/* ========================================
   CSS Variables - Nord Theme Palette
   https://www.nordtheme.com/
   ======================================== */

/* Nord color definitions */
:root {
  /* Polar Night - dark backgrounds */
  --nord0: #2e3440;
  --nord1: #3b4252;
  --nord2: #434c5e;
  --nord3: #4c566a;
  /* Snow Storm - light backgrounds / dark mode text */
  --nord4: #d8dee9;
  --nord5: #e5e9f0;
  --nord6: #eceff4;
  /* Frost - accent colors */
  --nord7: #8fbcbb;
  --nord8: #88c0d0;
  --nord9: #81a1c1;
  --nord10: #5e81ac;
  /* Aurora - semantic colors */
  --nord11: #bf616a;
  --nord12: #d08770;
  --nord13: #ebcb8b;
  --nord14: #a3be8c;
  --nord15: #b48ead;
}

/* Dark theme (default) */
:root,
[data-theme="dark"] {
  --bg-primary: var(--nord0);
  --bg-secondary: var(--nord1);
  --bg-tertiary: var(--nord2);
  --bg-overlay: rgba(46, 52, 64, 0.95);
  --text-primary: var(--nord6);
  --text-secondary: var(--nord4);
  --accent: var(--nord8);
  --accent-hover: var(--nord7);
  --accent-dim: rgba(136, 192, 208, 0.2);
  --border: var(--nord3);
  --border-strong: var(--nord4);
  --success: var(--nord14);
  --warning: var(--nord13);
  --danger: var(--nord11);
  --info: var(--nord9);
  --purple: var(--nord15);
  --orange: var(--nord12);
}

/* Light theme */
[data-theme="light"] {
  --bg-primary: var(--nord6);
  --bg-secondary: var(--nord5);
  --bg-tertiary: var(--nord4);
  --bg-overlay: rgba(236, 239, 244, 0.95);
  --text-primary: var(--nord0);
  --text-secondary: var(--nord3);
  --accent: var(--nord10);
  --accent-hover: var(--nord9);
  --accent-dim: rgba(94, 129, 172, 0.2);
  --border: var(--nord4);
  --border-strong: var(--nord3);
  --success: var(--nord14);
  --warning: var(--nord12);
  --danger: var(--nord11);
  --info: var(--nord9);
  --purple: var(--nord15);
  --orange: var(--nord12);
}

/* ========================================
   Base Styles
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'JetBrains Mono', monospace;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.6;
}

/* ========================================
   Header
   ======================================== */
header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.logo-link:hover {
  opacity: 0.8;
}

.logo-img {
  height: 48px;
  width: auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

header h1 {
  font-size: 0.9rem;
  font-weight: 400;
  color: var(--text-secondary);
}

/* Global action buttons */
.btn-load-query,
.btn-share {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border: 1px solid var(--border);
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-load-query:hover,
.btn-share:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.btn-share {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.btn-share:hover {
  opacity: 0.9;
}

/* Theme Toggle Button */
.btn-theme-toggle {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
}

.btn-theme-toggle:hover {
  background: var(--accent);
  border-color: var(--accent);
}

/* Show sun icon in dark mode, moon icon in light mode */
.theme-icon-light {
  display: none;
}

[data-theme="light"] .theme-icon-dark {
  display: none;
}

[data-theme="light"] .theme-icon-light {
  display: inline;
}

/* ========================================
   Main Container
   ======================================== */
main {
  max-width: 1800px;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 1;  /* Below sticky header (100) and tabs (99) */
}

/* ========================================
   Drop Zone - Where users drag JSON files
   ======================================== */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 3rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  background: var(--bg-secondary);
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.drop-zone-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.drop-zone h2 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.drop-zone p {
  color: var(--text-secondary);
  font-size: 0.85rem;
}

.drop-zone input[type="file"] {
  display: none;
}

/* ========================================
   Dashboard Container (hidden until file loads)
   ======================================== */
.dashboard {
  display: none;
}

.dashboard.visible {
  display: block;
}

/* ========================================
   Query Info Section
   ======================================== */
.query-info {
  background: var(--bg-secondary);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border: 1px solid var(--border);
}

.query-info h2 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.query-info-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.query-info-header h2 {
  margin-bottom: 0;
}

.query-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
}

.meta-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.meta-item label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.meta-item span {
  font-size: 0.9rem;
  color: var(--text-primary);
}

/* ========================================
   Summary Cards - Organized in Sections
   ======================================== */
.cards-container {
  display: grid;
  grid-template-columns: 1fr 2fr;
  grid-template-rows: auto auto;
  gap: 1rem;
  margin-bottom: 2rem;
}

.cards-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem 1.5rem;
  position: relative;
  overflow: hidden;
}

/* Memory section spans left column, both rows */
.cards-section#memoryCards {
  grid-column: 1;
  grid-row: 1 / 3;
  border-left: 3px solid var(--warning);
}

/* Time section - top right */
.cards-section#timeCards {
  grid-column: 2;
  grid-row: 1;
  border-left: 3px solid var(--success);
}

/* Scan section - bottom right */
.cards-section#scanCards {
  grid-column: 2;
  grid-row: 2;
  border-left: 3px solid var(--accent);
}

.section-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.section-title::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

#memoryCards .section-title { color: var(--warning); }
#timeCards .section-title { color: var(--success); }
#scanCards .section-title { color: var(--accent); }

/* Join Summary card sections - matching Scan Summary colors */
.cards-section#joinMemoryCards {
  grid-column: 1;
  grid-row: 1;
  border-left: 3px solid var(--warning);
}

.cards-section#joinTimeCards {
  grid-column: 2;
  grid-row: 1;
  border-left: 3px solid var(--success);
}

#joinMemoryCards .section-title { color: var(--warning); }
#joinTimeCards .section-title { color: var(--success); }

.summary-cards {
  display: grid;
  gap: 0.75rem;
}

#memoryCards .summary-cards {
  grid-template-columns: 1fr;
}

#timeCards .summary-cards,
#scanCards .summary-cards {
  grid-template-columns: repeat(4, 1fr);
}

#joinMemoryCards .summary-cards {
  grid-template-columns: repeat(3, 1fr);
}

#joinTimeCards .summary-cards {
  grid-template-columns: repeat(4, 1fr);
}

.card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  transition: all 0.2s ease;
  opacity: 0.8;
}

.card:hover {
  opacity: 1;
  transform: translateY(-1px);
}

.card-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.card-value {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
  line-height: 1.2;
}

.card-value.bytes {
  color: var(--warning);
}

.card-value.time {
  color: var(--success);
}

.card-value.rows {
  color: var(--info);
}

.card-pct {
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-top: 0.35rem;
  font-weight: 400;
}

/* Responsive: stack on smaller screens */
@media (max-width: 1200px) {
  .cards-container {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  
  .cards-section#memoryCards,
  .cards-section#timeCards,
  .cards-section#scanCards {
    grid-column: 1;
    grid-row: auto;
  }
  
  #memoryCards .summary-cards {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* ========================================
   Data Table Section
   ======================================== */
.table-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.table-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.table-header h2 {
  font-size: 1rem;
  font-weight: 600;
}

.table-container {
  overflow-x: auto;
  outline: none;
}

.table-container:focus {
  box-shadow: inset 0 0 0 2px var(--accent);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.05em;
  position: sticky;
  top: 0;
  cursor: pointer;
  user-select: none;
}

th:hover {
  color: var(--accent);
}

/* Column headers with tooltips */
th.has-tooltip {
  cursor: pointer;
}

/* Global tooltip element (positioned via JS) */
.global-tooltip {
  position: fixed;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 400;
  font-family: 'JetBrains Mono', monospace;
  white-space: normal;
  max-width: 320px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
}

.global-tooltip.visible {
  opacity: 1;
}

th.sorted-asc::after {
  content: ' ▲';
  color: var(--accent);
}

th.sorted-desc::after {
  content: ' ▼';
  color: var(--accent);
}

/* Group Header Row - the top row with category names */
tr.group-header-row th {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.7rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  cursor: default;
  padding: 0.4rem 1rem;
  letter-spacing: 0.05em;
}

tr.group-header-row th:hover {
  color: var(--text-secondary); /* Don't change on hover */
}

tr.group-header-row th.group-spacer {
  background: var(--bg-tertiary);
  border-bottom: 1px solid var(--border);
}

/* Probe Side header - frost accent */
tr.group-header-row th.probe-header {
  background: var(--accent-dim);
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

/* Build Side header - orange accent */
tr.group-header-row th.build-header {
  background: rgba(208, 135, 112, 0.15);
  color: var(--orange);
  border-bottom: 2px solid var(--orange);
}

/* ========================================
   Scan Table Group Headers (color-coded)
   ======================================== */

/* Output - cyan/accent */
tr.group-header-row th.output-header {
  background: var(--accent-dim);
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
}

/* Operator Time - green/success */
tr.group-header-row th.operator-time-header {
  background: rgba(163, 190, 140, 0.15);
  color: var(--success);
  border-bottom: 2px solid var(--success);
}

/* Scan Time - green/success (same as Operator Time) */
tr.group-header-row th.scan-time-header {
  background: rgba(163, 190, 140, 0.15);
  color: var(--success);
  border-bottom: 2px solid var(--success);
}

/* Index Filters - orange/warning */
tr.group-header-row th.index-filters-header {
  background: rgba(235, 203, 139, 0.15);
  color: var(--warning);
  border-bottom: 2px solid var(--warning);
}

/* Predicate Filters - orange/warning (same family as Index) */
tr.group-header-row th.pred-filters-header {
  background: rgba(208, 135, 112, 0.15);
  color: var(--orange);
  border-bottom: 2px solid var(--orange);
}

/* Runtime Filters - blue/info */
tr.group-header-row th.runtime-filters-header {
  background: rgba(129, 161, 193, 0.15);
  color: var(--info);
  border-bottom: 2px solid var(--info);
}

/* Storage - purple */
tr.group-header-row th.storage-header {
  background: rgba(180, 142, 173, 0.15);
  color: var(--purple);
  border-bottom: 2px solid var(--purple);
}

/* Add subtle left border to first column of each group */
th.group-start,
td.group-start {
  border-left: 1px solid var(--text-secondary);
}

tr:hover {
  background: var(--bg-tertiary);
}

td {
  color: var(--text-primary);
}

/* Sticky first column for horizontal scrolling */
th.sticky-col,
td.sticky-col {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
}

th.sticky-col {
  z-index: 3;
  background: var(--bg-tertiary);
}

tr.group-header-row th.sticky-col {
  background: var(--bg-secondary);
}

tr.group-header-row th.group-spacer.sticky-col {
  background: var(--bg-tertiary);
}

tr:hover td.sticky-col {
  background: var(--bg-tertiary);
}

/* Special styling for certain columns */
td.table-name {
  color: var(--accent);
  font-weight: 500;
}

td.predicate {
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-secondary);
}

td.number {
  font-variant-numeric: tabular-nums;
  text-align: right;
}

td.bytes {
  color: var(--warning);
}

td.time {
  color: var(--success);
}

td.rows {
  color: var(--info);
}

/* Time with percentage display */
.time-pct {
  color: var(--text-secondary);
  font-size: 0.85em;
  margin-left: 0.25rem;
}

/* Skew indicator styling */
td.skew {
  font-weight: 600;
}

td.skew-ok {
  color: var(--success);
}

td.skew-warning {
  color: var(--warning);
}

td.skew-danger {
  color: var(--danger);
}

/* ========================================
   Utility Classes
   ======================================== */
.hidden {
  display: none !important;
}

.text-muted {
  color: var(--text-secondary);
}

/* ========================================
   Tab Navigation
   ======================================== */
.tab-nav {
  display: flex;
  gap: 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  position: sticky;
  top: 81px; /* Height of header (padding + logo + border) */
  z-index: 99;
}

.tab-btn {
  padding: 1rem 1.5rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.03);
}

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Separator before Query Comparison tab (last tab uses different workflow) */
.tab-btn:last-child {
  margin-left: 1rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

/* ========================================
   Comparison View
   ======================================== */
.compare-dropzones {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.compare-drop {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  background: var(--bg-secondary);
  position: relative;
}

.compare-drop:hover,
.compare-drop.drag-over {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.compare-drop.loaded {
  border-color: var(--success);
  border-style: solid;
}

.compare-drop h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.compare-drop.baseline h3 { color: var(--warning); }
.compare-drop.optimized h3 { color: var(--success); }

.compare-drop p {
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.compare-drop .loaded-info {
  color: var(--text-primary);
  font-size: 0.85rem;
}

.compare-drop input[type="file"] {
  display: none;
}

.compare-drop .load-url-link {
  color: var(--accent);
  cursor: pointer;
  font-size: 0.75rem;
  margin-top: 0.5rem;
}

.compare-drop .load-url-link:hover {
  text-decoration: underline;
}

.url-input-inline {
  width: 100%;
}

.url-input-inline input {
  width: 100%;
  padding: 0.6rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
}

.url-input-inline input:focus {
  outline: none;
  border-color: var(--accent);
}

.url-input-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
}

.btn-cancel-url,
.btn-load-url {
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-load-url {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--bg-primary);
}

.btn-load-url:hover {
  opacity: 0.9;
}

.btn-cancel-url {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

.btn-cancel-url:hover {
  border-color: var(--text-secondary);
}

/* Comparison Results */
.compare-results {
  display: none;
}

.compare-results.visible {
  display: block;
}

.compare-header {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.compare-query-info {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.5rem;
}

.compare-query-info.baseline {
  border-left: 3px solid var(--warning);
}

.compare-query-info.optimized {
  border-left: 3px solid var(--success);
}

.compare-query-info h4 {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.compare-query-info.baseline h4 { color: var(--warning); }
.compare-query-info.optimized h4 { color: var(--success); }

.compare-query-info .meta-row {
  display: flex;
  gap: 2rem;
  font-size: 0.8rem;
}

.compare-query-info .meta-row span {
  color: var(--text-secondary);
}

.compare-query-info .meta-row strong {
  color: var(--text-primary);
  margin-left: 0.5rem;
}

/* Comparison Cards */
.compare-cards-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem 1.5rem;
  margin-bottom: 1.5rem;
}

.compare-cards-section h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.compare-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}

/* Time and Join comparison: 3 cards per row for better readability */
#compareTimeCards,
#compareJoinCards {
  grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 900px) {
  #compareTimeCards,
  #compareJoinCards {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .compare-cards-grid,
  #compareTimeCards,
  #compareJoinCards {
    grid-template-columns: 1fr;
  }
}

/* Card Container with state-based left border */
.compare-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  transition: border-color 0.2s ease;
}

.compare-card.improved {
  border-left: 3px solid var(--success);
}

.compare-card.regressed {
  border-left: 3px solid var(--danger);
}

.compare-card.neutral {
  border-left: 3px solid var(--text-secondary);
}

/* Card Header - Label + Badge */
.compare-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.compare-card-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Prominent Change Badge */
.compare-change-badge {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

.compare-change-badge.improved {
  background: rgba(163, 190, 140, 0.2);
  color: var(--success);
}

.compare-change-badge.regressed {
  background: rgba(191, 97, 106, 0.2);
  color: var(--danger);
}

.compare-change-badge.neutral {
  background: rgba(76, 86, 106, 0.3);
  color: var(--text-secondary);
}

.change-arrow {
  font-size: 0.85rem;
}

/* Bullet Chart Bar */
.compare-bullet-bar {
  margin-bottom: 0.75rem;
  position: relative;
  height: 12px;
}

.bullet-bar-baseline {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--warning);
  opacity: 0.3;
  border-radius: 3px;
}

.bullet-bar-optimized {
  position: absolute;
  top: 2px;
  left: 0;
  height: 8px;
  border-radius: 2px;
  transition: width 0.4s ease-out;
}

.compare-card.improved .bullet-bar-optimized {
  background: var(--success);
}

.compare-card.regressed .bullet-bar-optimized {
  background: var(--danger);
}

.compare-card.neutral .bullet-bar-optimized {
  background: var(--text-secondary);
}

/* Values Row */
.compare-values {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.compare-arrow {
  color: var(--text-secondary);
  font-size: 1rem;
  opacity: 0.6;
}

.compare-value {
  display: flex;
  flex-direction: column;
}

.compare-value .value-num {
  font-size: 0.85rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.compare-value.baseline .value-num {
  color: var(--warning);
}

.compare-value.optimized .value-num {
  color: var(--success);
}

.compare-card.regressed .compare-value.optimized .value-num {
  color: var(--danger);
}

/* ========================================
   Query Plan Visualization Styles
   ======================================== */
.plan-container {
  padding: 1rem;
  position: relative;
  overflow: visible;
}

.plan-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.plan-header h3 {
  color: var(--accent);
  font-size: 1.2rem;
}

.btn-reset {
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  border-radius: 6px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  transition: all 0.2s ease;
}

.btn-reset:hover {
  background: var(--border);
  color: var(--text-primary);
}

.plan-canvas {
  overflow: hidden;
  padding: 0;
  /* Use viewport height minus header (~56px), nav (~50px), main padding (32px), plan-header (~70px), and some bottom margin */
  height: calc(100vh - 220px);
  min-height: 400px;
  position: relative;
  cursor: grab;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.plan-canvas.panning { cursor: grabbing; }

/* Zoom Container - receives CSS transform for pan/zoom */
.zoom-container {
  position: relative;
  transform-origin: 0 0;
}

.zoom-container.smooth-transform {
  transition: transform 300ms ease-out;
}

/* Floating Toolbar - positioned inside canvas area */
.canvas-toolbar {
  position: absolute;
  top: 80px;  /* Inside plan canvas area */
  right: 24px;
  display: none;
  gap: 4px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 300;
}

.canvas-toolbar.visible { display: flex; }

.canvas-toolbar button {
  width: 32px;
  height: 32px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.canvas-toolbar button:hover {
  background: var(--bg-tertiary);
  color: var(--accent);
}

/* Zoom Indicator */
.zoom-indicator {
  position: absolute;
  top: 134px;  /* Below toolbar */
  right: 24px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 11px;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 300;
  pointer-events: none;
}

.zoom-indicator.visible { opacity: 1; }
.zoom-indicator.at-100 { color: var(--accent); border-color: var(--accent); }
.zoom-indicator.at-limit { color: var(--warning); border-color: var(--warning); }

/* Minimap - positioned inside canvas area */
.viewport-minimap {
  position: absolute;
  top: 80px;  /* Inside plan canvas area */
  left: 24px;
  width: 180px;
  height: 120px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  z-index: 300;
  cursor: pointer;
  display: none;
  backdrop-filter: blur(8px);
}

.viewport-minimap.visible { display: block; }

.minimap-content {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 8px;
}

.minimap-nodes {
  position: relative;
  width: 100%;
  height: 100%;
}

.minimap-viewport {
  position: absolute;
  border: 2px solid var(--accent);
  background: rgba(0, 212, 170, 0.1);
  border-radius: 2px;
  pointer-events: none;
}

.minimap-node {
  position: absolute;
  border-radius: 2px;
  width: 6px;
  height: 4px;
}

.minimap-node.scan { background: var(--warning); }
.minimap-node.join { background: var(--danger); }
.minimap-node.exchange { background: var(--info); }
.minimap-node.other { background: var(--text-secondary); }

/* Plan Search Bar */
.plan-search-bar {
  position: absolute;
  top: 80px;
  left: 220px;  /* Right of minimap (180px + 24px + gap) */
  display: none;
  align-items: center;
  gap: 6px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 300;
}

.plan-search-bar.visible { display: flex; }

.plan-search-bar input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  width: 220px;
  outline: none;
}

.plan-search-bar input::placeholder {
  color: var(--text-secondary);
  font-size: 0.75rem;
}

/* Filter area - contains pills and input */
.search-filter-area {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  min-width: 0;
  cursor: text;
}

/* Pills container - view mode */
.filter-pills {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.filter-pills:empty {
  display: none;
}

/* Individual pill */
.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
}

.filter-pill .pill-remove {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  border: none;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  border-radius: 50%;
  font-size: 0.7rem;
  line-height: 1;
  padding: 0;
  opacity: 0.7;
  transition: all 0.15s;
}

.filter-pill .pill-remove:hover {
  opacity: 1;
  background: var(--accent);
  color: var(--bg-primary);
}

/* Operator between pills */
.filter-operator {
  color: var(--text-secondary);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 0 2px;
}

.plan-search-bar .search-help {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border-radius: 50%;
  cursor: help;
  flex-shrink: 0;
}

.plan-search-bar .search-help:hover {
  color: var(--accent);
  background: var(--accent-dim);
}

/* Search help tooltip */
.search-help-tooltip {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.75rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  z-index: 400;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s, visibility 0.15s;
  white-space: nowrap;
}

.plan-search-bar:has(.search-help:hover) .search-help-tooltip,
.search-help-tooltip:hover {
  opacity: 1;
  visibility: visible;
}

.search-help-tooltip .help-section {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 8px;
  margin-bottom: 4px;
  padding-top: 6px;
  border-top: 1px solid var(--border);
}

.search-help-tooltip .help-section:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.search-help-tooltip .help-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 3px 0;
}

.search-help-tooltip code {
  background: var(--accent-dim);
  color: var(--accent);
  padding: 2px 6px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
}

.search-help-tooltip span {
  color: var(--text-secondary);
}

.search-help-tooltip kbd {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  padding: 2px 5px;
  border-radius: 3px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  border: 1px solid var(--border);
}

.search-help-tooltip .help-keys {
  margin-top: 4px;
  padding-top: 8px;
}

.plan-search-bar .search-clear {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 2px 6px;
  font-size: 1rem;
  line-height: 1;
  border-radius: 4px;
  transition: all 0.15s;
}

.plan-search-bar .search-clear:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.plan-search-bar .search-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px 8px;
  font-size: 0.75rem;
  border-radius: 4px;
  transition: all 0.15s;
}

.plan-search-bar .search-toggle:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent);
}

.plan-search-bar .search-toggle.hide-mode {
  border-color: var(--warning);
  color: var(--warning);
  background: rgba(208, 135, 112, 0.1);
}

/* Filter summary box - shows count and total time for filtered nodes */
.filter-summary {
  position: absolute;
  top: 208px;  /* Below minimap (80px + 120px + 8px gap) */
  left: 24px;
  width: 180px;  /* Match minimap width */
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--bg-overlay);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  z-index: 300;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
}

.filter-summary-count {
  color: var(--accent);
  font-weight: 600;
}

.filter-summary-divider {
  color: var(--text-secondary);
  font-size: 0.6rem;
}

.filter-summary-time {
  color: var(--success);
  font-weight: 600;
}

/* Filter state classes for plan nodes */
.plan-node.filter-dimmed {
  opacity: 0.15 !important;
  pointer-events: none !important;
}

.plan-node.filter-dimmed:hover {
  border-color: var(--border) !important;
  box-shadow: none !important;
}

.plan-node.filter-hidden {
  display: none !important;
}

.plan-node.filter-match {
  box-shadow: 0 0 0 2px var(--accent), 0 0 12px var(--accent-dim) !important;
}

/* Filter state classes for SVG edges */
.plan-svg path.filter-dimmed,
.plan-svg rect.filter-dimmed,
.plan-svg text.filter-dimmed {
  opacity: 0.1;
}

.plan-svg path.filter-hidden,
.plan-svg rect.filter-hidden,
.plan-svg text.filter-hidden {
  display: none;
}

.plan-svg-container {
  position: relative;
  margin: 0 auto;
}

.plan-svg {
  position: absolute;
  top: 0;
  left: 0;
  pointer-events: none;
}

.plan-svg line {
  stroke: var(--border);
  stroke-width: 1.5;
}

.plan-nodes-container {
  position: relative;
}

/* Plan SVG edges */
.plan-svg path {
  stroke: var(--text-secondary);
}

/* Edge row count labels */
.edge-label-bg {
  fill: var(--bg-secondary);
  stroke: var(--border);
}

.edge-label-text {
  fill: var(--info);
}

/* Plan node base styling */
.plan-node {
  background: var(--bg-secondary) !important;
  border: 1px solid var(--border) !important;
  transition: width 0.15s ease-out, box-shadow 0.2s ease-out, transform 0.15s ease-out;
}

/* Node type border colors */
.plan-node.scan { border-left: 3px solid var(--warning) !important; }
.plan-node.join { border-left: 3px solid var(--danger) !important; }
.plan-node.exchange { border-left: 3px solid var(--info) !important; }
.plan-node.aggregate { border-left: 3px solid var(--purple) !important; }
.plan-node.union { border-left: 3px solid var(--success) !important; }
.plan-node.other { border-left: 3px solid var(--text-secondary) !important; }

/* Node content colors */
.plan-node .node-name { color: var(--text-primary); }
.plan-node .node-id { color: var(--text-secondary); }
.plan-node .node-time { color: var(--success); }
.plan-node .node-table { color: var(--warning); }
.plan-node .expand-icon { color: var(--accent); }

/* Metrics dropdown */
.node-metrics-dropdown {
  border-top: 1px solid var(--border);
}

.metric-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.metric-label { color: var(--text-secondary); font-size: 11px; }
.metric-value { color: var(--text-primary); font-size: 11px; font-weight: 500; }
.metric-value.time { color: var(--success); }
.metric-value.bytes { color: var(--warning); }
.metric-value.rows { color: var(--info); }
.metric-value.memory { color: var(--warning); }
.metric-value.network { color: var(--info); }
.metric-value.type { color: var(--danger); }
.metric-percent { color: var(--text-secondary); }

.plan-node:hover {
  border-color: var(--accent) !important;
  box-shadow: 0 0 15px var(--accent-dim);
}

/* Clickable nodes have visual affordance */
.plan-node.has-metrics {
  cursor: pointer;
}

/* Subtle expandable indicator - small dot at bottom */
.plan-node.has-metrics::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 2px;
  background: var(--accent);
  opacity: 0.4;
  border-radius: 1px;
  transition: opacity 0.15s, width 0.15s;
}

.plan-node.has-metrics:hover {
  border-color: var(--accent) !important;
}

.plan-node.has-metrics:hover::after {
  opacity: 0.8;
  width: 24px;
}

.plan-node.has-metrics:hover .expand-icon {
  transform: scale(1.3);
  color: var(--accent);
}

/* Expanded node styling - elevated overlay appearance */
.plan-node.expanded {
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5),
              0 0 0 1px var(--accent);
  transform: translateY(-2px);
}

/* Smooth dropdown animation */
.node-metrics-dropdown {
  transition: opacity 0.15s ease-out;
}

.node-metrics-dropdown[style*="display: none"] {
  opacity: 0;
}

.node-metrics-dropdown[style*="display: block"] {
  opacity: 1;
}

/* Highlighted node (when navigated to via popup) */
.plan-node.highlighted {
  animation: node-highlight 2s ease-out;
  box-shadow: 0 0 0 3px var(--accent), 0 8px 32px rgba(0, 0, 0, 0.5);
}

@keyframes node-highlight {
  0% {
    box-shadow: 0 0 0 6px var(--accent), 0 0 30px var(--accent);
    transform: scale(1.05);
  }
  100% {
    box-shadow: 0 0 0 3px var(--accent), 0 8px 32px rgba(0, 0, 0, 0.5);
    transform: scale(1);
  }
}

/* ========================================
   Node ID Link & Popup Styles
   ======================================== */

/* Clickable node ID in scan table */
.node-link {
  color: var(--accent);
  cursor: pointer;
  background: var(--accent-dim);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-weight: 500;
  transition: all 0.15s ease;
}

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

.clickable-cell {
  cursor: pointer;
}

/* Node popup menu */
.node-popup {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  min-width: 180px;
  overflow: hidden;
  animation: popup-appear 0.15s ease-out;
}

@keyframes popup-appear {
  from {
    opacity: 0;
    transform: translateY(-4px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.node-popup-header {
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  background: var(--bg-tertiary);
}

.node-popup-btn {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  cursor: pointer;
  text-align: left;
  transition: background 0.15s ease;
}

.node-popup-btn:hover {
  background: var(--accent-dim);
}

.node-popup-btn:not(:last-child) {
  border-bottom: 1px solid var(--border);
}

.popup-icon {
  font-size: 1rem;
}

/* ========================================
   Footer
   ======================================== */
.site-footer {
  padding: 2rem;
  text-align: center;
}

.footer-text {
  font-size: 0.7rem;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
}

.footer-text a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.footer-text a:hover {
  opacity: 0.8;
}

/* ========================================
   Raw JSON Tab Styles
   ======================================== */
.raw-container {
  padding: 1rem;
}

.raw-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.raw-header-title {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.raw-header h2 {
  color: var(--accent);
  font-size: 1.2rem;
  margin: 0;
}

.raw-header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.raw-search {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.25rem 0.5rem;
}

.raw-search input {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  width: 150px;
  outline: none;
}

.raw-search input::placeholder {
  color: var(--text-secondary);
}

.search-count {
  font-size: 0.75rem;
  color: var(--text-secondary);
  min-width: 50px;
  text-align: center;
}

.btn-search-nav {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0.25rem;
  font-size: 0.7rem;
  line-height: 1;
}

.btn-search-nav:hover {
  color: var(--accent);
}

.btn-search-nav:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.raw-content .search-highlight {
  background: rgba(235, 203, 139, 0.3);
  border-radius: 2px;
}

.raw-content .search-highlight.current {
  background: var(--warning);
  color: var(--bg-primary);
}

.btn-copy-raw {
  padding: 0.5rem 1rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: 6px;
  cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  transition: all 0.2s ease;
}

.btn-copy-raw:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg-primary);
}

.raw-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  overflow: auto;
  max-height: calc(100vh - 380px);
}

.raw-content pre {
  margin: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  line-height: 1.5;
  color: var(--text-primary);
  white-space: pre-wrap;
  word-wrap: break-word;
}

.raw-content code {
  font-family: inherit;
  color: inherit;
}

/* JSON Tree View */
.json-tree {
  display: block;
}

.json-key {
  color: var(--info);
}

.json-string {
  color: var(--success);
}

.json-number {
  color: var(--warning);
}

.json-boolean {
  color: var(--accent);
}

.json-null {
  color: var(--text-secondary);
  font-style: italic;
}

.json-bracket {
  color: var(--text-secondary);
}

.json-toggle {
  cursor: pointer;
  user-select: none;
  color: var(--accent);
  font-size: 0.7em;
  display: inline-block;
  width: 1em;
  transition: transform 0.15s ease;
}

.json-toggle:hover {
  color: var(--info);
}

.json-toggle.collapsed {
  transform: rotate(0deg);
}

.json-preview {
  color: var(--text-secondary);
  font-style: italic;
  font-size: 0.85em;
  opacity: 0.7;
}

.json-collapsible {
  display: inline;
}

.json-collapsible.collapsed {
  display: none;
}

.json-collapsible.collapsed + .json-bracket {
  display: none;
}

/* ========================================
   Modal Styles
   ======================================== */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  z-index: 999;
}

/* Loading Overlay */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loading-content {
  text-align: center;
}

.loading-logo {
  width: 80px;
  height: 80px;
  animation: spin 2s linear infinite;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(0 0 8px rgba(136, 192, 208, 0.4));
}

/* Theme-aware loading logo */
.loading-logo-dark {
  display: block;
}

.loading-logo-light {
  display: none;
}

[data-theme="light"] .loading-logo-dark {
  display: none;
}

[data-theme="light"] .loading-logo-light {
  display: block;
}

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

.loading-content p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1000;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  min-width: 500px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.modal-content h2 {
  color: var(--accent);
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

.modal-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  transition: all 0.2s;
}

.modal-close:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.load-options {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.load-option-btn {
  background: var(--bg-tertiary);
  border: 2px solid var(--border);
  border-radius: 8px;
  padding: 1.5rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
}

.load-option-btn:hover {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.load-icon {
  font-size: 2rem;
}

.load-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.load-desc {
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.url-input-container {
  margin-top: 1rem;
}

.url-input-container input {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
}

.url-input-container input:focus {
  outline: none;
  border-color: var(--accent);
}

.json-input-container {
  margin-top: 1rem;
}

.json-input-container textarea {
  width: 100%;
  padding: 0.75rem;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-primary);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  margin-bottom: 0.75rem;
  resize: vertical;
  min-height: 150px;
}

.json-input-container textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.url-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.btn-load,
.btn-cancel {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-load {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--bg-primary);
}

.btn-load:hover {
  opacity: 0.9;
}

.btn-cancel {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  color: var(--text-primary);
}

.btn-cancel:hover {
  background: var(--border);
}

/* Share Modal Styles */
.share-warning {
  display: flex;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(255, 165, 0, 0.1);
  border: 1px solid rgba(255, 165, 0, 0.3);
  border-radius: 8px;
  margin-bottom: 1.5rem;
}

.warning-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.warning-text p {
  margin: 0 0 0.5rem 0;
  color: var(--text-primary);
  font-size: 0.85rem;
  line-height: 1.5;
}

.warning-text p:last-child {
  margin-bottom: 0;
}

.warning-text strong {
  color: var(--warning);
}

.share-actions {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

.btn-confirm {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  background: var(--warning);
  border: 1px solid var(--warning);
  color: var(--bg-primary);
  font-weight: 500;
}

.btn-confirm:hover {
  opacity: 0.9;
}

.btn-confirm:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* ========================================
   Overview Tab Styles
   ======================================== */

/* Section Headers */
.section-header {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-weight: 600;
}

.section-subtitle {
  font-weight: 400;
  text-transform: none;
  letter-spacing: normal;
  opacity: 0.7;
}

/* Bottleneck Alert */
.bottleneck-alert {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.bottleneck-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 0.9rem;
}

.bottleneck-header.critical {
  background: rgba(191, 97, 106, 0.15);
  border-bottom: 2px solid var(--danger);
  color: var(--danger);
}

.bottleneck-header.warning {
  background: rgba(235, 203, 139, 0.15);
  border-bottom: 2px solid var(--warning);
  color: var(--warning);
}

.bottleneck-icon {
  font-size: 1.1rem;
}

.bottleneck-body {
  padding: 1.5rem;
}

.bottleneck-message {
  font-size: 1rem;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.bottleneck-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 1rem;
  background: var(--bg-tertiary);
  border-radius: 8px;
}

.bottleneck-detail {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.detail-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.detail-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-primary);
}

.detail-value.time { color: var(--success); }
.detail-value.bytes { color: var(--warning); }
.detail-value.danger { color: var(--danger); }

.bottleneck-suggestion {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  background: var(--accent-dim);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.suggestion-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
}

.suggestion-text {
  font-size: 0.85rem;
  color: var(--text-primary);
  line-height: 1.5;
}

.bottleneck-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-view-plan {
  padding: 0.5rem 1rem;
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--bg-primary);
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-view-plan:hover {
  opacity: 0.9;
}

/* Fragment Breakdown */
.fragment-breakdown {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.fragment-bars {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.fragment-row {
  display: grid;
  grid-template-columns: 140px 1fr 100px;
  align-items: center;
  gap: 1rem;
}

.fragment-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.fragment-name {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
}

.fragment-badge {
  font-size: 0.7rem;
}

.fragment-bar-container {
  height: 24px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  overflow: hidden;
}

.fragment-bar {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.fragment-bar.ok {
  background: var(--accent);
}

.fragment-bar.warning {
  background: var(--warning);
}

.fragment-bar.critical {
  background: var(--danger);
}

.fragment-stats {
  display: flex;
  gap: 0.75rem;
  justify-content: flex-end;
  font-size: 0.8rem;
}

.fragment-pct {
  color: var(--text-secondary);
  min-width: 35px;
  text-align: right;
}

.fragment-time {
  color: var(--success);
  min-width: 55px;
  text-align: right;
}

/* Quick Stats */
.quick-stats {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.quick-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
}

.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.stat-value {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.stat-value.time { color: var(--success); }
.stat-value.bytes { color: var(--warning); }
.stat-value.danger { color: var(--danger); }

.no-data {
  color: var(--text-secondary);
  font-style: italic;
  text-align: center;
  padding: 2rem;
}

/* Planning vs Execution Bar */
.planning-bar-section {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.5rem;
  margin-bottom: 1.5rem;
}

.planning-bar-wrapper {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.planning-bar-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.planning-label {
  color: var(--info);
}

.planning-label.warning {
  color: var(--warning);
  font-weight: 600;
}

.execution-label {
  color: var(--success);
}

.planning-bar {
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--bg-tertiary);
}

.planning-segment {
  height: 100%;
  transition: width 0.3s ease;
}

.planning-segment.planning {
  background: var(--info);
}

.planning-segment.execution {
  background: var(--success);
}

/* Planner Breakdown */
.planner-breakdown-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.4rem 0 0;
  font-family: inherit;
  user-select: none;
}

.planner-breakdown-toggle:hover {
  color: var(--text-primary);
}

.planner-toggle-icon {
  display: inline-block;
  font-size: 0.6rem;
  transition: transform 0.2s;
  margin-right: 0.15rem;
}

.planner-breakdown-toggle.expanded .planner-toggle-icon {
  transform: rotate(90deg);
}

.planner-breakdown-wrapper {
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  padding-top: 0.5rem;
}

.planner-breakdown-wrapper.expanded {
  display: flex;
}

.planner-phase-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.7rem;
}

.planner-phase-row.total {
  margin-bottom: 0.25rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.planner-phase-row.total .planner-phase-label {
  font-weight: 600;
  color: var(--text-primary);
}

.planner-phase-row.total .planner-phase-bar {
  opacity: 0.9;
}

.planner-phase-row.indent {
  padding-left: 1.25rem;
}

.planner-phase-row.indent .planner-phase-label {
  color: var(--text-tertiary, var(--text-secondary));
  font-size: 0.65rem;
}

.planner-phase-row.indent .planner-phase-bar {
  opacity: 0.5;
}

.planner-phase-label {
  width: 90px;
  flex-shrink: 0;
  color: var(--text-secondary);
  text-align: left;
}

.planner-phase-bar-wrapper {
  flex: 1;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.planner-phase-bar {
  height: 100%;
  background: var(--info);
  border-radius: 3px;
  opacity: 0.7;
  transition: width 0.3s ease;
}

.planner-phase-time {
  width: 60px;
  flex-shrink: 0;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

/* Pipeline Timeline */
.pipeline-timeline {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.timeline-legend {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 1rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.legend-color {
  width: 12px;
  height: 12px;
  border-radius: 2px;
}

.legend-color.active {
  background: var(--success);
}

.legend-color.schedule {
  background: var(--accent);
}

.legend-color.waiting {
  background: var(--text-secondary);
  opacity: 0.3;
  border: 1px solid var(--border);
}

.timeline-container {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.timeline-fragment {
  margin-bottom: 0.5rem;
}

.timeline-fragment-header {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
  padding-left: 0.25rem;
}

.timeline-row {
  display: grid;
  grid-template-columns: 100px 1fr 150px;
  align-items: center;
  gap: 0.75rem;
  padding: 0.25rem 0;
}

.timeline-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: right;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.timeline-bar-wrapper {
  height: 18px;
  background: transparent;
  position: relative;
}

.timeline-bar {
  height: 100%;
  display: flex;
  border-radius: 3px;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--bg-tertiary);
  min-width: 4px;
}

.timeline-segment {
  height: 100%;
  min-width: 0;
  transition: opacity 0.15s;
}

.timeline-segment:hover {
  opacity: 0.8;
}

.timeline-segment.active {
  background: var(--success);
}

.timeline-segment.schedule {
  background: var(--accent);
}

.timeline-segment.waiting {
  background: var(--text-secondary);
  opacity: 0.2;
}

/* Light mode: make waiting segment more visible */
[data-theme="light"] .timeline-segment.waiting {
  background: var(--text-secondary);
  opacity: 0.3;
}

.timeline-time {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-align: right;
  white-space: nowrap;
}

/* Collapsed state for fragments with many pipelines */
.timeline-fragment.collapsed .timeline-pipelines {
  display: none;
}

.timeline-fragment-toggle {
  cursor: pointer;
  user-select: none;
}

.timeline-fragment-toggle:hover {
  color: var(--accent);
}

.toggle-icon {
  display: inline-block;
  transition: transform 0.2s;
  margin-right: 0.25rem;
}

.timeline-fragment.collapsed .toggle-icon {
  transform: rotate(-90deg);
}

/* Pipeline rank highlighting */
.rank-badge {
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  margin-left: 0.25rem;
}

.rank-top1 .rank-badge {
  background: var(--danger);
  color: var(--bg-primary);
}

.rank-top5 .rank-badge {
  background: var(--warning);
  color: var(--bg-primary);
}

/* Highlight active time text for top pipelines */
.rank-top1 .timeline-time {
  color: var(--danger);
  font-weight: 600;
}

.rank-top5 .timeline-time {
  color: var(--warning);
  font-weight: 600;
}

/* Expandable pipeline rows */
.timeline-row.expandable {
  cursor: pointer;
}

.timeline-row.expandable:hover {
  background: var(--bg-tertiary);
}

.pipeline-toggle-icon {
  display: inline-block;
  font-size: 0.6rem;
  margin-right: 0.35rem;
  transition: transform 0.15s;
}

.timeline-row-container:not(.collapsed) .pipeline-toggle-icon {
  transform: rotate(90deg);
}

/* Operator list inside pipeline */
.pipeline-operators {
  display: none;
  margin-left: 115px;
  padding: 0.25rem 0;
  margin-bottom: 0.25rem;
}

.timeline-row-container:not(.collapsed) .pipeline-operators {
  display: block;
}

.operator-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  padding: 0.3rem 0.75rem;
  font-size: 0.7rem;
  color: var(--text-secondary);
  gap: 0.75rem;
  cursor: pointer;
  border-radius: 4px;
  margin: 0.1rem 0;
}

.operator-row:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.operator-row.top-operator {
  color: var(--danger);
}

.operator-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.operator-time-bar {
  width: 60px;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.operator-time-bar-fill {
  height: 100%;
  background: var(--text-secondary);
  border-radius: 3px;
}

.operator-row.top-operator .operator-time-bar-fill {
  background: var(--danger);
}

.operator-time {
  white-space: nowrap;
  font-family: 'JetBrains Mono', monospace;
  min-width: 70px;
  text-align: right;
}

/* ========================================
   Slowest Operators Panel & Highlighting
   ======================================== */

/* Slowest node highlighting in Query Plan */
.plan-node.slowest-top1 {
  box-shadow: 0 0 0 3px var(--danger), 0 0 20px var(--danger) !important;
  z-index: 10;
}

.plan-node.slowest-top5 {
  box-shadow: 0 0 0 2px var(--warning), 0 0 12px rgba(235, 203, 139, 0.5) !important;
  z-index: 5;
}

/* Slowest Operators Panel */
.slowest-panel {
  position: absolute;
  top: 140px;
  right: 24px;
  width: 340px;
  max-height: calc(100% - 180px);
  background: var(--bg-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  border-radius: 8px;
  z-index: 100;
  transition: transform 0.2s ease-out, opacity 0.2s ease-out;
  overflow: hidden;
}

.slowest-panel.collapsed {
  transform: translateX(calc(100% + 24px));
  opacity: 0;
  pointer-events: none;
}

.slowest-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.slowest-panel-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  font-size: 0.9rem;
  padding: 2px 6px;
  border-radius: 4px;
  transition: background 0.15s, color 0.15s;
}

.slowest-panel-toggle:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.slowest-panel-content {
  overflow-y: auto;
  max-height: calc(100vh - 360px);
  padding: 4px 0;
}

/* Compact operator row style - matches Overview tab */
.slowest-row {
  display: grid;
  grid-template-columns: 28px 1fr 44px 60px 52px;
  align-items: center;
  padding: 6px 12px;
  cursor: pointer;
  font-size: 0.7rem;
  color: var(--text-secondary);
  gap: 8px;
  border-radius: 4px;
  margin: 1px 6px;
  transition: background 0.15s;
}

.slowest-row:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* Rank number - simple text */
.slowest-rank {
  font-weight: 600;
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
}

.slowest-rank.top1 {
  color: var(--danger);
}

.slowest-rank.top5 {
  color: var(--warning);
}

.slowest-rank.other {
  color: var(--text-secondary);
}

/* Operator name */
.slowest-name {
  font-size: 0.7rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.slowest-row.top1-row .slowest-name {
  color: var(--danger);
  font-weight: 500;
}

.slowest-row.top5-row .slowest-name {
  color: var(--warning);
  font-weight: 500;
}

/* Inline time bar - matches Overview operator rows */
.slowest-time-bar {
  width: 60px;
  height: 6px;
  background: var(--bg-tertiary);
  border-radius: 3px;
  overflow: hidden;
}

.slowest-time-bar-fill {
  height: 100%;
  background: var(--text-secondary);
  border-radius: 3px;
  transition: background 0.15s;
}

.slowest-row.top1-row .slowest-time-bar-fill {
  background: var(--danger);
}

.slowest-row.top5-row .slowest-time-bar-fill {
  background: var(--warning);
}

/* Node ID */
.slowest-node-id {
  font-size: 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  text-align: center;
}

/* Time value */
.slowest-time {
  font-size: 0.7rem;
  font-family: 'JetBrains Mono', monospace;
  text-align: right;
  white-space: nowrap;
}