/* ── Collapsible sidebar shell ───────────────────────────────── */
.dash-sidebar {
  width: 72px;
  flex-shrink: 0;
  background: var(--bg-surface);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  transition: width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  z-index: 200;
}

.dash-sidebar.expanded { width: 240px; }

/* ── Header row ──────────────────────────────────────────────── */
.sidebar-header {
  height: 64px;
  min-height: 64px;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-width: 0;
  flex: 1;
  overflow: hidden;
}

.sidebar-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}

.sidebar-brand-text {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  white-space: nowrap;
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  transition: opacity 0.2s ease 0.05s,
              max-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.dash-sidebar.expanded .sidebar-brand-text {
  opacity: 1;
  max-width: 180px;
}

.sidebar-pin-btn {
  width: 28px;
  height: 28px;
  min-width: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  background: var(--cobalt-faint);
  border-radius: 6px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, opacity 0.2s;
  opacity: 0;
  flex-shrink: 0;
}

.dash-sidebar.expanded .sidebar-pin-btn { opacity: 1; }

.sidebar-pin-btn:hover {
  background: rgba(65, 105, 225, 0.15);
  color: var(--cobalt-light);
}

/* ── User info ───────────────────────────────────────────────── */
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
  overflow: hidden;
}

.sidebar-avatar { flex-shrink: 0; }

.sidebar-user-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  transition: opacity 0.2s ease 0.05s,
              max-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.dash-sidebar.expanded .sidebar-user-info {
  opacity: 1;
  max-width: 160px;
}

.sidebar-user-name {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-role-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  white-space: nowrap;
}

.sidebar-role-badge--admin { color: var(--cobalt-light); }

/* ── Nav scroll area ─────────────────────────────────────────── */
.sidebar-nav {
  flex: 1;
  padding: 0.75rem 0.5rem;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(65, 105, 225, 0.2) transparent;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.sidebar-nav::-webkit-scrollbar       { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(65, 105, 225, 0.2); border-radius: 2px; }

.sidebar-nav-section {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

.sidebar-nav-divider {
  height: 1px;
  background: var(--border-subtle);
  margin: 0.5rem 0.25rem;
}

.sidebar-nav-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  padding: 0.5rem 0.75rem 0.25rem;
  white-space: nowrap;
  opacity: 0;
  max-width: 0;
  overflow: hidden;
  height: 0;
  transition: opacity 0.2s ease,
              max-width 0.28s cubic-bezier(0.4, 0, 0.2, 1),
              height 0.2s ease;
}

.dash-sidebar.expanded .sidebar-nav-label {
  opacity: 1;
  max-width: 200px;
  height: auto;
}

/* ── Nav item ────────────────────────────────────────────────── */
.sidebar-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.625rem;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  text-align: left;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
  min-height: 40px;
  position: relative;
}

/* Center icon when collapsed */
.dash-sidebar:not(.expanded) .sidebar-item { justify-content: center; }

.sidebar-item:hover { background: var(--cobalt-faint); color: var(--text-primary); }

.sidebar-item--active {
  color: var(--cobalt-light);
  background: rgba(65, 105, 225, 0.1);
}

.sidebar-item--active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--cobalt-light);
  border-radius: 0 2px 2px 0;
}

.sidebar-item--active:hover { background: rgba(65, 105, 225, 0.14); }
.sidebar-item--admin  { color: var(--cobalt-light); }
.sidebar-item--signout { color: var(--text-muted); }
.sidebar-item--signout:hover { color: var(--crimson); background: var(--crimson-faint); }

.sidebar-item-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sidebar-item-label {
  flex: 1;
  overflow: hidden;
  opacity: 0;
  max-width: 0;
  white-space: nowrap;
  transition: opacity 0.2s ease 0.05s,
              max-width 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

.dash-sidebar.expanded .sidebar-item-label {
  opacity: 1;
  max-width: 160px;
}

/* ── Footer ──────────────────────────────────────────────────── */
.sidebar-footer {
  padding: 0.5rem;
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
}

/* ── Mobile overlay + hamburger ──────────────────────────────── */
.sidebar-mobile-overlay {
  display: none;
}

.mobile-hamburger {
  display: none;
  position: fixed;
  top: 0.875rem;
  left: 0.875rem;
  z-index: 201;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  border-radius: 8px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s, color 0.2s;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.mobile-hamburger:hover {
  background: var(--cobalt-faint);
  color: var(--cobalt-light);
}

/* ── Mobile breakpoint ───────────────────────────────────────── */
@media (max-width: 768px) {
  .dash-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    height: 100vh;
    width: 280px;
    transform: translateX(-100%);
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: none;
  }

  .dash-sidebar.mobile-open {
    transform: translateX(0);
    width: 280px;
    box-shadow: 4px 0 32px rgba(0, 0, 0, 0.5);
  }

  /* Always show labels on mobile regardless of expanded */
  .dash-sidebar .sidebar-brand-text,
  .dash-sidebar .sidebar-user-info,
  .dash-sidebar .sidebar-item-label,
  .dash-sidebar .sidebar-nav-label {
    opacity: 1 !important;
    max-width: 200px !important;
    height: auto !important;
  }

  .dash-sidebar .sidebar-item {
    justify-content: flex-start !important;
    padding: 0.625rem !important;
  }

  .dash-sidebar .sidebar-pin-btn { display: none; }

  .sidebar-mobile-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
    z-index: 199;
  }

  .mobile-hamburger { display: flex; }
}