/* Theme: Portal-like layout, preserving existing brand colors
   Scope: login/register (body.theme-portal) + dashboard/table refinements
   Note: No third-party assets copied. Adjust variables only via overrides. */

:root {
  --portal-radius: 10px;
  --portal-radius-sm: 8px;
  --portal-shadow: 0 6px 18px rgba(0,0,0,0.08);
  --portal-shadow-soft: 0 3px 10px rgba(0,0,0,0.06);
  --portal-border: #e5e7eb;
  --portal-bg: #f3f4f6; /* page background */
  --portal-muted: #6b7280;
  --portal-heading: #111827;
}

/* ------------------------
   Auth pages (login/register)
   ------------------------ */
body.theme-portal {
  background: var(--portal-bg) !important;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
/* Disable fancy animated background from inline styles */
body.theme-portal::before { display: none !important; }

/* Auth pages can opt-in to use brand gradient as page background */
body.theme-portal.auth-gradient {
  background: var(--primary-gradient) !important;
}
body.theme-portal.auth-gradient::before { display: none !important; }

/* Card look: flatter, bordered, subtle shadow */
body.theme-portal .login-card,
body.theme-portal .register-card {
  background: #fff !important;
  border: 1px solid var(--portal-border) !important;
  border-radius: var(--portal-radius) !important;
  box-shadow: var(--portal-shadow) !important;
  backdrop-filter: none !important;
}

/* Remove heavy top gradient bar if present; keep a thin brand line */
body.theme-portal .login-card::before,
body.theme-portal .register-card::before {
  height: 3px !important;
  opacity: 0.9;
}

/* Brand block: simpler */
body.theme-portal .brand-logo {
  background: #fff !important;
  border: 1px solid var(--portal-border);
  border-radius: 12px !important;
  box-shadow: var(--portal-shadow-soft) !important;
}
body.theme-portal .brand-logo i { color: #111827 !important; }
body.theme-portal .brand-title { color: var(--portal-heading) !important; }
body.theme-portal .brand-subtitle { color: var(--portal-muted) !important; }

/* Inputs: thinner borders, smaller radius */
body.theme-portal .form-control {
  border: 1px solid var(--portal-border) !important;
  border-radius: var(--portal-radius-sm) !important;
  padding: 0.75rem 0.95rem !important;
  box-shadow: none !important;
}
body.theme-portal .form-control:focus {
  border-color: #667eea !important; /* preserve primary hue */
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1) !important;
  transform: none !important;
}
body.theme-portal .input-icon { color: var(--portal-muted) !important; pointer-events: none; }
/* Ensure inputs with a left icon have enough padding even if class missing */
.input-group .input-icon + .form-control { padding-left: 2.75rem !important; }
/* Ensure inputs with a right addon (e.g., password toggle) have right padding */
.input-group .form-control.with-right-addon { padding-right: 2.75rem !important; }

/* Keep right-side password eye toggle visible when typing */
body.theme-portal .input-group { position: relative; overflow: visible; }
body.theme-portal .input-group .form-control { position: relative; z-index: 1; }
body.theme-portal .input-group .password-toggle {
  position: absolute; /* ensure overlay */
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3; /* above input text/caret */
}

/* Buttons: toned shadows, tighter radius */
body.theme-portal .btn,
body.theme-portal .btn-login {
  border-radius: var(--portal-radius-sm) !important;
  box-shadow: none !important;
}
body.theme-portal .btn-primary,
body.theme-portal .btn-login {
  background: var(--primary-gradient) !important; /* keep your brand gradient */
}
body.theme-portal .btn-outline {
  border: 1px solid var(--portal-border) !important;
  color: var(--portal-muted) !important;
}

/* Steps/progress: minimal */
body.theme-portal .progress-bar { height: 5px !important; border-radius: 3px; }
body.theme-portal .step-title { color: var(--portal-heading) !important; }
body.theme-portal .step-number { border-radius: 999px !important; }

/* Alerts: subtler */
body.theme-portal .alert { border: 1px solid var(--portal-border) !important; box-shadow: none !important; }

/* Terms box */
body.theme-portal .terms-checkbox {
  background: #fafafa !important;
  border: 1px solid var(--portal-border) !important;
  border-radius: var(--portal-radius) !important;
}

/* Role cards */
body.theme-portal .role-option {
  border: 1px solid var(--portal-border) !important;
  border-radius: var(--portal-radius) !important;
  box-shadow: none !important;
}
body.theme-portal .role-option:hover { box-shadow: var(--portal-shadow-soft) !important; }

/* ------------------------
   Dashboard refinements
   ------------------------ */
/* Flatten general chrome a bit */
.sidebar { box-shadow: none; }

/* Portal-like sidebar structural variant */
.sidebar.portal-structure {
  background: #1f2937; /* dark slate backdrop differing from gradient */
  display: flex;
  flex-direction: column;
  padding-top: 0.75rem;
  width: 250px;
}
.portal-structure .nav-menu,
.portal-structure .sidebar-nav { padding: 0; margin: 0; list-style: none; }
.portal-structure .nav-menu > li > a,
.portal-structure .sidebar-nav > .nav-item > a {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1.1rem;
  color: #e5e7eb;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 6px;
  margin: 2px 8px;
  transition: background .15s, color .15s;
}
.portal-structure .nav-menu > li > a:hover,
.portal-structure .sidebar-nav > .nav-item > a:hover { background: rgba(255,255,255,0.08); color: #fff; }
.portal-structure .nav-menu > li > a.active { background: rgba(255,255,255,0.16); color: #fff; }

/* Group headers */
/* Mobile responsive tables (quiz list) */
@media (max-width: 768px) {
  #quizTable thead { display: none; }
  #quizTable tbody tr { display: flex; flex-direction: column; padding: .75rem .75rem; border: 1px solid #e9ecef; border-radius: 8px; margin-bottom: .75rem; background:#fff; }
  #quizTable tbody tr td { display: flex; justify-content: space-between; align-items: flex-start; padding: .25rem 0 !important; border: 0 !important; width: 100%; }
  #quizTable tbody tr td[data-label]::before { content: attr(data-label); font-weight: 600; color: #6c757d; margin-right: .75rem; }
  #quizTable tbody tr td.text-end { justify-content: flex-end; }
  #quizTable tbody tr td.text-end::before { content: none; }
  #quizTableWrap { overflow-x: visible !important; }
}
.portal-group-title { text-transform: uppercase; letter-spacing: .05em; font-size: .65rem; color:#9ca3af; padding: 0.75rem 1.1rem 0.4rem; font-weight:600; }

/* Collapsible submenus */
.portal-submenu { list-style:none; margin:0; padding:0 0 0 0.25rem; }
.portal-submenu li a { display:flex; align-items:center; gap:0.65rem; padding:0.55rem 1.25rem; font-size:0.78rem; color:#d1d5db; border-radius:6px; margin:1px 8px; }
.portal-submenu li a:hover { background: rgba(255,255,255,0.08); color:#fff; }
.portal-submenu li a.active { background: rgba(255,255,255,0.16); color:#fff; }

/* Icons tighter */
.portal-structure .nav-menu i, .portal-structure .sidebar-nav i { width:18px; text-align:center; font-size:0.9rem; }

/* Separator */
.portal-separator { height:1px; background:#374151; margin:0.6rem 0.75rem; border-radius:1px; }

/* Scroll styling */
.portal-structure::-webkit-scrollbar { width:8px; }
.portal-structure::-webkit-scrollbar-track { background:#111827; }
.portal-structure::-webkit-scrollbar-thumb { background:#374151; border-radius:4px; }
.portal-structure::-webkit-scrollbar-thumb:hover { background:#4b5563; }

/* Responsive collapse mimic */
@media (max-width: 768px) {
  .sidebar.portal-structure { transform: translateX(-101%); transition: transform .25s ease; position:fixed; left:0; top:0; height:100vh; z-index:1050; }
  .sidebar.portal-structure.show,
  .sidebar.portal-structure.mobile-open { transform: translateX(0); }
}

/* Header/title tone */
.content-header { border-bottom: 1px solid #e5e7eb !important; box-shadow: none !important; }

/* Cards slightly flatter */
.dashboard-card,
.stats-card,
.filter-panel,
.table-container {
  box-shadow: var(--portal-shadow) !important;
  border: 1px solid #eef0f3;
}

/* ------------------------
   Tables: portal-like (flat, compact)
   ------------------------ */
.table-container { border-radius: var(--portal-radius) !important; }
.table { margin-bottom: 0; }
.table thead th {
  background: #f1f5f9 !important; /* light slate */
  color: #111827 !important;
  border-bottom: 1px solid #e5e7eb !important;
  font-weight: 600 !important;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  font-size: 0.78rem !important;
  padding: 0.75rem 0.9rem !important;
}
.table tbody td {
  padding: 0.75rem 0.9rem !important;
  border-color: #eef2f7 !important;
}
/* Remove scale-on-hover from existing styles */
.table tbody tr:hover {
  background-color: #f8fafc !important;
  transform: none !important;
}
/* Stripe helper */
.table.table-striped tbody tr:nth-child(odd) { background-color: #fcfdff; }

/* Compact utility */
.table-compact thead th,
.table-compact tbody td {
  padding-top: 0.55rem !important;
  padding-bottom: 0.55rem !important;
}

/* DataTables compatibility */
.dataTables_wrapper .dataTables_filter input {
  border: 1px solid var(--portal-border);
  border-radius: 8px;
  padding: 0.35rem 0.5rem;
}
.dataTables_wrapper .dataTables_length select {
  border: 1px solid var(--portal-border);
  border-radius: 8px;
}

/* Badges subtle */
.badge { border-radius: 999px; font-weight: 600; }

/* Breadcrumb look */
.breadcrumb-item + .breadcrumb-item::before { color: #9ca3af; }

/* ------------------------
   Misc accessibility tweaks
   ------------------------ */
:focus-visible { outline-color: #667eea; outline-offset: 2px; }

/* Header hamburger button */
.hamburger-btn {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: linear-gradient(135deg, #007bff 0%, #6610f2 100%);
  color: #fff !important;
  border: none;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transition: transform .15s ease, box-shadow .15s ease;
}
.hamburger-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px rgba(0,0,0,0.18); }
.hamburger-btn:active { transform: translateY(0); }
.hamburger-btn i { font-size: 1.1rem; }

/* -------------------------------------------------
   New Portal-Like Sidebar (structural + typography)
   -------------------------------------------------
   Replicates hierarchy & sizing; keeps gradient background.
   Avoids copying external color palette; uses opacity-based overlays.
*/
.sidebar.portal-like {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  display: flex;
  flex-direction: column;

/* Scoped fix: Ensure assessment tables can scroll horizontally */
.academic-view .table-responsive,
[data-page="academic-view-assessment"] .table-responsive {
  overflow-x: auto !important;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-x;
}

[data-page="academic-view-assessment"] .table-responsive table,
.academic-view .table-responsive table {
  min-width: 900px;
}
  padding-top: 0.6rem;
  box-shadow: none;
  transition: width .2s ease;
}
.sidebar.portal-like .portal-quick { position: sticky; top: 0; z-index: 5; padding-bottom: .25rem; backdrop-filter: saturate(120%); }
.sidebar.portal-like .sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding-top: .25rem; }
.sidebar.portal-like .sidebar-nav::-webkit-scrollbar { width: 8px; }
.sidebar.portal-like .sidebar-nav::-webkit-scrollbar-thumb { background: rgba(0,0,0,0.25); border-radius: 4px; }
.sidebar.portal-like .sidebar-nav::-webkit-scrollbar-track { background: rgba(255,255,255,0.05); }
.sidebar.portal-like .sidebar-header { border-bottom: 1px solid rgba(255,255,255,0.15); }
.sidebar.portal-like .logo-text { font-weight: 600; font-size: 0.95rem; letter-spacing: .2px; }

.sidebar.portal-like .sidebar-nav { list-style:none; margin:0; padding:0; }
.sidebar.portal-like .sidebar-nav > li { margin: 2px 8px; }

/* Top-level links */
.sidebar.portal-like .nav-link {
  display:flex; align-items:center; gap:0.65rem;
  padding:0.6rem 0.85rem;
  font-size:0.875rem; /* ~14px */
  font-weight:600;
  letter-spacing:.2px;
  color:rgba(255,255,255,0.9);
  text-decoration:none;
  border-radius:6px;
  transition:background .15s, color .15s;
}
.sidebar.portal-like .nav-link i { 
  width: 18px !important; 
  min-width: 18px !important;
  text-align: center; 
  font-size: 0.9rem !important; 
  display: inline-block !important;
  flex-shrink: 0 !important;
}
/* Specific fix for Settings icons that may render smaller */
.sidebar.portal-like .nav-link i.fa-cog,
.sidebar.portal-like .nav-link i.fa-cogs,
.sidebar.portal-like .nav-link i.fa-sliders-h {
  font-size: 1rem !important;
}
.sidebar.portal-like .nav-link:hover { background:rgba(255,255,255,0.10); color:#fff; }
.sidebar.portal-like .nav-link.active { background:rgba(255,255,255,0.18); color:#fff; }

/* Group */
.sidebar.portal-like .nav-group { margin:4px 0 6px; }
.sidebar.portal-like .nav-group + .nav-group { position: relative; }
.sidebar.portal-like .nav-group + .nav-group::before {
  content: ""; position: absolute; left: 8px; right: 8px; top: -4px;
  height: 1px; background: rgba(255,255,255,0.08);
}
.sidebar.portal-like .nav-group-header {
  cursor:pointer; display:flex; align-items:center; gap:0.55rem;
  padding:0.6rem 0.85rem; margin:0 8px; border-radius:6px;
  font-size:0.875rem; font-weight:600; /* normal case to match portal */
  letter-spacing:.2px; color:rgba(255,255,255,0.85);
  transition:background .15s, color .15s; position:relative;
}
.sidebar.portal-like .nav-group-header i:not(.group-toggle) { 
  width: 18px !important; 
  min-width: 18px !important;
  text-align: center; 
  font-size: 0.9rem !important;
  display: inline-block !important;
  flex-shrink: 0 !important;
}
/* Specific fix for Settings icons in group headers */
.sidebar.portal-like .nav-group-header i.fa-cog,
.sidebar.portal-like .nav-group-header i.fa-cogs,
.sidebar.portal-like .nav-group-header i.fa-sliders-h {
  font-size: 1rem !important;
}
.sidebar.portal-like .nav-group-header:hover { background:rgba(255,255,255,0.08); color:#fff; }
.sidebar.portal-like .nav-group-header .group-toggle { margin-left:auto; font-size:0.6rem; opacity:.7; transition:transform .2s; }
/* Rotate arrow to point down when group is open (AdminLTE-like) */
.sidebar.portal-like .nav-group:not(.collapsed) .nav-group-header .group-toggle { transform:rotate(-90deg); }

/* Submenu */
.sidebar.portal-like .nav-submenu { list-style:none; margin:2px 0 6px; padding:0; }
.sidebar.portal-like .nav-submenu li { margin:1px 0; }
.sidebar.portal-like .nav-submenu .nav-link {
  font-weight:500; font-size:0.8125rem; /* ~13px */
  padding:0.5rem 0.75rem 0.5rem 1.6rem;
  color:rgba(255,255,255,0.8);
  background: inherit;
}
.sidebar.portal-like .nav-submenu .nav-link:hover { background: inherit; color:#fff; }
.sidebar.portal-like .nav-submenu .nav-link.active { background: inherit; color:#fff; font-weight:700; }
/* Hide explicit submenu icons and use a bullet arrow like portal */
.sidebar.portal-like .nav-submenu .nav-link i:first-child { display:none !important; }
.sidebar.portal-like .nav-submenu .nav-link::before {
  content: "\f101"; /* fa-angles-right */
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  display:inline-block; width:1rem; margin-left:-1rem; margin-right:0.35rem;
  color: rgba(255,255,255,0.55);
}
.sidebar.portal-like .nav-submenu .nav-link.active::before { color: #fff; }

/* Collapsed behavior (reuse existing .collapsed JS toggle) */
.sidebar.portal-like.collapsed .logo-text { display:none; }
.sidebar.portal-like.collapsed .nav-link span { display:none; }
.sidebar.portal-like.collapsed .nav-group-header span { display:none; }
.sidebar.portal-like.collapsed .nav-link,
.sidebar.portal-like.collapsed .nav-group-header { justify-content:center; padding:0.55rem; }
.sidebar.portal-like.collapsed .portal-quick { display:none; }
.sidebar.portal-like.hover-expand .nav-link span,
.sidebar.portal-like.hover-expand .nav-group-header span { display:inline !important; }
.sidebar.portal-like.hover-expand .nav-link,
.sidebar.portal-like.hover-expand .nav-group-header { justify-content:flex-start; padding:0.6rem 0.85rem; }
.sidebar.portal-like.collapsed .nav-link:hover span,
.sidebar.portal-like.collapsed .nav-group-header:hover span {
  display:block; position:absolute; left:100%; top:50%; transform:translateY(-50%);
  background:rgba(0,0,0,0.65); padding:0.35rem 0.6rem; border-radius:4px;
  white-space:nowrap; font-size:inherit; pointer-events:none; color:#fff; z-index:10;
}
/* Ensure submenu text shows during hover-expand */
.sidebar.portal-like.collapsed.hover-expand .nav-submenu .nav-link span { display:inline !important; position:static !important; opacity:1 !important; }

/* Ensure full-width expansion on hover when collapsed (overlay, no layout shift) */
.sidebar.portal-like.collapsed.hover-expand {
  width: var(--sidebar-width);
  z-index: 1055; /* above header/content */
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}
.sidebar.portal-like.collapsed.hover-expand .portal-quick { display: block; }
/* Normalize submenu positioning during hover expansion */
.sidebar.portal-like.collapsed.hover-expand .nav-submenu {
  position: static !important;
  left: auto !important;
  top: auto !important;
  width: auto !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  padding: 0 !important;
}
/* Show only hovered or active group's sublinks during hover-expand */
.sidebar.portal-like.collapsed.hover-expand .nav-group .nav-submenu { display: none !important; }
.sidebar.portal-like.collapsed.hover-expand .nav-group:hover .nav-submenu,
.sidebar.portal-like.collapsed.hover-expand .nav-group:not(.collapsed) .nav-submenu { display: block !important; }

/* Remove tooltip bubble on labels during hover-expand for parity with expanded state */
.sidebar.portal-like.collapsed.hover-expand .nav-link:hover span,
.sidebar.portal-like.collapsed.hover-expand .nav-group-header:hover span {
  background: transparent !important;
  position: static !important;
  transform: none !important;
  display: inline !important;
}

/* Match hover/active highlights to expanded styles during hover-expand */
.sidebar.portal-like.collapsed.hover-expand .nav-link:hover { background: rgba(255,255,255,0.10) !important; color: #fff !important; }
.sidebar.portal-like.collapsed.hover-expand .nav-link.active { background: rgba(255,255,255,0.18) !important; color: #fff !important; }

/* Restore submenu item spacing/shape to expanded look during hover-expand */
.sidebar.portal-like.collapsed.hover-expand .nav-submenu .nav-link {
  padding: 0.5rem 0.75rem 0.5rem 1.6rem !important;
  border-radius: 6px !important;
  margin: 1px 0 !important;
}
.sidebar.portal-like.collapsed.hover-expand .nav-submenu .nav-link { background: inherit !important; }
.sidebar.portal-like.collapsed.hover-expand .nav-submenu .nav-link:hover { background: inherit !important; color:#fff !important; }
.sidebar.portal-like.collapsed.hover-expand .nav-submenu .nav-link.active { background: inherit !important; color:#fff !important; font-weight:700; }

/* Scrollbar */
.sidebar.portal-like::-webkit-scrollbar { width:8px; }
.sidebar.portal-like::-webkit-scrollbar-track { background:rgba(255,255,255,0.05); }
.sidebar.portal-like::-webkit-scrollbar-thumb { background:rgba(0,0,0,0.25); border-radius:4px; }
.sidebar.portal-like::-webkit-scrollbar-thumb:hover { background:rgba(0,0,0,0.35); }

/* Focus */
.sidebar.portal-like .nav-link:focus-visible,
.sidebar.portal-like .nav-group-header:focus-visible { outline:2px solid #fff; outline-offset:2px; }

/* Badges */
.sidebar.portal-like .badge { font-size:0.7rem; padding:0.2rem 0.5rem; font-weight:600; letter-spacing:.04em; }

/* Session + Quick Links block */
.sidebar.portal-like .portal-quick { color: rgba(255,255,255,0.9); }
.sidebar.portal-like .portal-quick .session-block a,
.sidebar.portal-like .portal-quick .quick-links > a { 
  display:flex; align-items:center; gap:.5rem; 
  padding: .45rem .6rem; margin: 0 4px; border-radius:6px; 
  color: rgba(255,255,255,0.9); text-decoration: none;
}
.sidebar.portal-like .portal-quick a:hover { background: rgba(255,255,255,0.10); color:#fff; }
.sidebar.portal-like .portal-quick .verticalmenu { 
  min-width: 190px; 
  border-radius:8px; 
  border: 1px solid rgba(0,0,0,0.08);
}
.sidebar.portal-like .portal-quick .dropdown-item { font-size: 0.78rem; font-weight:600; }

/* ======================================
   MOBILE MENU REDESIGN - ENHANCED UX
   ====================================== */
@media (max-width: 991.98px) {
  /* Mobile Sidebar - Smooth slide-in drawer */
  .sidebar { 
    transform: translateX(-100%) !important; 
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease !important; 
    position: fixed !important; 
    left: 0 !important; 
    top: 0 !important; 
    /* allow the sidebar to expand if its content is taller than the viewport */
    min-height: 100vh !important; 
    z-index: 1050 !important; 
    width: 85vw !important;
    max-width: 320px !important;
    box-shadow: none !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    -webkit-overflow-scrolling: touch !important; /* Smooth scrolling on iOS */
    display: flex !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  
  .sidebar.mobile-open { 
    transform: translateX(0) !important; 
    box-shadow: 8px 0 24px rgba(0, 0, 0, 0.15) !important;
  }
  
  /* Improved sidebar styling for mobile */
  .sidebar.portal-like { 
    width: 85vw;
    max-width: 320px;
  }

  /* Ensure the nav area inside the mobile sidebar can fully scroll so
     settings group links are reachable on smaller viewports. */
  .sidebar.portal-like .sidebar-nav {
    height: auto !important;
    max-height: none !important;
    overflow-y: auto !important;
    padding-bottom: 6rem !important; /* extra room for safe areas/close buttons */
  }

  /* Improve scroll behavior inside the drawer */
  .sidebar { overscroll-behavior: contain; }
  
  /* Better touch targets - minimum 44x44px */
  .sidebar.portal-like .nav-link { 
    padding: 0.85rem 1rem; 
    font-size: 0.95rem; 
    min-height: 44px;
    display: flex;
    align-items: center;
    transition: background-color 0.2s ease;
  }
  
  .sidebar.portal-like .nav-link:active {
    background-color: rgba(255, 255, 255, 0.15);
  }
  
  .sidebar.portal-like .nav-group-header { 
    padding: 0.85rem 1rem; 
    font-size: 0.95rem; 
    min-height: 44px;
    display: flex;
    align-items: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }
  
  .sidebar.portal-like .nav-submenu .nav-link { 
    padding-left: 2.5rem; 
    font-size: 0.9rem; 
    min-height: 40px;
  }
  
  .sidebar.portal-like .portal-quick { 
    padding-top: 0.5rem; 
    padding-bottom: 1rem;
  }
  
  /* Mobile Header - Fixed at top */
  .content-header { 
    position: fixed !important; 
    top: 0 !important; 
    left: 0 !important; 
    right: 0 !important; 
    z-index: 1030 !important; 
    background: white !important; 
    box-shadow: 0 2px 12px rgba(0,0,0,0.08) !important; 
    margin: 0 !important;
    padding: 0.75rem 1rem !important;
    height: 60px !important;
    display: flex !important;
    align-items: center !important;
    width: 100% !important;
  }
  
  /* Header flex container */
  .content-header > .d-flex {
    width: 100% !important;
    flex-wrap: nowrap !important;
    gap: 0.5rem !important;
  }
  
  /* Left section with hamburger and title */
  .content-header > .d-flex > div:first-child {
    flex: 1 !important;
    min-width: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
  }
  
  /* Page title on mobile */
  .content-header h1,
  .content-header .h3 {
    font-size: 1.1rem !important;
    margin: 0 !important;
    white-space: nowrap !important;
    overflow: hidden !important;
    text-overflow: ellipsis !important;
    line-height: 1.2 !important;
  }
  
  /* Hide year/term badges on very small screens */
  @media (max-width: 575px) {
    #yearTermBadges {
      display: none !important;
    }
  }
  
  /* Right section with action buttons */
  .content-header > .d-flex > div:last-child {
    display: flex !important;
    align-items: center !important;
    gap: 0.5rem !important;
    flex-shrink: 0 !important;
  }
  
  /* Action buttons in header */
  .content-header .btn {
    padding: 0.5rem !important;
    min-width: 40px !important;
    height: 40px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    position: relative !important;
  }
  
  /* Fix notification badge positioning on mobile */
  .content-header .btn .badge {
    position: absolute !important;
    top: -4px !important;
    right: -4px !important;
    font-size: 0.65rem !important;
    padding: 0.25rem 0.4rem !important;
    min-width: 18px !important;
    height: 18px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 9px !important;
    line-height: 1 !important;
  }
  
  /* Ensure badges stay within viewport */
  .content-header .position-relative {
    overflow: visible !important;
  }
  
  /* Hide button text on mobile, show only icons */
  .content-header .btn-outline-secondary {
    font-size: 0 !important;
  }
  
  .content-header .btn-outline-secondary i {
    font-size: 1.1rem !important;
    margin: 0 !important;
  }
  
  /* Profile dropdown - hide text on small screens */
  @media (max-width: 575px) {
    .content-header #profileDropdown {
      font-size: 0 !important;
    }
    
    .content-header #profileDropdown i {
      font-size: 1.1rem !important;
      margin: 0 !important;
    }
  }
  
  .content-wrapper {
    margin-top: 60px !important;
    padding: 1rem 0.75rem !important;
    padding-top: calc(1rem + 2px) !important;
    min-height: calc(100vh - 60px);
  }
  
  /* Enhanced Hamburger Button */
  .hamburger-btn,
  #globalSidebarToggle {
    width: 44px !important;
    height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border-radius: 8px !important;
    background: linear-gradient(135deg, #007bff 0%, #6610f2 100%) !important;
    color: #fff !important;
    border: none !important;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15) !important;
    transition: background-color 0.2s ease, transform 0.2s ease !important;
    -webkit-tap-highlight-color: transparent !important;
    opacity: 1 !important;
    visibility: visible !important;
    position: relative !important;
    z-index: 1040 !important;
    padding: 0 !important;
    margin: 0 !important;
    margin-right: 0.5rem !important;
    flex-shrink: 0 !important;
    pointer-events: auto !important;
    cursor: pointer !important;
    touch-action: manipulation !important;
  }
  
  .hamburger-btn:hover,
  #globalSidebarToggle:hover {
    transform: translateY(-2px) !important;
    box-shadow: 0 6px 18px rgba(0,0,0,0.18) !important;
  }
  
  .hamburger-btn:active,
  #globalSidebarToggle:active {
    transform: scale(0.95) !important;
  }
  
  .hamburger-btn i,
  #globalSidebarToggle i {
    font-size: 1.25rem !important;
    transition: transform 0.3s ease !important;
    color: #fff !important;
    margin: 0 !important;
    pointer-events: none !important;
  }
  
  /* Hamburger animation when sidebar is open */
  .sidebar.mobile-open ~ .content-header .hamburger-btn i {
    transform: rotate(90deg);
  }
  
  /* Enhanced Overlay */
  #sidebarOverlay {
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
    background-color: rgba(0, 0, 0, 0.4);
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }
  
  /* Prevent body scroll when mobile menu is open */
  body.mobile-menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
  }
  
  /* Mobile-optimized cards and tables */
  .card {
    margin-bottom: 1rem !important;
    border-radius: 12px !important;
  }
  
  .card-header {
    padding: 1rem !important;
  }
  
  .card-body {
    padding: 1rem !important;
  }
  
  /* Responsive tables - horizontal scroll */
  .table-responsive {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
    margin-bottom: 1rem;
  }
  
  table {
    font-size: 0.875rem !important;
  }
  
  table th,
  table td {
    padding: 0.75rem 0.5rem !important;
    white-space: normal; /* allow wrapping by default */
    word-break: break-word;
  }
  
  /* Mobile-friendly buttons */
  .btn {
    min-height: 44px;
    padding: 0.625rem 1rem !important;
    font-size: 0.9rem !important;
  }
  
  .btn-sm {
    min-height: 36px;
    padding: 0.5rem 0.75rem !important;
    font-size: 0.8rem !important;
  }
  
  /* Improved form inputs for mobile */
  .form-control,
  .form-select {
    min-height: 44px;
    font-size: 16px !important; /* Prevents zoom on iOS */
    padding: 0.75rem 1rem !important;
  }
  
  .form-label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
  }
  
  /* Better spacing for form groups */
  .mb-3 {
    margin-bottom: 1.25rem !important;
  }
  
  /* Mobile modal improvements */
  .modal-dialog {
    margin: 0.5rem !important;
    max-width: calc(100% - 1rem) !important;
  }
  
  .modal-fullscreen-sm-down {
    max-width: 100% !important;
    margin: 0 !important;
  }
  
  .modal-content {
    border-radius: 12px !important;
  }
  
  .modal-header,
  .modal-footer {
    padding: 1rem !important;
  }
  
  .modal-body {
    padding: 1rem !important;
    max-height: calc(100vh - 200px);
    overflow-y: auto;
  }
  
  /* Stats cards mobile layout */
  .stats-card {
    margin-bottom: 1rem !important;
  }
  
  .stats-number {
    font-size: 2rem !important;
  }
  
  /* Badge improvements */
  .badge {
    font-size: 0.75rem !important;
    padding: 0.35rem 0.65rem !important;
  }
  
  /* Improved session block visibility on mobile */
  .sidebar.portal-like .portal-session {
    padding: 0.75rem 1rem;
    margin: 0.5rem 0;
  }
  
  .sidebar.portal-like .portal-session .session-info {
    font-size: 0.85rem;
  }
  
  /* Quick links mobile spacing */
  .sidebar.portal-like .portal-quick .dropdown-item {
    padding: 0.65rem 1rem;
    font-size: 0.85rem;
    min-height: 40px;
  }
  
  /* Hide desktop-only elements */
  .d-none-mobile {
    display: none !important;
  }
  
  /* Page title adjustments */
  .page-title {
    font-size: 1.5rem !important;
    margin-bottom: 0.75rem !important;
  }
  
  /* Breadcrumb mobile */
  .breadcrumb {
    font-size: 0.85rem;
    margin-bottom: 1rem;
  }

  /* ---- Universal table responsiveness ---- */
  /* Avoid forcing width:100% globally; keep cell vertical align only */
  .table th, .table td { vertical-align: middle; }

  /* On small screens, let Bootstrap tables fill the viewport width */
  @media (max-width: 768px) {
    .table { width: 100%; }
  }

  /* Ensure horizontal scroll on narrow screens */
  .table-responsive, .u-table-scroll {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* Improve readability on mobile */
  @media (max-width: 576px) {
    /* Make main containers fill the viewport width on mobile */
    .content-wrapper,
    .container-fluid {
      width: 100% !important;
      max-width: 100% !important;
      padding-left: 0.75rem !important;
      padding-right: 0.75rem !important;
      margin-left: 0 !important;
      margin-right: 0 !important;
    }

    /* Avoid clipped content when sidebar overlay is present */
    /* Removed: body { overflow-x: hidden !important; } - allows table scroll */
    /* Instead use overflow: hidden on specific non-scroll elements */
    .admissions-actions, .stats-cards, .filter-panel, .filters-form { overflow-x: hidden; }

    .table thead th { white-space: nowrap; }
    .table tbody td { white-space: normal; }
    .table thead th,
    .table tbody td {
      padding: .5rem .6rem;
      font-size: .9rem;
    }
    .table td.text-end .btn { padding: .25rem .5rem; font-size: .8rem; }

    /* Container spacing adjustments for mobile */
    .container-fluid.py-4 { padding-top: 1.25rem !important; padding-bottom: 1.25rem !important; }
    .container-fluid.py-4 > .card { margin-bottom: 1.25rem; }
    .container-fluid.py-4 .card-header, .container-fluid.py-4 .card-body { padding-left: 1rem; padding-right: 1rem; }
    .container-fluid.py-4 .row { margin-left: 0; margin-right: 0; }
  }

  /* Optional sticky header helper */
  .u-table-sticky thead th {
    position: sticky;
    top: 0;
    background: #fff;
    z-index: 1;
  }

  /* Smaller table variant tweaks */
  .table-sm th, .table-sm td { padding: .4rem .5rem; }

}

/* Tablet-specific adjustments (portrait) */
@media (min-width: 576px) and (max-width: 991.98px) {
  .sidebar {
    max-width: 360px;
  }
  
  .content-wrapper {
    padding: 1.25rem 1.5rem !important;
  }
  
  .card-body {
    padding: 1.5rem !important;
  }
}

/* Desktop-specific styles */
@media (min-width: 992px) {
  /* Ensure hamburger is visible on desktop for sidebar collapse toggle */
  .hamburger-btn,
  #globalSidebarToggle {
    display: inline-flex !important;
    width: 40px !important;
    height: 40px !important;
  }
  
  /* Desktop header is relative, not fixed */
  .content-header {
    position: relative !important;
    height: auto !important;
    padding: 1.5rem 2rem !important;
  }
  
  /* No top margin on desktop */
  .content-wrapper {
    margin-top: 0 !important;
    padding: 2rem !important;
  }
}