:root {
  --app-topbar-base-height: 64px;
  --app-topbar-title-size: 18px;
  --app-topbar-bg: #05070A;
  --app-topbar-fg: #F7FBFF;
  --app-topbar-gold: var(--app-topbar-fg);
  --app-topbar-blue-glow: rgba(92, 190, 255, 0.72);
  --app-topbar-blue-glow-soft: rgba(72, 145, 255, 0.34);
}

.topbar {
  width: 100%;
  min-height: calc(var(--app-topbar-base-height) + env(safe-area-inset-top));
  margin: 0 0 14px;
  padding: calc(10px + env(safe-area-inset-top)) 0 10px;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: minmax(44px, 1fr) minmax(0, auto) minmax(44px, 1fr);
  align-items: center;
  gap: 8px;
}

.topbar-slot .topbar {
  height: calc(var(--app-topbar-base-height) + env(safe-area-inset-top));
  min-height: calc(var(--app-topbar-base-height) + env(safe-area-inset-top));
  max-height: calc(var(--app-topbar-base-height) + env(safe-area-inset-top));
  margin: 0;
  padding-top: env(safe-area-inset-top);
  padding-bottom: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.topbar__left,
.topbar__center,
.topbar__right {
  min-width: 0;
  display: flex;
  align-items: center;
}

.topbar__left { width: 100%; justify-content: flex-start; gap: 8px; }
.topbar__center { justify-content: center; overflow: hidden; text-align: center; }
.topbar__right { width: 100%; justify-content: flex-end; gap: 8px; }

.topbar__title {
  margin: 0;
  min-width: 0;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-main);
  font-size: var(--app-topbar-title-size);
  font-weight: 700;
  line-height: 22px;
  letter-spacing: 0;
  color: var(--app-topbar-fg);
  text-align: center;
  text-shadow: 0 0 5px var(--app-topbar-blue-glow), 0 0 14px var(--app-topbar-blue-glow-soft);
}

.topbar__left-label {
  display: inline-block;
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
  color: #a8bcdf;
}

.topbar__back {
  width: 40px;
  height: 40px;
  min-width: 40px;
  min-height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-main);
  font-size: 24px;
  line-height: 1;
  font-weight: 500;
}

.topbar-slot .topbar__action,
.topbar-slot .topbar__back {
  min-height: 40px;
  height: 40px;
  color: var(--app-topbar-fg);
  text-shadow: 0 0 5px var(--app-topbar-blue-glow), 0 0 12px var(--app-topbar-blue-glow-soft);
}

.topbar-slot .topbar__action svg,
.topbar-slot .topbar__back svg {
  filter: drop-shadow(0 0 3px var(--app-topbar-blue-glow)) drop-shadow(0 0 7px var(--app-topbar-blue-glow-soft));
}

.topbar--profile .topbar__left { visibility: hidden; }

@media (prefers-reduced-motion: reduce) {
  .topbar__action,
  .topbar__back { transition: none; }
}

/* Custom center content used by chat/channel/list screens still follows the same TopBar rhythm. */
.topbar-slot {
  padding: 0 12px;
  background: var(--app-topbar-bg);
}

.topbar__center .app-topbar-title-action,
.topbar__center .channels-top-title,
.topbar__center .dm-head-filter-title {
  margin: 0;
  min-width: 0;
  max-width: 100%;
  min-height: 40px;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: var(--font-main);
  font-size: var(--app-topbar-title-size);
  font-weight: 700;
  line-height: 22px;
  text-align: center;
}

.topbar__center .app-topbar-title-action::before,
.topbar__center .app-topbar-title-action::after,
.topbar__center .channels-top-title::before,
.topbar__center .channels-top-title::after,
.topbar__center .dm-head-filter-title::before,
.topbar__center .dm-head-filter-title::after {
  background: transparent;
  background-image: none;
  border-color: transparent;
  box-shadow: none;
}

.topbar-slot .topbar__center button,
.topbar-slot .topbar__center button:hover,
.topbar-slot .topbar__center button:focus,
.topbar-slot .topbar__center button:active,
.topbar-slot .topbar__center button:focus-visible {
  color: #f7fbff;
  background: transparent;
  background-image: none;
  border: 0;
  box-shadow: none;
  text-shadow:
    0 0 5px rgba(92, 190, 255, 0.72),
    0 0 12px rgba(72, 145, 255, 0.34);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  filter: drop-shadow(0 0 4px rgba(92, 190, 255, 0.56));
}

.topbar-slot .topbar__center button::before,
.topbar-slot .topbar__center button::after {
  background: transparent;
  background-image: none;
  border-color: transparent;
  box-shadow: none;
}

/* TopBar owns its button interaction states. */

.topbar-slot .topbar__action,
.topbar-slot .topbar__back {
  filter: drop-shadow(0 0 4px rgba(92, 190, 255, 0.56));
}

.topbar-slot .topbar__action:active,
.topbar-slot .topbar__back:active,
.topbar-slot .topbar__center button:active {
  background: rgba(0, 0, 0, 0.12);
  box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.58), inset 0 -1px 2px rgba(255, 255, 255, 0.08);
  transform: translateY(1px) scale(0.97);
}

.topbar-slot .topbar__action:focus-visible,
.topbar-slot .topbar__back:focus-visible,
.topbar-slot .topbar__center button:focus-visible {
  color: #ffffff;
  outline: none;
  filter: drop-shadow(0 0 5px rgba(110, 205, 255, 0.82)) drop-shadow(0 0 10px rgba(72, 145, 255, 0.42));
}

.topbar-slot .topbar__action[aria-expanded='true'],
.topbar-slot .topbar__action[data-open='true'],
.topbar-slot .topbar__center button[aria-expanded='true'],
.topbar-slot .topbar__center button[data-open='true'] {
  background: rgba(0, 0, 0, 0.16);
  box-shadow: inset 0 3px 8px rgba(0, 0, 0, 0.58), inset 0 -1px 2px rgba(255, 255, 255, 0.08);
  transform: translateY(1px) scale(0.97);
  filter: brightness(0.9);
}

/* Migrated from legacy components.css during Stage 3 ownership split. */
.header-icon-svg {
  display: block;
  width: 1em;
  height: 1em;
}


.header-icon-svg--phone,
.header-icon-svg--search {
  width: 22px;
  height: 22px;
}