/* ════════════════════════════════════════════════════
   SIDEBAR  —  css/sidebar.css
════════════════════════════════════════════════════ */

.app-sidebar {
  background: var(--surface-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: var(--space-3) 0 var(--space-4);
  overflow: hidden;
}

/* ── Pin / collapse toggle ────────────── */
.sidebar-pin-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  color: var(--brand-orange);
  margin-bottom: var(--space-2);
  transition: opacity var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.sidebar-pin-btn:hover { opacity: 0.75; }

.sidebar-pin-btn .pin-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  transition: transform var(--transition-med);
}

.sidebar-pin-btn .pin-label {
  transition: opacity var(--transition-med);
  overflow: hidden;
}

.app-sidebar.collapsed .sidebar-pin-btn {
  justify-content: center;
  padding: var(--space-2);
}
.app-sidebar.collapsed .sidebar-pin-btn .pin-label {
  opacity: 0;
  width: 0;
  pointer-events: none;
}
.app-sidebar.collapsed .sidebar-pin-btn .pin-icon {
  transform: rotate(45deg);
}

/* ── Nav section ──────────────────────── */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0 var(--space-2);
}

/* ── Section group ────────────────────── */
.sidebar-group { margin-bottom: var(--space-1); }

/* ── Nav item ─────────────────────────── */
.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--ink-muted);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
              padding var(--transition-med);
  white-space: nowrap;
  position: relative;
  user-select: none;
}

.sidebar-item:hover {
  background: var(--brand-orange-light);
  color: var(--brand-orange);
}

.sidebar-item.active {
  background: var(--brand-orange-light);
  color: var(--brand-orange);
  font-weight: var(--weight-semibold);
}

.sidebar-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 20%;
  height: 60%;
  width: 3px;
  border-radius: 0 var(--radius-pill) var(--radius-pill) 0;
  background: var(--brand-orange);
  z-index: 1;
}

/* ── SVG Icon ─────────────────────────── */
.sidebar-item__icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* SVGs use currentColor via fill="currentColor" —
   colour is inherited from .sidebar-item color    */
.sidebar-item__icon svg {
  width: 100%;
  height: 100%;
  /* Default: dark navy, dimmed */
  color: #13293F;
  opacity: 0.55;
  transition: opacity var(--transition-fast), color var(--transition-fast);
  display: block;
}

.sidebar-item:hover  .sidebar-item__icon svg { color: var(--brand-orange); opacity: 1; }
.sidebar-item.active .sidebar-item__icon svg { color: var(--brand-orange); opacity: 1; }

/* ── Label ────────────────────────────── */
.sidebar-item__label {
  flex: 1;
  overflow: hidden;
  transition: opacity var(--transition-med), max-width var(--transition-med);
  max-width: 200px;
}

/* ── Caret ────────────────────────────── */
.sidebar-item__caret {
  font-size: 17px;
  font-weight: var(--weight-bold);
  color: var(--ink-faint);
  transition: transform var(--transition-fast), opacity var(--transition-med), width var(--transition-med);
  flex-shrink: 0;
  line-height: 1;
}

.sidebar-item:hover .sidebar-item__caret  { color: var(--brand-orange); }
.sidebar-item.active .sidebar-item__caret { color: var(--brand-orange); }
.sidebar-item.open   .sidebar-item__caret { transform: rotate(90deg); }

/* ── Sub-list (expanded) ──────────────── */
.sidebar-sub-list {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-med);
}

.sidebar-sub-list.open { max-height: 600px; }

.sidebar-item--sub {
  padding-left: calc(var(--space-3) + var(--space-5));
  font-size: var(--text-xs);
}

/* ── Footer ───────────────────────────── */
.sidebar-footer {
  border-top: 1px solid var(--border);
  margin-top: var(--space-2);
  padding: var(--space-3) var(--space-2) 0;
}

/* ══════════════════════════════════════
   COLLAPSED STATE — icon-only rail
   Width: 72px (set in tokens.css)
══════════════════════════════════════ */

.app-sidebar.collapsed .sidebar-item {
  justify-content: center;
  padding: var(--space-2) 0;
  gap: 0;
}

/* Make icons bigger and always fully visible in collapsed mode */
.app-sidebar.collapsed .sidebar-item__icon {
  width: 26px;
  height: 26px;
}

.app-sidebar.collapsed .sidebar-item__icon svg {
  width: 100%;
  height: 100%;
  opacity: 0.65;
}

.app-sidebar.collapsed .sidebar-item:hover  .sidebar-item__icon svg,
.app-sidebar.collapsed .sidebar-item.active .sidebar-item__icon svg {
  opacity: 1;
}

/* Hide labels and carets */
.app-sidebar.collapsed .sidebar-item__label {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}

.app-sidebar.collapsed .sidebar-item__caret {
  opacity: 0;
  width: 0;
  overflow: hidden;
  pointer-events: none;
}

/* Keep active left bar */
.app-sidebar.collapsed .sidebar-item.active::before {
  top: 15%;
  height: 70%;
}

/* Close ALL sub-lists by default when collapsed */
.app-sidebar.collapsed .sidebar-sub-list {
  max-height: 0 !important;
}

/* ── Collapsed sub-list: show icons when a child is active ── */
.app-sidebar.collapsed .sidebar-sub-list.child-active {
  max-height: 600px !important;
  /* Subtle left accent line to group the sub-icons visually */
  border-left: 2px solid var(--brand-orange-light);
  margin-left: 20px;
  padding-left: 4px;
}

/* Sub-items in icon-only mode: centred, no indent */
.app-sidebar.collapsed .sidebar-sub-list.child-active .sidebar-item--sub {
  padding-left: 0;
  padding-right: 0;
  justify-content: center;
  gap: 0;
}

.app-sidebar.collapsed .sidebar-sub-list.child-active .sidebar-item--sub .sidebar-item__label {
  opacity: 0;
  max-width: 0;
  pointer-events: none;
}

/* ── Tooltips (collapsed hover) ─────────── */
.app-sidebar.collapsed .sidebar-item {
  position: relative;
}

.app-sidebar.collapsed .sidebar-item:hover::after {
  content: attr(data-label);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--ink);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  z-index: 300;
  box-shadow: var(--shadow-md);
}

/* Prevent active indicator pseudo from becoming a tooltip arrow */
.app-sidebar.collapsed .sidebar-item:not(.active):hover::before {
  display: none;
}

/* ── Responsive ───────────────────────── */
@media (max-width: 768px) {
  .app-sidebar { transform: translateX(-100%); }
  .app-sidebar.mobile-open { transform: translateX(0); }
}