/* ==== MUSICTREE NAVIGATION THEME ==== */

:root {
  --nav-drawer-w: 280px;
  --nav-bg: var(--bs-body-bg);
  --nav-border: var(--bs-border-color);
  --backdrop: rgba(0,0,0,0.45);
}

/* ===== HAMBURGER MENU BUTTON (MOBILE ONLY) ===== */
.hamburger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: opacity 0.2s ease;
}

.hamburger:hover {
  opacity: 0.8;
}

.hamburger:focus {
  outline: 2px solid rgba(255, 255, 255, 0.5);
  outline-offset: 2px;
}

/* Hide hamburger on desktop (shown via base.html CSS rule) */
@media (min-width: 992px) {
  body.has-rail .hamburger {
    display: none !important;
  }
}

/* Enhanced navigation styling with MusicTree colors */
.admin-nav-drawer .nav-link.active {
  background-color: rgba(255,255,255,0.15) !important; /* White background for active to match desktop */
  color: #fff !important; /* WHITE text for active */
}

.sidebar-nav .badge {
  background-color: var(--color-crema) !important;
  color: var(--color-grigio-blu) !important;
}

.admin-nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--nav-drawer-w);
  background: var(--color-malva); /* MALVA background to match desktop */
  border-right: 1px solid var(--nav-border);
  transform: translateX(-100%);
  transition: transform .18s ease;
  will-change: transform;
  z-index: 1050;
  padding-top: 64px;
  overflow-y: auto;
  box-shadow: 0 8px 24px rgba(0,0,0,.24);
}

.admin-nav-drawer.is-open {
  transform: translateX(0);
}

.admin-nav-backdrop {
  position: fixed;
  inset: 0;
  background: var(--backdrop);
  z-index: 1045;
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease;
}

.admin-nav-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.admin-nav {
  padding: 4px 8px 24px 8px; /* Tighter padding for mobile */
}

/* Match desktop styling - remove bullet points */
.admin-nav-drawer .admin-menu,
.admin-nav-drawer .admin-nav-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.admin-nav-drawer .admin-menu > li,
.admin-nav-drawer .admin-nav-list > li {
  margin: 0;
}

/* Filing drawer separation - add spacing between major groups */
.admin-nav-drawer .admin-menu > li:nth-child(3), /* Teaching dropdown */
.admin-nav-drawer .admin-menu > li:nth-child(4), /* People dropdown */
.admin-nav-drawer .admin-menu > li:nth-child(6), /* Finance dropdown */
.admin-nav-drawer .admin-menu > li:nth-child(7), /* Insights dropdown */
.admin-nav-drawer .admin-menu > li:nth-child(8), /* Media & Store dropdown */
.admin-nav-drawer .admin-menu > li:nth-child(9)  /* Setup dropdown */ {
  margin-top: 5px;
}

/* Remove blue separator lines (pseudo-elements) */
.admin-nav-drawer .admin-menu > li:nth-child(3)::before,
.admin-nav-drawer .admin-menu > li:nth-child(4)::before,
.admin-nav-drawer .admin-menu > li:nth-child(6)::before,
.admin-nav-drawer .admin-menu > li:nth-child(7)::before,
.admin-nav-drawer .admin-menu > li:nth-child(8)::before,
.admin-nav-drawer .admin-menu > li:nth-child(9)::before {
  content: none !important;
  display: none !important;
}

/* Match desktop nav-link styling */
.admin-nav-drawer .nav-link {
  display: flex !important; /* Match desktop flexbox */
  align-items: center;
  width: 100%;
  padding: 8px 12px; /* Tighter spacing for mobile */
  border-radius: 6px;
  text-decoration: none;
  color: #fff !important; /* WHITE text to match desktop */
  font-weight: 500;
  font-size: 0.95rem !important; /* Show text on mobile (desktop hides until hover) */
  white-space: nowrap;
  line-height: 1.1;
  transition: background 0.18s ease;
  margin: 1px 0; /* Minimal margin for tighter spacing */
}

.admin-nav-drawer .nav-link:hover,
.admin-nav-drawer .nav-link:focus {
  background: rgba(255,255,255,0.1); /* White hover background to match desktop */
  color: #fff !important; /* WHITE text color */
  outline: none;
}

/* White icons in mobile drawer to match desktop */
.admin-nav-drawer .nav-ico {
  color: #fff !important; /* White icons */
  font-size: 1.1rem !important;
  width: 1.25em !important;
  height: 1.25em;
  margin-right: 0.5rem !important;
  flex: 0 0 auto;
}

/* White text labels */
.admin-nav-drawer .nav-link > span {
  color: #fff !important;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== COLLAPSIBLE SUBMENU STYLES ===== */
.nav-submenu-parent {
  position: relative;
}

.nav-submenu-toggle {
  display: flex !important;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
}

.nav-submenu-arrow {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.2s ease;
}

.nav-submenu-arrow svg {
  display: block;
  color: currentColor;
}

.nav-submenu-toggle.expanded .nav-submenu-arrow {
  transform: rotate(90deg);
}

.nav-submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.25s ease, opacity 0.2s ease;
}

.nav-submenu.expanded {
  max-height: 500px; /* Large enough for all items */
  opacity: 1;
}

.nav-submenu li {
  margin: 0;
}

/* Submenu items - Mobile drawer */
.admin-nav-drawer .nav-submenu li .nav-link {
  padding: 7px 12px 7px 24px !important; /* 12px additional indent from parent (12px base + 12px) */
  font-size: 0.9rem !important;
  font-weight: 400;
}

.admin-nav-drawer .nav-submenu li .nav-link:hover {
  background: rgba(255,255,255,0.1) !important; /* Match main item hover color */
}

/* Submenu items - Desktop sidebar */
.side-rail .nav-submenu li .nav-link {
  padding-left: 2.5rem !important; /* Additional indent for submenu items */
  font-size: 0.9rem !important;
  font-weight: 400;
}

.side-rail .nav-submenu li .nav-link:hover {
  background: rgba(255,255,255,0.1) !important; /* Match main item hover color */
}

/* Adjust icon size for submenu */
.nav-submenu .nav-ico {
  font-size: 0.9rem;
}