/* AITS and Online Classes - Premium Stylesheet */
/* Developed with Vanilla CSS for Maximum Visual Excellence & Control */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
  /* Color Palette */
  --primary-blue: #2563eb;
  --primary-purple: #7c3aed;
  --primary-blue-rgb: 37, 99, 235;
  --primary-purple-rgb: 124, 58, 237;
  
  --gradient-main: linear-gradient(135deg, #1e3c72 0%, #2a5298 50%, #7c3aed 100%);
  --gradient-accent: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
  --gradient-header: linear-gradient(135deg, rgba(239, 246, 255, 0.95) 0%, rgba(245, 243, 255, 0.95) 100%);
  
  --bg-primary: #f8fafc;
  --bg-sidebar: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-white: #ffffff;
  
  --border-color: rgba(226, 232, 240, 0.7);
  --border-color-glow: rgba(124, 58, 237, 0.3);
  
  /* Layout Dimensions */
  --sidebar-width: 260px;
  --sidebar-collapsed-width: 80px;
  --header-height: 75px;
  
  /* UI Atoms */
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 4px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 40px -10px rgba(31, 38, 135, 0.12);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.06);
  --glass-border: 1px solid rgba(255, 255, 255, 0.4);
  
  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  display: flex;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
}

button, input, select, textarea {
  font-family: inherit;
  outline: none;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* Glassmorphic Cards Utilities */
.glass-panel {
  background: var(--bg-card);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px) saturate(180%);
  border: var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: var(--radius-lg);
}

.glass-panel-hover {
  transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.glass-panel-hover:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  border-color: var(--border-color-glow);
}

/* Scrollbar customization */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-purple);
}

/* Responsive Grid / Page Skeleton */
.app-container {
  display: flex;
  width: 100vw;
  min-height: 100vh;
  position: relative;
}

/* --- LEFT SIDE NAVIGATION PANEL --- */
aside.sidebar {
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  position: fixed;
  left: 0;
  top: 0;
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: width var(--transition-normal);
  box-shadow: var(--shadow-sm);
  overflow-y: auto;
  overflow-x: hidden;
}

aside.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
}

.sidebar.collapsed .sidebar-header {
  padding: 20px;
  justify-content: center;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
  font-weight: 800;
  font-size: 1.25rem;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.3);
}

.logo-text {
  font-size: 1.15rem;
  font-weight: 700;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  transition: opacity var(--transition-fast);
}

.sidebar.collapsed .logo-text,
.sidebar.collapsed .sidebar-toggle-btn {
  display: none;
}

.sidebar-toggle-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  width: 28px;
  height: 28px;
  transition: background var(--transition-fast);
}

.sidebar-toggle-btn:hover {
  background: var(--bg-primary);
}

.nav-links {
  padding: 20px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex-grow: 1;
}

.sidebar.collapsed .nav-links {
  padding: 20px 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.sidebar.collapsed .nav-item {
  justify-content: center;
  padding: 12px;
}

.nav-item svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.nav-item span {
  font-size: 0.95rem;
  transition: opacity var(--transition-fast);
}

.sidebar.collapsed .nav-item span {
  display: none;
}

.nav-item:hover {
  background: rgba(37, 99, 235, 0.05);
  color: var(--primary-blue);
}

.nav-item:hover svg {
  transform: scale(1.1);
}

.nav-item.active {
  background: var(--gradient-accent);
  color: var(--text-white);
  box-shadow: 0 4px 15px rgba(124, 58, 237, 0.25);
}

.sidebar-profile {
  padding: 20px;
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar.collapsed .sidebar-profile {
  padding: 16px 8px;
  justify-content: center;
}

.profile-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--primary-purple);
  box-shadow: var(--shadow-sm);
  background: var(--bg-primary);
}

.profile-info {
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar.collapsed .profile-info {
  display: none;
}

.profile-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.profile-rank {
  font-size: 0.75rem;
  color: var(--primary-purple);
  font-weight: 500;
}

/* --- MAIN CONTAINER LAYOUT --- */
.main-wrapper {
  margin-left: var(--sidebar-width);
  width: calc(100% - var(--sidebar-width));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: margin-left var(--transition-normal), width var(--transition-normal);
  position: relative;
}

.sidebar-collapsed + .main-wrapper {
  margin-left: var(--sidebar-collapsed-width);
  width: calc(100% - var(--sidebar-collapsed-width));
}

/* --- TOP NAVIGATION BAR (75px HEIGHT) --- */
.top-navbar {
  height: var(--header-height);
  background: var(--gradient-header);
  border-bottom: 1px solid var(--border-color);
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 99;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.navbar-left {
  display: flex;
  align-items: center;
}

.navbar-portal-title {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.navbar-center-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-link-btn {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.nav-link-btn:hover, .nav-link-btn.active {
  color: var(--primary-blue);
  background: rgba(37, 99, 235, 0.05);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.btn-login-reg {
  background: var(--gradient-accent);
  color: var(--text-white);
  border: none;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.15);
}

.btn-login-reg:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 15px rgba(124, 58, 237, 0.25);
}

.modal-tab-btn.active {
  color: var(--primary-purple) !important;
  border-bottom: 2px solid var(--primary-purple) !important;
}

.modal-tab-btn:hover {
  color: var(--primary-blue) !important;
}

.header-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.header-title-section {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.header-title {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.header-tagline {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  letter-spacing: 0.5px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-bar-container {
  position: relative;
  width: 280px;
}

.search-input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.search-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.search-icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  width: 16px;
  height: 16px;
}

.header-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  position: relative;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-sm);
}

.header-btn:hover {
  background: var(--bg-primary);
  color: var(--primary-purple);
}

.btn-badge {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #ef4444;
  color: var(--text-white);
  font-size: 0.7rem;
  font-weight: 700;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--bg-sidebar);
}

/* Header Statistics Ticker Line */
.header-stats-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding-top: 15px;
  border-top: 1px dashed rgba(124, 58, 237, 0.15);
}

.header-ticker-container {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--primary-purple);
  font-size: 0.88rem;
  font-weight: 600;
  overflow: hidden;
}

.ticker-label {
  background: rgba(124, 58, 237, 0.1);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
}

.ticker-text-wrapper {
  overflow: hidden;
  position: relative;
  height: 20px;
  width: 350px;
}

.ticker-text {
  position: absolute;
  width: 100%;
  animation: ticker-slide 12s infinite linear;
  white-space: nowrap;
  color: var(--text-secondary);
}

@keyframes ticker-slide {
  0% { transform: translateY(100%); opacity: 0; }
  5% { transform: translateY(0); opacity: 1; }
  30% { transform: translateY(0); opacity: 1; }
  35% { transform: translateY(-100%); opacity: 0; }
  100% { transform: translateY(-100%); opacity: 0; }
}

.header-quick-stats {
  display: flex;
  align-items: center;
  gap: 30px;
}

.header-stat-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-stat-val {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.header-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

/* --- MAIN CONTENT PANEL --- */
.content-canvas {
  padding: 40px;
  flex-grow: 1;
  width: 100%;
  position: relative;
}

/* View Section Boilerplate */
.view-section {
  display: none;
  animation: fadeIn var(--transition-slow);
  width: 100%;
}

.view-section.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* --- MODULE STYLING: HOME LANDING VIEW --- */
.home-hero {
  padding: 45px;
  border-radius: var(--radius-lg);
  background: var(--gradient-main);
  color: var(--text-white);
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin-bottom: 40px;
}

.home-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -30%;
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, rgba(255,255,255,0) 70%);
  pointer-events: none;
}

.hero-body {
  position: relative;
  z-index: 2;
  max-width: 650px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.hero-badge {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(10px);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-title {
  font-size: 2.85rem;
  font-weight: 800;
  line-height: 1.1;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.hero-subtitle {
  font-size: 1.1rem;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  margin-top: 12px;
}

.btn-primary {
  background: var(--text-white);
  color: var(--primary-blue);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  transition: all var(--transition-fast);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  background: #f8fafc;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-white);
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-md);
  border: var(--glass-border);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.home-section-title {
  font-size: 1.45rem;
  color: var(--text-primary);
  margin-bottom: 24px;
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
}

.home-section-title::after {
  content: '';
  flex-grow: 1;
  height: 1px;
  background: var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 50px;
}

.feature-card {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  cursor: pointer;
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-white);
}

.feature-icon-blue {
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.3);
}

.feature-icon-purple {
  background: linear-gradient(135deg, #a855f7 0%, #7e22ce 100%);
  box-shadow: 0 4px 10px rgba(168, 85, 247, 0.3);
}

.feature-icon-pink {
  background: linear-gradient(135deg, #ec4899 0%, #be185d 100%);
  box-shadow: 0 4px 10px rgba(236, 72, 153, 0.3);
}

.feature-icon-teal {
  background: linear-gradient(135deg, #14b8a6 0%, #0f766e 100%);
  box-shadow: 0 4px 10px rgba(20, 184, 166, 0.3);
}

.feature-card h3 {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.feature-card-arrow {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-purple);
  opacity: 0;
  transform: translateX(-5px);
  transition: all var(--transition-fast);
}

.feature-card:hover .feature-card-arrow {
  opacity: 1;
  transform: translateX(0);
}

.testimonials-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 50px;
}

@media(max-width: 900px) {
  .testimonials-section {
    grid-template-columns: 1fr;
  }
}

.testimonial-card {
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.testimonial-stars {
  color: #eab308;
  display: flex;
  gap: 4px;
}

.testimonial-quote {
  font-style: italic;
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.testimonial-details h4 {
  font-size: 0.92rem;
  color: var(--text-primary);
}

.testimonial-details span {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* --- MODULE STYLING: USER DASHBOARD VIEW --- */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

@media(max-width: 1024px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 30px;
}

@media(max-width: 768px) {
  .dashboard-stats-strip {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-metric-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.metric-label-group {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

.metric-label-group svg {
  width: 18px;
  height: 18px;
  color: var(--primary-blue);
}

.metric-value {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
}

.metric-delta {
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 4px;
}

.delta-positive { color: #10b981; }
.delta-negative { color: #ef4444; }

.dashboard-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.dashboard-panel-header h2 {
  font-size: 1.3rem;
}

.dashboard-panel-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-blue);
  cursor: pointer;
}

.dashboard-panel-link:hover {
  text-decoration: underline;
}

.recent-activity-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.activity-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.activity-item:hover {
  transform: translateX(4px);
  border-color: var(--primary-purple);
}

.activity-meta {
  display: flex;
  align-items: center;
  gap: 14px;
}

.activity-icon-wrapper {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.act-test { background: rgba(37, 99, 235, 0.1); color: var(--primary-blue); }
.act-video { background: rgba(124, 58, 237, 0.1); color: var(--primary-purple); }
.act-ebook { background: rgba(236, 72, 153, 0.1); color: #ec4899; }

.activity-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.activity-title {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
}

.activity-subtitle {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.activity-time {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Progress Ring Component */
.progress-ring-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.progress-rings-container {
  display: flex;
  gap: 24px;
  justify-content: center;
  margin-top: 10px;
}

.progress-circle-wrap {
  position: relative;
  width: 100px;
  height: 100px;
}

.progress-circle-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.progress-circle-bg {
  fill: none;
  stroke: var(--border-color);
  stroke-width: 8;
}

.progress-circle-fill {
  fill: none;
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dashoffset var(--transition-slow);
}

.circle-p-blue { stroke: var(--primary-blue); }
.circle-p-purple { stroke: var(--primary-purple); }

.progress-circle-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
}

.progress-circle-labels {
  display: flex;
  flex-direction: column;
  gap: 8px;
  justify-content: center;
}

.progress-label-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.progress-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

/* --- MODULE STYLING: QUIZ ENGINE & AITS --- */
.test-catalog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.test-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.test-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.test-category {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-blue);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.78rem;
  font-weight: 600;
}

.test-difficulty {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
}

.diff-Hard { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.diff-Medium { background: rgba(234, 179, 8, 0.1); color: #ca8a04; }
.diff-Easy { background: rgba(16, 185, 129, 0.1); color: #10b981; }

.test-title {
  font-size: 1.15rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.test-syllabus {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
  border-left: 2px solid var(--primary-purple);
  padding-left: 10px;
}

.test-meta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  border-top: 1px dashed var(--border-color);
  padding-top: 14px;
}

.test-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.test-meta-item svg {
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.btn-start-test {
  width: 100%;
  background: var(--gradient-accent);
  color: var(--text-white);
  border: none;
  padding: 10px 0;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 10px rgba(124, 58, 237, 0.2);
}

.btn-start-test:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(124, 58, 237, 0.35);
}

/* --- THE EXAM HALL ENVIRONMENT --- */
.exam-layout {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: var(--bg-primary);
  z-index: 1000;
  display: grid;
  grid-template-rows: 70px 1fr 60px;
  animation: fadeIn var(--transition-fast);
}

.exam-header {
  background: var(--bg-sidebar);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
}

.exam-title-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.exam-subject-badge {
  background: rgba(124, 58, 237, 0.1);
  color: var(--primary-purple);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
}

.exam-clock-container {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: monospace;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  background: var(--bg-primary);
  padding: 6px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
}

.exam-clock-container.low-time {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.3);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.1);
  animation: pulse-border 1.5s infinite;
}

@keyframes pulse-border {
  0% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4); }
  70% { box-shadow: 0 0 0 8px rgba(239, 68, 68, 0); }
  100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

.exam-body {
  display: grid;
  grid-template-columns: 1fr 320px;
  overflow: hidden;
}

.exam-workspace {
  padding: 30px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.exam-question-card {
  padding: 30px;
  min-height: 250px;
}

.question-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.question-num {
  font-size: 1.25rem;
  font-weight: 700;
}

.question-marks {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.question-body {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 30px;
}

.question-options-group {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.option-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.option-item:hover {
  background: rgba(37, 99, 235, 0.03);
  border-color: var(--primary-blue);
}

.option-item.selected {
  background: rgba(37, 99, 235, 0.08);
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 1px var(--primary-blue);
}

.option-letter {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.option-item.selected .option-letter {
  background: var(--primary-blue);
  color: var(--text-white);
  border-color: var(--primary-blue);
}

.option-text {
  font-size: 0.95rem;
  font-weight: 500;
}

.numerical-input-container {
  max-width: 300px;
  margin-top: 15px;
}

.numerical-input {
  width: 100%;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.numerical-input:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.exam-sidebar {
  background: var(--bg-sidebar);
  border-left: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.exam-subject-filters {
  padding: 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.exam-subject-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.filter-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.filter-pill {
  padding: 6px 12px;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: 15px;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-pill.active {
  background: var(--primary-blue);
  color: var(--text-white);
  border-color: var(--primary-blue);
}

.exam-palette-container {
  padding: 20px;
  flex-grow: 1;
  overflow-y: auto;
}

.palette-title {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.palette-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
}

.palette-btn {
  height: 40px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.88rem;
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.palette-btn.active {
  box-shadow: 0 0 0 2px var(--primary-blue);
}

/* Palette Statuses */
.pal-not-visited { background: #f1f5f9; color: #475569; }
.pal-not-answered { background: #ef4444; color: var(--text-white); border-color: #ef4444; }
.pal-answered { background: #10b981; color: var(--text-white); border-color: #10b981; }
.pal-marked { background: #8b5cf6; color: var(--text-white); border-color: #8b5cf6; }
.pal-marked-answered { background: #8b5cf6; color: var(--text-white); border-color: #8b5cf6; position: relative; }
.pal-marked-answered::after {
  content: '';
  position: absolute;
  top: 3px;
  right: 3px;
  width: 6px;
  height: 6px;
  background: #10b981;
  border-radius: 50%;
}

.exam-legend {
  padding: 20px;
  border-top: 1px solid var(--border-color);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-box {
  width: 16px;
  height: 16px;
  border-radius: 4px;
}

.exam-footer {
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 30px;
}

.exam-footer-left {
  display: flex;
  gap: 12px;
}

.exam-footer-right {
  display: flex;
  gap: 12px;
}

.btn-exam {
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-exam-red {
  color: #ef4444;
  border-color: rgba(239, 68, 68, 0.2);
}

.btn-exam-red:hover {
  background: rgba(239, 68, 68, 0.05);
}

.btn-exam-purple {
  color: var(--primary-purple);
  border-color: rgba(124, 58, 237, 0.2);
}

.btn-exam-purple:hover {
  background: rgba(124, 58, 237, 0.05);
}

.btn-exam-primary {
  background: var(--primary-blue);
  color: var(--text-white);
  border-color: var(--primary-blue);
}

.btn-exam-primary:hover {
  background: #1d4ed8;
}

.btn-exam-submit {
  background: var(--gradient-accent);
  color: var(--text-white);
  border: none;
}

.btn-exam-submit:hover {
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.2);
}

/* Floating Scientific Calculator */
.calc-wrapper {
  position: fixed;
  bottom: 80px;
  left: 30px;
  width: 320px;
  z-index: 10000;
  display: none;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border-radius: var(--radius-lg);
  border: 1px solid var(--primary-purple);
  animation: slideUp var(--transition-fast);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.calc-header {
  background: var(--gradient-accent);
  color: var(--text-white);
  padding: 12px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 0.92rem;
}

.calc-close-btn {
  background: transparent;
  border: none;
  color: var(--text-white);
  cursor: pointer;
  font-size: 1rem;
}

.calc-screen {
  background: #0f172a;
  color: #10b981;
  padding: 20px;
  font-family: monospace;
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-history {
  font-size: 0.85rem;
  opacity: 0.6;
  min-height: 18px;
}

.calc-display {
  font-size: 1.65rem;
  font-weight: 600;
}

.calc-buttons {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-color);
}

.calc-btn {
  padding: 16px;
  background: var(--bg-sidebar);
  border: none;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.calc-btn:hover {
  background: var(--bg-primary);
}

.calc-op {
  background: #f1f5f9;
  color: var(--primary-purple);
}

.calc-eq {
  background: var(--primary-blue);
  color: var(--text-white);
}

.calc-eq:hover {
  background: #1d4ed8;
}

/* Post-Test Analysis Dashboard */
.analysis-container {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 30px;
}

.analysis-scorecard {
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--gradient-main);
  color: var(--text-white);
}

@media(max-width: 768px) {
  .analysis-scorecard {
    flex-direction: column;
    gap: 30px;
    text-align: center;
  }
}

.scorecard-details {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.scorecard-circle {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  border: 4px solid var(--text-white);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.scorecard-val {
  font-size: 2.25rem;
  font-weight: 800;
}

.analysis-breakdown-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

@media(max-width: 768px) {
  .analysis-breakdown-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.breakdown-card {
  padding: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.breakdown-num {
  font-size: 1.65rem;
  font-weight: 800;
}

.br-correct { color: #10b981; }
.br-incorrect { color: #ef4444; }
.br-unattempted { color: var(--text-muted); }
.br-time { color: var(--primary-blue); }

.analysis-reviews-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.review-item {
  padding: 24px;
}

.review-badge-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.review-status-pill {
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 12px;
}

.rev-correct { background: rgba(16, 185, 129, 0.1); color: #10b981; }
.rev-incorrect { background: rgba(239, 68, 68, 0.1); color: #ef4444; }
.rev-unattempted { background: rgba(148, 163, 184, 0.1); color: #64748b; }

.review-explanation {
  margin-top: 20px;
  background: var(--bg-primary);
  border-radius: var(--radius-md);
  padding: 16px;
  border-left: 4px solid var(--primary-blue);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* --- MODULE STYLING: LIVE CLASSES VIEW --- */
.live-class-grid {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 30px;
  height: 600px;
}

@media(max-width: 1024px) {
  .live-class-grid {
    grid-template-columns: 1fr;
    height: auto;
  }
}

.live-player-container {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
}

.live-screen-wrapper {
  flex-grow: 1;
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #090d16;
  aspect-ratio: 16/9;
  box-shadow: var(--shadow-lg);
}

.live-video-sim {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.live-overlay-status {
  position: absolute;
  top: 20px;
  left: 20px;
  background: #ef4444;
  color: var(--text-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  from { opacity: 0.8; }
  to { opacity: 1; }
}

.live-overlay-viewers {
  position: absolute;
  top: 20px;
  right: 20px;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(8px);
  color: var(--text-white);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.live-controls-panel {
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.live-controls-left {
  display: flex;
  gap: 12px;
}

.btn-live-control {
  padding: 8px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
}

.btn-live-control:hover {
  background: var(--bg-primary);
}

.btn-live-control.active {
  background: var(--primary-purple);
  color: var(--text-white);
  border-color: var(--primary-purple);
}

.live-chat-panel {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.chat-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 700;
  font-size: 0.95rem;
}

.chat-messages-container {
  flex-grow: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.chat-bubble {
  display: flex;
  flex-direction: column;
  gap: 4px;
  animation: slideUp var(--transition-fast);
}

.chat-bubble-user {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat-bubble-time {
  font-weight: 400;
  color: var(--text-muted);
  font-size: 0.72rem;
}

.chat-bubble-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
  padding: 10px 14px;
  border-radius: 0 var(--radius-md) var(--radius-md) var(--radius-md);
  line-height: 1.4;
  border: 1px solid var(--border-color);
}

.chat-input-row {
  padding: 16px;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 8px;
}

.chat-field {
  flex-grow: 1;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 0.88rem;
}

.btn-chat-send {
  background: var(--primary-blue);
  color: var(--text-white);
  border: none;
  border-radius: var(--radius-md);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.btn-chat-send:hover {
  background: #1d4ed8;
}

/* --- MODULE STYLING: RECORDED VIDEOS VIEW --- */
.recorded-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.course-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  cursor: pointer;
}

.course-thumbnail-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 16/10;
  overflow: hidden;
}

.course-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.course-card:hover .course-thumb {
  transform: scale(1.05);
}

.course-play-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.course-card:hover .course-play-overlay {
  opacity: 1;
}

.play-overlay-icon {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--text-white);
  color: var(--primary-purple);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.course-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-grow: 1;
}

.course-rating-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.rating-badge {
  display: flex;
  align-items: center;
  gap: 4px;
  color: #eab308;
  font-weight: 600;
}

.course-meta-title {
  font-size: 1.1rem;
  color: var(--text-primary);
  line-height: 1.3;
}

.course-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.course-instructor {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  margin-top: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

/* Custom Video Player Hall */
.player-layout {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 30px;
}

@media(max-width: 1024px) {
  .player-layout {
    grid-template-columns: 1fr;
  }
}

.player-main-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.custom-player-wrapper {
  position: relative;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 16/9;
}

.player-video-element {
  width: 100%;
  height: 100%;
}

.player-controls-strip {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.custom-player-wrapper:hover .player-controls-strip {
  opacity: 1;
}

.player-progress-bar {
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.3);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.player-progress-filled {
  height: 100%;
  background: var(--primary-purple);
  width: 0%;
  border-radius: 2px;
}

.player-controls-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--text-white);
}

.player-ctrl-group {
  display: flex;
  align-items: center;
  gap: 16px;
}

.player-btn {
  background: transparent;
  border: none;
  color: var(--text-white);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-btn svg {
  width: 20px;
  height: 20px;
}

.player-btn:hover {
  color: var(--primary-purple);
}

.player-volume-slider {
  width: 60px;
  accent-color: var(--primary-purple);
}

.player-time-stamp {
  font-size: 0.85rem;
  font-family: monospace;
}

.video-notepad {
  padding: 24px;
}

.notepad-title {
  font-size: 1.1rem;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.notepad-textarea {
  width: 100%;
  height: 80px;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  resize: none;
  margin-bottom: 10px;
}

.notepad-saved-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 150px;
  overflow-y: auto;
  border-top: 1px solid var(--border-color);
  padding-top: 14px;
  margin-top: 10px;
}

.saved-note-item {
  font-size: 0.82rem;
  color: var(--text-secondary);
  background: var(--bg-primary);
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
}

.saved-note-time {
  font-weight: 700;
  color: var(--primary-purple);
}

.player-sidebar-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
  height: 100%;
}

.lessons-list-card {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.lessons-list-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 700;
}

.lessons-scroller {
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.lesson-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-sidebar);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.lesson-item:hover {
  border-color: var(--primary-purple);
  background: rgba(124, 58, 237, 0.02);
}

.lesson-item.active {
  background: rgba(124, 58, 237, 0.08);
  border-color: var(--primary-purple);
}

.lesson-title-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.lesson-meta-name {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-primary);
}

.lesson-meta-dur {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* --- MODULE STYLING: E-BOOKS READER --- */
.bookshelf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 30px;
}

.book-card {
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  text-align: center;
}

.book-cover-wrapper {
  width: 130px;
  height: 180px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-normal);
}

.book-card:hover .book-cover-wrapper {
  transform: translateY(-8px) scale(1.03);
  box-shadow: var(--shadow-lg);
}

.book-cover-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.book-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.book-author {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* Virtual Reader Mode Workspace */
.reader-workspace {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.reader-toolbar {
  padding: 12px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.reader-tool-group {
  display: flex;
  gap: 10px;
}

.reader-btn-action {
  padding: 8px 14px;
  background: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.reader-btn-action:hover {
  background: var(--bg-primary);
}

.reader-body-card {
  padding: 50px;
  line-height: 1.8;
  font-size: 1.05rem;
  transition: all var(--transition-fast);
}

/* Reader Typography Modes */
.reader-body-card.reader-dark {
  background: #1e293b;
  color: #f1f5f9;
  border-color: #334155;
}

.reader-body-card.reader-dark h2,
.reader-body-card.reader-dark h3 {
  color: var(--text-white);
}

.reader-body-card.reader-dark pre {
  background: #0f172a;
  color: #38bdf8;
}

.reader-body-card h2 {
  font-size: 1.6rem;
  margin-bottom: 18px;
  color: var(--primary-blue);
}

.reader-body-card h3 {
  font-size: 1.2rem;
  margin-top: 24px;
  margin-bottom: 10px;
  color: var(--primary-purple);
}

.reader-body-card p {
  margin-bottom: 16px;
}

.reader-body-card pre {
  background: #f1f5f9;
  padding: 16px;
  border-radius: var(--radius-sm);
  font-family: monospace;
  font-size: 0.9rem;
  overflow-x: auto;
  margin: 20px 0;
  border-left: 4px solid var(--primary-purple);
}

.reader-body-card ul, .reader-body-card ol {
  margin-left: 24px;
  margin-bottom: 16px;
}

.reader-highlighted {
  background-color: #fef08a;
  color: #000000;
}

/* --- MODULE STYLING: MEDIA LIBRARY --- */
.media-table-card {
  padding: 24px;
  overflow-x: auto;
}

.media-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.media-table th {
  padding: 16px;
  border-bottom: 2px solid var(--border-color);
  font-weight: 700;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.media-table td {
  padding: 16px;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.92rem;
}

.media-table tr:hover td {
  background: rgba(37, 99, 235, 0.01);
}

.media-file-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.media-file-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
}

.media-file-title {
  font-weight: 600;
  color: var(--text-primary);
}

.btn-download {
  padding: 8px 14px;
  background: rgba(124, 58, 237, 0.08);
  color: var(--primary-purple);
  border: 1px solid rgba(124, 58, 237, 0.15);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.8rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all var(--transition-fast);
}

.btn-download:hover {
  background: var(--primary-purple);
  color: var(--text-white);
}

/* --- MODULE STYLING: ADMIN PANEL --- */
.admin-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

@media(max-width: 900px) {
  .admin-grid {
    grid-template-columns: 1fr;
  }
}

.admin-action-card {
  padding: 30px;
}

.admin-card-title {
  font-size: 1.25rem;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 10px;
  color: var(--primary-purple);
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.admin-form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.admin-form-input {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.admin-form-input:focus {
  border-color: var(--primary-blue);
}

.admin-options-builder {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.admin-submit-btn {
  background: var(--gradient-accent);
  color: var(--text-white);
  border: none;
  padding: 12px;
  border-radius: var(--radius-md);
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.admin-submit-btn:hover {
  box-shadow: 0 4px 12px rgba(124, 58, 237, 0.25);
}

.admin-dials-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.admin-dial-card {
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.admin-dial-val {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--primary-blue);
  font-family: monospace;
}

/* --- FOOTER SECTION --- */
footer.site-footer {
  background: var(--bg-sidebar);
  border-top: 1px solid var(--border-color);
  padding: 40px;
  margin-top: 60px;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
}

@media(max-width: 768px) {
  footer.site-footer {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 20px;
  }
}

.footer-info-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--primary-blue);
}

.footer-logo-box {
  width: 32px;
  height: 32px;
  background: var(--gradient-accent);
  border-radius: 6px;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 380px;
}

.footer-links-col {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-col-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer-links-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

.footer-links-list li a:hover {
  color: var(--primary-blue);
  text-decoration: underline;
}

.footer-copyright {
  grid-column: 1 / -1;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--border-color);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Alert Notification Drawer */
.alert-drawer {
  position: fixed;
  top: 30px;
  right: 30px;
  background: #10b981;
  color: var(--text-white);
  padding: 16px 24px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  font-weight: 600;
  z-index: 100000;
  display: none;
  animation: slideInRight var(--transition-fast);
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}