/* ======================================
   JBoss Log Analyzer — Design System
   ====================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Colors */
  --bg-primary: #0f1117;
  --bg-secondary: #161922;
  --bg-card: #1c1f2e;
  --bg-hover: #232738;
  --bg-input: #1a1d2b;

  --text-primary: #e8eaf0;
  --text-secondary: #8b8fa3;
  --text-muted: #5c6078;

  --border: #2a2e42;
  --border-hover: #3d4260;

  /* Log Level Colors */
  --info-bg: rgba(56, 189, 248, 0.08);
  --info-border: rgba(56, 189, 248, 0.25);
  --info-text: #38bdf8;
  --info-glow: rgba(56, 189, 248, 0.15);

  --warn-bg: rgba(251, 191, 36, 0.08);
  --warn-border: rgba(251, 191, 36, 0.25);
  --warn-text: #fbbf24;
  --warn-glow: rgba(251, 191, 36, 0.15);

  --error-bg: rgba(248, 113, 113, 0.08);
  --error-border: rgba(248, 113, 113, 0.25);
  --error-text: #f87171;
  --error-glow: rgba(248, 113, 113, 0.15);

  --other-bg: rgba(148, 163, 184, 0.08);
  --other-border: rgba(148, 163, 184, 0.25);
  --other-text: #94a3b8;

  --accent: #6366f1;
  --accent-hover: #818cf8;

  /* Spacing */
  --radius: 12px;
  --radius-sm: 8px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* ======== Header ======== */

.app-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
}

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

.app-header .logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.app-header h1 {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.app-header h1 span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
  margin-left: 0.5rem;
}

/* ======== Main Container ======== */

.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem;
}

/* ======== Upload Zone ======== */

.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  background: var(--bg-secondary);
  margin-bottom: 1.5rem;
}

.upload-zone:hover,
.upload-zone.dragging {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.04);
  box-shadow: 0 0 30px rgba(99, 102, 241, 0.08);
}

.upload-zone .upload-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  opacity: 0.6;
}

.upload-zone p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.upload-zone p strong {
  color: var(--accent);
}

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

.upload-zone .file-name {
  margin-top: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent);
}

/* ======== Stats Dashboard ======== */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.stat-card.active::before { opacity: 1; }
.stat-card.active { border-color: var(--border-hover); }

.stat-card.info::before { background: var(--info-text); }
.stat-card.warn::before { background: var(--warn-text); }
.stat-card.error::before { background: var(--error-text); }
.stat-card.other::before { background: var(--other-text); }
.stat-card.all::before { background: var(--accent); }

.stat-card .stat-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.stat-card.all .stat-icon { background: rgba(99, 102, 241, 0.12); }
.stat-card.info .stat-icon { background: var(--info-bg); }
.stat-card.warn .stat-icon { background: var(--warn-bg); }
.stat-card.error .stat-icon { background: var(--error-bg); }
.stat-card.other .stat-icon { background: var(--other-bg); }

.stat-card .stat-info { display: flex; flex-direction: column; }

.stat-card .stat-count {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.stat-card.all .stat-count { color: var(--accent); }
.stat-card.info .stat-count { color: var(--info-text); }
.stat-card.warn .stat-count { color: var(--warn-text); }
.stat-card.error .stat-count { color: var(--error-text); }
.stat-card.other .stat-count { color: var(--other-text); }

.stat-card .stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

/* ======== Timeline Chart ======== */

.chart-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  position: relative;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.chart-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.chart-legend {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  transition: all 0.2s ease;
  user-select: none;
}

.legend-item:hover {
  background: var(--bg-hover);
}

.legend-item:not(.active) {
  opacity: 0.35;
}

.legend-item:not(.active) .legend-dot {
  background: var(--text-muted) !important;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  display: inline-block;
}

.dot-info  { background: rgba(56, 189, 248, 0.7); }
.dot-warn  { background: rgba(251, 191, 36, 0.7); }
.dot-error { background: rgba(248, 113, 113, 0.8); }
.dot-other { background: rgba(148, 163, 184, 0.5); }

.chart-canvas-wrap {
  width: 100%;
  overflow: hidden;
}

.chart-canvas-wrap canvas {
  display: block;
  width: 100%;
}

.chart-tooltip {
  position: absolute;
  background: rgba(22, 25, 34, 0.95);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  line-height: 1.5;
  color: var(--text-primary);
  pointer-events: none;
  z-index: 50;
  backdrop-filter: blur(8px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  white-space: nowrap;
  transition: opacity 0.15s ease;
}

/* ======== Chart Placeholder & Loading ======== */

.chart-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  gap: 0.75rem;
}

.chart-placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.4;
}

.chart-placeholder p {
  font-size: 0.88rem;
  color: var(--text-muted);
  text-align: center;
}

.load-chart-btn {
  margin-top: 0.5rem;
  padding: 0.65rem 1.5rem;
  background: linear-gradient(135deg, var(--accent), #818cf8);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 2px 12px rgba(99, 102, 241, 0.3);
}

.load-chart-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.45);
}

.load-chart-btn:active {
  transform: translateY(0);
}

.chart-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 1.5rem;
  gap: 1rem;
}

.chart-loading p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.chart-spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ======== Anomaly Detection Panel ======== */

.anomaly-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  position: relative;
  border-left: 3px solid var(--error-text);
}

.anomaly-header {
  margin-bottom: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  padding: 0.25rem 0;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}

.anomaly-header:hover {
  background: var(--bg-hover);
}

.anomaly-header-left {
  flex: 1;
  min-width: 0;
}

.anomaly-panel:not(.collapsed) .anomaly-header {
  margin-bottom: 1rem;
}

.anomaly-chevron {
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: transform 0.25s ease;
  flex-shrink: 0;
  margin-left: 0.75rem;
}

.anomaly-panel:not(.collapsed) .anomaly-chevron {
  transform: rotate(90deg);
}

.anomaly-panel.collapsed .anomaly-list {
  display: none;
}

/* Heatmap anomaly toggle button */
.heatmap-header-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.anomaly-toggle-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0.2rem 0.45rem;
  line-height: 1;
  transition: all 0.2s ease;
  opacity: 0.5;
}

.anomaly-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  opacity: 1;
}

.anomaly-toggle-btn.active {
  background: rgba(251, 191, 36, 0.15);
  border-color: rgba(251, 191, 36, 0.4);
  color: #fbbf24;
  opacity: 1;
  box-shadow: 0 0 6px rgba(251, 191, 36, 0.3);
}

.anomaly-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.anomaly-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  border-radius: 12px;
  background: var(--error-text);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.anomaly-subtitle {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.anomaly-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.anomaly-card {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: background 0.2s ease;
}

.anomaly-card:hover {
  background: var(--bg-hover);
}

.anomaly-card.severity-critical {
  border-left: 3px solid var(--error-text);
}

.anomaly-card.severity-warning {
  border-left: 3px solid var(--warn-text);
}

.anomaly-severity {
  flex-shrink: 0;
  font-size: 1.1rem;
  line-height: 1;
  margin-top: 2px;
}

.anomaly-body {
  flex: 1;
  min-width: 0;
}

.anomaly-message {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.4;
}

.anomaly-detail {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  margin-top: 0.2rem;
}

.anomaly-tag {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-right: 0.35rem;
}

.anomaly-tag.tag-critical {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
}

.anomaly-tag.tag-warning {
  background: var(--warn-bg);
  color: var(--warn-text);
  border: 1px solid var(--warn-border);
}

.anomaly-tag.tag-spike { background: rgba(239, 68, 68, 0.1); color: #ef4444; border: 1px solid rgba(239, 68, 68, 0.2); }
.anomaly-tag.tag-concentration { background: rgba(168, 85, 247, 0.1); color: #a855f7; border: 1px solid rgba(168, 85, 247, 0.2); }
.anomaly-tag.tag-burst { background: rgba(245, 158, 11, 0.1); color: #f59e0b; border: 1px solid rgba(245, 158, 11, 0.2); }
.anomaly-tag.tag-silence { background: rgba(107, 114, 128, 0.1); color: #6b7280; border: 1px solid rgba(107, 114, 128, 0.2); }

/* Pulsing indicator for anomalous heatmap cells */
.heatmap-cell.anomaly-pulse {
  animation: anomalyPulse 1.5s ease-in-out infinite;
  box-shadow: 0 0 6px rgba(248, 113, 113, 0.6);
}

@keyframes anomalyPulse {
  0%, 100% { box-shadow: 0 0 4px rgba(248, 113, 113, 0.4); }
  50% { box-shadow: 0 0 12px rgba(248, 113, 113, 0.9); }
}

/* ======== Error Heatmap ======== */

.heatmap-container {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  position: relative;
  min-width: 0;
}

.heatmaps-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.heatmap-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.heatmap-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
}

.heatmap-legend {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.heatmap-legend-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-weight: 500;
  padding: 0 0.25rem;
}

.heatmap-legend-cell {
  width: 14px;
  height: 14px;
  border-radius: 3px;
  display: inline-block;
}

.heatmap-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 3px;
  padding: 0.25rem 0;
}

.heatmap-cell {
  width: 18px;
  height: 18px;
  border-radius: 3px;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
  position: relative;
}

.heatmap-cell:hover {
  transform: scale(1.4);
  z-index: 2;
  box-shadow: 0 0 8px rgba(0, 0, 0, 0.4);
}

/* Heat levels — transparent to deep red */
.heat-0 {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.heat-1 {
  background: rgba(248, 113, 113, 0.25);
  border: 1px solid rgba(248, 113, 113, 0.15);
}

.heat-2 {
  background: rgba(239, 68, 68, 0.5);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.heat-3 {
  background: rgba(220, 38, 38, 0.75);
  border: 1px solid rgba(220, 38, 38, 0.5);
}

.heat-4 {
  background: rgba(185, 28, 28, 1.0);
  border: 1px solid rgba(153, 27, 27, 0.8);
}

/* Heat levels — INFO (blue) */
.heat-info-0 {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.heat-info-1 {
  background: rgba(56, 189, 248, 0.2);
  border: 1px solid rgba(56, 189, 248, 0.12);
}

.heat-info-2 {
  background: rgba(56, 189, 248, 0.45);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.heat-info-3 {
  background: rgba(14, 165, 233, 0.7);
  border: 1px solid rgba(14, 165, 233, 0.5);
}

.heat-info-4 {
  background: rgba(2, 132, 199, 1.0);
  border: 1px solid rgba(3, 105, 161, 0.8);
}

/* Heat levels — WARN (amber) */
.heat-warn-0 {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.heat-warn-1 {
  background: rgba(251, 191, 36, 0.2);
  border: 1px solid rgba(251, 191, 36, 0.12);
}

.heat-warn-2 {
  background: rgba(245, 158, 11, 0.45);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.heat-warn-3 {
  background: rgba(217, 119, 6, 0.7);
  border: 1px solid rgba(217, 119, 6, 0.5);
}

.heat-warn-4 {
  background: rgba(180, 83, 9, 1.0);
  border: 1px solid rgba(146, 64, 14, 0.8);
}

.heatmap-hour-label {
  width: 100%;
  display: flex;
  gap: 3px;
  padding-top: 0.35rem;
}

.heatmap-hour-label span {
  font-size: 0.65rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  text-align: center;
  flex: 0 0 18px;
}

/* ======== Toolbar ======== */

.toolbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.search-box {
  flex: 1;
  min-width: 250px;
  position: relative;
}

.search-box .search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: 0.9rem;
  pointer-events: none;
}

.search-box input {
  width: 100%;
  padding: 0.7rem 1rem 0.7rem 2.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  font-family: inherit;
  outline: none;
  transition: all 0.2s ease;
}

.search-box input::placeholder {
  color: var(--text-muted);
}

.search-box input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.exclude-box input:focus {
  border-color: var(--error-text);
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.12);
}

.log-count {
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}

/* ======== Time Range Filter ======== */

.time-range {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.time-label {
  font-size: 1rem;
  color: var(--text-muted);
}

.time-range input[type="time"] {
  padding: 0.55rem 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.85rem;
  font-family: 'JetBrains Mono', monospace;
  outline: none;
  transition: all 0.2s ease;
  width: 120px;
}

.time-range input[type="time"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12);
}

.time-range input[type="time"]::-webkit-calendar-picker-indicator {
  filter: invert(0.6);
  cursor: pointer;
}

.time-separator {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ======== Log Table ======== */

.log-table-wrap {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.log-table thead {
  background: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 10;
}

.log-table th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  user-select: none;
}

.log-table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid rgba(42, 46, 66, 0.5);
  vertical-align: top;
}

.log-table tbody tr {
  transition: background 0.15s ease;
}

.log-table tbody tr:hover {
  background: var(--bg-hover);
}

.log-table tbody tr:last-child td {
  border-bottom: none;
}

/* Row level styling */
.log-table tbody tr.level-info td:first-child { border-left: 3px solid var(--info-text); }
.log-table tbody tr.level-warn td:first-child { border-left: 3px solid var(--warn-text); }
.log-table tbody tr.level-error td:first-child { border-left: 3px solid var(--error-text); }
.log-table tbody tr.level-other td:first-child { border-left: 3px solid var(--other-text); }

/* Column widths */
.col-line { width: 50px; }
.col-time { width: 110px; }
.col-level { width: 80px; }
.col-source { width: 220px; }
.col-preview { min-width: 250px; }
.col-expand { width: 40px; text-align: center; }

.cell-line {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.cell-time {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  white-space: nowrap;
  font-size: 0.82rem;
}

.cell-source {
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  font-size: 0.78rem;
  word-break: break-all;
}

.cell-preview {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 400px;
}

/* ======== Clickable Rows ======== */

.log-row {
  cursor: pointer;
  user-select: none;
}

.log-row:hover {
  background: var(--bg-hover) !important;
}

.log-row.row-expanded {
  background: var(--bg-card);
}

.cell-expand {
  text-align: center;
  width: 40px;
}

.expand-icon {
  display: inline-block;
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform 0.25s ease, color 0.2s ease;
}

.row-expanded .expand-icon {
  transform: rotate(90deg);
  color: var(--accent);
}

/* ======== Expandable Detail Row ======== */

.detail-row td {
  padding: 0 !important;
  border-bottom: 1px solid var(--border) !important;
  border-left: 3px solid var(--accent) !important;
  max-width: 0;
}

.detail-row:hover {
  background: transparent !important;
}

.detail-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
  padding: 0 1.25rem;
  background: rgba(99, 102, 241, 0.03);
}

.detail-row-open .detail-content {
  max-height: 500px;
  padding: 1rem 1.25rem;
}

.detail-header {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.detail-message {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--text-primary);
  white-space: pre;
  overflow-x: auto;
  margin: 0;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  max-height: 350px;
  overflow-y: auto;
}

/* Level badges */
.level-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.level-badge.badge-info {
  background: var(--info-bg);
  color: var(--info-text);
  border: 1px solid var(--info-border);
}

.level-badge.badge-warn {
  background: var(--warn-bg);
  color: var(--warn-text);
  border: 1px solid var(--warn-border);
}

.level-badge.badge-error {
  background: var(--error-bg);
  color: var(--error-text);
  border: 1px solid var(--error-border);
}

.level-badge.badge-other {
  background: var(--other-bg);
  color: var(--other-text);
  border: 1px solid var(--other-border);
}

/* ======== Empty & Loading States ======== */

.empty-state {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
}

.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  opacity: 0.4;
}

.empty-state p {
  font-size: 0.95rem;
}

.hidden { display: none !important; }

/* ======== Scrollbar ======== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--border-hover); }

/* ======== Highlight search matches ======== */
mark {
  background: rgba(251, 191, 36, 0.25);
  color: var(--warn-text);
  border-radius: 2px;
  padding: 0 2px;
}

/* ======== Responsive ======== */
@media (max-width: 768px) {
  .app-header { padding: 0.75rem 1rem; }
  .container { padding: 1rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .heatmaps-row { grid-template-columns: 1fr; }
  .toolbar { flex-direction: column; }
  .search-box { min-width: 100%; }
  .col-source, .col-thread { display: none; }
  .log-table th:nth-child(4),
  .log-table td:nth-child(4),
  .log-table th:nth-child(5),
  .log-table td:nth-child(5) { display: none; }
}

/* ======== Animations ======== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeIn 0.4s ease forwards;
}

@keyframes countUp {
  from { opacity: 0; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1); }
}

.stat-count {
  animation: countUp 0.5s ease forwards;
}