/* ============================================================
   CESIVI Modern UI — Sidebar
   All selectors scoped under body[data-modern-ui="true"]
   ============================================================ */

body[data-modern-ui="true"] .sidebar {
  grid-area: sidebar;
  width: var(--sidebar-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  transition: width 0.18s ease;
  z-index: 10;
}

/* Collapsed state */
body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar {
  width: var(--sidebar-collapsed-w);
}

/* Sidebar header */
body[data-modern-ui="true"] .sidebar .sidebar-head {
  padding: 12px 14px 10px;
  border-bottom: 1px solid var(--border-subtle);
  overflow: hidden;
  flex-shrink: 0;
}

body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar .sidebar-head {
  display: none;
}

body[data-modern-ui="true"] .sidebar .site-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
  margin-bottom: 4px;
}

body[data-modern-ui="true"] .sidebar .site-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: var(--font-size);
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

body[data-modern-ui="true"] .sidebar .site-indicator {
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  display: inline-block;
  flex-shrink: 0;
}

body[data-modern-ui="true"] .sidebar .site-meta {
  font-size: 11px;
  color: var(--fg-subtle);
  font-family: var(--font-mono);
  margin-top: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Shared scrollable area — nav + quicklaunch together, no gap between them */
body[data-modern-ui="true"] .sidebar .sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Navigation items */
body[data-modern-ui="true"] .sidebar .sidebar-nav {
  padding: 8px 0;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  height: var(--row-h);
  color: var(--fg-muted);
  text-decoration: none;
  font-size: var(--font-size);
  border-radius: 0;
  cursor: pointer;
  transition: background 0.1s, color 0.1s;
  white-space: nowrap;
  overflow: hidden;
  position: relative;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item:hover {
  background: var(--bg-hover);
  color: var(--accent);
  text-decoration: none;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item.active,
body[data-modern-ui="true"] .sidebar .sidebar-nav-item[aria-current="page"] {
  background: var(--accent-soft);
  color: var(--accent-fg);
  font-weight: 500;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item.active::before,
body[data-modern-ui="true"] .sidebar .sidebar-nav-item[aria-current="page"]::before {
  content: '';
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 3px;
  background: var(--accent);
  border-radius: 0 2px 2px 0;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item .nav-icon {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  font-size: 15px;
  flex-shrink: 0;
  color: inherit;
}

body[data-modern-ui="true"] .sidebar .sidebar-nav-item .nav-label {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: opacity 0.15s;
}

/* QuickLaunch section heading (e.g. "Recent") — not a link */
body[data-modern-ui="true"] .sidebar .sidebar-ql-heading {
  padding: 12px 14px 4px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-subtle);
}

/* QuickLaunch separator between fixed nav and user-defined links */
body[data-modern-ui="true"] .sidebar .sidebar-quicklaunch {
  border-top: 1px solid var(--border-subtle);
  padding-top: 4px;
}

/* Edit Links anchor */
body[data-modern-ui="true"] .sidebar .sidebar-editlinks {
  display: block;
  padding: 6px 14px;
  font-size: 11px;
  color: var(--fg-subtle);
  text-decoration: none;
}

body[data-modern-ui="true"] .sidebar .sidebar-editlinks:hover {
  color: var(--accent);
  text-decoration: none;
}

/* Hide labels when collapsed */
body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar .sidebar-nav-item .nav-label {
  opacity: 0;
  pointer-events: none;
  width: 0;
}

body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar .sidebar-nav-item {
  justify-content: center;
  padding: 0;
}

body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar .sidebar-nav-item .nav-icon {
  width: var(--sidebar-collapsed-w);
}

/* Sidebar footer with collapse toggle */
body[data-modern-ui="true"] .sidebar .sidebar-foot {
  padding: 8px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  flex-shrink: 0;
}

body[data-modern-ui="true"][data-sidebar="collapsed"] .sidebar .sidebar-foot {
  justify-content: center;
}

body[data-modern-ui="true"] .sidebar .sidebar-collapse-btn {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  color: var(--fg-subtle);
  font-size: 16px;
  transition: background 0.12s, color 0.12s;
}

body[data-modern-ui="true"] .sidebar .sidebar-collapse-btn:hover {
  background: var(--bg-hover);
  color: var(--fg);
}

/* PLAN-1364 Phase 2: off-canvas sidebar + scrim at mobile */
@media (max-width: 768px) { /* token: --bp-tablet */
  body[data-modern-ui="true"] .sidebar {
    display: flex; /* un-hide (was display:none) */
    position: fixed;
    top: var(--topbar-h);
    left: 0;
    bottom: 0;
    width: var(--sidebar-w) !important; /* override collapsed state at mobile */
    z-index: 200;
    transform: translateX(-100%);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
    box-shadow: none;
  }

  body[data-modern-ui="true"].sidebar-open .sidebar {
    transform: translateX(0);
    box-shadow: 4px 0 20px oklch(0.15 0.02 240 / 0.18);
  }

  /* Scrim — rendered in _ModernLayout.cshtml */
  body[data-modern-ui="true"] .sidebar-scrim {
    display: none;
    position: fixed;
    inset: 0;
    background: oklch(0.15 0.01 240 / 0.40);
    z-index: 199;
    cursor: pointer;
  }

  body[data-modern-ui="true"].sidebar-open .sidebar-scrim {
    display: block;
  }

  /* Close button inside sidebar — only shown at mobile */
  body[data-modern-ui="true"] .sidebar-close-btn {
    display: flex !important;
  }
}

/* Hide mobile-only sidebar close button at wider viewports */
body[data-modern-ui="true"] .sidebar-close-btn {
  display: none;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  place-items: center;
  color: var(--fg-subtle);
  font-size: 18px;
  transition: background 0.12s, color 0.12s;
  margin-left: auto;
}

body[data-modern-ui="true"] .sidebar-close-btn:hover {
  background: var(--bg-hover);
  color: var(--fg);
}