@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Fira+Code:wght@400;600&display=swap');

:root {
  /* Cyber Colors */
  --bg-primary: #030712;    /* Deep space black */
  --bg-secondary: #0b1120;  /* Slate dark */
  --bg-tertiary: #1e293b;   /* Carbon gray */
  --bg-glass: rgba(11, 17, 32, 0.7);
  --border-glass: rgba(0, 240, 255, 0.12); /* Cyan tint */
  
  --primary: #8b5cf6;       /* Hyper Violet */
  --primary-hover: #7c3aed;
  --primary-glow: rgba(139, 92, 246, 0.35);
  
  --accent: #00f0ff;        /* Neon Cyan */
  --accent-glow: rgba(0, 240, 255, 0.25);
  
  --cyber-pink: #ff007f;    /* Laser Pink */
  --cyber-pink-glow: rgba(255, 0, 127, 0.25);
  
  --success: #39ff14;       /* Volt Green */
  --success-glow: rgba(57, 255, 20, 0.25);
  
  --warning: #f59e0b;       /* Amber */
  --error: #ff3b30;         /* Neon Red */
  
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Dimensions & Shapes */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s cubic-bezier(0.2, 0.8, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
  
  --max-width: 1280px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  letter-spacing: 0.02em;
  word-spacing: 0.05em;
  background-color: var(--bg-primary);
  /* Digital Grid Background */
  background-image: 
    linear-gradient(rgba(0, 240, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.02) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center;
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Scrollbar styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
  border-left: 1px solid var(--border-glass);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

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

button, input, select, textarea {
  font-family: inherit;
  color: inherit;
}

/* Code Styles */
code, pre, .tech-font {
  font-family: 'Fira Code', monospace;
}

/* Premium Typography & Headings */
h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  letter-spacing: -0.01em;
  word-spacing: 0.02em;
  line-height: 1.25;
}

.gradient-text {
  background: linear-gradient(90deg, var(--accent) 0%, var(--primary) 50%, var(--cyber-pink) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 15px rgba(0, 240, 255, 0.2));
}

/* App Layout */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  background: radial-gradient(circle at 5% 5%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
              radial-gradient(circle at 95% 85%, rgba(255, 0, 127, 0.08) 0%, transparent 45%);
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-glass);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}

.navbar-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem;
}

.logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1rem;
  cursor: pointer;
}

.logo-img {
  height: 96px;
  width: auto;
  filter: drop-shadow(0 0 12px rgba(0, 240, 255, 0.25));
  transition: transform var(--transition-normal);
}

.logo:hover .logo-img {
  transform: scale(1.05);
}

.logo-text-container {
  display: flex;
  flex-direction: column;
}

.logo-main {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  line-height: 1.1;
}

.logo-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.logo-sub {
  font-size: 0.65rem;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.22em;
  margin-top: 0.15rem;
  margin-left: 0;
}

.nav-links {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.nav-link {
  font-weight: 600;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent);
  background-color: rgba(0, 240, 255, 0.05);
  box-shadow: inset 0 0 10px rgba(0, 240, 255, 0.05);
}

.nav-link.active {
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background-color: rgba(0, 240, 255, 0.08);
}

.nav-auth {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 700;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition-normal);
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
  color: white;
  box-shadow: 0 4px 20px var(--primary-glow);
  border-color: rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px var(--primary), 0 0 10px var(--accent);
}

.btn-cyber {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  box-shadow: 0 0 15px var(--accent-glow);
}

.btn-cyber:hover {
  background: var(--accent);
  color: var(--bg-primary);
  box-shadow: 0 0 25px var(--accent);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
  background-color: var(--bg-tertiary);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
}

.btn-outline:hover {
  background-color: rgba(0, 240, 255, 0.05);
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

/* Main Content Wrapper */
.main-content {
  flex: 1;
  max-width: var(--max-width);
  width: 100%;
  margin: 0 auto;
  padding: 2.5rem 2rem;
}

/* Transitions */
.fade-in {
  animation: fadeIn 0.4s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(15px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 5rem 0;
  max-width: 850px;
  margin: 0 auto;
  position: relative;
}

.hero h1 {
  font-size: 4.5rem;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

/* Course Catalog Grid */
.catalog-section {
  margin-bottom: 4rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-left: 4px solid var(--accent);
  padding-left: 1rem;
}

.course-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
}

/* Glassmorphic Cyber Cards */
.card {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition-normal);
  position: relative;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.card:hover {
  transform: translateY(-8px) scale(1.01);
  border-color: var(--accent);
  box-shadow: 0 0 25px var(--accent-glow), 0 8px 32px rgba(0,0,0,0.6);
}

.card-image-wrapper {
  position: relative;
  height: 210px;
  overflow: hidden;
  border-bottom: 1px solid var(--border-glass);
}

.card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.card:hover .card-image {
  transform: scale(1.04);
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--cyber-pink);
  color: white;
  padding: 0.3rem 0.8rem;
  font-size: 0.7rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  box-shadow: 0 0 15px var(--cyber-pink-glow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.card-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-category {
  font-size: 0.75rem;
  color: var(--accent);
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.card-title {
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.card-instructor {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  border-top: 1px solid var(--border-glass);
  padding-top: 1rem;
}

.card-rating {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--warning);
  font-weight: 700;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: auto;
  border-top: 1px solid var(--border-glass);
  padding-top: 1.25rem;
}

.card-price-container {
  display: flex;
  flex-direction: column;
}

.card-price {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  text-shadow: 0 0 8px rgba(255,255,255,0.1);
}

.card-original-price {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

/* Dashboard Styles */
.dashboard-grid {
  display: grid;
  grid-template-columns: 2.2fr 1fr;
  gap: 2rem;
}

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

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 90px;
  height: 90px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  border-radius: 50%;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--accent);
  text-shadow: 0 0 10px var(--accent-glow);
}

/* Dashboard List Components */
.dashboard-block {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}

.dashboard-block h3 {
  margin-bottom: 1.5rem;
  font-size: 1.4rem;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.purchased-courses-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.purchased-item {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 1rem;
  background-color: rgba(0, 240, 255, 0.01);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
  transition: var(--transition-fast);
}

.purchased-item:hover {
  background-color: rgba(0, 240, 255, 0.03);
  border-color: var(--accent);
  box-shadow: 0 0 15px rgba(0, 240, 255, 0.05);
}

.purchased-img {
  width: 90px;
  height: 55px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.05);
}

.purchased-info {
  flex: 1;
}

.purchased-title {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.progress-container {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.progress-bar-bg {
  flex: 1;
  height: 6px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.03);
}

.progress-bar {
  height: 100%;
  background: linear-gradient(to right, var(--accent), var(--primary));
  border-radius: var(--radius-full);
  transition: width 0.5s ease-out;
  box-shadow: 0 0 8px var(--accent);
}

.progress-percent {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--accent);
  min-width: 35px;
}

/* Google Meet Live Section Widget */
.live-session-widget {
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px dashed var(--cyber-pink);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(255, 0, 127, 0.1);
}

.live-badge {
  background-color: var(--cyber-pink);
  color: white;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  box-shadow: 0 0 10px var(--cyber-pink);
}

.live-indicator-pulse {
  width: 6px;
  height: 6px;
  background-color: white;
  border-radius: 50%;
  animation: pulse 1s infinite alternate;
}

@keyframes pulse {
  from { opacity: 0.3; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1.3); }
}

/* Transactions Table */
.table-container {
  overflow-x: auto;
}

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

.transaction-table th {
  padding: 1rem;
  border-bottom: 1px solid var(--border-glass);
  color: var(--text-secondary);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.transaction-table td {
  padding: 1.25rem 1rem;
  border-bottom: 1px solid var(--border-glass);
  font-size: 0.9rem;
}

.transaction-table tr:last-child td {
  border-bottom: none;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
}

.status-success {
  background-color: var(--success-glow);
  color: var(--success);
  border: 1px solid rgba(57, 255, 20, 0.2);
}

/* Course Details Detail View */
.course-detail-view {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}

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

.course-detail-main h2 {
  font-size: 2.5rem;
  margin-bottom: 1.5rem;
}

.course-detail-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.7;
}

.syllabus-accordion {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.accordion-chapter {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.accordion-chapter-header {
  padding: 1.25rem 1.5rem;
  font-weight: 700;
  background-color: rgba(0, 240, 255, 0.01);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion-lessons {
  padding: 0 1.5rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.accordion-lesson-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.accordion-lesson-item:last-child {
  border-bottom: none;
}

.lesson-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.lesson-left i {
  color: var(--accent);
}

.lesson-duration {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.course-detail-sidebar .sticky-sidebar {
  position: sticky;
  top: 6rem;
}

.purchase-box {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
}

.purchase-box .price {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
  text-shadow: 0 0 15px var(--accent-glow);
}

.purchase-box .original-price {
  font-size: 1.2rem;
  color: var(--text-muted);
  text-decoration: line-through;
  margin-bottom: 1.5rem;
}

/* Course Player Screen */
.player-container {
  display: grid;
  grid-template-columns: 2.5fr 1fr;
  gap: 2rem;
  min-height: calc(100vh - 160px);
  height: auto;
  margin-bottom: 2rem;
}

@media (max-width: 1024px) {
  .player-container {
    grid-template-columns: 1fr;
    height: auto;
  }
  .playlist-sidebar {
    position: static;
    max-height: none;
    height: auto;
  }
}

.video-area {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  height: 100%;
}

.iframe-wrapper {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  height: 0;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  background-color: #000;
}

.iframe-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-meta {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
}

.video-tabs-headers {
  display: flex;
  gap: 1.5rem;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 0.75rem;
  margin-top: 1.5rem;
}

.tab-header {
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  padding-bottom: 0.5rem;
  position: relative;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 0.05em;
}

.tab-header.active {
  color: var(--accent);
  text-shadow: 0 0 8px var(--accent-glow);
}

.tab-header.active::after {
  content: '';
  position: absolute;
  bottom: -0.75rem;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}

.tab-pane {
  display: none;
  padding-top: 1.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.tab-pane.active {
  display: block;
}

/* Course Player Sidebar (Playlist) */
.playlist-sidebar {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  height: fit-content;
  max-height: calc(100vh - 180px);
  position: sticky;
  top: 6rem;
  overflow: hidden;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.playlist-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-glass);
}

.playlist-header h3 {
  font-size: 1.2rem;
}

.playlist-items {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.playlist-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-fast);
  border: 1px solid transparent;
}

.playlist-item:hover {
  background-color: rgba(0, 240, 255, 0.03);
}

.playlist-item.active {
  background-color: rgba(0, 240, 255, 0.08);
  border-color: var(--accent-glow);
}

.lesson-check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}

.lesson-check.completed {
  background-color: var(--success);
  border-color: var(--success);
  color: var(--bg-primary);
  box-shadow: 0 0 8px var(--success);
}

.playlist-item-info {
  flex: 1;
}

.playlist-item-title {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.playlist-item.active .playlist-item-title {
  color: var(--accent);
  font-weight: 700;
}

.playlist-item-time {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(3, 7, 18, 0.9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition-normal);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--accent);
  box-shadow: 0 0 30px rgba(0, 240, 255, 0.15);
  border-radius: var(--radius-lg);
  max-width: 500px;
  width: 90%;
  padding: 2.5rem;
  position: relative;
  transform: scale(0.9);
  transition: var(--transition-normal);
}

.modal-overlay.open .modal-content {
  transform: scale(1);
}

.close-modal {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.close-modal:hover {
  color: var(--accent);
}

/* Premium Checkout Layout */
.checkout-container {
  max-width: 950px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  gap: 3rem;
}

@media (max-width: 768px) {
  .checkout-container {
    grid-template-columns: 1fr;
  }
}

.checkout-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.payment-tab-buttons {
  display: flex;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  padding: 0.35rem;
  border: 1px solid var(--border-glass);
}

.payment-tab-btn {
  flex: 1;
  padding: 0.75rem;
  border: none;
  background-color: transparent;
  color: var(--text-secondary);
  font-weight: 700;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition-fast);
  text-align: center;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.payment-tab-btn.active {
  background-color: var(--accent);
  color: var(--bg-primary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.payment-form-pane {
  display: none;
}

.payment-form-pane.active {
  display: block;
}

/* UPI Scan & Verification Panel styles */
.upi-checkout-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  background-color: rgba(0, 240, 255, 0.01);
  border: 1px solid var(--border-glass);
  padding: 2rem;
  border-radius: var(--radius-lg);
}

.qr-code-box {
  width: 180px;
  height: 180px;
  background-color: white;
  padding: 10px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 25px rgba(255,255,255,0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.qr-code-box::before {
  content: '';
  position: absolute;
  top: -5px;
  left: -5px;
  width: 25px;
  height: 25px;
  border-top: 3px solid var(--accent);
  border-left: 3px solid var(--accent);
}

.qr-code-box::after {
  content: '';
  position: absolute;
  bottom: -5px;
  right: -5px;
  width: 25px;
  height: 25px;
  border-bottom: 3px solid var(--accent);
  border-right: 3px solid var(--accent);
}

.copy-field-group {
  display: flex;
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.copy-val {
  flex: 1;
  padding: 0.75rem 1rem;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  color: var(--accent);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.copy-btn {
  background-color: var(--bg-tertiary);
  border: none;
  color: var(--text-primary);
  padding: 0 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
}

.copy-btn:hover {
  background-color: var(--accent);
  color: var(--bg-primary);
}

/* Card 3D Flip System */
.card-preview-container {
  perspective: 1000px;
  width: 100%;
  height: 200px;
  margin-bottom: 2rem;
}

.credit-card-3d {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.credit-card-3d.flipped {
  transform: rotateY(180deg);
}

.card-face {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.card-front {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.card-back {
  background: linear-gradient(135deg, #090d16 0%, #1e1b4b 100%);
  transform: rotateY(180deg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
}

.card-chip {
  width: 40px;
  height: 30px;
  background: linear-gradient(135deg, #fbbf24 0%, #d97706 100%);
  border-radius: 6px;
}

.card-brand {
  text-align: right;
  font-weight: 800;
  font-size: 1.25rem;
  font-style: italic;
  letter-spacing: -0.05em;
  text-shadow: 0 0 5px rgba(255,255,255,0.2);
}

.card-preview-number {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  margin: 1.25rem 0;
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
  font-family: 'Fira Code', monospace;
}

.card-preview-bottom {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  text-transform: uppercase;
}

.card-label {
  font-size: 0.6rem;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 2px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.card-preview-name {
  font-weight: 600;
}

.card-black-bar {
  height: 40px;
  background-color: black;
  width: 100%;
  margin-top: 10px;
}

.card-signature-bar {
  background-color: white;
  height: 35px;
  margin: 1.5rem 1.5rem 0 1.5rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 10px;
  color: black;
  font-weight: 700;
  font-style: italic;
  font-family: monospace;
}

/* Card Form Controls */
.form-group {
  margin-bottom: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-control {
  background-color: rgba(255,255,255,0.02);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  color: var(--text-primary);
  outline: none;
  transition: var(--transition-fast);
  font-size: 0.95rem;
}

.form-control:focus {
  border-color: var(--accent);
  background-color: rgba(0,240,255,0.03);
  box-shadow: 0 0 0 3px rgba(0, 240, 255, 0.15);
}

select.form-control option {
  background-color: var(--bg-secondary);
  color: var(--text-primary);
}

/* Razorpay Simulator UI */
.razorpay-simulation-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  border-top: 4px solid #3399cc;
}

.razorpay-logo-sim {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.razorpay-badge {
  background-color: rgba(51, 153, 204, 0.15);
  color: #3399cc;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  display: inline-block;
  margin-bottom: 1rem;
}

/* Admin / Instructor Layout */
.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-glass);
  padding-bottom: 1.5rem;
}

.admin-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2.5rem;
}

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

.admin-form-box {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  height: fit-content;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.admin-lesson-builder {
  background-color: rgba(0, 240, 255, 0.01);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1rem;
  margin-top: 0.5rem;
}

.admin-lesson-input-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr auto;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.lesson-list-builder-items {
  max-height: 200px;
  overflow-y: auto;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-glass);
}

.lesson-builder-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  padding: 0.5rem 0.75rem;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
}

.lesson-builder-item span {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 160px;
}

/* Floating WhatsApp Link (Restricted to paid students) */
.whatsapp-float {
  display: none; /* Conditional trigger in app.js */
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #25d366;
  color: white;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4), 0 0 15px rgba(37, 211, 102, 0.2);
  z-index: 999;
  cursor: pointer;
  transition: var(--transition-normal);
  animation: whatsappPulse 2s infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 6px 25px rgba(37, 211, 102, 0.6), 0 0 25px rgba(37, 211, 102, 0.4);
}

@keyframes whatsappPulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
  70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

/* Custom Icons */
.icon-success {
  color: var(--success);
}

.icon-error {
  color: var(--error);
}

/* Footer styling */
.footer {
  margin-top: auto;
  padding: 2.5rem 2rem;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-glass);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--max-width);
  margin: 0 auto;
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-link:hover {
  color: var(--accent);
}

/* Razorpay Simulated Modal Overlay */
.razorpay-modal-sim {
  max-width: 380px;
  background-color: #ffffff;
  color: #1e293b;
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  border: none;
}

.razorpay-sim-header {
  background-color: #0b1a30;
  color: white;
  padding: 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.razorpay-sim-logo-circ {
  width: 48px;
  height: 48px;
  background-color: #3399cc;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  color: white;
  font-size: 1.25rem;
}

.razorpay-sim-details h4 {
  font-size: 1.1rem;
  font-weight: 600;
}

.razorpay-sim-details p {
  font-size: 0.8rem;
  color: #94a3b8;
}

.razorpay-sim-amount {
  margin-left: auto;
  text-align: right;
}

.razorpay-sim-amount .amt {
  font-size: 1.2rem;
  font-weight: 700;
}

.razorpay-sim-amount .cur {
  font-size: 0.8rem;
  color: #94a3b8;
}

.razorpay-sim-body {
  padding: 1.5rem;
  background-color: #f8fafc;
}

.razorpay-sim-section-title {
  font-size: 0.75rem;
  text-transform: uppercase;
  color: #64748b;
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.razorpay-sim-option {
  display: flex;
  align-items: center;
  gap: 1rem;
  background-color: white;
  border: 1px solid #e2e8f0;
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 0.75rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.razorpay-sim-option:hover {
  border-color: #3399cc;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.razorpay-sim-option-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3399cc;
  font-size: 1.1rem;
}

.razorpay-sim-option-text {
  flex: 1;
}

.razorpay-sim-option-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: #1e293b;
}

.razorpay-sim-option-subtitle {
  font-size: 0.75rem;
  color: #64748b;
}

.razorpay-sim-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid #e2e8f0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: white;
}

.razorpay-secured {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.7rem;
  color: #64748b;
}

.razorpay-secured i {
  color: #10b981;
}

/* Authentication Login Modal Specifics */
.login-modal-content {
  background-color: var(--bg-secondary);
  border: 1px solid var(--accent);
  box-shadow: 0 0 35px rgba(0, 240, 255, 0.2);
  border-radius: var(--radius-lg);
  max-width: 420px;
  width: 90%;
  padding: 3rem 2.5rem;
  position: relative;
  transform: scale(0.9);
  transition: var(--transition-normal);
  border-top: 5px solid var(--accent);
}

.login-header-section {
  text-align: center;
  margin-bottom: 2rem;
}

.login-header-section h3 {
  font-size: 1.6rem;
  letter-spacing: -0.04em;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.login-header-section p {
  font-size: 0.75rem;
  font-family: 'Fira Code', monospace;
  color: var(--accent);
}

.login-error-msg {
  background-color: rgba(255, 59, 48, 0.15);
  color: var(--error);
  border: 1px solid rgba(255, 59, 48, 0.3);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  margin-bottom: 1.25rem;
  display: none; /* Conditional toggle */
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
}

.credentials-hint-box {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-glass);
  padding: 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 1.5rem;
}

.credentials-hint-box strong {
  color: var(--accent);
  font-family: 'Fira Code', monospace;
}

.logout-btn-header {
  background: transparent;
  border: 1px solid var(--cyber-pink);
  color: var(--cyber-pink);
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-sm);
  font-weight: 700;
  font-size: 0.75rem;
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
}

.logout-btn-header:hover {
  background-color: var(--cyber-pink);
  color: white;
  box-shadow: 0 0 12px var(--cyber-pink-glow);
}

.agency-card-layout {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
  margin-top: 3rem;
  border-top: 1px solid var(--border-glass);
  padding-top: 2.5rem;
}

@media (max-width: 900px) {
  .agency-card-layout {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 500px) {
  .agency-card-layout {
    grid-template-columns: 1fr;
  }
}

.agency-service-card {
  background-color: rgba(0, 240, 255, 0.01);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  transition: var(--transition-fast);
  text-align: left;
}

.agency-service-card:hover {
  border-color: var(--accent);
  background-color: rgba(0, 240, 255, 0.03);
  box-shadow: 0 0 15px rgba(0,240,255,0.04);
}

.agency-service-card i {
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.agency-service-card h4 {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.agency-service-card p {
  font-size: 0.75rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

/* About Page Awards Styling */
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.award-card {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  text-align: left;
  transition: var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.award-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(to right, var(--accent), var(--cyber-pink));
  opacity: 0.7;
}

.award-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 10px 25px rgba(0, 240, 255, 0.1);
}

.award-icon {
  font-size: 2.2rem;
  color: var(--accent);
  margin-bottom: 1rem;
  filter: drop-shadow(0 0 8px var(--accent-glow));
}

.award-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.award-subtitle {
  font-size: 0.8rem;
  color: var(--cyber-pink);
  font-family: 'Fira Code', monospace;
  margin-bottom: 0.5rem;
}

.award-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Contact Page Styling */
.contact-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

@media (max-width: 900px) {
  .contact-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

.contact-info-box {
  background-color: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info-icon {
  font-size: 1.5rem;
  color: var(--accent);
  margin-top: 0.2rem;
}

.contact-info-text h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.contact-info-text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.contact-map-sim {
  height: 200px;
  background-color: rgba(255,255,255,0.01);
  border: 1px dashed var(--border-glass);
  border-radius: var(--radius-md);
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  gap: 0.5rem;
}

/* Live Playlist Sidebar Item */
.live-playlist-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition-normal);
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.08) 0%, rgba(139, 92, 246, 0.08) 100%);
  border: 1px solid var(--cyber-pink);
  margin-bottom: 0.5rem;
  box-shadow: 0 0 10px rgba(255, 0, 127, 0.2);
  text-decoration: none;
}

.live-playlist-item:hover {
  background: linear-gradient(135deg, rgba(255, 0, 127, 0.15) 0%, rgba(139, 92, 246, 0.15) 100%);
  border-color: var(--cyber-pink);
  box-shadow: 0 0 15px rgba(255, 0, 127, 0.4);
}

.live-playlist-indicator {
  width: 10px;
  height: 10px;
  background-color: #ff3b30;
  border-radius: 50%;
  box-shadow: 0 0 8px #ff3b30;
  animation: live-blink 1s infinite alternate;
}

@keyframes live-blink {
  from { opacity: 0.4; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1.2); }
}

.live-playlist-info {
  flex: 1;
}

.live-playlist-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.02em;
}

.live-playlist-subtitle {
  font-size: 0.7rem;
  color: var(--cyber-pink);
  margin-top: 0.2rem;
  font-family: 'Fira Code', monospace;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}