* {
  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;
}

/* --- Popup-specific preset bar --- */
.rt-preset-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}