/* The frame of the page: the top bar with its tabs and switches, and the content area. */

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 10px 24px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--accent); }
.brand span { color: var(--text); }

.tabs { display: flex; gap: 4px; flex: 1; }
.tabs button {
  background: none;
  border: 0;
  padding: 8px 14px;
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
}
.tabs button:hover { color: var(--text); background: var(--surface); }
.tabs button.active { color: var(--accent); background: var(--accent-soft); }

.badge {
  display: inline-block;
  min-width: 18px;
  padding: 0 6px;
  margin-left: 4px;
  border-radius: 9px;
  background: var(--bad);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  text-align: center;
}

.language { display: inline-flex; background: var(--surface); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.language button { background: none; border: 0; padding: 4px 10px; font-size: 12px; font-weight: 600; cursor: pointer; color: var(--muted); }
.language button:hover { color: var(--text); }
.language button.active { background: var(--accent-soft); color: var(--accent); }

.theme-switch {
  display: inline-grid;
  place-items: center;
  width: 30px;
  height: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
}
.theme-switch:hover { color: var(--accent); border-color: var(--accent); }

.connection { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; }
.connection .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--warn); }
.connection.online .dot { background: var(--good); box-shadow: 0 0 0 0 var(--good); animation: pulse 2s infinite; }
.connection.offline .dot { background: var(--bad); }

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.55); }
  70% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 211, 153, 0); }
}

main { max-width: 1500px; margin: 0 auto; padding: 24px; }

.toolbar { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; flex-wrap: wrap; }
.toolbar h1 { margin: 0; font-size: 20px; flex: 1; }
.heading-note { font-size: 13px; font-weight: 400; }

.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }

@media (max-width: 1000px) {
  .two-columns { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 700px) {
  .topbar { flex-wrap: wrap; gap: 10px 16px; padding: 10px 16px; }
  .tabs { order: 3; flex-basis: 100%; overflow-x: auto; }
  main { padding: 16px; }
}