:root {
  --bg: #f2f4f5;
  --panel: #ffffff;
  --ink: #182126;
  --muted: #5c6770;
  --line: #dde4e8;
  --accent: #0f766e;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background: linear-gradient(165deg, #e9eff2 0%, #f8fafb 100%);
}

.layout {
  max-width: 1100px;
  margin: 0 auto;
  padding: 18px;
  display: grid;
  gap: 14px;
}

.topbar {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.topbar h1,
.panel h2 {
  margin: 0;
  font-size: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.controls {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 8px;
  background: #fff;
}

button {
  border: 1px solid #0d5f59;
  background: var(--accent);
  color: #fff;
  border-radius: 7px;
  padding: 8px 10px;
  cursor: pointer;
}

button:hover {
  filter: brightness(0.95);
}

.list {
  display: grid;
  gap: 8px;
}

.row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}

.row .meta {
  color: var(--muted);
  font-size: 12px;
  margin-top: 4px;
}

.output {
  white-space: pre-wrap;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  min-height: 96px;
  background: #fbfdfe;
}

#chatTranscript {
  max-height: 360px;
  overflow: auto;
}