/* ==========================================================================
   E-Learn OSS — Persian (RTL) University E-Learning Platform
   Modern stylesheet with glassmorphism, smooth transitions & dark-mode support
   ========================================================================== */

/* ---------- §0  Font Import ---------- */
@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700;800&display=swap');

/* ==========================================================================
   §1  CSS Custom Properties (Light / Dark Themes)
   ========================================================================== */
:root {
  /* ---- Colour palette ---- */
  --color-primary:       #0ea5e9;
  --color-primary-light:  #38bdf8;
  --color-primary-dark:   #0284c7;
  --color-primary-rgb:    14, 165, 233;

  --color-accent:        #f43f5e;
  --color-accent-light:  #fb7185;
  --color-accent-dark:   #e11d48;
  --color-accent-rgb:    244, 63, 94;

  --color-success:       #06d6a0;
  --color-success-light: #39e5b6;
  --color-success-dark:  #04a87e;

  --color-warning:       #ffd166;
  --color-warning-light: #ffdd8a;
  --color-warning-dark:  #e6b84d;

  --color-danger:        #ef476f;
  --color-danger-light:  #f2708f;
  --color-danger-dark:   #d6305a;

  --color-dark:          #1a1a2e;
  --color-light:         #f8f9fa;

  /* ---- Surfaces ---- */
  --bg-body:             #f0f2f5;
  --bg-card:             #ffffff;
  --bg-card-rgb:         255, 255, 255;
  --bg-sidebar:          #ffffff;
  --bg-navbar:           rgba(255, 255, 255, 0.72);
  --bg-input:            #ffffff;
  --bg-hover:            rgba(14, 165, 233, 0.06);

  /* ---- Text ---- */
  --text-primary:        #1a1a2e;
  --text-secondary:      #6b7280;
  --text-muted:          #9ca3af;
  --text-inverse:        #ffffff;

  /* ---- Borders ---- */
  --border-color:        #e5e7eb;
  --border-radius-sm:    0.375rem;
  --border-radius:       0.625rem;
  --border-radius-lg:    1rem;
  --border-radius-xl:    1.5rem;
  --border-radius-full:  9999px;

  /* ---- Shadows ---- */
  --shadow-xs:  0 1px 2px  rgba(0, 0, 0, 0.04);
  --shadow-sm:  0 2px 6px  rgba(0, 0, 0, 0.06);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.10);
  --shadow-xl:  0 16px 48px rgba(0, 0, 0, 0.12);

  /* ---- Glassmorphism ---- */
  --glass-bg:       rgba(255, 255, 255, 0.55);
  --glass-border:   rgba(255, 255, 255, 0.25);
  --glass-blur:     12px;

  /* ---- Spacing scale ---- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-8: 3rem;

  /* ---- Typography ---- */
  --font-family: 'Vazirmatn', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs:  0.75rem;
  --font-size-sm:  0.8125rem;
  --font-size-base: 0.9375rem;
  --font-size-lg:  1.125rem;
  --font-size-xl:  1.375rem;
  --font-size-2xl: 1.75rem;
  --font-size-3xl: 2.25rem;
  --line-height:   1.7;

  /* ---- Transitions ---- */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* ---- Layout ---- */
  --sidebar-width:       260px;
  --sidebar-collapsed:   72px;
  --navbar-height:       64px;
  --container-max-width: 1280px;
}

/* ---- Dark Mode ---- */
[data-theme="dark"],
.dark-mode {
  --bg-body:         #0f0f1a;
  --bg-card:         #1a1a2e;
  --bg-card-rgb:     26, 26, 46;
  --bg-sidebar:      #16162a;
  --bg-navbar:       rgba(22, 22, 42, 0.82);
  --bg-input:        #22223a;
  --bg-hover:        rgba(14, 165, 233, 0.12);

  --text-primary:    #e8e8f0;
  --text-secondary:  #9ca3c0;
  --text-muted:      #6b728e;

  --border-color:    #2e2e4a;

  --shadow-sm:  0 2px 6px  rgba(0, 0, 0, 0.25);
  --shadow-md:  0 4px 12px rgba(0, 0, 0, 0.30);
  --shadow-lg:  0 8px 24px rgba(0, 0, 0, 0.35);

  --glass-bg:     rgba(26, 26, 46, 0.60);
  --glass-border: rgba(60, 60, 100, 0.30);
}

/* ==========================================================================
   §2  Reset & Base Styles
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  direction: rtl;
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--text-primary);
  background: var(--bg-body);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--color-primary-dark); }

img { max-width: 100%; height: auto; }

/* ---- Custom Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: var(--border-radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--text-muted) transparent;
}

/* ==========================================================================
   §3  Animations & Keyframes
   ========================================================================== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInScale {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-30px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.08); }
}

@keyframes pulseRing {
  0%   { transform: scale(0.6); opacity: 1; }
  100% { transform: scale(2.2); opacity: 0; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in     { animation: fadeIn 0.5s var(--transition-base) both; }
.animate-fade-in-up  { animation: fadeInUp 0.55s var(--transition-base) both; }
.animate-slide-right { animation: slideInRight 0.4s var(--transition-base) both; }

/* Stagger children */
.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.10s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.20s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.30s; }

/* ==========================================================================
   §4  Layout Helpers
   ========================================================================== */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  margin-right: var(--sidebar-width);
  padding: var(--space-5);
  padding-top: calc(var(--navbar-height) + var(--space-5));
  transition: margin-right var(--transition-base);
  animation: fadeIn 0.4s ease both;
}

.sidebar-collapsed .main-content {
  margin-right: var(--sidebar-collapsed);
}

.container-fluid {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ==========================================================================
   §5  Login Page
   ========================================================================== */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-dark) 0%, #16213e 50%, var(--color-accent-dark) 100%);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--color-primary-rgb), 0.25), transparent 70%);
  top: -120px;
  left: -120px;
  animation: pulse 6s ease-in-out infinite;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--color-accent-rgb), 0.20), transparent 70%);
  bottom: -100px;
  right: -100px;
  animation: pulse 8s ease-in-out infinite 1s;
}

.login-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: var(--space-8);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-xl);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  box-shadow: var(--shadow-xl);
  animation: fadeInScale 0.6s ease both;
}

.login-card .logo {
  display: block;
  margin: 0 auto var(--space-5);
  max-height: 56px;
}

.login-card h1,
.login-card .login-title {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  text-align: center;
  color: #fff;
  margin-bottom: var(--space-1);
}

.login-card .login-subtitle {
  text-align: center;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: var(--space-6);
  font-size: var(--font-size-sm);
}

/* ==========================================================================
   §6  Navbar
   ========================================================================== */
.header-navbar,
.app-navbar {
  position: fixed;
  top: 0;
  right: var(--sidebar-width);
  left: 0;
  height: var(--navbar-height);
  z-index: 1030;
  display: flex;
  align-items: center;
  padding: 0 var(--space-5);
  background: var(--bg-navbar);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition: right var(--transition-base);
}

.sidebar-collapsed .header-navbar,
.sidebar-collapsed .app-navbar {
  right: var(--sidebar-collapsed);
}

.navbar-container,
.navbar-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.header-navbar-shadow {
  display: block;
  position: fixed;
  top: var(--navbar-height);
  right: 0;
  left: 0;
  height: 8px;
  z-index: 1029;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.04), transparent);
  pointer-events: none;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.nav-item1,
.navbar-nav .nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.nav-link:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.nav-link .ficon {
  font-size: 1.3rem;
}

/* ---- Search ---- */
.search-input,
.navbar-search input {
  height: 40px;
  padding: 0 var(--space-4);
  padding-right: 2.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-full);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  width: 240px;
  transition: all var(--transition-base);
}

.search-input:focus,
.navbar-search input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.15);
  width: 300px;
}

/* ---- Notification dropdown ---- */
.dropdown-notification .dropdown-menu,
.dropdown-menu-media {
  width: 340px;
  max-height: 420px;
  overflow-y: auto;
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  background: var(--bg-card);
  animation: fadeInScale 0.2s ease both;
}

.dropdown-header {
  padding: var(--space-4);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dropdown-menu-media .media {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition-fast);
}

.dropdown-menu-media .media:hover {
  background: var(--bg-hover);
}

/* ==========================================================================
   §7  Sidebar
   ========================================================================== */
.sidebar,
.main-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: 1040;
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  transition: width var(--transition-base), transform var(--transition-base);
  overflow: hidden;
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--navbar-height);
  padding: 0 var(--space-4);
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.sidebar-header .logo-text {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  white-space: nowrap;
  transition: opacity var(--transition-base);
}

.sidebar-collapsed .sidebar,
.sidebar-collapsed .main-menu {
  width: var(--sidebar-collapsed);
}

.sidebar-collapsed .logo-text,
.sidebar-collapsed .menu-title,
.sidebar-collapsed .menu-text,
.sidebar-collapsed .nav-section-title {
  opacity: 0;
  visibility: hidden;
}

/* ---- Menu Items ---- */
.sidebar-menu,
.navigation {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-3) 0;
  list-style: none;
}

.sidebar-menu li a,
.navigation li a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  margin: 2px var(--space-2);
  border-radius: var(--border-radius);
  color: var(--text-secondary);
  font-size: var(--font-size-sm);
  font-weight: 500;
  white-space: nowrap;
  transition: all var(--transition-fast);
}

.sidebar-menu li a:hover,
.navigation li a:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.sidebar-menu li.active > a,
.navigation li.is-active > a,
.navigation li.active > a {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 4px 12px rgba(var(--color-primary-rgb), 0.30);
}

.sidebar-menu li a .icon,
.navigation li a i {
  font-size: 1.25rem;
  flex-shrink: 0;
  width: 24px;
  text-align: center;
}

.nav-section-title {
  padding: var(--space-4) var(--space-4) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---- Sidebar Toggle ---- */
.menu-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--border-radius-sm);
  border: none;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

/* ==========================================================================
   §8  Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.5rem 1.25rem;
  border: none;
  border-radius: var(--border-radius);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  box-shadow: 0 4px 14px rgba(var(--color-primary-rgb), 0.30);
}
.btn-primary:hover {
  box-shadow: 0 6px 20px rgba(var(--color-primary-rgb), 0.40);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  color: #fff;
  box-shadow: 0 4px 14px rgba(var(--color-accent-rgb), 0.30);
}
.btn-accent:hover {
  box-shadow: 0 6px 20px rgba(var(--color-accent-rgb), 0.40);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success), var(--color-success-light));
  color: #fff;
}

.btn-warning {
  background: linear-gradient(135deg, var(--color-warning), var(--color-warning-light));
  color: var(--color-dark);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger), var(--color-danger-light));
  color: #fff;
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--border-color);
  color: var(--text-primary);
}
.btn-outline:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--bg-hover);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.btn-sm { padding: 0.35rem 0.85rem; font-size: var(--font-size-xs); }
.btn-lg { padding: 0.7rem 1.75rem; font-size: var(--font-size-base); }
.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--border-radius);
}

/* ==========================================================================
   §9  Form Inputs & Floating Labels
   ========================================================================== */
.form-group {
  position: relative;
  margin-bottom: var(--space-5);
}

.form-control {
  display: block;
  width: 100%;
  height: 48px;
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* Floating label */
.form-floating {
  position: relative;
}

.form-floating .form-control {
  padding-top: 1.5rem;
  padding-bottom: 0.35rem;
}

.form-floating label {
  position: absolute;
  top: 50%;
  right: 1rem;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: var(--font-size-sm);
  pointer-events: none;
  transition: all var(--transition-fast);
  transform-origin: right center;
}

.form-floating .form-control:focus ~ label,
.form-floating .form-control:not(:placeholder-shown) ~ label {
  top: 0.55rem;
  transform: translateY(0) scale(0.82);
  color: var(--color-primary);
}

textarea.form-control {
  min-height: 120px;
  resize: vertical;
}

/* Login-specific inputs (white text on glass) */
.login-card .form-control {
  background: rgba(255, 255, 255, 0.10);
  border-color: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.login-card .form-control::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.login-card .form-control:focus {
  border-color: var(--color-primary-light);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.25);
}

/* ==========================================================================
   §10  Cards — Dashboard & Course Cards
   ========================================================================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3,
.card-header .card-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin: 0;
}

.card-body { padding: var(--space-5); }
.card-footer {
  padding: var(--space-3) var(--space-5);
  border-top: 1px solid var(--border-color);
}

/* ---- Course Card ---- */
.course-card {
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
}

.course-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.course-card .card-img-wrapper {
  position: relative;
  overflow: hidden;
  height: 180px;
}

.course-card .card-img-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.course-card:hover .card-img-wrapper img {
  transform: scale(1.06);
}

.course-card .card-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(0, 0, 0, 0.65) 100%);
  display: flex;
  align-items: flex-end;
  padding: var(--space-4);
}

.course-card .card-img-overlay .course-title {
  color: #fff;
  font-weight: 700;
  font-size: var(--font-size-base);
}

/* ---- Stat Card ---- */
.stat-card {
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.stat-card .stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-card .stat-icon.primary { background: rgba(var(--color-primary-rgb), 0.12); color: var(--color-primary); }
.stat-card .stat-icon.accent  { background: rgba(var(--color-accent-rgb), 0.12);  color: var(--color-accent); }

.stat-card .stat-value {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  line-height: 1.2;
}

.stat-card .stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

/* ==========================================================================
   §11  Tables
   ========================================================================== */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--border-radius-lg);
  border: 1px solid var(--border-color);
}

table,
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.table thead th {
  padding: var(--space-3) var(--space-4);
  text-align: right;
  font-weight: 600;
  color: var(--text-secondary);
  background: var(--bg-body);
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.table tbody td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table tbody tr {
  transition: background var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--bg-hover);
}

/* Striped */
.table-striped tbody tr:nth-child(even) {
  background: rgba(var(--color-primary-rgb), 0.02);
}
.table-striped tbody tr:nth-child(even):hover {
  background: var(--bg-hover);
}

/* ==========================================================================
   §12  Badges & Notifications
   ========================================================================== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.15em 0.55em;
  font-size: var(--font-size-xs);
  font-weight: 600;
  border-radius: var(--border-radius-full);
  line-height: 1.5;
}

.badge-primary { background: rgba(var(--color-primary-rgb), 0.12); color: var(--color-primary); }
.badge-success { background: rgba(6, 214, 160, 0.12); color: var(--color-success-dark); }
.badge-warning { background: rgba(255, 209, 102, 0.18); color: #b8860b; }
.badge-danger  { background: rgba(239, 71, 111, 0.12); color: var(--color-danger); }

.badge-pill { border-radius: var(--border-radius-full); }

/* Counter badge (on nav icons) */
.badge-up {
  position: absolute;
  top: 2px;
  left: 2px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.65rem;
  background: var(--color-danger);
  color: #fff;
  border-radius: var(--border-radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

/* Pulse ring for new notifications */
.badge-up.has-new::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--color-danger);
  animation: pulseRing 1.5s ease-out infinite;
}

.notification-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-danger);
  display: inline-block;
  animation: pulse 2s ease-in-out infinite;
}

/* ==========================================================================
   §13  Modals
   ========================================================================== */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 1055;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  pointer-events: none;
}

.modal.show { pointer-events: auto; }

.modal-dialog {
  width: 100%;
  max-width: 540px;
  background: var(--bg-card);
  border-radius: var(--border-radius-xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  transform: scale(0.92) translateY(20px);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.modal.show .modal-dialog {
  transform: scale(1) translateY(0);
  opacity: 1;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-5);
  border-bottom: 1px solid var(--border-color);
}

.modal-header .modal-title {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.modal-body { padding: var(--space-5); }

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-top: 1px solid var(--border-color);
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: var(--bg-hover);
  color: var(--text-secondary);
  border-radius: var(--border-radius-sm);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.modal-close:hover { background: rgba(239, 71, 111, 0.10); color: var(--color-danger); }

/* ==========================================================================
   §14  Chat Interface
   ========================================================================== */
.chat-wrapper {
  display: flex;
  height: calc(100vh - var(--navbar-height) - var(--space-6));
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
}

/* Contact list */
.chat-sidebar {
  width: 300px;
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}

.chat-sidebar-header {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-color);
}

.chat-contact {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  transition: background var(--transition-fast);
  border-bottom: 1px solid var(--border-color);
}

.chat-contact:hover,
.chat-contact.active {
  background: var(--bg-hover);
}

.chat-contact .avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.chat-contact .contact-name {
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.chat-contact .contact-preview {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}

/* Messages area */
.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.chat-bubble {
  max-width: 70%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--border-radius-lg);
  font-size: var(--font-size-sm);
  line-height: 1.6;
  animation: fadeInUp 0.25s ease both;
  position: relative;
}

.chat-bubble.sent {
  align-self: flex-start;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: #fff;
  border-bottom-right-radius: 4px;
  border-bottom-left-radius: var(--border-radius-lg);
}

.chat-bubble.received {
  align-self: flex-end;
  background: var(--bg-body);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: var(--border-radius-lg);
}

.chat-bubble .bubble-time {
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.55);
  margin-top: var(--space-1);
  display: block;
}

.chat-bubble.received .bubble-time {
  color: var(--text-muted);
}

/* Chat input */
.chat-input-wrapper {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-top: 1px solid var(--border-color);
}

.chat-input-wrapper input {
  flex: 1;
  height: 44px;
  padding: 0 var(--space-4);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius-full);
  background: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast);
}

.chat-input-wrapper input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.chat-input-wrapper .btn-send {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  border: none;
  font-size: 1.15rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast), background var(--transition-fast);
}

.chat-input-wrapper .btn-send:hover {
  background: var(--color-primary-dark);
  transform: scale(1.08);
}

/* ==========================================================================
   §15  Tabs (Underline Style)
   ========================================================================== */
.tabs,
.nav-tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 2px solid var(--border-color);
  list-style: none;
}

.tab-item,
.nav-tabs .nav-item {
  position: relative;
}

.tab-link,
.nav-tabs .nav-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab-link:hover,
.nav-tabs .nav-link:hover {
  color: var(--color-primary);
}

.tab-link.active,
.nav-tabs .nav-link.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-content { padding-top: var(--space-5); }

/* ==========================================================================
   §16  Pagination (Pill Style)
   ========================================================================== */
.pagination {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  direction: ltr; /* numbers read LTR */
}

.pagination .page-item .page-link {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 var(--space-2);
  border-radius: var(--border-radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  background: transparent;
  border: none;
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.pagination .page-item .page-link:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

.pagination .page-item.active .page-link {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(var(--color-primary-rgb), 0.30);
}

.pagination .page-item.disabled .page-link {
  opacity: 0.4;
  pointer-events: none;
}

/* ==========================================================================
   §17  Toast Notifications
   ========================================================================== */
.toast-container {
  position: fixed;
  top: var(--space-5);
  left: var(--space-5);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  min-width: 320px;
  max-width: 420px;
  padding: var(--space-4);
  background: var(--bg-card);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
  border-right: 4px solid var(--color-primary);
  pointer-events: auto;
  animation: slideInLeft 0.35s ease both;
}

.toast.toast-success { border-right-color: var(--color-success); }
.toast.toast-warning { border-right-color: var(--color-warning); }
.toast.toast-danger  { border-right-color: var(--color-danger); }

.toast-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}

.toast-body {
  flex: 1;
}

.toast-title {
  font-weight: 600;
  font-size: var(--font-size-sm);
  margin-bottom: 2px;
}

.toast-message {
  font-size: var(--font-size-xs);
  color: var(--text-secondary);
}

.toast-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0;
  transition: color var(--transition-fast);
}

.toast-close:hover { color: var(--text-primary); }

/* ==========================================================================
   §18  Breadcrumbs
   ========================================================================== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-4);
}

.breadcrumb li + li::before {
  content: '/';
  margin-left: var(--space-2);
  color: var(--text-muted);
}

.breadcrumb a {
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover { color: var(--color-primary); }

.breadcrumb .current {
  color: var(--text-primary);
  font-weight: 600;
}

/* ==========================================================================
   §19  File Upload Area
   ========================================================================== */
.file-upload-area {
  border: 2px dashed var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: var(--space-8) var(--space-4);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  background: transparent;
}

.file-upload-area:hover,
.file-upload-area.drag-over {
  border-color: var(--color-primary);
  background: rgba(var(--color-primary-rgb), 0.04);
}

.file-upload-area .upload-icon {
  font-size: 2.5rem;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

.file-upload-area .upload-text {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.file-upload-area .upload-text strong {
  color: var(--color-primary);
}

.file-upload-area .upload-hint {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-top: var(--space-2);
}

/* ==========================================================================
   §20  Loading Spinner
   ========================================================================== */
.spinner,
.spinner-border {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.spinner-lg {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

/* Full-page loader */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-body);
}

.page-loader .spinner { width: 48px; height: 48px; }

/* Skeleton shimmer */
.skeleton {
  background: linear-gradient(90deg, var(--border-color) 25%, rgba(var(--bg-card-rgb), 0.6) 50%, var(--border-color) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--border-radius-sm);
}

.skeleton-line {
  height: 14px;
  margin-bottom: var(--space-2);
}

.skeleton-circle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
}

/* ==========================================================================
   §21  Utility Classes
   ========================================================================== */
.text-primary   { color: var(--color-primary)  !important; }
.text-accent    { color: var(--color-accent)   !important; }
.text-success   { color: var(--color-success)  !important; }
.text-warning   { color: var(--color-warning)  !important; }
.text-danger    { color: var(--color-danger)   !important; }
.text-muted     { color: var(--text-muted)     !important; }
.text-secondary { color: var(--text-secondary) !important; }

.text-bold-500 { font-weight: 500; }
.text-bold-600 { font-weight: 600; }
.text-bold-700 { font-weight: 700; }

.text-center { text-align: center; }
.text-right  { text-align: right; }
.text-left   { text-align: left; }

.bg-white   { background: #fff !important; }
.bg-light   { background: var(--bg-body) !important; }
.bg-primary { background: var(--color-primary) !important; color: #fff; }

.rounded     { border-radius: var(--border-radius) !important; }
.rounded-lg  { border-radius: var(--border-radius-lg) !important; }
.rounded-xl  { border-radius: var(--border-radius-xl) !important; }
.rounded-full{ border-radius: var(--border-radius-full) !important; }

.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }

.d-flex     { display: flex; }
.d-block    { display: block; }
.d-none     { display: none; }
.flex-column { flex-direction: column; }
.align-items-center     { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center  { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }

.w-100 { width: 100%; }
.overflow-hidden { overflow: hidden; }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---- Avatars ---- */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.avatar-sm { width: 28px; height: 28px; }
.avatar-lg { width: 48px; height: 48px; }
.avatar-xl { width: 64px; height: 64px; }

/* Online indicator */
.avatar-wrapper {
  position: relative;
  display: inline-block;
}

.avatar-wrapper .status-indicator {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--bg-card);
}

.status-indicator.online  { background: var(--color-success); }
.status-indicator.offline { background: var(--text-muted); }
.status-indicator.busy    { background: var(--color-danger); }

/* ---- Divider ---- */
.divider {
  height: 1px;
  background: var(--border-color);
  margin: var(--space-4) 0;
}

/* ==========================================================================
   §22  Dropdown Menus (Generic)
   ========================================================================== */
.dropdown { position: relative; }

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  z-index: 1000;
  min-width: 180px;
  padding: var(--space-2);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: all var(--transition-fast);
}

.dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu a,
.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-sm);
  transition: background var(--transition-fast);
}

.dropdown-menu a:hover,
.dropdown-item:hover {
  background: var(--bg-hover);
  color: var(--color-primary);
}

/* ==========================================================================
   §23  Alert / Info Boxes
   ========================================================================== */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--border-radius);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-4);
}

.alert-info    { background: rgba(var(--color-primary-rgb), 0.08); color: var(--color-primary-dark); border-right: 3px solid var(--color-primary); }
.alert-success { background: rgba(6, 214, 160, 0.08); color: var(--color-success-dark); border-right: 3px solid var(--color-success); }
.alert-warning { background: rgba(255, 209, 102, 0.12); color: #8a6914; border-right: 3px solid var(--color-warning); }
.alert-danger  { background: rgba(239, 71, 111, 0.08); color: var(--color-danger-dark); border-right: 3px solid var(--color-danger); }

/* ==========================================================================
   §24  Progress Bar
   ========================================================================== */
.progress {
  height: 8px;
  background: var(--border-color);
  border-radius: var(--border-radius-full);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  border-radius: var(--border-radius-full);
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transition: width var(--transition-slow);
}

.progress-bar.success { background: linear-gradient(90deg, var(--color-success), var(--color-success-light)); }
.progress-bar.accent  { background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light)); }

/* ==========================================================================
   §25  Responsive Breakpoints (Mobile-First)
   ========================================================================== */

/* ---- Extra-small: <576px ---- */
@media (max-width: 575.98px) {
  .main-content {
    margin-right: 0;
    padding: var(--space-4);
    padding-top: calc(var(--navbar-height) + var(--space-4));
  }

  .header-navbar,
  .app-navbar {
    right: 0;
  }

  .sidebar,
  .main-menu {
    transform: translateX(100%);
  }

  .sidebar.open,
  .main-menu.open,
  .vertical-overlay-menu .main-menu {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .chat-wrapper { flex-direction: column; height: auto; }
  .chat-sidebar { width: 100%; max-height: 240px; border-left: none; border-bottom: 1px solid var(--border-color); }
  .chat-bubble  { max-width: 88%; }

  .modal-dialog { margin: var(--space-3); }
  .toast { min-width: auto; max-width: calc(100vw - 2rem); }
  .search-input,
  .navbar-search input { width: 160px; }
  .search-input:focus,
  .navbar-search input:focus { width: 200px; }

  .d-xs-none { display: none !important; }
  .hidden-xs  { display: none !important; }
}

/* ---- Small: ≥576px ---- */
@media (min-width: 576px) {
  .d-sm-flex  { display: flex !important; }
  .d-sm-block { display: block !important; }
  .d-sm-none  { display: none !important; }
}

/* ---- Medium: ≥768px ---- */
@media (min-width: 768px) {
  .d-md-flex  { display: flex !important; }
  .d-md-block { display: block !important; }
  .d-md-none  { display: none !important; }
}

/* ---- Large: ≥992px ---- */
@media (min-width: 992px) {
  .sidebar,
  .main-menu {
    transform: translateX(0);
  }

  .d-lg-flex  { display: flex !important; }
  .d-lg-block { display: block !important; }
  .d-lg-none  { display: none !important; }
}

/* ---- Extra-large: ≥1200px ---- */
@media (min-width: 1200px) {
  .d-xl-flex  { display: flex !important; }
  .d-xl-block { display: block !important; }
  .d-xl-none  { display: none !important; }
}

/* ---- Tablet sidebar overlay (768 – 991) ---- */
@media (min-width: 768px) and (max-width: 991.98px) {
  .sidebar,
  .main-menu {
    transform: translateX(100%);
    position: fixed;
    z-index: 1050;
  }

  .sidebar.open,
  .main-menu.open {
    transform: translateX(0);
    box-shadow: var(--shadow-xl);
  }

  .main-content {
    margin-right: 0;
  }

  .header-navbar,
  .app-navbar {
    right: 0;
  }
}

/* ==========================================================================
   §26  Print
   ========================================================================== */
@media print {
  .sidebar,
  .main-menu,
  .header-navbar,
  .app-navbar,
  .toast-container,
  .no-print { display: none !important; }

  .main-content {
    margin: 0;
    padding: 0;
  }

  body {
    background: #fff;
    color: #000;
  }
}

/* ==========================================================================
   §27  Course-Page & Meeting-List Specific Helpers
   ========================================================================== */
.course-page-header {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: var(--space-8) var(--space-5);
  border-radius: var(--border-radius-xl);
  margin-bottom: var(--space-5);
  position: relative;
  overflow: hidden;
}

.course-page-header::after {
  content: '';
  position: absolute;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  top: -80px;
  left: -80px;
}

.meeting-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  transition: box-shadow var(--transition-base), transform var(--transition-base);
  margin-bottom: var(--space-3);
}

.meeting-item:hover {
  box-shadow: var(--shadow-sm);
  transform: translateY(-2px);
}

.meeting-item .meeting-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--border-radius);
  background: rgba(var(--color-primary-rgb), 0.10);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.meeting-item .meeting-info { flex: 1; }
.meeting-item .meeting-title { font-weight: 600; font-size: var(--font-size-sm); }
.meeting-item .meeting-time  { font-size: var(--font-size-xs); color: var(--text-muted); }

/* ==========================================================================
   §28  List Group (Bootstrap-compatible)
   ========================================================================== */
.list-group {
  list-style: none;
  border-radius: var(--border-radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.list-group-item {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: background var(--transition-fast);
}

.list-group-item:last-child { border-bottom: none; }

.list-group-item:hover { background: var(--bg-hover); }

/* ==========================================================================
   §29  Accessibility & Focus States
   ========================================================================== */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:focus-visible,
.form-control:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* Skip-to-main link */
.skip-link {
  position: absolute;
  top: -100%;
  right: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: #fff;
  border-radius: 0 0 var(--border-radius) var(--border-radius);
  z-index: 9999;
  transition: top var(--transition-fast);
}

.skip-link:focus { top: 0; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   §30  Boxicons Integration Helpers
   ========================================================================== */
.ficon {
  font-size: 1.25rem;
  vertical-align: middle;
  line-height: 1;
}

[class*="bx-"] { vertical-align: middle; }