/*
Theme Name: TGCN AI News
Theme URI: https://thegioicongnghe.net
Author: TGCN Engineering
Author URI: https://thegioicongnghe.net
Description: Lightweight block theme for AI-first technology news publishing.
Requires at least: 6.6
Tested up to: 7.0
Requires PHP: 8.1
Version: 0.4.2
License: GPL-2.0-or-later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: tgcn-ai-news
Tags: blog, news, custom-colors, custom-logo, editor-style, full-site-editing, block-patterns
*/

:root {
  color-scheme: light;
  --tgcn-bg: #eef3fb;
  --tgcn-surface: #ffffff;
  --tgcn-surface-soft: #f8fbff;
  --tgcn-text: #0c1528;
  --tgcn-muted: #5a6780;
  --tgcn-border: rgba(12, 21, 40, 0.1);
  --tgcn-primary: #1560ff;
  --tgcn-secondary: #6d4dff;
  --tgcn-gradient: linear-gradient(130deg, rgba(21, 96, 255, 0.16), rgba(109, 77, 255, 0.18));
  --tgcn-radius-xs: 12px;
  --tgcn-radius-sm: 16px;
  --tgcn-radius-md: 22px;
  --tgcn-radius-lg: 30px;
  --tgcn-shadow: 0 16px 36px rgba(12, 21, 40, 0.08);
  --tgcn-shadow-hover: 0 24px 46px rgba(12, 21, 40, 0.14);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --tgcn-bg: #090d16;
  --tgcn-surface: #11192a;
  --tgcn-surface-soft: #171f33;
  --tgcn-text: #ecf3ff;
  --tgcn-muted: #a7b2c9;
  --tgcn-border: rgba(196, 212, 255, 0.14);
  --tgcn-primary: #6ea3ff;
  --tgcn-secondary: #9f8aff;
  --tgcn-gradient: linear-gradient(130deg, rgba(110, 163, 255, 0.2), rgba(159, 138, 255, 0.23));
  --tgcn-shadow: 0 14px 30px rgba(5, 9, 16, 0.45);
  --tgcn-shadow-hover: 0 20px 42px rgba(5, 9, 16, 0.55);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --tgcn-bg: #090d16;
    --tgcn-surface: #11192a;
    --tgcn-surface-soft: #171f33;
    --tgcn-text: #ecf3ff;
    --tgcn-muted: #a7b2c9;
    --tgcn-border: rgba(196, 212, 255, 0.14);
    --tgcn-primary: #6ea3ff;
    --tgcn-secondary: #9f8aff;
    --tgcn-gradient: linear-gradient(130deg, rgba(110, 163, 255, 0.2), rgba(159, 138, 255, 0.23));
    --tgcn-shadow: 0 14px 30px rgba(5, 9, 16, 0.45);
    --tgcn-shadow-hover: 0 20px 42px rgba(5, 9, 16, 0.55);
  }
}

body {
  background: radial-gradient(circle at 100% -5%, rgba(21, 96, 255, 0.18), transparent 42%),
    radial-gradient(circle at -8% 100%, rgba(109, 77, 255, 0.16), transparent 40%),
    var(--tgcn-bg);
  color: var(--tgcn-text);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--tgcn-primary);
  text-underline-offset: 0.14em;
}

a:hover {
  color: color-mix(in srgb, var(--tgcn-primary) 78%, #000 22%);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  letter-spacing: -0.018em;
}

.tgcn-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--tgcn-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.72rem;
  font-weight: 600;
}

.tgcn-kicker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 99px;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  box-shadow: 0 0 0 3px rgba(21, 96, 255, 0.12);
}

.wp-block-group.is-style-tgcn-card,
.tgcn-card {
  background: color-mix(in srgb, var(--tgcn-surface) 92%, transparent 8%);
  border: 1px solid var(--tgcn-border);
  border-radius: var(--tgcn-radius-md);
  box-shadow: var(--tgcn-shadow);
  backdrop-filter: blur(10px);
}

.wp-block-group.is-style-tgcn-card:hover,
.tgcn-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--tgcn-shadow-hover);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.tgcn-smart-header {
  position: sticky;
  top: 12px;
  z-index: 20;
  margin-top: 10px;
  margin-bottom: 18px;
}

.tgcn-brand-lockup .wp-block-site-title {
  margin: 0;
}

.tgcn-brand-lockup .wp-block-site-title a {
  color: var(--tgcn-text);
  text-decoration: none;
}

.tgcn-brand-lockup .wp-block-site-tagline {
  margin: 4px 0 0;
  color: var(--tgcn-muted);
}

.tgcn-header-tools {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tgcn-header-search {
  min-width: 240px;
}

.tgcn-header-search .wp-block-search__inside-wrapper {
  border: 1px solid var(--tgcn-border);
  border-radius: 999px;
  background: var(--tgcn-surface-soft);
}

.tgcn-header-search .wp-block-search__input {
  border: 0;
  background: transparent;
  color: var(--tgcn-text);
}

.tgcn-header-search .wp-block-search__button {
  border: 0;
  border-radius: 999px;
  padding: 0.56rem 1rem;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  color: #fff;
}

.tgcn-theme-toggle {
  border: 1px solid var(--tgcn-border);
  border-radius: 999px;
  background: var(--tgcn-surface-soft);
  color: var(--tgcn-text);
  min-height: 40px;
  padding: 0 14px;
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
}

.tgcn-theme-toggle:hover {
  background: color-mix(in srgb, var(--tgcn-surface-soft) 78%, var(--tgcn-primary) 22%);
}

.tgcn-main-nav .wp-block-navigation-item__content {
  font-size: 0.96rem;
  color: var(--tgcn-text);
}

.tgcn-main-nav .wp-block-navigation-item__content:hover {
  color: var(--tgcn-primary);
}

.tgcn-trending-row {
  margin-top: 12px;
}

.tgcn-smart-chip {
  border: 1px solid var(--tgcn-border);
  border-radius: 999px;
  padding: 7px 12px;
  background: var(--tgcn-surface-soft);
  color: var(--tgcn-muted);
  font-size: 0.76rem;
}

.tgcn-home-shell {
  padding-top: 4px;
  padding-bottom: 46px;
}

.tgcn-home-intro {
  margin-bottom: 16px;
}

.tgcn-home-intro p {
  margin: 0;
  color: var(--tgcn-muted);
  max-width: 720px;
}

.tgcn-hero-main {
  overflow: hidden;
}

.tgcn-hero-main .wp-block-post-featured-image img {
  border-radius: calc(var(--tgcn-radius-sm) + 2px);
}

.tgcn-hero-main .wp-block-post-title {
  margin-top: 16px;
  margin-bottom: 10px;
  line-height: 1.1;
  font-size: clamp(1.7rem, 2.8vw, 2.65rem);
}

.tgcn-hero-main .wp-block-post-title a {
  text-decoration: none;
  color: var(--tgcn-text);
}

.tgcn-hero-main .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-meta-row {
  color: var(--tgcn-muted);
  font-size: 0.85rem;
  gap: 10px;
}

.tgcn-side-stack {
  display: grid;
  gap: 12px;
}

.tgcn-briefing {
  background: var(--tgcn-gradient);
}

.tgcn-briefing h3,
.tgcn-briefing p,
.tgcn-briefing li {
  color: var(--tgcn-text);
}

.tgcn-live-card h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.tgcn-live-item {
  display: grid;
  gap: 6px;
  padding-bottom: 10px;
  margin-bottom: 10px;
  border-bottom: 1px dashed var(--tgcn-border);
}

.tgcn-live-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

.tgcn-live-item .wp-block-post-title {
  margin: 0;
  font-size: 0.98rem;
  line-height: 1.35;
}

.tgcn-live-item .wp-block-post-title a {
  text-decoration: none;
  color: var(--tgcn-text);
}

.tgcn-live-item .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-section-head {
  margin-top: 16px;
  margin-bottom: 14px;
}

.tgcn-section-head .wp-block-heading {
  margin-bottom: 5px;
  font-size: clamp(1.45rem, 2.2vw, 2rem);
}

.tgcn-section-head p {
  margin: 0;
  color: var(--tgcn-muted);
}

.tgcn-discover-grid .wp-block-group.is-style-tgcn-card {
  height: 100%;
}

.tgcn-discover-grid .wp-block-post-featured-image {
  margin-bottom: 12px;
}

.tgcn-discover-grid .wp-block-post-featured-image img {
  border-radius: calc(var(--tgcn-radius-xs) + 1px);
}

.tgcn-discover-grid .wp-block-post-title {
  margin: 0 0 8px;
  line-height: 1.28;
  font-size: 1.1rem;
}

.tgcn-discover-grid .wp-block-post-title a {
  color: var(--tgcn-text);
  text-decoration: none;
}

.tgcn-discover-grid .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-discover-grid .wp-block-post-excerpt {
  color: var(--tgcn-muted);
  font-size: 0.93rem;
}

.tgcn-stream-card .wp-block-latest-posts {
  margin: 0;
}

.tgcn-stream-card .wp-block-latest-posts__list li {
  margin-bottom: 10px;
}

.tgcn-stream-card .wp-block-latest-posts__post-title {
  color: var(--tgcn-text);
  text-decoration: none;
  line-height: 1.35;
}

.tgcn-stream-card .wp-block-latest-posts__post-title:hover {
  text-decoration: underline;
}

.tgcn-community-card ul {
  margin: 0;
  padding-left: 18px;
}

.tgcn-community-card li {
  margin-bottom: 8px;
  color: var(--tgcn-text);
}

.tgcn-community-card .wp-block-buttons {
  margin-top: 14px;
}

.tgcn-community-card .wp-block-button__link {
  border-radius: 999px;
  background: var(--tgcn-surface-soft);
  color: var(--tgcn-text);
  border: 1px solid var(--tgcn-border);
  font-size: 0.82rem;
  padding: 0.52rem 0.9rem;
}

.tgcn-community-card .wp-block-button__link:hover {
  background: color-mix(in srgb, var(--tgcn-primary) 14%, var(--tgcn-surface-soft) 86%);
}

.tgcn-entity-pill .wp-block-button__link {
  border-radius: 999px;
  padding: 0.54rem 1rem;
  background: rgba(15, 23, 42, 0.06);
  color: var(--tgcn-text);
  border: 1px solid var(--tgcn-border);
  font-size: 0.84rem;
}

.tgcn-entity-pill .wp-block-button__link:hover {
  background: color-mix(in srgb, var(--tgcn-primary) 15%, var(--tgcn-surface-soft) 85%);
}

.tgcn-article-shell {
  max-width: 1240px;
}

.tgcn-article-main .wp-block-post-title {
  margin-top: 6px;
  margin-bottom: 8px;
  line-height: 1.07;
  font-size: clamp(2rem, 4vw, 3.1rem);
}

.tgcn-reading-pill {
  display: inline-flex;
  align-items: center;
  margin-left: 10px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--tgcn-surface-soft);
  border: 1px solid var(--tgcn-border);
}

.tgcn-article-main .wp-block-post-featured-image img {
  border-radius: var(--tgcn-radius-md);
}

.tgcn-ai-summary {
  border-left: 4px solid var(--tgcn-primary);
  background: var(--tgcn-gradient);
  border-radius: 0 var(--tgcn-radius-sm) var(--tgcn-radius-sm) 0;
}

#tgcn-dynamic-toc {
  border: 1px solid var(--tgcn-border);
  border-radius: var(--tgcn-radius-sm);
  padding: 12px 14px;
  background: var(--tgcn-surface-soft);
  margin: 16px 0 18px;
}

#tgcn-dynamic-toc:empty {
  display: none;
}

#tgcn-dynamic-toc strong {
  display: block;
  margin-bottom: 8px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--tgcn-muted);
}

#tgcn-dynamic-toc a {
  display: block;
  color: var(--tgcn-text);
  text-decoration: none;
  margin-bottom: 8px;
  font-size: 0.92rem;
  line-height: 1.3;
}

#tgcn-dynamic-toc a:last-child {
  margin-bottom: 0;
}

#tgcn-dynamic-toc a[data-level="3"] {
  padding-left: 14px;
  color: var(--tgcn-muted);
}

#tgcn-dynamic-toc a:hover {
  color: var(--tgcn-primary);
}

.tgcn-article-main .wp-block-post-content {
  max-width: 780px;
}

.tgcn-article-main .wp-block-post-content p,
.tgcn-article-main .wp-block-post-content li {
  font-size: clamp(1.03rem, 1.2vw, 1.2rem);
  line-height: 1.85;
}

.tgcn-faq details {
  border: 1px solid var(--tgcn-border);
  border-radius: var(--tgcn-radius-sm);
  padding: 12px 14px;
  margin-bottom: 10px;
  background: var(--tgcn-surface);
}

.tgcn-faq summary {
  cursor: pointer;
  font-weight: 600;
}

.tgcn-sidebar .wp-block-group.is-style-tgcn-card {
  margin-bottom: 14px;
}

.tgcn-sidebar .wp-block-post-title {
  margin: 0 0 10px;
  line-height: 1.32;
}

.tgcn-sidebar .wp-block-post-title a {
  text-decoration: none;
  color: var(--tgcn-text);
}

.tgcn-sidebar .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-newsletter-form {
  display: grid;
  gap: 8px;
}

.tgcn-newsletter-form input {
  border: 1px solid var(--tgcn-border);
  border-radius: 10px;
  background: var(--tgcn-surface-soft);
  color: var(--tgcn-text);
  padding: 10px 11px;
}

.tgcn-newsletter-form button {
  border: 0;
  border-radius: 10px;
  color: #fff;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  padding: 10px 11px;
  cursor: pointer;
}

.tgcn-search-shell .wp-block-query-title {
  margin-bottom: 12px;
}

.tgcn-search-shell .wp-block-search__inside-wrapper {
  border-radius: 999px;
  border: 1px solid var(--tgcn-border);
  background: var(--tgcn-surface-soft);
  padding: 4px;
}

.tgcn-search-shell .wp-block-search__input {
  background: transparent;
  color: var(--tgcn-text);
  border: 0;
}

.tgcn-search-shell .wp-block-search__button {
  border: 0;
  border-radius: 999px;
  padding: 0.52rem 1.1rem;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  color: #fff;
}

.tgcn-footer {
  margin-top: 20px;
  border-radius: var(--tgcn-radius-lg) var(--tgcn-radius-lg) 0 0;
}

.tgcn-footer a {
  color: #d6e3ff;
}

.tgcn-mobile-nav {
  display: none;
}

@media (min-width: 1024px) {
  .tgcn-sidebar {
    position: sticky;
    top: 102px;
    align-self: flex-start;
  }
}

@media (max-width: 1100px) {
  .tgcn-header-search {
    min-width: 190px;
  }
}

@media (max-width: 781px) {
  body {
    padding-bottom: 92px;
  }

  .tgcn-smart-header {
    position: static;
  }

  .tgcn-header-tools {
    width: 100%;
    justify-content: space-between;
  }

  .tgcn-header-search {
    min-width: 0;
    flex: 1;
  }

  .tgcn-main-nav {
    margin-top: 8px;
  }

  .tgcn-home-shell {
    padding-bottom: 36px;
  }

  .tgcn-hero-main .wp-block-post-title {
    font-size: 1.72rem;
  }

  .tgcn-article-main .wp-block-post-title {
    font-size: 2rem;
  }

  .tgcn-article-main .wp-block-post-content p,
  .tgcn-article-main .wp-block-post-content li {
    font-size: 1.05rem;
    line-height: 1.78;
  }

  .tgcn-mobile-nav {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    position: fixed;
    left: 50%;
    bottom: 10px;
    transform: translateX(-50%);
    width: calc(100% - 18px);
    max-width: 560px;
    gap: 2px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    background: rgba(10, 18, 34, 0.9);
    box-shadow: 0 14px 34px rgba(4, 8, 18, 0.45);
    backdrop-filter: blur(14px);
    z-index: 999;
    padding: 8px 6px;
  }

  .tgcn-mobile-nav a {
    text-align: center;
    color: #d8e7ff;
    text-decoration: none;
    font-size: 0.69rem;
    letter-spacing: 0.01em;
    line-height: 1.25;
    padding: 4px 2px;
  }

  .tgcn-mobile-nav a:hover,
  .tgcn-mobile-nav a:focus {
    color: #fff;
  }
}

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

/* Motion and reading experience */
.tgcn-reading-progress {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 25;
  border-radius: 999px;
  background: color-mix(in srgb, var(--tgcn-surface-soft) 82%, transparent 18%);
  overflow: hidden;
}

.tgcn-reading-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  transition: width 90ms linear;
}

.tgcn-reveal {
  opacity: 0;
  transform: translateY(18px);
}

.tgcn-reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 420ms ease, transform 420ms ease;
}

@media (prefers-reduced-motion: reduce) {
  .tgcn-reveal,
  .tgcn-reveal.is-visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* Demo-parity UI polish loop */
.tgcn-live-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--tgcn-border);
  background: var(--tgcn-surface-soft);
  color: var(--tgcn-muted);
  font-size: 0.76rem;
  line-height: 1;
  white-space: nowrap;
}

.tgcn-live-status strong {
  color: var(--tgcn-text);
  font-size: 0.74rem;
}

.tgcn-live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ff3d5e;
  box-shadow: 0 0 0 6px rgba(255, 61, 94, 0.18);
  animation: tgcnPulse 1.9s ease-in-out infinite;
}

@keyframes tgcnPulse {
  0% { box-shadow: 0 0 0 0 rgba(255, 61, 94, 0.34); }
  70% { box-shadow: 0 0 0 8px rgba(255, 61, 94, 0); }
  100% { box-shadow: 0 0 0 0 rgba(255, 61, 94, 0); }
}

.tgcn-metrics-row .wp-block-group.is-style-tgcn-card {
  min-height: 100%;
}

.tgcn-metrics-row p {
  margin: 0;
}

.tgcn-metrics-row p strong {
  color: var(--tgcn-text);
  font-size: 1.08rem;
}

.tgcn-discover-grid {
  align-items: stretch;
}

.tgcn-discover-grid .wp-block-post-template > li:nth-child(1),
.tgcn-discover-grid .wp-block-post-template > li:nth-child(2) {
  grid-column: span 1;
}

@media (min-width: 1024px) {
  .tgcn-discover-grid .wp-block-post-template > li:first-child {
    grid-column: span 2;
  }

  .tgcn-discover-grid .wp-block-post-template > li:first-child .wp-block-post-title {
    font-size: 1.35rem;
    line-height: 1.24;
  }
}

.tgcn-discover-grid .wp-block-post-featured-image img,
.tgcn-hero-main .wp-block-post-featured-image img,
.tgcn-article-main .wp-block-post-featured-image img {
  width: 100%;
  object-fit: cover;
}

.tgcn-ai-summary {
  border: 1px solid color-mix(in srgb, var(--tgcn-primary) 34%, var(--tgcn-border));
}

.tgcn-ai-summary h3 {
  margin-bottom: 10px;
  font-size: 1.02rem;
}

.tgcn-ai-takeaways {
  margin: 0;
  padding-left: 18px;
}

.tgcn-ai-takeaways li {
  margin-bottom: 8px;
  line-height: 1.65;
}

.tgcn-ai-takeaways li:last-child {
  margin-bottom: 0;
}

.tgcn-community-card .wp-block-button__link,
.tgcn-entity-pill .wp-block-button__link {
  transition: background 180ms ease, transform 180ms ease;
}

.tgcn-community-card .wp-block-button__link:hover,
.tgcn-entity-pill .wp-block-button__link:hover {
  transform: translateY(-1px);
}

@media (max-width: 781px) {
  .tgcn-live-status {
    display: none;
  }

  .tgcn-metrics-row {
    margin-top: 6px;
  }

  .tgcn-discover-grid .wp-block-post-title {
    font-size: 1.04rem;
  }
}

/* Accessibility refinement */
:where(a, button, input, textarea, select, [role="button"]):focus-visible {
  outline: 2px solid color-mix(in srgb, var(--tgcn-primary) 84%, #ffffff 16%);
  outline-offset: 2px;
}

.wp-element-button:focus-visible,
.tgcn-theme-toggle:focus-visible,
.wp-block-search__button:focus-visible {
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--tgcn-primary) 22%, transparent 78%);
}

.tgcn-card,
.wp-block-group.is-style-tgcn-card {
  isolation: isolate;
}

/* Category stream UI loop */
.tgcn-category-shell {
  padding-bottom: 40px;
}

.tgcn-category-hero p {
  color: var(--tgcn-muted);
  margin-bottom: 0;
}

.tgcn-category-hero .wp-block-query-title {
  margin-top: 8px;
  margin-bottom: 8px;
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  line-height: 1.1;
}

.tgcn-category-grid .wp-block-post-title {
  margin: 8px 0;
  font-size: 1.15rem;
  line-height: 1.3;
}

.tgcn-category-grid .wp-block-post-title a {
  color: var(--tgcn-text);
  text-decoration: none;
}

.tgcn-category-grid .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-category-grid .wp-block-post-excerpt {
  color: var(--tgcn-muted);
  font-size: 0.94rem;
}

.tgcn-category-grid .wp-block-query-pagination {
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--tgcn-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tgcn-category-grid .wp-block-query-pagination a,
.tgcn-category-grid .wp-block-query-pagination .page-numbers {
  border: 1px solid var(--tgcn-border);
  border-radius: 999px;
  padding: 6px 11px;
  text-decoration: none;
  color: var(--tgcn-text);
  background: var(--tgcn-surface-soft);
}

.tgcn-category-grid .wp-block-query-pagination .current {
  color: #fff;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  border-color: transparent;
}

@media (max-width: 900px) {
  .tgcn-category-grid .wp-block-post-template {
    grid-template-columns: 1fr;
  }
}

/* Heartbeat loop: mobile spacing + typography + card hierarchy */
@media (max-width: 781px) {
  body {
    padding-bottom: 102px;
  }

  .tgcn-home-intro .wp-block-heading {
    font-size: clamp(1.9rem, 7.2vw, 2.35rem);
    line-height: 1.08;
  }

  .tgcn-article-main .wp-block-post-title {
    font-size: 2.12rem;
    line-height: 1.06;
  }

  .tgcn-article-main .wp-block-post-content p,
  .tgcn-article-main .wp-block-post-content li {
    font-size: 1.1rem;
    line-height: 1.84;
  }

  .tgcn-discover-grid .wp-block-post-title {
    font-size: 1.1rem;
    line-height: 1.32;
  }

  .tgcn-discover-grid .wp-block-post-template,
  .tgcn-category-grid .wp-block-post-template {
    row-gap: 14px;
  }

  .tgcn-mobile-nav {
    width: calc(100% - 12px);
    gap: 4px;
    border-radius: 22px;
    padding: 10px 8px 9px;
  }

  .tgcn-mobile-nav a {
    font-size: 0.74rem;
    line-height: 1.3;
    padding: 5px 2px;
  }
}

@media (min-width: 1024px) {
  .tgcn-discover-grid .wp-block-post-template > li:first-child .is-style-tgcn-card,
  .tgcn-category-grid .wp-block-post-template > li:first-child .is-style-tgcn-card {
    border-color: color-mix(in srgb, var(--tgcn-primary) 34%, var(--tgcn-border));
    box-shadow: 0 22px 42px rgba(12, 21, 40, 0.14);
  }

  .tgcn-discover-grid .wp-block-post-template > li:first-child .wp-block-post-featured-image,
  .tgcn-category-grid .wp-block-post-template > li:first-child .wp-block-post-featured-image {
    margin-bottom: 14px;
  }

  .tgcn-discover-grid .wp-block-post-template > li:first-child .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-template > li:first-child .wp-block-post-title {
    font-size: 1.36rem;
    line-height: 1.22;
  }
}

/* Breakpoint-specific mobile parity (430 / 390 / 360) */
@media (max-width: 430px) {
  .tgcn-smart-header {
    margin-bottom: 12px;
  }

  .tgcn-home-shell {
    padding-bottom: 34px;
  }

  .tgcn-home-intro .wp-block-heading {
    font-size: clamp(1.84rem, 7vw, 2.2rem);
  }

  .tgcn-meta-row {
    gap: 8px;
  }

  .tgcn-discover-grid .wp-block-group.is-style-tgcn-card,
  .tgcn-category-grid .wp-block-group.is-style-tgcn-card {
    padding: 13px;
  }
}

@media (max-width: 390px) {
  .tgcn-home-intro .wp-block-heading {
    font-size: clamp(1.74rem, 7.2vw, 2.06rem);
  }

  .tgcn-home-intro p,
  .tgcn-category-hero p {
    font-size: 0.98rem;
    line-height: 1.65;
  }

  .tgcn-article-main .wp-block-post-title {
    font-size: 1.95rem;
  }

  .tgcn-article-main .wp-block-post-content p,
  .tgcn-article-main .wp-block-post-content li {
    font-size: 1.04rem;
    line-height: 1.8;
  }

  .tgcn-mobile-nav a {
    letter-spacing: 0;
  }
}

@media (max-width: 360px) {
  body {
    padding-bottom: 108px;
  }

  .tgcn-smart-header {
    margin-top: 6px;
    border-radius: 18px;
  }

  .tgcn-home-intro .wp-block-heading {
    font-size: clamp(1.64rem, 7.4vw, 1.92rem);
    line-height: 1.07;
  }

  .tgcn-discover-grid .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-title {
    font-size: 1rem;
    line-height: 1.3;
  }

  .tgcn-mobile-nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    row-gap: 1px;
    padding-top: 9px;
  }

  .tgcn-mobile-nav a {
    font-size: 0.72rem;
    padding: 5px 1px;
  }
}

/* Heartbeat pass: mobile card rhythm tightening */
@media (max-width: 390px) {
  .tgcn-discover-grid .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-title {
    min-height: 2.55em;
    display: block;
  }

  .tgcn-discover-grid .wp-block-post-excerpt,
  .tgcn-category-grid .wp-block-post-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 4.6em;
  }

  .tgcn-discover-grid .wp-block-post-date,
  .tgcn-category-grid .wp-block-post-date {
    font-size: 0.8rem;
  }
}

@media (max-width: 360px) {
  .tgcn-discover-grid .wp-block-post-excerpt,
  .tgcn-category-grid .wp-block-post-excerpt {
    -webkit-line-clamp: 2;
    min-height: 3.2em;
    margin-bottom: 6px;
  }

  .tgcn-discover-grid .wp-block-post-featured-image,
  .tgcn-category-grid .wp-block-post-featured-image {
    margin-bottom: 9px;
  }
}

/* Search hierarchy pass */
.tgcn-search-shell > p {
  margin-top: 0;
  margin-bottom: 10px;
  color: var(--tgcn-muted);
}

.tgcn-search-grid {
  align-items: stretch;
  margin-top: 10px;
}

.tgcn-search-grid .wp-block-group.is-style-tgcn-card {
  height: 100%;
}

.tgcn-search-grid .wp-block-post-featured-image {
  margin-bottom: 11px;
}

.tgcn-search-grid .wp-block-post-title {
  margin: 8px 0;
  font-size: 1.1rem;
  line-height: 1.3;
}

.tgcn-search-grid .wp-block-post-title a {
  color: var(--tgcn-text);
  text-decoration: none;
}

.tgcn-search-grid .wp-block-post-title a:hover {
  text-decoration: underline;
}

.tgcn-search-grid .wp-block-post-excerpt {
  color: var(--tgcn-muted);
  font-size: 0.93rem;
}

.tgcn-search-grid .wp-block-query-pagination {
  grid-column: 1 / -1;
  margin-top: 8px;
  padding-top: 10px;
  border-top: 1px solid var(--tgcn-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tgcn-search-grid .wp-block-query-pagination a,
.tgcn-search-grid .wp-block-query-pagination .page-numbers {
  border: 1px solid var(--tgcn-border);
  border-radius: 999px;
  padding: 6px 11px;
  text-decoration: none;
  color: var(--tgcn-text);
  background: var(--tgcn-surface-soft);
}

.tgcn-search-grid .wp-block-query-pagination .current {
  color: #fff;
  background: linear-gradient(120deg, var(--tgcn-primary), var(--tgcn-secondary));
  border-color: transparent;
}

@media (min-width: 1024px) {
  .tgcn-search-grid .wp-block-post-template > li:first-child {
    grid-column: span 2;
  }

  .tgcn-search-grid .wp-block-post-template > li:first-child .is-style-tgcn-card {
    border-color: color-mix(in srgb, var(--tgcn-primary) 34%, var(--tgcn-border));
    box-shadow: 0 22px 42px rgba(12, 21, 40, 0.14);
  }

  .tgcn-search-grid .wp-block-post-template > li:first-child .wp-block-post-title {
    font-size: 1.32rem;
    line-height: 1.22;
  }
}

@media (max-width: 781px) {
  .tgcn-search-grid .wp-block-post-template {
    grid-template-columns: 1fr;
    row-gap: 14px;
  }

  .tgcn-search-grid .wp-block-post-title {
    font-size: 1.04rem;
  }
}

/* UI parity loop v0.4.0: mobile spacing, type rhythm, card hierarchy */
.tgcn-discover-grid .wp-block-post-excerpt,
.tgcn-category-grid .wp-block-post-excerpt,
.tgcn-search-grid .wp-block-post-excerpt {
  line-height: 1.62;
  margin-bottom: 8px;
}

@media (min-width: 1024px) {
  .tgcn-category-grid .wp-block-post-template > li:first-child,
  .tgcn-search-grid .wp-block-post-template > li:first-child {
    grid-column: span 2;
  }

  .tgcn-category-grid .wp-block-post-template > li:first-child .wp-block-post-title,
  .tgcn-search-grid .wp-block-post-template > li:first-child .wp-block-post-title {
    font-size: 1.34rem;
    line-height: 1.22;
  }

  .tgcn-category-grid .wp-block-post-template > li:first-child .wp-block-post-excerpt,
  .tgcn-search-grid .wp-block-post-template > li:first-child .wp-block-post-excerpt {
    font-size: 0.98rem;
  }
}

@media (min-width: 1200px) {
  .tgcn-discover-grid .wp-block-post-template > li:first-child {
    grid-column: span 2;
  }

  .tgcn-discover-grid .wp-block-post-template > li:first-child .wp-block-post-title {
    font-size: 1.44rem;
    line-height: 1.2;
  }
}

@media (max-width: 781px) {
  .tgcn-discover-grid .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-title,
  .tgcn-search-grid .wp-block-post-title {
    font-size: 1.08rem;
    line-height: 1.3;
    margin: 6px 0 7px;
  }

  .tgcn-discover-grid .wp-block-post-template,
  .tgcn-category-grid .wp-block-post-template,
  .tgcn-search-grid .wp-block-post-template {
    row-gap: 14px;
  }

  .tgcn-discover-grid .wp-block-group.is-style-tgcn-card,
  .tgcn-category-grid .wp-block-group.is-style-tgcn-card,
  .tgcn-search-grid .wp-block-group.is-style-tgcn-card {
    padding: 13px;
  }
}

@media (max-width: 430px) {
  .tgcn-discover-grid .wp-block-group.is-style-tgcn-card,
  .tgcn-category-grid .wp-block-group.is-style-tgcn-card,
  .tgcn-search-grid .wp-block-group.is-style-tgcn-card {
    border-radius: 18px;
  }

  .tgcn-discover-grid .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-title,
  .tgcn-search-grid .wp-block-post-title {
    font-size: 1.04rem;
    line-height: 1.3;
  }

  .tgcn-discover-grid .wp-block-post-excerpt,
  .tgcn-category-grid .wp-block-post-excerpt,
  .tgcn-search-grid .wp-block-post-excerpt {
    font-size: 0.91rem;
    line-height: 1.62;
  }
}

@media (max-width: 390px) {
  .tgcn-discover-grid .wp-block-post-title,
  .tgcn-category-grid .wp-block-post-title,
  .tgcn-search-grid .wp-block-post-title {
    min-height: 2.55em;
    display: block;
  }

  .tgcn-discover-grid .wp-block-post-excerpt,
  .tgcn-category-grid .wp-block-post-excerpt,
  .tgcn-search-grid .wp-block-post-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 4.6em;
  }

  .tgcn-discover-grid .wp-block-post-date,
  .tgcn-category-grid .wp-block-post-date,
  .tgcn-search-grid .wp-block-post-date {
    font-size: 0.8rem;
  }
}

@media (max-width: 360px) {
  .tgcn-discover-grid .wp-block-post-excerpt,
  .tgcn-category-grid .wp-block-post-excerpt,
  .tgcn-search-grid .wp-block-post-excerpt {
    -webkit-line-clamp: 2;
    min-height: 3.2em;
    margin-bottom: 6px;
  }

  .tgcn-discover-grid .wp-block-post-featured-image,
  .tgcn-category-grid .wp-block-post-featured-image,
  .tgcn-search-grid .wp-block-post-featured-image {
    margin-bottom: 9px;
  }
}

/* UI parity loop v0.4.1: explicit grid system + mobile toc rhythm */
.tgcn-discover-grid .wp-block-post-template,
.tgcn-category-grid .wp-block-post-template,
.tgcn-search-grid .wp-block-post-template {
  list-style: none;
  margin: 0;
  padding: 0;
}

.tgcn-discover-grid .wp-block-post-template {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  column-gap: 16px;
  row-gap: 16px;
}

.tgcn-category-grid .wp-block-post-template,
.tgcn-search-grid .wp-block-post-template {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 16px;
  row-gap: 16px;
}

.tgcn-discover-grid .wp-block-post-template > li,
.tgcn-category-grid .wp-block-post-template > li,
.tgcn-search-grid .wp-block-post-template > li {
  margin: 0;
  min-width: 0;
}

@media (max-width: 1100px) {
  .tgcn-discover-grid .wp-block-post-template {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 1023px) {
  .tgcn-discover-grid .wp-block-post-template > li:first-child,
  .tgcn-category-grid .wp-block-post-template > li:first-child,
  .tgcn-search-grid .wp-block-post-template > li:first-child {
    grid-column: auto;
  }
}

@media (max-width: 781px) {
  .tgcn-discover-grid .wp-block-post-template,
  .tgcn-category-grid .wp-block-post-template,
  .tgcn-search-grid .wp-block-post-template {
    grid-template-columns: 1fr;
    row-gap: 14px;
  }

  .tgcn-smart-header {
    margin-bottom: 10px;
  }

  #tgcn-dynamic-toc {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
  }

  #tgcn-dynamic-toc a {
    display: inline-flex;
    align-items: center;
    padding: 6px 10px;
    border-radius: 999px;
    background: var(--tgcn-surface-soft);
    border: 1px solid var(--tgcn-border);
    text-decoration: none;
    font-size: 0.82rem;
    line-height: 1.2;
  }
}

/* UI parity loop v0.4.2: fix query-wrapper grid conflict */
.tgcn-discover-grid.wp-block-query,
.tgcn-category-grid.wp-block-query,
.tgcn-search-grid.wp-block-query {
  display: block !important;
}

@media (max-width: 430px) {
  .tgcn-theme-toggle {
    display: none;
  }

  .tgcn-search-slot {
    min-width: 0;
  }
}