/* ── Warm Ink Settings Panel ── */

/* Panel container — slides in from right */
#settings-panel {
  position: fixed;
  right: 0;
  top: 0;
  bottom: 0;
  width: var(--settings-width);
  max-width: 90vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  box-shadow: -4px 0 32px var(--shadow);
  z-index: 501;
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-out);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}
#settings-panel.open {
  transform: translateX(0);
}

/* Backdrop */
#settings-overlay {
  position: fixed;
  inset: 0;
  background: var(--overlay-bg);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal);
}
#settings-overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

/* Header */
.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.25rem 0.75rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.settings-title {
  font-family: var(--font-ui);
  font-size: var(--font-md);
  font-weight: 700;
  color: var(--text);
  margin: 0;
}
.settings-close-btn {
  width: 28px;
  height: 28px;
  border: none;
  background: transparent;
  color: var(--muted);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.4rem;
  line-height: 1;
  padding: 2px 6px;
  transition: background var(--duration-fast), color var(--duration-fast);
}
.settings-close-btn:hover {
  background: var(--accent-soft);
  color: var(--accent);
}
.settings-close-btn svg { width: 16px; height: 16px; }

/* Scrollable body */
.settings-body {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Group / Section */
.settings-group {
  display: flex;
  flex-direction: column;
}
.settings-label {
  display: block;
  font-size: var(--font-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 0.6rem;
  font-family: var(--font-ui);
}

/* Section with top border separator */
.settings-group-sep {
  border-top: 1px solid var(--border);
  padding-top: 1.25rem;
  margin-top: 0.5rem;
}

/* Theme buttons grid */
.settings-theme-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}
.settings-theme-btn {
  padding: 0.5rem;
  border-radius: var(--radius);
  border: 2px solid var(--border);
  font-size: var(--font-xs);
  cursor: pointer;
  font-family: var(--font-ui);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  transition: border-color var(--duration-fast), box-shadow var(--duration-fast);
}
.settings-theme-btn:hover {
  border-color: var(--accent);
}
.settings-theme-btn.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent);
}
.settings-theme-btn[data-theme="light"] {
  background: #f6f3ed;
  color: #2c2418;
}
.settings-theme-btn[data-theme="dark"] {
  background: #161614;
  color: #d4cfc6;
}
.settings-theme-btn[data-theme="sepia"] {
  background: #ede4d3;
  color: #33291c;
}
.settings-theme-btn i,
.settings-theme-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* Theme hint text */
.settings-hint {
  font-size: var(--font-xs);
  color: var(--muted);
  margin-top: 0.4rem;
}

/* Font size stepper */
.settings-stepper-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.settings-stepper-btn {
  width: 32px;
  height: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  line-height: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--duration-fast), border-color var(--duration-fast);
}
.settings-stepper-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.settings-stepper-label {
  font-size: 0.9rem;
  color: var(--text);
  min-width: 60px;
  text-align: center;
}

/* Voice list */
.settings-voice-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

/* Number inputs (goals) */
.settings-input-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.settings-number-input {
  padding: 0.4rem 0.6rem;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--duration-fast);
}
.settings-number-input:focus {
  outline: none;
  border-color: var(--accent);
}
.settings-input-unit {
  font-size: 0.82rem;
  color: var(--muted);
}

/* Checkbox toggle rows (writing modes) */
.settings-check-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.settings-check-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
}
.settings-check-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
  cursor: pointer;
  flex-shrink: 0;
}

/* Quick link button */
.settings-link-btn {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.9rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 0.88rem;
  font-family: var(--font-ui);
  cursor: pointer;
  text-align: left;
  transition: background var(--duration-fast), border-color var(--duration-fast);
}
.settings-link-btn:hover {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent);
}
.settings-link-btn i,
.settings-link-btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}