.app-shell { min-height: 100vh; }
.sidebar {
  position: fixed;
  inset: 0 0 0 auto;
  width: var(--sidebar-w);
  z-index: 40;
  padding: 20px 14px;
  background: var(--bg-main);
  border-left: 1px solid rgba(23,32,51,.045);
  display: flex;
  flex-direction: column;
}
.brand {
  height: 54px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  margin-bottom: 18px;
}
.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--surface);
  color: var(--primary);
  box-shadow: var(--shadow-out);
  font-size: 17px;
  font-weight: 700;
}
.brand-copy strong { display: block; font-size: 15px; line-height: 1.1; }
.brand-copy span { color: var(--text-soft); font-size: 10px; }
.nav { display: grid; gap: 5px; }
.nav-item {
  min-height: 44px;
  padding: 0 12px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--text-secondary);
  font-weight: 500;
}
.nav-item svg { width: 19px; height: 19px; stroke-width: 1.7; }
.nav-item:hover { color: var(--text-primary); background: rgba(255,255,255,.34); }
.nav-item.active { color: var(--primary); background: var(--primary-soft); font-weight: 600; }
.sidebar-footer { margin-top: auto; display: grid; gap: 6px; }

.main-shell { margin-right: var(--sidebar-w); min-height: 100vh; }
.topbar {
  height: var(--header-h);
  position: sticky;
  top: 0;
  z-index: 25;
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  background: rgba(243,246,251,.88);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(23,32,51,.035);
}
.topbar-title h1 { margin: 0; font-size: 20px; line-height: 1.3; }
.topbar-title p { margin: 3px 0 0; color: var(--text-secondary); font-size: 11px; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }
.search-box {
  width: 280px;
  min-height: 42px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 13px;
  border-radius: 13px;
  background: var(--surface);
  box-shadow: var(--shadow-in);
  border: 1px solid rgba(23,32,51,.03);
}
.search-box input { width: 100%; border: 0; outline: 0; background: transparent; min-width: 0; }
.search-box svg { width: 17px; height: 17px; color: var(--text-soft); }
.quick-wrap { position: relative; }
.profile {
  min-height: 42px;
  padding: 0 7px 0 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 14px;
  color: var(--text-primary);
}
.avatar {
  width: 31px;
  height: 31px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 700;
}
.content { max-width: var(--content-max); margin: 0 auto; padding: 28px; }
.mobile-nav { display: none; }
.mobile-menu-btn { display: none; }
.overlay { display: none; }