/* Blockwave Router — App shell (landing 분리, 모바일) */

.app-topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.app-home-link {
  color: var(--bw-text-muted);
  text-decoration: none;
  font-size: 0.8125rem;
  font-weight: 600;
}

.app-home-link:hover {
  color: var(--bw-primary);
}

.app-brand-bar {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.app-brand-bar .logo-sub {
  font-size: 0.65rem;
  color: var(--bw-text-dim);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#app {
  --bg: var(--bw-bg);
  --bg-secondary: var(--bw-bg-elevated);
  --bg-card: var(--bw-bg-surface);
  --bg-hover: var(--bw-bg-muted);
  --border: var(--bw-border);
  --text: var(--bw-text);
  --text-muted: var(--bw-text-muted);
  --text-dim: var(--bw-text-dim);
  --accent: var(--bw-primary);
  --accent-hover: var(--bw-primary-hover);
  --sans: var(--bw-font-sans);
  --mono: var(--bw-font-mono);
}

.sidebar-overlay {
  display: none;
}

@media (max-width: 900px) {
  #app {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(280px, 85vw);
    z-index: var(--bw-z-nav);
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .sidebar-overlay.is-visible {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(5, 8, 20, 0.6);
    z-index: calc(var(--bw-z-nav) - 1);
  }

  .topbar {
    flex-wrap: wrap;
    gap: 0.75rem;
  }

  .mobile-nav-toggle {
    display: inline-flex;
  }
}

.mobile-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
}