:root {
  --fb-ink: #182522;
  --fb-muted: #5f6f6b;
  --fb-line: #d8e3df;
  --fb-primary: #1b7b6f;
  --fb-warn: #9a5b00;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

body {
  margin: 0;
  color: var(--fb-ink);
  background: #f7faf9;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.app-shell {
  width: min(100%, 760px);
  min-height: 100dvh;
  margin: 0 auto;
  background: #fff;
  border-left: 1px solid var(--fb-line);
  border-right: 1px solid var(--fb-line);
}

.view {
  padding: max(24px, env(safe-area-inset-top)) 18px calc(24px + var(--safe-bottom));
}

.brand-block {
  padding: 28px 0 18px;
}

.brand-block h1,
.topbar h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand-block p,
.topbar p,
.action-card p {
  color: var(--fb-muted);
  margin: 6px 0 0;
}

.app-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 14px;
}

.stack-form {
  display: grid;
  gap: 10px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 16px;
}

.mobile-tabs {
  position: sticky;
  top: 0;
  z-index: 10;
  background: #fff;
  padding: 8px 0 12px;
}

.tab-panel {
  padding-top: 12px;
}

.control-row,
.inline-form {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
  align-items: center;
}

.inline-form {
  grid-template-columns: 1fr auto;
}

.status-banner {
  min-height: 44px;
  padding: 10px 0;
  color: var(--fb-muted);
  font-weight: 650;
}

.status-banner.warn {
  color: var(--fb-warn);
}

.map {
  height: min(58dvh, 520px);
  min-height: 360px;
  border: 1px solid var(--fb-line);
  border-radius: 8px;
  overflow: hidden;
  background: #eef4f2;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin: 16px 0 0;
  background: var(--fb-line);
  border: 1px solid var(--fb-line);
  border-radius: 8px;
  overflow: hidden;
}

.info-grid div {
  background: #fff;
  padding: 12px;
  min-width: 0;
}

.info-grid dt {
  color: var(--fb-muted);
  font-size: 12px;
  font-weight: 700;
}

.info-grid dd {
  margin: 4px 0 0;
  overflow-wrap: anywhere;
}

.action-card {
  border: 1px solid var(--fb-line);
  border-radius: 8px;
  padding: 16px;
  margin-top: 14px;
}

.action-card h2 {
  font-size: 18px;
  margin: 0;
}

.pairing-code {
  margin-top: 12px;
  font-size: 30px;
  font-weight: 800;
  text-align: center;
  letter-spacing: 0;
}

.btn {
  min-height: 44px;
}

.device-section {
  padding: 20px 0;
  margin-top: 14px;
  border-top: 1px solid var(--fb-line);
}

.device-section h2 { font-size: 18px; margin: 0 0 12px; }
.device-section h3 { font-size: 16px; margin: 18px 0 8px; }
.device-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.device-heading h2 { margin: 0; }
.device-section p, .device-empty { color: var(--fb-muted); }
.pairing-expiry { min-height: 24px; text-align: center; overflow-wrap: anywhere; }
.device-row { border-bottom: 1px solid var(--fb-line); padding: 12px 0; }
.device-row-header { display: flex; gap: 12px; align-items: center; justify-content: space-between; }
.device-row-header strong { min-width: 0; overflow-wrap: anywhere; }
.device-row-header .btn { flex-shrink: 0; }
.device-row dl { display: grid; grid-template-columns: 100px minmax(0, 1fr); gap: 4px 12px; font-size: 14px; margin: 10px 0 0; }
.device-row dt { color: var(--fb-muted); font-weight: 500; }
.device-row dd { margin: 0; overflow-wrap: anywhere; }
.device-revoked { color: var(--fb-muted); }
.topbar > div { min-width: 0; }
.topbar p { overflow-wrap: anywhere; }

.btn-primary {
  --bs-btn-bg: var(--fb-primary);
  --bs-btn-border-color: var(--fb-primary);
  --bs-btn-hover-bg: #176b61;
  --bs-btn-hover-border-color: #176b61;
}

@media (max-width: 430px) {
  .control-row {
    grid-template-columns: 1fr 88px;
  }

  #refreshButton {
    grid-column: 1 / -1;
  }

  .info-grid {
    grid-template-columns: 1fr;
  }
}