/* ============================================================
   Dashboard Layout — Light Theme
   CSS Grid layout with sticky header and sidebar.
   ============================================================ */

.dashboard-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  grid-template-rows: var(--header-height) 1fr;
  min-height: 100vh;
  background-color: var(--color-bg);
}

.dashboard-header {
  grid-column: 1 / -1;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0 var(--space-5);
}

.dashboard-sidebar {
  background-color: var(--sidebar-bg);
  border-right: 1px solid var(--color-border);
  overflow-y: auto;
  position: sticky;
  top: var(--header-height);
  height: calc(100vh - var(--header-height));
}

.dashboard-main {
  padding: var(--space-7);
  overflow-y: auto;
  min-width: 0; /* Prevent grid blowout */
}

/* Collapsible sidebar */
.dashboard-layout.sidebar-collapsed {
  grid-template-columns: 60px 1fr;
}

/* ── Mobile ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .dashboard-layout {
    grid-template-columns: 1fr;
  }

  .dashboard-sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    z-index: 90;
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
    box-shadow: var(--shadow-lg);
  }

  .dashboard-sidebar.open {
    transform: translateX(0);
  }

  .dashboard-main {
    padding: var(--space-5);
  }
}

/* ── Print ───────────────────────────────────────────────── */
@media print {
  .dashboard-sidebar, .dashboard-header {
    display: none !important;
  }

  .dashboard-layout {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
  }

  .dashboard-main {
    padding: 0;
  }
}