/* Base & reset */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  position: relative;
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-family-ui);
  font-size: var(--font-size-base);
  line-height: var(--line-height-base);
  background-color: var(--color-bg);
  color: var(--color-text);
}

h1, h2, h3 {
  text-wrap: balance;
  line-height: var(--line-height-tight);
  color: var(--color-text);
  letter-spacing: var(--letter-spacing-tight);
}

h1 {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  margin-block: 0 var(--space-4);
}

h2 {
  font-size: var(--font-size-xl);
  font-weight: 650;
}

h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  letter-spacing: -0.01em;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--color-info);
}

a:hover {
  color: var(--color-info-hover);
}

:where(button, [type="button"], [type="submit"]) {
  font-family: inherit;
  cursor: pointer;
}

:where(input, textarea, select) {
  font-family: inherit;
  color: inherit;
  background-color: var(--color-surface);
}

*:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 2px;
}

/* Bootstrap focus-style override from earlier layout; kept for the few places
   where Bootstrap classes appear in vendored form UIs. */
.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem var(--color-surface), 0 0 0 0.25rem var(--color-focus-ring);
}

.form-floating > .form-control-plaintext::placeholder,
.form-floating > .form-control::placeholder {
  color: var(--color-text-subtle);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder,
.form-floating > .form-control:focus::placeholder {
  text-align: start;
}

/* Visually hidden, readable by screen readers. Used for singleton live regions. */
.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

/* Skip link — visible only when focused, keyboard-only users land here first. */
.skip-link {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link:focus-visible {
  position: fixed;
  inset-block-start: var(--space-3);
  inset-inline-start: var(--space-3);
  inline-size: auto;
  block-size: auto;
  padding: var(--space-2) var(--space-4);
  overflow: visible;
  clip-path: none;
  white-space: normal;
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 2px solid var(--color-focus-ring);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 999;
}

/* Shell */
.app-shell {
  min-height: 100vh;
  display: flex;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
  padding: var(--space-6) var(--space-4);
  border-inline-end: 1px solid var(--color-border);
  background-color: var(--color-surface-sunken);
  position: sticky;
  top: 0;
  height: 100vh;
}

.sidebar-brand {
  font-size: var(--font-size-xl);
  font-weight: 700;
  letter-spacing: var(--letter-spacing-tight);
  color: var(--color-text);
  text-decoration: none;
  background: linear-gradient(135deg, var(--color-accent), var(--color-info));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.sidebar-brand:hover {
  opacity: 0.88;
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sidebar-group {
  display: grid;
  gap: var(--space-1);
}

.sidebar-group-header {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.sidebar-link {
  display: block;
  flex: 1;
  padding: 0.6rem var(--space-3);
  border-radius: var(--radius-md);
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: background-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease);
}

.sidebar-link:hover {
  background-color: var(--color-surface-raised);
  color: var(--color-text);
}

.sidebar-link.active {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-soft-fg);
  font-weight: 600;
}

.sidebar-subnav {
  display: grid;
  gap: var(--space-1);
  margin-inline-start: 0.65rem;
  padding-inline-start: var(--space-2);
  border-inline-start: 2px solid var(--color-border);
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--motion-standard) var(--motion-ease),
              opacity var(--motion-fast) var(--motion-ease);
}

.sidebar-subnav.expanded {
  max-height: 14rem;
  opacity: 1;
}

.sidebar-group-toggle {
  /* WCAG 2.5.8 Target Size (Minimum): interactive targets ≥ 24×24 CSS px. */
  min-width: 1.5rem;
  min-height: 1.5rem;
  border: none;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 0;
}

.sidebar-group-chevron {
  display: inline-block;
  transition: transform var(--motion-fast) var(--motion-ease);
}

.sidebar-group-toggle[aria-expanded="false"] .sidebar-group-chevron {
  transform: rotate(-90deg);
}

.sidebar-sublink {
  display: block;
  padding: 0.45rem 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.sidebar-sublink:hover {
  background-color: var(--color-surface-raised);
  color: var(--color-text);
}

.sidebar-sublink.active {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-soft-fg);
  font-weight: 600;
}

.content-area {
  flex: 1;
  padding: var(--space-8);
}

.topbar {
  margin-bottom: var(--space-5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  padding: var(--space-3) var(--space-4);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  box-shadow: var(--shadow-sm);
}

.topbar-language {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-caption {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.lang-button {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-raised);
  color: var(--color-text);
  padding: 0.35rem 0.8rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  min-height: var(--control-min-size);
}

.lang-button {
  transition: background-color var(--motion-fast) var(--motion-ease),
              border-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease);
}

.lang-button:hover {
  border-color: var(--color-accent-border);
  color: var(--color-text);
}

.lang-button.active {
  border-color: var(--color-accent-border);
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
  box-shadow: var(--shadow-accent);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.topbar-link {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background-color: var(--color-surface-raised);
  color: var(--color-text-muted);
  padding: 0.4rem 0.75rem;
  font-size: var(--font-size-sm);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  min-height: var(--control-min-size);
}

.topbar-link:hover {
  color: var(--color-text);
  background-color: var(--color-surface-muted);
}

.theme-button {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-raised);
  color: var(--color-text-muted);
  padding: 0.35rem 0.8rem;
  font-size: var(--font-size-sm);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  min-height: var(--control-min-size);
}

.theme-button:hover {
  color: var(--color-text);
  background-color: var(--color-surface-muted);
  border-color: var(--color-border-strong);
}

.topbar-user {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.role-pill {
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-muted);
  color: var(--color-text);
  font-size: var(--font-size-xs);
  font-weight: 700;
  padding: 0.1rem 0.45rem;
}

.logout-form {
  margin: 0;
}

.page-section {
  position: relative;
  width: 100%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

/* Gradient top-accent — reads the brand language without borrowing chrome. */
.page-section::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 2px;
  background: linear-gradient(90deg,
    color-mix(in oklch, var(--color-accent) 90%, transparent) 0%,
    color-mix(in oklch, var(--color-info) 60%, transparent) 45%,
    transparent 75%);
  pointer-events: none;
}

.lead-text {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  max-inline-size: var(--measure-prose);
  margin-block: 0 var(--space-5);
}

.builder-link {
  display: inline-block;
  margin-top: var(--space-4);
  padding: 0.55rem 0.8rem;
  border-radius: var(--radius-md);
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
  text-decoration: none;
  min-height: var(--control-min-size);
}

.builder-link:hover {
  background-color: var(--color-accent-hover);
  color: var(--color-text-on-accent);
}

.tool-grid {
  margin-top: var(--space-4);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-3);
}

.tool-card {
  position: relative;
  display: block;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background-color: var(--color-surface-raised);
  padding: var(--space-5);
  text-decoration: none;
  color: var(--color-text);
  transition: background-color var(--motion-standard) var(--motion-ease),
              border-color var(--motion-standard) var(--motion-ease),
              box-shadow var(--motion-standard) var(--motion-ease),
              transform var(--motion-standard) var(--motion-ease);
}

.tool-card:hover {
  background-color: var(--color-surface);
  border-color: var(--color-accent-border);
  transform: translateY(-3px);
  box-shadow: var(--shadow-accent);
}

.tool-card:focus-visible {
  border-color: var(--color-accent-border);
  box-shadow: var(--shadow-accent);
  outline: none;
}

.tool-card h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--font-size-lg);
  letter-spacing: -0.01em;
}

.tool-card p {
  margin: 0;
  color: var(--color-text-muted);
  line-height: var(--line-height-base);
}

/* Builder forms */
.builder-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.builder-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
}

.builder-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 600;
}

.builder-grid input,
.builder-grid textarea,
.builder-grid select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.85rem;
  font: inherit;
  color: var(--color-text);
  background-color: var(--color-surface);
  transition: border-color var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease);
}

.builder-grid input:hover,
.builder-grid textarea:hover,
.builder-grid select:hover {
  border-color: var(--color-border-strong);
}

.builder-grid input:focus-visible,
.builder-grid textarea:focus-visible,
.builder-grid select:focus-visible {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in oklch, var(--color-accent) 25%, transparent);
}

.builder-checklist {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  display: grid;
  gap: 0.45rem;
}

.builder-checklist legend {
  width: auto;
  padding: 0 0.3rem;
  font-size: var(--font-size-base);
  font-weight: 700;
}

.builder-checklist label {
  display: flex;
  gap: 0.55rem;
  align-items: center;
  font-weight: 500;
}

.builder-button {
  align-self: flex-start;
  border: none;
  border-radius: var(--radius-md);
  background-color: var(--color-accent);
  color: var(--color-text-on-accent);
  font-weight: 600;
  letter-spacing: -0.005em;
  padding: 0.7rem 1.15rem;
  min-height: 2.5rem;
  box-shadow: var(--shadow-accent), inset 0 1px 0 color-mix(in oklch, white 18%, transparent);
  transition: background-color var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-standard) var(--motion-ease),
              transform var(--motion-fast) var(--motion-ease);
}

.builder-button:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 12px 28px color-mix(in oklch, oklch(55% 0.22 290) 38%, transparent),
              inset 0 1px 0 color-mix(in oklch, white 20%, transparent);
}

.builder-button:active:not(:disabled) {
  transform: translateY(0);
}

.builder-button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  box-shadow: none;
}

.builder-error {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background-color: var(--color-danger-soft);
  color: var(--color-danger-soft-fg);
  border: 1px solid color-mix(in oklch, var(--color-danger) 40%, transparent);
  box-shadow: 0 4px 12px color-mix(in oklch, var(--color-danger) 10%, transparent);
  font-weight: 500;
}

/* Generation progress row (indeterminate bar + elapsed timer + Cancel). */
.generation-progress {
  margin-top: var(--space-3);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.generation-progress__bar {
  block-size: 0.4rem;
  inline-size: 100%;
  background-color: var(--color-surface-muted);
  border-radius: var(--radius-pill);
  overflow: hidden;
  position: relative;
}

.generation-progress__bar > span {
  display: block;
  block-size: 100%;
  inline-size: 35%;
  background-color: var(--color-accent);
  border-radius: inherit;
  animation: generation-progress-slide 1.4s var(--motion-ease) infinite;
}

@keyframes generation-progress-slide {
  0%   { transform: translateX(-110%); }
  100% { transform: translateX(320%); }
}

.generation-progress__info {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.generation-progress__elapsed {
  font-variant-numeric: tabular-nums;
  color: var(--color-text-subtle);
}

.generation-progress__cancel {
  margin-inline-start: auto;
  min-height: var(--control-min-size);
  padding: 0.35rem 0.8rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease),
              border-color var(--motion-fast) var(--motion-ease);
}

.generation-progress__cancel:hover {
  background-color: var(--color-surface-muted);
  color: var(--color-text);
  border-color: var(--color-danger);
}

@media (prefers-reduced-motion: reduce) {
  .generation-progress__bar > span {
    animation: none;
    inline-size: 100%;
    opacity: 0.65;
  }
}

/* Result action toolbar — Copy / Export / Regenerate. */
.result-actions-host {
  margin-bottom: var(--space-3);
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.result-actions__btn {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  min-height: var(--control-min-size);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-text);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease),
              border-color var(--motion-fast) var(--motion-ease);
}

.result-actions__btn:hover {
  background-color: var(--color-surface-muted);
  border-color: var(--color-accent-border);
}

.result-actions__btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.result-actions__btn.is-success {
  background-color: var(--color-accent-soft);
  color: var(--color-accent-soft-fg);
  border-color: var(--color-accent-border);
}

.result-actions__btn.is-error {
  background-color: var(--color-danger-soft);
  color: var(--color-danger-soft-fg);
  border-color: var(--color-danger);
}

/* Live region only renders while it holds text. Avoids stale focus target. */
.builder-error:empty {
  display: none;
}

.builder-result {
  position: relative;
  margin-top: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  background-color: var(--color-surface-raised);
  box-shadow: var(--shadow-ring);
}

.builder-result::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  block-size: 2px;
  background: linear-gradient(90deg,
    color-mix(in oklch, var(--color-accent) 85%, transparent) 0%,
    transparent 60%);
  border-start-start-radius: var(--radius-lg);
  border-start-end-radius: var(--radius-lg);
  pointer-events: none;
}

.result-stats,
.adversary-card__stats {
  margin: var(--space-4) 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.5rem 0.75rem;
}

.result-stats dt,
.adversary-card__stats dt {
  font-weight: 700;
}

.result-stats dd,
.adversary-card__stats dd {
  margin: 0;
}

.encounter-adversaries {
  display: grid;
  gap: var(--space-3);
}

/* Cards */
.adversary-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface);
  padding: var(--space-3) var(--space-4);
}

.adversary-card--panel {
  background-color: var(--color-surface-raised);
}

.adversary-card__header {
  margin-bottom: var(--space-3);
}

.adversary-card__title {
  margin: 0 0 0.4rem;
}

.adversary-card__description {
  margin: 0;
  color: var(--color-text-muted);
}

.adversary-card__meta {
  margin: 0.5rem 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.adversary-card__section {
  margin-top: 0.8rem;
}

.adversary-card__section-title {
  margin: 0 0 0.35rem;
  font-size: var(--font-size-base);
}

.adversary-card__list {
  margin: 0;
  padding-inline-start: 1.1rem;
}

.adversary-card--selectable {
  cursor: pointer;
}

.library-layout {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(320px, 1.4fr);
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.library-empty {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border: 1px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  background-color: var(--color-surface-raised);
}

.library-empty .lead-text {
  margin: 0;
}

/* Native <dialog> used as a modal confirm. showModal() takes focus-trap + inert
   for us; ESC closes by default. Backdrop click does not close (per spec). */
.confirm-dialog {
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
  max-inline-size: min(30rem, 90vw);
}

.confirm-dialog::backdrop {
  background-color: oklch(0% 0 0 / 0.45);
  backdrop-filter: blur(3px);
}

.confirm-dialog__title {
  margin: 0 0 var(--space-2);
}

.confirm-dialog__body {
  margin: 0;
  color: var(--color-text-muted);
}

.confirm-dialog__actions {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
  margin-top: var(--space-4);
}

@media (prefers-reduced-motion: no-preference) {
  .confirm-dialog[open] {
    animation: confirm-dialog-in var(--motion-standard) var(--motion-ease);
  }
  .confirm-dialog[open]::backdrop {
    animation: confirm-backdrop-in var(--motion-standard) var(--motion-ease);
  }
}

@keyframes confirm-dialog-in {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

@keyframes confirm-backdrop-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* Performance — virtualize off-screen cards via content-visibility.
   Baseline Widely Available (Chrome 85+, Safari 18+, Firefox 125+).
   Browser skips paint/layout for items off-screen and stores the last
   rendered size via contain-intrinsic-block-size: auto to avoid CLS. */
.library-card,
.encounter-adversaries > * {
  content-visibility: auto;
  contain-intrinsic-block-size: auto 320px;
}

/* Layout containment on isolated card-like components so paint/layout
   work stays local and does not invalidate neighbours. */
.tool-card,
.adversary-card,
.adversary-card__block,
.environment-card__block {
  contain: layout paint style;
}

.library-card {
  transition: border-color var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease);
}

.library-card.is-selected {
  border-color: var(--color-accent-border);
  box-shadow: 0 0 0 2px color-mix(in oklch, var(--color-accent) 20%, transparent);
}

.builder-button.danger {
  background-color: var(--color-danger);
  color: var(--color-text-on-danger);
}

.builder-button.danger:hover {
  background-color: var(--color-danger-hover);
}

@media (max-width: 860px) {
  .app-shell {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    position: static;
    height: auto;
    border-inline-end: none;
    border-block-end: 1px solid var(--color-border);
  }

  .content-area {
    padding: var(--space-4);
  }

  .topbar {
    padding: 0.65rem 0.75rem;
    flex-wrap: wrap;
  }

  .library-layout {
    grid-template-columns: 1fr;
  }
}

/* Per-block regenerate controls (adversary) */
.adversary-card__block {
  position: relative;
  padding: 0.25rem 0.35rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  transition: border-color var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease),
              background-color var(--motion-fast) var(--motion-ease);
}

.adversary-card__block--regeneratable:hover,
.adversary-card__block--regeneratable:focus-within {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
  background-color: var(--color-surface-raised);
}

.adversary-card__toolbar {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  display: flex;
  gap: 0.25rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-fast) var(--motion-ease);
}

.adversary-card__block--regeneratable:hover .adversary-card__toolbar,
.adversary-card__block--regeneratable:focus-within .adversary-card__toolbar {
  opacity: 1;
  pointer-events: auto;
}

.adversary-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease),
              border-color var(--motion-fast) var(--motion-ease);
}

.adversary-card__btn:hover {
  background-color: var(--color-surface-muted);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.adversary-card__btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 1px;
}

.adversary-card__btn--submit,
.adversary-card__btn--cancel {
  width: auto;
  padding: 0 0.7rem;
  font-size: var(--font-size-sm);
}

.adversary-card__btn--submit {
  background-color: var(--color-info);
  border-color: var(--color-info-hover);
  color: var(--color-text-on-accent);
}

.adversary-card__btn--submit:hover {
  background-color: var(--color-info-hover);
  color: var(--color-text-on-accent);
}

.adversary-card__hint-panel {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-info-soft);
  border: 1px solid var(--color-border-strong);
}

.adversary-card__hint-input {
  flex: 1 1 auto;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-strong);
  font-size: var(--font-size-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.adversary-card__hint-input:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 0;
  border-color: var(--color-focus-ring);
}

.adversary-card__block--loading {
  pointer-events: none;
  opacity: 0.85;
}

.adversary-card__loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-overlay);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  pointer-events: none;
}

.adversary-card__error {
  margin-top: 0.5rem;
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-danger-soft);
  color: var(--color-danger-soft-fg);
  font-size: var(--font-size-sm);
}

.adversary-card__experience {
  margin: 0.5rem 0 0;
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Per-block regenerate controls (environment) — block-only, no hover overlay. */
.environment-card__block {
  position: relative;
  padding: 0.5rem 0.6rem;
  margin-bottom: 0.6rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-subtle);
  background-color: var(--color-surface);
  transition: border-color var(--motion-fast) var(--motion-ease),
              box-shadow var(--motion-fast) var(--motion-ease);
}

.environment-card__block--regeneratable:hover,
.environment-card__block--regeneratable:focus-within {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-md);
}

.environment-card__toolbar {
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  display: flex;
  gap: 0.25rem;
}

.environment-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0.3rem 0.6rem;
  min-height: var(--control-min-size);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-strong);
  background-color: var(--color-surface);
  color: var(--color-text-muted);
  font-size: var(--font-size-xs);
  cursor: pointer;
  transition: background-color var(--motion-fast) var(--motion-ease),
              color var(--motion-fast) var(--motion-ease),
              border-color var(--motion-fast) var(--motion-ease);
}

.environment-card__btn:hover {
  background-color: var(--color-surface-muted);
  color: var(--color-text);
  border-color: var(--color-border-strong);
}

.environment-card__btn:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 1px;
}

.environment-card__btn--submit {
  background-color: var(--color-info);
  border-color: var(--color-info-hover);
  color: var(--color-text-on-accent);
}

.environment-card__btn--submit:hover {
  background-color: var(--color-info-hover);
  color: var(--color-text-on-accent);
}

.environment-card__hint-panel {
  display: flex;
  gap: 0.4rem;
  margin-top: 0.5rem;
  padding: 0.4rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-info-soft);
  border: 1px solid var(--color-border-strong);
}

.environment-card__hint-input {
  flex: 1 1 auto;
  padding: 0.35rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--color-border-strong);
  font-size: var(--font-size-sm);
  background-color: var(--color-surface);
  color: var(--color-text);
}

.environment-card__hint-input:focus-visible {
  outline: 2px solid var(--color-focus-ring);
  outline-offset: 0;
  border-color: var(--color-focus-ring);
}

.environment-card__block--loading {
  pointer-events: none;
  opacity: 0.85;
}

.environment-card__loading-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-overlay);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
}

.environment-card__error {
  margin-top: 0.5rem;
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-sm);
  background-color: var(--color-danger-soft);
  color: var(--color-danger-soft-fg);
  font-size: var(--font-size-sm);
}

/* Reduced motion: kill non-essential transitions & animations. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }

  .sidebar-subnav {
    transition: none;
  }

  .tool-card:hover {
    transform: none;
  }
}

/* Forced-colors (Windows High Contrast, forced palettes) — fall back to system colors.
   Role-based tokens become meaningless here; rely on the UA. */
@media (forced-colors: active) {
  .page-section,
  .topbar,
  .sidebar,
  .tool-card,
  .adversary-card,
  .builder-result,
  .environment-card__block {
    border-color: CanvasText;
  }

  .builder-button,
  .builder-link,
  .adversary-card__btn--submit,
  .environment-card__btn--submit {
    forced-color-adjust: none;
    background-color: ButtonFace;
    color: ButtonText;
    border: 1px solid ButtonText;
  }

  *:focus-visible {
    outline-color: Highlight;
  }
}