:root {
  color-scheme: light;
  /* Saltech brochure palette */
  --background: #f5f8ff;
  --surface: #fdfeff;
  --surface-muted: #eef2f7;
  --border: #d5e0ee;
  --text: #123859;
  --muted: #4a5f78;
  --accent: #133960;
  --accent-strong: #0b2440;
  --brand-blue: #3ba4ff;
  --brand-blue-text: #1a6fc4;
  --brand-blue-bg: #e8f3ff;
  --navy-ink: #0e2a47;
  --heading-font: "Montserrat", Arial, sans-serif;
  --danger: #9f2f32;
  --danger-bg: #fae7e8;
  --success: #236a3a;
  --success-bg: #e2f3e8;
  font-family: "Open Sans", Arial, ui-sans-serif, system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background: var(--background);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  border: 1px solid var(--accent);
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  min-height: 40px;
  border-radius: 6px;
  padding: 0 14px;
  font-weight: 650;
}

button:hover:not(:disabled) {
  background: var(--accent-strong);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.app-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 24px;
}

.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.game-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 8px;
}

.config-summary {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  padding: 7px 11px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.player-label {
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

.segmented-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.setup-field .segmented-actions button {
  flex: 1 1 0;
  min-width: 0;
}

.difficulty-control {
  display: inline-flex;
  align-items: stretch;
  gap: 8px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-family: var(--heading-font);
  font-size: 30px;
  line-height: 1.1;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--accent);
}

h2 {
  font-family: var(--heading-font);
  font-size: 13px;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

h3 {
  font-family: var(--heading-font);
  font-size: 12px;
  line-height: 1.2;
  margin-bottom: 10px;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 20px;
}

.brand-logo {
  height: 52px;
  width: auto;
  padding-right: 20px;
  border-right: 1px solid var(--border);
}

.demo-cta-panel .confirm-guess-button {
  border-color: var(--brand-blue);
  background: var(--brand-blue);
  color: var(--navy-ink);
}

.demo-cta-panel .confirm-guess-button:hover:not(:disabled) {
  border-color: #2f93ea;
  background: #2f93ea;
}

.status-text {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.secondary-button {
  background: var(--surface);
  color: var(--accent);
}

.secondary-button:hover:not(:disabled) {
  background: #eaf4f2;
}

.secondary-button.active,
.secondary-button.active:hover:not(:disabled) {
  background: var(--accent);
  color: #ffffff;
}

.icon-button {
  min-width: 44px;
}

.link-button,
.admin-link {
  min-height: 0;
  border: 0;
  background: transparent;
  color: var(--accent);
  padding: 0;
  font-size: 13px;
  font-weight: 720;
  text-decoration: none;
}

.link-button:hover:not(:disabled),
.admin-link:hover {
  background: transparent;
  color: var(--accent-strong);
  text-decoration: underline;
}

.danger-button {
  border-color: var(--danger);
  background: var(--danger);
  color: #ffffff;
}

.danger-button:hover:not(:disabled) {
  background: #7f2528;
}

.compact-button {
  min-height: 32px;
  padding: 0 10px;
  font-size: 13px;
}

.registration-panel {
  display: grid;
  place-items: start center;
  padding-top: 48px;
}

.registration-form {
  width: min(420px, 100%);
  display: grid;
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 18px;
}

.registration-form label {
  font-size: 14px;
  font-weight: 720;
}

.registration-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.login-code-field {
  display: grid;
  gap: 8px;
}

.form-hint {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.link-button {
  justify-self: start;
  padding: 0;
  border: none;
  background: none;
  color: var(--brand-blue-text);
  font-size: 14px;
  text-decoration: underline;
  cursor: pointer;
}

.form-error {
  min-height: 20px;
  color: var(--danger);
  font-size: 14px;
  line-height: 1.4;
}

.setup-dialog {
  width: min(380px, calc(100vw - 28px));
  max-height: calc(100vh - 28px);
  margin: auto 14px auto auto;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 0;
  box-shadow: 0 20px 70px rgba(23, 32, 42, 0.22);
}

.setup-dialog::backdrop {
  background: rgba(23, 32, 42, 0.22);
}

.setup-form {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.setup-field {
  display: grid;
  gap: 8px;
}

.setup-label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 760;
}

.setup-note {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.35;
}

.setup-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr);
  gap: 8px;
}

.setup-actions button {
  min-width: 0;
  white-space: normal;
}

.play-surface {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  align-items: start;
}

.boards-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 18px;
}

.play-surface.player-vs-ai .boards-shell {
  grid-template-columns: minmax(0, 1fr);
}

.play-surface.demo-mode {
  grid-template-columns: minmax(0, 1fr) 320px;
}

.play-surface.demo-mode .candidate-card {
  cursor: default;
}

.demo-cta-panel p {
  color: var(--muted);
  line-height: 1.4;
}

.ai-turn-card {
  display: grid;
  gap: 10px;
}

.ai-turn-question {
  display: block;
  color: var(--text);
  font-size: 15px;
  line-height: 1.35;
  font-weight: 720;
}

.ai-turn-meta {
  display: grid;
  grid-template-columns: auto minmax(44px, auto);
  align-items: center;
  justify-content: start;
  gap: 8px 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.answer-pill,
.remaining-count {
  justify-self: start;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 760;
}

.answer-pill.yes {
  background: var(--success-bg);
  color: var(--success);
}

.answer-pill.no {
  background: var(--danger-bg);
  color: var(--danger);
}

.remaining-count {
  background: var(--surface-muted);
  color: var(--text);
}

.board-panel {
  min-width: 0;
}

.board-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.board-header h2 {
  margin-bottom: 0;
}

.board-count {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.panel-header h2 {
  margin-bottom: 0;
}

.candidate-board {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
}

.candidate-card {
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  padding: 10px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.candidate-card:disabled {
  opacity: 1;
}

.candidate-card:hover:not(:disabled) {
  border-color: var(--accent);
  background: var(--brand-blue-bg);
}

.candidate-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(59, 164, 255, 0.35);
}

.candidate-card.eliminated {
  background: var(--surface-muted);
  color: var(--muted);
}

.candidate-card.eliminated .candidate-name {
  text-decoration: line-through;
}

.candidate-card.eliminated .candidate-image,
.candidate-card.eliminated .candidate-image-fallback {
  filter: grayscale(1);
  opacity: 0.42;
}

.candidate-card.concluded {
  cursor: default;
}

.candidate-card.readonly {
  cursor: default;
}

.candidate-card.readonly:hover:not(:disabled) {
  border-color: var(--border);
  background: var(--surface);
}

.candidate-name {
  font-size: 15px;
  line-height: 1.2;
  font-weight: 760;
}

.candidate-image,
.candidate-image-fallback {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
}

.candidate-image {
  object-fit: cover;
}

.candidate-image-fallback {
  display: grid;
  place-items: center;
  padding: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.25;
  text-align: center;
}

.candidate-state {
  display: inline-flex;
  align-self: flex-start;
  border-radius: 999px;
  padding: 2px 8px;
  background: var(--success-bg);
  color: var(--success);
  font-size: 12px;
  font-weight: 700;
}

.candidate-card.eliminated .candidate-state {
  background: var(--danger-bg);
  color: var(--danger);
}

.candidate-state.out {
  background: var(--danger-bg);
  color: var(--danger);
}

.attribute-list {
  display: grid;
  gap: 3px;
  font-size: 12px;
  line-height: 1.25;
  color: inherit;
}

.attribute-row {
  display: grid;
  grid-template-columns: 82px minmax(0, 1fr);
  gap: 6px;
}

.attribute-key {
  color: var(--muted);
}

.attribute-value {
  overflow-wrap: anywhere;
}

.side-panel {
  display: grid;
  gap: 12px;
}

.question-form,
.result-panel,
.series-panel,
.selected-panel,
.history-panel,
.audit-panel,
.ai-board-panel,
.admin-stat,
.admin-table-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 14px;
}

.ai-board-panel {
  padding: 12px;
}

.ai-board-panel .board-header {
  margin-bottom: 8px;
}

.ai-board {
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 4px;
}

.ai-board .candidate-card {
  min-height: 0;
  padding: 0;
  gap: 0;
  overflow: hidden;
  border-radius: 6px;
}

.ai-board .candidate-image,
.ai-board .candidate-image-fallback {
  aspect-ratio: 1;
  border: 0;
  border-radius: 0;
}

.ai-board .candidate-name,
.ai-board .candidate-state {
  display: none;
}

.question-form label {
  display: block;
  margin-bottom: 8px;
  font-size: 14px;
  font-weight: 720;
}

.question-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
}

input {
  min-width: 0;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 10px;
  color: var(--text);
  background: #ffffff;
}

select {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 8px;
  color: var(--text);
  background: #ffffff;
}

input:focus,
select:focus,
button:focus-visible {
  outline: 2px solid rgba(59, 164, 255, 0.4);
  border-color: var(--accent);
}

#resultText {
  color: var(--muted);
  line-height: 1.4;
}

.series-summary {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

#timerText {
  color: var(--accent);
  font-size: 24px;
  line-height: 1;
  font-weight: 760;
}

.selected-candidate-empty {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}

.selected-candidate-details {
  display: grid;
  gap: 12px;
}

.selected-guess-details {
  display: grid;
  gap: 10px;
}

.selected-candidate-image,
.selected-candidate-details .candidate-image-fallback {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
}

.selected-candidate-image {
  object-fit: cover;
}

.selected-candidate-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.selected-candidate-name {
  min-width: 0;
  font-size: 17px;
  line-height: 1.2;
  font-weight: 760;
}

.confirm-guess-button {
  width: 100%;
}

.debug-hud {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 29;
  width: min(420px, calc(100vw - 40px));
  max-height: min(680px, calc(100vh - 104px));
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 14px;
  box-shadow: 0 20px 70px rgba(23, 32, 42, 0.24);
}

.debug-hud-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.debug-hud-header h2 {
  margin-bottom: 0;
}

.debug-hud-section {
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.debug-candidate-details {
  min-height: 0;
  overflow: auto;
  display: grid;
  gap: 12px;
  padding-right: 2px;
}

.debug-candidate-details .selected-candidate-image,
.debug-candidate-details .candidate-image-fallback {
  width: min(180px, 100%);
}

ol {
  margin: 0;
  padding-left: 22px;
}

li {
  margin: 7px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.35;
}

.empty-list {
  list-style: none;
  margin-left: -22px;
}

.admin-dashboard {
  display: grid;
  gap: 18px;
}

.admin-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.admin-stat {
  display: grid;
  gap: 6px;
}

.admin-stat span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

.admin-stat strong {
  font-size: 20px;
  line-height: 1.2;
}

.table-scroll {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 960px;
}

.admin-table th,
.admin-table td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: middle;
  font-size: 14px;
}

.admin-table th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.table-actions {
  display: flex;
  gap: 8px;
}

.visibility-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-size: 13px;
  font-weight: 650;
  white-space: nowrap;
}

.visibility-toggle input {
  min-width: 18px;
  width: 18px;
  min-height: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--accent);
}

.admin-player-hidden {
  background: var(--surface-muted);
}

.admin-player-hidden td {
  color: var(--muted);
}

@media (max-width: 980px) {
  .play-surface {
    grid-template-columns: 1fr;
  }

  .side-panel {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .question-form {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .app-shell {
    padding: 14px;
  }

  .top-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .game-actions {
    justify-content: stretch;
  }

  .config-summary,
  .player-label {
    flex: 1 1 100%;
  }

  .game-actions button {
    flex: 1 1 auto;
  }

  .candidate-board {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .play-surface.player-vs-ai .boards-shell {
    grid-template-columns: 1fr;
  }

  .play-surface.demo-mode {
    grid-template-columns: 1fr;
  }

  .ai-board {
    grid-template-columns: repeat(8, minmax(0, 1fr));
  }

  .side-panel {
    grid-template-columns: 1fr;
  }

  .debug-hud-toggle {
    right: 14px;
    bottom: 14px;
  }

  .debug-hud {
    right: 14px;
    bottom: 68px;
    width: calc(100vw - 28px);
    max-height: min(620px, calc(100vh - 82px));
  }

  .admin-stat-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 460px) {
  .candidate-board {
    grid-template-columns: 1fr;
  }

  .ai-board {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .question-row {
    grid-template-columns: 1fr;
  }

  .setup-actions {
    grid-template-columns: 1fr;
  }
}

/* Booth attract loop: the deck's own 1920x1080 slides, scaled to fit the screen */
body.attract-slides-active .top-bar {
  display: none;
}

.attract-stage {
  position: fixed;
  inset: 0;
  z-index: 10;
  overflow: hidden;
  background: #0b2440;
}

.attract-hint-bar {
  position: absolute;
  left: 50%;
  bottom: 14px;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(11, 36, 64, 0.72);
  color: #f4f7fc;
  font-family: "Montserrat", Arial, sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.attract-progress {
  display: flex;
  gap: 6px;
}

.attract-progress span {
  width: 20px;
  height: 5px;
  border-radius: 3px;
  background: rgba(244, 247, 252, 0.35);
}

.attract-progress span.active {
  background: #3ba4ff;
}

/* Slide canvas: defaults of the deck's slide format, scoped so the app's own element styles
   (h2/h3/li sizes, margins, colours) don't leak into the slides. */
.deck-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 1920px;
  height: 1080px;
  transform-origin: 0 0;
}

.deck-canvas section {
  position: relative;
  width: 1920px;
  height: 1080px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.deck-canvas section * {
  margin: 0;
}

.deck-canvas div {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.deck-canvas h1,
.deck-canvas h2,
.deck-canvas h3 {
  color: inherit;
  text-transform: none;
  font-weight: 600;
}

.deck-canvas h1 {
  font-size: 96px;
  line-height: 1.1;
}

.deck-canvas h2 {
  font-size: 64px;
  line-height: 1.15;
}

.deck-canvas h3 {
  font-size: 44px;
  line-height: 1.2;
}

.deck-canvas p {
  font-size: 32px;
  line-height: 1.4;
}

.deck-canvas ul,
.deck-canvas ol {
  padding-left: 1.2em;
}

.deck-canvas li {
  color: inherit;
  font-size: inherit;
  line-height: inherit;
}

.deck-canvas img,
.deck-canvas svg,
.deck-canvas x-shape {
  display: block;
  flex: none;
}

.deck-canvas x-shape[kind="arrow-right"] {
  clip-path: polygon(0 30%, 60% 30%, 60% 0, 100% 50%, 60% 100%, 60% 70%, 0 70%);
}

.deck-canvas .deck-icon {
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* A deck build step that hasn't played yet (see revealBuildStep). */
.deck-canvas .deck-build-pending {
  opacity: 0;
}

.deck-connector {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
}

.play-surface.demo-mode .question-form input:disabled {
  opacity: 1;
  color: var(--text);
}

/* AI -> structured query -> rules trace */
.trace-panel {
  --ai: var(--brand-blue-text);
  --ai-bg: var(--brand-blue-bg);
  display: grid;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  padding: 14px;
}

.trace-empty {
  margin: 0;
  color: var(--muted);
}

.trace-row {
  position: relative;
  display: grid;
  gap: 4px;
  padding: 10px 12px;
  border-radius: 6px;
  border-left: 4px solid var(--border);
  background: var(--surface-muted);
}

.trace-row + .trace-row::before {
  content: "↓";
  position: absolute;
  top: -15px;
  left: 50%;
  color: var(--muted);
  font-size: 0.9rem;
}

.trace-row.trace-ai {
  border-left-color: var(--brand-blue);
  background: var(--ai-bg);
}

.trace-row.trace-ai .trace-label {
  color: var(--brand-blue-text);
}

.trace-row.trace-rules {
  border-left-color: var(--accent-strong);
  background: var(--accent);
  color: #f4f7fc;
}

.trace-row.trace-rules .trace-label {
  color: #83c3ff;
}

.trace-row.trace-rules .trace-detail {
  color: #c9d8ea;
}

.trace-row.trace-rules .answer-pill.yes {
  background: var(--brand-blue);
  color: var(--navy-ink);
}

.trace-row.trace-rules .answer-pill.no {
  background: #f4f7fc;
  color: var(--accent);
}

.trace-row.tone-rejected {
  border: 2px dashed #8fa6bf;
  border-left-width: 4px;
  background: var(--surface-muted);
  color: var(--text);
}

.trace-row.tone-rejected .trace-label,
.trace-row.tone-rejected .trace-detail {
  color: var(--muted);
}

.trace-row.tone-won {
  border-left-color: var(--accent);
  background: var(--brand-blue);
  color: var(--navy-ink);
}

.trace-row.tone-won .trace-label {
  color: var(--navy-ink);
}

.trace-label {
  color: var(--muted);
  font-family: var(--heading-font);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.trace-value {
  font-size: 1.05rem;
  font-weight: 650;
  overflow-wrap: anywhere;
}

code.trace-value {
  font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
  font-size: 0.95rem;
  color: var(--ai);
}

.trace-value.typing::after {
  content: "▍";
  margin-left: 1px;
  animation: trace-blink 0.9s steps(1) infinite;
}

.trace-value.pending {
  color: var(--ai);
  animation: trace-pulse 1s ease-in-out infinite;
}

.trace-detail {
  color: var(--muted);
  font-size: 0.9rem;
}

.trace-compact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
}

.trace-compact .trace-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  border-left-width: 3px;
}

.trace-compact .trace-label {
  display: none;
}

.trace-compact .trace-row + .trace-row::before {
  content: none;
}

.trace-compact .trace-row + .trace-row {
  margin-left: 18px;
}

.trace-compact .trace-row + .trace-row::after {
  content: "→";
  position: absolute;
  left: -16px;
  color: var(--muted);
}

@keyframes trace-blink {
  50% {
    opacity: 0;
  }
}

@keyframes trace-pulse {
  50% {
    opacity: 0.45;
  }
}

/* Laptop fit: on wide screens keep the whole 4x4 board within the viewport height by
   overlaying names on the photos and sizing columns from the available height. */
@media (min-width: 981px) {
  .play-surface {
    grid-template-columns: minmax(0, 1fr) 400px;
  }

  .candidate-board:not(.ai-board) {
    --card-size: calc((100vh - 210px) / 4);
    grid-template-columns: repeat(4, minmax(0, var(--card-size)));
    justify-content: center;
  }

  .candidate-board:not(.ai-board) .candidate-card {
    position: relative;
    padding: 0;
    gap: 0;
    overflow: hidden;
  }

  .candidate-board:not(.ai-board) .candidate-image,
  .candidate-board:not(.ai-board) .candidate-image-fallback {
    border: 0;
    border-radius: 0;
  }

  .candidate-board:not(.ai-board) .candidate-name {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    padding: 20px 8px 6px;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    color: #ffffff;
    font-size: 13px;
  }

  .candidate-board:not(.ai-board) .candidate-state {
    display: none;
  }
}

/* 1080p booth laptop: use the full width and scale up the side panel so the trace reads from
   a step back. */
@media (min-width: 1600px) {
  .app-shell {
    width: 100%;
    max-width: 1920px;
  }

  .play-surface,
  .play-surface.demo-mode {
    grid-template-columns: minmax(0, 1fr) 480px;
  }

  .side-panel {
    zoom: 1.25;
  }
}

/* Booth game screen (PEGAInnovate Munich) */
.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.gear-button {
  width: 40px;
  min-width: 40px;
  height: 40px;
  padding: 0;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: transparent;
  border-color: transparent;
  color: var(--muted);
}

.gear-button:hover:not(:disabled) {
  background: var(--surface-muted);
  color: var(--accent);
}

.question-hint {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.count-badge {
  min-width: 24px;
  border-radius: 999px;
  background: var(--accent);
  color: #ffffff;
  padding: 2px 8px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}

.audit-reason {
  color: var(--muted);
  font-size: 12px;
}

/* Newest first, so a long game scrolls inside the lists instead of pushing the page past the screen. */
.history-panel ol {
  max-height: 10vh;
  overflow-y: auto;
}

.audit-panel ol {
  max-height: 8vh;
  overflow-y: auto;
}

.board-count {
  font-family: var(--heading-font);
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  border-radius: 999px;
  padding: 2px 12px;
  transition: background-color 0.3s, color 0.3s;
}

.board-count.changed {
  background: var(--brand-blue);
  color: var(--navy-ink);
}

/* A face the last question knocked out: a bright ring, then it fades to grey. */
.candidate-card.just-eliminated {
  animation: knock-out 1.6s ease-out both;
  animation-delay: var(--knock-out-offset, 0ms);
}

.candidate-card.just-eliminated .candidate-image {
  animation: knock-out-image 1.6s ease-out both;
  animation-delay: var(--knock-out-offset, 0ms);
}

@keyframes knock-out {
  0%,
  55% {
    box-shadow: 0 0 0 4px var(--brand-blue);
  }
  100% {
    box-shadow: 0 0 0 0 transparent;
  }
}

@keyframes knock-out-image {
  0%,
  45% {
    filter: none;
    opacity: 1;
  }
  100% {
    filter: grayscale(1);
    opacity: 0.42;
  }
}

.end-screen {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(11, 36, 64, 0.55);
}

.end-card {
  width: min(520px, 100%);
  display: grid;
  justify-items: center;
  gap: 12px;
  border-radius: 12px;
  border-top: 8px solid var(--accent);
  background: var(--surface);
  padding: 32px;
  text-align: center;
  box-shadow: 0 24px 80px rgba(11, 36, 64, 0.35);
}

.end-screen.won .end-card {
  border-top-color: var(--brand-blue);
}

.end-eyebrow {
  margin: 0;
  color: var(--brand-blue-text);
  font-family: var(--heading-font);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.end-photo-image {
  width: 180px;
  height: 180px;
  border-radius: 12px;
  object-fit: cover;
}

.end-title {
  margin: 0;
  font-size: 30px;
}

.end-stats {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.end-actions {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.end-countdown {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* Laptop and up: a wider side panel and a larger trace, the part staff point at. */
@media (min-width: 981px) {
  .trace-panel {
    gap: 16px;
    padding: 16px;
  }

  .trace-row {
    padding: 12px 14px;
  }

  .trace-row + .trace-row::before {
    top: -19px;
  }

  .trace-label {
    font-size: 0.8rem;
  }

  .trace-value {
    font-size: 1.3rem;
  }

  code.trace-value {
    font-size: 1.15rem;
  }

  .trace-detail {
    font-size: 1rem;
  }
}