/* Channels MVP: isolated from conversations, public alerts and SOS. */
.channels-panel,
.channels-browser {
  flex: 1;
  min-height: 0;
  min-width: 0;
}

.channels-browser {
  display: grid;
  grid-template-columns: minmax(19rem, 24rem) minmax(0, 1fr);
  gap: 0.75rem;
}

.channels-sidebar,
.channels-feed-host {
  min-width: 0;
  min-height: 0;
  overflow: hidden;
}

.channels-sidebar {
  display: flex;
  flex-direction: column;
  padding: 0.85rem;
  gap: 0.65rem;
}

.channels-heading h2,
.channel-feed__header h2 {
  font-size: 1.05rem;
}

.channels-heading p:last-child,
.channel-feed__header p,
.channels-reference-note {
  color: var(--text-secondary);
  font-size: 0.78rem;
  line-height: 1.4;
}

.channels-search input {
  width: 100%;
}

.channels-reference-note {
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: var(--surface-muted);
}

.channels-groups,
.channel-list,
.channel-group {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.channels-groups {
  gap: 0.8rem;
  overflow-y: auto;
}

.channel-group,
.channel-list {
  gap: 0.4rem;
}

.channel-group h3 {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.channel-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--border-subtle);
  border-radius: 10px;
  background: var(--surface-elevated);
  padding: 0.35rem;
}

.channel-card.is-active {
  border-color: var(--brand-orange-500);
  box-shadow: inset 3px 0 0 var(--brand-orange-500);
}

.channel-card__open {
  display: grid;
  grid-template-columns: 2.4rem minmax(0, 1fr);
  gap: 0.55rem;
  align-items: center;
  min-width: 0;
  padding: 0.25rem;
  border: 0;
  background: transparent;
  color: var(--text-primary);
  text-align: left;
  cursor: pointer;
}

.channel-avatar {
  width: 2.4rem;
  height: 2.4rem;
  display: inline-grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--brand-navy-800);
  color: #fff;
  border: 1px solid var(--border-accent);
  font-size: 0.72rem;
  font-weight: 800;
}

.channel-card__copy {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.channel-card__copy strong,
.channel-card__copy small,
.channel-card__copy > span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.channel-card__copy strong { font-size: 0.82rem; }
.channel-card__copy small { color: var(--text-muted); font-size: 0.69rem; }
.channel-card__copy > span { color: var(--text-secondary); font-size: 0.73rem; }
.channel-follow { min-height: 2rem; padding: 0.25rem 0.5rem; font-size: 0.72rem; }

.channels-feed-host,
.channel-feed {
  display: flex;
  flex-direction: column;
}

.channel-feed { height: 100%; }
.channel-feed--empty { align-items: center; justify-content: center; padding: 1.5rem; text-align: center; }

.channel-feed__header {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border-default);
  background: var(--surface-elevated);
}

.channel-feed__posts {
  flex: 1;
  overflow-y: auto;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.channel-post { padding: 0.8rem; }
.channel-post p { margin: 0.45rem 0; line-height: 1.45; overflow-wrap: anywhere; }
.channel-post small { color: var(--text-muted); }
.channel-post__meta { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; color: var(--text-muted); font-size: 0.72rem; }
.channel-post__meta time { margin-left: auto; }
.channel-simulation { color: var(--warning); }
.channels-empty { margin: auto; text-align: center; max-width: 28rem; }
.channels-empty p { color: var(--text-secondary); }
.channel-back { display: none; }

@media (max-width: 900px) {
  .channels-browser { grid-template-columns: minmax(0, 1fr); }
  .channels-browser.is-list-mobile .channels-feed-host,
  .channels-browser.is-feed-mobile .channels-sidebar { display: none; }
  .channel-back { display: inline-flex; }
  .channels-sidebar,
  .channels-feed-host { height: 100%; }
}

@media (max-width: 390px) {
  .channel-card { grid-template-columns: minmax(0, 1fr); }
  .channel-follow { width: 100%; }
  .channels-sidebar { padding: 0.65rem; }
}