:root {
  --bg: #0f1419;
  --panel: #1a2029;
  --panel-2: #222b36;
  --line: #2a3340;
  --fg: #d6deeb;
  --dim: #8b98a9;
  --ok: #5fd38d;
  --warn: #f5cc5c;
  --bad: #ef6565;
  --accent: #6cb7ff;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.45 -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- nav ----------------------------------------------------------------- */
.nav {
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  padding: 8px 24px;
  display: flex;
  align-items: center;
  gap: 4px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.nav-brand {
  font-weight: 600;
  font-size: 14px;
  margin-right: 16px;
}
.nav-brand b { color: var(--accent); }
.nav-links { display: flex; gap: 4px; flex: 1; }
.nav a.tab {
  padding: 6px 12px;
  border-radius: 4px;
  color: var(--dim);
  font-size: 13px;
  font-weight: 500;
}
.nav a.tab:hover { background: var(--panel-2); color: var(--fg); text-decoration: none; }
.nav a.tab.active { background: #1f2a3a; color: var(--fg); }
.nav-meta {
  color: var(--dim);
  font-size: 12px;
  font-family: var(--mono);
}

/* ---- dropdown navigation ------------------------------------------------- */
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  min-width: 160px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: all 0.15s ease;
  z-index: 20;
}
.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-item {
  display: block;
  padding: 8px 14px;
  color: var(--dim);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-radius: 0;
}
.dropdown-item:hover {
  background: var(--panel-2);
  color: var(--fg);
  text-decoration: none;
}
.dropdown-item.active {
  background: #1f2a3a;
  color: var(--fg);
}
.dropdown-toggle::after {
  content: ' ▼';
  font-size: 10px;
  color: var(--dim);
  margin-left: 4px;
}

/* ---- page layout --------------------------------------------------------- */
.page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 24px;
}
h1 { margin: 0 0 4px; font-size: 22px; font-weight: 600; }
.subtitle { color: var(--dim); font-size: 13px; margin-bottom: 20px; }
.subtitle b { color: var(--fg); }

/* ---- cards / KPI tiles --------------------------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px 16px;
}
.card h2 {
  margin: 0 0 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
}
.card.tile {
  cursor: pointer;
  transition: border-color 0.15s, transform 0.15s;
}
.card.tile:hover { border-color: var(--accent); }
.card.tile:active { transform: translateY(1px); }
.tile-value {
  font-size: 32px;
  font-weight: 600;
  font-family: var(--mono);
}
.tile-label {
  font-size: 11px;
  color: var(--dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.tile-sub { font-size: 12px; color: var(--dim); margin-top: 4px; }

/* ---- key/value lists ----------------------------------------------------- */
.kv {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 4px 10px;
  font-family: var(--mono);
  font-size: 13px;
}
.kv dt { color: var(--dim); }
.kv dd { margin: 0; word-break: break-all; }

/* ---- tables -------------------------------------------------------------- */
table.data {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--mono);
  font-size: 12px;
}
table.data th {
  text-align: left;
  color: var(--dim);
  font-weight: 500;
  padding: 6px 10px 6px 0;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.data td {
  padding: 6px 10px 6px 0;
  border-bottom: 1px solid #202832;
}
table.data tr:last-child td { border-bottom: none; }
table.data tbody tr.clickable { cursor: pointer; }
table.data tbody tr.clickable:hover { background: var(--panel-2); }

/* ---- search input -------------------------------------------------------- */
.search {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 6px 10px;
  border-radius: 4px;
  font: 13px var(--mono);
  width: 280px;
}
.search:focus { outline: 1px solid var(--accent); }

.toolbar {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

/* ---- buttons ------------------------------------------------------------- */
button.btn {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--fg);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 13px;
  cursor: pointer;
}
button.btn:hover { border-color: var(--accent); }
button.btn.primary { background: #1f3a55; border-color: var(--accent); }
button.btn.danger { background: #3a1a1a; border-color: #6a2a2a; color: var(--bad); }
button.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ---- status colors ------------------------------------------------------- */
.ok-txt { color: var(--ok); }
.bad-txt { color: var(--bad); }
.warn-txt { color: var(--warn); }
.dim { color: var(--dim); }

.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--dim); display: inline-block; vertical-align: middle; flex-shrink: 0; }
.dot.ok { background: var(--ok); box-shadow: 0 0 6px rgba(95,211,141,.5); }
.dot.bad { background: var(--bad); box-shadow: 0 0 6px rgba(239,101,101,.5); }
.dot.unk { background: var(--warn); }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 10px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge.ok { background: #14302a; color: var(--ok); }
.badge.bad { background: #3a1a1a; color: var(--bad); }
.badge.warn { background: #302a14; color: var(--warn); }
.badge.dim { background: var(--panel-2); color: var(--dim); }

/* ---- banners ------------------------------------------------------------- */
.status-banner {
  font-family: var(--mono);
  font-size: 13px;
  padding: 10px 14px;
  border-radius: 6px;
  margin-bottom: 16px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.status-banner.ok { background: #14302a; border: 1px solid #2a5b4d; color: var(--ok); }
.status-banner.bad { background: #3a1a1a; border: 1px solid #6a2a2a; color: var(--bad); }
.status-banner.warn { background: #302a14; border: 1px solid #5b4d2a; color: var(--warn); }

/* ---- modal --------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 24px;
  z-index: 100;
  overflow-y: auto;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 100%;
  max-width: 900px;
  max-height: calc(100vh - 120px);
  display: flex;
  flex-direction: column;
}
.modal-head {
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.modal-head h2 { margin: 0; font-size: 16px; font-weight: 600; }
.modal-body {
  padding: 16px 20px;
  overflow-y: auto;
  font-size: 13px;
}
.modal-body pre {
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 10px;
  margin: 0;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.4;
  white-space: pre-wrap;
  word-break: break-all;
}
.modal-close {
  background: none;
  border: none;
  color: var(--dim);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: 0 4px;
}
.modal-close:hover { color: var(--fg); }

/* ---- footer -------------------------------------------------------------- */
.footer {
  margin-top: 24px;
  padding-bottom: 24px;
  color: var(--dim);
  font-size: 12px;
  text-align: center;
  font-family: var(--mono);
}