/**
 * Little Social - Settings Component
 * Theme selection (Light/Dark/OLED), layout toggling,
 * timeline options, and keyword filtering.
 */

.settings-container {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  max-width: 640px;
}

.settings-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border-color);
}

.settings-section-title {
  font-size: var(--text-md);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.settings-section-description {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  margin-top: -4px;
}

/* Radio Option Cards (Theme & Layout) */
.options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: var(--space-3);
}

.option-card-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  background-color: var(--surface-bg);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
}

.option-card-label:hover {
  background-color: var(--surface-card-hover);
}

.option-card-label input[type="radio"] {
  display: none;
}

.option-card-label:has(input[type="radio"]:checked) {
  border-color: var(--accent-primary);
  background-color: var(--accent-subtle);
  color: var(--accent-primary);
  font-weight: var(--font-semibold);
}

/* Toggle Switch Row */
.setting-toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) 0;
}

.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--surface-bg);
  border: 1px solid var(--border-color);
  transition: var(--transition-fast);
  border-radius: var(--radius-full);
}

.toggle-slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 2px;
  bottom: 2px;
  background-color: var(--text-secondary);
  transition: var(--transition-fast);
  border-radius: var(--radius-full);
}

.toggle-switch input:checked + .toggle-slider {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background-color: #ffffff;
}

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

.theme-swatch {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
}

.theme-swatch-system {
  background: linear-gradient(135deg, #f8fafc 50%, #0b0f17 50%);
  border: 1px solid #64748b;
}

.theme-swatch-dark {
  background: #0b0f17;
  border: 1px solid #243042;
}

.theme-swatch-oled {
  background: #000000;
  border: 1px solid #27272a;
}

.theme-swatch-light {
  background: #f8fafc;
  border: 1px solid #cbd5e1;
}

.setting-text {
  min-width: 0;
}

.setting-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.setting-description {
  font-size: var(--text-xs);
  color: var(--text-secondary);
}

.toggle-switch {
  flex-shrink: 0;
}

.toggle-switch input:focus-visible + .toggle-slider {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.option-card-label:has(input[type="radio"]:focus-visible) {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

.keyword-input-row {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-2);
}

.keyword-input-row input {
  flex: 1;
}

.keyword-chip-list {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-top: var(--space-3);
}

.keyword-chip {
  background: var(--surface-bg);
  border: 1px solid var(--border-color);
  padding: 4px 10px;
}