/* ====== Global ====== */
.app-body {
  background: #f4f6f9;
  color: #1f2937;
}

/* ====== Top Navbar ====== */
.app-navbar {
  background: linear-gradient(90deg, #0d6efd, #4dabf7);
  color: #fff;
}
.app-navbar .navbar-brand,
.app-navbar .nav-link,
.app-navbar .app-username {
  color: #fff !important;
}
.app-navbar .app-logout {
  border-color: rgba(255,255,255,0.8);
  color: #fff;
}
.app-navbar .app-logout:hover {
  background: rgba(255,255,255,0.15);
}
.brand-logo {
  height: 34px;
  width: auto;
  border-radius: 4px;
  margin-right: .5rem;
}
.app-brand { font-weight: 700; letter-spacing: .2px; }

/* ====== Layout ====== */
.app-layout { padding: 0; }

/* ====== Sidebar ====== */
.app-sidebar {
  background: #ffffff;
  border-right: 1px solid #e5e7eb;
}
.app-sidebar-inner {
  position: sticky;
  top: 0;
  height: calc(100vh - 56px); /* minus navbar height */
  padding-bottom: 1rem;
  overflow-y: auto;
}
.app-sidebar-header {
  padding: 1rem 1.25rem .5rem 1.25rem;
  border-bottom: 1px solid #eef1f4;
}
.app-nav {
  padding: .5rem .5rem 1rem .5rem;
}
.app-nav .nav-link {
  border-radius: .5rem;
  padding: .55rem .85rem;
  margin: .15rem .35rem;
  color: #374151;
  font-weight: 500;
}
.app-nav .nav-link:hover {
  background: #f2f6ff;
  color: #0d6efd;
}
.app-nav .nav-link.active {
  background: #e7f1ff;
  color: #0d6efd;
  border: 1px solid #cfe2ff;
}
.app-nav-section {
  margin: .6rem .85rem .25rem .85rem;
  font-size: .75rem;
  letter-spacing: .02em;
  text-transform: uppercase;
  color: #6b7280;
}

/* ====== Content ====== */
.app-content {
  background: #ffffff;
  min-height: calc(100vh - 56px);
  border-left: 0;
}

/* ====== Footer ====== */
.app-footer {
  border-top: 1px solid #eef1f4;
  padding: .75rem 0;
  background: #fff;
}