:root {
  --iwa-primary: #1565c0;
  --iwa-primary-600: #0d47a1;
  --iwa-primary-100: #e3f2fd;
  --iwa-bg: #f5f7fb;
  --iwa-sidebar: #404ecf; /* purple-blue */
  --iwa-sidebar-ink: #cbd6ff;
  --iwa-sidebar-hover: rgba(255,255,255,.08);
  --iwa-accent: #ffca28; /* highlight */
}

:root, [data-bs-theme=light] {
  --bs-primary: var(--iwa-primary);
  --bs-link-color: var(--iwa-primary);
}

body { background-color: var(--iwa-bg); }

.iwa-shell {
  display: grid;
  grid-template-columns: 270px 1fr;
  grid-template-rows: 56px auto;
  grid-template-areas:
    "sidebar topbar"
    "sidebar main";
  min-height: 100vh;
}

@media (max-width: 991.98px) {
  .iwa-shell {
    grid-template-columns: 1fr;
    grid-template-rows: 56px auto auto;
    grid-template-areas:
      "topbar"
      "sidebar"
      "main";
  }
}

.iwa-topbar { grid-area: topbar; background: #fff; color: #1f2937; border-bottom: 1px solid #e5e7eb; }

.iwa-sidebar { grid-area: sidebar; background: var(--iwa-sidebar); color: #fff; padding: .75rem; }

.iwa-main {
  grid-area: main;
  padding: 1rem;
}

.iwa-brand { font-weight: 700; color: #1f2937; text-decoration: none; }
.iwa-brand .muted { color: #6b7280; font-weight: 500; font-size: .9rem; }

.iwa-nav .nav-link {
  color: var(--iwa-sidebar-ink);
  border-radius: .375rem;
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .5rem .75rem;
}

.iwa-nav .nav-link .bi { font-size: 1.1rem; }
.iwa-nav .nav-link:hover { background: var(--iwa-sidebar-hover); color: #fff; }
.iwa-nav .nav-link.active { background: var(--iwa-accent); color: #111827; }
.iwa-nav .nav-link.active .bi { color: #111827; }

.iwa-section {
  font-size: .75rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #7fa6c6;
  padding: .5rem .75rem .25rem;
}

.iwa-top-actions .btn, .iwa-top-actions .dropdown-toggle { color: #fff; }

/* Topbar avatar */
.iwa-avatar { width: 36px; height: 36px; border-radius: 50%; background: #5c6bc0; color: #fff; display: inline-flex; align-items: center; justify-content: center; font-weight: 700; }

/* Sidebar brand inline with menu */
.iwa-brand-side { display:flex; align-items:center; gap:.5rem; padding:.5rem .75rem; margin-bottom:.25rem; color:#fff; font-weight:800; font-size: 1.15rem; }
.iwa-brand-side .bi { color: var(--iwa-accent); font-size:1.25rem; }
.iwa-brand-side:hover { color:#fff; text-decoration:none; }