:root {
  color-scheme: dark;
  --bg: #0d0e0c;
  --surface: #151713;
  --surface-2: #1b1d18;
  --surface-3: #22241e;
  --ink: #eee7d4;
  --muted: #aaa490;
  --faint: #747467;
  --line: #34372f;
  --line-strong: #55594d;
  --human: #e9bd62;
  --human-soft: rgba(233, 189, 98, 0.13);
  --agent: #79cbbb;
  --agent-soft: rgba(121, 203, 187, 0.12);
  --alert: #fa5938;
  --ok: #9cd477;
  --focus: #fff3c8;
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --max-width: 96rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  scroll-behavior: smooth;
}

body {
  min-width: 0;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(238, 231, 212, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(238, 231, 212, 0.025) 1px, transparent 1px);
  background-size: 2rem 2rem;
}

button,
code {
  font: inherit;
}

button {
  min-height: 2.75rem;
}

button:focus-visible,
a:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: var(--space-3);
  left: var(--space-3);
  padding: var(--space-3) var(--space-4);
  color: var(--bg);
  background: var(--focus);
  transform: translateY(-180%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
main {
  width: min(calc(100% - 3rem), var(--max-width));
  margin-inline: auto;
}

.site-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-8);
  padding-block: var(--space-10) var(--space-8);
  border-bottom: 1px solid var(--line-strong);
}

.brand-lockup {
  max-width: 56rem;
}

.eyebrow,
.panel-kicker,
.role-block p,
.turn-card > span,
.human-receipt > span,
.proposal-card > span {
  margin: 0;
  color: var(--muted);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.4;
  text-transform: uppercase;
}

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

h1 {
  max-width: 50rem;
  margin-block: var(--space-2) var(--space-3);
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(2.75rem, 6vw, 6.5rem);
  font-weight: 500;
  letter-spacing: -0.06em;
  line-height: 0.98;
}

h1 .title-accent {
  color: var(--human);
}

h1 .title-lead {
  color: var(--ink);
}

.lede {
  max-width: 48rem;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  line-height: 1.75;
}

.connection-stack {
  display: flex;
  min-width: 16rem;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-2);
}

.language-switcher {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line-strong);
  background: var(--surface);
}

.language-switcher button {
  min-height: 2rem;
  padding: var(--space-2) var(--space-3);
  border: 0;
  border-right: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--muted);
  background: transparent;
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  cursor: pointer;
}

.language-switcher button:last-child {
  border-right: 0;
}

.language-switcher button[aria-pressed="true"] {
  color: var(--bg);
  background: var(--human);
}

.status-chip,
.event-count,
.agent-mark,
.stage-readout span {
  display: inline-flex;
  align-items: center;
  min-height: 2rem;
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--line-strong);
  color: var(--muted);
  background: var(--surface);
  font-family: "Cascadia Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.status-chip::before {
  width: 0.42rem;
  height: 0.42rem;
  margin-right: var(--space-2);
  border-radius: 50%;
  background: currentColor;
  content: "";
}

.status-chip--ready,
.status-chip--done {
  border-color: rgba(156, 212, 119, 0.45);
  color: var(--ok);
}

.status-chip--live {
  border-color: rgba(233, 189, 98, 0.42);
  color: var(--human);
}

.status-chip--off {
  border-color: rgba(250, 89, 56, 0.48);
  color: var(--alert);
}

.role-contract {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 10rem minmax(0, 1fr);
  margin-block: var(--space-8);
  border-block: 1px solid var(--line);
}

.role-block {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: var(--space-4);
  min-height: 6.5rem;
  padding: var(--space-5) var(--space-6);
}

.role-block--human {
  background: var(--human-soft);
}

.role-block--agent {
  background: var(--agent-soft);
}

.role-number {
  color: var(--faint);
  font-family: Georgia, serif;
  font-size: 2rem;
}

.role-block strong {
  display: block;
  margin-top: var(--space-1);
  font-size: clamp(0.92rem, 1.4vw, 1.08rem);
}

.role-block--human p,
.role-block--human .role-tag {
  color: var(--human);
}

.role-block--agent p,
.role-block--agent .role-tag {
  color: var(--agent);
}

.role-tag {
  padding: var(--space-2) var(--space-3);
  border: 1px solid currentColor;
  font-family: "Cascadia Mono", monospace;
  font-size: 0.7rem;
}

.contract-joint {
  position: relative;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: var(--surface);
  font-size: 0.75rem;
}

.contract-joint i {
  position: absolute;
  right: var(--space-4);
  left: var(--space-4);
  height: 1px;
  background: var(--line-strong);
}

.contract-joint span {
  position: relative;
  z-index: 1;
  padding-inline: var(--space-2);
  background: var(--surface);
}

.game-layout {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: var(--space-4);
}

.scene-panel,
.human-panel,
.agent-panel,
.activity-panel {
  border: 1px solid var(--line);
  background: rgba(21, 23, 19, 0.96);
}

.scene-panel {
  grid-column: span 8;
  padding: var(--space-5);
}

.human-panel {
  grid-column: span 4;
  padding: var(--space-5);
  border-color: rgba(233, 189, 98, 0.42);
  background: linear-gradient(180deg, rgba(233, 189, 98, 0.08), rgba(21, 23, 19, 0.98) 38%);
}

.agent-panel {
  grid-column: span 5;
  padding: var(--space-5);
  border-color: rgba(121, 203, 187, 0.32);
}

.activity-panel {
  grid-column: span 7;
  padding: var(--space-5);
}

.panel-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.panel-header--compact {
  align-items: center;
}

.panel-header h2 {
  margin: var(--space-1) 0 0;
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: clamp(1.45rem, 2vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.stage-readout {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-1);
}

.stage-readout strong {
  color: var(--human);
  font-size: 0.78rem;
  font-weight: 600;
}

.scene-frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: #080907;
}

#roomCanvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.feed-corner {
  position: absolute;
  z-index: 2;
  left: var(--space-3);
  padding: var(--space-1) var(--space-2);
  border-left: 2px solid var(--human);
  color: var(--human);
  background: rgba(13, 14, 12, 0.84);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.62rem;
  letter-spacing: 0.08em;
}

.feed-corner--top {
  top: var(--space-3);
}

.feed-corner--bottom {
  bottom: var(--space-3);
}

.scan-line {
  position: absolute;
  z-index: 1;
  top: 0;
  right: 0;
  left: 0;
  height: 1px;
  background: rgba(121, 203, 187, 0.38);
  box-shadow: 0 0 12px rgba(121, 203, 187, 0.45);
  animation: scan 5s linear infinite;
}

@keyframes scan {
  from { transform: translateY(0); }
  to { transform: translateY(38rem); }
}

.scene-caption {
  min-height: 3rem;
  margin: var(--space-3) 0 var(--space-4);
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.65;
}

.stage-rail {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0;
  padding: 1px;
  list-style: none;
  background: var(--line);
}

.stage-rail li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  min-height: 4.25rem;
  padding: var(--space-3);
  color: var(--faint);
  background: var(--bg);
}

.stage-rail li > span {
  font-family: Georgia, serif;
  font-size: 1.55rem;
}

.stage-rail strong,
.stage-rail small {
  display: block;
}

.stage-rail small {
  margin-top: 0.2rem;
  color: var(--faint);
  font-size: 0.7rem;
}

.stage-rail li.is-active {
  color: var(--human);
  background: var(--human-soft);
}

.stage-rail li.is-complete {
  color: var(--ok);
}

.stage-rail li.is-complete > span::after {
  margin-left: var(--space-1);
  content: "✓";
  font-family: sans-serif;
  font-size: 0.72rem;
}

.human-dot {
  width: 0.75rem;
  height: 0.75rem;
  border: 2px solid var(--human);
  border-radius: 50%;
  box-shadow: 0 0 0 0.35rem var(--human-soft);
}

.turn-card {
  min-height: 9.5rem;
  padding: var(--space-5);
  border-top: 2px solid var(--human);
  background: var(--surface-2);
}

.turn-card > span {
  color: var(--human);
}

.turn-card h3 {
  margin: var(--space-3) 0 var(--space-2);
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: 1.55rem;
  font-weight: 500;
  line-height: 1.3;
}

.turn-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.turn-card code {
  color: var(--agent);
  font-family: "Cascadia Mono", monospace;
}

.choice-group {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
  margin: var(--space-4) 0;
  padding: 0;
  border: 0;
}

.choice-group legend {
  width: 100%;
  margin-bottom: var(--space-2);
  color: var(--muted);
  font-size: 0.76rem;
}

.choice-group button {
  display: grid;
  min-height: 6rem;
  place-items: center;
  gap: var(--space-1);
  padding: var(--space-3);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--ink);
  background: var(--surface-2);
  cursor: pointer;
}

.choice-group button:hover:not(:disabled) {
  border-color: var(--human);
  background: var(--human-soft);
}

.choice-group button.is-selected {
  border-color: var(--human);
  color: var(--bg);
  background: var(--human);
}

.choice-group button:disabled {
  color: var(--faint);
  cursor: not-allowed;
  opacity: 0.52;
}

.choice-glyph {
  font-family: Georgia, serif;
  font-size: 2rem;
  line-height: 1;
}

.choice-group--names button {
  min-height: 4.5rem;
  grid-template-columns: auto 1fr;
  text-align: left;
}

.choice-group--names button .choice-letter {
  color: var(--human);
  font-family: Georgia, serif;
  font-size: 1.35rem;
}

.choice-group--names button.is-selected .choice-letter {
  color: var(--bg);
}

.choice-group--doors {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.human-receipt,
.proposal-card {
  padding: var(--space-4);
  border: 1px dashed var(--line-strong);
  background: var(--bg);
}

.human-receipt strong,
.proposal-card strong {
  display: block;
  margin-block: var(--space-2);
  font-size: 0.9rem;
}

.human-receipt p,
.proposal-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.55;
}

.reset-button,
.judge-strip button {
  width: 100%;
  margin-top: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  color: var(--muted);
  background: transparent;
  cursor: pointer;
}

.reset-button:hover,
.judge-strip button:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.agent-mark {
  border-color: rgba(121, 203, 187, 0.45);
  color: var(--agent);
}

.agent-objective {
  min-height: 7.5rem;
  padding: var(--space-5);
  border-top: 2px solid var(--agent);
  background: var(--agent-soft);
}

.agent-objective span {
  display: block;
  margin-bottom: var(--space-3);
  color: var(--agent);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.agent-objective strong {
  font-size: 1rem;
  line-height: 1.6;
}

.mechanism-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-block: var(--space-4);
  padding: 1px;
  background: var(--line);
}

.mechanism-grid div {
  min-width: 0;
  padding: var(--space-3);
  background: var(--bg);
}

.mechanism-grid dt {
  color: var(--faint);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.62rem;
}

.mechanism-grid dd {
  overflow: hidden;
  margin: var(--space-2) 0 0;
  color: var(--agent);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.72rem;
  text-overflow: ellipsis;
}

.activity-trail {
  display: grid;
  max-height: 24rem;
  gap: var(--space-2);
  overflow-y: auto;
  margin: 0;
  padding: 0 var(--space-2) 0 0;
  list-style: none;
  scrollbar-color: var(--line-strong) var(--surface);
}

.activity-item {
  display: grid;
  grid-template-columns: 4.5rem minmax(0, 1fr) auto;
  align-items: start;
  gap: var(--space-3);
  min-height: 4rem;
  padding: var(--space-3);
  border-left: 2px solid var(--line-strong);
  background: var(--bg);
}

.activity-item--blocked {
  border-left-color: var(--alert);
}

.activity-item--complete,
.activity-item--ok,
.activity-item--changed {
  border-left-color: var(--ok);
}

.actor {
  display: inline-flex;
  justify-content: center;
  padding: var(--space-1) var(--space-2);
  border: 1px solid currentColor;
  font-family: "Cascadia Mono", monospace;
  font-size: 0.6rem;
  font-weight: 800;
}

.actor--human { color: var(--human); }
.actor--agent { color: var(--agent); }
.actor--room { color: var(--alert); }

.activity-item code {
  color: var(--ink);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.7rem;
}

.activity-item p {
  margin: var(--space-1) 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  line-height: 1.45;
}

.event-sequence {
  color: var(--faint);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.62rem;
}

.judge-strip {
  display: grid;
  grid-template-columns: 13rem minmax(0, 1fr) 10rem;
  align-items: center;
  gap: var(--space-5);
  margin-block: var(--space-4) var(--space-12);
  padding: var(--space-5);
  border: 1px solid var(--line-strong);
  background: var(--surface-2);
}

.judge-strip h2 {
  margin: var(--space-1) 0 0;
  font-family: Georgia, "Noto Serif SC", serif;
  font-size: 1.25rem;
  font-weight: 500;
}

.judge-strip code {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-left: 2px solid var(--agent);
  color: var(--muted);
  background: var(--bg);
  font-family: "Cascadia Mono", monospace;
  font-size: 0.72rem;
  line-height: 1.6;
}

.judge-strip button {
  margin-top: 0;
  border-color: var(--agent);
  color: var(--agent);
}

#toast {
  position: fixed;
  z-index: 50;
  right: var(--space-5);
  bottom: var(--space-5);
  max-width: min(28rem, calc(100vw - 2rem));
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--ok);
  color: var(--ink);
  background: var(--surface-3);
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transform: translateY(1rem);
  transition: opacity 160ms ease, transform 160ms ease;
}

#toast[data-kind="error"] {
  border-color: var(--alert);
}

#toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

body[data-stage="complete"] .scene-panel,
body[data-stage="complete"] .human-panel {
  border-color: rgba(156, 212, 119, 0.55);
}

@media (max-width: 70rem) {
  .role-block {
    grid-template-columns: auto 1fr;
  }

  .role-tag {
    grid-column: 2;
    justify-self: start;
  }

  .scene-panel {
    grid-column: span 7;
  }

  .human-panel {
    grid-column: span 5;
  }
}

@media (max-width: 56rem) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .connection-stack {
    width: 100%;
    min-width: 0;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .role-contract {
    grid-template-columns: 1fr;
  }

  .contract-joint {
    min-height: 3rem;
  }

  .contract-joint i {
    top: var(--space-4);
    bottom: var(--space-4);
    left: 50%;
    width: 1px;
    height: auto;
  }

  .scene-panel,
  .human-panel,
  .agent-panel,
  .activity-panel {
    grid-column: 1 / -1;
  }

  .judge-strip {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 40rem) {
  .site-header,
  main {
    width: min(calc(100% - 1.5rem), var(--max-width));
  }

  .site-header {
    padding-block: var(--space-8) var(--space-6);
  }

  h1 {
    font-size: clamp(2.65rem, 16vw, 4.5rem);
  }

  .role-contract {
    margin-block: var(--space-5);
  }

  .role-block {
    padding: var(--space-4);
  }

  .scene-panel,
  .human-panel,
  .agent-panel,
  .activity-panel,
  .judge-strip {
    padding: var(--space-4);
  }

  .panel-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .stage-readout {
    align-items: flex-start;
  }

  .stage-rail {
    grid-template-columns: 1fr;
  }

  .stage-rail li {
    min-height: 3.5rem;
  }

  .choice-group {
    grid-template-columns: 1fr;
  }

  .choice-group button,
  .choice-group--names button {
    min-height: 3.75rem;
    grid-template-columns: auto 1fr;
    justify-content: start;
  }

  .choice-group--doors {
    grid-template-columns: repeat(2, 1fr);
  }

  .choice-group--doors button {
    grid-template-columns: 1fr;
  }

  .mechanism-grid {
    grid-template-columns: 1fr;
  }

  .activity-item {
    grid-template-columns: 4.25rem minmax(0, 1fr);
  }

  .event-sequence {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}