:root {
  --paper: #f3eee4;
  --paper-raised: #faf7f0;
  --ink: #1c1915;
  --ink-muted: #5e5850;
  --rule: rgba(28, 25, 21, 0.12);
  --rule-strong: rgba(28, 25, 21, 0.22);
  --bronze: #6a5438;
  --bronze-hover: #5a4730;
  --bronze-pressed: #4a3b28;
  --pine: #2f4a3c;
  --danger: #8f2e2e;
  --danger-bg: rgba(143, 46, 46, 0.08);
  --maya: #3d4a3f;
  --user: #5a4e3d;
  --focus: #6a5438;
  --shadow: 0 1px 0 rgba(28, 25, 21, 0.04);
  --ease: 280ms cubic-bezier(0.22, 1, 0.36, 1);
  --font-display: "Palatino Linotype", Palatino, "Iowan Old Style", "Times New Roman",
    Georgia, serif;
  --font-ui: "Avenir Next", Calibri, "Trebuchet MS", "Segoe UI", system-ui,
    sans-serif;
  --presence-energy: 0;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper: #1c1a16;
    --paper-raised: #24211c;
    --ink: #ece6db;
    --ink-muted: #a79e91;
    --rule: rgba(236, 230, 219, 0.12);
    --rule-strong: rgba(236, 230, 219, 0.22);
    --bronze: #c4a574;
    --bronze-hover: #d4b788;
    --bronze-pressed: #b39264;
    --pine: #9db3a6;
    --danger: #e08a8a;
    --danger-bg: rgba(224, 138, 138, 0.12);
    --maya: #c5d0c8;
    --user: #d2c4ae;
    --focus: #c4a574;
    --shadow: none;
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--font-ui);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

[hidden] {
  display: none !important;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 20;
  padding: 0.6rem 0.9rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: 0.9rem;
}

.skip-link:focus {
  top: 1rem;
}

.room {
  width: min(1080px, calc(100% - 2.5rem));
  margin: 0 auto;
  padding: 2.75rem 0 3rem;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.intro {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.eyebrow {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}

.intro-identity {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
}

.presence {
  flex: 0 0 auto;
  width: 4.5rem;
  height: 6.25rem;
  --presence-energy: 0;
}

.presence-mark {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.presence-ring,
.presence-core {
  fill: none;
  stroke: var(--ink);
  transform-origin: 60px 84px;
  transform-box: fill-box;
}

.presence-ring-outer {
  stroke-width: 0.7;
  opacity: 0.28;
}

.presence-ring-mid {
  stroke-width: 0.9;
  opacity: 0.5;
}

.presence-core {
  fill: var(--ink);
  stroke: none;
  opacity: 0.88;
}

.presence[data-state="connecting"] .presence-ring-mid {
  opacity: 0.7;
}

.presence[data-state="listening"] .presence-core {
  transform: scale(calc(1 + (var(--presence-energy) * 0.35)));
}

.presence[data-state="listening"] .presence-ring-mid {
  transform: scale(calc(1 + (var(--presence-energy) * 0.08)));
  opacity: calc(0.45 + (var(--presence-energy) * 0.35));
}

.presence[data-state="speaking"] .presence-ring-outer {
  transform: scale(calc(1 + (var(--presence-energy) * 0.06)));
  opacity: calc(0.32 + (var(--presence-energy) * 0.28));
}

.presence[data-state="speaking"] .presence-core {
  transform: scale(calc(1 + (var(--presence-energy) * 0.45)));
}

.presence[data-state="error"] .presence-ring,
.presence[data-state="error"] .presence-core {
  stroke: var(--danger);
  fill: var(--danger);
  opacity: 0.7;
}

.intro-copy {
  min-width: 0;
  padding-top: 0.15rem;
}

.intro-copy h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.02em;
}

.role {
  margin: 0.55rem 0 0;
  color: var(--ink-muted);
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.lede {
  margin: 1.1rem 0 0;
  max-width: 34rem;
  font-size: 1.08rem;
  line-height: 1.55;
}

.main {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  flex: 1;
}

.stage {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
  max-width: 38rem;
}

.status-region {
  min-height: 1.5rem;
}

.status-label,
.capability-label {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15rem;
  line-height: 1.3;
}

.capability-label {
  color: var(--pine);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 3px;
  padding: 0.82rem 1.35rem;
  font: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background var(--ease), color var(--ease), border-color var(--ease);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--bronze);
  color: var(--paper);
}

.btn-primary:not(:disabled):hover {
  background: var(--bronze-hover);
}

.btn-primary:not(:disabled):active {
  background: var(--bronze-pressed);
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--rule-strong);
}

.btn-secondary:not(:disabled):hover {
  background: var(--paper-raised);
}

.btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
}

.error-banner {
  margin: 0;
  padding: 0.85rem 0;
  color: var(--danger);
  border-top: 1px solid var(--danger);
  border-bottom: 1px solid var(--danger);
  background: transparent;
  font-size: 0.95rem;
}

.farewell {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.1rem;
  color: var(--ink-muted);
}

.disclosure {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  max-width: 34rem;
  padding-top: 0.25rem;
}

.disclosure p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

.canvas,
.booking {
  max-width: 38rem;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--rule);
}

.canvas h2,
.booking h2,
.conversation-header h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
}

.canvas-fields {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1rem;
}

.canvas-field h3 {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}

.canvas-field p {
  margin: 0.35rem 0 0;
  font-size: 1.02rem;
}

.booking-summary {
  margin: 0.65rem 0 0;
  font-size: 1.02rem;
}

.conversation {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--rule);
}

.conversation-header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 38rem;
}

.hint {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.88rem;
}

.transcript {
  min-height: 8rem;
  max-height: min(48vh, 440px);
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  padding: 0.25rem 0 0.5rem;
}

.transcript-empty {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.95rem;
}

.turn {
  display: grid;
  grid-template-columns: 5.25rem minmax(0, 1fr);
  column-gap: 1.1rem;
  row-gap: 0.15rem;
  max-width: 42rem;
}

.turn-label {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--ink-muted);
  padding-top: 0.12rem;
}

.turn-maya .turn-label {
  color: var(--maya);
}

.turn-user .turn-label {
  color: var(--user);
}

.turn-text {
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  white-space: pre-wrap;
  word-break: break-word;
  font-size: 1.05rem;
  line-height: 1.55;
}

.turn-pending .turn-text {
  color: var(--ink-muted);
}

.footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--ink-muted);
  font-size: 0.84rem;
}

.footer p {
  margin: 0;
  max-width: 38rem;
}

@media (min-width: 960px) {
  .room {
    display: grid;
    grid-template-columns: minmax(20rem, 26rem) minmax(0, 1fr);
    grid-template-rows: auto 1fr auto;
    width: min(1120px, calc(100% - 4rem));
    padding: 4.25rem 0 3rem;
    gap: 1.5rem 4.5rem;
    align-items: start;
  }

  .intro {
    grid-column: 1;
    grid-row: 1 / 3;
    position: sticky;
    top: 3rem;
  }

  .intro-identity {
    flex-direction: column;
    gap: 2rem;
  }

  .presence {
    width: 5.5rem;
    height: 7.6rem;
  }

  .lede {
    max-width: 22rem;
  }

  .main {
    grid-column: 2;
    grid-row: 1 / 3;
    padding-top: 2.65rem;
  }

  .footer {
    grid-column: 1 / -1;
    grid-row: 3;
  }
}

@media (max-width: 640px) {
  .room {
    width: min(100% - 1.5rem, 1080px);
    padding: 1.6rem 0 2.25rem;
    gap: 1.6rem;
  }

  .intro-identity {
    gap: 1rem;
  }

  .presence {
    width: 3.4rem;
    height: 4.7rem;
  }

  .intro-copy h1 {
    font-size: 2.35rem;
  }

  .lede {
    font-size: 1rem;
  }

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

  .btn {
    width: 100%;
  }

  .turn {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }

  .transcript {
    max-height: 42vh;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn,
  .presence-ring,
  .presence-core {
    transition: none;
  }

  .presence,
  .presence[data-state="listening"] .presence-core,
  .presence[data-state="listening"] .presence-ring-mid,
  .presence[data-state="speaking"] .presence-ring-outer,
  .presence[data-state="speaking"] .presence-core {
    --presence-energy: 0;
    transform: none;
  }
}

@media (prefers-contrast: more) {
  :root {
    --rule: currentColor;
    --ink-muted: var(--ink);
  }

  .btn-primary {
    border-color: var(--ink);
  }
}