/* Sentinel — restrained Bootstrap-based UI.
   No neon, no glow, no Space-Mono-everywhere. Inter for prose,
   JetBrains Mono only where the content is genuinely a token
   (IPs, hashes, counts). */

:root {
  --bs-body-font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --bs-font-monospace: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
}

[data-bs-theme="light"] {
  --bs-body-bg: #f7f8fa;
  --bs-body-color: #1f2328;
  --bs-secondary-bg: #ffffff;
  --bs-tertiary-bg: #f0f2f5;
  --bs-border-color: #e1e4e8;
  --bs-secondary-color: #57606a;
  --bs-emphasis-color: #1f2328;
}

[data-bs-theme="dark"] {
  --bs-body-bg: #0f1115;
  --bs-body-color: #d6deea;
  --bs-secondary-bg: #161a21;
  --bs-tertiary-bg: #1c2129;
  --bs-border-color: #232830;
  --bs-secondary-color: #8c96a4;
  --bs-emphasis-color: #f0f4fa;
}

body {
  font-feature-settings: 'cv11', 'ss01';
  letter-spacing: -0.005em;
}

/* Navbar — single thin line below, no shadow or glow */
.navbar.app-nav {
  background-color: var(--bs-secondary-bg);
  border-bottom: 1px solid var(--bs-border-color);
  padding: 0.55rem 0;
}
.navbar.app-nav .navbar-brand {
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--bs-emphasis-color);
}
.navbar.app-nav .nav-link {
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
  padding-left: 0.85rem;
  padding-right: 0.85rem;
}
.navbar.app-nav .nav-link.active,
.navbar.app-nav .nav-link:hover {
  color: var(--bs-emphasis-color);
}
.navbar.app-nav .nav-link.active {
  font-weight: 500;
}

/* Page surface */
main.container-app {
  padding-top: 1.75rem;
  padding-bottom: 4rem;
  max-width: 1280px;
}
h1.page-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 0 0 0.25rem 0;
  letter-spacing: -0.02em;
}
.page-subtitle {
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

/* Card override — flat, no shadow */
.card {
  background-color: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
}
.card-header {
  background-color: transparent;
  border-bottom: 1px solid var(--bs-border-color);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.card-header h2 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.01em;
}
.card-header .card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* KPI tile */
.stat-tile {
  background-color: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.5rem;
  padding: 1rem 1.1rem;
}
.stat-tile .stat-label {
  color: var(--bs-secondary-color);
  font-size: 0.78rem;
  margin: 0;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}
.stat-tile .stat-value {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--bs-emphasis-color);
  margin: 0.2rem 0 0.1rem;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  font-family: var(--bs-font-monospace);
}
.stat-tile .stat-sub {
  color: var(--bs-secondary-color);
  font-size: 0.78rem;
}

/* Tables */
.table {
  --bs-table-bg: transparent;
  margin: 0;
  font-size: 0.875rem;
}
.table thead th {
  font-weight: 500;
  color: var(--bs-secondary-color);
  font-size: 0.78rem;
  border-bottom: 1px solid var(--bs-border-color);
  padding: 0.6rem 0.85rem;
  background: transparent;
}
.table tbody td {
  padding: 0.65rem 0.85rem;
  border-color: var(--bs-border-color);
  vertical-align: middle;
}
.mono {
  font-family: var(--bs-font-monospace);
  font-size: 0.85em;
}
.muted {
  color: var(--bs-secondary-color);
  font-size: 0.85em;
}

/* Pill badges */
.badge.role-admin { background-color: rgba(13, 110, 253, 0.12); color: #0d6efd; }
.badge.role-viewer { background-color: rgba(108, 117, 125, 0.15); color: var(--bs-secondary-color); }
.badge.status-online::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  background: #2da44e; border-radius: 50%; margin-right: 5px; vertical-align: middle;
}
.badge.status-offline::before {
  content: ""; display: inline-block; width: 6px; height: 6px;
  background: #cf222e; border-radius: 50%; margin-right: 5px; vertical-align: middle;
}
.badge.scenario {
  background-color: var(--bs-tertiary-bg);
  color: var(--bs-emphasis-color);
  font-weight: 500;
  font-family: var(--bs-font-monospace);
  font-size: 0.72em;
}

/* Fleet list (sidebar) */
.fleet-list .fleet-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.85rem;
  border: none;
  border-bottom: 1px solid var(--bs-border-color);
  background: transparent;
  width: 100%;
  text-align: left;
  color: var(--bs-body-color);
  text-decoration: none;
  font-size: 0.9rem;
  cursor: pointer;
}
.fleet-list .fleet-item:last-child { border-bottom: none; }
.fleet-list .fleet-item:hover { background: var(--bs-tertiary-bg); }
/* Online/offline status dot — bare green/red circle, no pill. */
.fleet-dot { flex: 0 0 auto; width: 9px; height: 9px; border-radius: 50%; display: inline-block; }
.fleet-dot.on { background: #2da44e; box-shadow: 0 0 0 3px rgba(45, 164, 78, 0.18); }
.fleet-dot.off { background: #cf222e; box-shadow: 0 0 0 3px rgba(207, 34, 46, 0.18); }
.fleet-list .fleet-item .caps { color: var(--bs-secondary-color); font-size: 0.78rem; margin-left: auto; }

/* Login / signup card */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}
.auth-card {
  background-color: var(--bs-secondary-bg);
  border: 1px solid var(--bs-border-color);
  border-radius: 0.6rem;
  padding: 2rem;
  max-width: 380px;
  width: 100%;
}

/* Timeline canvas — must fill its card without growing past it. */
canvas#timeline { display: block; width: 100% !important; max-width: 100%; height: 180px; }

/* Histogram bars (lightweight, replaces canvas where appropriate) */
.bar-row { display: flex; align-items: center; gap: 0.6rem; padding: 0.4rem 0; }
.bar-row .bar-label { flex: 0 0 30%; font-size: 0.85rem; }
.bar-row .bar-track {
  flex: 1; height: 6px; background: var(--bs-tertiary-bg); border-radius: 3px; overflow: hidden;
}
.bar-row .bar-fill { height: 100%; background: #0d6efd; }
.bar-row .bar-count { font-size: 0.8rem; color: var(--bs-secondary-color); font-variant-numeric: tabular-nums; min-width: 36px; text-align: right; font-family: var(--bs-font-monospace); }

/* Theme toggle button */
.theme-toggle { border: none; background: transparent; color: var(--bs-secondary-color); font-size: 1rem; padding: 0.35rem 0.55rem; border-radius: 6px; }
.theme-toggle:hover { background: var(--bs-tertiary-bg); color: var(--bs-emphasis-color); }

/* Settings page section spacing */
.settings-grid { display: grid; gap: 1rem; }
@media (min-width: 768px) {
  .settings-grid.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}