/* Light theme (default) */
:root {
  --color-bg-primary: #ffffff;
  --color-bg-secondary: #f5f5f5;
  --color-bg-tertiary: #fafafa;
  --color-bg-button: #f0f0f0;
  --color-bg-button-hover: #e8e8e8;
  --color-bg-highlight: #ffe58a;
  --color-bg-focus: #fff3cd;
  --color-bg-focus-border: #ffc107;
  --color-bg-timestamp: #e8f4ff;
  --color-bg-timestamp-hover: #cce5ff;
  --color-bg-hover: #f0f7ff;

  --color-text-primary: #222;
  --color-text-secondary: #666;
  --color-text-tertiary: #444;
  --color-text-quaternary: #333;
  --color-text-muted: #999;
  --color-text-inverse: #fff;

  --color-border-primary: #ccc;
  --color-border-secondary: #ddd;
  --color-border-tertiary: #ececec;
  --color-border-focus: #e1e1e1;

  --color-link: #0366d6;
  --color-badge: #0b6efd;
  --color-chart-stroke: #ccc;
  --color-chart-stroke-secondary: #fff;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.08);
  --shadow-dropdown: 0 2px 6px rgba(0, 0, 0, 0.12);
}

/* Dark theme */
[data-theme="dark"] {
  --color-bg-primary: #1a1a1a;
  --color-bg-secondary: #2a2a2a;
  --color-bg-tertiary: #252525;
  --color-bg-button: #333333;
  --color-bg-button-hover: #3d3d3d;
  --color-bg-highlight: #6b5a00;
  --color-bg-focus: #4a4200;
  --color-bg-focus-border: #7a6b00;
  --color-bg-timestamp: #1a3a52;
  --color-bg-timestamp-hover: #2a4a62;
  --color-bg-hover: #1a2a3a;

  --color-text-primary: #e0e0e0;
  --color-text-secondary: #a0a0a0;
  --color-text-tertiary: #b8b8b8;
  --color-text-quaternary: #cccccc;
  --color-text-muted: #888888;
  --color-text-inverse: #ffffff;

  --color-border-primary: #444444;
  --color-border-secondary: #3a3a3a;
  --color-border-tertiary: #2f2f2f;
  --color-border-focus: #3f3f3f;

  --color-link: #58a6ff;
  --color-badge: #2f81f7;
  --color-chart-stroke: #555555;
  --color-chart-stroke-secondary: #2a2a2a;

  --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-dropdown: 0 2px 6px rgba(0, 0, 0, 0.4);
}

body {
  font-family: Arial, sans-serif;
  margin: 24px;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  transition: background-color 0.3s ease, color 0.3s ease;
}

header {
  margin-bottom: 16px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}

.channel-dropdown {
  position: relative;
  min-width: 220px;
  flex: 0 1 260px;
}

.channel-dropdown summary {
  list-style: none;
  cursor: pointer;
  border: 1px solid var(--color-border-primary);
  border-radius: 4px;
  padding: 6px 8px;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  display: inline-flex;
  align-items: center;
  min-height: 32px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.channel-dropdown summary::-webkit-details-marker {
  display: none;
}

.channel-dropdown[open] summary {
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
}

.channel-options {
  margin-top: 4px;
  padding: 8px;
  border: 1px solid var(--color-border-primary);
  border-radius: 0 0 4px 4px;
  background: var(--color-bg-primary);
  max-height: 240px;
  overflow-y: auto;
  box-shadow: var(--shadow-dropdown);
  min-width: 220px;
  width: max(220px, 100%);
}

.channel-option {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 6px;
  font-size: 12px;
}

.channel-option:last-child {
  margin-bottom: 0;
}

input,
select,
button {
  padding: 6px 8px;
}

.muted {
  color: var(--color-text-secondary);
  font-size: 12px;
}

#results .item {
  border-bottom: 1px solid var(--color-border-secondary);
  padding: 12px 0;
}

.summary-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-start;
  margin-top: 12px;
}

.summary-left {
  flex: 0 1 280px;
  max-width: 360px;
}

.summary-right {
  flex: 1 1 0%;
  min-width: 0;
  background: var(--color-bg-secondary);
  padding: 12px;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
}

#metrics {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#metricsStatus {
  min-height: 16px;
}

#metricsContent {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

#frequencyChart {
  margin-top: 8px;
}

#frequencyChart svg {
  max-width: 100%;
}

#frequencyChart .axis path,
#frequencyChart .axis line {
  stroke: var(--color-chart-stroke);
}

#frequencyChart .axis text {
  fill: var(--color-text-primary);
}

#frequencyChart .freq-layer rect {
  stroke: var(--color-chart-stroke-secondary);
  stroke-width: 0.5px;
}

.freq-legend {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.freq-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.freq-legend-swatch {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  display: inline-block;
}

.transcript {
  background: var(--color-bg-tertiary);
  padding: 8px;
  margin-top: 6px;
  max-height: 200px;
  overflow-y: auto;
}

.highlight-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: none;
  overflow: visible;
}

.highlight-row {
  padding: 4px 0;
  border-bottom: 1px solid var(--color-border-tertiary);
  cursor: pointer;
  transition: background 0.2s;
}

.highlight-row:hover {
  background: var(--color-bg-hover);
}

.highlight-row:last-child {
  border-bottom: none;
}

.transcript-wrapper {
  margin-top: 8px;
}

.pager {
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

mark {
  background: var(--color-bg-highlight);
  color: var(--color-text-primary);
  padding: 0 2px;
}


.badge-row {
  margin-top: 6px;
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.badge {
  background: var(--color-badge);
  color: var(--color-text-inverse);
  border-radius: 999px;
  padding: 2px 8px;
  font-size: 12px;
}

.transcript-toggle {
  margin-top: 8px;
  padding: 6px 12px;
  background: var(--color-bg-button);
  border: 1px solid var(--color-border-primary);
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  color: var(--color-link);
  transition: background 0.2s;
}

.transcript-toggle:hover {
  background: var(--color-bg-button-hover);
}

.transcript-toggle:disabled {
  cursor: not-allowed;
  color: var(--color-text-muted);
}

.full-transcript {
  margin-top: 12px;
  padding: 12px;
  background: var(--color-bg-tertiary);
  border: 1px solid var(--color-border-focus);
  border-radius: 4px;
  max-height: 400px;
  overflow-y: auto;
}

.transcript-segment {
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-tertiary);
  transition: background 0.3s, padding 0.3s;
  border-radius: 4px;
}

.transcript-segment:last-child {
  border-bottom: none;
  margin-bottom: 0;
}

.transcript-segment.focused {
  background: var(--color-bg-focus);
  padding: 8px;
  border: 2px solid var(--color-bg-focus-border);
  animation: pulse-highlight 1s ease-in-out;
}

@keyframes pulse-highlight {
  0%, 100% {
    background: var(--color-bg-focus);
  }
  50% {
    opacity: 0.8;
  }
}

.timestamp-link {
  display: inline-block;
  color: var(--color-link);
  text-decoration: none;
  font-weight: bold;
  font-size: 11px;
  font-family: monospace;
  margin-right: 8px;
  padding: 2px 6px;
  background: var(--color-bg-timestamp);
  border-radius: 3px;
  transition: background 0.2s;
}

.timestamp-link:hover {
  background: var(--color-bg-timestamp-hover);
  text-decoration: underline;
}

.transcript-text {
  color: var(--color-text-quaternary);
  line-height: 1.5;
}

.transcript-header {
  font-weight: bold;
  margin-bottom: 8px;
  color: var(--color-text-tertiary);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.transcript-close {
  cursor: pointer;
  color: var(--color-text-secondary);
  font-size: 18px;
  padding: 0 4px;
}

.transcript-close:hover {
  color: var(--color-text-primary);
}

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