:root {
  --bg: #f4f6f8;
  --surface: #fff;
  --text: #1a1d21;
  --muted: #5c6570;
  --accent: #1e4d8c;
  --accent-soft: #e8f0fa;
  --ok: #1a7f4b;
  --ok-bg: #e6f5ec;
  --bad: #b91c1c;
  --bad-bg: #fee2e2;
  --border: #d8dee6;
  --radius: 10px;
  font-family: "Segoe UI", system-ui, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); line-height: 1.5; }

.top {
  background: linear-gradient(135deg, #1e3a5f, #1e4d8c);
  color: #fff;
  padding: 1.25rem 1.5rem;
}
.top h1 { margin: 0 0 0.35rem; font-size: 1.35rem; }
.top p { margin: 0; opacity: 0.92; font-size: 0.95rem; }

main { max-width: 52rem; margin: 0 auto; padding: 1.25rem; }

nav.topnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
nav.topnav a {
  color: #fff;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  background: rgba(255,255,255,0.15);
  font-size: 0.88rem;
}
nav.topnav a.active { background: rgba(255,255,255,0.35); font-weight: 600; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.panel h2 { margin-top: 0; font-size: 1.1rem; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 1rem;
  margin: 1rem 0;
}
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  text-decoration: none;
  color: inherit;
  background: var(--surface);
  transition: box-shadow 0.15s;
}
.card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.08); }
.card h3 { margin: 0 0 0.35rem; font-size: 1rem; color: var(--accent); }
.card p { margin: 0; font-size: 0.88rem; color: var(--muted); }

.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.82rem;
  font-weight: 600;
}
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.bad { background: var(--bad-bg); color: var(--bad); }
.badge.pending { background: var(--accent-soft); color: var(--accent); }

.metrics dl {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.35rem 1.25rem;
  margin: 0;
}
.metrics dt { font-weight: 600; }
.metrics dd { margin: 0; }

.muted { color: var(--muted); font-size: 0.9rem; }
.hidden { display: none !important; }

button, .file-btn {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font-size: 0.9rem;
  background: var(--accent);
  color: #fff;
}
.file-btn { display: inline-block; }
.file-btn input { display: none; }

table.simple {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
table.simple th, table.simple td {
  border: 1px solid var(--border);
  padding: 0.45rem 0.65rem;
  text-align: left;
}
table.simple th { background: var(--bg); }

footer {
  text-align: center;
  padding: 1rem;
  color: var(--muted);
  font-size: 0.82rem;
}