:root {
  --bg: #0f172a;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-2: #475569;
  --accent: #007eb4;
  --accent-2: #009ade;
  --warning: #b45309;
  --danger: #b91c1c;
  --success: #047857;
  --edited: #fbbf24;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: 'Segoe UI', system-ui, -apple-system, Roboto, 'Noto Sans', sans-serif;
  color: var(--text);
  background: var(--surface-2);
  line-height: 1.5;
}

h1, h2, h3 { margin: 0; }
h1 { font-size: 1.1rem; }
h2 { font-size: 1.15rem; }
h3 { font-size: 1rem; }

.topbar {
  background: var(--bg);
  color: white;
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.logo {
  background: var(--accent);
  color: white;
  font-weight: 700;
  letter-spacing: 0.05em;
  width: 2.25rem; height: 2.25rem;
  border-radius: 6px;
  display: inline-flex; align-items: center; justify-content: center;
}
.tagline { margin: 0; color: #cbd5e1; font-size: 0.85rem; }
.primary-nav { display: flex; gap: 0.5rem; margin-left: auto; }
.primary-nav a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 4px;
  font-size: 0.9rem;
}
.primary-nav a:hover { background: #1e293b; }
.primary-nav a.active { background: var(--accent-2); color: white; }
.auth { display: flex; align-items: center; gap: 0.5rem; font-size: 0.85rem; }
.auth button, .auth .btn { font-size: 0.85rem; }

button, .btn {
  background: var(--accent);
  color: white;
  border: 0;
  padding: 0.4rem 0.85rem;
  border-radius: 4px;
  font: inherit;
  cursor: pointer;
}
button:hover, .btn:hover { background: var(--accent-2); }
button[hidden] { display: none; }

main { max-width: 1100px; margin: 1rem auto; padding: 0 1rem 4rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.card > header { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 0.75rem; }
.meta { color: var(--text-2); font-size: 0.85rem; }

.latest-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1.25rem; align-items: start; }
@media (max-width: 800px) { .latest-grid { grid-template-columns: 1fr; } }
.latest-image img {
  width: 100%; height: auto; border: 1px solid var(--border); border-radius: 4px; background: #fff;
}
.caption { font-size: 0.85rem; color: var(--text-2); margin-top: 0.5rem; }

table.kv { width: 100%; border-collapse: collapse; }
table.kv th, table.kv td { text-align: left; padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; }
table.kv th { color: var(--text-2); font-weight: 600; }
table.kv tr.edited td:nth-child(2) { background: rgba(251, 191, 36, 0.18); position: relative; }
table.kv td.editable { cursor: pointer; }
table.kv td.editable:hover { background: var(--surface-2); }

.cross-check { margin-top: 0.75rem; }
.cross-check summary { cursor: pointer; font-size: 0.9rem; color: var(--accent); }
.cross-check pre { background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px; padding: 0.75rem; font-size: 0.8rem; max-height: 240px; overflow: auto; white-space: pre-wrap; }

.chart-wrap { position: relative; height: 360px; }
.legend-controls { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-top: 0.5rem; }
.legend-controls label { font-size: 0.85rem; display: inline-flex; align-items: center; gap: 0.3rem; cursor: pointer; }
.legend-controls .swatch { display: inline-block; width: 0.75rem; height: 0.75rem; border-radius: 2px; }

.banner {
  max-width: 1100px;
  margin: 1rem auto 0;
  padding: 0.75rem 1rem;
  background: var(--warning);
  color: white;
  border-radius: 6px;
}
.banner.hidden { display: none; }
.banner a { color: white; text-decoration: underline; }

dialog { border: 1px solid var(--border); border-radius: 8px; padding: 1rem 1.25rem; min-width: 320px; }
dialog::backdrop { background: rgba(15, 23, 42, 0.45); }
dialog label { display: block; margin-bottom: 0.5rem; font-size: 0.9rem; color: var(--text-2); }
dialog input { width: 100%; padding: 0.4rem 0.5rem; border: 1px solid var(--border); border-radius: 4px; font: inherit; }
dialog menu { display: flex; justify-content: flex-end; gap: 0.5rem; padding: 0; margin: 0.75rem 0 0; }
dialog button { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
dialog button[type="submit"] { background: var(--accent); color: white; border: 0; }
dialog .hint { font-size: 0.8rem; color: var(--text-2); margin: 0 0 0.5rem; }
dialog .error { color: var(--danger); font-size: 0.85rem; margin: 0.5rem 0 0; }
dialog .opt input { width: auto; }

.hint { color: var(--text-2); font-size: 0.85rem; }
.error { color: var(--danger); }
.actions { display: flex; gap: 0.5rem; }
.btn { display: inline-block; text-decoration: none; }

#changes-table, #users-table { width: 100%; border-collapse: collapse; }
#changes-table th, #changes-table td, #users-table th, #users-table td { padding: 0.4rem 0.5rem; border-bottom: 1px solid var(--border); font-size: 0.9rem; text-align: left; vertical-align: top; }
#changes-table th, #users-table th { color: var(--text-2); font-weight: 600; }
#changes-table td.summary { max-width: 480px; }
.sig-low { color: var(--text-2); }
.sig-medium { color: var(--warning); font-weight: 600; }
.sig-high { color: var(--danger); font-weight: 700; }

#latest-fingerprint { background: var(--surface-2); border: 1px solid var(--border); padding: 0.75rem; border-radius: 4px; font-size: 0.75rem; max-height: 240px; overflow: auto; }