:root {
  color-scheme: light;
  --bg: #f5f7f8;
  --panel: #ffffff;
  --text: #1d2528;
  --muted: #637174;
  --line: #d9e0e2;
  --accent: #146c5f;
  --danger: #9d2f2f;
  --warn: #986b10;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 22px;
  font-weight: 700;
}

h2 {
  margin-bottom: 14px;
  font-size: 15px;
}

p,
label,
dt {
  color: var(--muted);
  font-size: 13px;
}

button,
input,
select,
textarea {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
}

button {
  min-height: 36px;
  padding: 0 12px;
  border-color: var(--accent);
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 9px 10px;
}

label {
  display: grid;
  gap: 6px;
}

.layout {
  display: grid;
  grid-template-columns: minmax(260px, 320px) 1fr;
  gap: 16px;
  max-width: 1180px;
  margin: 0 auto;
  padding: 18px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 16px;
}

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

.status-panel {
  grid-column: 1;
}

.chat-panel,
.reviews-panel {
  grid-column: 2;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin: 0;
}

.metrics div {
  border-left: 3px solid var(--accent);
  padding-left: 10px;
}

dd {
  margin: 2px 0 0;
  font-size: 24px;
  font-weight: 700;
}

.row {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

#messageInput {
  resize: vertical;
}

#sendButton {
  margin-top: 10px;
}

#chatOutput {
  min-height: 120px;
  margin: 12px 0 0;
  overflow: auto;
  white-space: pre-wrap;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f9fbfb;
  padding: 12px;
}

.review-list {
  display: grid;
  gap: 10px;
}

.review-item {
  border: 1px solid var(--line);
  border-left: 4px solid var(--warn);
  border-radius: 8px;
  padding: 12px;
}

.review-item strong {
  display: block;
  margin-bottom: 6px;
}

.review-item p {
  margin-top: 8px;
  color: var(--text);
}

.review-actions {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}

.review-actions button:last-child {
  border-color: var(--danger);
  background: var(--danger);
}

@media (max-width: 820px) {
  .layout,
  .row {
    grid-template-columns: 1fr;
  }

  .status-panel,
  .chat-panel,
  .reviews-panel {
    grid-column: 1;
  }
}