/*
 * 术语地图 — Components
 * ============================================================================
 * UI 组件样式，参照 BR-Theme 的卡片、按钮、标签、表格等模式。
 */

/* ==========================================================================
 * Buttons
 * ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding: 0.45em 0.9em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-family: var(--font-sans);
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.15s;
  white-space: nowrap;
  line-height: 1.4;
  text-decoration: none;
}

.btn:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-accent-soft);
  text-decoration: none;
}

.btn:active {
  background: var(--color-accent-bg);
}

/* Icon button */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.4em;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  font-size: 1.1em;
  line-height: 1;
  transition: background 0.15s, color 0.15s;
}

.btn-icon:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

/* ==========================================================================
 * Card (generic content card)
 * ========================================================================== */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.25em 1.5em;
  margin: 1.25em 0;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.card h3 { margin-top: 0; }

/* ==========================================================================
 * Track Card — BR-Theme .br-card pattern (left accent bar + hover lift)
 * ========================================================================== */
.track-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25em;
  margin: 1.5em 0;
}

.track-card {
  display: block;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 1.25em 1.5em;
  box-shadow: var(--shadow-sm);
  border-left: 4px solid var(--color-accent-soft);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s, box-shadow 0.2s;
}

.track-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.track-card .track-icon {
  font-size: 1.5em;
  margin-bottom: 0.5em;
}

.track-card .track-title-link {
  font-family: var(--font-serif);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  margin: 0 0 0.25em;
}

.track-card .track-title-link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.track-card .track-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  line-height: 1.5;
  margin-bottom: 0.75em;
}

.track-card .track-links {
  display: flex;
  gap: 0.5em;
  flex-wrap: wrap;
}

@media (max-width: 700px) {
  .track-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
 * Featured Card
 * ========================================================================== */
.featured-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1em;
  margin: 1.25em 0;
}

.featured-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.25em;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s;
}

.featured-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

.featured-card h4 {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.35em;
}

.featured-card p {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: 0.75em;
  line-height: 1.5;
}

@media (max-width: 700px) {
  .featured-grid { grid-template-columns: 1fr; }
}

/* ==========================================================================
 * Tags & Meta Chips — BR-Theme .br-tag pattern
 * ========================================================================== */
.tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 0.2em 0.65em;
  border-radius: 1em;
  background: var(--color-accent-bg);
  color: var(--color-accent-soft);
  font-weight: 500;
  margin-right: 0.35em;
  margin-bottom: 0.35em;
  border: 1px solid rgba(194, 81, 59, 0.12);
}

.tags {
  display: flex;
  gap: 0.35em;
  flex-wrap: wrap;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  align-items: center;
  margin-bottom: 0.5em;
}

.meta-row-secondary { margin-bottom: 0.75em; }

.meta-chip {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 0.15em 0.55em;
  border-radius: 1em;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-weight: 500;
  border: 1px solid rgba(74, 111, 165, 0.12);
}

.meta-chip-tag {
  background: var(--color-accent-bg);
  color: var(--color-accent-soft);
  border-color: rgba(194, 81, 59, 0.12);
}

.meta-text {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

.meta-text code { font-size: inherit; }

/* ==========================================================================
 * Callout — BR-Theme .br-callout pattern
 * ========================================================================== */
.callout {
  background: var(--color-accent-bg);
  border-left: 3px solid var(--color-accent);
  padding: 0.85em 1.25em;
  margin: 1.25em 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.callout strong { color: var(--color-accent); }

.callout-info {
  border-left-color: var(--color-primary);
  background: var(--color-primary-bg);
}

.callout-info strong { color: var(--color-primary); }

.callout-positive {
  border-left-color: var(--color-positive);
  background: var(--color-positive-bg);
}

.callout-positive strong { color: var(--color-positive); }

/* ==========================================================================
 * Stat Card — BR-Theme .br-stat-card pattern
 * ========================================================================== */
.stat-row {
  display: flex;
  gap: 0.85em;
  margin: 1.25em 0;
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 110px;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  padding: 1em;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
}

.stat-number {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1.1;
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  letter-spacing: 0.5px;
  margin-top: 0.25em;
}

/* ==========================================================================
 * Page Hero
 * ========================================================================== */
.page-hero {
  text-align: center;
  padding: 2em 1em 1.5em;
}

.page-hero h1 {
  font-size: 2.5em;
  margin-bottom: 0.2em;
}

.page-hero .hero-subtitle {
  font-size: var(--font-size-base);
  color: var(--color-muted);
  margin-bottom: 0.5em;
}

.page-hero .hero-desc {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ==========================================================================
 * Loading / Error / Empty / Placeholder
 * ========================================================================== */
.loading-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 4em 1.5em;
  text-align: center;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-bottom: 1em;
}

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

.loading-text {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
}

.error-card {
  max-width: 600px;
  margin: 2em auto;
  padding: 2em;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.error-card .error-icon {
  width: 48px;
  height: 48px;
  line-height: 48px;
  text-align: center;
  font-size: 1.5em;
  font-weight: 700;
  color: var(--color-accent);
  background: var(--color-accent-bg);
  border-radius: 50%;
  margin-bottom: 1em;
}

.error-card h3 { color: var(--color-accent); margin-bottom: 0.75em; }

.error-detail {
  font-size: var(--font-size-sm);
  font-family: var(--font-mono);
  background: var(--color-bg);
  padding: 1em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-light);
  margin: 0.75em 0;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow-y: auto;
}

.error-hints {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0.75em 0;
  padding-left: 1.25em;
}

.error-hints li { margin-bottom: 0.35em; }

.placeholder-block {
  text-align: center;
  padding: 3em 1.5em;
  color: var(--color-muted);
}

.placeholder-block .placeholder-icon {
  font-size: 2.5em;
  margin-bottom: 0.5em;
}

.placeholder-block h3 {
  font-family: var(--font-sans);
  color: var(--color-text-secondary);
  margin-bottom: 0.5em;
}

.placeholder-block p { font-size: var(--font-size-sm); }

/* ==========================================================================
 * Doc Header
 * ========================================================================== */
.doc-header {
  margin-bottom: 2em;
  padding-bottom: 1.5em;
  border-bottom: 1px solid var(--color-border);
}

.doc-header h1 { margin-bottom: 0.35em; }

.doc-summary {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0.75em;
  line-height: 1.55;
}

/* ==========================================================================
 * Engineering Terms Doc — BR-Theme report styling
 * ========================================================================== */
.doc-page-zh-engineering-terms-map {
  max-width: 860px;
  margin: 0 auto;
}

.doc-page-zh-engineering-terms-map .doc-header {
  margin-bottom: 0.9em;
  padding-bottom: 1.5em;
  border-bottom: 1px solid var(--color-border);
}

.doc-page-zh-engineering-terms-map .doc-header h1 {
  font-family: var(--font-serif);
  font-size: var(--font-size-3xl);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: 0;
  margin: 0 0 0.35em;
}

.doc-page-zh-engineering-terms-map .doc-summary {
  display: none;
}

.doc-page-zh-engineering-terms-map .meta-chip {
  border-radius: 20px;
  background: var(--color-accent-bg);
  color: var(--color-accent-soft);
  border-color: rgba(194, 81, 59, 0.12);
}

.doc-page-zh-engineering-terms-map .meta-row .meta-chip:first-child {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border-color: rgba(74, 111, 165, 0.12);
}

.doc-page-zh-engineering-terms-map .markdown-body {
  color: var(--color-text-secondary);
  line-height: var(--line-height);
  padding-top: 1em;
}

.doc-page-zh-engineering-terms-map .markdown-body > h1 {
  display: none;
}

.doc-page-zh-engineering-terms-map .markdown-body > h1 + p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-base);
  line-height: 1.7;
  margin-bottom: 1.5em;
}

.doc-page-zh-engineering-terms-map .markdown-body h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 900;
  color: var(--color-primary);
  margin: 2em 0 0.7em;
  padding-bottom: 0 !important;
  border-bottom: 0 !important;
  line-height: 1.15;
}

.doc-page-zh-engineering-terms-map .markdown-body h2:first-of-type {
  margin-top: 0;
}

.doc-page-zh-engineering-terms-map .markdown-body h2::after {
  content: none !important;
  display: none !important;
}

.markdown-body h1,
.markdown-body h2,
.markdown-body h3,
.markdown-body h4,
.doc-header,
.category-header,
.search-header {
  scroll-margin-top: calc(var(--header-height) + 24px);
}

.doc-page-zh-engineering-terms-map .markdown-body table {
  display: table;
  width: 100%;
  margin: 0 0 2em;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 13.5px;
}

.doc-page-zh-engineering-terms-map .markdown-body thead th {
  background: var(--color-text);
  color: var(--color-bg);
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 12px 16px;
  border: 0;
}

.doc-page-zh-engineering-terms-map .markdown-body tbody td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  vertical-align: top;
  line-height: 1.55;
  white-space: normal;
}

.doc-page-zh-engineering-terms-map .markdown-body tbody tr:nth-child(even) {
  background: var(--color-surface-hover);
}

.doc-page-zh-engineering-terms-map .markdown-body tbody tr:last-child td {
  border-bottom: 0;
}

.doc-page-zh-engineering-terms-map .markdown-body tbody td:first-child {
  color: var(--color-text);
  font-weight: 700;
  white-space: nowrap;
}

@media (max-width: 700px) {
  .doc-page-zh-engineering-terms-map .markdown-body table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .doc-page-zh-engineering-terms-map .markdown-body tbody td {
    white-space: nowrap;
  }
}

/* ==========================================================================
 * Markdown Body — rendered document content
 * ========================================================================== */
.markdown-body {
  max-width: 100%;
  line-height: 1.75;
  color: var(--color-text-secondary);
}

.markdown-body h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--color-border-light);
}

.markdown-body h2 {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-top: 1.5em;
  margin-bottom: 0.5em;
  padding-bottom: 0.25em;
  border-bottom: 1px solid var(--color-border-light);
}

.markdown-body h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-top: 1.25em;
  margin-bottom: 0.5em;
}

.markdown-body h4 {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-top: 1em;
  margin-bottom: 0.5em;
}

.markdown-body p { margin: 0 0 0.75em; }

.markdown-body ul,
.markdown-body ol {
  padding-left: 1.5em;
  margin: 0.5em 0 1em;
}

.markdown-body li { margin-bottom: 0.25em; }

.markdown-body blockquote {
  margin: 1em 0;
  padding: 0.85em 1.25em;
  border-left: 3px solid var(--color-accent);
  background: var(--color-accent-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--color-text-secondary);
  font-size: 0.95em;
}

.markdown-body blockquote p:last-child { margin-bottom: 0; }

.markdown-body table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
  margin: 1em 0;
  display: block;
  overflow-x: auto;
}

.markdown-body thead th {
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--font-size-xs);
  font-weight: 500;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 0.75em 1em;
  text-align: left;
  white-space: nowrap;
}

.markdown-body tbody td {
  padding: 0.65em 1em;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.markdown-body tbody tr:nth-child(even) {
  background: var(--color-surface-hover);
}

.markdown-body pre {
  font-family: var(--font-mono);
  font-size: 0.85em;
  line-height: 1.55;
  padding: 1em 1.25em;
  border-radius: var(--radius-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow-x: auto;
  margin: 1em 0;
}

.markdown-body pre code {
  padding: 0;
  background: none;
  border-radius: 0;
  font-size: inherit;
  color: var(--color-text-secondary);
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  padding: 0.15em 0.4em;
  border-radius: var(--radius-xs);
  background: var(--color-code-bg);
  color: var(--color-code-text);
}

.markdown-body img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  margin: 0.75em 0;
}

.markdown-body a {
  color: var(--color-link);
  text-decoration: none;
}

.markdown-body a:hover { text-decoration: underline; }

.markdown-body hr {
  border: none;
  height: 1px;
  background: linear-gradient(
    to right,
    var(--color-accent) 0%,
    var(--color-accent) 60px,
    var(--color-border) 60px,
    transparent 100%
  );
  margin: 2em 0;
}

.markdown-body strong {
  color: var(--color-text);
  font-weight: 600;
}

/* ==========================================================================
 * Engineering Terms Overview — BR-Theme card language
 * ========================================================================== */
.terms-overview {
  margin: 1.75em 0 2.35em;
}

.terms-overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1em;
}

.terms-overview-card {
  --terms-accent: var(--color-accent);
  --terms-bg: var(--color-accent-bg);
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-top: 3px solid var(--terms-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.05em 1.15em 1.15em;
  min-height: 9.1em;
  overflow: hidden;
}

.terms-overview-card-accent { --terms-accent: var(--color-accent); --terms-bg: #FDF6F2; }
.terms-overview-card-primary { --terms-accent: var(--color-primary); --terms-bg: #F2F5FA; }
.terms-overview-card-positive { --terms-accent: var(--color-positive); --terms-bg: #F2F8F4; }
.terms-overview-card-neutral { --terms-accent: #8B7350; --terms-bg: #FAF6EC; }
.terms-overview-card-muted { --terms-accent: #9A6A7D; --terms-bg: #FBF3F7; }

.terms-overview-meta {
  display: flex;
  align-items: center;
  gap: 0.55em;
  margin-bottom: 0.65em;
  color: var(--terms-accent);
  font-size: var(--font-size-xs);
  font-weight: 700;
}

.terms-overview-meta span:first-child {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2em;
  height: 1.8em;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(28, 28, 28, 0.06);
  color: var(--terms-accent);
  font-family: var(--font-sans);
  font-size: 0.92em;
  letter-spacing: 0;
}

.terms-overview-meta span:last-child {
  color: var(--color-text-secondary);
  font-family: var(--font-sans);
  letter-spacing: 0.03em;
}

.terms-overview-card h3 {
  margin: 0 0 0.5em;
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 900;
  line-height: 1.28;
}

.terms-overview-card p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  line-height: 1.55;
}

.terms-overview-card .terms-overview-terms {
  margin-bottom: 0.5em;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
}

.terms-overview-foundation {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55em 1.1em;
  margin-top: 1.15em;
  padding: 0.95em 1.1em;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-xs);
  line-height: 1.55;
}

.terms-overview-foundation strong {
  color: var(--color-text);
  font-family: var(--font-serif);
  font-size: var(--font-size-base);
  font-weight: 900;
  margin-right: 0.3em;
}

@media (max-width: 900px) {
  .terms-overview-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .terms-overview-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
 * TOC Links
 * ========================================================================== */
.toc-list { list-style: none; padding: 0; margin: 0; }

.toc-item { margin-bottom: 0.15em; }

.toc-item a {
  display: block;
  padding: 0.25em 0;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  border-left: 2px solid transparent;
  padding-left: 0.75em;
  text-decoration: none;
  transition: color 0.15s, border-color 0.15s;
  cursor: pointer;
}

.toc-item a:hover {
  color: var(--color-text-secondary);
  text-decoration: none;
}

.toc-level-2 a { padding-left: 0.75em; }
.toc-level-3 a { padding-left: 1.5em; }

.toc-item a.active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
  font-weight: 500;
}

.toc-empty { font-size: var(--font-size-sm); color: var(--color-muted); }

/* ==========================================================================
 * Search Page
 * ========================================================================== */
.search-page { max-width: 100%; }

.search-header h1 { margin-bottom: 0.35em; }

.search-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  align-items: center;
  margin-bottom: 1.25em;
}

.search-empty {
  text-align: center;
  padding: 3em 1.5em;
  color: var(--color-muted);
}

.search-empty h2 {
  font-family: var(--font-sans);
  font-size: var(--font-size-xl);
  color: var(--color-text-secondary);
  margin-bottom: 0.5em;
}

.search-empty-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  max-width: 400px;
  margin: 0 auto;
}

.search-no-results {
  text-align: center;
  padding: 2em 1.5em;
  color: var(--color-muted);
}

.search-no-results h3 {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0.5em;
}

.search-no-results p { font-size: var(--font-size-sm); }

/* ── Filter chips ── */
.search-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4em;
  margin-bottom: 1.5em;
}

.filter-chip {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 0.3em 0.7em;
  border-radius: 1em;
  background: var(--color-surface);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.filter-chip:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-accent-soft);
}

.filter-chip.active {
  background: var(--color-accent-bg);
  color: var(--color-accent);
  border-color: var(--color-accent-soft);
  font-weight: 500;
}

.search-result-count {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-bottom: 1em;
}

.search-results {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
}

/* ── Search result card ── */
.search-result-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1em 1.25em;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.search-result-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
  text-decoration: none;
}

.search-result-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.35em;
  line-height: 1.4;
}

.search-result-snippet {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0.65em;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.matched-fields {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-top: 0.4em;
}

/* ── Highlight marks ── */
mark, .search-result-title mark, .search-result-snippet mark {
  background: #FFF3B0;
  color: inherit;
  padding: 0.05em 0.15em;
  border-radius: 2px;
}

[data-theme="dark"] mark,
[data-theme="dark"] .search-result-title mark,
[data-theme="dark"] .search-result-snippet mark {
  background: #5C4A1E;
  color: #FFE082;
}

.result-tag { cursor: pointer; transition: opacity 0.15s; }
.result-tag:hover { opacity: 0.75; }
.result-tag mark { background: transparent; color: inherit; font-weight: 700; text-decoration: underline; padding: 0; border-radius: 0; }

/* ==========================================================================
 * Category Page
 * ========================================================================== */
.category-page { max-width: 100%; }

.category-header {
  margin-bottom: 1.5em;
  padding-bottom: 1.25em;
  border-bottom: 1px solid var(--color-border);
}

.category-header h1 { margin-bottom: 0.25em; }

.category-header .category-desc {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0.75em;
  line-height: 1.55;
}

.category-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25em;
  margin-top: 0.75em;
}

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

.category-stat .stat-num {
  font-family: var(--font-serif);
  font-size: var(--font-size-2xl);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1.1;
}

.category-stat .stat-lbl {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  margin-top: 0.15em;
}

.category-tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35em;
  margin-bottom: 1.5em;
}

.category-tag-cloud .meta-chip { cursor: pointer; transition: opacity 0.15s; }
.category-tag-cloud .meta-chip:hover { opacity: 0.75; }

.category-doc-grid {
  display: flex;
  flex-direction: column;
  gap: 0.75em;
}

.category-doc-card {
  display: block;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.1em 1.25em;
  text-decoration: none;
  color: inherit;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.category-doc-card:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
  text-decoration: none;
}

.category-doc-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.3em;
}

.category-doc-summary {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0.6em;
  line-height: 1.5;
}

.category-doc-footer {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em;
  align-items: center;
}

.category-empty {
  text-align: center;
  padding: 2em 1.5em;
  color: var(--color-muted);
}

.category-empty h3 {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0.4em;
}

.category-empty p { font-size: var(--font-size-sm); }

.category-recommended {
  margin-bottom: 1.5em;
  padding: 1em 1.25em;
  background: var(--color-accent-bg);
  border: 1px solid var(--color-accent-soft);
  border-radius: var(--radius-md);
}

.category-recommended h3 {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin: 0 0 0.35em;
}

.category-recommended a { font-weight: 600; }

/* ==========================================================================
 * Raw Fallback (for debug only — should rarely appear)
 * ========================================================================== */
.raw-fallback pre {
  max-height: 70vh;
  overflow: auto;
  font-size: 0.82em;
  line-height: 1.6;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 1.25em 1.5em;
  margin-top: 1em;
}

.raw-fallback code {
  background: none;
  padding: 0;
  color: var(--color-text-secondary);
}

/* ==========================================================================
 * Round 12 — Resource Cards (grouped + media)
 * ========================================================================== */

/* ── Resource Page ── */
.resource-page { max-width: 100%; }

.resource-page-header {
  margin-bottom: 1.5em;
  padding-bottom: 1em;
  border-bottom: 1px solid var(--color-border-light);
}

.resource-page-header h1 { margin-bottom: 0.25em; }

.resource-intro {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: 0.5em;
  line-height: 1.55;
}

.resource-terms-callout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1em;
  margin: 0.75em 0;
  padding: 0.8em 1em;
  background: var(--color-primary-bg);
  border: 1px solid rgba(74, 111, 165, 0.16);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
}

.resource-terms-callout a {
  flex-shrink: 0;
  color: var(--color-primary);
  font-weight: 700;
  text-decoration: none;
}

.resource-terms-callout a:hover { text-decoration: underline; }

@media (max-width: 700px) {
  .resource-terms-callout {
    align-items: flex-start;
    flex-direction: column;
  }
}

.resource-count {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
}

/* ── Filter Bar ── */
.resource-filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1em;
  margin-bottom: 1.5em;
  padding: 1em 1.25em;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
}

.resource-filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35em;
}

.resource-filter-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-right: 0.25em;
}

.resource-filter-chip {
  font-size: var(--font-size-xs);
  padding: 0.25em 0.6em;
  border-radius: 1em;
  background: var(--color-bg);
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
  cursor: pointer;
  font-family: var(--font-sans);
  transition: background 0.15s, color 0.15s, border-color 0.15s;
  white-space: nowrap;
}

.resource-filter-chip:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
  border-color: var(--color-accent-soft);
}

.resource-filter-chip.active {
  background: var(--color-accent-bg);
  color: var(--color-accent);
  border-color: var(--color-accent-soft);
  font-weight: 500;
}

.resource-clear-filters {
  font-size: var(--font-size-xs);
  padding: 0.25em 0.6em;
  border-radius: 1em;
  background: transparent;
  color: var(--color-muted);
  border: 1px dashed var(--color-border);
  cursor: pointer;
  font-family: var(--font-sans);
  margin-left: auto;
  align-self: center;
  transition: color 0.15s, border-color 0.15s;
}

.resource-clear-filters:hover {
  color: var(--color-accent);
  border-color: var(--color-accent-soft);
}

/* ── Resource Group ── */
.resource-group {
  margin-bottom: 2.5em;
}

.resource-group-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.15em;
  padding-bottom: 0.35em;
  border-bottom: 2px solid var(--color-accent-soft);
}

.resource-group-desc {
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin: 0 0 1em;
}

/* ── Resource Grid ── */
.resource-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25em;
}

@media (max-width: 700px) {
  .resource-grid {
    grid-template-columns: 1fr;
  }
}

/* ── Resource Card ── */
.resource-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
  overflow: hidden;
}

.resource-card:hover {
  box-shadow: var(--shadow-md);
}

.resource-card-body {
  padding: 1.25em 1.5em;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.resource-card-header {
  margin-bottom: 0.5em;
}

.resource-card-title {
  font-family: var(--font-serif);
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.15em;
}

.resource-card-source {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.resource-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35em;
  margin-bottom: 0.65em;
}

.resource-badge {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 0.15em 0.55em;
  border-radius: 1em;
  font-weight: 500;
}

.resource-badge-type {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border: 1px solid rgba(74, 111, 165, 0.12);
}

.resource-badge-level {
  background: var(--color-positive-bg);
  color: var(--color-positive);
  border: 1px solid rgba(91, 140, 111, 0.12);
}

.resource-badge-lang {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid rgba(184, 134, 11, 0.12);
}

.resource-badge-track {
  background: var(--color-accent-bg);
  color: var(--color-accent-soft);
  border: 1px solid rgba(194, 81, 59, 0.12);
}

.resource-card-summary {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.55;
  margin-bottom: 0.5em;
}

.resource-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3em;
  margin-bottom: 0.75em;
}

.resource-tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  padding: 0.1em 0.5em;
  border-radius: 1em;
  background: var(--color-bg);
  color: var(--color-muted);
}

.resource-card-footer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-wrap: wrap;
  gap: 0.5em;
  padding-top: 0.35em;
  border-top: 0;
  margin-top: auto;
}

.resource-verified {
  display: none;
}

.resource-card-actions {
  display: flex;
  gap: 0.5em;
  width: 100%;
}

.resource-direct-link {
  display: inline-flex;
  align-items: center;
  padding: 0.4em 0.85em;
  border-radius: var(--radius-md);
  background: var(--color-accent);
  color: #fff;
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s;
  cursor: pointer;
}

.resource-direct-link:hover {
  background: var(--color-link-hover);
  color: #fff;
  text-decoration: none;
}

.resource-direct-link.disabled {
  background: var(--color-border);
  color: var(--color-muted);
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Resource Media / Thumbnails ── */
.resource-media {
  width: 100%;
  overflow: hidden;
  background: var(--color-bg);
  position: relative;
}

.resource-media-link {
  display: block;
  width: 100%;
  line-height: 0;
  cursor: pointer;
  text-decoration: none;
}

.resource-media-link:hover {
  text-decoration: none;
}

.resource-media-link.disabled {
  cursor: default;
  pointer-events: none;
}

.resource-media-img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.resource-video-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--color-surface-hover);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-muted);
  transition: background 0.15s;
}

.resource-media-placeholder-link:hover .resource-video-placeholder {
  background: var(--color-accent-bg);
  color: var(--color-accent);
}

.resource-video-icon {
  font-size: 2em;
  margin-bottom: 0.25em;
  opacity: 0.6;
}

.resource-video-label {
  font-size: var(--font-size-xs);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Resource Empty ── */
.resource-empty {
  text-align: center;
  padding: 2em;
  color: var(--color-muted);
}

/* ── Compact resource card (home page / category page) ── */
.resource-card-compact {
  padding: 0;
}

.resource-card-compact .resource-card-body {
  padding: 1em 1.25em;
}

.resource-card-compact h4 {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin: 0 0 0.15em;
}

.resource-card-compact p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin: 0.35em 0;
  line-height: 1.5;
}

/* ── Featured / Related resource sections ── */
.featured-resources,
.related-resources {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1em;
  margin: 1em 0;
}

@media (max-width: 700px) {
  .featured-resources,
  .related-resources {
    grid-template-columns: 1fr;
  }

  .resource-filter-bar {
    flex-direction: column;
    gap: 0.75em;
  }

  .resource-clear-filters {
    margin-left: 0;
    align-self: flex-start;
  }
}

/* ==========================================================================
 * Round Final — Homepage Resource Navigation Styles
 * ========================================================================== */

/* ── Home Page Container ── */
.home-page { max-width: 1180px; margin: 0 auto; }

/* ── Hero ── */
.home-hero {
  text-align: center;
  padding: 3em 1em 2em;
}

.home-hero-title {
  font-family: var(--font-serif);
  font-size: 2.5em;
  font-weight: 900;
  color: var(--color-text);
  margin: 0 0 0.2em;
  line-height: 1.2;
}

.home-hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  margin-bottom: 0.75em;
}

.home-hero-desc {
  font-size: var(--font-size-base);
  color: var(--color-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.6;
}

.home-terms-entry {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25em;
  margin: 0 auto 1.5em;
  padding: 1.25em 1.5em;
  max-width: 860px;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.home-terms-kicker {
  display: block;
  color: var(--color-accent);
  font-size: var(--font-size-xs);
  font-weight: 700;
  letter-spacing: 0.5px;
  margin-bottom: 0.25em;
}

.home-terms-entry h2 {
  font-family: var(--font-sans);
  font-size: var(--font-size-lg);
  margin: 0 0 0.25em;
}

.home-terms-entry p {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.55;
  margin: 0;
}

.home-terms-entry-action {
  flex-shrink: 0;
  background: var(--color-accent);
  color: #fff;
}

.home-terms-entry-action:hover {
  background: var(--color-link-hover);
  color: #fff;
}

@media (max-width: 700px) {
  .home-terms-entry {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* ── Section ── */
.home-section {
  margin: 2.5em 0;
}

.home-section-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.75em;
  padding-bottom: 0.35em;
  border-bottom: 2px solid var(--color-accent-soft);
}

.home-subsection-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-secondary);
  margin: 1em 0 0.5em;
}

.home-resource-section {
  margin: 2.2em 0 2.6em;
}

.home-resource-section-title {
  display: block;
  font-family: var(--font-serif);
  font-size: 30px;
  font-weight: 900;
  line-height: 1.1;
  color: var(--color-accent);
  margin: 0 0 0.55em;
}

.home-resource-section-note {
  margin: -0.25em 0 1em;
  color: var(--color-muted);
  font-size: 13px;
  line-height: 1.5;
}

/* ── Video Grid ── */
.home-video-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25em;
}

@media (max-width: 1000px) {
  .home-video-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 750px) {
  .home-video-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .home-video-grid { grid-template-columns: 1fr; }
}

.home-video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.home-video-card:hover { box-shadow: var(--shadow-md); }

.home-video-card .resource-media { flex-shrink: 0; }

.home-card-body {
  padding: 1em 1.25em;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.home-card-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--color-text);
  margin: 0 0 0.15em;
  line-height: 1.35;
}

.home-card-source {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.home-card-career-stage {
  align-self: flex-start;
  margin: 0.5em 0 0;
  padding: 0;
  border-radius: 0;
  background: transparent;
  color: var(--color-primary);
  border: 0;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 1px !important;
}

.home-card-summary {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 0.35em 0 0.75em;
  flex: 1;
}

.home-card-body .resource-direct-link {
  align-self: flex-start;
  margin-top: auto;
}

.home-card-actions,
.resource-card-actions {
  display: flex;
  align-items: center;
  gap: 0.7em;
  flex-wrap: wrap;
  margin-top: auto;
}

.home-card-actions .resource-direct-link,
.resource-card-actions .resource-direct-link {
  margin-top: 0;
}

.resource-note-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-accent);
  padding: 0.48em 0.82em;
  font: inherit;
  font-size: var(--font-size-sm);
  font-weight: 800;
  line-height: 1.2;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.resource-note-link:hover {
  border-color: var(--color-accent);
  background: var(--color-primary-bg);
}

.resource-note-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1.2em;
}

.resource-note-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(22, 24, 31, 0.42);
}

.resource-note-panel {
  position: relative;
  width: min(760px, 100%);
  max-height: min(760px, 86vh);
  overflow: auto;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.4em 1.5em;
}

.resource-note-close {
  position: absolute;
  top: 0.75em;
  right: 0.75em;
  width: 2em;
  height: 2em;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 1.1em;
  cursor: pointer;
}

.resource-note-panel h2 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 900;
  margin: 0 2em 0.75em 0;
  color: var(--color-accent);
}

.resource-note-section {
  border-top: 1px solid var(--color-border-light);
  padding-top: 0.95em;
  margin-top: 0.95em;
}

.resource-note-section:first-of-type {
  border-top: 0;
  padding-top: 0;
}

.resource-note-section h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 0 0 0.45em;
}

.resource-note-section p,
.resource-note-section li {
  color: var(--color-text-secondary);
  line-height: 1.65;
}

.resource-note-section ul {
  margin: 0.45em 0 0;
  padding-left: 1.2em;
}

/* ── Resource Group Link Cards ── */
.home-group-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1em;
}

@media (max-width: 600px) {
  .home-group-links { grid-template-columns: repeat(2, 1fr); }
}

.home-group-link-card {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.5em 1em;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.home-group-link-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-soft);
  text-decoration: none;
}

.home-group-link-label {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-accent);
}

/* ── Timeline Table ── */
.home-timeline-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.home-timeline-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.home-timeline-table thead th {
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--font-size-xs);
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  padding: 0.75em 1em;
  text-align: left;
  white-space: nowrap;
}

.home-timeline-table tbody td {
  padding: 0.65em 1em;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.home-timeline-table tbody tr:nth-child(even) td {
  background: var(--color-surface-hover);
}

.timeline-year-cell {
  white-space: nowrap;
  font-weight: 700;
  color: var(--color-accent);
  width: 5em;
}

.timeline-event-cell a {
  font-weight: 600;
  color: var(--color-link);
  text-decoration: none;
}

.timeline-event-cell a:hover { text-decoration: underline; }

.timeline-impact-cell {
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* ── Mini Cards (People / Orgs / Works) ── */
.home-mini-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75em;
}

@media (max-width: 700px) {
  .home-mini-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 450px) {
  .home-mini-grid { grid-template-columns: 1fr; }
}

.mini-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 0.75em 1em;
  box-shadow: var(--shadow-sm);
}

.mini-card-link {
  text-decoration: none;
  color: inherit;
}

.mini-card-link:hover { text-decoration: none; }

.mini-card-link .mini-card-title {
  color: var(--color-link);
}

.mini-card-link:hover .mini-card-title {
  text-decoration: underline;
}

.mini-card-title {
  font-family: var(--font-sans);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text);
  display: block;
  margin-bottom: 0.2em;
}

.mini-card-summary {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  line-height: 1.45;
  margin: 0;
}

/* ── Other Tracks Entry ── */
.home-track-entry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1em;
}

@media (max-width: 700px) {
  .home-track-entry-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 400px) {
  .home-track-entry-grid { grid-template-columns: 1fr; }
}

.home-track-entry-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-md);
  padding: 1.5em 1em;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
}

.home-track-entry-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-soft);
  text-decoration: none;
}

.home-track-entry-icon {
  font-size: 1.8em;
  margin-bottom: 0.4em;
}

.home-track-entry-label {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.3em;
}

.home-track-entry-desc {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  line-height: 1.45;
}

/* ==========================================================================
 * Nice PDF Theme Polish
 * ============================================================================
 * Adapts the local nice-pdf visual language to the web app:
 * editorial type, warm paper surfaces, colored section accents, crisp cards.
 */

.btn,
.btn-icon,
.resource-filter-chip,
.resource-clear-filters,
.resource-direct-link {
  border-radius: var(--radius-md);
}

.btn-icon {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.58);
  border: 1px solid rgba(232, 217, 204, 0.8);
  box-shadow: var(--shadow-sm);
}

.btn-icon:hover {
  background: var(--color-surface);
  color: var(--color-accent);
  border-color: rgba(224, 122, 95, 0.28);
}

.home-page,
.resource-page,
.search-page {
  position: relative;
}

.home-hero {
  text-align: left;
  padding: 2.35em 0 1.1em;
  max-width: 860px;
  margin: 0 auto;
}

.home-hero::before {
  content: "ENGINEERING TERMS";
  display: block;
  margin-bottom: 0.65em;
  color: var(--color-accent);
  font-size: var(--font-size-xs);
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.home-hero-title {
  font-size: clamp(34px, 6vw, 72px);
  line-height: 1.02;
  max-width: 760px;
}

.home-terms-entry {
  max-width: 860px;
  padding: 1.15em 1.25em;
  background: var(--color-surface);
  border-left-color: var(--color-accent);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.home-terms-entry h2 {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 900;
  line-height: 1.2;
}

.home-terms-entry p {
  display: none;
}

.home-terms-kicker,
.resource-filter-label,
.resource-card-source,
.home-card-source,
.resource-video-label {
  letter-spacing: 0;
}

.resource-filter-bar {
  position: sticky;
  top: calc(var(--header-height) + 10px);
  z-index: 20;
  align-items: flex-start;
  gap: 0.85em 1.2em;
  margin: 0 auto 1.65em;
  padding: 1em;
  background: rgba(255, 255, 255, 0.82);
  border-color: rgba(232, 217, 204, 0.86);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.resource-filter-group {
  gap: 0.4em;
}

.resource-filter-label {
  width: 100%;
  margin: 0 0 0.15em;
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 800;
}

.resource-filter-chip {
  padding: 0.34em 0.7em;
  background: var(--color-surface-soft);
  border-color: rgba(232, 217, 204, 0.9);
  color: var(--color-text-secondary);
}

.resource-filter-chip:hover {
  background: var(--color-blush-bg);
  border-color: rgba(244, 172, 183, 0.65);
}

.resource-filter-chip.active {
  background: var(--color-charcoal);
  border-color: var(--color-charcoal);
  color: #FFF8F0;
}

.resource-group {
  margin-bottom: 2.25em;
}

.resource-group-title,
.home-section-title {
  display: none;
}

.resource-group-title::before,
.home-section-title::before {
  content: none;
}

.resource-group-desc {
  display: none;
}

.resource-grid {
  gap: 1.1em;
}

.resource-card,
.home-video-card,
.search-result-card,
.category-doc-card,
.card,
.mini-card,
.stat-card {
  border-radius: var(--radius-lg);
  border-color: rgba(232, 217, 204, 0.82);
  box-shadow: var(--shadow-sm);
}

.resource-card,
.home-video-card {
  position: relative;
  background: var(--color-surface);
  overflow: hidden;
}

.resource-media-action {
  position: absolute;
  bottom: 14px;
  right: 14px;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  padding: 0.42em 0.8em;
  border-radius: var(--radius-md);
  background: var(--color-charcoal);
  color: #FFF8F0;
  font-size: var(--font-size-sm);
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 8px 18px rgba(43, 45, 66, 0.18);
}

.resource-media-action:hover {
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
}

.resource-card::before,
.home-video-card::before {
  content: none;
}

.resource-card:nth-child(2n)::before,
.home-video-card:nth-child(2n)::before {
  background: var(--color-primary);
}

.resource-card:nth-child(3n)::before,
.home-video-card:nth-child(3n)::before {
  background: var(--color-sage);
}

.resource-card:hover,
.home-video-card:hover,
.search-result-card:hover,
.category-doc-card:hover {
  box-shadow: var(--shadow-lg);
  transform: none;
}

.resource-card-body,
.home-card-body {
  padding: 1.15em 1.25em 1.2em 1.45em;
}

.resource-card-title {
  font-family: var(--font-serif);
  font-size: 21px;
  font-weight: 900;
  line-height: 1.18;
}

.home-card-title {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.2;
}

.resource-card-summary,
.home-card-summary {
  color: var(--color-text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.resource-card-source,
.home-card-source {
  color: var(--color-primary);
  font-size: 11px;
  font-weight: 800;
}

.resource-media {
  background: var(--color-surface-soft);
  border-bottom: 1px solid var(--color-border-light);
}

.resource-media-img {
  filter: saturate(0.95) contrast(1.02);
  transition: filter 0.2s, transform 0.2s;
}

.resource-card:hover .resource-media-img,
.home-video-card:hover .resource-media-img {
  filter: saturate(1.05) contrast(1.04);
  transform: scale(1.015);
}

.resource-badge,
.resource-tag,
.meta-chip,
.tag {
  border-radius: 999px;
}

.resource-badge-type,
.meta-chip:first-child {
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.resource-badge-level {
  background: var(--color-sage-bg);
  color: var(--color-positive);
}

.resource-badge-lang {
  background: var(--color-blush-bg);
  color: #9A4F61;
}

.resource-badge-career {
  background: transparent;
  color: var(--color-primary);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
  letter-spacing: 1px !important;
}

.resource-tag {
  background: var(--color-surface-soft);
  color: var(--color-muted);
  border: 1px solid var(--color-border-light);
}

.resource-direct-link {
  background: var(--color-charcoal);
  color: #FFF8F0;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(43, 45, 66, 0.15);
  margin-top: 0.25em;
}

.resource-direct-link:hover {
  background: var(--color-accent);
  color: #fff;
}

.doc-page,
.search-page,
.category-page {
  max-width: var(--content-max-width);
  margin: 0 auto;
}

.doc-header,
.search-header,
.category-header {
  padding: 1.35em 1.45em;
  margin-bottom: 1.35em;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--color-border-light);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.doc-header h1,
.search-header h1,
.category-header h1 {
  font-size: clamp(28px, 4vw, 44px);
  line-height: 1.08;
}

.doc-summary,
.category-desc,
.search-empty-desc {
  font-family: var(--font-accent);
  font-size: 18px;
  color: var(--color-text-secondary);
}

.markdown-body {
  background: rgba(255, 255, 255, 0.52);
  border: 1px solid rgba(232, 217, 204, 0.72);
  border-radius: var(--radius-lg);
  padding: 1.35em 1.45em;
  box-shadow: var(--shadow-sm);
}

.markdown-body h2 {
  font-family: var(--font-serif);
  color: var(--color-primary);
  border-bottom: 0;
}

.markdown-body h2::after {
  content: none;
}

.markdown-body table,
.home-timeline-table {
  background: var(--color-surface);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-lg);
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.markdown-body thead th,
.home-timeline-table thead th,
thead th {
  background: var(--color-charcoal);
  color: #FFF8F0;
  letter-spacing: 0;
}

.search-result-card {
  background: rgba(255, 255, 255, 0.78);
  border-left: 4px solid var(--color-accent);
}

.search-result-title {
  font-family: var(--font-serif);
  font-weight: 900;
}

.site-footer {
  background: rgba(255, 255, 255, 0.45);
}

[data-theme="dark"] .resource-filter-bar,
[data-theme="dark"] .doc-header,
[data-theme="dark"] .search-header,
[data-theme="dark"] .category-header,
[data-theme="dark"] .markdown-body,
[data-theme="dark"] .search-result-card {
  background: rgba(42, 39, 36, 0.82);
}

[data-theme="dark"] .btn-icon {
  background: rgba(42, 39, 36, 0.72);
}

[data-theme="dark"] .resource-filter-chip.active,
[data-theme="dark"] .resource-direct-link {
  background: #E8E4DC;
  color: #2B2D42;
}

@media (max-width: 768px) {
  .home-hero {
    padding-top: 1.45em;
  }

  .home-hero-title {
    font-size: 40px;
  }

  .resource-filter-bar {
    position: static;
  }

  .resource-group-title,
  .home-section-title {
    font-size: 23px;
  }

  .resource-group-desc {
    margin-left: 0;
  }

  .markdown-body {
    padding: 1em;
  }
}

.site *,
.site *::before,
.site *::after {
  letter-spacing: 0 !important;
}