/* Blue Button — shared design system */
:root {
  --bb-blue: #1565c0;
  --bb-blue-dark: #0d47a1;
  --bb-blue-soft: #e8f0fb;
  --bb-bg: #f5f8fc;
  --bb-surface: #ffffff;
  --bb-border: #dbe4ef;
  --bb-border-strong: #c5d3e8;
  --bb-text: #1a2332;
  --bb-muted: #5b677a;
  --bb-alert: #b71c1c;
  --bb-alert-banner: #c62828;
  --bb-success: #2e7d32;
  --bb-success-soft: #e8f5e9;
  --bb-warning: #e65100;
  --bb-warning-soft: #fff8e1;
  --bb-radius: 12px;
  --bb-radius-sm: 8px;
  --bb-shadow: 0 2px 12px rgba(21, 101, 192, 0.07);
  --bb-shadow-lg: 0 8px 28px rgba(21, 101, 192, 0.11);
  --bb-font: 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--bb-font);
  background: var(--bb-bg);
  color: var(--bb-text);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--bb-blue); }

.main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 20px 48px;
}

.main--narrow { max-width: 960px; }
.main--wide { max-width: 1200px; }

/* Navigation */
.bb-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-bottom: 14px;
  font-size: 14px;
}

.bb-nav a {
  color: var(--bb-blue);
  text-decoration: none;
  font-weight: 600;
}

.bb-nav a:hover { text-decoration: underline; }

/* Page header */
.bb-page-header {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
}

.bb-page-header h1 {
  color: var(--bb-blue);
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.bb-page-header .bb-subtitle {
  color: var(--bb-muted);
  font-size: 15px;
  margin-top: 6px;
  max-width: 52rem;
  line-height: 1.55;
}

.bb-version {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--bb-muted);
  background: var(--bb-blue-soft);
  padding: 3px 10px;
  border-radius: 999px;
  margin-left: 8px;
  vertical-align: middle;
}

/* Cards */
.bb-card {
  background: var(--bb-surface);
  border: 1px solid var(--bb-border);
  border-radius: var(--bb-radius);
  padding: 20px;
  box-shadow: var(--bb-shadow);
}

.bb-card + .bb-card { margin-top: 14px; }

.bb-card h3 {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--bb-muted);
  margin-bottom: 14px;
}

.bb-card.featured {
  border-color: var(--bb-blue);
  box-shadow: var(--bb-shadow-lg);
}

/* Buttons */
.bb-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: none;
  border-radius: var(--bb-radius-sm);
  padding: 10px 16px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.12s, box-shadow 0.15s;
}

.bb-btn:hover { transform: translateY(-1px); }
.bb-btn:active { transform: translateY(0); }

.bb-btn--primary {
  background: var(--bb-blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(21, 101, 192, 0.25);
}

.bb-btn--primary:hover { background: var(--bb-blue-dark); }

.bb-btn--secondary {
  background: var(--bb-blue-soft);
  color: var(--bb-blue);
}

.bb-btn--ghost {
  background: var(--bb-surface);
  color: var(--bb-text);
  border: 1px solid var(--bb-border-strong);
}

.bb-btn--sm { padding: 7px 12px; font-size: 13px; }

.bb-btn.disabled,
.bb-btn:disabled {
  background: #d8e2ef;
  color: #8a96a8;
  pointer-events: none;
  box-shadow: none;
  transform: none;
}

/* Status pill */
.bb-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--bb-border);
  background: var(--bb-surface);
  box-shadow: var(--bb-shadow);
}

.bb-pill__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bb-success);
  flex-shrink: 0;
}

.bb-pill__dot--off { background: #d32f2f; }

/* Toolbar */
.bb-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

/* Grid */
.bb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-top: 20px;
}

.bb-grid--2 {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 16px;
}

@media (max-width: 900px) {
  .bb-grid--2 { grid-template-columns: 1fr; }
}

/* Typography helpers */
.bb-meta { color: var(--bb-muted); font-size: 13px; line-height: 1.55; }
.bb-hint { color: var(--bb-muted); font-size: 14px; line-height: 1.55; margin-bottom: 10px; }

code {
  background: var(--bb-blue-soft);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}

/* Tables */
.bb-table-wrap { overflow: auto; }

table.bb-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.bb-table th,
.bb-table td {
  text-align: left;
  padding: 10px 10px;
  border-bottom: 1px solid var(--bb-border);
  vertical-align: top;
}

.bb-table th {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--bb-muted);
}

.bb-table .mono {
  font-family: Consolas, 'Courier New', monospace;
  font-size: 12px;
}

.bb-empty {
  color: var(--bb-muted);
  font-size: 14px;
  padding: 12px 0;
}

/* State colours */
.state-responding, .state-arrived { color: var(--bb-success); font-weight: 700; }
.state-idle { color: var(--bb-muted); }
.state-alerting, .state-responding-old { color: var(--bb-alert); font-weight: 700; }

.gps-link {
  color: var(--bb-blue);
  text-decoration: none;
  white-space: nowrap;
  font-weight: 600;
}

.gps-link:hover { text-decoration: underline; }

/* Alert banner (dashboard) */
.bb-alert-banner {
  display: none;
  background: linear-gradient(135deg, var(--bb-alert-banner), #8e0000);
  color: #fff;
  border-radius: var(--bb-radius);
  padding: 20px 22px;
  margin-bottom: 18px;
  box-shadow: 0 8px 24px rgba(183, 28, 28, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.bb-alert-banner.show {
  display: block;
  animation: bb-alert-pulse 2.2s ease-in-out infinite;
}

.bb-alert-banner.bb-alert-banner--test {
  background: linear-gradient(135deg, #ffca28, #ffb300);
  color: #1a1a1a;
  box-shadow: 0 8px 24px rgba(255, 193, 7, 0.45);
  animation: none;
  border: 3px solid #212121;
  position: relative;
  overflow: hidden;
}

.bb-alert-banner.bb-alert-banner--test::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 10px,
    rgba(0, 0, 0, 0.06) 10px,
    rgba(0, 0, 0, 0.06) 20px
  );
  pointer-events: none;
}

.bb-alert-banner.bb-alert-banner--test > * {
  position: relative;
  z-index: 1;
}

.bb-alert-banner.bb-alert-banner--test h2,
.bb-alert-banner.bb-alert-banner--test .bb-alert-detail,
.bb-alert-banner.bb-alert-banner--test .bb-alert-meta,
.bb-alert-banner.bb-alert-banner--test a {
  color: #1a1a1a;
  text-shadow: none;
}

.bb-alert-banner.bb-alert-banner--test h2 {
  display: inline-block;
  background: rgba(255, 255, 255, 0.92);
  padding: 6px 12px;
  border-radius: 8px;
  border: 2px solid #212121;
}

.bb-alert-banner.bb-alert-banner--test .bb-alert-detail {
  background: rgba(255, 255, 255, 0.88);
  padding: 10px 12px;
  border-radius: 8px;
  margin-top: 10px;
  font-weight: 600;
}

.bb-alert-banner.bb-alert-banner--test .bb-alert-meta,
.bb-alert-banner.bb-alert-banner--test .escalation {
  background: rgba(255, 255, 255, 0.78);
  padding: 8px 12px;
  border-radius: 8px;
}

.bb-alert-banner h2 {
  font-size: 22px;
  font-weight: 900;
  letter-spacing: 0.04em;
  margin-bottom: 6px;
}

.bb-alert-banner .bb-alert-detail {
  font-size: 15px;
  opacity: 0.95;
  line-height: 1.45;
}

.bb-alert-banner .bb-alert-meta {
  margin-top: 10px;
  font-size: 14px;
  opacity: 0.88;
}

.bb-alert-banner a { color: #fff; font-weight: 700; }

@keyframes bb-alert-pulse {
  0%, 100% { box-shadow: 0 8px 24px rgba(183, 28, 28, 0.35); }
  50% { box-shadow: 0 8px 32px rgba(183, 28, 28, 0.55); }
}

/* Audit log */
.bb-audit {
  max-height: 360px;
  overflow: auto;
  font-size: 13px;
  line-height: 1.5;
}

.bb-audit-item {
  padding: 10px 0;
  border-bottom: 1px solid var(--bb-border);
}

.bb-audit-item strong { color: var(--bb-blue); }

/* Landing page (index.html — body.bb-landing.light; not a fullscreen grid) */
body.bb-landing {
  display: block;
  padding: 0;
}

.bb-landing__wrap {
  max-width: 480px;
  width: 100%;
  text-align: center;
}

.bb-landing__orb {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  background: radial-gradient(circle at 32% 28%, #64b5f6, var(--bb-blue) 62%, var(--bb-blue-dark));
  box-shadow: 0 8px 24px rgba(21, 101, 192, 0.28), inset 0 -3px 10px rgba(0, 0, 0, 0.12);
  border: 2px solid rgba(255, 255, 255, 0.35);
}

.bb-landing h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.bb-landing p {
  line-height: 1.55;
  margin-bottom: 12px;
  font-size: 15px;
}

.bb-landing__hint {
  font-size: 14px !important;
  margin: 0 0 12px !important;
}

.bb-landing__links {
  display: grid;
  gap: 8px;
}

.bb-landing__links a {
  display: block;
  text-decoration: none;
  color: var(--bb-blue);
  background: #fff;
  padding: 12px 18px;
  border-radius: var(--bb-radius);
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(21, 101, 192, 0.1);
  transition: transform 0.12s, box-shadow 0.15s;
}

.bb-landing__links a:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(21, 101, 192, 0.14);
}

.bb-landing__version {
  font-size: 14px;
  margin-bottom: 16px;
}