/* Keep the controls together and let the square face fill the available viewport. */
.app {
  height: 100dvh;
}
.topbar {
  flex-direction: column;
  align-items: stretch;
  gap: 12px;
}
.clock-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.clock-toolbar .city-selector {
  width: auto;
  min-width: 0;
  flex: 1;
}
.clock-toolbar .zone-button {
  width: 100%;
  height: 42px;
  justify-content: space-between;
  min-width: 0;
}
.clock-toolbar .actions {
  flex: none;
}
.clock-stage {
  min-height: 0;
  padding-block: 12px;
}
.clock-stage .clock-frame {
  flex: none;
  width: min(100%, calc(100dvh - 180px));
}
#clock-stage:fullscreen .clock-frame {
  width: min(100%, calc(100dvh - 4vw));
}
@media (max-width: 600px) {
  .clock-toolbar { gap: 7px; }
  .clock-toolbar .zone-button { height: 38px; }
  .clock-toolbar .actions { gap: 6px; }
}