:root {
  color-scheme: dark;
  --bg: #0f1419;
  --panel: #1a2332;
  --panel2: #131b28;
  --border: #2d3a4f;
  --text: #e8eef7;
  --muted: #8b9cb3;
  --accent: #66a6ff;
  --ok: #3dd68c;
  --warn: #f5a524;
  --err: #f87171;
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

/* `[hidden]` is only a user-agent rule, and ANY author `display` beats it — so
   `.modal { display: flex }` left the overlay permanently on screen, covering
   the page and swallowing every click. Restate it as an author rule so the
   attribute actually hides things. */
[hidden] { display: none !important; }

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

body.centered {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
}

/* ------------------------------------------------------------- header */

header {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.9rem 1.25rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel2);
}

.brand { display: flex; align-items: baseline; gap: 0.6rem; }
header h1 { margin: 0; font-size: 1.2rem; }
header .host { color: var(--muted); font-size: 0.9rem; }
header .spacer { flex: 1; }
.muted { color: var(--muted); font-size: 0.85rem; }

.tabs {
  display: flex;
  gap: 0.5rem;
  padding: 0.7rem 1.25rem;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.tab {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.9rem;
  border-radius: 6px;
  cursor: pointer;
  white-space: nowrap;
}
.tab.active { background: var(--accent); border-color: var(--accent); color: #08111d; font-weight: 600; }

main { padding: 1.1rem 1.25rem 3rem; max-width: 1100px; margin: 0 auto; }
.panel { display: none; }
.panel.active { display: block; }

h2 {
  font-size: 0.85rem;
  color: var(--muted);
  font-weight: 600;
  margin: 1.5rem 0 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ------------------------------------------------------------- pills */

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.pill.ok   { color: var(--ok);   border-color: color-mix(in srgb, var(--ok) 45%, transparent);   background: color-mix(in srgb, var(--ok) 12%, transparent); }
.pill.warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.pill.down { color: var(--err);  border-color: color-mix(in srgb, var(--err) 45%, transparent);  background: color-mix(in srgb, var(--err) 12%, transparent); }
.pill.unknown { color: var(--muted); }

/* ------------------------------------------------------------- cards */

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}

.banner {
  border-radius: 10px;
  padding: 0.7rem 0.95rem;
  margin-bottom: 0.9rem;
  font-size: 0.9rem;
  border: 1px solid color-mix(in srgb, var(--err) 45%, transparent);
  background: color-mix(in srgb, var(--err) 12%, transparent);
  color: var(--err);
}

.service {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.85rem 1rem;
  margin-bottom: 0.7rem;
}
.service.down { border-color: color-mix(in srgb, var(--err) 55%, var(--border)); }
.service.warn { border-color: color-mix(in srgb, var(--warn) 55%, var(--border)); }

.service-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}
.service-name { font-weight: 600; font-size: 1rem; }
.service-desc { color: var(--muted); font-size: 0.82rem; width: 100%; margin-top: -0.2rem; }

.reasons {
  margin: 0.6rem 0 0;
  padding: 0.55rem 0.75rem;
  border-radius: 7px;
  background: var(--panel2);
  border: 1px solid var(--border);
  font-size: 0.86rem;
}
.reasons li { margin: 0.1rem 0; }
.reasons ul { margin: 0; padding-left: 1.1rem; }

.metrics {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-top: 0.6rem;
  font-size: 0.84rem;
  color: var(--muted);
}
.metrics b { color: var(--text); font-weight: 600; }

.service-actions {
  display: flex;
  gap: 0.45rem;
  align-items: center;
  flex-wrap: wrap;
  margin-top: 0.7rem;
}

/* ------------------------------------------------------------- buttons */

.btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.35rem 0.85rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
}
.btn:hover:not(:disabled) { border-color: var(--accent); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #08111d; font-weight: 600; }
.btn.danger { border-color: color-mix(in srgb, var(--err) 60%, transparent); color: var(--err); }
.btn.danger:hover:not(:disabled) { background: color-mix(in srgb, var(--err) 15%, transparent); border-color: var(--err); }
.btn.ghost { color: var(--muted); }

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.82rem;
  color: var(--muted);
  margin-left: auto;
  cursor: pointer;
  user-select: none;
}
.toggle input { accent-color: var(--accent); width: 15px; height: 15px; cursor: pointer; }

/* ------------------------------------------------------------- host */

.grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.tile {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 0.95rem;
}
.tile .label { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
.tile .value { font-size: 1.55rem; font-weight: 600; margin-top: 0.15rem; }
.tile .sub { color: var(--muted); font-size: 0.8rem; }

.disk { margin: 0.6rem 0; }
.disk-head { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.88rem; }
.disk-head .mp { font-weight: 600; }
.disk-head .meta { color: var(--muted); font-size: 0.8rem; }
.bar {
  height: 8px;
  border-radius: 5px;
  background: #0c1119;
  margin-top: 0.3rem;
  overflow: hidden;
  border: 1px solid var(--border);
}
.bar > span { display: block; height: 100%; background: var(--accent); }
.bar > span.warn { background: var(--warn); }
.bar > span.crit { background: var(--err); }

/* ------------------------------------------------------------- charts */

.ranges { float: right; display: inline-flex; gap: 0.3rem; }
.ranges button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  border-radius: 5px;
  padding: 0.1rem 0.5rem;
  font-size: 0.72rem;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
}
.ranges button.active { background: var(--accent); border-color: var(--accent); color: #08111d; }

.charts { display: grid; gap: 0.8rem; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); }

.chart-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.75rem 0.9rem;
}
.chart-card h3 {
  margin: 0 0 0.4rem;
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
/* Charts scale with the card; the viewBox does the work. */
.chart-card svg { width: 100%; height: 150px; display: block; }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  margin-top: 0.4rem;
  font-size: 0.74rem;
  color: var(--muted);
}
.legend span { display: inline-flex; align-items: center; gap: 0.3rem; }
.legend i { width: 9px; height: 9px; border-radius: 2px; display: inline-block; }

/* The shared container legend sits above the charts, so the colour mapping is
   stated once instead of repeated under every card. */
#container-legend { margin: 0 0 0.6rem; }
.ranges.scales { margin-right: 0.4rem; }

/* ------------------------------------------------------------- tables */

table { width: 100%; border-collapse: collapse; font-size: 0.86rem; }
td { padding: 0.4rem 0.55rem; border-bottom: 1px solid var(--border); vertical-align: top; }
tr:last-child td { border-bottom: none; }
td.ts { color: var(--muted); white-space: nowrap; width: 1%; font-variant-numeric: tabular-nums; }
td.who { color: var(--muted); white-space: nowrap; width: 1%; }
.sev-critical { color: var(--err); }
.sev-warning { color: var(--warn); }
.sev-info { color: var(--muted); }

/* ------------------------------------------------------------- modal + toast */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 14, 0.72);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 20;
}
.modal-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  max-width: 440px;
  width: 100%;
}
.modal-box h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
.modal-actions { display: flex; gap: 0.5rem; justify-content: flex-end; margin-top: 1rem; }

.toast {
  position: fixed;
  bottom: 1.2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.88rem;
  z-index: 30;
}
.toast.err { border-color: var(--err); color: var(--err); }
.toast.ok { border-color: var(--ok); color: var(--ok); }

/* ------------------------------------------------------------- login */

.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  width: 100%;
  max-width: 340px;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.login-card h1 { margin: 0; font-size: 1.2rem; }
.login-card p { margin: 0; }
.login-card label { display: flex; flex-direction: column; gap: 0.25rem; font-size: 0.85rem; color: var(--muted); }
.login-card input {
  background: var(--panel2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 0.5rem 0.6rem;
  font-size: 0.95rem;
}
.login-card input:focus { outline: none; border-color: var(--accent); }
.error { color: var(--err); font-size: 0.85rem; }

@media (max-width: 560px) {
  .metrics { gap: 0.75rem; }
  .toggle { margin-left: 0; width: 100%; }
}