/* Global Variables & Design Tokens */
:root {
  /* Dark Mode Default Tokens */
  --bg-primary: #070b19;
  --bg-secondary: #0f172a;
  --bg-sidebar: #090e1c;
  --bg-card: rgba(17, 25, 48, 0.55);
  --bg-card-hover: rgba(26, 38, 70, 0.7);
  --border-color: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.15);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --glow-color: rgba(59, 130, 246, 0.12);
  --shadow-color: rgba(0, 0, 0, 0.45);
  --input-bg: rgba(15, 23, 42, 0.6);
  --table-header-bg: rgba(15, 23, 42, 0.4);
  --table-stripe: rgba(255, 255, 255, 0.015);
  --table-hover: rgba(255, 255, 255, 0.03);
  
  /* Shared Accent Colors */
  --color-blue: #3b82f6;
  --color-blue-glow: rgba(59, 130, 246, 0.2);
  --color-red: #ef4444;
  --color-red-glow: rgba(239, 68, 68, 0.2);
  --color-green: #10b981;
  --color-green-glow: rgba(16, 185, 129, 0.2);
  --color-amber: #f59e0b;
  --color-amber-glow: rgba(245, 158, 11, 0.2);
  --color-purple: #8b5cf6;
  
  /* Font Family Stacks */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-display: 'Outfit', var(--font-sans);
  --font-mono: 'Fira Code', 'Courier New', Courier, monospace;

  /* Sizing / Borders */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Light Mode Override Tokens */
html[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --bg-sidebar: #f1f5f9;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-card-hover: rgba(248, 250, 252, 0.95);
  --border-color: rgba(15, 23, 42, 0.08);
  --border-hover: rgba(15, 23, 42, 0.16);
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --glow-color: rgba(59, 130, 246, 0.05);
  --shadow-color: rgba(15, 23, 42, 0.06);
  --input-bg: #ffffff;
  --table-header-bg: #f8fafc;
  --table-stripe: rgba(15, 23, 42, 0.01);
  --table-hover: rgba(15, 23, 42, 0.02);
  
  --color-blue-glow: rgba(59, 130, 246, 0.1);
  --color-red-glow: rgba(239, 68, 68, 0.1);
  --color-green-glow: rgba(16, 185, 129, 0.1);
  --color-amber-glow: rgba(245, 158, 11, 0.1);
}

/* Global Reset & Base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  height: 100vh;
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Scrollbar customizations */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

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

.text-right {
  text-align: right;
}

.font-mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.mt-4 {
  margin-top: 1.5rem;
}

.flex-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

/* ----------------------------------------------------
   1. UPLOADER LANDING SCREEN
---------------------------------------------------- */
.upload-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  position: relative;
  background-color: var(--bg-primary);
  overflow: hidden;
  padding: 2rem;
  z-index: 10;
}

.upload-glow-1, .upload-glow-2 {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: var(--radius-full);
  filter: blur(140px);
  opacity: 0.45;
  z-index: -1;
  pointer-events: none;
}

.upload-glow-1 {
  background: radial-gradient(circle, var(--color-blue) 0%, transparent 70%);
  top: -10%;
  left: 10%;
}

.upload-glow-2 {
  background: radial-gradient(circle, var(--color-purple) 0%, transparent 70%);
  bottom: -10%;
  right: 10%;
}

.upload-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  padding: 3rem;
  max-width: 620px;
  width: 100%;
  text-align: center;
  box-shadow: 0 25px 50px -12px var(--shadow-color);
  transform: translateY(0);
  transition: transform var(--transition-slow), border-color var(--transition-normal);
}

.upload-card:hover {
  border-color: rgba(59, 130, 246, 0.3);
}

.upload-icon-wrapper {
  background: var(--color-blue-glow);
  width: 80px;
  height: 80px;
  border-radius: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 2rem;
}

.upload-icon {
  width: 40px;
  height: 40px;
  color: var(--color-blue);
}

.upload-title {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--text-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.upload-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.6;
  margin-bottom: 2.5rem;
}

.drop-zone {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  padding: 3rem 2rem;
  background: rgba(15, 23, 42, 0.2);
  cursor: pointer;
  transition: border-color var(--transition-normal), background var(--transition-normal);
  position: relative;
}

.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--color-blue);
  background: rgba(59, 130, 246, 0.04);
}

.drop-icon {
  width: 48px;
  height: 48px;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  transition: color var(--transition-normal);
}

.drop-zone:hover .drop-icon {
  color: var(--color-blue);
}

.drop-text {
  color: var(--text-primary);
  font-size: 1.1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.browse-link {
  color: var(--color-blue);
  text-decoration: underline;
  cursor: pointer;
}

.drop-help {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.hidden-input {
  display: none;
}

.file-preview-card {
  margin-top: 1.5rem;
  background: rgba(15, 23, 42, 0.4);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
}

.file-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.file-text-icon {
  width: 32px;
  height: 32px;
  color: var(--color-blue);
}

.file-name-text {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  max-width: 250px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-size-text {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.15rem;
}

.analyze-btn {
  background: var(--color-blue);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.75rem 1.25rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: background var(--transition-fast), transform var(--transition-fast);
}

.analyze-btn:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

.btn-arrow {
  width: 16px;
  height: 16px;
}

.sample-info {
  margin-top: 2rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  line-height: 1.5;
}

.sample-info strong {
  color: var(--text-secondary);
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.animate-bounce {
  animation: bounce 2s infinite ease-in-out;
}

/* ----------------------------------------------------
   2. LOADING OVERLAY SCREEN
---------------------------------------------------- */
.loading-screen {
  position: fixed;
  inset: 0;
  background-color: var(--bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.spinner-container {
  text-align: center;
  max-width: 400px;
  width: 100%;
  padding: 2rem;
}

.loading-spinner {
  width: 56px;
  height: 56px;
  border: 4px solid var(--border-color);
  border-top-color: var(--color-blue);
  border-radius: var(--radius-full);
  margin: 0 auto 2rem;
  animation: spin 1s infinite linear;
}

.loading-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.loading-subtitle {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

.progress-bar-container {
  background: var(--border-color);
  height: 6px;
  border-radius: var(--radius-full);
  width: 100%;
  overflow: hidden;
}

.progress-bar-fill {
  background: var(--color-blue);
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 0.1s ease;
}

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

/* ----------------------------------------------------
   3. APP CONTAINER LAYOUT
---------------------------------------------------- */
.app-container {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
  overflow: hidden;
}

/* Sidebar Styling */
.sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 1.75rem 1.25rem;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.sidebar-header {
  margin-bottom: 2.5rem;
}

.logo-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 28px;
  height: 28px;
  color: var(--color-blue);
}

.logo-text {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-highlight {
  color: var(--color-blue);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex-grow: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
  position: relative;
}

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

html[data-theme="light"] .nav-item:hover {
  background: rgba(15, 23, 42, 0.04);
}

.nav-item.active {
  color: var(--color-blue);
  background: var(--glow-color);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 25%;
  height: 50%;
  width: 4px;
  background: var(--color-blue);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.badge {
  background: var(--color-red);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: var(--radius-full);
  margin-left: auto;
}

.sidebar-footer {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
}

.new-file-btn {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.7rem;
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.new-file-btn:hover {
  color: var(--text-primary);
  border-color: var(--text-muted);
  background: rgba(255, 255, 255, 0.02);
}

.new-file-btn i {
  width: 14px;
  height: 14px;
}

/* Theme Toggle Button */
.theme-switch-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.theme-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.theme-toggle-btn {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  width: 60px;
  height: 30px;
  border-radius: var(--radius-full);
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 6px;
  color: var(--text-muted);
}

.theme-toggle-slider {
  background: var(--color-blue);
  width: 22px;
  height: 22px;
  border-radius: var(--radius-full);
  position: absolute;
  left: 3px;
  top: 3px;
  transition: transform var(--transition-normal);
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

html[data-theme="light"] .theme-toggle-slider {
  transform: translateX(30px);
}

.sun-icon, .moon-icon {
  width: 14px;
  height: 14px;
  z-index: 2;
  pointer-events: none;
}

.sun-icon {
  color: #f59e0b;
}

.moon-icon {
  color: #94a3b8;
}

/* Main Content Workspace */
.main-content {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
}

.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 2.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}

.view-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.header-filename {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  display: inline-block;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-stat {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-top: 0.15rem;
}

.header-divider {
  height: 28px;
  width: 1px;
  background: var(--border-color);
}

.tab-pane {
  display: none;
  padding: 2.5rem;
  flex-grow: 1;
}

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

/* ----------------------------------------------------
   4. KPI SUMMARY CARDS
---------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  box-shadow: 0 4px 6px -1px var(--shadow-color);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.kpi-card:hover {
  border-color: var(--border-hover);
}

.kpi-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.kpi-icon-wrapper i {
  width: 22px;
  height: 22px;
}

.kpi-icon-wrapper.blue { background: var(--color-blue-glow); color: var(--color-blue); }
.kpi-icon-wrapper.red { background: var(--color-red-glow); color: var(--color-red); }
.kpi-icon-wrapper.green { background: var(--color-green-glow); color: var(--color-green); }
.kpi-icon-wrapper.amber { background: var(--color-amber-glow); color: var(--color-amber); }

.kpi-content {
  display: flex;
  flex-direction: column;
}

.kpi-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.kpi-value {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin: 0.2rem 0;
}

.kpi-subtext {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ----------------------------------------------------
   5. GRID CARDS & LAYOUT
---------------------------------------------------- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.grid-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 4px 6px -1px var(--shadow-color);
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition-normal);
}

.grid-card:hover {
  border-color: var(--border-hover);
}

.grid-card.span-2 {
  grid-column: span 2;
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
}

.card-subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.15rem;
}

.card-header-icon {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.card-body {
  padding: 1.5rem;
  flex-grow: 1;
}

/* Spec list items */
.spec-list {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.spec-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

html[data-theme="light"] .spec-item {
  border-bottom: 1px solid rgba(15, 23, 42, 0.03);
}

.spec-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.spec-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.spec-val {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-mono);
}

/* VM Arguments List */
.vmargs-list {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.vmarg-line {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.vmarg-line:last-child {
  margin-bottom: 0;
}

/* Charts Card Layout */
.chart-card {
  grid-column: span 2;
}

.chart-container-large {
  position: relative;
  width: 100%;
  height: 380px;
}

.chart-wrapper-small {
  position: relative;
  width: 160px;
  height: 160px;
  margin-bottom: 1.5rem;
}

.breakdown-legend {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.legend-item {
  display: flex;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  margin-right: 0.75rem;
}

.legend-dot.scavenge { background: var(--color-blue); }
.legend-dot.global { background: var(--color-red); }
.legend-dot.expansions { background: var(--color-amber); }

.legend-label {
  font-weight: 500;
}

.legend-val {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
}

/* Toggle Buttons for Charts */
.chart-controls {
  display: flex;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
}

.chart-control-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  align-self: center;
  margin-right: 0.75rem;
}

.btn-toggle {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.btn-toggle.active {
  background: var(--bg-primary);
  color: var(--color-blue);
  box-shadow: 0 1px 3px var(--shadow-color);
}

.dot-indicator {
  display: inline-flex;
  align-items: center;
  font-size: 0.85rem;
  font-weight: 500;
  margin-left: 1.5rem;
}

.dot-indicator::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  margin-right: 0.5rem;
}

.dot-indicator.scavenge::before { background: var(--color-blue); }
.dot-indicator.global::before { background: var(--color-red); }

/* ----------------------------------------------------
   6. GC EXPLORER LOG TABLE
---------------------------------------------------- */
.table-card {
  grid-column: span 2;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table-filter-bar {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.search-input-wrapper {
  position: relative;
  max-width: 320px;
  width: 100%;
}

.search-icon {
  position: absolute;
  left: 0.85rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

#log-search {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.6rem 1rem 0.6rem 2.25rem;
  color: var(--text-primary);
  font-size: 0.85rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

#log-search:focus {
  border-color: var(--color-blue);
}

.filters-group {
  display: flex;
  gap: 0.75rem;
}

.filters-group select {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.filters-group select:focus {
  border-color: var(--color-blue);
}

.table-wrapper {
  overflow-x: auto;
  max-height: 520px;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.data-table th, .data-table td {
  padding: 0.9rem 1.5rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border-color);
}

.data-table th {
  background: var(--table-header-bg);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  position: sticky;
  top: 0;
  z-index: 2;
}

.data-table th.sortable {
  cursor: pointer;
}

.data-table th.sortable:hover {
  color: var(--text-primary);
}

.sort-icon {
  width: 12px;
  height: 12px;
  margin-left: 0.25rem;
  vertical-align: middle;
  opacity: 0.5;
}

.data-table tbody tr {
  transition: background-color var(--transition-fast);
}

.data-table tbody tr:nth-child(even) {
  background-color: var(--table-stripe);
}

.data-table tbody tr:hover {
  background-color: var(--table-hover);
}

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

.badge-cell {
  display: inline-flex;
  align-items: center;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 3px 8px;
  border-radius: 4px;
}

.badge-cell.scavenge {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-blue);
}

.badge-cell.global {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-red);
}

.badge-cell.resize {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-amber);
}

.inspect-btn {
  background: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.8rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.inspect-btn:hover {
  color: var(--color-blue);
  border-color: var(--color-blue);
  background: var(--color-blue-glow);
}

.inspect-btn i {
  width: 12px;
  height: 12px;
}

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* Pagination */
.table-pagination {
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
}

.pagination-info {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pag-btn {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.pag-btn:hover:not(:disabled) {
  color: var(--text-primary);
  border-color: var(--text-muted);
}

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

.pag-btn i {
  width: 16px;
  height: 16px;
}

.pag-numbers {
  display: flex;
  gap: 0.35rem;
}

.pag-num {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  min-width: 32px;
  height: 32px;
  padding: 0 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

.pag-num:hover {
  border-color: var(--text-muted);
}

.pag-num.active {
  background: var(--color-blue);
  color: white;
  border-color: var(--color-blue);
}

/* ----------------------------------------------------
   7. AI DIAGNOSTICS & ALERTS
---------------------------------------------------- */
.diagnostics-summary {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem 2rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.diag-header-info h2 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.diag-header-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.health-gauge {
  text-align: right;
}

.gauge-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
}

.gauge-value {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  margin-top: 0.15rem;
}

.text-green { color: var(--color-green); }
.text-amber { color: var(--color-amber); }
.text-red { color: var(--color-red); }

.alerts-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.alert-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--text-muted);
  border-radius: var(--radius-sm);
  padding: 1.25rem 1.5rem;
  display: flex;
  gap: 1.25rem;
  box-shadow: 0 4px 6px -1px var(--shadow-color);
}

.alert-item.danger { border-left-color: var(--color-red); }
.alert-item.warning { border-left-color: var(--color-amber); }
.alert-item.success { border-left-color: var(--color-green); }

.alert-icon {
  display: flex;
  align-items: flex-start;
  margin-top: 0.1rem;
}

.alert-item.danger .alert-icon { color: var(--color-red); }
.alert-item.warning .alert-icon { color: var(--color-amber); }
.alert-item.success .alert-icon { color: var(--color-green); }

.alert-icon i {
  width: 22px;
  height: 22px;
}

.alert-content {
  flex-grow: 1;
}

.alert-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-primary);
}

.alert-desc {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

.recommendation-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  list-style: none;
}

.recommendation-list li {
  padding-left: 1.5rem;
  position: relative;
}

.recommendation-list li::before {
  content: '→';
  color: var(--color-blue);
  font-weight: 700;
  position: absolute;
  left: 0;
  top: 0;
}

.recommendation-list li strong {
  display: block;
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.recommendation-list li p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.5;
}

/* ----------------------------------------------------
   8. DETAIL DRAWER (GC INSPECTOR SLIDE-OUT)
---------------------------------------------------- */
.drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  z-index: 50;
  opacity: 1;
  transition: opacity var(--transition-normal);
}

.drawer-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.drawer-content {
  position: absolute;
  top: 0;
  right: 0;
  width: 500px;
  height: 100vh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.3);
  display: flex;
  flex-direction: column;
  transform: translateX(0);
  transition: transform var(--transition-normal);
}

.drawer-overlay.hidden .drawer-content {
  transform: translateX(100%);
}

.drawer-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.drawer-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.drawer-subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.15rem;
  display: block;
}

.close-drawer-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  display: flex;
}

.close-drawer-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.close-drawer-btn i {
  width: 20px;
  height: 20px;
}

.drawer-body {
  padding: 1.5rem 2rem;
  overflow-y: auto;
  flex-grow: 1;
}

.drawer-tabs {
  display: flex;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 3px;
  margin-bottom: 1.5rem;
}

.drawer-tab-btn {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: color var(--transition-fast), background var(--transition-fast);
}

.drawer-tab-btn.active {
  background: var(--bg-primary);
  color: var(--color-blue);
  box-shadow: 0 1px 3px var(--shadow-color);
}

.drawer-tab-panel {
  display: none;
}

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

.drawer-stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.drawer-stat-box {
  background: rgba(15, 23, 42, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
}

html[data-theme="light"] .drawer-stat-box {
  background: #f8fafc;
}

.box-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  display: block;
  margin-bottom: 0.25rem;
}

.box-val {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
}

.section-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  border-left: 3px solid var(--color-blue);
  padding-left: 0.5rem;
  margin: 1.5rem 0 0.85rem;
}

.drawer-mini-table {
  width: 100%;
  border-collapse: collapse;
}

.drawer-mini-table td, .drawer-mini-table th {
  padding: 0.65rem 0;
  font-size: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
}

html[data-theme="light"] .drawer-mini-table td, html[data-theme="light"] .drawer-mini-table th {
  border-bottom: 1px solid rgba(15, 23, 42, 0.03);
}

.drawer-mini-table th {
  color: var(--text-muted);
  font-weight: 500;
  text-align: left;
}

.drawer-mini-table tr:last-child td {
  border-bottom: none;
}

/* Raw XML view panel */
.xml-help-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.xml-pre-code {
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1rem;
  max-height: 480px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

.xml-code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #38bdf8; /* Soft blue color for XML code syntax */
  line-height: 1.5;
}

html[data-theme="light"] .xml-code {
  color: #0369a1;
}

/* Responsive Overrides */
@media (max-width: 1200px) {
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .grid-card.span-2 {
    grid-column: span 1;
  }
}

@media (max-width: 768px) {
  .app-container {
    grid-template-columns: 1fr;
  }
  .sidebar {
    display: none; /* In a production mobile layout, we'd add a hamburger menu */
  }
  .kpi-grid {
    grid-template-columns: 1fr;
  }
  .drawer-content {
    width: 100vw;
  }
}