/* ─── SETTINGS OVERLAY ───────────────────────────────────────── */
.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.settings-overlay.open {
  pointer-events: all;
  opacity: 1;
}

.settings-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.settings-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  height: 100%;
  background: var(--bg-surface);
  border-left: 1px solid var(--border-default);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateX(100%);
  transition: transform var(--transition-slow);
}

.settings-overlay.open .settings-panel {
  transform: translateX(0);
}

.settings-header {
  height: 52px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.settings-header h2 {
  font-size: var(--text-md);
  font-weight: var(--weight-semibold);
  flex: 1;
}

.settings-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.settings-close:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.settings-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0 24px;
}

.settings-section {
  padding: 16px 20px 8px;
}

.settings-section + .settings-section {
  border-top: 1px solid var(--border-subtle);
  margin-top: 8px;
}

.settings-section h3 {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 12px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  gap: 16px;
  padding: 4px 0;
}

.setting-row label {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: var(--weight-medium);
  flex: 1;
}

/* Theme toggle buttons */
.theme-toggle {
  display: flex;
  background: var(--bg-elevated);
  border-radius: var(--radius-sm);
  padding: 2px;
  gap: 2px;
}

.theme-btn {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  padding: 3px 10px;
  border-radius: calc(var(--radius-sm) - 1px);
  color: var(--text-tertiary);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.theme-btn.active {
  background: var(--bg-surface);
  color: var(--text-primary);
  box-shadow: var(--shadow-sm);
}

.theme-btn:hover:not(.active) {
  color: var(--text-secondary);
}

/* Select */
.setting-select {
  height: 30px;
  padding: 0 26px 0 8px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  cursor: pointer;
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L5 5L9 1' stroke='%238e8e96' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  min-width: 140px;
}

/* Toggle switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
  cursor: pointer;
}

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

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--bg-overlay);
  border-radius: var(--radius-full);
  transition: background var(--transition-base);
}

.toggle-track::after {
  content: '';
  position: absolute;
  width: 14px;
  height: 14px;
  left: 3px;
  top: 3px;
  background: var(--text-tertiary);
  border-radius: 50%;
  transition: transform var(--transition-base), background var(--transition-base);
}

.toggle-switch input:checked + .toggle-track {
  background: var(--accent);
}

.toggle-switch input:checked + .toggle-track::after {
  transform: translateX(16px);
  background: #fff;
}