/* NFR-1406: severity is always shown by text plus colour, never colour alone. Colour tokens are
   declared in index.html's inline <style>, not here - every colour below is a var() reference. */

* { box-sizing: border-box; }

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

header, footer {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

footer {
  border-top: 1px solid var(--border);
  border-bottom: none;
  color: var(--muted);
  font-size: 0.85rem;
}

nav a {
  color: var(--fg);
  margin-right: 1rem;
  text-decoration: none;
}

nav a:hover, nav a:focus {
  text-decoration: underline;
}

main {
  padding: 1rem;
  max-width: 60rem;
  margin: 0 auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th, td {
  text-align: left;
  padding: 0.4rem 0.6rem;
  border-bottom: 1px solid var(--border);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
}

.severity {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 0.3rem;
  font-weight: 600;
  font-size: 0.8rem;
}

.severity-critical { background: var(--critical); color: var(--on-severity); }
.severity-high { background: var(--high); color: var(--on-severity); }
.severity-medium { background: var(--medium); color: var(--on-severity); }
.severity-low { background: var(--low); color: var(--on-severity); }
.severity-info { background: var(--info); color: var(--on-severity); }

.stale {
  color: var(--medium);
}

.sparkline {
  display: block;
}

button {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 0.3rem;
  padding: 0.3rem 0.7rem;
  cursor: pointer;
}

button:hover {
  border-color: var(--fg);
}