/* ===== Home Page ===== */
.hero {
  text-align: center;
  padding: 3.5rem 1.5rem 3rem;
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  margin-bottom: 2rem;
}

.hero-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.625rem;
  line-height: 1.2;
}

.hero-subtitle {
  font-size: 1.0625rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.5;
}

.hero-search {
  max-width: 560px;
  margin: 0 auto;
}

.hero-search input {
  width: 100%;
  padding: 0.875rem 1.25rem;
  font-size: 1.0625rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: inherit;
}

.hero-search input:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

/* ===== Page Header (category, feature, search) ===== */
.page-header {
  margin-bottom: 1.75rem;
}

.page-header h2 {
  margin-bottom: 0.375rem;
}

.page-description {
  color: var(--text-muted);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ===== Category Page ===== */
.category-controls {
  margin-bottom: 1.25rem;
}

.category-search-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.875rem;
}

#category-search {
  flex: 1;
  max-width: 400px;
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#category-search:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.category-stats {
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
}

/* ===== Feature Detail Page ===== */
.feature-support-matrix {
  margin-bottom: 2rem;
  overflow-x: auto;
}

.feature-support-matrix table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  min-width: 480px;
}

.feature-support-matrix thead tr {
  background: var(--bg-header);
}

.feature-support-matrix th {
  padding: 0.625rem 0.875rem;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-header);
  text-align: left;
  border-bottom: 2px solid var(--border);
}

.feature-support-matrix td {
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: middle;
}

.feature-support-matrix tbody tr:last-child td {
  border-bottom: none;
}

.feature-support-matrix tbody tr:hover td {
  background: var(--bg-alt);
}

.feature-support-matrix tbody tr[data-status="full"] td:first-child {
  border-left: 3px solid var(--status-full);
}

.feature-support-matrix tbody tr[data-status="partial"] td:first-child {
  border-left: 3px solid var(--status-partial);
}

.feature-support-matrix tbody tr[data-status="none"] td:first-child {
  border-left: 3px solid var(--status-none);
}

.feature-support-matrix tbody tr[data-status="extension"] td:first-child {
  border-left: 3px solid var(--status-extension);
}

.feature-support-matrix tbody tr[data-status="workaround"] td:first-child {
  border-left: 3px solid var(--status-workaround);
}

.feature-support-matrix td:first-child {
  font-weight: 500;
  min-width: 140px;
}

.feature-support-matrix td:last-child,
.feature-support-matrix th:last-child {
  color: var(--text-muted);
}

/* ===== Feature Details Section ===== */
.feature-details {
  margin-top: 1rem;
}

.feature-details > h3 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

.db-detail-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.125rem;
  margin-bottom: 0.75rem;
  border-left-width: 3px;
  border-left-style: solid;
  border-left-color: var(--border);
  transition: box-shadow var(--transition);
}

.db-detail-card:hover {
  box-shadow: var(--shadow-sm);
}

.db-detail-card[data-status="full"] { border-left-color: var(--status-full); }
.db-detail-card[data-status="partial"] { border-left-color: var(--status-partial); }
.db-detail-card[data-status="none"] { border-left-color: var(--status-none); }
.db-detail-card[data-status="extension"] { border-left-color: var(--status-extension); }
.db-detail-card[data-status="workaround"] { border-left-color: var(--status-workaround); }

.db-detail-card-header {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.625rem;
}

.db-detail-card-name {
  font-weight: 700;
  font-size: 0.9375rem;
  flex: 1;
}

.db-detail-card pre {
  margin-top: 0.625rem;
}

.db-detail-notes {
  margin-top: 0.625rem;
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.db-detail-notes li {
  margin-left: 1.25rem;
  margin-bottom: 0.25rem;
}

.db-detail-docs {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== Compare Section Header ===== */
.compare-section h3 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 700;
}

/* ===== Reserved Words Page ===== */
.page-reserved-words .controls {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
}

.page-reserved-words .search-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.875rem;
}

.page-reserved-words #search {
  flex: 1;
  max-width: 400px;
  padding: 0.5rem 0.875rem;
  font-size: 0.9375rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.page-reserved-words #search:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.page-reserved-words .stats {
  font-size: 0.8125rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.page-reserved-words .filter-row {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.page-reserved-words .filter-row:last-child {
  margin-bottom: 0;
}

.page-reserved-words .filter-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted);
  padding-top: 0.15rem;
  white-space: nowrap;
}

.page-reserved-words .db-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.5rem;
}

.page-reserved-words .db-filters label {
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.page-reserved-words .show-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 1rem;
}

.page-reserved-words .show-option {
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* Reserved Words Table */
.page-reserved-words .table-container {
  overflow-x: auto;
  max-height: calc(100vh - 400px);
  overflow-y: auto;
}

.page-reserved-words table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.page-reserved-words thead {
  position: sticky;
  top: 0;
  z-index: 20;
}

.page-reserved-words thead th {
  background: var(--bg-header);
  color: var(--text-header);
  padding: 0.5rem 0.4rem;
  font-weight: 600;
  font-size: 0.7rem;
  border-bottom: 2px solid var(--border);
  white-space: nowrap;
  text-align: center;
  vertical-align: bottom;
}

.page-reserved-words thead th.col-keyword {
  text-align: left;
  padding-left: 1rem;
  position: sticky;
  left: 0;
  z-index: 30;
  min-width: 160px;
}

.page-reserved-words thead th.col-db {
  min-width: 50px;
  padding: 0.5rem 0.25rem;
}

.page-reserved-words thead th.col-db .db-name {
  writing-mode: vertical-lr;
  transform: rotate(180deg);
  display: inline-block;
  white-space: nowrap;
  font-size: 0.7rem;
  letter-spacing: 0.02em;
}

.page-reserved-words thead th.col-db a {
  color: var(--text-header);
  text-decoration: none;
}

.page-reserved-words thead th.col-db a:hover {
  text-decoration: underline;
}

.page-reserved-words tbody tr {
  border-bottom: 1px solid var(--border);
}

.page-reserved-words tbody tr:nth-child(even) {
  background: var(--bg-alt);
}

.page-reserved-words tbody tr:hover {
  background: var(--highlight);
}

.page-reserved-words tbody td {
  padding: 0.3rem 0.4rem;
  text-align: center;
  vertical-align: middle;
}

.page-reserved-words tbody td.col-keyword {
  text-align: left;
  padding-left: 1rem;
  font-family: "JetBrains Mono", "Fira Code", "Cascadia Code", "Consolas", monospace;
  font-size: 0.82rem;
  font-weight: 600;
  position: sticky;
  left: 0;
  z-index: 10;
  background: var(--sticky-bg);
}

.page-reserved-words tbody tr:nth-child(even) td.col-keyword {
  background: var(--sticky-bg-alt);
}

.page-reserved-words tbody tr:hover td.col-keyword {
  background: var(--highlight);
}

.page-reserved-words .col-hidden {
  display: none;
}

/* Loading state */
.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
  font-size: 1rem;
}

/* ===== Search Page ===== */
.search-page-controls {
  margin-bottom: 1.75rem;
}

.search-form {
  max-width: 560px;
}

#search-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--bg);
  color: var(--text);
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition), box-shadow var(--transition);
}

#search-input:focus {
  border-color: var(--link);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 1rem 1.75rem;
    margin-bottom: 1.25rem;
  }

  .hero-title {
    font-size: 1.625rem;
  }

  .hero-subtitle {
    font-size: 0.9375rem;
    margin-bottom: 1.5rem;
  }

  .category-grid {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .page-reserved-words .search-row {
    flex-direction: column;
    align-items: stretch;
  }

  .page-reserved-words #search {
    max-width: none;
  }

  .page-reserved-words .filter-row {
    flex-direction: column;
    gap: 0.25rem;
  }

  .page-reserved-words .table-container {
    max-height: calc(100vh - 480px);
  }

  .category-search-row {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  #category-search {
    max-width: none;
  }

  .feature-support-matrix {
    margin-left: -1rem;
    margin-right: -1rem;
    border-radius: 0;
  }

  .feature-details > h3 {
    font-size: 0.75rem;
  }

  .compare-section h3 {
    font-size: 0.75rem;
  }
}