/* ==========================================================================
   Platinum Age PM — Administrator layout
   Sticky header + persistent left sidebar + full-width workspace.
   ========================================================================== */

.layout-admin {
  min-height: 100vh;
}

.layout-admin .app-header-inner {
  padding: 0 var(--sp-5);
}

.admin-header-right {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  margin-left: auto;
}

.admin-body {
  display: flex;
  align-items: stretch;
  min-height: calc(100vh - var(--header-height));
}

/* ---------- Sidebar ------------------------------------------------------ */
.app-sidebar {
  position: sticky;
  top: var(--header-height);
  align-self: flex-start;
  flex-shrink: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  overflow-y: auto;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-default);
  padding: var(--sp-5) var(--sp-3) var(--sp-8);
}

.sidebar-group + .sidebar-group {
  margin-top: var(--sp-5);
}

.sidebar-heading {
  display: block;
  padding: 0 var(--sp-3);
  margin-bottom: var(--sp-2);
  font-size: 0.625rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) var(--sp-3);
  margin-bottom: 2px;
  border-radius: var(--radius-small);
  font-size: var(--fs-body-sm);
  font-weight: var(--fw-medium);
  color: var(--text-secondary);
  text-decoration: none;
  min-height: 34px;
  transition: background-color var(--motion-fast) var(--ease-out),
    color var(--motion-fast) var(--ease-out);
}

.sidebar-link .icon {
  width: 17px;
  height: 17px;
  color: var(--text-muted);
  flex-shrink: 0;
}

.sidebar-link:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  text-decoration: none;
}

.sidebar-link:hover .icon { color: var(--text-secondary); }

/* Active: deep-blue rectangle with bright-blue icon and text. */
.sidebar-link.is-active {
  background: var(--bg-selected);
  color: var(--accent-blue-hover);
  font-weight: var(--fw-semibold);
}

.sidebar-link.is-active .icon { color: var(--accent-blue-hover); }

.sidebar-count {
  margin-left: auto;
  font-size: 0.6875rem;
  font-weight: var(--fw-semibold);
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  background: var(--bg-panel-dark);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  padding: 0 6px;
  min-width: 20px;
  text-align: center;
}

.sidebar-count-red {
  color: var(--accent-red);
  border-color: rgba(255, 98, 104, 0.4);
  background: var(--accent-red-dim);
}

.sidebar-count-amber {
  color: var(--accent-amber);
  border-color: rgba(244, 182, 33, 0.4);
  background: var(--accent-amber-dim);
}

/* ---------- Workspace ---------------------------------------------------- */
.admin-main {
  flex: 1 1 auto;
  min-width: 0;
  padding: var(--page-padding);
  padding-bottom: var(--sp-16);
}

.admin-page-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--sp-4);
  flex-wrap: wrap;
  margin-bottom: var(--sp-5);
}

.admin-lede {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  max-width: 90ch;
  margin: 0 0 var(--sp-5);
}

/* Dense five-across metric row from the admin overview reference. */
.metric-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(178px, 1fr));
  gap: var(--sp-3);
}

.metric-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-medium);
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  text-decoration: none;
  min-height: 96px;
}

a.metric-card:hover {
  border-color: var(--border-strong);
  background: var(--bg-panel-raised);
  text-decoration: none;
}

a.metric-card:focus-visible {
  outline: none;
  box-shadow: var(--focus-ring);
}

.metric-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.625rem;
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--text-muted);
}

.metric-value {
  font-size: 1.625rem;
  font-weight: var(--fw-medium);
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
}

/* Two-column workspace split used on reports and overview pages */
.split-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--sp-4);
}

.split-main-aside {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(280px, 1fr);
  gap: var(--sp-4);
  align-items: start;
}

/* ---------- Sidebar drawer on small screens ------------------------------ */
.sidebar-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: var(--touch-target);
  height: var(--touch-target);
  border-radius: var(--radius-small);
  border: 1px solid var(--border-default);
  color: var(--text-secondary);
  flex-shrink: 0;
}

.sidebar-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.sidebar-toggle:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

.sidebar-scrim {
  display: none;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-drawer) - 1);
  background: var(--bg-overlay);
}

.sidebar-scrim.is-open { display: block; }

@media (max-width: 1024px) {
  .split-main-aside { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 900px) {
  .sidebar-toggle { display: inline-flex; }

  .app-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    width: 252px;
    z-index: var(--z-drawer);
    transform: translateX(-100%);
    transition: transform var(--motion-base) var(--ease-out);
    box-shadow: var(--shadow-drawer);
    padding-top: var(--sp-4);
  }

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

  .sidebar-drawer-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--sp-3);
    padding: 0 var(--sp-3) var(--sp-4);
    margin-bottom: var(--sp-2);
    border-bottom: 1px solid var(--border-default);
  }

  .sidebar-link { min-height: var(--touch-target); }

  .admin-main { padding: var(--sp-4); padding-bottom: var(--sp-12); }
}

@media (min-width: 901px) {
  .sidebar-drawer-head { display: none; }
}

@media (max-width: 640px) {
  .metric-row { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
  .metric-value { font-size: 1.375rem; }
}