/* Operator console styles. No web fonts (we don't want the operator
   host to leak via a third-party CDN). System font stack only. */
:root {
  --bg: #0d1117;
  --fg: #c9d1d9;
  --accent: #58a6ff;
  --tile-bg: #161b22;
  --tile-border: #30363d;
  --err: #ff7b72;
  --ok: #56d364;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── welcome page ─────────────────────────────────────────── */
body.welcome {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}
body.welcome main {
  max-width: 480px;
  padding: 2rem;
  text-align: center;
}
body.welcome h1 {
  font-size: 2rem;
  margin: 0 0 1rem;
}
form#password-form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1rem;
}
form#password-form label {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.25rem;
}
form#password-form input[type="password"] {
  padding: 0.5rem;
  background: var(--tile-bg);
  color: var(--fg);
  border: 1px solid var(--tile-border);
  border-radius: 4px;
  font-size: 1rem;
}
form#password-form button {
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
  border: 0;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
}
.error { color: var(--err); }

/* ── app dashboard ────────────────────────────────────────── */
body.app {
  padding: 0 1.5rem 1.5rem;
}
header.topbar {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
  border-bottom: 1px solid var(--tile-border);
  margin-bottom: 1.5rem;
}
header.topbar h1 {
  font-size: 1.25rem;
  margin: 0;
}
header.topbar nav {
  display: flex;
  gap: 1rem;
  flex: 1;
}
header.topbar nav a.active {
  font-weight: 600;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}
button#logout {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--tile-border);
  border-radius: 4px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
}

main#dashboard {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.tile {
  background: var(--tile-bg);
  border: 1px solid var(--tile-border);
  border-radius: 6px;
  padding: 1rem;
}
.tile h2 {
  font-size: 1rem;
  margin: 0 0 0.75rem;
  color: var(--accent);
}
dl { margin: 0; }
dl dt { font-size: 0.85rem; color: #8b949e; }
dl dd {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
}
.sparkline-row {
  margin-bottom: 0.75rem;
}
.sparkline-row .label {
  font-size: 0.85rem;
  color: #8b949e;
}
.sparkline {
  width: 100%;
  height: 40px;
  stroke: var(--accent);
  stroke-width: 1.5;
  fill: none;
}
.footer {
  text-align: right;
  font-size: 0.8rem;
  color: #6e7681;
  margin-top: 1rem;
}