/* ============================================================================
   Bottom Navigation Bar — mobile only (≤ 768px)
   ============================================================================ */

.bn-bar {
  display: none;
}

@media (max-width: 768px) {
  .bn-bar {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; right: 0;
    z-index: 200;
    background: var(--bg, #fff);
    border-top: 1px solid var(--border, #e2e8f0);
    padding-bottom: env(safe-area-inset-bottom, 0px);
    box-shadow: 0 -4px 24px rgba(0,0,0,.08);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
  }

  .bn-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 8px 4px 6px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--text-3, #94a3b8);
    font-size: 10px;
    font-weight: 500;
    letter-spacing: .01em;
    transition: color .15s;
    -webkit-tap-highlight-color: transparent;
    position: relative;
  }

  .bn-item.on {
    color: #4f46e5;
  }

  .bn-icon {
    font-size: 22px;
    line-height: 1;
    transition: transform .15s;
  }

  .bn-item.on .bn-icon {
    transform: translateY(-1px);
  }

  .bn-badge {
    position: absolute;
    top: 6px; right: calc(50% - 16px);
    background: #ef4444;
    color: #fff;
    font-size: 9px;
    font-weight: 700;
    min-width: 16px;
    height: 16px;
    border-radius: 8px;
    padding: 0 4px;
    display: flex; align-items: center; justify-content: center;
    line-height: 1;
  }

  /* push content up so it's not hidden behind bottom bar */
  body { padding-bottom: calc(64px + env(safe-area-inset-bottom, 0px)); }

  /* hide sidebar on mobile when bottom nav is visible */
  .sidebar { display: none !important; }
}