/* ==========================================================================
   CLEAN & CRISP MODERN SIDEBAR THEME (AdminLTE 3)
   ========================================================================== */

/* 1. Global Font & Smooth Rendering */
body, .main-sidebar, .nav-sidebar {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif !important;
  -webkit-font-smoothing: antialiased !important;
  -moz-osx-font-smoothing: grayscale !important;
  text-rendering: optimizeLegibility !important;
}

/* 2. Main Sidebar Background & Width */
.main-sidebar, .sidebar {
  width: 270px !important;
  background: #111827 !important; /* Deep clean slate dark */
}

@media (min-width: 768px) {
  body:not(.sidebar-collapse) .content-wrapper,
  body:not(.sidebar-collapse) .main-footer,
  body:not(.sidebar-collapse) .main-header {
    margin-left: 270px !important;
  }
}

/* 3. Section Headers (nav-header) */
.nav-sidebar .nav-header {
  font-size: 0.72rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  color: #64748b !important; /* Muted slate */
  padding: 1rem 1rem 0.35rem 1rem !important;
}

/* 4. Nav Links (Menu Items) */
.nav-sidebar .nav-item .nav-link {
  position: relative !important;
  display: flex !important;
  align-items: center !important;
  border-radius: 8px !important;
  margin: 2px 10px !important;
  padding: 0.55rem 0.85rem !important;
  color: #94a3b8 !important;
  font-size: 0.88rem !important;
  font-weight: 500 !important;
  transition: all 0.15s ease-in-out !important;
}

.nav-sidebar .nav-item .nav-link:hover {
  background: rgba(255, 255, 255, 0.05) !important;
  color: #f8fafc !important;
}

.nav-sidebar .nav-item .nav-link.active {
  background: #2563eb !important; /* Clean solid blue */
  color: #ffffff !important;
  font-weight: 600 !important;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.35) !important;
}

/* 5. Crisp Icons (No blurry rounded boxes) */
.nav-sidebar .nav-link i.nav-icon {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  width: 22px !important;
  min-width: 22px !important;
  height: 22px !important;
  font-size: 0.95rem !important;
  margin-right: 0.75rem !important;
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  transition: transform 0.15s ease !important;
}

.nav-sidebar .nav-link:hover i.nav-icon {
  transform: scale(1.1) !important;
}

/* 6. Text and Caret / Right Arrow */
.nav-sidebar .nav-link p {
  display: inline-block !important;
  margin: 0 !important;
  white-space: nowrap !important;
  overflow: hidden !important;
  text-overflow: ellipsis !important;
  max-width: 175px !important;
}

.nav-sidebar .nav-link i.right {
  position: absolute !important;
  right: 12px !important;
  top: 50% !important;
  transform: translateY(-50%) !important;
  font-size: 0.75rem !important;
  color: #64748b !important;
  transition: transform 0.2s ease !important;
}

.nav-item.menu-open > .nav-link i.right,
.nav-item.menu-is-opening > .nav-link i.right {
  transform: translateY(-50%) rotate(-90deg) !important;
}

/* 7. Clean Submenus (Treeview) */
.nav-treeview {
  background: rgba(0, 0, 0, 0.15) !important;
  border-radius: 8px !important;
  margin: 2px 10px 4px 10px !important;
  padding: 3px 0 !important;
}

.nav-treeview .nav-item .nav-link {
  margin: 1px 6px !important;
  padding: 0.45rem 0.65rem 0.45rem 1.8rem !important;
  font-size: 0.83rem !important;
  color: #cbd5e1 !important;
}

.nav-treeview .nav-item .nav-link i.nav-icon {
  font-size: 0.8rem !important;
  width: 18px !important;
  min-width: 18px !important;
  margin-right: 0.5rem !important;
}

.nav-treeview .nav-item .nav-link:hover {
  background: rgba(255, 255, 255, 0.08) !important;
  color: #ffffff !important;
}

.nav-treeview .nav-item .nav-link.active {
  background: rgba(37, 99, 235, 0.8) !important;
  color: #ffffff !important;
}

/* 8. Vibrant Icon Colors */
.text-primary   { color: #60a5fa !important; }
.text-success   { color: #34d399 !important; }
.text-warning   { color: #fbbf24 !important; }
.text-danger    { color: #f87171 !important; }
.text-info      { color: #38bdf8 !important; }
.text-secondary { color: #94a3b8 !important; }