/* Bottom Navigation */

.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--tg-bg-soft);
  border-top: 1px solid var(--tg-border-soft);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
}

.bottom-nav-inner {
  max-width: 100%;
  margin: 0 auto;
  padding: 8px 16px;
  padding-bottom: calc(8px + env(safe-area-inset-bottom));
  display: flex;
  justify-content: space-around;
  align-items: center;
  gap: 4px;
}

.nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  padding: 8px 4px;
  border: none;
  background: transparent;
  color: var(--tg-text-soft);
  font-size: 11px;
  cursor: pointer;
  border-radius: 12px;
  transition: background 0.12s ease-out, color 0.12s ease-out;
}

.nav-btn .icon {
  font-size: 20px;
}

.nav-btn-active {
  color: var(--tg-accent);
  background: rgba(88, 101, 242, 0.1);
}

.nav-btn:active {
  background: rgba(88, 101, 242, 0.15);
}