay: 0.1s; }
.coloring-card:nth-child(4)  { animation-delay: 0.15s; }
.coloring-card:nth-child(5)  { animation-delay: 0.2s; }
.coloring-card:nth-child(6)  { animation-delay: 0.25s; }
.coloring-card:nth-child(7)  { animation-delay: 0.3s; }
.coloring-card:nth-child(8)  { animation-delay: 0.35s; }

/* =============================================
   RESPONSIVE ADJUSTMENTS
   ============================================= */
@media (max-width: 768px) {
  .hero-section {
    padding: 1.75rem 1.25rem 1.25rem;
  }

  .hero-stats {
    gap: 1.5rem;
  }

  .header-top {
    padding: 0.75rem 1rem;
  }

  .logo-text {
    font-size: 1.2rem;
  }

  .header-search {
    max-width: 180px;
  }
}

@media (max-width: 640px) {
  .hero-section {
    padding: 1.5rem 1rem 1rem;
  }

  .hero-stats {
    gap: 1rem;
  }

  .header-top {
    padding: 0.6rem 0.85rem;
  }

  .logo-text {
    font-size: 1.1rem;
  }

  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 1.3rem;
  }

  .header-search {
    display: none;
  }

  .modal {
    max-height: 95vh;
  }

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

  .btn {
    width: 100%;
  }

  .main-layout {
    padding: 1.5rem 1rem;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .stat-number {
    font-size: 1.5rem;
  }

  .stat-label {
    font-size: 0.75rem;
  }
}

@media (max-width: 480px) {
  .coloring-grid {
    gap: 0.75rem;
  }

  .header-actions {
    gap: 0.5rem;
  }
}

/* =============================================
   SCROLL TO TOP BUTTON
   ============================================= */
.scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 6px 24px rgba(255, 107, 107, 0.35);
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
  border: none;
  z-index: 99;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 32px rgba(255, 107, 107, 0.45);
}

/* =============================================
   SKIP LINK (Accessibility)
   ============================================= */
.skip-link {
  position: absolute;
  top: -100px;
  left: 1rem;
  background: linear-gradient(135deg, var(--coral) 0%, var(--coral-light) 100%);
  color: white;
  padding: 0.85rem 1.5rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 800;
  font-size: 0.95rem;
  z-index: 9999;
  transition: top 0.2s;
  text-decoration: none;
}

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

/* =============================================
   LANGUAGE BUTTON AS LINK
   ============================================= */
a.lang-btn {
  display: inline-block;
  text-decoration: none;
}

/* =============================================
   BREADCRUMB NAVIGATION
   ============================================= */
.breadcrumb-nav {
  margin-bottom: 1rem;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-muted);
  list-style: none;
  padding: 0;
  margin: 0;
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.breadcrumb li + li::before {
  content: '›';
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
}

.breadcrumb a {
  color: var(--coral);
  font-weight: 700;
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--coral-dark);
  text-decoration: underline;
}

/* =============================================
   CATEGORY INTRO TEXT
   ============================================= */
.category-intro {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.75;
  max-width: 750px;
}

/* =============================================
   SEO TEXT BLOCK
   ============================================= */
.seo-text-block {
  margin-top: 3rem;
  padding: 2.25rem;
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.seo-text-block h2 {
  font-size: 1.35rem;
  color: var(--coral);
  margin-bottom: 1rem;
  font-weight: 900;
}

.seo-text-block h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin: 1.5rem 0 0.75rem;
  font-weight: 800;
}

.seo-text-block p {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 1rem;
}

.seo-text-block strong {
  color: var(--text);
  font-weight: 800;
}

.seo-text-block em {
  color: var(--coral);
  font-style: normal;
  font-weight: 800;
}

.seo-category-links {
  list-style: none;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.25rem;
}

.seo-category-links li {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border);
}

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

.seo-category-links a {
  color: var(--coral);
  text-decoration: none;
  font-weight: 800;
  transition: color var(--transition);
}

.seo-category-links a:hover {
  color: var(--coral-dark);
  text-decoration: underline;
}

/* =============================================
   MODAL TITLE FOCUS
   ============================================= */
.modal-title:focus {
  outline: 2px solid var(--coral);
  outline-offset: 2px;
  border-radius: 4px;
}

/* =============================================
   FONT DISPLAY
   ============================================= */
@font-face {
  font-family: 'Nunito';
  font-display: swap;
}

/* =============================================
   CHINESE LANGUAGE SUPPORT
   ============================================= */
:lang(zh) body,
:lang(zh) h1,
:lang(zh) h2,
:lang(zh) h3,
:lang(zh) p,
:lang(zh) button,
:lang(zh) input,
:lang(zh) a {
  font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', 'Heiti SC', sans-serif;
}

:lang(zh) body {
  line-height: 1.8;
  word-break: break-all;
}