/* ── Layout ──────────────────────────────────────────────────────────────── */
.layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-w);
  background: var(--bg-2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 100;
  transition: transform 0.25s ease;
}

.main { margin-left: var(--sidebar-w); flex: 1; min-height: 100vh; }
.main-inner { padding: 2rem; max-width: 1200px; }

/* ── Sidebar header ──────────────────────────────────────────────────────── */
.sb-header {
  padding: 1.25rem 1rem 1rem;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sb-logo { display: flex; align-items: center; gap: 0.6rem; }
.sb-logo-icon {
  width: 32px; height: 32px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-glow);
  border-radius: 8px;
  display: grid; place-items: center;
  color: var(--accent);
  flex-shrink: 0;
}
.sb-logo-text { font-weight: 600; font-size: 0.875rem; color: var(--text); }
.sb-logo-sub  { font-size: 0.65rem; color: var(--text-3); font-family: ui-monospace, monospace; }

/* ── Nav ──────────────────────────────────────────────────────────────────── */
.nav { padding: 0.75rem 0.5rem; flex: 1; overflow-y: auto; }
.nav-section { font-size: 0.6rem; font-weight: 600; color: var(--text-3); text-transform: uppercase; letter-spacing: .08em; padding: 0.75rem 0.6rem 0.35rem; }

.nav-item {
  display: flex; align-items: center; gap: 0.625rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-2);
  cursor: pointer;
  transition: all 0.15s;
  margin-bottom: 2px;
  position: relative;
}
.nav-item svg { width: 1rem; height: 1rem; flex-shrink: 0; }
.nav-item:hover { background: var(--bg-4); color: var(--text); }
.nav-item.active {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid var(--accent-glow);
}
.nav-item .badge-count {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 0.6rem;
  font-weight: 700;
  padding: 1px 5px;
  border-radius: 99px;
  line-height: 1.4;
}

/* ── Sidebar footer ──────────────────────────────────────────────────────── */
.sb-footer { padding: 0.75rem; border-top: 1px solid var(--border); }
.sb-metrics { margin-bottom: 0.875rem; display: flex; flex-direction: column; gap: 0.5rem; }
.sb-metric-row { display: flex; justify-content: space-between; align-items: center; }
.sb-metric-label { font-size: 0.7rem; color: var(--text-3); }
.sb-metric-val   { font-size: 0.7rem; color: var(--text-2); font-variant-numeric: tabular-nums; }

/* ── Top bar ──────────────────────────────────────────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  backdrop-filter: blur(8px);
}
.topbar-left { display: flex; align-items: center; gap: 0.75rem; }
.topbar-title { font-weight: 600; font-size: 1rem; color: var(--text); }
.topbar-sub   { font-size: 0.75rem; color: var(--text-3); }
.topbar-right { display: flex; align-items: center; gap: 0.5rem; }

/* hamburger — hidden on desktop */
.hamburger { display: none; }

/* ── Mobile bottom nav ─────────────────────────────────────────────────────── */
.bottom-nav { display: none; }

/* ── Overlay (mobile sidebar) ────────────────────────────────────────────── */
.overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,.55);
  z-index: 90;
}

/* ── Section heading ──────────────────────────────────────────────────────── */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.page-title  { font-size: 1.125rem; font-weight: 700; color: var(--text); }
.page-sub    { font-size: 0.775rem; color: var(--text-3); margin-top: 0.2rem; }

/* ── Responsive ───────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --sidebar-w: 0px; }

  .sidebar {
    width: 260px;
    transform: translateX(-100%);
  }
  .sidebar.open { transform: translateX(0); }
  .overlay { display: block; }
  .main { margin-left: 0; }
  .main-inner { padding: 1rem; }
  .topbar { padding: 0.75rem 1rem; }
  .hamburger { display: grid; place-items: center; }

  .metric-grid { grid-template-columns: 1fr 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .col-span-2 { grid-column: span 1; }

  .bottom-nav {
    display: flex;
    position: fixed; bottom: 0; left: 0; right: 0;
    background: var(--bg-2);
    border-top: 1px solid var(--border);
    z-index: 80;
    padding-bottom: env(safe-area-inset-bottom);
  }
  .bn-item {
    flex: 1; display: flex; flex-direction: column; align-items: center;
    padding: 0.5rem 0.25rem 0.35rem;
    font-size: 0.6rem; color: var(--text-3);
    cursor: pointer; gap: 0.2rem; transition: color 0.15s;
  }
  .bn-item svg { width: 1.125rem; height: 1.125rem; }
  .bn-item.active { color: var(--accent); }
  .bn-item:hover  { color: var(--text); }

  .main { padding-bottom: 68px; }

  /* swap table → card rows for PM2 & Nginx */
  .proc-thead     { display: none !important; }
  .proc-table-row { display: none !important; }
  .proc-card      { display: block; }

  /* hide secondary columns in overview tables */
  .ov-hide { display: none !important; }

  /* page header stacks vertically, action row full-width */
  .page-header { flex-direction: column; align-items: flex-start; }
  .page-header > .flex { width: 100%; justify-content: flex-end; flex-wrap: wrap; }
}

@media (max-width: 480px) {
  .metric-grid { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}