:root {
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  color: #233137;
  background: #f5f6f3;
  line-height: 1.4;
  font-size: 14px;
  --ink: #233137;
  --muted: #718083;
  --line: #dfe5e1;
  --panel: #fff;
  --teal: #0a827d;
  --teal-dark: #075f5d;
  --teal-pale: #e6f4f1;
  --amber: #ad6b18;
  --red: #b84b4b;
  --shadow: 0 4px 18px rgba(31, 57, 58, 0.06);
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
  min-height: 100vh;
}
.topbar {
  height: 68px;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #fff;
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 2;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-mark {
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--teal);
  color: white;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 18px;
}
.brand strong {
  display: block;
  letter-spacing: 0.01em;
}
.brand small {
  display: block;
  color: var(--muted);
  font-size: 11px;
}
.header-meta,
.button-row,
.toggle-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.shell {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 13px;
  box-shadow: var(--shadow);
  padding: 17px;
}
.main-column {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}
.main-column > .error-alert {
  grid-column: 1 / -1;
}
.test-controls {
  border: 1px solid var(--line);
  border-radius: 13px;
  background: #eef2ef;
}
.test-controls > summary {
  cursor: pointer;
  padding: 16px 18px;
  color: var(--ink);
}
.test-controls > summary strong {
  margin-left: 8px;
}
.test-controls > summary span {
  margin-left: 12px;
  color: var(--muted);
  font-size: 12px;
}
.test-controls-body {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0 14px 14px;
  align-items: start;
}
.test-controls-body .timeline-panel {
  grid-column: 1 / -1;
}
.workflow-controls .header-meta {
  flex-wrap: wrap;
  margin-top: 16px;
}
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
}
.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.panel-heading h1,
.panel-heading h2 {
  font-size: 16px;
  line-height: 1.2;
  margin: 2px 0 0;
  color: var(--ink);
}
.panel-heading h1 {
  font-size: 20px;
}
.eyebrow {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  font-weight: 700;
  color: var(--teal);
}
.muted {
  color: var(--muted);
}
.copy,
.microcopy {
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 14px;
}
.microcopy {
  font-size: 11px;
  margin: 10px 0 0;
  line-height: 1.45;
}
.pill {
  border-radius: 99px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  font-size: 11px;
  white-space: nowrap;
}
.pill.connected {
  color: var(--teal-dark);
  border-color: #9dd5ce;
  background: var(--teal-pale);
}
.pill.paused {
  color: var(--amber);
  border-color: #e4c28c;
  background: #fff7e7;
}
.pill.error {
  color: var(--red);
  border-color: #e4aaaa;
  background: #fff0f0;
}
.status-dot {
  height: 8px;
  width: 8px;
  border-radius: 50%;
  background: var(--teal);
  margin-top: 6px;
}
.workflow-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.workflow-card {
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 10px;
  background: #fbfcfb;
  cursor: pointer;
  text-align: left;
  transition: 0.15s;
}
.workflow-card:hover,
.workflow-card.selected {
  border-color: #7bc5bf;
  background: var(--teal-pale);
}
.workflow-card strong {
  display: block;
  font-size: 13px;
}
.workflow-card span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  margin-top: 4px;
}
.session-box {
  margin-top: 20px;
  padding-top: 13px;
  border-top: 1px solid var(--line);
}
.session-box code {
  display: block;
  font-size: 10px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  margin: 5px 0 10px;
}
.button {
  border: 1px solid #c7d6d3;
  background: #fff;
  color: var(--ink);
  border-radius: 7px;
  padding: 8px 11px;
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
}
.button:hover {
  border-color: var(--teal);
  color: var(--teal-dark);
}
.button.primary {
  background: var(--teal);
  border-color: var(--teal);
  color: #fff;
  font-weight: 650;
}
.button.primary:hover {
  background: var(--teal-dark);
  color: #fff;
}
.button.ghost {
  background: #f8faf9;
}
.button.small {
  font-size: 11px;
  padding: 6px 8px;
}
.button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}
.prompt {
  font-size: 18px;
  line-height: 1.45;
  margin: 8px 0 17px;
  max-width: 800px;
}
.interaction-area {
  border: 1px solid #b9dcd8;
  background: #f5fbfa;
  border-radius: 10px;
  padding: 15px;
  min-height: 94px;
}
.interaction-area.empty {
  background: #fafcfa;
  border-color: var(--line);
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 9px;
  min-height: 70px;
}
.empty-icon {
  font-size: 22px;
  color: #9bc9c5;
}
.interaction-area label,
.control-group label,
.longtask-panel label,
.evaluation-panel label {
  display: block;
  font-size: 11px;
  color: var(--muted);
  font-weight: 600;
}
.interaction-form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: end;
}
.interaction-form label {
  flex: 1;
  min-width: 150px;
}
.interaction-form input,
.interaction-form textarea,
.interaction-form select,
.control-group input,
.control-group select,
.controls-panel > label input,
.chat-form input,
.evaluation-panel input,
.evaluation-panel textarea {
  display: block;
  width: 100%;
  margin-top: 5px;
  border: 1px solid #cdd9d6;
  border-radius: 6px;
  padding: 8px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 13px;
}
.interaction-form input:focus,
.control-group input:focus,
.control-group select:focus,
input:focus,
textarea:focus {
  outline: 2px solid #b5e1dc;
  outline-offset: 1px;
}
.range-help {
  font-size: 11px;
  color: var(--muted);
  margin: 7px 0;
}
.table-wrap {
  overflow: auto;
  margin: 2px 0 10px;
}
.data-table {
  border-collapse: collapse;
  width: 100%;
  font-size: 12px;
}
.data-table th,
.data-table td {
  padding: 7px 8px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.data-table th {
  color: var(--muted);
  font-weight: 600;
}
.data-table tr.selectable {
  cursor: pointer;
}
.data-table tr.selectable:hover,
.data-table tr.selected {
  background: var(--teal-pale);
}
.effects-area {
  border-top: 1px solid var(--line);
  margin-top: 14px;
  padding-top: 12px;
}
.effects-area h3 {
  font-size: 12px;
  margin: 0 0 7px;
}
.hidden {
  display: none !important;
}
.chat-form {
  display: flex;
  gap: 8px;
  margin-top: 9px;
}
.chat-form input {
  margin: 0;
}
.empty-state {
  color: var(--muted);
  font-size: 12px;
  padding: 10px 0;
}
.control-group {
  display: grid;
  gap: 9px;
}
.control-group label,
.controls-panel > label {
  margin-top: 9px;
}
.toggle-row {
  justify-content: space-between;
  flex-wrap: wrap;
  margin-top: 12px;
}
.toggle-row label {
  font-size: 11px;
  color: var(--muted);
  font-weight: 500;
}
.toggle-row input {
  accent-color: var(--teal);
  margin-right: 5px;
}
.divider {
  border-top: 1px solid var(--line);
  margin: 14px 0;
}
.hint {
  font-weight: 400;
  color: #9aa6a5;
  float: right;
}
.icon-button {
  border: 0;
  background: transparent;
  font-size: 20px;
  color: var(--muted);
  cursor: pointer;
}
.timeline {
  max-height: 390px;
  overflow: auto;
}
.timeline-item {
  border-left: 2px solid #badbd7;
  margin-left: 4px;
  padding: 0 0 12px 12px;
  position: relative;
}
.timeline-item:before {
  content: "";
  position: absolute;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
  left: -4px;
  top: 4px;
}
.timeline-item time {
  font-size: 10px;
  color: #9aa6a5;
}
.timeline-item strong {
  display: block;
  font-size: 11px;
  margin-top: 2px;
}
.timeline-item pre {
  white-space: pre-wrap;
  word-break: break-word;
  font:
    11px/1.4 ui-monospace,
    SFMono-Regular,
    Menlo,
    monospace;
  color: #5b6868;
  margin: 3px 0 0;
}
.eval-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}
.wide-label {
  margin-top: 9px;
}
.evaluation-panel textarea {
  resize: vertical;
}
.case-list {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.case-button {
  font-size: 10px;
  border: 1px solid var(--line);
  background: #fafcfa;
  border-radius: 99px;
  padding: 5px 8px;
  cursor: pointer;
}
.case-button:hover {
  border-color: var(--teal);
}
.longtask-panel output {
  float: right;
  color: var(--teal);
  font-weight: 700;
}
.longtask-panel input[type="range"] {
  accent-color: var(--teal);
  width: 100%;
  margin-top: 9px;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
@media (max-width: 780px) {
  .topbar {
    padding: 0 16px;
  }
  .shell {
    padding: 16px 12px 28px;
    gap: 14px;
  }
  .main-column,
  .test-controls-body {
    grid-template-columns: minmax(0, 1fr);
    gap: 14px;
  }
  .test-controls > summary span {
    display: block;
    margin: 5px 0 0 22px;
  }
  .prompt {
    font-size: 16px;
  }
}
@media (max-width: 520px) {
  .topbar {
    height: 58px;
  }
  .panel {
    padding: 14px;
  }
  .panel-heading {
    flex-wrap: wrap;
  }
  .eval-grid {
    grid-template-columns: 1fr;
  }
  .button-row {
    flex-wrap: wrap;
  }
  .interaction-form {
    display: block;
  }
  .interaction-form .button {
    margin-top: 9px;
    width: 100%;
  }
}

.effect-card {
  color: var(--muted);
  margin: 6px 0;
}
.result-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 18px;
}
.result-list dt {
  color: var(--muted);
}
.result-list dd {
  margin: 0;
  color: var(--ink);
  font-weight: 600;
}
#chatStatus {
  margin: 10px 0 0;
  font-size: 12px;
}

.voice-toolbar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.voice-status { font-size: 13px; margin: 10px 0 14px; min-height: 20px; }
.voice-toolbar .recording { background: #a73540; border-color: #a73540; }
#micLevel { width: 90px; accent-color: var(--teal); }
.observation-example { background: #f2f7f6; padding: 14px; border-radius: 10px; margin-bottom: 16px; }
.observation-example p, .observation-result p { line-height: 1.6; white-space: pre-wrap; overflow-wrap: anywhere; }
.observation-example strong { font-size: 12px; text-transform: uppercase; color: var(--teal); letter-spacing: .04em; }
.observation-example small { color: var(--muted); }
.observation-form { flex-wrap: wrap; }
.observation-form > label { width: 100%; flex-basis: 100%; }
.observation-result { color: var(--ink); }
[hidden] { display: none !important; }

.interaction-form textarea { resize: vertical; min-height: 95px; }

.shared-chat-frame {
  display: block;
  width: 100%;
  height: clamp(420px, 60vh, 680px);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 12px;
}
#sharedChatStatus { font-size: 12px; }

/* The session shell owns Start/Stop; shared web UI owns conversation rendering. */
[hidden] { display: none !important; }
.start-screen { max-width: 660px; width: 100%; margin: 48px auto 20px; padding: 40px; }
.start-screen h1 { font-size: 30px; margin: 12px 0; }
.start-screen > p { max-width: 520px; }
.start-screen .primary { display: block; min-width: 140px; margin-top: 24px; font-size: 17px; }
.microphone-choice { display: flex; align-items: center; gap: 10px; margin-top: 28px; }
.microphone-choice input { width: auto; }
.session-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.session-toolbar p { margin: 4px 0 0; }
@media (max-width: 600px) { .start-screen { padding: 24px; margin-top: 12px; } }