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

body {
  width: 320px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 13px;
  color: #1a1a1a;
  background: #ffffff;
}

.popup-container {
  padding: 16px;
}

h1 {
  font-size: 16px;
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid #e0e0e0;
}

h2 {
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
}

.section {
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid #f0f0f0;
}

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

.toggle-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

label {
  display: block;
  margin-bottom: 4px;
}

select {
  width: 100%;
  padding: 4px 8px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-size: 13px;
  margin-top: 4px;
}

fieldset {
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 8px 12px;
  margin-bottom: 8px;
}

legend {
  font-weight: 600;
  font-size: 12px;
  padding: 0 4px;
}

fieldset label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
  font-size: 12px;
}

fieldset .rt-color-swatch {
  width: 40px;
  height: 24px;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
  display: inline-block;
  vertical-align: middle;
}

fieldset input[type="text"] {
  width: 80px;
  padding: 2px 6px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-size: 12px;
  font-family: monospace;
}

.btn-secondary {
  background: #f0f0f0;
  border: 1px solid #ccc;
  border-radius: 3px;
  padding: 4px 10px;
  font-size: 12px;
  cursor: pointer;
  margin-top: 4px;
}

.btn-secondary:hover {
  background: #e0e0e0;
}

.btn-danger {
  background: #d9534f;
  color: white;
  border: 1px solid #c9302c;
  border-radius: 3px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  width: 100%;
}

.btn-danger:hover {
  background: #c9302c;
}

.subreddit-entry {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 6px;
  padding: 6px;
  background: #fafafa;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
}

.subreddit-entry input[type="text"] {
  flex: 1;
  min-width: 0;
}

.subreddit-entry .btn-remove {
  background: none;
  border: none;
  color: #999;
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
}

.subreddit-entry .btn-remove:hover {
  color: #d9534f;
}

.section-hint {
  font-size: 11px;
  color: #888;
  margin-bottom: 8px;
}

.subreddit-entry-header {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-bottom: 4px;
}

.subreddit-entry-header input[type="text"] {
  flex: 1;
  min-width: 0;
  padding: 2px 6px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-size: 12px;
  font-family: monospace;
}

.subreddit-entry-mode {
  display: flex;
  gap: 4px;
  align-items: center;
  margin-bottom: 4px;
}

.subreddit-entry-mode select {
  width: auto;
  padding: 2px 6px;
  font-size: 11px;
  margin-top: 0;
}

.subreddit-entry-colors {
  display: flex;
  gap: 4px;
  align-items: center;
}

.subreddit-entry-colors .rt-color-swatch {
  width: 40px;
  height: 24px;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: pointer;
}

/* --- Color Picker Widget --- */
.rt-color-picker {
  margin: 8px 0;
  font-size: 12px;
}

.rt-picker-tabs {
  display: flex;
  border-bottom: 1px solid #ccc;
  margin-bottom: 8px;
}

.rt-picker-tab {
  flex: 1;
  padding: 4px 8px;
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  font-size: 11px;
  font-family: inherit;
  cursor: pointer;
  color: #666;
}

.rt-picker-tab:hover {
  color: #333;
}

.rt-picker-tab--active {
  color: #1a1a1a;
  border-bottom-color: #4a90d9;
  font-weight: 600;
}

.rt-picker-panel {
  max-height: 180px;
  overflow-y: auto;
}

.rt-picker-grid--palette {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rt-picker-grid-row {
  display: flex;
  gap: 2px;
}

.rt-picker-swatch {
  width: 16px;
  height: 16px;
  border-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.1);
  cursor: pointer;
  flex-shrink: 0;
}

.rt-picker-swatch:hover {
  border-color: rgba(0, 0, 0, 0.4);
  transform: scale(1.2);
  z-index: 1;
  position: relative;
}

.rt-picker-swatch--selected {
  border: 2px solid #1a1a1a;
  box-shadow: 0 0 0 1px white;
}

.rt-picker-grid--named {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 2px 0;
}

.rt-picker-named-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  width: 40px;
}

.rt-picker-named-item .rt-picker-swatch {
  width: 24px;
  height: 18px;
}

.rt-picker-named-label {
  font-size: 8px;
  color: #888;
  text-align: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 100%;
  line-height: 1.2;
}

.rt-picker-panel--custom {
  max-height: none;
  overflow: visible;
}

.rt-picker-sv-wrap {
  position: relative;
  margin-bottom: 6px;
}

.rt-picker-sv {
  display: block;
  width: 100%;
  border: 1px solid #ccc;
  border-radius: 3px;
  cursor: crosshair;
}

.rt-picker-sv-cursor {
  position: absolute;
  width: 10px;
  height: 10px;
  border: 2px solid white;
  border-radius: 50%;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  transform: translate(-50%, -50%);
}

.rt-picker-hue {
  position: relative;
  height: 14px;
  border: 1px solid #ccc;
  border-radius: 3px;
  background: linear-gradient(to right, #ff0000, #ffff00, #00ff00, #00ffff, #0000ff, #ff00ff, #ff0000);
  cursor: crosshair;
}

.rt-picker-hue-indicator {
  position: absolute;
  top: -1px;
  width: 2px;
  height: calc(100% + 2px);
  background: white;
  box-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  transform: translateX(-50%);
}

/* Picker dark mode */
.rt-dark .rt-picker-tabs,
.rt-color-popover.rt-dark .rt-picker-tabs {
  border-bottom-color: #555;
}

.rt-dark .rt-picker-tab,
.rt-color-popover.rt-dark .rt-picker-tab {
  color: #999;
}

.rt-dark .rt-picker-tab:hover,
.rt-color-popover.rt-dark .rt-picker-tab:hover {
  color: #ccc;
}

.rt-dark .rt-picker-tab--active,
.rt-color-popover.rt-dark .rt-picker-tab--active {
  color: #e0e0e0;
  border-bottom-color: #4a90d9;
}

.rt-dark .rt-picker-swatch,
.rt-color-popover.rt-dark .rt-picker-swatch {
  border-color: rgba(255, 255, 255, 0.1);
}

.rt-dark .rt-picker-swatch:hover,
.rt-color-popover.rt-dark .rt-picker-swatch:hover {
  border-color: rgba(255, 255, 255, 0.4);
}

.rt-dark .rt-picker-swatch--selected,
.rt-color-popover.rt-dark .rt-picker-swatch--selected {
  border-color: #e0e0e0;
  box-shadow: 0 0 0 1px #333;
}

.rt-dark .rt-picker-named-label,
.rt-color-popover.rt-dark .rt-picker-named-label {
  color: #777;
}

.rt-dark .rt-picker-sv,
.rt-color-popover.rt-dark .rt-picker-sv {
  border-color: #555;
}

.rt-dark .rt-picker-hue,
.rt-color-popover.rt-dark .rt-picker-hue {
  border-color: #555;
}