.settings-overlay {
  position: fixed;
  inset: 0;
  z-index: 220;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 3vw, 2.25rem);
  background: var(--nv-scrim);
  opacity: 0;
  transition: opacity var(--nv-ease);
}

.settings-overlay.is-open { opacity: 1; }
.settings-overlay[hidden] { display: none; }

.settings-overlay__dialog {
  width: min(1040px, 100%);
  height: min(760px, calc(100dvh - 2rem));
  display: grid;
  grid-template-columns: 204px minmax(0, 1fr);
  overflow: hidden;
  border: 1px solid var(--rule-strong);
  border-radius: var(--nv-r-md);
  background: var(--paper);
  box-shadow: 0 18px 60px var(--nv-shadow-ink-strong);
  transform: translateY(10px);
  transition: transform var(--nv-ease-slow);
}

.settings-overlay.is-open .settings-overlay__dialog {
  transform: none;
}

.settings-nav {
  background: var(--paper-alt);
  border-right: 1px solid var(--rule);
  padding: var(--nv-sp-5) var(--nv-sp-3);
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-1);
}

.settings-search {
  min-height: 34px;
  display: flex;
  align-items: center;
  gap: var(--nv-sp-2);
  padding: 0 var(--nv-sp-2);
  margin-bottom: var(--nv-sp-3);
  border: 1px solid var(--rule);
  border-radius: var(--nv-r-md);
  color: var(--nv-text-muted);
  background: var(--paper);
}

.settings-search:focus-within {
  border-color: var(--moss);
  color: var(--moss);
}

.settings-search input {
  min-width: 0;
  flex: 1;
  font-family: var(--font-ui);
  font-size: 0.82rem;
  color: var(--nv-text);
}

.settings-nav__group {
  margin: var(--nv-sp-2) 0 var(--nv-sp-1);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ochre-ink);
}

.settings-nav a {
  border-radius: var(--nv-r-md);
  padding: 0.56rem var(--nv-sp-3);
  font-family: var(--font-ui);
  font-size: 0.84rem;
  color: var(--nv-text-dim);
}

.settings-nav a:hover,
.settings-nav a:focus-visible,
.settings-nav a.is-active {
  background: var(--nv-tint-accent-low);
  color: var(--moss);
  outline: none;
}

.settings-panel {
  min-width: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.settings-overlay__head {
  min-height: 56px;
  padding: 0 var(--nv-sp-5);
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--nv-sp-3);
  flex-shrink: 0;
}

.settings-overlay__title {
  font-family: var(--nv-font-display);
  font-size: 1.15rem;
  color: var(--nv-text);
}

.settings-overlay__dismiss {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 1px solid transparent;
  border-radius: var(--nv-r-sm);
  color: var(--nv-text-dim);
  font-size: 20px;
  line-height: 1;
  transition: border-color var(--nv-ease), color var(--nv-ease);
}

.settings-overlay__dismiss:hover,
.settings-overlay__dismiss:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
  outline: none;
}

.settings-overlay__body {
  flex: 1;
  overflow-y: auto;
  padding: clamp(2rem, 4vw, 3rem) clamp(1.75rem, 4vw, 3.25rem);
}

.settings-content {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
  max-width: 760px;
}

.settings-section {
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-4);
  scroll-margin-top: var(--nv-sp-5);
}

.settings-section--wide {
  max-width: 100%;
}

.settings-section[hidden] {
  display: none;
}

.settings-section__title {
  font-family: var(--nv-font-display);
  font-size: clamp(1.35rem, 1.1rem + 0.8vw, 1.85rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--nv-text);
}

.settings-rows {
  display: grid;
  border-top: 1px solid var(--rule);
}

.settings-row {
  min-height: 64px;
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(200px, 260px);
  align-items: center;
  gap: var(--nv-sp-4);
  border-bottom: 1px solid var(--rule);
  font-family: var(--font-ui);
  font-size: 0.9rem;
  color: var(--nv-text);
}

.settings-row > span:first-child {
  color: var(--nv-text-dim);
}

.settings-row strong,
.settings-row input[type="text"] {
  justify-self: end;
  width: min(260px, 100%);
  font: inherit;
  color: var(--nv-text);
}

.settings-row input[type="text"] {
  min-height: 34px;
  padding: 0 var(--nv-sp-3);
  border: 1px solid var(--rule);
  border-radius: var(--nv-r-sm);
  background: var(--paper-alt);
}

.settings-row input[type="text"]:focus {
  border-color: var(--moss);
  outline: none;
}

/* "Coming soon" fields read as clearly inactive, never as silently broken. */
.settings-row input[type="text"]:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.settings-row--avatar {
  min-height: 72px;
}

.settings-avatar {
  justify-self: end;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--moss);
  color: var(--paper);
  font-family: var(--font-ui);
  font-weight: 600;
}

.settings-row--toggle input {
  justify-self: end;
  width: 42px;
  height: 22px;
  accent-color: var(--moss);
}

.settings-theme-card {
  display: flex;
  align-items: center;
  gap: var(--nv-sp-3);
  padding: var(--nv-sp-4);
  border: 1px solid var(--nv-divider);
  border-radius: var(--nv-r-md);
  background: var(--paper-alt);
  color: var(--nv-text);
  text-align: left;
  transition: border-color var(--nv-ease), background var(--nv-ease);
}

.settings-theme-card:hover,
.settings-theme-card:focus-visible,
.settings-theme-card.is-selected {
  border-color: var(--moss);
  background: var(--nv-tint-accent-low);
  outline: none;
}

.settings-respond__label {
  font-family: var(--font-ui);
  font-size: 0.88rem;
  font-weight: 500;
}

.settings-respond,
.settings-respond__grid {
  display: grid;
  gap: var(--nv-sp-3);
}

.settings-respond__loading {
  display: grid;
  place-items: center;
  min-height: 140px;
}

.settings-respond__card {
  align-items: flex-start;
  flex-direction: column;
}

.settings-respond__description,
.settings-respond__state,
.settings-respond__error,
.settings-account__label,
.settings-usage__line,
.settings-memory__intro,
.settings-memory__empty,
.settings-memory__error {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--nv-text-dim);
}

.settings-respond__state[data-state="error"] {
  color: var(--nv-text);
}

.settings-action {
  width: fit-content;
  min-height: 34px;
  padding: 0 var(--nv-sp-3);
  border-radius: var(--nv-r-sm);
  background: transparent;
  border: 1px solid var(--nv-divider);
  color: var(--nv-text-dim);
  font-family: var(--font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  transition: border-color var(--nv-ease), color var(--nv-ease);
}

.settings-action:hover,
.settings-action:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
  outline: none;
}

.settings-memory {
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-3);
}

.settings-memory__loading {
  display: grid;
  place-items: center;
  min-height: 360px;
}

.settings-memory__stage {
  position: relative;
  min-height: min(560px, 62dvh);
  border-radius: var(--nv-r-md);
  border: 1px solid var(--rule-strong);
  background: var(--paper-alt);
  padding: var(--nv-sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-3);
}

.settings-memory__view-toggle {
  display: flex;
  justify-content: flex-end;
  padding-bottom: var(--nv-sp-3);
  border-bottom: 1px solid var(--rule);
}

.settings-memory__views {
  min-height: 0;
  flex: 1;
  display: grid;
}

.settings-memory__list-wrap,
.settings-memory__canvas-wrap {
  min-height: 0;
  border-radius: var(--nv-r-sm);
  overflow: hidden;
  background: var(--paper-alt);
}

.settings-memory__canvas-wrap {
  position: relative;
}

.settings-memory__list {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--rule);
}

.settings-memory__list-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: var(--nv-sp-3) var(--nv-sp-4);
  border-top: 1px solid var(--rule);
}

.settings-memory__list-item:first-child {
  border-top: none;
}

.settings-memory__list-label {
  font-size: 0.84rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--nv-text);
}

.settings-memory__list-meta {
  font-size: 0.76rem;
  line-height: 1.5;
  color: var(--nv-text-dim);
}

.settings-memory__canvas {
  display: block;
  width: 100%;
  height: 480px;
  min-height: 100%;
}

.settings-memory__tooltip {
  position: absolute;
  max-width: 240px;
  padding: var(--nv-sp-2) var(--nv-sp-3);
  border-radius: var(--nv-r-sm);
  background: var(--paper);
  border: 1px solid var(--rule-strong);
  pointer-events: none;
  transform: translateY(-100%);
}

.settings-memory__tooltip strong,
.settings-memory__tooltip span {
  display: block;
}

.settings-memory__tooltip strong {
  font-size: 0.78rem;
  color: var(--nv-text);
  line-height: 1.5;
}

.settings-memory__tooltip span {
  font-size: 0.72rem;
  color: var(--nv-text-dim);
}

.account__row {
  display: flex;
  align-items: center;
  gap: var(--nv-sp-2);
}

.account__settings {
  width: 28px;
  height: 28px;
  margin-left: auto;
  display: grid;
  place-items: center;
  border: 1px solid var(--nv-divider);
  border-radius: var(--nv-r-sm);
  color: var(--nv-text-dim);
  transition: border-color var(--nv-ease), color var(--nv-ease);
}

.account__settings:hover,
.account__settings:focus-visible {
  border-color: var(--moss);
  color: var(--moss);
  outline: none;
}

@media (max-width: 780px) {
  .settings-overlay {
    padding: 0;
  }
  .settings-overlay__dialog {
    height: 100dvh;
    border-radius: 0;
    grid-template-columns: 1fr;
  }
  .settings-nav {
    border-right: 0;
    border-bottom: 1px solid var(--rule);
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }
  .settings-search {
    width: 100%;
    margin-bottom: var(--nv-sp-2);
  }
  .settings-nav__group {
    width: 100%;
  }
  .settings-row {
    grid-template-columns: 1fr;
    gap: var(--nv-sp-2);
    padding: var(--nv-sp-3) 0;
  }
  .settings-row strong,
  .settings-row input[type="text"],
  .settings-avatar,
  .settings-row--toggle input {
    justify-self: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  .settings-overlay,
  .settings-overlay__dialog,
  .settings-overlay__dismiss,
  .settings-theme-card,
  .settings-action,
  .account__settings {
    transition: none;
  }
}