/* ============================================================
   listing.css — Shared styles for Blog & Trends listing pages
   Both pages set --page-accent on <main> to theme themselves:
     Blog:   --page-accent: var(--brand)
     Trends: --page-accent: #ef4444
   ============================================================ */

/* -- Typography overrides -- */
.listing-hero,
.listing-featured-body,
.listing-card-body,
.listing-cta {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}
.listing-hero-title,
.listing-featured-title {
  font-family: 'Newsreader', Georgia, 'Times New Roman', serif;
}

/* ========== HERO ========== */
.listing-hero {
  padding: var(--space-6) 0 var(--space-4);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.listing-hero::before {
  content: '';
  position: absolute;
  top: -40%; left: -20%; width: 140%; height: 180%;
  background:
    radial-gradient(600px 400px at 30% 20%, color-mix(in oklab, var(--page-accent) 8%, transparent), transparent 70%),
    radial-gradient(500px 300px at 70% 60%, color-mix(in oklab, var(--accent) 6%, transparent), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.listing-hero .container { position: relative; z-index: 1; }

.listing-hero-eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--page-accent);
  margin-bottom: var(--space-2);
  opacity: 0; animation: listingFadeUp 0.6s 0.1s forwards;
}
.listing-hero-title {
  font-size: clamp(42px, 6vw, 80px);
  line-height: 0.95;
  font-weight: 600;
  letter-spacing: -0.04em;
  margin: 0 0 var(--space-3);
  color: var(--text);
  opacity: 0; animation: listingFadeUp 0.6s 0.2s forwards;
}
.listing-hero-title em {
  font-style: italic;
  background: linear-gradient(135deg, var(--page-accent), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.listing-hero-subtitle {
  font-size: clamp(16px, 1.6vw, 20px);
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto var(--space-4);
  line-height: 1.7;
  opacity: 0; animation: listingFadeUp 0.6s 0.3s forwards;
}

/* -- Stats row -- */
.listing-stats {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  opacity: 0; animation: listingFadeUp 0.6s 0.4s forwards;
}
.listing-stat { text-align: center; }
.listing-stat-num {
  display: block;
  font-size: 28px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  letter-spacing: -0.03em;
}
.listing-stat-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
  margin-top: 4px;
  display: block;
}
.listing-stat-divider {
  width: 1px; height: 32px;
  background: var(--border);
}

/* ========== FEATURED ARTICLE ========== */
.listing-featured-section {
  padding-bottom: var(--space-4);
}
.listing-section-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--page-accent);
  margin-bottom: var(--space-2);
  padding-left: 2px;
}
.listing-featured {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 0;
  border-radius: 20px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: all 0.35s cubic-bezier(.4,0,.2,1);
  opacity: 0; animation: listingFadeUp 0.5s 0.15s forwards;
}
.listing-featured:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 48px rgba(0,0,0,0.12), 0 0 0 1px color-mix(in oklab, var(--page-accent) 20%, transparent);
  text-decoration: none;
  color: inherit;
}
.listing-featured-img-wrap {
  position: relative;
  overflow: hidden;
  min-height: 320px;
}
.listing-featured-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s cubic-bezier(.4,0,.2,1);
}
.listing-featured:hover .listing-featured-img {
  transform: scale(1.04);
}
.listing-featured-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.1), transparent 60%);
  pointer-events: none;
}
.listing-featured-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}
.listing-featured-title {
  font-size: clamp(24px, 2.4vw, 34px);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 0;
  color: var(--text);
}
.listing-featured-desc {
  font-size: 15px;
  color: var(--muted);
  line-height: 1.65;
  margin: 0;
}
.listing-featured-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}
.listing-featured-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--page-accent);
  margin-top: 4px;
  transition: gap 0.2s;
}
.listing-featured:hover .listing-featured-cta { gap: 10px; }

/* ========== CATEGORY BADGES ========== */
.listing-category-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 6px;
  width: fit-content;
}
.listing-cat-science {
  background: color-mix(in oklab, #06b6d4 12%, transparent);
  color: #06b6d4;
  border: 1px solid color-mix(in oklab, #06b6d4 20%, transparent);
}
.listing-cat-sports {
  background: color-mix(in oklab, #f59e0b 12%, transparent);
  color: #f59e0b;
  border: 1px solid color-mix(in oklab, #f59e0b 20%, transparent);
}
.listing-cat-ai {
  background: color-mix(in oklab, var(--brand) 12%, transparent);
  color: var(--brand);
  border: 1px solid color-mix(in oklab, var(--brand) 20%, transparent);
}
.listing-cat-business {
  background: color-mix(in oklab, #10b981 12%, transparent);
  color: #10b981;
  border: 1px solid color-mix(in oklab, #10b981 20%, transparent);
}
html[data-theme='light'] .listing-cat-science { color: #0e7490; }
html[data-theme='light'] .listing-cat-sports { color: #b45309; }
html[data-theme='light'] .listing-cat-business { color: #047857; }

/* ========== TOOLBAR ========== */
.listing-toolbar-section {
  padding-bottom: var(--space-2);
}
.listing-toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: var(--space-2);
}
.listing-search-wrap {
  flex: 1;
  position: relative;
  max-width: 400px;
}
.listing-search-icon {
  position: absolute;
  left: 14px; top: 50%;
  transform: translateY(-50%);
  color: var(--muted);
  pointer-events: none;
}
.listing-search {
  width: 100%;
  padding: 10px 14px 10px 40px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.listing-search:focus {
  border-color: var(--page-accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--page-accent) 12%, transparent);
}
.listing-search::placeholder { color: var(--muted); opacity: 0.7; }
.listing-search-kbd {
  position: absolute;
  right: 10px; top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  font-family: inherit;
  padding: 2px 7px;
  border-radius: 5px;
  border: 1px solid var(--border);
  background: var(--surface-alt);
  color: var(--muted);
  pointer-events: none;
  line-height: 1.4;
}
.listing-search:focus ~ .listing-search-kbd,
.listing-search:not(:placeholder-shown) ~ .listing-search-kbd { opacity: 0; }

.listing-toolbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}
.listing-sort {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  user-select: none;
  transition: border-color 0.2s, color 0.2s;
}
.listing-sort:hover { border-color: var(--page-accent); color: var(--text); }

.listing-view-toggle {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  background: var(--surface);
}
.listing-view-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.listing-view-btn:hover { background: var(--surface-alt); color: var(--text); }
.listing-view-btn.active {
  background: color-mix(in oklab, var(--page-accent) 12%, transparent);
  color: var(--page-accent);
}

/* -- Filters -- */
.listing-filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: var(--space-2);
}
.listing-filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.listing-filter-pill:hover {
  border-color: color-mix(in oklab, var(--page-accent) 40%, transparent);
  color: var(--text);
}
.listing-filter-pill.active {
  background: color-mix(in oklab, var(--page-accent) 10%, var(--surface));
  border-color: color-mix(in oklab, var(--page-accent) 30%, transparent);
  color: var(--page-accent);
  font-weight: 600;
}
.filter-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  display: inline-block;
}
.filter-dot-science { background: #06b6d4; }
.filter-dot-sports { background: #f59e0b; }
.filter-dot-ai { background: var(--brand); }
.filter-dot-business { background: #10b981; }

.listing-results-bar {
  margin-bottom: var(--space-2);
}
.listing-results-count {
  font-size: 13px;
  color: var(--muted);
  font-weight: 500;
}

.listing-meta-dot {
  width: 3px; height: 3px;
  border-radius: 50%;
  background: var(--muted);
  display: inline-block;
  vertical-align: middle;
}

/* ========== CARD GRID ========== */
.listing-articles-section {
  padding-bottom: var(--space-5);
  min-height: 300px;
}
.listing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.listing-grid.list-view {
  grid-template-columns: 1fr;
  gap: var(--space-2);
}

/* -- CARD -- */
.listing-card {
  border-radius: 16px;
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.3s cubic-bezier(.4,0,.2,1);
  opacity: 0;
  animation: listingCardIn 0.4s forwards;
}
.listing-card:nth-child(1) { animation-delay: 0.05s; }
.listing-card:nth-child(2) { animation-delay: 0.1s; }
.listing-card:nth-child(3) { animation-delay: 0.15s; }
.listing-card:nth-child(4) { animation-delay: 0.2s; }
.listing-card:nth-child(5) { animation-delay: 0.25s; }
.listing-card:nth-child(6) { animation-delay: 0.3s; }

.listing-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,0.10), 0 0 0 1px color-mix(in oklab, var(--page-accent) 15%, transparent);
}
.listing-card-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.listing-card-link:hover { text-decoration: none; color: inherit; }

.listing-card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16/10;
}
.listing-card-img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s cubic-bezier(.4,0,.2,1);
}
.listing-card:hover .listing-card-img { transform: scale(1.06); }
.listing-card-img-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.15) 0%, transparent 50%);
  pointer-events: none;
}
.listing-card-readtime {
  position: absolute;
  top: 12px; right: 12px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 9px;
  border-radius: 6px;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(8px);
  color: #fff;
  letter-spacing: 0.02em;
}

.listing-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.listing-card-title {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.listing-card-desc {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.listing-card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
  margin-top: auto;
  padding-top: 8px;
  font-weight: 500;
}

/* -- Hidden state for filtering -- */
.listing-card.hidden { display: none; }

/* -- LIST VIEW overrides -- */
.listing-grid.list-view .listing-card-link {
  flex-direction: row;
}
.listing-grid.list-view .listing-card-img-wrap {
  width: 260px;
  min-width: 260px;
  aspect-ratio: auto;
  min-height: 180px;
}
.listing-grid.list-view .listing-card-body {
  padding: 24px;
  justify-content: center;
}
.listing-grid.list-view .listing-card-title {
  font-size: 20px;
  -webkit-line-clamp: unset;
  line-clamp: unset;
}
.listing-grid.list-view .listing-card-desc {
  -webkit-line-clamp: 3;
  line-clamp: 3;
}

/* ========== EMPTY STATE ========== */
.listing-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: var(--space-5) 0;
  text-align: center;
}
.listing-empty p {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}
.listing-empty-reset {
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 20px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s;
}
.listing-empty-reset:hover { border-color: var(--page-accent); }

/* ========== CTA ========== */
.listing-cta-section {
  padding-bottom: var(--space-6);
}
.listing-cta {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
}
.listing-cta-glow {
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, color-mix(in oklab, var(--page-accent) 8%, transparent) 0%, transparent 70%);
  pointer-events: none;
}
.listing-cta-content { position: relative; z-index: 1; }
.listing-cta-title {
  font-size: clamp(20px, 2vw, 26px);
  font-weight: 700;
  margin: 0 0 6px;
  color: var(--text);
  letter-spacing: -0.02em;
}
.listing-cta-desc {
  font-size: 15px;
  color: var(--muted);
  margin: 0;
  line-height: 1.5;
}
.listing-cta-btn {
  position: relative;
  z-index: 1;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ========== ANIMATIONS ========== */
@keyframes listingFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes listingCardIn {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== RESPONSIVE ========== */
@media (max-width: 960px) {
  .listing-grid { grid-template-columns: repeat(2, 1fr); }
  .listing-featured { grid-template-columns: 1fr; }
  .listing-featured-img-wrap { min-height: 240px; }
  .listing-cta { flex-direction: column; text-align: center; }
}
@media (max-width: 640px) {
  .listing-hero { padding: var(--space-4) 0 var(--space-3); }
  .listing-hero-title { font-size: clamp(36px, 10vw, 50px); }
  .listing-stats { gap: var(--space-2); }
  .listing-stat-num { font-size: 22px; }
  .listing-grid { grid-template-columns: 1fr; }
  .listing-grid.list-view .listing-card-link { flex-direction: column; }
  .listing-grid.list-view .listing-card-img-wrap { width: 100%; min-width: unset; aspect-ratio: 16/10; min-height: unset; }
  .listing-toolbar { flex-wrap: wrap; }
  .listing-search-wrap { max-width: 100%; min-width: 0; flex-basis: 100%; }
  .listing-toolbar-right { margin-left: 0; }
  .listing-featured-body { padding: var(--space-3); }
}

/* ========== UTILITIES ========== */
.visually-hidden {
  position: absolute !important;
  height: 1px; width: 1px;
  overflow: hidden;
  clip: rect(1px,1px,1px,1px);
  white-space: nowrap;
  border: 0; padding: 0; margin: -1px;
}