/* Grammar page UX refinements; intentionally scoped to this page. */
.skip-link {
  position: fixed;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 2000;
  padding: 0.75rem 1rem;
  color: #fff;
  background: #1f2937;
  border-radius: 0.5rem;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.hero-buttons a {
  text-decoration: none;
}

.pillar-hero--grammar {
  --hero-accent: #0f766e;
  --hero-accent-bright: #34d399;
  --hero-deep: #064e3b;
}

body.resource-page-experience .hero-section.pillar-hero.pillar-hero--grammar {
  min-height: 0;
  padding: clamp(1.5rem, 3vw, 2.5rem) 1rem;
}

body.resource-page-experience
  .hero-section.pillar-hero.pillar-hero--grammar
  .pillar-hero__eyebrow {
  margin-bottom: 0.85rem;
}

body.resource-page-experience
  .hero-section.pillar-hero.pillar-hero--grammar
  .pillar-hero__title {
  margin-bottom: 0.65rem;
  font-size: clamp(1.9rem, 4vw, 3.35rem);
}

body.resource-page-experience
  .hero-section.pillar-hero.pillar-hero--grammar
  .pillar-hero__subtitle {
  max-width: 58ch;
  margin: 0.75rem auto 0.85rem;
  line-height: 1.5;
}

.grammar-page-hero .hero-buttons {
  margin-top: 1.75rem !important;
  gap: 0.75rem !important;
}

.grammar-page-hero .hero-buttons a {
  min-height: 48px;
  justify-content: center;
}

.grammar-page-hero .hero-content {
  padding: 0 !important;
}

@media (max-width: 767px) {
  body.resource-page-experience .hero-section.pillar-hero.pillar-hero--grammar {
    height: auto !important;
    min-height: 564px;
  }
}

.hero-buttons a:focus-visible,
.filter-btn:focus-visible,
.search-clear-btn:focus-visible,
.reset-search-btn:focus-visible,
.topic-link:focus-visible,
.related-resource-card:focus-visible,
.grammar-faq-section summary:focus-visible {
  outline: 3px solid #0f766e;
  outline-offset: 3px;
}

.search-filter-section {
  padding: clamp(1.25rem, 3vw, 2rem) 1rem;
  background: linear-gradient(135deg, #f8fafc 0%, #eef6f3 100%);
}

.search-filter-wrapper {
  gap: 1rem;
}

.grammar-search-input::placeholder {
  color: #64748b;
  opacity: 1;
}

.main-content {
  max-width: none;
  padding: clamp(1.5rem, 4vw, 3rem) 0;
  background: transparent;
}

.grammar-section {
  margin-bottom: 0;
}

.grammar-content,
.grammar-section,
.rule-grid {
  width: 100%;
  min-width: 0;
}

.rule-grid {
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  align-items: stretch;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.rule-card {
  min-width: 0;
  border: 1px solid #e2e8f0;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.07);
}

.rule-card:hover,
.rule-card:focus-within {
  transform: translateY(-4px);
  border-color: rgba(64, 145, 108, 0.5);
  box-shadow: 0 14px 30px rgba(15, 23, 42, 0.12);
}

.rule-card-body {
  padding-right: 1.5rem !important;
}

.card-action-btn {
  display: none !important;
}

.topic-link {
  min-height: 48px;
}

.grammar-ad-slot {
  margin: clamp(1.5rem, 4vw, 3rem) auto;
  padding: 0 1rem;
}

.grammar-ad-slot__inner {
  width: min(100%, 970px);
  min-height: 110px;
  margin: 0 auto;
  padding: 0.75rem 1rem 1rem;
  border: 1px solid #e2e8f0;
  border-radius: 1rem;
  background: #f8fafc;
}

.grammar-ad-slot__label {
  display: block;
  margin-bottom: 0.5rem;
  color: #64748b;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.grammar-ad-slot .adsbygoogle {
  max-width: 100%;
  min-height: 90px;
}

.grammar-ad-slot iframe {
  max-width: 100% !important;
}

.grammar-test-section,
.grammar-faq-section,
.grammar-in-use-section {
  border-radius: 1.5rem;
}

.grammar-in-use-section
  .container
  > div[style*="grid-template-columns: repeat(2"] {
  grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
}

.grammar-faq-section summary {
  padding: 0.25rem 0;
}

.related-resource-card:focus-visible {
  outline-color: #0f766e;
}

.grammar-journey-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr)) !important;
}

.grammar-journey-grid > a {
  min-height: 180px;
  text-align: left;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

.grammar-journey-grid > a:hover,
.grammar-journey-grid > a:focus-visible {
  transform: translateY(-4px);
  border-color: rgba(15, 118, 110, 0.45) !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14) !important;
}

.grammar-journey-grid > a:focus-visible {
  outline: 3px solid #0f766e;
  outline-offset: 3px;
}

.grammar-examples-grid {
  align-items: stretch;
}

.grammar-examples-grid > div {
  min-width: 0;
}

@media (min-width: 640px) and (max-width: 900px) {
  body.resource-page-experience header .nav-links {
    position: fixed !important;
    top: var(--header-height) !important;
    right: 0 !important;
    left: 0 !important;
    flex-direction: column !important;
    gap: 0 !important;
    width: 100% !important;
    max-width: none !important;
    max-height: 0 !important;
    overflow: hidden !important;
    background: #fff !important;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;
    opacity: 0 !important;
    visibility: hidden !important;
    transform: translateY(-10px) !important;
    transition: all var(--transition-speed) !important;
  }

  body.resource-page-experience header .nav-links.active {
    max-height: 500px !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
  }

  body.resource-page-experience header .nav-item {
    width: 100% !important;
    flex-direction: column !important;
  }

  body.resource-page-experience header .nav-link {
    width: 100% !important;
    padding: 1rem !important;
    border-radius: 0 !important;
  }

  .mobile-toggle {
    display: flex !important;
  }
}

body.dark-mode .search-filter-section,
body.dark-mode .grammar-section,
body.dark-mode .grammar-test-section,
body.dark-mode .grammar-faq-section,
body.dark-mode .grammar-in-use-section {
  color: var(--text-primary);
  background: #111827 !important;
  border-color: #374151;
}

body.dark-mode .rule-card,
body.dark-mode .grammar-in-use-section .container > div > div,
body.dark-mode
  .grammar-test-section
  > .container
  > div[style*="grid-template-columns"]
  > div,
body.dark-mode .grammar-faq-section details,
body.dark-mode .grammar-test-section #quizModal > div,
body.dark-mode .related-resource-card {
  color: var(--text-primary);
  background: #1f2937 !important;
  border-color: #374151;
}

body.dark-mode .resource-card-content h4,
body.dark-mode .related-resources-header h3 {
  color: #f9fafb;
}

body.dark-mode .related-resources-section {
  background: linear-gradient(135deg, #111827 0%, #1f2937 100%);
}

body.dark-mode .resource-card-content p {
  color: #cbd5e1;
}

@media (max-width: 700px) {
  .grammar-in-use-section
    .container
    > div[style*="grid-template-columns: repeat(2"] {
    grid-template-columns: 1fr !important;
  }

  .grammar-section {
    padding: 1.25rem;
  }

  .filter-buttons {
    justify-content: flex-start;
    scrollbar-width: thin;
  }

  .grammar-journey-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
  }
}

@media (max-width: 480px) {
  .grammar-journey-grid {
    grid-template-columns: 1fr !important;
  }

  .grammar-ad-slot__inner {
    padding-right: 0.5rem;
    padding-left: 0.5rem;
  }
}

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