.why-overlay {
  background: var(--nv-surface);
  transition: transform var(--nv-ease);
}

.why-overlay__head {
  min-height: 52px;
  padding: var(--nv-sp-3) var(--nv-sp-4);
  border-bottom: 3px double var(--rule-strong);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--nv-sp-3);
}

.why-overlay__title {
  font-family: var(--nv-font-display);
  font-size: 18px;
  color: var(--nv-text);
}

.why-overlay__dismiss {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border: 1px solid var(--nv-divider);
  border-radius: var(--nv-r-sm);
  color: var(--nv-text-muted);
  font-size: 18px;
  line-height: 1;
  transition: border-color var(--nv-ease), color var(--nv-ease), box-shadow var(--nv-ease);
}

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

.why-overlay__body {
  padding: var(--nv-sp-6) var(--nv-sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-4);
}

.why-overlay__body p {
  margin: 0;
}

.why-overlay__driver {
  font-family: var(--nv-font-display);
  font-size: 20px;
  line-height: 1.3;
  color: var(--nv-text);
}

.why-overlay__explanation,
.why-overlay__memory,
.why-overlay__selected,
.why-overlay__tradeoff {
  font-size: 13px;
  line-height: 1.65;
  color: var(--nv-text-dim);
}

.why-overlay__selected {
  overflow-wrap: anywhere;
}

.why-overlay__memory,
.why-overlay__highlight {
  padding: var(--nv-sp-2);
  border-radius: var(--nv-r-sm);
}

.why-overlay__memory {
  background: var(--nv-tint-paper);
}

.why-overlay__highlight {
  background: var(--nv-tint-accent-low);
  border-left: 2px solid var(--ochre);
}

.why-overlay__confidence {
  width: fit-content;
  padding: var(--nv-sp-1) var(--nv-sp-2);
  border-radius: var(--nv-r-sm);
  background: transparent;
  border: 1px solid var(--rule-strong);
  color: var(--ochre-ink);
  font-family: var(--font-ui);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.why-overlay__tradeoff {
  padding-top: var(--nv-sp-4);
  border-top: 1px solid var(--nv-divider);
}

/* Selection path: collapsed full-reasoning section and its toggle */
.why-overlay__disclose {
  width: fit-content;
  padding: 0;
  color: var(--moss);
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 600;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--nv-ease);
}

.why-overlay__disclose:hover,
.why-overlay__disclose:focus-visible {
  color: var(--moss-deep);
}

.why-overlay__full {
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-4);
  padding-top: var(--nv-sp-4);
  border-top: 1px solid var(--nv-divider);
}

.why-overlay__full[hidden] {
  display: none;
}

.why-overlay__action,
.why-overlay__back {
  width: fit-content;
  border: 1px solid var(--nv-divider);
  border-radius: var(--nv-r-sm);
  padding: var(--nv-sp-2) var(--nv-sp-3);
  color: var(--nv-text-dim);
  font-family: var(--font-ui);
  font-size: 0.76rem;
  font-weight: 600;
}

.why-overlay__action--accent,
.why-overlay__action:hover,
.why-overlay__back:hover {
  border-color: transparent;
  background: var(--moss);
  color: var(--paper);
}

.why-overlay__textarea {
  min-height: 120px;
  resize: vertical;
  border: 1px solid var(--nv-divider);
  border-radius: var(--nv-r-sm);
  padding: var(--nv-sp-3);
  font: inherit;
  color: var(--nv-text);
}

.why-overlay__status {
  min-height: 18px;
  font-size: 12px;
  color: var(--nv-text-muted);
}

.why-overlay__affected,
.why-overlay__actions {
  display: flex;
  flex-direction: column;
  gap: var(--nv-sp-2);
}

.why-overlay__check {
  display: flex;
  align-items: flex-start;
  gap: var(--nv-sp-2);
  font-size: 12px;
  line-height: 1.5;
  color: var(--nv-text-dim);
}

@media (prefers-reduced-motion: reduce) {
  .why-overlay,
  .why-overlay__dismiss {
    transition: none;
  }
}