:root {
  --bg: #f4f6f8;
  --panel: #ffffff;
  --line: #d8dee6;
  --text: #1f2933;
  --muted: #677489;
  --ok: #178a4d;
  --warning: #b7791f;
  --critical: #c53030;
  --unknown: #6b7280;
}

body {
  background: var(--bg);
  color: var(--text);
}

.navbar-brand {
  letter-spacing: 0;
}

.page-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
}

.page-heading h1 {
  font-size: 28px;
  margin: 0;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 20px;
}

.panel h2 {
  font-size: 18px;
  margin-bottom: 16px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

.metric {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px;
}

.metric.compact {
  padding: 14px;
}

.metric span {
  display: block;
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  display: block;
  font-size: 28px;
  line-height: 1.2;
  margin-top: 6px;
}

.dashboard-chart {
  height: 260px;
}

.status-dot {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  margin-right: 8px;
  vertical-align: middle;
}

.dot-ok { background: var(--ok); }
.dot-warning { background: var(--warning); }
.dot-critical,
.dot-down { background: var(--critical); }
.dot-unknown { background: var(--unknown); }

.status-ok { color: var(--ok); }
.status-warning { color: var(--warning); }
.status-critical { color: var(--critical); }
.status-unknown { color: var(--unknown); }

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background: var(--bg);
}

.auth-panel {
  width: min(420px, calc(100vw - 32px));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 28px;
}

.chat-panel {
  min-height: 620px;
  display: grid;
  grid-template-rows: 1fr auto auto;
  gap: 16px;
}

.chat-log {
  overflow: auto;
  max-height: 520px;
  padding-right: 4px;
}

.chat-message {
  margin-bottom: 16px;
}

.chat-message.user {
  text-align: right;
}

.chat-role {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.chat-bubble {
  display: inline-block;
  max-width: min(720px, 88%);
  text-align: left;
  white-space: pre-wrap;
  background: #eef2f7;
  border: 1px solid #d9e1ec;
  border-radius: 8px;
  padding: 12px 14px;
}

.chat-message.user .chat-bubble {
  background: #e6f0ff;
  border-color: #c6d8f5;
}

.quick-prompts {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-form {
  display: grid;
  grid-template-columns: 180px 1fr auto;
  gap: 10px;
  align-items: stretch;
}

@media (max-width: 900px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .chat-form {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .page-heading {
    align-items: flex-start;
    flex-direction: column;
  }

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