:root {
  --accent: #475569;
  --accent2: #0f766e;
  --fg: #111827;
  --muted: #6b7280;
  --bg: #eef0f3;
  --card: #ffffff;
  --line: #d1d5db;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 15px/1.55 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

header {
  background: var(--accent);
  color: #fff;
  padding: 30px 24px 28px;
}

header .brand {
  display: flex;
  align-items: center;
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}

header .brand .logo {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  background: #fff;
  color: var(--accent);
  font-weight: 700;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

header h1 {
  margin: 0 0 4px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

header h1 .muted {
  font-weight: 400;
  color: #cbd5e1;
}

header p {
  margin: 0;
  font-size: 13px;
  color: #cbd5e1;
}

.state {
  display: inline-block;
  padding: 2px 8px;
  margin-left: 4px;
  border-radius: 3px;
  background: var(--accent2);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 22px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 16px 18px;
}

.card h2 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}

.hint {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 13px;
}

.metric {
  margin: 0;
  font-family: ui-monospace, monospace;
  font-size: 13px;
  color: var(--fg);
}

.bottom {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  text-align: center;
  font-size: 13px;
}

.bottom a {
  color: var(--accent2);
  text-decoration: none;
  margin: 0 4px;
}

.bottom a:hover { text-decoration: underline; }

.updated {
  margin: 8px 0 0;
  font-size: 11px;
  color: var(--muted);
  word-break: break-all;
}

footer {
  text-align: center;
  padding: 16px 20px 28px;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.02em;
  word-break: break-all;
}