.app-shell { min-height: 100vh; display: flex; }
.sidebar {
  width: var(--sidebar-width);
  flex: 0 0 var(--sidebar-width);
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  z-index: 30;
  border-right: 1px solid var(--border);
}
.brand-block { padding: 22px 20px; display: flex; align-items: center; gap: 12px; border-bottom: 1px solid var(--border); }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; background: var(--primary); color: #fff; display: grid; place-items: center; box-shadow: var(--shadow-md); }
.brand-title { font-weight: 800; font-size: 18px; letter-spacing: -.02em; }
.brand-subtitle { color: var(--sidebar-muted); font-size: 12px; margin-top: 2px; }
.main-nav { padding: 14px 10px; overflow-y: auto; flex: 1; }
.nav-section { margin: 22px 10px 9px; color: var(--sidebar-muted); text-transform: uppercase; letter-spacing: .1em; font-size: 12px; font-weight: 600; }
.nav-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 11px;
  border-radius: 12px;
  padding: 10px 12px;
  margin: 2px 0;
  color: var(--sidebar-muted);
  background: transparent;
  text-align: left;
  font-weight: 650;
}
.nav-item svg { flex: 0 0 auto; }
.nav-item:hover { background: var(--sidebar-surface); color: var(--sidebar-text); }
.nav-item.active { background: var(--primary-soft); color: var(--primary); box-shadow: inset 3px 0 var(--primary); }
.nav-badge { margin-left: auto; border-radius: 999px; background: rgba(255,255,255,.12); padding: 2px 7px; font-size: 11px; color: currentColor; }
.sidebar-footer { padding: 14px; border-top: 1px solid rgba(255,255,255,.08); }
.operator-card { display: flex; align-items: center; gap: 10px; background: var(--sidebar-surface); padding: 10px; border-radius: 14px; }
.operator-card span { display:block; color: var(--sidebar-muted); font-size: 12px; }
.main-area { min-width: 0; flex: 1; display: flex; flex-direction: column; }
.topbar {
  min-height: var(--topbar-height);
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 24px;
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.topbar-title-wrap { flex: 1; min-width: 0; }
.topbar h1 { margin: 0; font-size: 22px; font-weight:650; line-height: 1.2; letter-spacing: -.025em; }
.topbar p { margin: 3px 0 0; color: var(--text-soft); font-size: 12.5px; }
.topbar-actions { display: flex; gap: 10px; align-items: center; }
.content { padding: 24px; max-width: 1800px; width: 100%; margin: 0 auto; }
.mobile-only { display: none; }
.mobile-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 25; }